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10 October 2024, Volume 45 Issue 10

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Cover and Content of Chemical Journal of Chinese Universities Vol.45 No.10(2024)

2024, 45(10):  1-5. 

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Article: Inorganic Chemistry

Preparation of ZSM-5 Encapsulated Pt-La Bimetallic Catalysts and Their Catalytic Performance for iso-Butane Cracking

HU Wenxin, ZHAO Ying, DU Danyang, ZHANG Hongdan, CHENG Peng

2024, 45(10):  20240244.  doi:10.7503/cjcu20240244

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Pt-xLa@HZSM-5 catalysts（x represents the molar ration of La to Pt， x=0.1， 0.25， 0.5 and 1.0 in the reaction system） were synthesized via one-pot hydrothermal method. The structure， morphology， acidity and metal species state of catalysts were investigated by X-ray diffraction， scanning and transmission electron microscopy， temperature-programmed desorption of ammonia， pyridine-adsorption infrared spectroscopy， and X-ray photoelectron spectroscopy. According to the results of activity test， Pt-0.25La@HZSM-5 had the best catalytic performance for iso-butane cracking， with a yield of 51.1% for ethylene and propylene at 625 ℃. However， under the same reaction conditions， the yield of ethylene and propylene was only 41.4% on Pt@HZSM-5-0.25La catalyst synthesized by impregnation method for the iso-butane catalytic cracking.



Synthesis， Characterization and Catalytic Property of the Cu（II） Complex Based on Benzene Sulfonic Acid Ligand

WANG Xin, QI Jinyang, YANG Ruijie, SONG Zhiguo, WANG Min

2024, 45(10):  20240297.  doi:10.7503/cjcu20240297

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Cu（Im）₄（p-CH₃C₆H₄SO₃）₂ was prepared by solvent thermal synthesis using copper nitrate trihydrate， sodium p-methylbenzenesulfonate（p-CH₃C₆H₄SO₃Na） and imidazole（Im） as raw materials. It was characterized by means of single crystal X-ray diffraction， infrared spectroscopy， thermogravimetric analysis， nitrogen adsorption/ desorption analysis and powder X-ray diffraction. By single crystal X-ray diffraction analysis， it could be seen that the center Cu²⁺ of the complex was coordinated with O atoms in two p-methylbenzenesulfonate anions and N atoms in four imidazoles to form a three-dimensional network structure by intermolecular hydrogen bonding force. The Knoevenagel condensation reaction was used as a probe to investigate the catalytic activity of the complex. The results showed that the complex exhibited acid-base synergistic catalysis in the Knoevenagel condensation reaction. The reaction time was short， the products yields were high， and the catalyst could be reused many times. Finally， the activity sites and reaction sites of Cu（Im）₄（p-CH₃C₆H₄SO₃）₂， benzaldehyde and malononitrile were predicted by density functional theory（DFT） and verified by X-ray photoelectron spectroscopy， and the possible catalytic mechanism was deduced.



Construction of Efficient Bienzyme Cascade Catalytic System by “Yolk-shell” Structure

JIANG Jiaqi, YANG Hongxia, YAN Mengfei, SHI Xinyao, LI Jiaqi, JIANG Yucheng

2024, 45(10):  20240272.  doi:10.7503/cjcu20240272

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This work proposes a bio-composite， ZIF-8@GOx-CPO@ZIF-8， which is constructed by “Yolk-shell” characteristic metal-organic framework（MOF） for specific division of glucose oxidase（GOx） and chloroperoxidase （CPO） by encapsulating them at different compartments. The structure of “Yolk-shell” can provide nano-proximity effect for encapsulated enzymes. H₂O₂ generated in situ by GOx immediately starts the enzymatic reaction of adjacent CPO， effectively reducing the diffusion resistance of reactants and the decomposition and escape of H₂O₂， and avoiding the interaction of the two enzymes during reuse. Compared with the free enzymes in the homogeneous buffer， the cascade catalytic efficiency of ZIF-8@GOx-CPO@ZIF-8 is improved. Owing to the shielding effect provided by the MOF， the thermal stability and organic solvent tolerance of the enzyme is also greatly improved. The “Yolk-shell” structure also effectively inhibits the leakage of enzyme molecules during the reuse process of the material. After 20 reuses， the bio-composite ZIF-8@GOx-CPO@ZIF-8 can keep 72% of the initial cascade efficiency. The cascade reaction of GOx-CPO can generate HClO， which is applied in efficient decolorization of azo dye and fresh-keeping of fruit. The decolorization of azo dye orange G（0.3 mmol/L） was almost completed in only 15 min with 98% decolorization efficiency by 1 mg/L of ZIF-8@GOx-CPO@ZIF-8. ZIF-8@GOx-CPO@ZIF-8 bienzyme cascade catalytic system is efficient， stable， mild and green with great application potential.



Analytical Chemistry

3，4-Dimethoxychalcone Fluorescent Probe for the Detection of Human Serum Albumin

WANG Chao, JIA Aiping, ZHANG Yawen, CHEN Guang

2024, 45(10):  20240273.  doi:10.7503/cjcu20240273

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Human serum albumin（HSA） is the most abundant protein in human serum， involved in many important physiological processes and closely related to many diseases. It is an important biomarker for clinical diagnosis. In this paper， the chalcone compounds with simple structure， easy synthesis， and easily regulated fluorescence properties were used as the fluorescent skeleton. A D-π-A fluorescent probe， 3，4-dimethoxychalcone（DDP）， was designed for the detection of HSA by introducing two methoxy groups to the A ring of chalcone. The structure of the probe was confirmed by ¹H NMR and ¹³C NMR as well as MS. The push-pull electronic effect of the probe and its fluorescence response to HSA were modulated by the introduction of the two methoxy groups. UV-visible absorption spectroscopy and fluorescence spectroscopy were further used to investigate the spectral properties of DDP and its interaction with HSA. The fluorescence spectra of DDP showed that its fluorescence is highly sensitive to the polarity of the solvent， and its fluorescence emission wavelength undergoes a red-shift with the increase of solvent polarity. The fluorescence enhancement of DDP in response to HSA was 73-fold， and the fluorescence quantum yields before and after response to HSA were 0.2% and 4.0%， respectively. DDP has excellent selectivity in response to HSA with fast response and stable fluorescence. The binding stoichiometry ratio of DDP to HSA was determined to be 1∶1 by Job’s plot and fluorescence titration. The limit of detection（LOD） was 40.32 nmol/L， and the binding constant was 3.95×10⁵ L/mol. The binding site of DDP with HSA was verified to be DS2 region with the displacement test. This probe enables highly sensitive and selective detection of HSA.



Terahertz Spectroscopy of Lamotrigine and Phthalimide co-Crystals

ZHENG Zhuanping, WANG Bo, LIU Yuhang, HUANG Jing, LIU Xiao

2024, 45(10):  20240242.  doi:10.7503/cjcu20240242

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Lamotrigine is a prescribed pharmaceutical for the treatment of epilepsy， convulsions， and other symptoms， but it has low solubility in water. Pharmaceutical cocrystals， as a new solid form of drugs， are formed through the non-covalent bonding of active pharmaceutical ingredients（API） and cocrystal formers（CCF）. This non-covalent bonding can alter the internal structure of drug molecules and the weak intermolecular interactions， effectively improving the physicochemical properties of APIs， such as solubility， stability and bioavailability. In this article， lamotrigine-phthalimide co-crystals were investigated using terahertz time-domain spectroscopy（THz-TDS）. Initially， the experimental THz spectra of lamotrigine， phthalimide， their physical mixture and the cocrystals were measured in the 0.5—5.0 THz range. Experimental data reveal new absorption peaks at 2.18 and 2.49 THz in the co-crystal， indicating that THz-TDS can effectively distinguish lamotrigine， phthalimide， and their co-crystals. Structural optimization and spectral simulation were carried out on the constructed theoretical form and periodic structure using density functional theory， and the calculated results can effectively reconstruct the experimental spectrum. Through the discussion and analysis of the origins of THz absorption peaks in co-crystals， it is found that the intermolecular forces of lamotrigine-phthalimide co-crystals mainly originate from π-π stacking force， and hydrogen bonding contributes slightly.



Organic Chemistry

Design， Synthesis and Fungicidal Activity of Pyrazinamide Analogs

WANG Gang, LIANG Shuang, SHAN Zhonggang, YING Junwu, LYU Liang, LI Bin, YANG Huibin

2024, 45(10):  20240369.  doi:10.7503/cjcu20240369

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Pyraziflumid was a novel pyrazinamide analog fungicide developed by Nihon Nohyaku Co. In this work， 16 pyrazinamide analogs were synthesized using substituted pyrazine acid and 2-methyl-3-nitrophenol as initial materials through 4 steps. The structures of the target compounds were confirmed by nuclear magnetic resonance （¹H NMR， ¹³C NMR） and high resolution mass spectrometer（HRMS）. The results of fungicidal activity at greenhouse showed that pyrazinamide analogs had excellent fungicidal activities against corn rust at 6.25 mg/L. Among them， the fungicidal activities of compounds 4， 5， 7， 8， 15 and 16 against corn rust at 6.25 mg/L were 100%. Molecular docking simulations revealed that compound 16 interacted with TRP-173 of succinate dehydrogenase（SDH） through hydrogen bonding， which could explain the probable mechanism of action between compound 16 and the target protein. These results indicated that compound 16 might be a promising fungicide candidate and provide valuable reference for further investigation.



Physical Chemistry

Preparation of a Pyrazine-based Covalent Organic Polymer and Its Applition in Aqueous Zinc Ion Battery Cathode

CHEN Hui, LYU Shuangkun, WANG Chunfang, LYU Haiming, ZHANG Yuqi, LI Ran

2024, 45(10):  20240333.  doi:10.7503/cjcu20240333

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Covalent organic polymers（COPs） are polymerized organic small molecule monomers with a highly cross-linked network structure connected by covalent bonds， and thus can exhibit unique electrochemical properties. In the field of aqueous zinc ion batteries（AZIBs）， COPs are used as electrode materials involved in ion embedding and de-embedding， and have attracted much attention due to their unique redox active sites and stable framework structures. In this paper， a novel covalent organic polymer， TAPT-HAT-COP， which contains a variety of electrochemical active sites， such as pyrazine group， phenylimine group， and carbonyl group， was prepared and applied to the anode of AZIBs. Experimental results show that this material exhibited excellent multiplicity performance. At a current density of 0.5 A/g， its first discharge specific capacity reached 137 mA∙h∙g^‒1， and at a high current density of 5 A/g， the electrode material maintained 45.4% of its capacity after 4000 cycles. This study provides a new idea for the design of organic cathode materials and theoretical guidance for the development of new organic cathode materials for advanced aqueous zinc ion batteries.



Preparation and Electrocatalytic Degradation Properties and Mechanism of Organic Pollutants of Solid Waste-based Aerogel Particle Electrode

LI Yun, LI Hongyan, ZHANG Feng, XIAO Zijun, WANG Fang, CUI Jiali, YANG Qun

2024, 45(10):  20240320.  doi:10.7503/cjcu20240320

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Waste bacteria stick（MS） and red mud（RM） were calcined to obtain powdered waste bacteria stick red mud biochar（MSRMBC）. The aerogel particle electrode（MSRMBC@SA） was prepared by embedding MSRMBC with sodium alginate（SA） as the skeleton by suspension titration CaCl₂ method. The electrode was characterized by scanning electron microscope（SEM）， energy dispersive spectrom（EDS）， fourier transform infrared spectroscopy （FTIR）， X-ray diffraction（XRD）， N₂ adsorption-desorption（BET） and cyclic voltammetric curve（CV）. The three- dimensional electrofenton system（3D-EF-MSRMBC@SA） was constructed by MSRMBC@SA. Using carbamazepine（CBZ） as the model compound， the effects of MSRMBC@SA dosage， voltage， aeration rate and pH on the electrocatalytic performance of MSRMBC@SA were investigated. Under the optimal degradation conditions， the degradation rate of CBZ（10 mg/L） was 86. 05%. Because MSRMBC@SA has good pH adjustment ability， the system is less affected by pH value. Free radical quenching， electron spin resonance（ESR） and X-ray photoelectron spectroscopy（XPS） characterization showed that ^· OH was the main active species， and MSRMBC@SA played a key catalytic role in the degradation of CBZ. Further studies show that MSRMBC@SA has good stability， and 3D-EF- MSRMBC@SA has lower energy consumption and better degradation effect than 2D-EF and 3D-EF-MSRMBC. MSRMBC@SA can effectively reduce the biological toxicity of CBZ solution， and has a good application prospect for the actual degradation of CBZ antibiotic wastewater.



Optimization of Kinetic Mechanism for Methane Combustion Based on Machine Learning

CAO Shuangshuang, HUANG Jiyong, LI Wei, ZHANG Houjun, LI Xiangyuan, HAN You

2024, 45(10):  20240296.  doi:10.7503/cjcu20240296

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In this work， the experimental data of ignition delay time（T=1084—2175 K， p=7.3×10⁴—2.4×10⁶ Pa， φ=0.2—2.0） and laminar flame speed（T=293—600 K， p=5.1×10⁴—1.1×10⁶ Pa， φ=0.4—2.0） were taken as the optimization objectives based on the machine-learning model constructed by radial basis function interpolation method， and pre-exponential factors and activation energies of CH₄ combustion mechanism were optimized， and a CH₄ combustion mechanism that can be used in a wide range of working conditions was obtained. Compared with the Ori-CH₄ mechanism， the mean error of the Opt-CH₄ mechanism is reduced by 57.46% in the ignition delay times and 21.55% in the laminar flame speeds. The Opt-CH₄ mechanism was used to predict the ignition delay times， laminar flame speeds and the variation tendency of species concentration in jet stirred reactor. The Opt-CH₄ mechanism showed superior prediction accuracy. Under the conditions of T=1491.5 K， p=1.0×10⁵ Pa， 4.988%CH₄\19.953%O₂\75.059%N₂（volume fraction）， the difference of sensitivity of CH₃+O₂CH₂O+OH and CH₂O+O₂HCO+HO₂ in each mechanism is the main reason for the difference of prediction accuracy of CH₄ mechanism before and after optimization. Therefore， the machine learning method has a broad application prospect in the optimization of fuel combustion reaction kinetics mechanism parameters.



Preparation of Carbon Foam-loaded One-dimensional TiO₂ for Photothermal Catalytic Evaporators and Its Performances of Evaporation and Degradation for Wastewater

ZHANG Yidong, YUAN Jiaxiang, FANG Wei, LU Chenglong, CHEN Hui, HE Xuan, DU Xing, LI Weixin, WANG Daheng, ZHAO Lei

2024, 45(10):  20240295.  doi:10.7503/cjcu20240295

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Interfacial photothermal water evaporation is a very promising research technique for organic wastewater purification， but there is also the problem of organic pollutant deposition on the surface of the photothermal evaporator. In this paper， composite photothermal catalytic material（CF@RT） was prepared by introducing nano-TiO₂ with photocatalytic effect into porous carbon foam photothermal absorber for simultaneous degradation of pollutants during photothermal wastewater evaporation. The structure and photothermal catalytic performance of this composite were analyzed. The results show that a large number of one-dimensional TiO₂ nanorods with a diameter of about 10 nm were grown in CF@RT， and the nanorods were homogeneously dispersed on the surface of the carbon foam and in the pore structures. The introduction of TiO₂ effectively broadens the range of the material's response to light， making the composite material dual-functional for photothermal and photocatalysis. Porous carbon foam evaporates water by absorbing visible-infrared light and converting it to heat， while one-dimensional TiO₂ absorbs UV-visible light to form electron-hole pairs and degrades pollutants through redox eactions. Meanwhile， the combination of carbon foam and TiO₂ also led to a synergistic promotional effect between photothermal and photocatalysis. The photocatalytic process inhibits pollutant deposition to promote the continuous enhancement of the evaporation performance of the photo-thermal conversion， and the photothermal effect accelerates the separation and migration of photogenerated electron-hole pairs to promote photocatalytic degradation. Under one solar irradiation， the MB degradation rate of the most effective CF@RT sample reached 74% in 2.5 h with a photothermal water evaporation rate of 0.89 kg·m^-2·h^-1. It is worth mentioning that the water evaporation of the composite evaporator has revealed a featured improvement up to 0.95 kg·m^-2·h^-1 after 4 cycles.



Heavy Atom Effect’s Influence on the Triplet State and Upconversion Efficiency in MR-TADF Systems

WEI Yaxiong, YI Kai, DUAN Doudou, XU Xinsheng

2024, 45(10):  20240282.  doi:10.7503/cjcu20240282

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Multi-resonance thermally activated delayed fluorescence（MR-TADF） containing heavy atoms exhibits low energy loss， intense absorption， high intersystem crossing（ISC） efficiency， and long triplet state lifetime. In this work， three heavy metal-free MR-TADF molecules combined oxygen， sulfur， and selenium atoms were chosen， designated as BN-2O， BN-2S， and BN-2Se. The heavy atom effect of these compounds was studied using theoretical calculations and nanosecond transient absorption spectra. The ISC efficiencies of BN-2O， BN-2S， and BN-2Se are determined to be 39.4%， 74.7%， and 95.0%， respectively， while the triplet state lifetimes are found to exceed 10 μs. The upconversion system comprising BN-2Se/1，4-bis（triisopropylsilethynyl） naphthalene（1，4-DTNA） demonstrates a high upconversion quantum yield（Φ_UC， the maximum value of 50%） of up to 8.7% in solution， with a threshold excitation intensity as low as 1.7 mW/cm²， which is lower than the solar irradiance of 2.7 mW/cm². Additionally， the economically viable BN-2S and BN-2O show satisfactory Φ_UC values of 5.9% and 3.9%， with low I_th values of 6.2 and 15 mW/cm².



Synthesis of Pyridazine-containing Amide Ethers and Experimental Evaluation and Theoretical Studies of Their Corrosion Inhibition

REN Junqing, MA Yule, MA Yuxin, GAO Shaoqi, QIU Yuhao, CHEN Guobo, XIA Shuwei, YU Liangmin

2024, 45(10):  20240235.  doi:10.7503/cjcu20240235

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To address the corrosion issues of carbon steel in industrial applications， three pyridazine-containing amide ether compounds（PCAE） were designed and synthesized. The corrosion inhibition of PCAE was investigated for carbon steel in 1 mol/L HCl solution by using electrochemical analysis and surface characterization. The results indicated that all three compounds acted as mixed-type inhibitors but of predominantly anodic type. The inhibition efficiencies of PCAE1 and PCAE2 were 96.8% and 93.1% at 500 mg/L， respectively， while PCAE3 could achieve an inhibition efficiency of 96.5% at 100 mg/L. The chemisorption of PCAE on carbon steel fitted well with the Langmuir isotherm. Surface morphology analysis showed a smoother surface for carbon steel in the presence of PCAE in acidic solution. Quantum chemical calculations demonstrated that abundant adsorption sites exhibited in the PCAE molecules. The superior inhibition efficiency of PCAE3 could be attributed to the electron accepting effects， and the C_2pz and carbonyl O_2pz in the branched substituents contribute more to the lowest unoccupied molecular orbital （LUMO）.



Construction of Ni/N Co-doped Self-supported Carbon Foam Electrodes for Electrocatalytic CO₂ Reduction

ZHU Jiajia, RUI Jialiang, SHI Wenwen, GAN Kaining, LI Hongqiang, HE Xiaojun

2024, 45(10):  20240203.  doi:10.7503/cjcu20240203

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A series of nickel/nitrogen co-doped self-supported carbon foam electrodes were prepared by impregnation， curing and carbonization using asphalt as the carbon source and polyurethane foam as the template， and then characterized by scanning electron microscopy， transmission electron microscopy， N₂ adsorption-desorption analysis， Raman spectroscopy and X-ray photoelectron spectroscopy. The results show that the prepared carbon foam electrodes possess a three-dimensional macroporous skeleton structure. Moreover， their surface is abundant in defect sites and Ni—N coordination structures. The content of N species can be regulated by varying the carbonization temperature， thereby enabling the regulation of the content of Ni—N _x active sites. The carbon foam electrodes were directly used as a self-supported electrode for the electroreduction of CO₂， and a syngas with a stable and controllable H₂/CO molar ratio could be obtained. The H₂/CO molar ratio can be tuned from 1/2 to 2/1 within the potential window of ‒0.9~‒1.3 V（vs. RHE）. In addition， the current density of the carbon foam electrode obtained at the carbonization temperature of 900 ℃ can be maintained at 5.7 mA/cm² after a sustained reaction for 10 h， and the H₂/CO molar ratio can be maintained at about 1/1.



Catalytic Performance of Zr-MOF Supported Poly Ionic Liquid for CO₂ Cycloaddition Reaction

ZHANG Mengjia, ZOU Nan, LUO Jiamei, ZHONG Xionghui, LI Ling

2024, 45(10):  20240113.  doi:10.7503/cjcu20240113

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Through the method of solvent-free confined encapsulation， dibromo-p-diphenyl and 4，4′-bipyridine were adsorbed into the UiO-67 material， and then in situ polymerized into the polymer ionic liquid PBpy-Br. The composite PBpy-Br@UiO-67 contains three kinds of active centers： Br^-， Zr-OH/Zr-OH₂ and N heterocyclic. The structure was characterized by X-ray diffraction（XRD）， Fourier transform infrared（FTIR） spectroscopy， scanning electron microscopy（SEM）， ¹³C nuclear magnetic resonance spectrometry（¹³C NMR）， Brunauer-Emmett-Teller（BET） analysis and thermogravimetric analysis（TGA）. The composite was applied to catalyze the cycloaddition reaction of CO₂ and epichlorohydrin. On the basis of single factor experiments， the optimal reaction conditions determined by response surface optimization were 100 ℃， p_CO2=0.1 MPa， PBpy-Br@UiO-67 mass fraction of 0.22% and 22 h. Under the optimum reaction conditions， the yield of cyclochlorocarbonate reached 99.6%， and the conversion decreased by only 2.3% after 5 cycles. When the composite was used to catalyze other epoxides， a conversion of over 50% was obtained. PBpy-Br@UiO-67 has milder reaction conditions and higher catalytic efficiency， which provides a new catalytic system for CO₂ fixation and conversion.



Polymer Chemistry

Preparation and Application of Lignin-based Poly（ionic liquid） Membranes

YANG Siqing, XU Shenjian, TANG Qinhan, MIAO Han, YANG Xi, LIN Shaoliang

2024, 45(10):  20240248.  doi:10.7503/cjcu20240248

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Lignin star-shaped grafted poly（acrylic acid） copolymers（Lignin-g-PAA） with different grafting densities were synthesized via atom transfer radical polymerization（ATRP）， and then electrostatically complexed in situ with imidazolium-based poly（ionic liquid）（PCMVImTFSI） to prepare lignin-based polyelectrolyte membranes（Lignin-PILM） with gradient pore structures. The influence of grafting density of Lignin-g-PAA on the thermal stability， surface morphology， and pore size distribution of the membrane was investigated. Specifically， Lignin-PILM constructed by Lignin2-g-PAA₉ with moderate grafting density exhibited a gradient nano-pore structure and excellent thermal stability. Subsequently， the effect of Lignin-g-PAA copolymer content on the UV shielding performance of the membrane was explored. The study revealed that higher Lignin-g-PAA content resulted in superior UV shielding capability and visible light transmittance of the membrane.



Preparation of Aligned Stereocomplexed Poly（lactic acid） Nanofibrous Membranes for Long-term Electret and Efficient PM_0.3 Filtration

WANG Cunmin, JIANG Liang, LI Jiaqi, LI Xinyu, ZHANG Yifan, YUAN Hui, ZHANG Mingming, ZHU Jintuo, XU Huan, LEI Lei, HOU Chong, GUO Zhen, HE Xinjian

2024, 45(10):  20240210.  doi:10.7503/cjcu20240210

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The stereocomplexation between poly（L-lactide）（PLLA） and poly（D-lactide）（PDLA） chains was used to generate strong intermolecular interactions， which could be further enhanced by using high-voltage electric field and intensive mechanical stretching to prompt extreme alignment and refinement of poly（lactic acid）（PLA） nanofibers and the formation of electroactive phase（i.e.， β phase， stereoscopic complexation crystal）. Due to the aligned nanofiber morphology and excellent electroactivity， the dielectric constant and surface potential of aligned stereocomplexed PLA（AS-PLA） nanofibrous membranes were increased to 1.68 and 5.4 kV， respectively. Moreover， AS-PLA nanofibrous membranes showed excellent filtration performance and triboelectric performance. In particular， the PLLA/PDLA40 prepared with 40% PDLA addition achieved an ultrafine air particle（PM_0.3） removal efficiency of 90.51% and an air resistance of only 240.6 Pa at airflow capacity of 85 L/min， which was significantly superior to pure PLLA fibrous membrane（80.34%， 251.4 Pa）. In addition， even at high humidity（RH=70%） and high respiratory airflow capacity（85 L/min）， the triboelectric nanogenerator（TENG） based filter assembled with AS-PLA nanofibrous membrane as the triboelectric layer showed excellent PM_0.3 removal efficiency of 95.02%， far exceeding that of normal PLA filters（only 89.50%）. The increase of electroactivity significantly improved the initial polarization ability and triboelectric performance of the nanofibrous membranes， which could rely on the triboelectric effect to achieve charge regeneration while ensuring the sufficient of the initial charge. It ensures long-term filtration without sacrificing air resistance.