Synthesis and Photochroism of a Novel Organic-inorganic Nanocomposite Film Entrapping Tungstosilicate Acid

Abstract

Abstract: A novel photochromic organic-inorganic nanocomposite film was prepared through entrapping Keggin structure H₄SiW₁₂O₄₀ into MAAM/VTEOS/TEOS matrix by combining supramolecular self-assembly technology with sol-gel process. The composite film was characterized by IR, XRD and TG-DSC, and its photochromic behavior and mechanism were also studied and discussed. The transparent film changed from colorless to dark-blue under UV irradiation and was measured by UV-Vis and ESR spectra. The results indicate that [SiW₁₂O₄₀]^4- anions maintain Keggin structure in the composite film and interacted strongly with _NH₂ group of the matrix via hydrogen bond. After irradiation under UV light, a hydrogen atom is transferred to a [SiW₁₂O₄₀]^4- anion, and a free radical is formed at the same time. The bleaching process is closely related to the presence of O₂, and the experiments show that the composite film has excellent photochromic properties, with a short response and bleaching time and good reversibility.

Key words: Organic-inorganic composite, Self-assembly, Sol-gel method, Photochroism, Tungstosilicate acid

CLC Number:

O635

TrendMD:

HUANG Yan, PAN Qing-Yi, CHENG Zhi-Xuan, ZHANG Wen, XIA Wei. Synthesis and Photochroism of a Novel Organic-inorganic Nanocomposite Film Entrapping Tungstosilicate Acid[J]. Chem. J. Chinese Universities, 2005, 26(2): 204.

[1]	LI Lin, QI Fenglian, QIU Lili, MENG Zihui. Dynamic Amorphous Photonic Structure Patterns Assembled by Hexagonal Magnetic Nanosheets [J]. Chem. J. Chinese Universities, 2022, 43(8): 20220123.
[2]	WU Yushuai, SHANG Yingxu, JIANG Qiao, DING Baoquan. Research Progress of Controllable Self-assembled DNA Origami Structure as Drug Carrier [J]. Chem. J. Chinese Universities, 2022, 43(8): 20220179.
[3]	JIANG Xiaokang, ZHOU Qi, ZHOU Hengwei. Synthesis and Luminescence Properties of Gd₂ZnTiO₆∶Dy³⁺， Eu³⁺ Single Phase White Light-emitting Phosphors [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220029.
[4]	YU Bin, CHEN Xiaoyan, ZHAO Yue, CHEN Weichang, XIAO Xinyan, LIU Haiyang. Graphene Oxide-based Cobalt Porphyrin Composites for Electrocatalytic Hydrogen Evolution Reaction [J]. Chem. J. Chinese Universities, 2022, 43(2): 20210549.
[5]	LI Bo, MENG Yuxi, WANG Wenwen, ZANG Hongying. Synthesis and Proton Conductivity of Polynuclear Polyoxothiomolybdate Compound [J]. Chem. J. Chinese Universities, 2022, 43(1): 20210657.
[6]	DU Shunfu, WANG Wenjing, EL⁃SAYED El⁃Sayed M., SU Kongzhao, YUAN Daqiang, HONG Maochun. A Chemiluminescent Zirconocene Coordination Tetrahedron [J]. Chem. J. Chinese Universities, 2022, 43(1): 20210628.
[7]	XUE Jin, CAO Xiaowei, LIU Yifan, WANG Min. Preparation of Paper Hollow Gold Nanocage SERS Sensor and Its Rapid and Highly Sensitive Detection for miRNAs in Sputum of Patients with Non-small Cell Lung Cancer [J]. Chem. J. Chinese Universities, 2021, 42(8): 2393.
[8]	LI Yishan, GUO Liang, PENG Sifan, ZHANG Qingmao, ZHANG Yuhao, XU Shiqi. Cobalt Substitutions in Lanthanum Manganate Photocatalyst： First-principles and Visible-light Photocatalytic Ability Investigation [J]. Chem. J. Chinese Universities, 2021, 42(6): 1881.
[9]	HAN Yandong, HAN Mingyong, YANG Wensheng. Sol-gel Construction of Mesoporous Silica Nanomicrostructures [J]. Chem. J. Chinese Universities, 2021, 42(4): 965.
[10]	TANG Wentao, LI Shengkai, WANG Shen, CHEN Long, CHEN Zhuo. Laser-mediated Enrichment Based Surface Enhanced Raman Analysis [J]. Chem. J. Chinese Universities, 2021, 42(10): 3054.
[11]	ZHANG Juan, HU Xinyue, WANG Hongbo, LIAN Ying, LE Jinyu, YANG Zihao. Crystal-like Hydrogels Consisting of Parallel Hexahedrons Obtained from the Self-assembly ofβ⁃Cyclodextrin/perfluorononanoic Acid Inclusion Complexes [J]. Chem. J. Chinese Universities, 2021, 42(10): 3187.
[12]	HOU Chunxi, LI Yijia, WANG Tingting, LIU Shengda, YAN Tengfei, LIU Junqiu. Application of Elastin-like Polypeptides in Supramolecular Assembly ^† [J]. Chem. J. Chinese Universities, 2020, 41(6): 1163.
[13]	BAI Ruonan, LI Qing, QIAO Shanlin, ZHANG Chunhuan, ZHAO Yongsheng. Controlled Preparation and Optical Waveguide Property of 1,4-Dicarbazolidinylbenzene Microwires ^† [J]. Chem. J. Chinese Universities, 2020, 41(5): 967.
[14]	WANG Jun, WANG Tie. Recent Progress in Functional Nanomaterials Based on Self-assembly Technology ^† [J]. Chem. J. Chinese Universities, 2020, 41(3): 377.
[15]	LI Dong,SUN Yinghui,WANG Zhongshun,HUANG Jing,Lü Nan,JIANG Lin. Large-scale Multiplexed Surface Plasmonic Gold Nanostructures Based on Nanoimprint and Self-assembly ^† [J]. Chem. J. Chinese Universities, 2020, 41(2): 221.

Synthesis and Photochroism of a Novel Organic-inorganic Nanocomposite Film Entrapping Tungstosilicate Acid

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments