三维网状Dy 3+∶YVO4/TiO2复合纤维的制备及光催化产氢性能

doi:10.7503/cjcu20190302

高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (11): 2348.doi: 10.7503/cjcu20190302

三维网状Dy ³⁺∶YVO₄/TiO₂复合纤维的制备及光催化产氢性能

孙大伟^1,²,李跃军²,曹铁平^2,^*(),赵艳辉²,杨殿凯²

^1. 吉林师范大学化学学院, 四平 136000
^2. 白城师范学院化学学院, 白城 137000

收稿日期:2019-05-27 出版日期:2019-11-10 发布日期:2019-09-05
通讯作者: 曹铁平 E-mail:bcctp2008@163.com
基金资助:
国家自然科学基金(21573003);国家级大学生创新创业训练计划项目资助(201810206003)

Preparation of Dy ³⁺-doped YVO₄/TiO₂ Composite Nanofibers with Three-dimensional Net-like Structure and Enhanced Photocatalytic Activity for Hydrogen Evolution ^†

SUN Dawei^1,²,LI Yuejun²,CAO Tieping^2,^*(),ZHAO Yanhui²,YANG Diankai²

^1. College of Chemistry, Jilin Normal University, Siping 136000, China
^2. College of Chemistry, Baicheng Normal University, Baicheng 137000, China

Received:2019-05-27 Online:2019-11-10 Published:2019-09-05
Contact: CAO Tieping E-mail:bcctp2008@163.com
Supported by:
? Supported by the National Natural Science Foundation of China(21573003);The National College Students’ Innovative Entrepreneurship Training Program, China(201810206003)

摘要/Abstract

摘要：

以电纺TiO₂纳米纤维为基质, 柠檬酸为软模板, 采用一步水热法制备了具有三维立体网状结构的稀土Dy ³⁺掺杂YVO₄/TiO₂复合纤维. 通过X射线衍射、扫描电子显微镜、 X射线光电子能谱、 N₂吸附-脱附、紫外-可见漫反射光谱及荧光光谱等手段对材料的组成、表面形貌和性能进行表征, 以光分解水产氢实验考察其光催化活性. 结果表明, Dy ³⁺∶YVO₄纳米枝与TiO₂纳米纤维相互交联构筑的纳米纤维网具有大比表面积, 可提供更多活性位点, 改善了多相光催化反应的传递过程; 稀土Dy ³⁺掺杂的YVO₄与TiO₂复合形成异质结相互促进, 在拓宽光谱响应范围、提高太阳光利用率的同时使光生电子-空穴对得到较好分离, 从而提高了样品的光催化活性. 模拟太阳光照射下, Dy ³⁺∶YVO₄/TiO₂复合纤维光催化产氢速率达到8.63 mmol· h ^-1·g ^-1, 是纯TiO₂纳米纤维的10倍.

关键词: Dy ³⁺掺杂YVO₄/TiO₂, 复合纤维, 一步水热法, 光催化产氢

Abstract:

By employing electrospun TiO₂ nanofibers as substrate and citric acid as soft template, rare earth Dy ³⁺-doped YVO₄/TiO₂ composite nanofibers with net-like structure were prepared via one-step hydrothermal method. The composition, surface morphology and properties were characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, N₂ adsorption-desorption, ultraviolet-visible diffuse reflectance spectrum and fluorescence spectrum. The photocatalytic activity of Dy ³⁺-doped YVO₄/TiO₂ compo-site nanofibers was investigated via production of hydrogen from water splitting. The results show that cross-linking and assembly of Dy ³⁺∶YVO₄ nano-branch and TiO₂ nanofibers allows a higher surface area. More active sites could be provided and the mass transfer process during heterogeneous photocatalytic reaction was improved. Moreover, the formation of Dy ³⁺-doped YVO₄/TiO₂ heterojunction could widen the spectral response and improve the utilization of solar light. Meanwhile, the separation of photogenerated electron-hole pairs can be achieved. Thus, the photocatalytic activity towards hydrogen production was improved. The photocatalytic production rate of hydrogen reached 8.63 mmol·h ^-1·g ^-1 under sunlight irradiation, which was 10 times that of pure TiO₂ nanofibers.

Key words: Dy ³⁺-doped YVO₄/TiO₂, Composite fibers, One-step hydrothermal method, Photocatalytic hydrogen production

中图分类号:

O643

TrendMD:

孙大伟,李跃军,曹铁平,赵艳辉,杨殿凯. 三维网状Dy ³⁺∶YVO₄/TiO₂复合纤维的制备及光催化产氢性能. 高等学校化学学报, 2019, 40(11): 2348.

SUN Dawei,LI Yuejun,CAO Tieping,ZHAO Yanhui,YANG Diankai. Preparation of Dy ³⁺-doped YVO₄/TiO₂ Composite Nanofibers with Three-dimensional Net-like Structure and Enhanced Photocatalytic Activity for Hydrogen Evolution ^†. Chem. J. Chinese Universities, 2019, 40(11): 2348.

图/表 10

Fig.1 SEM images of different samples(A—E) and EDS spectrum of sample DYV/TO3(F) (A) TiO2; (B) DYV/TO1; (C) DYV/TO2; (D) DYV/TO3; (E) DYV/TO4.

Fig.2 XRD patterns of different samples

Fig.3 XPS spectra of the DYV/TO3 sample (A) Survey scan; (B) Ti2p; (C) O1s; (D) Dy3d.

Fig.4 N2 adsorption-desorption isotherm of different samples

Table 1 BET specific surface area, pore size and pore volume of different samples

Sample	S_BET/(m²·g^-1)	Average pore diameter/nm	Total pore volume/(cm³·g^-1)
TiO₂	29.28	12.46	0.17
DYV/TO1	78.67	20.48	0.16
DYV/TO2	82.43	23.64	0.20
DYV/TO3	93.66	28.53	0.22
DYV/TO4	90.32	27.53	0.21

Fig.5 UV-Vis DRS spectra of different samples

Fig.6 PL spectra of different samples

Fig.7 Photocurrent of TiO2 nanofibers and different composite fibers

Fig.8 Photocatalytic hydrogen production rate of the different samples under simulated sunlight(A) and visible light(B) irradiation

Fig.9 Hydrogen production cycle stability of DYV/TO3 composite fibers

参考文献 20

[1]	Fujishima A., Honda K ., Nature, 1972,238(5358), 37— 38
[2]	Liu Q. J., Lin B. Z., Li P. P., Gao B. F., Chen Y. L., . Chem. J. Chinese Universities, 2017,38(1), 94— 100
	( 刘琼君, 林碧洲, 李培培, 高碧芬, 陈亦琳 . 高等学校化学学报, 2017,38(1), 94— 100)
[3]	Cai Z. Y., Xiong Z. G., Lu X. M., Teng J. H., . J. Mater. Chem. A, 2014,2(2), 545— 552
[4]	Gao X. F., Li H. B., Sun W. T., Chen Q., Tang F. Q., Peng L. M., J. Phys. Chem. C, 2009,113(16), 7531— 7535
[5]	Yang L. X., Luo S. L., Liu R. H., Cai Q. Y., Xiao Y., Liu S. H., Su F., Wen L. F., J. Phys. Chem. C, 2010,114(11), 4783— 4789
[6]	Schneider J., Matsuoka M., Takeuchi M., Zhang J. L., Horiuchi Y., Anpo M., Bahnemann D. W., Chem. Rev., 2014,114(19), 9919— 9986
[7]	Sun D. H., Liu H. R., Li R. Z., Chem.J. Chinese Universities, 2016,37(11), 2050— 2059
	( 孙代红, 刘华荣, 李睿哲 . 高等学校化学学报, 2016,37(11), 2050— 2059)
[8]	Odling G., Robertson N ., ChemPhysChem, 2016,17(18), 2872— 2880
[9]	Sun L. D., Zhang Y. X., Zhang J., Yan C. H., Liao C. S., Lu Y. Q., Solid State Commun., 2002,124(1/2), 35— 38
[10]	Wang H., Meng Y. Q., Yan H., Chem. Commun., 2004, ( 4), 553— 555
[11]	Yu M., Lin J., Wang Z., Fu J., Wang S., Zhang H. J., Han Y. C., Chem. Mater., 2002,14(5), 2224— 2231
[12]	Xu H. Y., Wang H., Yan H., J. Hazard. Mater., 2007,144, 82— 85
[13]	He Y. M., Wu Y., Guo H., Sheng T. L., Wu X. T., J. Hazard. Mater., 2009,1699(1—3), 855— 860
[14]	Fang W. J., Jiang Z., Yu L., Liu H., Shangguan W. F., Terashima C., Fujishima A., J. Catal., 2017,352, 155— 159
[15]	Ren W. J., Ai Z. H., Jia F. L., Zhang L. Z., Fan X. X., Zou Z. G., Appl. Catal. B: Environ., 2007,69(3/4), 138— 144
[16]	Xie F. X., Mao X. M., Fan C. M., Wang Y. W., Mater. Sci. Semicond Process, 2014,27, 380— 389
[17]	Kumar B. V., Velchuri R., Devi V. R., Sreedhar B., Prasad G., Prakash D. P., Kanagaraj M., Arumugam S., Vithal M., J. Solid State Chem., 2011,184(2), 264— 272
[18]	Gao Y., Lin J. Y., Zhang Q. Z., Yu H., Ding F., Xu B. T., Sun Y. G., Xu Z. H., Appl.Catal. B: Environ., 2018,224, 586— 593
[19]	Ahsaine H. A., Eljaouhan A., Slassi A., Ezahri M., Benlhachemi A., Bakiz B., Guinneton F., Gavarri J. R., RSC Adv., 2016,6(103), 101105— 101114
[20]	Zhang M. Y., Shao C. L., Mu J. B., Zhang Z. Y., Guo Z. C., Zhang P., Liu Y. C., CrystEngComm, 2012,4(2), 605— 612

三维网状Dy ³⁺∶YVO₄/TiO₂复合纤维的制备及光催化产氢性能

Preparation of Dy ³⁺-doped YVO₄/TiO₂ Composite Nanofibers with Three-dimensional Net-like Structure and Enhanced Photocatalytic Activity for Hydrogen Evolution ^†

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 10

参考文献 20

相关文章 15

编辑推荐

Metrics

本文评价

[1]	姜珊, 申倩倩, 李琦, 贾虎生, 薛晋波. Pd增强缺陷态TiO₂纳米管阵列的光催化产氢性能[J]. 高等学校化学学报, 2022, 43(10): 20220206.
[2]	徐安琪, 李彬, 杜芳林. 有序介孔TiO₂的合成及光解水产氢应用[J]. 高等学校化学学报, 2021, 42(4): 978.
[3]	王非凡, 王松博, 姚柯奕, 张蕾, 杜威, 程鹏高, 张建平, 唐娜. 量子点自修饰TiO₂p-n同质结的构建及光催化性能[J]. 高等学校化学学报, 2020, 41(7): 1615.
[4]	曹锰, 柳阳, 张尚玺, 王振希, 徐胜. 壳聚糖钴配合物的合成及光催化产氢性能[J]. 高等学校化学学报, 2020, 41(4): 735.
[5]	赵宇轩, 陈艳君, 潘顾鑫, 王畅, 彭振博, 孙宗旭, 梁永日, 师奇松. 静电纺丝制备Tb-PEG+Eu-PEG/PANI/PAN荧光导电相变三功能复合纤维[J]. 高等学校化学学报, 2019, 40(4): 824.
[6]	吴静, 郭静, 张森, 宫玉梅, 张鸿. 盐浓度与海藻酸钠/磷虾蛋白复合体系性能的相关性[J]. 高等学校化学学报, 2017, 38(9): 1701.
[7]	付冉冉, 纪秀杰, 刘超, 任燕飞, 汪港, 程博闻. 离子液体中纤维素/纳米层状ZnO复合抗菌纤维的制备及性能[J]. 高等学校化学学报, 2017, 38(12): 2344.
[8]	向军, 张雄辉, 叶芹, 李佳乐, 沈湘黔. Fe-Ni/C复合纳米纤维的原位制备与微波吸收性能[J]. 高等学校化学学报, 2014, 35(7): 1379.
[9]	曲阳, 周卫, 任志宇, 潘凯, 姜乐, 付宏刚. CdTiO₃纳米棒的可控制备及光催化产氢性能[J]. 高等学校化学学报, 2014, 35(5): 995.
[10]	李婷婷, 刘策, 张志明, 安立宝, 杨翠环. 磷钼酸/聚苯乙烯/聚乙烯醇电纺纤维膜的制备及性能[J]. 高等学校化学学报, 2014, 35(2): 389.
[11]	许蕾蕾, 李灿, 施伟东, 官建国. NaTaO₃:Cu/W的结构和可见光催化制氢性能[J]. 高等学校化学学报, 2012, 33(11): 2537.
[12]	李跃军, 曹铁平, 邵长路, 王长华. WO₃/TiO₂ 复合纤维的制备及储能光催化性能[J]. 高等学校化学学报, 2012, 33(07): 1552.
[13]	侯远董相廷王进贤刘桂霞李乐慧. YF3:Eu3+纳米纤维/高分子复合纳米纤维的制备与表征[J]. 高等学校化学学报, 2011, 32(2): 225.
[14]	赵瑾, 赵玉平, 张伟, 袁晓燕. PLGA/明胶共混体系的静电纺丝研究[J]. 高等学校化学学报, 2009, 30(2): 391.
[15]	佟永纯,胡常林,王清云,白洁,雷自强,苏碧桃 . 界面聚合法制备PANI/TiO₂纳米复合纤维材料[J]. 高等学校化学学报, 2008, 29(2): 415.