Fabrication and photocatalyic performance of Bi2MoO6 modified TiO2 nanorod array photocatalyst

被引：0
|
作者：
Zhou X. [1 ]
Hu Z. [1 ]
Ren Y. [1 ]
Xie L. [1 ]
机构：
[1] School of Electronic and Information Engineering, Hubei University of Science and Technology, Hubei, Xianning
来源：
Fangzhi Xuebao/Journal of Textile Research | 2022年 / 43卷 / 10期
关键词：
photo-degradation mechanism; photocatalytic biodegradation; printing and dyeing wastewater treatment; solvothermal method; visible light catalyst;
D O I：
10.13475/j.fzxb.20220408509
中图分类号：
学科分类号：
摘要：
In order to obtain a recyclable photocatalyst for efficient degradation of organic pollutants under visible light, TiO2 nanorod arrays were modified with Bi2MoO6 nanosheets by hydrothermal solvothermal two-step method to obtain Bi2MoO6/TiO2 composite. The morphology, structure, chemical element composition and optical properties of Bi2MoO6/TiO2 photocatalyst were analyzed, and the photoelectrochemical and photocatalytic properties of Bi2MoO6/TiO2 photocatalyst were tested with the help of electrochemical workstation in order to analyze the mechanism of enhanced photocatalytic activity. The results show that modification of TiO2 nanorod arrays by Bi2MoO6 with narrow gap broadens the spectral response range, promotes the effective separation and transfer of photogenerated carriers, and obtains significantly enhanced photocatalytic degradation efficiency of methylene blue. The energy band structure diagram shows that type II heterojunction is formed between TiO2 and Bi2MoO6, which promotes the separation and transfer of photogenerated electron holes. The synergistic effect between type II band structure of Bi2MoO6/TiO2 and the extended absorption of visible light is the internal mechanism for the improvement of photocatalytic properties. © 2022 China Textile Engineering Society. All rights reserved.
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页码：97 / 105
页数：8
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  • [1] SHI Minhui, LI Bingrui, WANG Ting, Et al., Mechanism and performance of TiO<sub>2</sub> composite photocatalysts for photo-degradation of methyl-orange in highly saline wastesater, Journal of Textile Research, 42, 12, pp. 103-110, (2021)
  • [2] WU Haipei, GAO Xiaohong, FANG Jing, Et al., Preparation and photocatalytic degradation decoloring of TiO<sub>2</sub>/reduced graphene oxide composites, Journal of Textile Research, 39, 12, pp. 78-83, (2018)
  • [3] YADAV H M, KIM J S, PAWAR S H., Developments in photocatalytic antibacterial activity of nano TiO<sub>2</sub>: a review, Korean Journal of Chemical Engineering, 33, pp. 1989-1998, (2016)
  • [4] GRABOWSKA E, RESZCZY N J, ZALESKA A., Mechanism of phenol photodegradation in the presence of pure and modified-TiO<sub>2</sub>: a review, Water Research, 46, pp. 5453-5471, (2012)
  • [5] MOHAMED M A, JAFAR J, ZAIN M F M, Et al., Concurrent growth, structural and photocatalytic properties of hybridized C, N co-doped TiO<sub>2</sub> mixed phase over g-C<sub>3</sub>N<sub>4</sub> nanostructured, Scripta Materialia, 142, pp. 143-147, (2018)
  • [6] SABER N B, MEZNI A, ALROOQI A, Et al., Fabrication of efficient Au @ TiO<sub>2</sub>/rGO heterojunction nanocomposite: boosted photocatalytic activity under ultraviolet and visible light irradiation, Journal of Materials Research and Technology, 12, pp. 2238-2246, (2021)
  • [7] ISMAEL M., A review and recent advances in solar-hydrogen energy conversion based on photocatalytic water splitting over doped-TiO<sub>2</sub> nanoparticles, Solar Energy, 211, pp. 522-546, (2020)
  • [8] FU Y, MAO Z P, ZHOU D, Et al., Fabrication of Ni-doped PbTiO<sub>3</sub>-coated TiO<sub>2</sub> nanorod arrays for improved photoelectrochemical performance, Journal of Nanomaterials, (2019)
  • [9] YU H, JIANG L, WANG H, Et al., Photocatalysis: Modulation of Bi<sub>2</sub> MoO<sub>6</sub> -based materials for photocatalytic water splitting and environmental application: a critical review [J], Small, (2019)
  • [10] PENG Y, LIU Q, ZHANG J, Et al., Enhanced visible-light-driven photocatalytic activity by 0D/2D phase heterojunction of quantum dots/nanosheets on bismuth molybdates, Journal of Physical Chemistry C, 122, pp. 3738-3747, (2018)
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