Core-shell BiVO4@PDA composite photocatalysts on cotton fabrics for highly efficient photodegradation under visible light

被引:40
|
作者
Ran, Jianhua [1 ]
Bi, Shuguang [1 ]
Jiang, Huiyu [1 ]
Telegin, Felix [1 ]
Bai, Xue [2 ]
Yang, Hongjun [2 ]
Cheng, Deshan [2 ]
Cai, Guangming [2 ]
Wang, Xin [3 ]
机构
[1] Wuhan Text Univ, Hubei Key Lab Biomass Fiber & Ecol Dyeing & Finis, Wuhan 430020, Hubei, Peoples R China
[2] Wuhan Text Univ, State Key Lab New Text Mat & Adv Proc Technol, Wuhan 430073, Hubei, Peoples R China
[3] RMIT Univ, Sch Fash & Text, Melbourne, Vic 3056, Australia
基金
中国国家自然科学基金;
关键词
Cotton fabric; Core-shell nanoparticle; BiVO4; PDA; Photocatalytic activity; DOPED BIVO4; PERFORMANCE; GRAPHENE; HETEROSTRUCTURE; HETEROJUNCTIONS; NANOPARTICLES; DEGRADATION; SUBSTRATE; AEROGEL; UV;
D O I
10.1007/s10570-019-02535-5
中图分类号
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号
0805 ; 080502 ; 0822 ;
摘要
Highly efficient and reusable photocatalysts that enable photodegradation of pollutants under visible light is the key in waste water treatment with impacts on environment and sustainable development. In this article, we report the preparation and application of a novel core-shell photocatalyst of bismuth vanadate@polydopamine (BiVO4@PDA). The optical absorption property and microstructure of the BiVO4@PDA particles were measured by ultraviolet-visible spectrophotoscopy (UV-Vis), photoluminescence (PL) spectroscopy and transmission electron microscope. The BiVO4@PDA can be attached to cotton fabrics by electrostatic assembly and molecular bonding. The morphology and structure of the cotton fabric@BiVO4@PDA were characterized by SEM, X-ray photoelectron spectroscopy and X-ray diffraction. The photocatalytic activity results show that the methylene blue (MB) can be completely degraded by BiVO4@PDA under visible light irradiation within 250min. Moreover, the mechanism for the MB photodegradation using the cotton fabric@BiVO4@PDA photocatalyst under visible light were investigated. With the novel core-shell structure, the as-developed BiVO4@PDA particles can be used as highly efficient photocatalysts for visible light driven photodegradation. The BiVO4@PDA particles can be attached to different substrates due to the excellent adhesive and bonding nature of PDA towards high-efficient photocatalysis. [GRAPHICS] .
引用
收藏
页码:6259 / 6273
页数:15
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