期刊
CELLULOSE
卷 26, 期 12, 页码 7437-7450出版社
SPRINGER
DOI: 10.1007/s10570-019-02621-8
关键词
Ag; AgCl; ZIF-8; TiO2 composite; Cotton fabric; Photocatalytic degradation; Methylene blue
资金
- Fundamental Research Funds for the Central Universities [YJ201823]
In this work, a photocatalyst Ag/AgCl/ZIF-8/TiO2 was facilely assembled on the surface of cotton fabrics via a simple method to fabricate a visible-light photocatalyst composite. The resultant cotton fabric was comprehensively characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and UV-vis diffuse reflection spectroscopy. The results showed that the Ag/AgCl/ZIF-8/TiO2 aggregations have successfully assembled on the surface of cotton fabric. Subsequently, Ag/AgCl/ZIF-8/TiO2 coated cotton fabric was employed as a visible-light photocatalytic material for degradation of organic dyes using methylene blue (MB) as a model. Owing to the synergistic effect of the Ag/AgCl/ZIF-8/TiO2 composite, the functional cotton fabric presented highly efficient photocatalytic degradation performance towards MB, the degradation of MB by Ag/AgCl/ZIF-8/TiO2 coated cotton fabric can reach to 98.5% within 105min under visible light irradiation. Moreover, the first-order kinetic constant of photocatalytic degradation was 0.0332min(-1). Additionally, Ag/AgCl/ZIF-8/TiO2 coated cotton fabric exhibited acceptable cycle stability. The photocatalytic degradation capacity of MB still can maintain approximately 85% after three cycles. Therefore, Ag/AgCl/ZIF-8/TiO2 coated cotton fabric can be viewed as a good material for dye wastewater treatment due to its good photocatalytic activity and acceptable cycle ability. [GRAPHICS] .
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