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Facile construction of Z-scheme g-C3N4/BiVO4 heterojunctions for boosting visible-light photocatalytic activity  ( SCI-EXPANDED收录)   被引量:16

文献类型:期刊文献

英文题名:Facile construction of Z-scheme g-C3N4/BiVO4 heterojunctions for boosting visible-light photocatalytic activity

作者:Xu, Xinhe[1];Zhang, Jiayan[1];Tao, Feifei[1,2];Dong, Yali[1];Wang, Linxia[1];Hong, Tianjie[1]

机构:[1]Shaoxing Univ, Dept Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China;[2]Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China

年份:2022

卷号:279

外文期刊名:MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS

收录:SCI-EXPANDED(收录号:WOS:000807504500001)、、WOS

基金:Acknowledgements This work was supported by National Natural Science Foundation of China (NSFC, grant Nos. 51372154 and 20901051) and Natural Science Foundation of Zhejiang Province of China (grant No. LY21B010005) .

语种:英文

外文关键词:g-C3N4/BiVO4 composite; Photocatalytic activity; Heterojunction

外文摘要:Photocatalytic technology is one of the effective methods to treat the azo dye wastewater that has posed a serious threat to human environment and health. Composed of graphitic carbon nitride (g-C3N4) nanosheets and BiVO4 hollow spheres, the g-C3N4/BiVO4 composites were successfully assembled by thermal treatment. The uniform BiVO4 hollow spheres were more evenly scattered on the layered structure of g-C3N4 nanosheets, inhibiting the aggregation of nanoparticles. The confirmed g-C3N4/BiVO4 heterojunctions facilitate the transfer and separation of charges. Compared with g-C3N4 nanosheets and BiVO4 hollow spheres, the optimized g-C3N4/BiVO4 composite exhibits the significantly enhanced photocatalytic performance, owing to the formation of the heterojunctions, high charge separation efficiency and strong redox ability. The Z-scheme mechanism over the composite has been proposed to reveal the pathway of separation and transfer of the photo-generated charges in the MO degradation. The g-C3N4/BiVO4 heterojunctions with hollow porous structures could effectively enhance the photocatalytic degradation of pollutants.

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