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BiVO4-Deposited MIL-101-NH2 for Efficient Photocatalytic Elimination of Cr(VI)
Huiwen Sun1, Qihang Dai1, Ju Liu1
1Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
Abstract:
In this study, a flower-like BiVO4/MIL-101-NH2 composite is synthesized by a facile and surfactant-free process. The -COO--Bi3+ ionic bond construction was conductive to enhance the interface affinity between BiVO4 and MIL-101-NH2. Due to the highly efficient light capture and sufficient electron traps induced by oxygen vacancies and the formation of a heterostructure, the improved separation and transportation rates of charge carriers are realized. In addition, the MIL-101-NH2/BiVO4 composite is favorable for Cr(VI) photocatalytic removal (91.2%). Moreover, FNBV-3 (Fe/Bi = 0.25) also exhibited an excellent reusability after five cycles.
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