Inorganic Chemicals Industry ›› 2021, Vol. 53 ›› Issue (11): 114-121.doi: 10.19964/j.issn.1006-4990.2021-0091

• Catalytic Materials • Previous Articles     Next Articles

Study on crystal facet regulation of bismuth vanadate and its degradation properties of tetracycline antibiotics

SHI Suqi(),ZHANG Shouchen(),ZHANG Dijia,NING Guiling,YE Junwei()   

  1. State Key Laboratory of Fine Chemicals,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China
  • Received:2021-02-08 Online:2021-11-10 Published:2021-11-15
  • Contact: ZHANG Shouchen,YE Junwei E-mail:dllgssq@mail.dlut.edu.cn;zhangsc62@163.com;junweiye@dlut.edu.cn

Abstract:

The monoclinic scheelite bismuth vanadate(m-BiVO4) catalytic material was synthesized by a solvothermal method and characterized by XRD,BET,SEM,TEM,etc.It was found that the morphology and crystal facet of BiVO4 could be con-trolled by the pH value of the reaction solution,and m-BiVO4 with preferentially exposed(010) facet(BVO-010) was pre-pared at pH=7.With chlortetracycline hydrochloride(CTC-HCl),oxytetracycline(OTC),tetracycline(TC) and tetracycline hydrochloride(TCN) solutions as target pollutants,the degradation performance of the samples was evaluated.It was disclosed that compared to m-BiVO4 that mainly exposed the thermodynamically more stable(-121) facets(BVO-121),BVO-010 ex-hibited more outstanding photocatalytic performance,and the degradation rates of CTC-HCl,OTC,TC,and TCN were 77.9%,79.2%,63.6%,and 73.9%,respectively after 150 min illumination,which was expected to treat wastewater containing antibiotic drugs.

Key words: BiVO4, crystal facet regulation, photocatalysis, tetracycline antibiotics

CLC Number: