A facile solvothermal syntheses of NiFe layered double hydroxide-Bi2MoO6 heterostructure/reduced graphene oxide with efficient photodegradation for tetracycline

Mufan Sun; Zhongjing Chen; Yixuan Yin; Bingji Huang; Guangyu He; Haiqun Chen

doi:10.1016/j.envres.2021.112037

A facile solvothermal syntheses of NiFe layered double hydroxide-Bi₂MoO₆ heterostructure/reduced graphene oxide with efficient photodegradation for tetracycline

Environ Res. 2022 Mar;204(Pt B):112037. doi: 10.1016/j.envres.2021.112037. Epub 2021 Sep 25.

Authors

Mufan Sun¹, Zhongjing Chen¹, Yixuan Yin¹, Bingji Huang¹, Guangyu He², Haiqun Chen³

Affiliations

¹ Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, Jiangsu Province, China.
² Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, Jiangsu Province, China. Electronic address: hegy@cczu.edu.cn.
³ Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, 213164, Jiangsu Province, China. Electronic address: chenhq@cczu.edu.cn.

PMID: 34582802
DOI: 10.1016/j.envres.2021.112037

Abstract

A heterojunction of NiFe layered double hydroxide (NiFe LDH)-Bi₂MoO₆ (BMO) loaded on reduced graphene oxide (RGO) sheets was synthesized via an eco-friendly solvothermal reaction. The structural characterization shows that NiFe LDH-BMO heterojunctions are well-distributed on the surface of silk-like transparent RGO sheets. The modification of BMO by NiFe LDH and RGO greatly enhances the photocatalytic performance of BMO for degradation of tetracycline (TC) under visible light. The photocatalyst prepared with 3 wt% RGO shows the highest activity and cycle stability. TC can be completely removed in 80 min, which is about 8.7 times that pure BMO, and showing excellent reusability even after five cycles. The excellent enhancement of photocatalytic performance of NiFe LDH-BMO/RGO composite is attributed to the unique sheet-on-sheet hierarchical heterostructure combined with RGO sheets, facilitating the visible light absorption and photogenerated charge carriers separation.

Keywords: Bismuth molybdate; Graphene; Heterostructure; Photocatalytic degradation; Tetracycline.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bismuth
Catalysis
Graphite
Hydroxides*
Molybdenum
Photolysis
Tetracycline*

Substances

Bi(2)MoO(6)
Hydroxides
graphene oxide
Graphite
Molybdenum
Tetracycline
Bismuth