Issue 1, 2022

Facile synthesis of novel NH2-MIL-53(Fe)/AgSCN heterojunction composites as a highly efficient photocatalyst for ciprofloxacin degradation and H2 production under visible-light irradiation

Abstract

With the aim of solving the increasingly serious problem of environmental pollution and the energy crisis, in this work a novel NH2-MIL-53(Fe)/AgSCN (NMFA) composite photocatalyst was successfully prepared through a one-step chemical precipitation method. The prepared composites demonstrate an excellent photocatalytic performance for ciprofloxacin (CIP) and rhodamine B (RhB) degradation under visible-light irradiation. Within 60 min, the degradation rate for CIP and RhB reached 90% and 100%, respectively, which was 1.84/3.33 times and 1.79/2.04 times greater than that of the single NH2-MIL-53(Fe) and AgSCN samples. Furthermore, the H2 production rate of the NMFA-5 composite was 4742 μmol g−1 h−1, which was 5.25 and 17.37 times greater than that of the pure samples. Owing to the combination of NH2-MIL-53(Fe) and AgSCN, the separation and transmission efficiency of the photon-generated carriers in the composites was improved, which was demonstrated using optical characterization and a series of electrochemical characterization techniques. In addition, a possible mechanism for the excellent photocatalytic performance of the NMFA composites is discussed. The work in this paper may provide a technical reference for the application of silver modified metal organic frameworks (MOFs)-based composite photocatalysts for the treatment of environmental remediation.

Graphical abstract: Facile synthesis of novel NH2-MIL-53(Fe)/AgSCN heterojunction composites as a highly efficient photocatalyst for ciprofloxacin degradation and H2 production under visible-light irradiation

Associated articles

Article information

Article type
Paper
Submitted
18 aug 2021
Accepted
19 okt 2021
First published
19 okt 2021

React. Chem. Eng., 2022,7, 84-100

Facile synthesis of novel NH2-MIL-53(Fe)/AgSCN heterojunction composites as a highly efficient photocatalyst for ciprofloxacin degradation and H2 production under visible-light irradiation

J. Yi, X. Wu, H. Wu, J. Guo, K. Wu and L. Zhang, React. Chem. Eng., 2022, 7, 84 DOI: 10.1039/D1RE00349F

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