Issue 10, 2019
From the journal:

RSC Advances

Green synthesis of a AgCl@AgI nanocomposite using Laminaria japonica extract and its application as a visible-light-driven photocatalyst†

Zhongyu Ruan,‡a   Guihong Liu,‡a   Jinxia Shu,a   Chunguang Ren*b  and  Zhonghua Wang ORCID logo *a  

* Corresponding authors

a Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan 637002, P. R. China
E-mail: zhwangs@163.com

b Yantai Institute of Materia Medica, 39 Keji Road, Gaoxin District, Yantai 264000, Shandong, P. R. China
E-mail: cgren@simmyt.ac.cn

Abstract

A AgCl@AgI composite photocatalyst was greenly synthesized using Laminaria japonica extract as the source of halogen anions, and characterized by XRD, SEM, TEM and XPS techniques. The photocatalytic activity and photochemical stability of the AgCl@AgI were investigated by the photodegradation of methyl orange (MO) azo dye under visible light illumination (λ > 420 nm). The AgCl@AgI composite showed good photochemical stability and much higher photocatalytic activity than that of single AgCl and AgI. Mechanism studies showed that the main active species are photoinduced holes (h+) and superoxide anion radicals (·O2−). Finally, a plausible mechanism for the separation of photoinduced charge carriers was proposed.

Graphical abstract: Green synthesis of a AgCl@AgI nanocomposite using Laminaria japonica extract and its application as a visible-light-driven photocatalyst

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Article information

DOI
https://doi.org/10.1039/C8RA09263J
Article type
Paper
Submitted
09 Nov 2018
Accepted
04 Feb 2019
First published
18 Feb 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 5858-5864

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Green synthesis of a AgCl@AgI nanocomposite using Laminaria japonica extract and its application as a visible-light-driven photocatalyst

Z. Ruan, G. Liu, J. Shu, C. Ren and Z. Wang, RSC Adv., 2019, 9, 5858 DOI: 10.1039/C8RA09263J

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