Hierarchical Sb2S3/ZnIn2S4 core-shell heterostructure for highly efficient photocatalytic hydrogen production and pollutant degradation

Yan Xiao; Hao Wang; Yinhua Jiang; Wenli Zhang; Jianming Zhang; Xiangyang Wu; Zhanchao Liu; Wei Deng

doi:10.1016/j.jcis.2022.04.137

Hierarchical Sb₂S₃/ZnIn₂S₄ core-shell heterostructure for highly efficient photocatalytic hydrogen production and pollutant degradation

J Colloid Interface Sci. 2022 Oct:623:109-123. doi: 10.1016/j.jcis.2022.04.137. Epub 2022 Apr 29.

Authors

Yan Xiao¹, Hao Wang², Yinhua Jiang³, Wenli Zhang², Jianming Zhang², Xiangyang Wu⁴, Zhanchao Liu⁵, Wei Deng⁶

Affiliations

¹ Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China; Foshan (Southern China) Institute for New Materials, Foshan, Guangdong 528200, China.
² School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
³ School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: jyhua@ujs.edu.cn.
⁴ Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: wuxy@ujs.edu.cn.
⁵ School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, PR China.
⁶ Foshan (Southern China) Institute for New Materials, Foshan, Guangdong 528200, China.

PMID: 35569220
DOI: 10.1016/j.jcis.2022.04.137

Abstract

In this work, a novel hierarchical 1D/2D core/shell Sb₂S₃-ZnIn₂S₄ (SB-ZIS) heterostructure with highly efficient photocatalytic activities for both hydrogen production from water and organic pollutant degradation was designed and fabricated via a simple one-step hydrothermal method. The as-prepared SB-ZIS heterostructure, where ZnIn₂S₄ nanosheets uniformly grew onto Sb₂S₃ nanorod to form a tight and large intimate contacted interface, was conducive to improve the absorption capacity of light, increase the surface area, shorten the distance of electronic transmission channels and accelerate the separation and migration of photogenerated carriers. As a result, the presented SB-ZIS composites demonstrated significantly enhanced photocatalytic performances for H₂ generation and Tetracycline Hydrochloride (TCH) photodegradation. The photocatalytic H₂ production rate of optimal SB-ZIS-2 sample (1685.14 μmol·g^-1·h^-1) was about 12.24 times as large as that of pure ZnIn₂S₄ (137.63 μmol·g^-1·h^-1). The apparent quantum efficiency (AQE) at 420 nm was up to 3.8%. In addition, the highest rate constant for TCH removal (0.514 h^-1) was 20.3 and 2.89 times larger than those of pure Sb₂S₃ and Znln₂S₄, respectively. The possible reaction routes of TCH and the photocatalytic reaction mechanism of SB-ZIS sample were also discussed in detail. This work will provide some useful information for the development of dual-functional Sb₂S₃-based type I core-shell heterostructure with an efficient photocatalytic activity for solving environmental pollution and producing clean hydrogen energy.

Keywords: Dual-functional; Sb(2)S(3) nanorod; ZnIn(2)S(4) nanosheet; hierarchical 1D/2D heterostructure.

MeSH terms

Environmental Pollutants*
Hydrogen / chemistry
Nanotubes*
Photolysis
Tetracycline / chemistry

Substances

Environmental Pollutants
Hydrogen
Tetracycline