Page 144 - 《精细化工》2023年第8期

第 40 卷第 8 期 精 细 化 工 Vol.40, No.8
20 23 年 8 月 FINE CHEMICALS Aug. 2023

功能材料
2D WO /Ag:ZnIn S Z 型异质结复合物
2 4
3
的构筑及可见光催化性能

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1*
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顾 登 1,2 ，明 涛 ，高 雨 ，丁 茯 ，徐振和 ，孙亚光
（1. 大连大学 环境与化学工程学院，辽宁 大连 116622；2. 沈阳化工大学 无机分子基辽宁省重点实验
室，辽宁 沈阳 110142）
摘要：通过水热法原位构筑了 2D WO 3 /Ag:ZnIn 2 S 4 Z 型异质结复合物，采用 XRD、XPS、UV-Vis DRS、N 2 吸附-
脱附、PL 对其进行了表征和光电性能测试。采用可见光照射评价了 2D WO 3 /Ag:ZnIn 2 S 4 Z 型异质结复合物光解
水制氢和光降解甲基橙（MO）的催化性能。结果表明，在 2D WO 3 /Ag:ZnIn 2 S 4 Z 型异质结复合物中，随着
Ag:ZnIn 2 S 4 质量分数的增加，光催化性能呈先增加后减小的趋势。当 Ag:ZnIn 2 S 4 的质量分数为 35.0%时，制得
的 WO 3 /35.0% Ag:ZnIn 2 S 4 的比表面积、孔体积和孔径分别约为 WO 3 纳米片的 2.4、2.6 和 1.0 倍，表现出最佳光
–1
催化性能，制氢速率〔158.93 µmol/(g·h)〕与 MO 降解速率（0.18 min ）均优于 WO 3 纳米片，这主要归因于原
位负载 Ag:ZnIn 2 S 4 形成了独特的 Z 型异质结结构，延长了光生电荷的传输途径，阻碍了光生电荷的复合，从而
增强了光生载流子的氧化还原能力。
关键词：催化剂；复合物；制氢；降解；Z 型异质结；WO 3 ；功能材料
中图分类号：O643.36；O644.1 文献标识码：A 文章编号：1003-5214 (2023) 08-1758-09

Construction of Z-scheme heterojunction based on 2D WO 3/Ag:
ZnIn 2S 4 composites for visible light catalysis

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GU Deng , MING Tao , GAO Yu , DING Fu , XU Zhenhe , SUN Yaguang
（1. College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, Liaoning, China; 2. Key
Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province, Shenyang University of Chemical Technology,
Shenyang 110142, Liaoning, China）
Abstract: Two-dimensional (2D) WO 3/Ag:ZnIn 2S 4 Z-scheme heterojunction composites were in situ
constructed via hydrothermal method, characterized by XRD, XPS, UV-Vis DRS, N 2 adsorption-desorption,
and PL, and tested for analysis of photoelectric properties. Moreover, the performance of 2D
WO 3/Ag:ZnIn 2S 4 Z-scheme heterojunction composites for hydrogen production and photodegradation of
Methyl Orange (MO) under visible light irradiation were assessed. The results showed that the
photocatalytic performances displayed a trend of first increase and then decrease as the mass fraction of
Ag:ZnIn 2S 4 in 2D WO 3/Ag:ZnIn 2S 4 Z-scheme heterojunction composites increased. When the mass fraction
of Ag:ZnIn 2S 4 was 35.0%, the composite exhibited a specific surface area, pore volume and pore size that
were about 2.4, 2.6 and 1.0 times of those of WO 3 nanosheets, respectively, and the best photocatalytic
performances with a hydrogen production rate of 158.93 µmol/(g·h) and degradation rate of MO of 0.18
–1
min , better than those of WO 3 nanosheets. The excellent photocatalytic performances were mainly
attributed to the formation of a unique Z-scheme heterojunction structure of Ag:ZnIn 2S 4 loaded in situ,
which prolonged the photogenerated charge transport pathway and hindered the photogenerated charge
recombination. Thus, the oxidation-reduction capacity of photogenerated charge carriers was enhanced.

收稿日期：2022-10-08; 定用日期：2022-12-26; DOI: 10.13550/j.jxhg.202200916
基金项目：国家自然科学基金（51402198）；辽宁省“兴辽英才计划”项目（XLYC2007166）
作者简介：顾 登（1995—），男，硕士生，E-mail：1550119040@qq.com。联系人：徐振和（1981—），男，教授，E-mail：xuzh056@163.com；
孙亚光（1972—），男，教授，E-mail：sunyaguang@syuct.edu.cn。