MoS<sub>2</sub>/TiO<sub>2</sub>复合催化剂的制备及其在紫外光下的光催化制氢活性

引用本文: 张驰, 吴志娇, 刘建军, 朴玲钰. MoS₂/TiO₂复合催化剂的制备及其在紫外光下的光催化制氢活性[J]. 物理化学学报, 2017, 33(7): 1492-1498. doi: 10.3866/PKU.WHXB201704141 shu

Citation: ZHANG Chi, WU Zhi-Jiao, LIU Jian-Jun, PIAO Ling-Yu. Preparation of MoS₂/TiO₂ Composite Catalyst and Its Photocatalytic Hydrogen Production Activity under UV Irradiation[J]. Acta Physico-Chimica Sinica, 2017, 33(7): 1492-1498. doi: 10.3866/PKU.WHXB201704141 shu

MoS₂/TiO₂复合催化剂的制备及其在紫外光下的光催化制氢活性

1.
北京化工大学化工资源有效利用国家重点实验室, 北京 100029;
2.
中科院标准与检测重点实验室, 中科院纳米科学卓越创新中心, 国家纳米科学中心, 北京 100190
基金项目:
科技部重点研发计划项目（2016YFA0200900，2016YFF0203803）资助

摘要: 为了研究复合光催化剂在光催化中的制氢效率，采用水热法制备了MoS₂纳米片，然后通过水热法在MoS₂纳米片上负载了TiO₂纳米颗粒，形成了MoS₂/TiO₂异质结复合催化剂。采用冷场发射扫描电子显微镜（FE-SEM）、透射电子显微镜（TEM）、X射线衍射（XRD）、紫外-可见吸收光谱（UV-Vis）、拉曼光谱（Raman），X射线光电子能谱（XPS）对材料的结构和光学性能表征并进行分析。通过光催化制氢测试对光催化剂进行评价，实验结果表明，在波长为365 nm的紫外光照射下，最高光催化制氢速率为1004 μmol·h^-1·g^-1，对应的催化剂的MoS₂含量为30%，其催化速率远大于单一的MoS₂和TiO₂，表明MoS₂/TiO₂复合催化剂在紫外光照下能显著提高光催化产氢性能。基于MoS₂/TiO₂复合光催化剂优越的光催化产氢性能，本文对复合光催化剂的产氢机理做了研究和分析。

关键词:

English

Preparation of MoS₂/TiO₂ Composite Catalyst and Its Photocatalytic Hydrogen Production Activity under UV Irradiation

1.
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China;
2.
CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China
Received Date: 16 January 2017
Revised Date: 11 April 2017
Available Online: 14 April 2017
Fund Project:
The project was supported by the Ministry of Science and Technology of China (2016YFA0200900, 2016YFF0203803).

Abstract: To study the activity of a composite photocatalyst for photocatalytic hydrogen production, we prepared and loaded MoS₂ nanosheets with TiO₂ nanoparticles using a hydrothermal method, thus forming a MoS₂/TiO₂ heterojunction composite catalyst. The structural and optical properties of the catalyst were characterized and analyzed by field-emission scanning electron microscopy, high-resolution transmission electron microscopy, X-ray powder diffraction, UV-Vis absorption spectra, Raman spectroscopy, and X-ray photoelectron spectroscopy. The activity of the photocatalyst was evaluated by its photocatalytic hydrogen production rate. The corresponding MoS₂ content of the catalyst was found to be 30%, and upon the exposure to 365nm UV light, a high photocatalytic hydrogen production rate of 1004 μmol^-1·h^-1·g^-1 was obtained. The catalytic rate is much greater than that obtained with MoS₂ or TiO₂ catalysts. The high hydrogen production rate indicated that the use of a MoS₂/TiO₂ composite catalyst can significantly improve the UV-induced photocatalytic hydrogen production performance. Because of the excellent photocatalytic hydrogen production performance of the MoS₂/TiO₂ composite, we studied and analyzed the hydrogen production mechanism.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

MoS₂/TiO₂复合催化剂的制备及其在紫外光下的光催化制氢活性

English

Preparation of MoS₂/TiO₂ Composite Catalyst and Its Photocatalytic Hydrogen Production Activity under UV Irradiation

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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中国化学会秘书处

MoS2/TiO2复合催化剂的制备及其在紫外光下的光催化制氢活性

English

Preparation of MoS2/TiO2 Composite Catalyst and Its Photocatalytic Hydrogen Production Activity under UV Irradiation

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

MoS₂/TiO₂复合催化剂的制备及其在紫外光下的光催化制氢活性

Preparation of MoS₂/TiO₂ Composite Catalyst and Its Photocatalytic Hydrogen Production Activity under UV Irradiation

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs