In2O3/g-C3N4 composite photocatalysts with enhanced visible light driven activity
In2O3/g-C3N4 composite photocatalysts with enhanced visible light driven activity
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In2O3/g-C3N4 复合光催化剂具有增强的可见光驱动活性
DOI：
10.1016/j.apsusc.2014.02.093
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发表时间：
2014-05-15
影响因子：
6.7
通讯作者：
Zhang, Wei-De
中科院分区：
文献类型：
--
作者：
Chen, Lu-Ya;Zhang, Wei-De
通过简单的热聚合工艺制备了新型In2O3/g-C3N4复合光催化剂。通过粉末 X 射线衍射、扫描电子显微镜、能量色散 X 射线光谱仪的透射电子显微镜、紫外-可见漫反射光谱、Brunauer-Emmett-Teller 表面积和热重分析对样品进行了表征。所制备的光催化剂在可见光下对罗丹明B和4-硝基苯酚的降解表现出显着增强的光催化性能。增强的光催化活性是由 g-C3N4 和 In2O3 的能级匹配产生的。研究发现空穴 (h(+)) 和超氧化物 (中心点 O-2(-)) 是罗丹明 B 光催化降解的主要反应物种。 (C) 2014 Elsevier B.V. 版权所有。
Novel In2O3/g-C3N4 composite photocatalysts were prepared by a simple thermal polymerization process. The samples were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy with energy dispersive X-ray spectrometer, UV-vis diffuse reflection spectroscopy, Brunauer-Emmett-Teller surface area and thermogravimetric analysis. The prepared photocatalysts exhibited significantly enhanced photocatalytic performance towards the degradation of rhodamine B and 4-nitrophenol under visible light. The enhanced photocatalytic activity was generated from the matching energy levels of g-C3N4 and In2O3. It was found that holes (h(+)) and superoxide (center dot O-2(-)) were the main reactive species in the photocatalytic degradation of rhodamine B. (C) 2014 Elsevier B.V. All rights reserved.