| C/TiO2-SO42-的制备及其光解水性能 |
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| 引用本文： | 滕雪刚,杨仁春,任超,刘璐璐,汪明星. C/TiO2-SO42-的制备及其光解水性能[J]. 化工学报, 2017, 68(11): 4414-4422. DOI: 10.11949/j.issn.0438-1157.20170308 |
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| 作者姓名： | 滕雪刚 杨仁春 任超 刘璐璐 汪明星 |
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| 作者单位： | 安徽工程大学生物与化学工程学院, 安徽 芜湖 241000 |
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| 基金项目： | 国家自然科学基金项目（51572004）；安徽省高校自然科学基金重大项目（KJ2016SD06）；安徽工程大学校级杰出青年科学基金项目（2016JQ01）；安徽工程大学2016年中青年拔尖人才培养计划项目（2016BJRC002）。 |
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| 摘 要： | 通过溶胶-凝胶制备过程中水含量控制，分别获得了硫酸根修饰的TiO2（25）和无修饰的TiO2（150）两种二氧化钛载体。在两种载体上，通过浸渍法引入不同浓度的碳点胶体，获得了系列不同C含量的Cx/TiO2（25）和Cx/TiO2（150）催化剂。利用TEM、XRD、FT-IR、UV-Vis、BET、XPS等表征分析了催化剂的表面形貌、晶格间距、晶型结构、光吸收、孔结构及元素组成。结果显示：相对于无硫酸根修饰的TiO2（150）催化剂，硫酸根修饰的TiO2（25）催化剂的光吸收发生显著红移，展示了更宽的可见光响应；对于TiO2（25）样品，C的引入可提高其Oads/Olatt比值。催化性能研究显示，C的引入可以提高其光催化活性。
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| 关 键 词： | 硫酸根 复合材料 纳米材料 催化剂 碳点 光催化 制氢 |
| 收稿时间： | 2017-03-28 |
| 修稿时间： | 2017-07-19 |
Preparation of C/TiO2-SO42- and their water splitting performance |
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| TENG Xuegang,YANG Renchun,REN Chao,LIU Lulu,WANG Mingxing. Preparation of C/TiO2-SO42- and their water splitting performance[J]. Journal of Chemical Industry and Engineering(China), 2017, 68(11): 4414-4422. DOI: 10.11949/j.issn.0438-1157.20170308 |
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| Authors: | TENG Xuegang YANG Renchun REN Chao LIU Lulu WANG Mingxing |
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| Affiliation: | School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, Anhui, China |
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| Abstract: | The SO42- modified TiO2(25) and the unmodified TiO2(150) have been prepared by sol-gel method via controlling the amount of introduced deionized water. Two series of C modified Cx/TiO2(25) and Cx/TiO2(150) samples were obtained by impregnating the TiO2(25) and TiO2(150) in carbon dots solution with various concentrations. The lattice spacing, crystalline, light absorption, pore size, specific surface area and element composition of the prepared catalysts were characterized by TEM, XRD, FT-IR, UV-Vis, BET and XPS. The results indicated that compared with the unmodified TiO2(150), the SO42- modified TiO2(25) exhibited a distinct red shift phenomenon and broader visible light response for the light absorption. Moreover, the Oads/Olatt ratios can be improved distinctly for the TiO2(25) when the carbon dots were introduced. The catalytic performance showed that the addition of C can enhance the corresponding photocatalytic activity. |
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| Keywords: | SO42- composites nanomaterials catalyst carbon dots photocatalytic hydrogen production |
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