| CC/PANI/TiO2复合材料的制备及其光催化性能研究 |
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| 引用本文： | 陈凤华,石向东,梁娓娓,杨茂森,陈庆涛,姜利英,张永辉.CC/PANI/TiO2复合材料的制备及其光催化性能研究[J].稀有金属材料与工程,2021,50(10):3627-3633. |
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| 作者姓名： | 陈凤华 石向东 梁娓娓 杨茂森 陈庆涛 姜利英 张永辉 |
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| 作者单位： | 郑州轻工业大学材料与化学工程学院,郑州轻工业大学材料与化学工程学院,郑州轻工业大学材料与化学工程学院,郑州轻工业大学材料与化学工程学院,郑州轻工业大学材料与化学工程学院,郑州轻工业大学电气信息工程学院,郑州轻工业大学材料与化学工程学院 |
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| 基金项目： | 国家自然科学基金资助(项目号21671179和21904120); 河南省科技厅科技攻关计划项目(202102210045) |
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| 摘 要： | 先采用原位聚合的方法在碳布上负载聚苯胺,然后利用溶剂热法在制备的碳布/聚苯胺(CC/PANI)复合材料上生长二氧化钛纳米片,得到了可便捷分离的CC/PANI/TiO2复合光催化材料。通过SEM、XRD、UV、FTIR、XPS等手段对所制备的样品进行了形貌和结构表征,并比较了CC/PANI/TiO2复合材料和纯TiO2紫外-可见光条件下催化降解RhB的活性差异,结果表明CC/PANI/TiO2复合材料具有比TiO2更优异的光催化活性。光致发光光谱说明CC/PANI/TiO2复合材料的发光强度比纯TiO2的弱,有效抑制了光生载流子的复合；瞬态光电流响应和电化学阻抗谱(EIS)证明CC/PANI/TiO2纳米复合材料更有效促进电子-空穴对分离和提高转移效率；活性物质捕捉实验证实?OH和?O2-是复合材料光催化降解RhB过程中的主要活性物质。CC/PANI/TiO2复合材料循环利用6次后,仍然具有较高的催化活性,显示了其在污水处理领域中的良好应用前景。
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| 关 键 词： | 碳布 聚苯胺 二氧化钛 光催化 |
| 收稿时间： | 2021/1/24 0:00:00 |
| 修稿时间： | 2021/2/16 0:00:00 |
Synthesis of CC/PANI/TiO2 composite material and its photocatalytic performance |
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| Chen Fenghu,Shi Xiangdong,Liang Weiwei,Yang Maosen,Chen Qingtao,Jiang Liying and Zhang yonghui.Synthesis of CC/PANI/TiO2 composite material and its photocatalytic performance[J].Rare Metal Materials and Engineering,2021,50(10):3627-3633. |
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| Authors: | Chen Fenghu Shi Xiangdong Liang Weiwei Yang Maosen Chen Qingtao Jiang Liying and Zhang yonghui |
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| Affiliation: | College of Materials and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou,College of Materials and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou,College of Materials and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou,College of Materials and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou,College of Materials and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou,College of Electrical and Information Engineering,Zhengzhou University of Light Industry,Zhengzhou,College of Materials and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou |
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| Abstract: | Polyaniline was firstly grown on carbon cloth by in-situ polymerization. The final composite material of CC/PANI/ TiO2 was then successfully synthesized via solvothermal method, during which TiO2 nanosheets was formed on the prepared carbon cloth/polyaniline (CC/PANI) composite material. The synthesized photocatalysts were characterized using SEM, XRD, UV, FTIR,XPS and so on. The photocatalytic degradation performances of RhB over the prepared CC/PANI/TiO2 and the pure TiO2 were compared. The results indicated that CC/PANI/TiO2 composite material had better photocatalytic activity than TiO2 under UV-vis irradiation. PL showed that the luminescence intensity of CC/PANI/TiO2 was much weaker than that of pure TiO2, which inhibited the electron-hole pair recombination effectively. Transient photocurrent response and EIS curves verified that CC/PANI/TiO2 catalyst showed more efficient photocarrier separation and transfer efficiency, beneficial to the improvement of photocatalytic activity. The capture of active pieces experiments indicated that the free .OH radicals and .O2- radicals were the main active oxidizing species involved in the RhB photoreaction process of CC/PANI/TiO2. Moreover, CC/PANI/TiO2 catalyst still had high catalytic activity after 6 times of recycling, showing its good application prospects in the field of sewage treatment. |
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| Keywords: | Carbon cloth polyaniline titanium dioxide photocatalysis |
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