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| Ag2CO3修饰TiO2增强其光催化降解甲基橙研究 |
| Enhancing the Photocatalytic Activity of TiO2 by the Modification of Ag2CO3 |
| Received:April 10, 2018 |
| DOI： |
| 中文关键词: 光催化 Ag2CO3 TiO2 异质结 电荷分离 |
| 英文关键词: photocatalysis Ag2CO3 TiO2 heterostructures charge separation |
| 基金项目:绿色催化四川省高校重点实验室开放课题(LYJ1603)。 |
| Author Name | Affiliation | E-mail | | SI Yujun | Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, Zigong 643000, Sichuan, China | syj08448@163.com | | LI Minjiao | Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, Zigong 643000, Sichuan, China | | | XIONG Zhongping | Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, Zigong 643000, Sichuan, China | | | ZHANG Shulin | College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong 643000, Sichuan, China | zsl16938@126.com |
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| 中文摘要: |
| 在TiO2表面沉积Ag2CO3制备了Ag2CO3/TiO2异质结光催化剂。用X射线衍射、比表面(BET)、能量散射X射线谱(EDS)表征催化剂的结构和组成，用表面光电压谱(SPV)研究了光催化剂的光生电荷分离特性，并考察了异质结光催化剂对甲基橙的光催化降解活性。结果表明，Ag2CO3沉积在TiO2表面有效增加了异质结光生电子-空穴分离速率，从而增强了光催化剂对甲基橙的光催化降解性能。 |
| 英文摘要: |
| Ag2CO3/TiO2, as a kind of heterojunctions, were prepared by depositing Ag2CO3 on the surface of TiO2, and then characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) method, energy dispersive X-ray spectrometer (EDS) and surface photovoltage (SPV) spectroscopy. The photocatalytic activity was evaluated in the degradation reaction of methyl orange under simulated sunlight irradiation. The results show that the separation rate of the photo-induced electron-hole pair in TiO2 has significantly been promoted by Ag2CO3, resulting in the enhanced photocatalytic activity toward the degradation of methyl orange. |
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