论文编号: | |
论文题目: | Novel mesoporous TiO2@g-C3N4 hollow core@shell heterojunction with enhanced photocatalytic activity for water treatment and H-2 production under simulated sunlight |
英文论文题目: | Novel mesoporous TiO2@g-C3N4 hollow core@shell heterojunction with enhanced photocatalytic activity for water treatment and H-2 production under simulated sunlight |
第一作者: | 郭娜 |
英文第一作者: | Guo,Na |
联系作者: | 于洪文 |
英文联系作者: | Yu,Hongwen |
外单位作者单位: | |
英文外单位作者单位: | |
发表年度: | 2018 |
卷: | 353 |
期: | |
页码: | 80-88 |
摘要: | A novel mesoporous TiO2@g-C3N4 hollow core@shell heterojunction photocatalyst was engineered for the first time by in situ calcining and growing of cyanamide (CY) on the surface of TiO2. The HTCN-1 possesses good structure and performance when the addition amount of CY is 1 mL. HTCN-1 shows high photocatalytic activity toward congo red (CR), rhodamine B (RhB), phenol and ciprofloxacin (CIP) with degradation efficiencies of 97%, 100%, 73%, and 74%, respectively. HTCN-1 also displays high photocatalytic activity for H-2 generation at rate of 7.9 mu mol h(-1). A possible charger transfer mechanism and photocatalytic degradation mechanism of HTCN-1 are proposed basing on the experiment results. The enhanced photocatalytic activity may be attributed to the higher charge transfer efficiency of photogenerated electron-hole (e(-)-h(+)) pairs caused by close contacts, a larger interfacial area, and the higher barrier for conduction bending. What's more, HTCN-1 possesses relatively high stability during the entire photoreaction process. Given the unique spatial structure and superior photocatalytic characteristics of the HTCN-1, there is great potential for applications in water treatment and H-2 generation. |
英文摘要: | A novel mesoporous TiO2@g-C3N4 hollow core@shell heterojunction photocatalyst was engineered for the first time by in situ calcining and growing of cyanamide (CY) on the surface of TiO2. The HTCN-1 possesses good structure and performance when the addition amount of CY is 1 mL. HTCN-1 shows high photocatalytic activity toward congo red (CR), rhodamine B (RhB), phenol and ciprofloxacin (CIP) with degradation efficiencies of 97%, 100%, 73%, and 74%, respectively. HTCN-1 also displays high photocatalytic activity for H-2 generation at rate of 7.9 mu mol h(-1). A possible charger transfer mechanism and photocatalytic degradation mechanism of HTCN-1 are proposed basing on the experiment results. The enhanced photocatalytic activity may be attributed to the higher charge transfer efficiency of photogenerated electron-hole (e(-)-h(+)) pairs caused by close contacts, a larger interfacial area, and the higher barrier for conduction bending. What's more, HTCN-1 possesses relatively high stability during the entire photoreaction process. Given the unique spatial structure and superior photocatalytic characteristics of the HTCN-1, there is great potential for applications in water treatment and H-2 generation. |
刊物名称: | Journal of Hazardous Materials |
英文刊物名称: | Journal of Hazardous Materials |
论文全文: | |
英文论文全文: | |
全文链接: | |
其它备注: | |
英文其它备注: | |
学科: | |
英文学科: | |
影响因子: | |
第一作者所在部门: | |
英文第一作者所在部门: | |
论文出处: | |
英文论文出处: | |
论文类别: | |
英文论文类别: | |
参与作者: | Y. Zeng, H. Y. Li, X. J. Xu, H. W. Yu and X. R. Han |
英文参与作者: | Y. Zeng, H. Y. Li, X. J. Xu, H. W. Yu and X. R. Han |
删除或更新信息,请邮件至freekaoyan#163.com(#换成@)