| g-C3N4/Ag/TiO2 NTs的制备及其对西维因的光催化降解 |
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| 引用本文： | 谭冲,李媛媛,王欢欢,李俊生,夏至,左金龙,姚琳. g-C3N4/Ag/TiO2 NTs的制备及其对西维因的光催化降解[J]. 材料研究学报, 2022, 36(5): 392-400. DOI: 10.11901/1005.3093.2021.139 |
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| 作者姓名： | 谭冲 李媛媛 王欢欢 李俊生 夏至 左金龙 姚琳 |
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| 作者单位： | 1.哈尔滨商业大学药学院(药物工程技术研究中心) 哈尔滨 150076;2.哈尔滨商业大学食品工程学院 哈尔滨 150076;3.哈尔滨师范大学生命科学与技术学院 哈尔滨 150025 |
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| 摘 要： | 采用阳极氧化法制备二氧化钛纳米管(TiO2 NTs),然后在紫外光和微波辅助下引入Ag、g-C3N4制备出g-C3N4/Ag/TiO2 NTs三元复合光催化材料。用扫描电镜(SEM)、X-射线衍射(XRD)、X-射线光电子能谱(XPS)、紫外-可见漫反射光谱(UV-Vis)、光致发光(PL)等手段对g-C3N4/Ag/TiO2 NTs进行表征,研究了这种材料对西维因的降解性能。结果表明,在模拟太阳光照射下,g-C3N4/Ag/TiO2 NTs对西维因的降解率由TiO2 NTs的29.1%提高到51.8%。光催化活性的提高,与Ag表面等离子体共振效应、Ag优异的电荷传导性以及g-C3N4与TiO2 NTs界面的异质结有关。
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| 关 键 词： | 无机非金属材料 TiO2 Ag g-C3N4 西维因 光催化 |
| 收稿时间： | 2021-02-07 |
Preparation of g-C3N4/Ag/TiO2 NTs and Photocatalytic Degradation of Ceftazidine |
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| TAN Chong,LI Yuanyuan,WANG Huanhuan,LI Junsheng,XIA Zhi,ZUO Jinlong,YAO Lin. Preparation of g-C3N4/Ag/TiO2 NTs and Photocatalytic Degradation of Ceftazidine[J]. Chinese Journal of Materials Research, 2022, 36(5): 392-400. DOI: 10.11901/1005.3093.2021.139 |
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| Authors: | TAN Chong LI Yuanyuan WANG Huanhuan LI Junsheng XIA Zhi ZUO Jinlong YAO Lin |
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| Abstract: | Titanium oxide nano-tubes (TiO2 NTs) were firstly prepared by anodic oxidation method, and then Ag and carbonitride g-C3N4 were deposited onto TiO2 NTs under the synergistic action of ultraviolet irradiation and microwave heating to prepare the ternary composite photocatalyst g-C3N4/Ag/TiO2 NTs. Then the prepared composites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV Vis diffuse reflectance spectroscopy (UV-Vis) and photoluminescence spectroscopy (PL).The results show that the composite of g-C3N4/Ag/TiO2 NTs presents a higher degradation rate of 51.8% for the carbaryl under the simulated sunlight, in the contrast, that of the simple TiO2 NTs is 29.1% only. The improvement of photocatalytic activity is related to the combined effect of the surface plasmon resonance effect of Ag, the excellent charge conductivity of Ag and the formation of heterojunction between g-C3N4 and TiO2 NTs. |
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| Keywords: | inorganic nonmetallic materials TiO2 Ag g-C3N4 carbaryl photocatalysis |
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