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| TiO2/石墨烯复合光催化剂的制备及其吸附与光催化降解性能 | |
| 引用本文： | 李 静,周仕林,张章堂.TiO2/石墨烯复合光催化剂的制备及其吸附与光催化降解性能[J].水资源与水工程学报,2013,24(3):102-104. |
| 作者姓名： | 李 静 周仕林 张章堂 |
| 作者单位： | 1. 上海理工大学环境与建筑学院 上海200093 2. 上海理工大学理学院 上海200093 3. 台湾宜兰大学环境工程系,宜兰260 |
| 基金项目： | 上海市科委部分地方院校能力建设项目，台湾宜兰大学行政院国家科学委员会计划 |
| 摘 要： | 近年来,利用石墨烯独特的电学性质及高比表面积对一些材料进行修饰,制备性能更好的复合新材料成为材料学研究热点.本研究利用氧化还原法制备石墨烯,并进一步采用水热法制备TiO2/石墨烯(GN)纳米复合光催化剂.采用TEM,XRD,BET,UV-Vis DRS等对所制备的纳米复合材料进行表征.实验研究表明:随着石墨烯含量的增加,制备的复合材料光响应区域扩大,比表面积增加.研究证明TiO2/石墨烯对亚甲基蓝(MB)有更好的吸附及光催化降解效果.经计算,在室温下,pH =8时,P25-10％ GN对MB的饱和吸附量为50 mg/g. |
| 关 键 词： | 石墨烯 TiO2 光催化剂 吸附 光催化 亚甲基蓝 |
| 收稿时间： | 1/7/2013 12:00:00 AM |
| 修稿时间： | 2013/1/25 0:00:00 |
Preparation of TiO2/graphene composite photocatalyst and its adsorptive and photocatalytic performance |
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| LI Jing,ZHOU Shilin and ZHANG Zhangtang.Preparation of TiO2/graphene composite photocatalyst and its adsorptive and photocatalytic performance[J].Journal of water resources and water engineering,2013,24(3):102-104. | |
| Authors: | LI Jing ZHOU Shilin and ZHANG Zhangtang |
| Affiliation: | School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China;college of Science, University of Shanghai for Science and Technology, Shanghai 200093, China;Department of Environmental Engineering, National I-Lan University, I-Lan 260, Taiwan, China [KH*3D] |
| Abstract: | In recent years, graphene has become a research focus because of its unique electrical properties and high specific surface area. In this study, graphene was prepared by the oxidation-reduction method, and then TiO2/ graphene (GN) composite photocatalyst was prepared by hydrothermal method. The composite was characterized by TEM, XRD, BET, UV-Vis DRS. The experiment showed that with the increase of graphene ratio, the light absorption region of the composite expanded into visible region, and its surface area increased. The TiO2/ graphene has better adsorption and photocatalytic degradation efficiency for methylene blue (MB). The saturated adsorption capacity of P25-10%GN for MB is 50mg/g at pH 8and room temperature. |
| Keywords: | graphene TiO2 photocatalyst adsorption photocatalytic methylene blue |
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