文献类型：期刊文献

中文题名：二氧化钛—氧化石墨烯复合物去除水中有机污染物的性能研究

英文题名：Performance of TiO_2-GO composites on removing organic pollutants in water

作者：李洋[1];梁莹[1];刘洋[1];宋世举[1];束传康[1];王旭明[1]

机构：[1]华东理工大学理学院,上海200237

年份：2018

卷号：29

期号：4

起止页码：103

中文期刊名：水资源与水工程学报

外文期刊名：Journal of Water Resources and Water Engineering

收录：CSTPCD;;CSCD:【CSCD_E2017_2018】；

基金：上海市教育委员会科研创新项目(14ZZ057);大学生创新创业训练计划资助项目(201710251074)

语种：中文

中文关键词：二氧化钛;氧化石墨烯;二氧化钛-石墨烯复合物;吸附性能;光催化降解性能;有机物去除;水处理

外文关键词：titanium dioxide;graphene oxide;titanium dioxide -graphene oxide（TiO2 -GO）;adsorption property;photocatalysis degradation property;removing orgain pollutants;water treatment

摘要：采用水热法制备了二氧化钛—氧化石墨烯复合物(TiO_2-GO)。X射线衍射花样表明:TiO_2具有锐钛矿结构,透射电子显微镜显示TiO_2纳米粒子均匀分散在GO片层上。在去除水中有机污染物方面:与GO相比,TiO_2纳米粒子的存在可抑制GO的团聚,保证了TiO_2-GO对污染物的强吸附性;与单一TiO_2纳米粒子相比,GO的引入增强了TiO_2-GO对可见光的吸收,提高了TiO_2-GO复合物对污染物的吸附,并且GO与TiO_2之间的相互作用使TiO_2-GO表现出与TiO_2纳米粒子不同的光降解机制。
Titanium dioxide-graphene oxide（TiO2-GO） composites have been synthesized by a hydrothermal process.X-ray diffraction patterns demonstrate the anatase-type of TiO2.Transmission electron microscope shows that TiO2 nanoparticles are evenly distributed on GO sheets.The test of removing organic pollutants in water indicates that TiO2-GO composites behave much stronger adsorption of organic pollutants than GO sheets because the insertion of TiO2 nanoparticles between GO sheets can prevent the aggregation of GO.Compared with single TiO2 nanoparticles,the introduction of GO enhanced absorption in visible light region by TiO2-GO and improved adsorption of organic pollutants in water by TiO2-GO composites.Due to the interactions between TiO2 and GO,the photodegradation mechanism of TiO2-GO composites on Rhodamine B is completely different from that of TiO2 nanoparticles.