水资源与水工程学报

文章摘要

李洋，梁莹，刘洋，宋世举，束传康，王旭明.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Journal of Water Resources and Water Engineering[J].,2018,29(4):103-104

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

Performance of TiO₂-GO composites on removing organic pollutants in water

DOI：10.11705/j.issn.1672-643X.2018.04.17

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

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

基金项目: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）

Author Name	Affiliation
LI Yang, LIANG Ying, LIU Yang, SONG Shiju, SHU Chuankang, WANG Xuming	（华东理工大学理学院，上海 200237）

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中文摘要:

采用水热法制备了二氧化钛—氧化石墨烯复合物（TiO₂-GO）。X射线衍射花样表明：TiO₂具有锐钛矿结构，透射电子显微镜显示TiO₂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，TiO₂纳米粒子的存在可抑制GO的团聚，保证了TiO₂-GO对污染物的强吸附性；与单一TiO₂纳米粒子相比，GO的引入增强了TiO₂-GO对可见光的吸收，提高了TiO₂-GO复合物对污染物的吸附,并且GO与TiO₂之间的相互作用使TiO₂-GO表现出与TiO₂纳米粒子不同的光降解机制。

英文摘要:

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.

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