期刊
CHEMICAL PHYSICS LETTERS
卷 691, 期 -, 页码 408-414出版社
ELSEVIER
DOI: 10.1016/j.cplett.2017.11.037
关键词
Reduced graphene oxide; N-doped TiO2; Tetracycline hydrochloride; Enhanced photocatalytic activity; Reusable
资金
- Hunan Provincial Natural Science Foundation of China [2015JJ2043]
- Hunan Provincial Department of education [2015C0356]
- Science and Technology Planning project of Hengyang, Hunan Province, China [2014KJ24]
N-doped TiO2 nanoparticles deposited on reduced graphene oxide sheets were successfully prepared by a photoreduction method. The synthesized N-TiO2/rGO composite was characterized by XRD, SERS, XPS, TEM, UV-vis DRS and PL, and its visible-light photocatalytic activity was evaluated by degradation of tetracycline hydrochloride (TC). The results showed that N-TiO2/rGO composites exhibited a more enhanced photodegradation activity compared to pure TiO2 and N-doped TiO2. Trapping tests indicated that not (OH)-O-center dot and h(+) but O-center dot(2) was chiefly responsible for the photodegradation process. The reusable experiments showed that the prepared N-TiO2/rGO catalyst was stable during the photodegradation of TC. (C) 2017 Elsevier B.V. All rights reserved.
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