罗丹明B
材料科学
光催化
纳米复合材料
化学工程
吸附
降级(电信)
氧化物
石墨烯
纳米颗粒
纳米技术
催化作用
有机化学
冶金
化学
电信
计算机科学
工程类
作者
Feitong Lu,Wei Wei,Qiang Shi,Ning Wang,Yi Xiao,Zibo Li
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2023-08-29
卷期号:34 (46): 465602-465602
标识
DOI:10.1088/1361-6528/acef27
摘要
Abstract TiO 2 /graphene oxide (GO) nanocomposites with high contact interface were prepared with glycol 400 (PEG400) served as dispersant. This nanocomposite exhibits improved photocatalytic efficiency in contrast with the nanocomposite prepared without PEG400. In this work, the photocatalytic performance was investigated by observing the degradation rate of Rhodamine B (RhB). And it is found that the mass ratios of GO in nanocomposites plays an important role. When the mass ratio of GO reached 45%, the photocatalytic performance of the nanocomposites reached the highest, which is ∼72%. Moreover, the photocatalytic mechanism was studied through theoretical calculations, which can be summarized as follows: (1) the presence of GO decreases the band gap of TiO 2 nanoparticles. (2) GO inhibits the the recombination of photogenerated electron–hole pair. (3) GO improves the adsorption capacity of TiO 2 nanoparticles for RhB. This work promoted the application of TiO 2 /GO nanocomposites in wastewater treatment.
科研通智能强力驱动
Strongly Powered by AbleSci AI