材料科学
纳米棒
光催化
石墨烯
氧化物
傅里叶变换红外光谱
光致发光
热重分析
化学工程
高分辨率透射电子显微镜
光化学
透射电子显微镜
纳米技术
光电子学
有机化学
催化作用
工程类
化学
冶金
作者
Jincheng Liu,Hongwei Bai,Yinjie Wang,Zhaoyang Liu,Xiwang Zhang,Darren Delai Sun
标识
DOI:10.1002/adfm.201001391
摘要
Abstract TiO 2 nanorods are self‐assembled on the graphene oxide (GO) sheets at the water/toluene interface. The self‐assembled GO–TiO 2 nanorod composites (GO–TiO 2 NRCs) can be dispersed in water. The effective anchoring of TiO 2 nanorods on the whole GO sheets is confirmed by transmission electron microscopy (TEM), X‐ray diffraction (XRD), Fourier transform IR spectroscopy (FTIR), and thermogravimetric analysis (TGA). The significant increase of photocatalytic activity is confirmed by the degradation of methylene blue (MB) under UV light irridiation. The large enhancement of photocatalytic activity is caused by the effective charge anti‐recombination and the effective absorption of MB on GO. The effective charge transfer from TiO 2 to GO sheets is confirmed by the significant photoluminescence quenching of TiO 2 nanorods, which can effectively prevent the charge recombination during photocatalytic process. The effective absorption of MB on GO is confirmed by the UV‐vis spectra. The degradation rate of MB in the second cycle is faster than that in the first cycle because of the reduction of GO under UV light irradiation.
科研通智能强力驱动
Strongly Powered by AbleSci AI