文献类型：期刊文献

英文题名：Preparation and investigation of flower-like carbon-doped titanium dioxide with visible light responsible

作者：Yu, Ruobing[1];Zhang, Xiaoyan[1];Huang, Xiaoye[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：48

期号：8

起止页码：3259

外文期刊名：RESEARCH ON CHEMICAL INTERMEDIATES

收录：;EI(收录号：20222412218606);WOS:【SCI-EXPANDED(收录号:WOS:000809697500002)】；

语种：英文

外文关键词：Microcrystalline cellulose; Flower-like carbon doped titanium dioxide (F-C@TiO2); Photocatalytic activity; Visible light absorption

摘要：The cellulose-based flower-like carbon-doped TiO2 particles were prepared by the one-step hydrothermal method, which was followed by high-temperature calcination. The morphology and composition of the samples were studied using Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. The flower-like carbon-doped TiO2 demonstrated a high absorption in the visible spectrum region, which originated from the combination of a layered solid structure and a narrow bandgap (E-g = 2.17 eV). The analysis of UV-Visible absorption spectra, photoluminescence spectra, and electron paramagnetic resonance spectroscopy revealed a high photocatalytic activity due to faster charge transfer in the visible region and a higher amount of center dot O-2(-). The synergistic effect of the flower structure and carbon doping can significantly improve the photocatalytic activity.