文献类型：专利

英文题名：Preparation of graphene/titanium dioxide compound light catalyst used for, e.g. solar cell, by subjecting graphite oxide and organic solvent to ultrasonic processing, adding precursor of titanium salt and deionized water, and heating

作者：ZHU Y;YANG X;WANG S;JIANG X;ZHOU K

机构：[1]UNIV EAST CHINA SCI&TECHNOLOGY

申请号：CN101890344-A

申请日：2010-07-27

公开日：2010-11-24

语种：英文

收录：DERWENT

摘要：NOVELTY - A graphene/titanium dioxide compound light catalyst is prepared by dissolving graphite oxide in organic solvent, subjecting mixture to ultrasonic processing, adding a precursor of a titanium salt, stirring, adding deionized water, stirring, heating the mixture, adding absolute ethyl alcohol and deionized water, stirring, and drying. USE - Method of preparing graphene/titanium dioxide compound light catalyst for environment protection or solar cell. ADVANTAGE - The method utilizes easy to obtain raw materials, prepares product having good catalytic activity and optical property, and is simple, safe and low cost. DETAILED DESCRIPTION - A graphene/titanium dioxide compound light catalyst is prepared by: (A) dissolving graphite oxide (5-60 g) in organic solvent (20-50 ml), and subjecting mixture to ultrasonic processing for 30-60 minutes to obtain dispersion solution; (B) adding a precursor of a titanium salt into the dispersion solution, stirring for 20-60 minutes, adding deionized water (0-1 ml), and stirring for 30-90 minutes; and (C) heating the mixture at 120-200 degrees C for 4-20 hours, adding absolute ethyl alcohol and deionized water, stirring, and drying at 40-80 degrees C for 8-24 hours. The organic solvent is absolute ethyl alcohol, isopropyl alcohol, ethylene glycol, and/or ethanol-acetic acid. The precursor of the titanium salt is titanium tetrachloride, tetrabutyl titanate, or titanium tetraisopropanolate. The ratio of graphite oxide and precursor of the titanium salt is 1:10-500