文献类型：专利

英文题名：Production of bismuth vanadate mesoporous single crystal for photolysis of water, involves adding equimolar bismuth nitrate and ammonium metavanadate to aqueous solution of nitric acid and obtaining acidified bismuth vanadate precursor

作者：TIAN B;WU J;XIAO Y;LUO Y;ZHANG J;LI Q;WU D;SI J

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN106012018-A

申请日：2016-06-12

公开日：2016-10-12

语种：英文

收录：DERWENT

摘要：NOVELTY - The production of bismuth vanadate mesoporous single crystal involves adding equimolar bismuth nitrate and ammonium metavanadate into aqueous solution of nitric acid, obtaining acidified bismuth vanadate precursor, adding silica nanospheres to acidified bismuth vanadate precursor solution, obtaining acidified silica nanospheres template, hydrothermally reacting acidified silica nanospheres template in acidic aqueous solution containing amorphous bismuth vanadate, obtaining single crystal of bismuth vanadate and etching with sodium hydroxide aqueous solution. USE - Production of bismuth vanadate mesoporous single crystal for photolysis of water. ADVANTAGE - The method improves the photocatalytic activity of water to oxygen. DETAILED DESCRIPTION - The production method of bismuth vanadate mesoporous single crystal involves adding equimolar bismuth nitrate and ammonium metavanadate into aqueous solution of nitric acid, stirring, obtaining acidified bismuth vanadate precursor, adding silica nanospheres to the solution of the acidified bismuth vanadate precursor solution for 2 hours, obtaining acidified silica nanospheres template, subjecting acidified silica nanospheres template to hydrothermal reaction in an acidic aqueous solution containing amorphous bismuth vanadate for 24 hours, obtaining single crystal of bismuth vanadate which comprises a template of silica nanospheres and etching bismuth vanadate single crystal containing silicon dioxide nanospheres template with sodium hydroxide aqueous solution.