日用化学工业2018，Vol.48Issue(2)：61-66,6.DOI:10.13218/j.cnki.csdc.2018.02.001
微乳法制备棒状ZnO材料及其光催化性能
Preparation of rodlike ZnO materials by microemulsion method and their photocatalytic properties
摘要
Abstract
Pseudo-ternary phase diagrams of microemulsion system of hexadecyltrimethylammonium bromide (CTAB)/n-butanol/cyclohexane/zinc nitrate or ammonium oxalate solution were drawn by turbidimetry,and the best mass ratio of CTAB to n-butanol was 1 ∶ 1 in the maximum stable region of microemulsion.Under this condition,when m (CTAB + n-butanol) ∶ m (cyclohexane) was 3 ∶ 7,zinc oxalate dihydrate,which was the precursor of ZnO,was prepared by a microemulsion method using zinc nitrate and ammonium oxalate as raw materials.ZnO materials were prepared by calcining zinc oxalate dihydrate.The effects of R (the molar ratio of water to CTAB) and reactant concentration on the structure,morphology,optical property and photocatalytic property of ZnO materials were studied.Results show that the morphologies of ZnO power are rodlike and they exhibit hexagonal wurtzite structure.The sizes of samples are affected by R and reactant concentration.All the samples have good photocatalytic effect on the catalytic degradation of methylene blue solution under the irradiation of 300 W Hg lamp,and the photocatalytic degradation process follows quasi-first-order kinetics.Among which the degradation rate of methylene blue solution achieves 97.0％ for 90 min illumination and the corresponding reaction rate constant k is the largest,and with best photocatalytic property,when the reactant concentration is 0.15 mol/L,R =15.关键词
十六烷基三甲基溴化铵/ZnO/微乳液/光催化活性Key words
hexadecyltrimethylammonium bromide/zinc oxide/microemulsion/photocatalysis分类
化学化工引用本文复制引用
王明华,蔡红兰,乔青安,任淑华,朱冬冬,薛众鑫..微乳法制备棒状ZnO材料及其光催化性能[J].日用化学工业,2018,48(2):61-66,6.基金项目
国家自然科学基金资助项目(21501087) （21501087）
山东省自然科学基金资助项目(ZR2014BM037) （ZR2014BM037）
