化工学报2013,Vol.64Issue(8):3054-3061,8.DOI:10.3969/j.issn.0438-1157.2013.08.050
纳米ZnO/CeO2复合氧化物的制备及其改性
Preparation and modification of nano-ZnO/CeO2 composite oxides
摘要
Abstract
Zinc oxide was prepared by the combustion method.ZnO/CeO2 composite oxides were synthesized by the precipitation method with zinc oxide as the coated object.The samples were characterized by XRD,SEM,IR,TG-DTA,UV-Vis and TEM.ZnO was coated by CeO2 and composite oxides were formed.The composite oxides were modified with modifier reagent,and modification effect was evaluated by the degree of oil-affinity.The type of modifier,mass ratio of modifier,reaction temperature and pH value of solution were studied.The optimal reaction conditions were as follows:modifier stearate,temperature 60℃,mass ratio of modifier 4% of composite oxides,pH value of solution 7.Particle size became smaller,dispersion of samples was better and the degree of oil-affinity of sample was improved after the samples were modified.关键词
ZnO/CeO2/复合氧化物/改性Key words
ZnO/CeO2 / composite oxides/ modification分类
化学化工引用本文复制引用
李秀萍,翟玉春,马培华,赵荣祥,李丽华,张金生..纳米ZnO/CeO2复合氧化物的制备及其改性[J].化工学报,2013,64(8):3054-3061,8.基金项目
国家重点基础研究发展计划项目(2007CB613603).supported by the National Basic Research Program of China (2007CB613603). (2007CB613603)