LI Xiuping, ZHAI Yuchun, MA Peihua, et al. Preparation and modification of nano-ZnO/CeO2 composite oxides[J]. CIESC Journal, 2013, (8): 3054-3061. DOI: 10.3969/j.issn.0438-1157.2013.08.050.
DOI:
LI Xiuping, ZHAI Yuchun, MA Peihua, et al. Preparation and modification of nano-ZnO/CeO2 composite oxides[J]. CIESC Journal, 2013, (8): 3054-3061. DOI: 10.3969/j.issn.0438-1157.2013.08.050.DOI:
Preparation and modification of nano-ZnO/CeO2 composite oxides
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.