TiO2-SiO2 composite oxides were prepared by sol-gel method with TiOSO4 and sodium silicate as precursors.TiO2-SiO2 composite oxides were characterized by XRD,SEM,TEM,BET,laser particle size analyzer and UV-Vis.The influence of preparation condition on the physical properties such as crystalline phase,morphology,pore structure and particle size of TiO2-SiO2 composite oxides were investigated.The degradation properties of TiO2-SiO2 composite oxides in Rhodamine B solution under ultraviolet region were investigated.The results showed that TiO2/SiO2 composite oxides possessed an excellent photocatalytic activity which was obviously superior to that of commercial P25 TiO2.The calcination temperature had the greatest influence on the performance of catalyst.
Zhou Peng
,
Guo Qiushuang
,
Li Xiaoyun
,
Sun Yanmin
,
Miao Jing
,
Yu Haibin
. Application of mesoporous TiO2-SiO2 composite oxide inphotocatalytic degradation of Rhodamine B[J]. Inorganic Chemicals Industry, 2019
, 51(7)
: 93
-99
.
DOI: 10.11962/1006-4990.2019-0142