A novel synthesis process of ETS-4 titanosilicate using commercial anatase in the absence of fluoride ions  

作　　者：Li-ying Liu Wen-jun Tan Penny Xiao Yu-chun Zhai 

机构地区：[1]School of Materials and Metallurgy, Northeastem University, Shenyang 110819, China [2]Department of Chemical Engineering, Monash university, Wellington Road, Clayton, VIC 3800, Australia [3]Northeastern Research Academy, Northeastern University, Shenyang 110819, China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2012年第8期675-678,共4页矿物冶金与材料学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 51074205)

摘　　要：A novel synthesis process for ETS-4 titanosilicate using commercial anatase as the titanium source in the absence of fluoride ions was studied. Fluoride ions and traced ETS-4 seeds have important roles in forming ETS-4 structures. However, the method using ETS-4 seeds instead of fluoride ions to improve product purity and productivity is environment-friendly. ETS-4, ETS-4（NS）, and ETS-4（NaF） were respectively synthesized using traced ETS-4 seeds, without seeds, and with fluoride ions. The as-synthesized samples were identified by X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. Adsorption isotherms and adsorption heats of nitrogen and methane on the prepared ETS-4 were also measured. The results showed that ETS-4 samples could be prepared using anatase in the absence of fluoride ions, with good purity, comparable physicochemical properties, and excellent adsorption properties.A novel synthesis process for ETS-4 titanosilicate using commercial anatase as the titanium source in the absence of fluoride ions was studied. Fluoride ions and traced ETS-4 seeds have important roles in forming ETS-4 structures. However, the method using ETS-4 seeds instead of fluoride ions to improve product purity and productivity is environment-friendly. ETS-4, ETS-4（NS）, and ETS-4（NaF） were respectively synthesized using traced ETS-4 seeds, without seeds, and with fluoride ions. The as-synthesized samples were identified by X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. Adsorption isotherms and adsorption heats of nitrogen and methane on the prepared ETS-4 were also measured. The results showed that ETS-4 samples could be prepared using anatase in the absence of fluoride ions, with good purity, comparable physicochemical properties, and excellent adsorption properties.

关 键 词：TITANOSILICATE ANATASE gas adsorption microporous materials 

分 类 号：TQ174.758[化学工程—陶瓷工业] TQ134.11[化学工程—硅酸盐工业]