Preparation and photocatalytic activity of Fe3+ and Eu3+ co-doped TiO2 hollow microspheres - Details

author：

Liu, Yanglong (Liu, Yanglong.) ^[1] | Zheng, Yuying (Zheng, Yuying.) ^[2] (Scholars：郑玉婴) | Cao, Ningning (Cao, Ningning.) ^[3] | Shang, Pengbo (Shang, Pengbo.) ^[4]

Indexed by：

EI Scopus PKU CSCD

Abstract：

Fe3+　and　Eu3+　co-doped　TiO2　(Fe3+-Eu3+/TiO2)　hollow　microspheres　were　prepared　by　the　sol-gel　method　and　characterized　by　techniques　such　as　XRD,　TEM,　BET　and　XPS　etc.　Photocatalytic　degradation　of　methylene　blue　(MB)　was　used　as　a　probe　reaction　to　evaluate　their　photocatalytic　activity.　The　results　show　that　the　surface　of　SiO2　microspheres　evenly　coated　with　a　layer　of　TiO2　and　the　treatment　ultrasound　is　beneficial　to　improve　the　dispersion　of　the　SiO2@TiO2　composite　microspheres.　Part　of　the　Fe3+-Eu3+/TiO2　hollow　microspheres　were　collapse,　which　were　obtained　through　grinding　before　alcining　the　SiO2@TiO2　composite　microspheres.　While　the　better　structural　integrity　of　Fe3+-Eu3+/TiO2　hollow　microspheres　were　prepared　by　grinding　after　calcining　or　without　grinding.　XRD　and　BET　analysis　indicate　that　Fe3+-Eu3+/TiO2　hollow　microspheres　exist　in　the　form　of　anatase　and　have　good　mesoporous　structure.　The　co-doping　of　Fe3+　and　Eu3+　shows　a　synergistic　effect　in　TiO2　hollow　microspheres,　which　can　decrease　the　particle　size　of　Fe3+-Eu3+/TiO2　hollow　microspheres　and　and　increase　the　specific　surface　area.　When　the　doping　content　of　Fe3+　and　Eu3+　is　1.0%　and　0.5%　respectively,　Fe3+-Eu3+/TiO2　hollow　microspheres　exhibit　the　best　photocatalytic　activity.　©　2016,　BUAA　Culture　Media　Group　Ltd.　All　right　reserved.

Keyword：

Aromatic compounds Complexation Europium compounds Grinding (machining) Iron compounds Microspheres Particle size Particle size analysis Photocatalytic activity Silica Sol-gel process Sol-gels Titanium dioxide Ultrasonics X ray diffraction

Community：

[ 1 ] [Liu, Yanglong]School of Chemical Engineering, Fuzhou University, Fuzhou; 350108, China
[ 2 ] [Zheng, Yuying]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
[ 3 ] [Zheng, Yuying]Myh New Materials of Jiangsu, Suqian; 223600, China
[ 4 ] [Cao, Ningning]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
[ 5 ] [Shang, Pengbo]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China

Reprint 's Address：

郑玉婴
[zheng, yuying]college of materials science and engineering, fuzhou university, fuzhou; 350108, china;;[zheng, yuying]myh new materials of jiangsu, suqian; 223600, china

Email：

yyzheng@fzu.edu.cn

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