Nanocrystalline CaSb2O5(OH)2 and Ca2Sb2O7: Controlled syntheses, electronic structures and photocatalytic activity - Details

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Abstract：

A　facile　one-pot　pH-dependent　hydrothermal　method　has　been　developed　in　the　controlled　syntheses　of　CaSb2O5(OH)2　and　cubic　Ca2Sb2O7　with　large　specific　surface　area.　The　as-obtained　samples　were　characterized　by　X-ray　diffraction　(XRD),　N2-sorption　BET　surface　area,　UV-vis　diffuse　reflectance　spectroscopy　(DRS),　transmission　electron　microscopy　(TEM),　high-resolution　transmission　electron　microscopy　(HRTEM),　energy　dispersive　X-ray　analysis　(EDX)　and　Fourier　transformation　infrared　spectroscopy　(FT-IR).　The　electronic　structures　of　CaSb2O5(OH)2　and　cubic　Ca2Sb2O7　were　determined　by　density　functional　theory　(DFT)　calculations.　The　photocatalytic　performance　of　the　as-prepared　CaSb2O5(OH)2　and　cubic　Ca2Sb2O7　was　evaluated　by　the　degradation　of　methyl　orange　(MO)　and　gaseous　benzene.　It　was　found　that　CaSb2O5(OH)2　is　more　photocatalytic　active　than　Ca2Sb2O7.　A　low　crystal　packing　factor　(PF)　of　CaSb2O5(OH)2　is　probably　responsible　for　its　superior　photocatalytic　performance　as　compared　to　that　of　cubic　Ca2Sb2O7.　©　2012　Elsevier　B.V.

Keyword：

Antimony compounds Azo dyes Calcium compounds Crystal structure Density functional theory Electronic structure Energy dispersive X ray analysis Fourier transforms High resolution transmission electron microscopy Infrared spectroscopy Nanocrystals Photocatalysis Photocatalytic activity X ray diffraction analysis

Community：

[ 1 ] [Huang, Renkun]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 2 ] [Xu, Ximing]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 3 ] [Zhu, Jia]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
[ 4 ] [Liu, Wenjun]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 5 ] [Yuan, Rusheng]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 6 ] [Fu, Xianzhi]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 7 ] [Zhang, Yongfan]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
[ 8 ] [Li, Zhaohui]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China

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zhaohuili1969@yahoo.com

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Source ：

Applied Catalysis B: Environmental

ISSN： 0926-3373

Year： 2012

Volume： 127

Page： 205-211

5 . 8 2 5

JCR@2012

2 0 . 3 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 17

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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