Nanocrystalline CaSb 2O 5(OH) 2 and Ca 2Sb 2O 7: 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　CaSb　2O　5(OH)　2　and　cubic　Ca　2Sb　2O　7　with　large　specific　surface　area.　The　as-obtained　samples　were　characterized　by　X-ray　diffraction　(XRD),　N　2-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　CaSb　2O　5(OH)　2　and　cubic　Ca　2Sb　2O　7　were　determined　by　density　functional　theory　(DFT)　calculations.　The　photocatalytic　performance　of　the　as-prepared　CaSb　2O　5(OH)　2　and　cubic　Ca　2Sb　2O　7　was　evaluated　by　the　degradation　of　methyl　orange　(MO)　and　gaseous　benzene.　It　was　found　that　CaSb　2O　5(OH)　2　is　more　photocatalytic　active　than　Ca　2Sb　2O　7.　A　low　crystal　packing　factor　(PF)　of　CaSb　2O　5(OH)　2　is　probably　responsible　for　its　superior　photocatalytic　performance　as　compared　to　that　of　cubic　Ca　2Sb　2O　7.　©　2012　Elsevier　B.V.

Keyword：

Crystal structure; Electronic structure; Hydrothermal; Photocatalysis

Community：

[ 1 ] [Huang, R.]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 2 ] [Xu, X.]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 3 ] [Zhu, J.]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
[ 4 ] [Liu, W.]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 5 ] [Yuan, R.]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 6 ] [Fu, X.]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China
[ 7 ] [Zhang, Y.]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
[ 8 ] [Li, Z.]Research Institute of Photocatalysis, Fujian Provincial Key Lab. of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China

Reprint 's Address：

[Li, Z.]Research Institute of Photocatalysis, Fujian Provincial Key Laboratory of Photocatalysis, State Key Laboratory Breeding Base, Fuzhou University, Fuzhou 350002, China

Email：

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

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WoS CC Cited Count：

SCOPUS Cited Count： 17

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 2

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