Mixed valence copper oxide composites derived from metal-organic frameworks for efficient visible light fuel denitrification - Details

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The　construction　of　heterojunctions　has　been　used　to　optimize　photocatalyst　fuel　denitrification.　In　this　work,　HKUST-1(Cu)　was　used　as　a　sacrificial　template　to　synthesize　a　composite　material　CuxO　(CuO/Cu2O)　that　retains　the　original　MOF　framework　for　photocatalytic　fuel　denitrification　by　calcination　at　different　temperatures.　By　adjusting　the　temperature,　the　content　of　CuO/Cu2O　can　be　changed　to　control　the　performance　and　structure　of　CuxO-T　effectively.　The　results　show　that　CuxO-300　has　the　best　photocatalytic　performance,　and　its　denitrification　rate　reaches　81%　after　4　hours　of　visible　light　(≥420　nm)　irradiation.　Through　the　experimental　analysis　of　pyridine＇s　infrared　and　XPS　spectra,　we　found　that　calcination　produces　CuxO-T　mixed-valence　metal　oxide,　which　can　create　more　exposed　Lewis　acid　sites　in　the　HKUST-1(Cu)　framework.　This　leads　to　improved　pyridine　adsorption　capabilities.　The　mixed-valence　metal　oxide　forms　a　type　II　semiconductor　heterojunction,　which　accelerates　carrier　separation　and　promotes　photocatalytic　activity　for　pyridine　denitrification.　©　2023　The　Royal　Society　of　Chemistry.

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[ 1 ] [Li J.]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
[ 2 ] [Huang R.]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
[ 3 ] [Huang R.]Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde, 352100, China
[ 4 ] [Huang R.]Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde, 352100, China
[ 5 ] [Chen L.]Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde, 352100, China
[ 6 ] [Chen L.]Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde, 352100, China
[ 7 ] [Xia Y.]Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde, 352100, China
[ 8 ] [Xia Y.]Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde, 352100, China
[ 9 ] [Yan G.]Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde, 352100, China
[ 10 ] [Yan G.]Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde, 352100, China
[ 11 ] [Liang R.]Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde, 352100, China
[ 12 ] [Liang R.]Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde, 352100, China

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RSC Advances

ISSN： 2046-2069

Year： 2023

Issue： 51

Volume： 13

Page： 36477-36483

3 . 9

JCR@2023

3 . 9 0 0

JCR@2023

JCR Journal Grade：2

CAS Journal Grade：3

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SCOPUS Cited Count： 1

ESI Highly Cited Papers on the List： 0 Unfold All

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