Direct Conversion of Passivated Photo-Corroded Sites into Active Co-Catalysts via In Situ Targeting - Details

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Abstract：

Localized　accumulation　of　carriers　frequently　induces　corrosion　on　the　surfaces　of　photocatalysts,　restricting　the　efficacy　of　photocatalytic　technology.　The　development　of　a　strategy　that　precisely　targets　and　transforms　passivated　corrosion　regions　into　reactive　sites　holds　significant　potential,　yet　remains　technically　challenging.　Herein,　an　advanced　microscopy　study　reveals　that　BiOBr　photocatalysts　are　susceptible　to　severe　photo-corrosion,　leading　to　a　continual　thickening　of　Bi2O3　crystalline　films　as　the　photo-oxidation　products　accumulate　on　the　photocatalytic　surfaces.　Through　a　metal　cation　intercalation　process,　it　is　demonstrated　that　the　passivated　Bi2O3　films　are　precisely　targeted　by　the　accumulated　holes　and　in　situ　converted　to　MxBiyOz　(M　=　Co,　Mn,　Fe,　Pb)　nanobeads　that　act　as　co-catalysts　to　expedite　charge　transfer　and　enhance　photostability.　This　work　deepens　the　understanding　of　the　atomistic　photocorrosion　mechanism　of　BiOBr　photocatalysts　and　contributes　to　a　versatile　surface-targeted　photochemical　modification　approach　to　tackle　widespread　photocorrosion　challenges.　©　2025　Wiley-VCH　GmbH.

Keyword：

BiOBr photocatalysts co-catalysts metal cation intercalation photocatalysis photocorrosion

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[ 1 ] [Luo Z.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Luo Z.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Luo Z.]Fujian Provincial Key Laboratory of Ecology-Toxicological Effects & Control for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas (Putian University) Fujian Provincial University, Putian University, Putian, 351100, China
[ 4 ] [Zhang S.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Zhang S.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Ye X.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Ye X.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 8 ] [Xue S.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 9 ] [Xue S.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 10 ] [Chen J.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 11 ] [Chen J.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 12 ] [Chen J.]Fujian Provincial Key Laboratory of Ecology-Toxicological Effects & Control for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas (Putian University) Fujian Provincial University, Putian University, Putian, 351100, China
[ 13 ] [Huang M.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 14 ] [Huang M.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 15 ] [Yang C.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 16 ] [Yang C.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 17 ] [Zhang J.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 18 ] [Zhang J.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 19 ] [Hou Y.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 20 ] [Hou Y.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 21 ] [Yu Z.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 22 ] [Yu Z.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 23 ] [Wang X.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 24 ] [Wang X.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China

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Advanced Functional Materials

ISSN： 1616-301X

Year： 2025

1 8 . 5 0 0

JCR@2023

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