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author：

Chen, J. (Chen, J..) [1] | Luo, X. (Luo, X..) [2] | Fan, A. (Fan, A..) [3] | Zhu, W. (Zhu, W..) [4] | Chen, K. (Chen, K..) [5] | Qiu, Q. (Qiu, Q..) [6] | Bi, L. (Bi, L..) [7] | Yang, K. (Yang, K..) [8] | Liang, T. (Liang, T..) [9]

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Scopus

Abstract：

The　development　of　full-spectrum　composite　photocatalysts　is　a　promising　approach　to　enhance　solar　energy　utilization.　In　this　study,　the　FeTiO3/NaYF4:　Yb,　Dy,　Nd　(FNYDN)　upconversion　composite　photocatalysts　were　successfully　synthesized　via　the　hydrothermal　method.　The　upconversion　effect　of　rare　earth　ions　on　near-infrared　light　is　utilized　to　broaden　the　absorption　range　of　visible　light,　thereby　further　improving　the　efficiency　of　solar　energy　utilization.　Compared　to　pure　FeTiO3　(80.83　%)　and　NaYF4　(37.76　%),　the　0.75　FNYDN　(93.51　%)　samples　showed　significantly　higher　photo-Fenton　activity　for　degradating　antibiotics　under　visible-near　infrared　(Vis-NIR)　light.　The　upconversion　luminescence　at　980　nm　and　visible　near-infrared　(UV-Vis-NIR)　spectrophotometer　indicate　that　the　incorporation　of　NaYF4:　Yb,　Dy,　Nd　(NYDN)　can　broaden　the　utilization　of　near　infrared　light,　enhancing　the　degradation　activity　of　organic　pollutants　under　the　NIR-light　irradiation.　Particularly,　in　the　NIR　light　condition,　the　degradation　efficiency　of　TCH　by　0.75　FNYDN　can　go　up　to　86.72　%　due　to　upconversion　function　of　rare　earth　ions.　Besides,　several　characterizations　suggest　that　the　formation　of　Z-Scheme　heterojunction　between　FeTiO3　and　NYDN　enables　effective　separation　and　transfer　of　photocarriers.　Thus,　the　enhanced　photo-Fenton　activity　of　the　0.75　FNYDN　heterojunction　can　be　attributed　to　the　synergistic　effects　of　upconversion　and　the　Z-Scheme　heterojunction.　This　experimental　investigation　provides　a　sound　basis　for　the　preparation　of　efficient　upconversion　composite　photocatalysts.　©　2025　Elsevier　B.V.

Keyword：

FeTiO3 NaYF4 Photo-Fenton catalyst Upconversion Z-Scheme heterojunction

Community：

  • [ 1 ] [Chen J.]Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou, 341000, China
  • [ 2 ] [Luo X.]Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou, 341000, China
  • [ 3 ] [Luo X.]School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Jiangxi, Ganzhou, 341000, China
  • [ 4 ] [Fan A.]Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou, 341000, China
  • [ 5 ] [Zhu W.]Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou, 341000, China
  • [ 6 ] [Chen K.]Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou, 341000, China
  • [ 7 ] [Qiu Q.]Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou, 341000, China
  • [ 8 ] [Bi L.]College of Chemical Engineering, Huaiyin Institute of Technology, Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaian, 223003, China
  • [ 9 ] [Yang K.]School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Jiangxi, Ganzhou, 341000, China
  • [ 10 ] [Yang K.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 11 ] [Liang T.]Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou, 341000, China

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Source ：

Journal of Alloys and Compounds

ISSN： 0925-8388

Year： 2025

Volume： 1036

5 . 8 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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