Preparation of Z-scheme 3D ZnO/Au/g-C3N4 heterostructures for the photoelectrochemical sensing of glutathione† - Details

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Three-dimensional　(3D)　ZnO　nanostructures　were　used　as　the　support　for　gold　nanoparticles　(AuNPs)　and　graphite　carbon　nitride　(g-C3N4)　to　form　a　Z-scheme　heterostructure　photoelectrode　(3D　ZnO/Au/g-C3N4)　in　this　work.　The　3D　structure　of　the　ZnO　nanorods　provided　a　directional　channel　for　fast　carrier　transport　and　abundant　reaction　sites.　ZnO　and　g-C3N4　formed　the　Z-scheme　heterojunction,　and　the　AuNPs　sandwiched　between　ZnO　and　g-C3N4　acted　as　the　mediators　and　greatly　reinforced　vector　electron　transfer　in　the　Z-scheme　heterojunction.　Then,　the　3D　ZnO/Au/g-C3N4　photoelectrode　was　applied　to　develop　a　sensitive　photoelectrochemical　(PEC)　biosensor　for　reduced　glutathione　(GSH)　detection.　GSH　can　act　as　a　hole　scavenger　and　reduce　the　recombination　of　photogenerated　electron–hole　pairs,　which　results　in　an　increase　in　the　photocurrent　of　the　system.　The　enhanced　current　showed　good　linearity　with　GSH　concentration　in　the　range　of　7–2000　μM,　and　the　system　had　a　limit　of　detection　of　2.3　μM.　The　proposed　biosensor　exhibited　good　selectivity　and　reproducibility,　obtaining　satisfactory　results　in　the　analysis　of　the　target　in　human　serum.　©　2023　The　Author(s).

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[ 1 ] [Li W.]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Department of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
[ 2 ] [Wang X.]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Department of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
[ 3 ] [Huang J.]Clinical Medicine Major, School of Medicine, Xiamen University, Fujian, Xiamen, 361005, China
[ 4 ] [Zhao M.]Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Fujian, Xiamen, 361005, China
[ 5 ] [Zhao M.]Computer Management Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Fujian, Xiamen, 361005, China
[ 6 ] [Yang J.]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Department of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
[ 7 ] [Luo F.]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Department of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
[ 8 ] [Qiu B.]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Department of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
[ 9 ] [Wang J.]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Department of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
[ 10 ] [Lin Z.]Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Department of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China

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Preparation of Z-scheme 3D ZnO/Au/g-C3N4 heterostructures for the photoelectrochemical sensing of glutathione
2023，SENSORS & DIAGNOSTICS

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Sensors and Diagnostics

ISSN： 2635-0998

Year： 2023

Issue： 3

Volume： 2

Page： 699-706

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WoS CC Cited Count： 0

SCOPUS Cited Count： 2

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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