Ultra-thin carbon doped TiO2 nanotube arrays for enhanced visible-light photoelectrochemical water splitting - Details

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TiO2　has　been　widely　employed　as　a　photocatalyst　for　water　splitting　owing　to　its　high　activity,　low　cost,　abundance,　safety,　and　stability.　However,　the　further　utilization　of　TiO2　is　still　confined　to　the　wide　band　gap　and　the　rapid　recombination　speed.　Carbon　has　metallic　conductivity　and　a　large　electron　storage　capacity,　which　can　help　to　absorb　photoexcited　electrons　and　enhance　charge　separation　and　transfer.　Herein,　we　fabricated　the　ultra-thin　carbon-doped　TiO2　nanotube　arrays　(TNTAs).　The　as-prepared　UTC-doped　TiO2@TNT　exhibited　high　photoelectrochemical　(PEC)　activity,　realizing　a　high　H2　evolution　rate　up　to　41.3　μmol　cm-2　h−1　(AM　1.5G)　and　1.3　μmol　cm-2　h−1　(visible　light),　which　exhibit　significantly　narrowed　band　gaps　and　decreased　charge　resistance.　Using　ultra-thin　carbon　doping　in　TiO2　nanotube　arrays　opens　up　a　new　avenue　for　optimizing　photocatalysts　for　PEC　water　splitting.　©　2023

Keyword：

Energy gap Hydrogen production Nanotubes Photoelectrochemical cells Titanium dioxide

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[ 1 ] [Tong, Mei-Hong]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 2 ] [Tong, Mei-Hong]College of Chemistry, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 3 ] [Tong, Mei-Hong]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
[ 4 ] [Wang, Tian-Ming]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 5 ] [Wang, Tian-Ming]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
[ 6 ] [Lin, Shi-Wei]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 7 ] [Lin, Shi-Wei]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
[ 8 ] [Lin, Shi-Wei]School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou; 341000, China
[ 9 ] [Chen, Rui]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 10 ] [Chen, Rui]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
[ 11 ] [Chen, Rui]School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou; 341000, China
[ 12 ] [Jiang, Xia]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 13 ] [Jiang, Xia]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
[ 14 ] [Chen, Yan-Xin]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 15 ] [Chen, Yan-Xin]College of Chemistry, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 16 ] [Chen, Yan-Xin]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
[ 17 ] [Chen, Yan-Xin]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou; 350108, China
[ 18 ] [Lu, Can-Zhong]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 19 ] [Lu, Can-Zhong]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
[ 20 ] [Lu, Can-Zhong]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou; 350108, China

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Source ：

Applied Surface Science

ISSN： 0169-4332

Year： 2023

Volume： 623

6 . 3

JCR@2023

6 . 3 0 0

JCR@2023

ESI HC Threshold：49

JCR Journal Grade：1

CAS Journal Grade：2

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WoS CC Cited Count：

SCOPUS Cited Count： 22

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

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