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Highly Polymerized Wine-Red Carbon Nitride to Enhance Photoelectrochemical Water Splitting Performance of Hematite
Tan, Haotian1; Peng, Wei1; Zhang, Tao1; Han, Yonghuan1; Yin, Lichang2; Si, Wenping1; Liang, Ji1,3; Hou, Feng1
Corresponding AuthorSi, Wenping(wenping.si@tju.edu.cn) ; Liang, Ji(liangji@tju.edu.cn)
2021-06-24
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume125Issue:24Pages:13273-13282
AbstractPolymeric carbon nitride photocatalyst has attracted much attention due to its visible light response and high chemical stability. However, bulk carbon nitride has a wide band gap and low polymerization, limiting its photocatalytic performance for water splitting. Synthesizing highly polymerized carbon nitride with a narrow band gap still remains challenging. Herein, we propose an ionothermal protocol using supramolecular precursors to fabricate highly polymerized wine-red carbon nitride (WRCN) nanosheets. Both theoretical and experimental investigations revealed that the supramolecular precursor with a high C:N ratio leads to an upward shift of the valence band edge, while the ionothermal synthesis promotes a high polymerization degree, leading to a narrow band gap of 1.82 eV for WRCN. Benefiting from enhanced light absorption and charge separation efficiency, WRCN-loaded hematite photoanode exhibits a much higher photocurrent density than both pristine hematite and bulk carbon nitride decorated hematite. This work may provide a novel strategy to manipulate the electronic structures of carbon nitrides for enhanced photoelectrochemical performances.
Funding OrganizationNational Natural Science Foundation of China ; Australian Research Council (ARC)
DOI10.1021/acs.jpcc.1c02342
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[22002107] ; National Natural Science Foundation of China[21905202] ; National Natural Science Foundation of China[21905144] ; Australian Research Council (ARC)[DP200100365]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000668350500019
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160004
Collection中国科学院金属研究所
Corresponding AuthorSi, Wenping; Liang, Ji
Affiliation1.Tianjin Univ, Minist Educ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Univ Wollongong, Australian Inst Innovat Mat, Inst Superconducting & Elect Mat, North Wollongong, NSW 2500, Australia
Recommended Citation
GB/T 7714
Tan, Haotian,Peng, Wei,Zhang, Tao,et al. Highly Polymerized Wine-Red Carbon Nitride to Enhance Photoelectrochemical Water Splitting Performance of Hematite[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2021,125(24):13273-13282.
APA Tan, Haotian.,Peng, Wei.,Zhang, Tao.,Han, Yonghuan.,Yin, Lichang.,...&Hou, Feng.(2021).Highly Polymerized Wine-Red Carbon Nitride to Enhance Photoelectrochemical Water Splitting Performance of Hematite.JOURNAL OF PHYSICAL CHEMISTRY C,125(24),13273-13282.
MLA Tan, Haotian,et al."Highly Polymerized Wine-Red Carbon Nitride to Enhance Photoelectrochemical Water Splitting Performance of Hematite".JOURNAL OF PHYSICAL CHEMISTRY C 125.24(2021):13273-13282.
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