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Journal of Materials Science
Erschienen in: Journal of Materials Science 6/2019

26.11.2018 | Energy materials

Sulfur-doped porous graphitic carbon nitride heterojunction hybrids for enhanced photocatalytic H2 evolution

verfasst von: Hengfei Qin, Wenhua Lv, Jirong Bai, Yue Zhou, Yingpin Wen, Qinting He, Jianghong Tang, Liangbiao Wang, Quanfa Zhou

Erschienen in: Journal of Materials Science | Ausgabe 6/2019

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Abstract

Graphitic carbon nitride (g-C3N4) is considered as an attractive, efficient and newly generated photocatalyst material owing to its distinct properties such as metal free, suitable band gap and high physicochemical stability. Nevertheless, the photocatalytic activity of pure g-C3N4 was limited by the fast recombination rate of photoinduced electron–hole pairs and relatively low specific surface area. In this study, we provide a new prospect to overcome the problem by using another suitable precursor urea-assisted copolymerization with thiourea which is expected to optimize the process of thermal condensation, inhibit agglomeration and improve the specific surface area; meanwhile, the formed isotype heterogeneous junction effectively inhibits charge carrier recombination. The formed g-C3N4 isotype heterojunction photocatalyst manifested significant improvement photocatalytic hydrogen production than the single and pure g-C3N4 sample. This significant enhanced photocatalytic performance is mainly ascribed to inhibited recombination, enriched active site and enlarged specific surface area.
Vorheriger Artikel Porous carbon-coated ball-milled silicon as high-performance anodes for lithium-ion batteries
Nächster Artikel Uniform growth of NiCo2S4 nanoflakes arrays on nickel foam for binder-free high-performance supercapacitors

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Metadaten
Titel
Sulfur-doped porous graphitic carbon nitride heterojunction hybrids for enhanced photocatalytic H2 evolution
verfasst von
Hengfei Qin
Wenhua Lv
Jirong Bai
Yue Zhou
Yingpin Wen
Qinting He
Jianghong Tang
Liangbiao Wang
Quanfa Zhou
Publikationsdatum
26.11.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 6/2019
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-3168-5

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