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One-step preparation of novel K+ and cyano-group co-doped crystalline polymeric carbon nitride with highly efficient H-2 evolution
Deng, Ping; Shi, Lei; Wang, Haihua; Qi, Wei
2020-09-20
Source PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume601
AbstractPolymeric carbon nitride (PCN) is a helpful photocatalyst in photocatalysis field, but low carrier separation efficiency and poor crystallinity resulted its ability unsatisfactory. Herein, we developed one step thermo-polymerization method to introduce crystallinity and doped engineering into PCN system. In detail, K+ and cyano-group co-doped crystalline PCN (KC-CCN) was successfully prepared through one-step thermo-polymerization method with the precursor of thiourea and potassium thiocyanate, and showed a highly crystal structure, stronger light harvesting and significantly electron-hole separation rate. When it was used for photocatalysis hydrogen production in presence of Pt as co-catalyst, the H-2 production rate of KC-CCN presented 16.8 times more than amorphous one. Furthermore, steady photocatalytic performance and chemical structure also maintained after several recycling experiments. Evidently, this paper affords a valid and simple method for the preparation of doped engineering modified crystalline PCN.
DOI10.1016/j.colsurfa.2020.125023
WOS IDWOS:000555839200009
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82521
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Deng, Ping,Shi, Lei,Wang, Haihua,et al. One-step preparation of novel K+ and cyano-group co-doped crystalline polymeric carbon nitride with highly efficient H-2 evolution[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2020,601.
APA Deng, Ping,Shi, Lei,Wang, Haihua,&Qi, Wei.(2020).One-step preparation of novel K+ and cyano-group co-doped crystalline polymeric carbon nitride with highly efficient H-2 evolution.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,601.
MLA Deng, Ping,et al."One-step preparation of novel K+ and cyano-group co-doped crystalline polymeric carbon nitride with highly efficient H-2 evolution".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 601(2020).
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