NDLI: Enhanced CO2 photocatalytic reduction on alkali-decorated graphitic carbon nitride

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Enhanced CO2 photocatalytic reduction on alkali-decorated graphitic carbon nitride

Content Provider	Semantic Scholar
Author	Sun, Zhuxing Fischer, Julia Melisande Theresa Agatha Li, Qian Hu, Jing Tang, Qijun Wang, Haiqiang Wu, Zhongbiao Hankel, Marlies Searles, Debra J. Wang, Lianzhou
Copyright Year	2017
Abstract	Abstract In this work, visible-light photocatalytic reduction performance of carbon dioxide (CO 2 ) on graphitic carbon nitride (g-C 3 N 4 ) was significantly promoted by the decoration of potassium hydroxide (KOH) on g-C 3 N 4 . More importantly, the role of KOH was thoroughly discussed via various characterizations, control experiments and density functional theory (DFT) calculations. It was found that KOH decoration did not result in any significant difference regards to the morphology, elemental states, BET surface area and light adsorption of g-C 3 N 4 except a drastically enhanced CO 2 adsorption capacity. The promotion effect of KOH on g-C 3 N 4 was mainly contributed by the hydroxide ion (OH − ) functioning as both a hole accepter and a driving force to keep a dynamically stable amount of H 2 CO 3 (probably the major form of CO 2 to be reduced) on the surface of the catalyst. Moreover, the different extents of influence of NaOH and KOH on g-C 3 N 4 were revealed and further explained using computational results. This study supplements current understanding on alkali-promoted photocatalytic processes and provides new insights into the mechanism of CO 2 photocatalytic reduction.
Starting Page	146
Ending Page	155
Page Count	10
File Format	PDF HTM / HTML
DOI	10.1016/j.apcatb.2017.05.064
Volume Number	216
Alternate Webpage(s)	https://espace.library.uq.edu.au/data/UQ_647248/UQ647248_OA.pdf?Expires=1555680122&Key-Pair-Id=APKAJKNBJ4MJBJNC6NLQ&Signature=RNZhNOVHZXc2tKykd4DIV3XBcaOG92hktS3iorefKraZng3ZavPfHbKti~b-12R4eNqYe9yvQAsWhMDYyI3NdqOblvpTEfA1QQVlmql7O8wv~A6vJuAXjRAbr1TfckqEsUebSK~m37~RbpSEZ6G~T-J85Rx0~D3-LYs2UKEYWFLPvQjlEMBIdm0wZoZ80MIP~GPkm5kzv6LR9~HvvzjpEXfIC7QdMY~2fLnLrXHAi6U~ksa3ZUZ1SrQnEBTtZMepQu8DzqUFyMbeB~iSCbFpf-26g-Tz9-fdDOd0IeDnz2mjUTVHQikYHPg-LXcL0Fo4r0JRsx4IoWSExppIZEHn6A__
Alternate Webpage(s)	https://doi.org/10.1016/j.apcatb.2017.05.064
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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