Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 14, Issue 23, Pages 4193-4200Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201901217
Keywords
hydrogen generation; nickel; photocatalysis; photodeposition; water splitting
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Funding
- National Natural Science Foundation of China [21676123, 21575052]
- Natural Science Foundation of Jiangsu Province [BK20161127]
- National First-class Discipline Program of Food Science and Technology [JUFSTR20180301]
- Fundamental Research Funds for the Central Universities [JUSRP51623A]
- Opening Foundation of Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals from Shandong Normal University [ZDSYS-KF201504]
- MOE & SAFEA for the 111 Project [B13025]
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Photodeposition has been widely used as a mild and efficient synthetic method to deposit co-catalysts. It is also worth studying how to synthesize non-noble metal photocatalysts with uniform dispersion. Different synthetic conditions in photodeposition have a certain influence on particle size distribution and photocatalytic activity. Therefore, we designed experiments to prepare the inexpensive composite photocatalyst Ni(OH)(2)/g-C3N4 by photodeposition. The Ni(OH)(2) co-catalysts disperse uniformly with particle sizes of about 10 nm. The photocatalytic hydrogen production rate of Ni(OH)(2)/g-C3N4 reached about 19 mmol g(-1) h(-1), with the Ni(OH)(2) deposition amount about 1.57 %. During 16 h stability testing, the rate of hydrogen production did not decrease significantly. The composite catalyst also revealed a good hydrogen production performance under sunlight. The Ni(OH)(2) co-catalyst enhanced the separation ability of photogenerated carriers, which was proved by surface photovoltage and fluorescence analysis.
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