期刊
CHEMISTRYSELECT
卷 2, 期 31, 页码 9947-9952出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201702103
关键词
g-C3N4 nanosheets; Ag NPs/g-C3N4 composites; photocatalytic performance; methylene blue
资金
- National Science Foundation of China [51572114, 51702129]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX17_1768]
Exfoliating bulk g-C3N4 into its nanosheets attracts great interests due to their amazing application in photocatalytic area, especially supported with silver nanoparticles (Ag NPs). Herein, a facile acid-assisted method was firstly developed to exfoliate the bulk g-C3N4 into g-C3N4 nanosheets using concentrated hydrochloric acid. Ag NPs with average diameter of similar to 40 nm were coated into g-C3N4 nanosheets through electrostatic absorbance effect. By adjusting the feeding ratios between Ag NPs and g-C3N4, the Ag NPs/g-C3N4 composites with tunable Ag NPs can be achieved. Results illuminate that after coated with Ag NPs, photocatalytic performance of the Ag NPs/g-C3N4 composites is enhanced significantly under visible light irradiation compared with that of the pure g-C3N4. Furthermore, with an appropriate mass ratio, the Ag NPs/g-C3N4 (6: 5) composite exhibits the best photocatalytic activity and favorable stability due to the relatively higher Ag NPs loading.
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