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S-doped graphene quantum dots as nanophotocatalyst for visible light degradation
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作者 Biting Huang Jingbo He +5 位作者 Shiyue Bian Chenjuan Zhou Zhiyang Li fengna xi Jiyang Liu xiaoping Dong 《Chinese Chemical Letters》 SCIE CAS CSCD 2018年第11期1698-1701,共4页
Graphene quantum dots (GODs) recently emerge as the new and appealing nanophotocatalyst because of their low-cost, environmental compatibility and the ability to facilitate the charge migration and prolong the charg... Graphene quantum dots (GODs) recently emerge as the new and appealing nanophotocatalyst because of their low-cost, environmental compatibility and the ability to facilitate the charge migration and prolong the charge lifetimes. In this work, a visible photocatalyst of S-doped graphene quantum dots (S-GQDs) was prepared by a facile hydrothermal synthesis using 1,3,6-trinitropyrene and Na2S as precursors. The well crystallization and monodispersity as well as the chemical environment of S-GQDs were characterized by transmission electron microscopy, atom force microscopy and X-ray photoelectron spectrum. A superior photocatalytic performance of S-GQDs was demonstrated for degradation of basic fuchsin under visible light irradiation. Furthermore, the possible photocatalytic mechanism was proposed based on the trapping experiments of active species. 展开更多
关键词 Graphene quantum dots S-doped Nanophotocatalyst Visible light degradation Basic fuchsin
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