Sonication assisted preparation of graphene oxide/graphitic-C3N4 nanosheet hybrid with reinforced photocurrent for photocatalyst applications
2014; Royal Society of Chemistry; Volume: 43; Issue: 17 Linguagem: Inglês
10.1039/c3dt53106f
ISSN1477-9234
AutoresKai Dai, Luhua Lu, Qi Liu, Guangping Zhu, Xiao‐Qin Wei, Jin Bai, Lingling Xuan, Heng Wang,
Tópico(s)Gas Sensing Nanomaterials and Sensors
ResumoGraphitic C3N4 (g-C3N4), as an advanced metal free photocatalyst, is known to be poorly exfoliated and dispersed in water from its powder form which has a layered structure, the intrinsic plane structure is not destroyed, and this has largely limited its application. In this work, we report our progress on successful sonication exfoliation of g-C3N4 nanosheets in graphene oxide (GO) aqueous solution. By making use of the substrate character of GO, g-C3N4 nanosheets of unvaried intrinsic structure were exfoliated and anchored on the GO surface, resulting in a GO/g-C3N4 hybrid. Moreover, the photocurrent of the hybrid was largely reinforced at the optimal weight fraction of GO. As a result, the corresponding photocatalytic performance of the hybrid with optimized photocurrent character was largely improved.
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