Gold-loaded graphene oxide/PDPB composites for the synchronous removal of Cr(VI) and phenol

doi:10.1016/S1872-2067(17)62933-4

Abstract

Abstract:

The construction of novel inorganic-organic hybrid nanomaterials for synchronous photocatalytic removal of heavy metal ions and organic pollutants has received significant attention. We successfully synthesized gold-loaded graphene oxide/PDPB (polymer poly(diphenylbutadiyne)) composites (Au-GO/PDPB) through a facile mechanical agitation and photoreduction method. The composites were characterized by XPS and TEM images, which confirmed the presence of GO and Au nanoparticles on the PDPB. The as-prepared Au-GO/PDPB composites displayed enhanced photocatalytic activity compared with that of pure PDPB for the synchronous photoreduction of hexavalent chromium (Cr(VI)) and photo-oxidation of phenol. We also determined the optimal loading mass of GO and Au nanoparticles on the PDPB; the Au₁-GO2/PDPB (2.0 wt% GO and 1.0 wt% Au) composite displayed the best photocatalytic activity among all the catalysts. Our study provides a facile way to prepare inorganic-organic composites for the synchronous photocatalytic removal of heavy metal ions and organic pollutants.

Key words: Photocatalysis, Heavy metal ion, Organic pollutant, Polymer poly(diphenylbutadiyne), Synchronous removal

Jun Liu, Wenzhang Fang, Yuhang Wang, Mingyang Xing, Jinlong Zhang. Gold-loaded graphene oxide/PDPB composites for the synchronous removal of Cr(VI) and phenol[J]. Chinese Journal of Catalysis, 2018, 39(1): 8-15.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(17)62933-4

https://www.cjcatal.com/EN/Y2018/V39/I1/8

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