Ag(I)-bovine serum albumin hydrosol-mediated formation of Ag3PO4/reduced graphene oxide composites for visible-light degradation of Rhodamine B solution

J Colloid Interface Sci. 2014 Mar 1:417:293-300. doi: 10.1016/j.jcis.2013.11.045. Epub 2013 Nov 23.

Abstract

A cost-effective Ag(I)-bovine serum albumin (BSA) supramolecular hydrosol strategy was utilized to assemble Ag3PO4 nanospheres onto reduced graphene oxide (rGO) sheets. The obtained composites were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, UV-vis absorption spectroscopy and Fourier transform infrared spectroscopy. Compared with the pure Ag3PO4 crystals and Ag3PO4 particles prepared with Ag(I)-BSA hydrosol as precursor, the Ag3PO4/rGO composites obtained with different content of graphene oxide indicated improved visible-light-driven photocatalysis activity for the decomposition of Rhodamine B aqueous solution. The results pointed to the possibility of synthesizing graphene-based photocatalysts by metal ion-BSA hydrosol.

Keywords: Ag(3)PO(4); Ag(I)-bovine serum albumin hydrosol; Photocatalysis; Reduced graphene oxide.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Catalysis
  • Cattle
  • Environmental Pollutants / chemistry*
  • Graphite / chemistry*
  • Hydrogels
  • Kinetics
  • Light
  • Microscopy, Electron, Scanning
  • Oxides
  • Phosphates / chemistry*
  • Photoelectron Spectroscopy
  • Photolysis
  • Rhodamines / chemistry*
  • Serum Albumin, Bovine / chemistry*
  • Silver Compounds / chemistry*

Substances

  • Environmental Pollutants
  • Hydrogels
  • Oxides
  • Phosphates
  • Rhodamines
  • Silver Compounds
  • Serum Albumin, Bovine
  • Graphite
  • rhodamine B
  • silver phosphate