Data for: Phosphotungstate-sandwiched between cerium oxide and gold nanoparticles exhibit enhanced catalytic reduction of 4-nitrophenol and peroxidase enzyme-like activities

Published: 20-11-2020| Version 1 | DOI: 10.17632/jdxf2pj489.1
NISHA Yadav,
Foram Shah


In this research work, we have synthesized and characterized gold decorated cerium oxide nanoparticles. Phosphotungstic acid (PTA) was utilized for the reduction of gold nanoparticles on the lattice surface of cerium oxide nanoparticles. The synthesized nanocomposite showed enhanced peroxidase like activity as compared to independent controls. Additionally, the composite showed faster degradation of 4-nitrophenol than either nanoceria or PTA-AuNPs. electron transfer ability of PTA molecules leads to the excellent improvement in the catalytic performance of nanoceria-PTA-AuNPs composite. The obtained improved catalytic activity might be due to the rapid electron transfer from nanoceria to AuNPs, where metal nanoparticles act as electron sink, mediated by PTA. Thus, the developed nanoceria-PTA-AuNPs nanocomposites are expected to have wide range of uses in mimicking other enzyme-like activities, photocatalysis, organic pollutant degradation, and other biomedical applications.