Study of Catalytic Capacity of ZnO Nano Particles by Blue Methylen

Abstract

ZnO nanostructures were prepared by hydrothermal method starting from Zn(CH₃COO)₂, citric acid and NaOH. SEM images indicated that the samples have a spherical shape consisting of small wires with a diameter of about 50 nm. It is seen that the samples have large surface areas and will be attractive for applications like catalyst, catalyst sensors and solar cells. In this report, photocatalytic capacity of ZnO nanoparticles was investigated by time-dependent absorption spectra of 10 mg/L blue methylen solution. The results show that catalysis was almost complete after 120 minutes. The effects of pH value on the morphology and photoluminescence properties of the samples have also been investigated. [DOI: 10.1380/ejssnt.2011.512]