Nano sized ZnO composites: Preparation, characterization and application as photocatalysts for degradation of AB92 azo dye
作者： Neda Mohaghegh , Mahboubeh Tasviri , Esmail Rahimi , Mohammad Reza Gholami
DOI: 10.1016/J.MSSP.2013.12.023
关键词:
摘要: Abstract ZnO and Mordenite zeolite (MOR) nanoparticles were prepared by precipitation process using ultrasonic irradiation hydrothermal method, respectively. Supported catalysts the effect of different supports on photocatalytic activity was investigated. All samples characterized X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier Transform-Infra Red Spectroscopy (FTIR), UV–vis spectroscopy (UV–vis) BET surface area technique. The synthesized elucidated photo-oxidation Acid Blue 92 (AB92) as a hazardous pollutant under UV light. parameters such catalyst concentration, initial dye pH, amount loaded nanocomposites have been examined yield rate degradation process. photodegradation results AB92 in aqueous medium revealed that nanocomposite mordenite exhibit much higher than other pure ZnO. It found type support plays an important role oxidation significantly improved Chemical Oxygen Demand (COD) for solutions at regular intervals gave good idea about mineralization dye.
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