سال انتشار: ۱۳۸۵

محل انتشار: ششمین همایش ملی دانشجویی مهندسی شیمی و پنجمین همایش ملی دانشجویی مهندسی نفت

تعداد صفحات: ۱۴

نویسنده(ها):

نیازمحمد محمودی – Environmental Science and Engineering Department, Iran Color Research Center, Tehra
مختار آرامی – Textile Engineering Department
نرگس یوسفی لیمایی – Environmental Science and Engineering Department , Iran Color Research Center, Tehran

چکیده:

Degradation and mineralization of two N-heterocyclic aromatic organic pollutants
(Diazinon and Imidacloprid as N-heterocyclic aromatics) in aqueous solution by
nanophotocatalysis using immobilized titania nanoparticles were investigated. Insecticides,
Diazinon and Imidacloprid, are persistent pollutants in agricultural soil and watercourses. A
simple and effective method was developed to immobilization of titania nanoparticles. UV-
Vis, ion chromatography (IC) and chemical oxygen demand (COD) analyses were employed.
– 2- – The effects of operational parameters such as H
Oand inorganic anions (NO3- , Cl2- and SO4 2- )
were investigated. The mineralization of Diazinon and Imidacloprid was evaluated by
monitoring of the formed inorganic anions. The selected pollutants are effectively degraded
following first order kinetics model. Results show that the nanophotocatalysis using
immobilized titania nanoparticle is an effective method for treatment Diazinon and
Imidacloprid from contaminated water.