Photocatalytic degradation of agricultural N-heterocyclic organic pollutants using immobilized nanoparticles of titania
| Autor: | Mokhtar Arami, Kamaladin Gharanjig, Niyaz Mohammad Mahmoodi, Nargess Yousefi Limaee |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Dihydropyridines
Environmental Engineering Diazinon Photochemistry Ultraviolet Rays Health Toxicology and Mutagenesis Ion chromatography Metal Nanoparticles Catalysis Water Purification Neonicotinoids chemistry.chemical_compound Imidacloprid parasitic diseases Environmental Chemistry Water pollution Waste Management and Disposal Titanium Pollutant Aqueous solution Azirines Chemical oxygen demand Imidazoles Mineralization (soil science) Nitro Compounds Pollution chemistry Environmental chemistry Agrochemicals Water Pollutants Chemical |
| Zdroj: | Journal of Hazardous Materials. 145:65-71 |
| ISSN: | 0304-3894 |
| DOI: | 10.1016/j.jhazmat.2006.10.089 |
| Popis: | Degradation and mineralization of two agricultural 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. The effects of operational parameters such as H(2)O(2) and inorganic anions (NO(3)(-), Cl(-) and SO(4)(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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect