Journal ArticleDOI
Removal of mixed pesticides from drinking water system by photodegradation using suspended and immobilized TiO2.
TLDR
During mixed pesticides degradation, the degradation pattern was not similar to that of single pesticide and there was not much change in the rates of degradation in both suspended and immobilized TiO2 systems irrespective of the pesticide.Abstract:
Lindane (1α, 2α, 3β, 4α, 5α, 6β-hexachloro cyclohexane), methyl parathion (O,O-dimethyl-O-4-nitrophenyl phosphorothioate) and dichlorvos (2,2-dichlorovinyl-O-O-dimethyl phosphate) are removed from water individually and as a mixture by photo degradation using suspended and immobilized forms of TiO2 (Degussa P-25). Studies were conducted to optimize the coating thickness of immobilized photo catalyst. The rate of degradation of pesticides was compared in both suspended and immobilized TiO2 systems. Degradation studies of mixed pesticides were carried out with low concentrations (1.0 and 2.5 mg/L) of pesticides. Only three intermediate byproducts such as methyl paraoxon, O,O,O-trimethyl phosphonic thionate and p-nitrophenol were observed during the methyl parathion degradation in suspended, immobilized TiO2 systems and mixed pesticides degradation studies. At the end of the reaction methyl parathion and its by-products were completely degraded. During lindane degradation hexachloro cyclohexane, pentachloro ...read more
Citations
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Dissertation
Photocatalytic Degradation of Organic Pollutants in Wastewater
TL;DR: In this paper, the authors present experimental results on the treatment of a synthesized wastewater by means of photocatalytic Advanced Oxidation Process (AOPs) constituted by a combination of a single oxidant.
Book ChapterDOI
Smart barrier membranes for protective clothing
TL;DR: In this article, the authors proposed an adaptive membrane that rapidly adjusts in a reversible way to environmental conditions and threat intensity, in order to provide responsive and self-decontaminating capabilities.
Journal ArticleDOI
A review on the capability of zinc oxide and iron oxides nanomaterials, as a water decontaminating agent: adsorption and photocatalysis
TL;DR: In this article , the authors focused on the recent work done using zinc and iron oxides nanomaterials as adsorbent for the removal of different heavy metals and photocatalysts for the mineralization of various pesticides.
Journal ArticleDOI
Fabrication of Pt-Pd@ITO grown heterogeneous nanocatalyst as efficient remediator for toxic methyl parathion in aqueous media
Ali Muhammad Mahar,Aamna Balouch,Farah Naz Talpur,Abdullah,Pirah Panah,Raj Kumar,Ameet Kumar,Abdul Hameed Pato,Dadu Mal,Sagar Kumar,Akrajas Ali Umar +10 more
TL;DR: The supported Pt-Pd bimetallic nanoc atalyst on ITO displayed many advantages over conventional methods for degradation of methyl parathion pesticide, such as high percent degradation, short reaction time, small amount of nanocatalyst, and multitime reusability.
Journal ArticleDOI
Bacteriostatic Effect of CoO-TiO2 on Listeria Monocytogenes by the Presence of the Co-Catalytic CoO Nanoparticles
Sujata A. Sirsat,Oscar Hecht,Carlos Mirabal,David A. Pepe,Wenli Yang,Zahra H. Mohammad,Viktor G. Hadjiev,Jack A. Neal,Francisco C. Robles Hernandez +8 more
TL;DR: In this article, the antimicrobial properties of CoO-TiO2 tested against Listeria monocytogenes, a harmful foodborne pathogenic microorganism, were investigated.
References
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