Journal ArticleDOI
Removal of Mixed Pesticides from Drinking Water System Using Surfactant-Assisted Nano-TiO2
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TLDR
In this article, the degradation of mixed pesticides using UV-induced photocatalytic degradation of lindane (1α,2α,3β,4α,5α,6β-hexachlorocyclohexane), methyl parathion (O,O-dimethyl-O-4-nitrophenyl phosphorothioate), and dichlorvos (2,2-dichlorovinyl-O-,O-Odimethyl phosphate).Abstract:
The present study focused on the degradation of mixed pesticides using UV-induced photocatalytic degradation of lindane (1α,2α,3β,4α,5α,6β-hexachlorocyclohexane), methyl parathion (O,O-dimethyl-O-4-nitrophenyl phosphorothioate), and dichlorvos (2,2-dichlorovinyl-O-O-dimethyl phosphate). Different grades of TiO2 were prepared through the acid route (AR), alcohol route (AlR), and surfactant route (SR) and their photocatalytic activity were compared with commercially available Degussa P-25 TiO2. The rate of degradation of pesticides was high for TiO2 prepared through the SR compared to the other three catalysts. The crystalline structure and morphology of SR TiO2 was identified with scanning electron microscope, energy dispersive X-ray analyzer, UV, and transmission electron microscope analyses and was compared with that of Degussa P-25 TiO2. Degradation studies of individual as well as mixed pesticides were carried out. The intermediate formed during the photodegradation of methyl parathion, lindane, and dichlorvos were identified by gas chromatography–mass spectrometry analysis.read more
Citations
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Journal ArticleDOI
Nanomaterials for Sensing and Destroying Pesticides
Journal ArticleDOI
Nanocatalysts and other nanomaterials for water remediation from organic pollutants
Feng Lu,Didier Astruc +1 more
TL;DR: In this paper, the types and structures of organic pollutants, and the classes of nanomaterials and their application for the remediation of organic contaminants in water are systematically summarized.
Journal ArticleDOI
Kinetics and thermodynamics studies on the adsorption of Zn(II), Cd(II) and Hg(II) from aqueous solution using zinc oxide nanoparticles
TL;DR: In this article, the utilization of the zinc oxide nanoparticles (ZnO) as an adsorbent for the removal of Zn(II), Cd(II) and Hg(II)) ions from aqueous solution was investigated.
Journal ArticleDOI
Inorganic engineered nanoparticles in drinking water treatment: a critical review
Konstantinos Simeonidis,Stefanos Mourdikoudis,Stefanos Mourdikoudis,Efthimia Kaprara,Manassis Mitrakas,Lakshminarayana Polavarapu,Lakshminarayana Polavarapu +6 more
TL;DR: In this paper, a review summarizes the recent research in the field of inorganic engineered nanoparticles development with direct or potential interest for drinking water treatment. But, despite early encouraging results, nanoparticles meet a number of limitations to get promoted and become part of large-scale water treatment plants.
Journal ArticleDOI
Photocatalytic Degradation of Organic Pollutants: A Review
TL;DR: In this paper, the photocatalytic degradation of different kinds of organic pollutants; mainly surfactants, pesticides, dyes, phenols, chloro compounds, nitrogen containing compounds etc. Mechanisms of their degradation have also been discussed with hydroxyl and allied radicals as the main active oxidizing species.
References
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Highly Efficient Dye-Sensitized Solar Cells with a Titania Thin-Film Electrode Composed of a Network Structure of Single-Crystal-like TiO2 Nanowires Made by the “Oriented Attachment” Mechanism
TL;DR: In this study, single-crystal-like anatase TiO(2) nanowires were formed in a network structure by surfactant-assisted self-assembling processes at low temperature by applying the titania nanomaterials with network structure as the Titania thin film of dye-sensitized solar cells.
Journal ArticleDOI
Effects of calcination on the photocatalytic properties of nanosized TiO2 powders prepared by TiCl4 hydrolysis
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TL;DR: Problems of pesticide safety, regulation of pesticide use, use of biotechnology, and biopesticides, and use of pesticides obtained from natural plant sources such as neem extracts are some of the future strategies for minimizing human exposure to pesticides.
Journal ArticleDOI
Organochlorine exposure and risk of breast cancer
Annette Pernille Høyer,Philippe Grandjean,Torben Jørgensen,John W. Brock,Helle Bøggild Hartvig +4 more
TL;DR: Findings support the hypothesis that exposure to xeno-oestrogens may increase the risk of breast cancer.
Journal ArticleDOI
Semiconductor-sensitized photodegradation of dichlorvos in water using TiO2 and ZnO as catalysts
TL;DR: In this article, the photocatalytic degradation of an organophosphorous insecticide, dichlorvos, using two different photocatalyststs (TiO 2 and ZnO) has been investigated.
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