نتایج جستجو برای: photodegradation

تعداد نتایج: 2766  

Journal: :Journal of hazardous materials 2009
L Martínez Nieto Gassan Hodaifa M S Casanova

Virgin olive oil is one of the essential products for the economy of Mediterranean countries. The possible residues of pesticides that can reach the oil may be a risk to public health, thus causing the prohibition of its marketing by the health authorities. This paper is a preliminary study on photochemical degradation of pesticide residues using a small-scale prototype (1L capacity). The metho...

2015
Ahmad Alshammari Abdulaziz Bagabas

Rhodamine B (RB) is a toxic dye used extensively in textile industry, which must be remediated before its drainage to environment. In the present study, supported gold nanoparticles on commercially available titania and zincite were successfully prepared and then their activity on the photodegradation of RB under UV A light irradiation were evaluated. The synthesized photocatalysts were charact...

2008
Changqing Jin

The photodegradation of a 1:1 blend of poly (caprolactone) and poly(vinyl chloride) has been studied by following carbon dioxide emission during UV exposure. Similar measurements were made on poly(caprolactone) and poly(vinyl chloride) homopolymers prepared and irradiated in the same way. It was found that the blend gave lower CO2 emission than either of the two homopolymers, indicating that th...

Journal: :nanochemistry research 2016
mohamad mohsen momeni mir ghasem hosseini

to improve the photo-catalytic degradation of salicylic acid, we reported the fabrication of ordered tio2 nanotube arrays by a simple and effective two-step anodization method and then these tio2 nanotubes treated in a methanol solution under uv light irradiation. the tio2 nanotubes prepared in the two-step anodization process showed better photo-catalytic activity than tio2 nanotubes prepared ...

Journal: :international journal of nano dimension 0
azar bagheri gh. department of chemistry, center tehran branch, islamic azad university, tehran, iran. v. ashayeri department of chemistry, center tehran branch, islamic azad university, tehran, iran. k. mahanpoor department of chemistry, arak branch, islamic azad university, arak, iran.

in this paper cufe2o4, nanocrystalline powders were prepared. also, the supported cu ferrite was obtained by impregnation of the supports with cu and fe nitrates solutions, for calcination temperature 450 ºc. the samples were characterized by x-ray powder diffraction (xrd) and fourier transform-infrared spectroscopy (ft-ir). in this investigation photocatalytic degradation of acid red 206 in wa...

Journal: :DEStech Transactions on Materials Science and Engineering 2017

Journal: :Journal of Applied Polymer Science 1960

Journal: :Journal of Pesticide Science 1982

2010
Natsuko Kajiwara Hidetaka Takigami

Introduction We are exposed to brominated flame retardants (BFRs) in daily life through multiple media including food products, air, and dusts; direct exposure to BFRs from treated goods is also of considerable importance. However, very little is known about behavior of BFRs in the consumer products. Since textile products such as curtains, carpet, and seat covers have high specific surface are...

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