نتایج جستجو برای: organic zinc

تعداد نتایج: 272537  

Journal: :international journal of nano dimension 0
m. soltaninezhad department of chemistry, application of chemistry,university of imam hossein, tehran, iran. a. aminifar department of chemistry, application of chemistry,university of imam hossein, tehran, iran.

in the present study, comparison of  photocatalytic activity of nanostructures semiconductor zinc oxide (zno) was prepared using the different methods on the degradation of organic dye such as methylene blue that was investigated. previous studies have proved that such semiconductors can degrade most kinds of persistent organic pollutants, such as detergents, dyes, pesticides and volatile organ...

2013
Asad Jan Kyonoshin Maruyama Daisuke Todaka Satoshi Kidokoro Mitsuru Abo Etsuro Yoshimura Kazuo Shinozaki Kazuko Yamaguchi-Shinozaki

Biological Resources and Post-harvest Division, Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki 305–8686, Japan (A.J., K.M., D.T., K.N., K.Y.-S.); Laboratory of Plant Molecular Physiology (S.K., K.Y.-S.) and Laboratory of Analytical Chemistry (E.Y.), Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo 113–8657, Japan; Departme...

2015
KUNAL MONDAL

In recent years, photocatalytico oxidation processes with ultra violet (UV) radiation and semiconductor photocatalyst like titanium dioxide (TiO2) and zinc oxide (ZnO) have gained immense research interest as an effective wastewater purification method because of its efficacy in decomposing and mineralising the hazardous organic pollutants as well as the opportunity of utilizing the solar UV an...

Bijan Mombeni Godajdar, Ebrahim Niknam

In recent years, zinc oxid nanotubes have attracted much attention. The direct use of , zinc oxidnanotubes modified by SiO2 as recoverable catalysts for organic reactions is very rare. The catalystswere characterized by XRD. The average particle size of ZnO catalysts is 57 nm and there are highdensitydefects on nanotubes surfaces . A simple and efficient method for the imidazol derivativessynth...

2005
T. K. Goswami R. Bhar S. E. Jadhav S. N. Joardar

Zinc is ubiquitous in all living cells. Structural and catalytic properties of cellular enzymes are zinc dependent. Zinc deficiency leads to a variety of pathological abnormalities with immune impairment. It is an established fact that nutritional status contributes to overall immune response of individuals. Outcome of zinc deficiency on immune system is so drastic that it is difficult to conce...

A. Aminifar M. Soltaninezhad,

In the present study, comparison of  photocatalytic activity of nanostructures semiconductor zinc oxide (ZnO) was prepared using the different methods on the degradation of organic dye such as methylene blue that was investigated. Previous studies have proved that such semiconductors can degrade most kinds of persistent organic pollutants, such as detergents, dyes, pesticides and volatile organ...

2016
Julian Helfenstein Isabel Müller Roman Grüter Gurbir Bhullar Lokendra Mandloi Andreas Papritz Michael Siegrist Rainer Schulin Emmanuel Frossard

Zinc (Zn) nutrition is of key relevance in India, as a large fraction of the population suffers from Zn malnutrition and many soils contain little plant available Zn. In this study we compared organic and conventional wheat cropping systems with respect to DTPA (diethylene triamine pentaacetic acid)-extractable Zn as a proxy for plant available Zn, yield, and grain Zn concentration. We analyzed...

2003
Jung Yong Kim Allen J. Bard

An organic photovoltaic cell was fabricated, with the configuration ITO/zinc phthalocyanine (ZnPc)/N,N0-diheptyl-3,4,9,10perylenebiscarboximide (PTCDI-C7) (PTCDI)/Ga:In. PTCDI is a liquid crystal and acts as an electron acceptor organic material while ZnPc corresponds to a donor. The cell performance under illumination was examined with different organic layer thickness. A cell incorporating 25...

2013
Munirah Ramli Mohd Zobir Hussein Khatijah Yusoff

A new organic-inorganic nanohybrid based on zinc-layered hydroxide intercalated with an anti-inflammatory agent was synthesized through direct reaction of salicylic acid at various concentrations with commercially available zinc oxide. The basal spacing of the pure phase nanohybrid was 15.73 Å, with the salicylate anions arranged in a monolayer form and an angle of 57 degrees between the zinc-l...

2007
Shuo-Hsiu Chang Yu-Ling Wei H. Paul Wang

Soil sample from a site heavily contaminated with >10 wt.% zinc is sampled and extracted with aqueous solutions of ethylene diamine tetra-acetic cid (EDTA) that is a reagent frequently used to extract heavy metals in soil remediation. Three liquid/soil ratios (5/1, 20/1, and 100/1) were used n the extracting experiment. The molecular environment of the residual Zn in the EDTA-extract residues o...

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