نتایج جستجو برای: reactive red 4

تعداد نتایج: 1563081  

Journal: :international journal of nano dimension 0
f. oshani department of engineering, islamic azad university, north branch, tehran, iran. s. rasouli department of nanomaterials and nanotechnology, institute for color science and technology. r. marandi department of engineering, islamic azad university, north branch, tehran, iran. m. keramati farhoud department of nanomaterials and nanotechnology, institute for color science and technology.

in this paper, a modified sol-gel method using peroxotitanic acid sol (pta) was applied for the preparation of tio2 nanostructured thin films on glass plates. the peroxotitanic acid sol was synthesized using titanium isopropoxide, isopropylalchol, h2o and hydrogen peroxide. tio2 films were then calcined at 500oc and characterized by x-ray diffraction (xrd) and scanning electron microscopy (sem)...

Journal: :health scope 0
mohamad ali baghapour department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, ir iran amir hossein mahvi department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran; center for solid waste research, institute for environmental research, tehran university of medical sciences, tehran, ir iran; national institute of health research, tehran university of medical sciences, tehran, ir iran; department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran. tel: +98-2188954914, fax: +98-2188950188 sudabeh pourfadakari department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, ir iran; student research committee, shiraz university of medical sciences, shiraz, ir iran

conclusions the study results showed that by increasing the initial dye concentration and contact time, the adsorption capacity increased, as well. moreover, the thermodynamic parameters (δh °, δg °, and δs °) revealed the endothermic sorption of rr-198 onto mwcnts. results the rr-198 absorption rates were 33.26 and 222.88 mg/g, respectively for 20, and 200 mg/l dye concentration, at ph of 3, 6...

Ali Reza Hosseini, Edris Bazafshan, Ferdos Kord Mostafapour, Mohammad Ali Zazouli,

Background and purpose: Textile effluents are very difficult to treat satisfactorily due to high variations in their compositions. Strong color is one of the main characteristics of textile effluent and, if not eliminated, it can cause serious problems to the environment. In the present study, multi-walled carbon nanotubes (MWCNTs) were used as an adsorbent for the removal of Reactive Red-120 (...

Amir Anushiravani, Mansooreh Dehghani, Narges Shamsedini, Razieh Shabestari,

Abstract Background and purpose:The main objectives of this research were to evaluating the application of electrocoagulation process for 198 dye from the aqueous phase and determining the optimum operating conditions to the dye removal using aluminum and iron electrodes. Materials and Methods:The present study was conducted in bench-scale. The spectrophotometer DR 5000 was used to determine th...

Journal: :Environmental Health Perspectives 1994
D Gallemann P Eyer

During the well-established reaction pathways of nitrosoarenes interacting with thiols, a reactive N-(thiol-S-yl)-arylamine cation was implicated in the so-called rearrangement reaction which transforms the semimercaptal to the sulfinamide. In the case of nitrosoarenes with pi-donating substituents, this cationic transition state includes resonance structures bearing the positive charge in 2 an...

2017
Razia Khan M. H. Fulekar

BACKGROUND Reactive Red 31, applied extensively in the commercial textile industry, is a hazardous and persistent azo dye compound often present in dye manufacturing and textile industrial effluents. Aspergillus bombycis strain was isolated from dye contaminated zones of Gujarat Industrial Development Corporation, Vatva, Ahmedabad, India. The decolorization potential was monitored by the decrea...

Journal: :International Journal of Biological and Chemical Sciences 2013

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