نتایج جستجو برای: Direct dyes

تعداد نتایج: 443669  

Journal: :Environmental Technology and Innovation 2022

Compost from pine bark has been previously suggested as an effective low-cost biosorbent for different classes of textile dyes, although the existing studies have performed in non-competitive batch conditions, so effect competition or adsorption continuous-flow conditions not assessed. In this work, removal Basic Violet 10 (BV10) and Direct Blue 151 (DB151) by compost single bi-solute mixtures ...

Journal: :Chemical engineering journal advances 2021

This work has studied the photoelectrochemical production of hydrogen peroxide and direct use produced material for degradation (decolorization) three common dyes: methylene blue, basic blue 41 acid orange 7. Hydrogen was in cathode compartment a photocatalytic fuel cell by atmospheric oxygen reduction. The operated with CdS-sensitized mesoporous titania photoanode simple carbon cloth carrying ...

Journal: :IARC monographs on the evaluation of carcinogenic risks to humans 1993

Throughout history and across cultures, women as well as men have felt the need to change the natural colour of their skin, lips and hair, or to restore the colour of greying hair. For thousands of years, cosmetic dyes have been a part of all human cultures. The use of hair dyes can be traced back at least 4000 years; evidence from royal Egyptian tombs suggests the use of henna for dyeing of ha...

Journal: :Biodiversitas 2022

Abstract. Irawati W, Pinontoan R, Mouretta B, Yuwono T. 2021. The potential of copper-resistant bacteria Acinetobacter sp. strain CN5 in decolorizing dyes. Biodiversitas 23: 680-686. Bacteria with multi-resistance to copper and dyes may be employed bioremediation dye waste more effectively than physical or chemical remediation. This study aims at determining the effect addition various textile ...

2016
Jingfei Luan Yue Shen Lingyan Zhang Ningbin Guo

BiGdO₃ nanoparticles were prepared by a solid-state reaction method and applied in photocatalytic degradation of dyes in this study. BiGdO₃ was characterized by X-ray powder diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, Brunauer-Emmett-Teller, UV-Vis diffuse reflectance spectroscopy and transmission electron microscopy. The results showed that BiGdO₃ crystallized ...

2014
Yuling Han Lili Shi Jing Meng Hongbo Yu Xiaoyu Zhang Ligia O. Martins

Lignocellulose facilitates the fungal oxidization of recalcitrant organic pollutants through the extracellular ligninolytic enzymes induced by lignin in wood or other plant tissues. However, available information on this phenomenon is insufficient. Free radical chain reactions during lignin metabolism are important in xenobiotic removal. Thus, the effect of lignin on azo dye decolorization in v...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1379

‏‎for the first time nakayama introduced qf-ring. in 1967 carl. faith and elbert a. walker showed that r is qf-ring if and only if each injective right r-module is projective if and only if each injective left r-modules is projective. in 1987 s.k.jain and s.r.lopez-permouth proved that every ring homomorphic images of r has the property that each cyclic s-module is essentialy embeddable in dire...

Journal: :Applied Surface Science 2021

Laponite is a nanoplatform that has been successfully used as new biomaterial for drug delivery, tissue engineering and bioimaging at the nanoscale. In general, deep knowledge of mechanism interaction nanomaterial with biological components in physiological environment highly desirable properly characterizing its therapeutic efficacy toxicology. Up to know, use fluorescent dyes labelling both, ...

In the present study, five naphthalene-based azo dyes were obtained using classical azo coupling reactions. The structure of the dyes was characterized and confirmed by the UV-vis, FT-IR, 1H NMR and 13C NMR analyses. The solvatochromic behavior of the dyes was studied in a set of 10 solvents with different polarity and considerable results were obtained. The dyes were applied as disperse dyes t...

Ameneh Khorsand Mahboobeh Manoochehri Reza Fazaeli

In the present work, we have investigated the sorption efficiency of the treated activated carbon from walnut shell(ACW) towards Direct Red 81 (DR81) and Direct Blue 71 (DB71) for the removal from aqueous solution. Thesorption study of ACW at the solid-liquid interface was investigated using kinetic, sorption isotherms, pH effectand amount of adsorbent. Experimental data were analyzed by Langmu...

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