نتایج جستجو برای: dye degradation

تعداد نتایج: 188828  

2016
N. Uma Maheswari S. Sivagami

Rapid industrialization has necessitated the manufacture and use of different chemicals in day to day life. Water is life but now-a-days due to advancement in industrialization, it a spoiling a lot. In the present study, an attempt was made to examine the isolation and identification of Bacillus species from marine soil, Nagapattinum seashore, Tamil Nadu, India. Dyes are collected from in aroun...

Journal: :Journal of environmental sciences 2018
Subramanian Natarajan Hari C Bajaj Rajesh J Tayade

The problem of textile dye pollution has been addressed by various methods, mainly physical, chemical, biological, and acoustical. These methods mainly separate and/or remove the dye present in water. Recently, advanced oxidation processes (AOP) have been focused for removal of dye from waste water due to their advantages such as ecofriendly, economic and capable to degrade many dyes or organic...

2009
M. A. Mahmoud A. Poncheri Y. Badr M. G. Abd El Wahed

Introduction Most dyes used in the pigmentation of textiles, paper, leather, ceramics, cosmetics, inks and food-processing products are derived from azo dyes, which are characterised by the presence of one or more azo groups (-N=N-) in their structure. Approximately 15% of the dyes produced worldwide are lost within waste water during synthesis and processing. This waste represents a great haza...

Journal: :Solar RRL 2022

Degradation of dye solar cell performance based on the early changes in electrolyte color is predicted, allowing to estimate lifetime cells even before their efficiency declines. Previous predictive models commonly rely regression analysis predicted parameter; thus, they are unable capture degradation a significant decrease performance. tests, when accelerated, may take thousands hours. As such...

B. N. Patil D. S. Shirsath V. S. Shrivastava Y. V. Marathe

The photodegradation of Ponceau-S dye was investigated using UV radiation in presence of nanosized Fe2 O3 .Removal efficiency of Ponceau-S was sensitive to the operational parameters such as dye concentration, catalyst dose, pH, contact time, TOC and COD. The photocatalytic treatment of red colored Ponceau-S dye by magnetic nano semiconductor (Fe2 O3 )is an effective, economic and faster mode. ...

2009
Mohammad Hadi Dehghani Ali Reza Mesdaghinia Simin Nasseri Amir Hossein Mahvi Kamal Azam

The effect of sonochemical reactors (SCR) technology upon the degradation of reactive yellow dye has been studied and reported here. Sonochemical reactors (ultrasound irradiation) produce strong cavitation in aqueous solution causing shock wave and reactive free radicals by the violent collapse of the cavitation bubble. These effects should contribute to destruction as well as the decomposition...

2010
B Krishnakumar

The degradation of an azo dye, Acid Black 1 (AB 1) with ZnO as photocatalyst using natural solar light in aqueous solution has been investigated under different conditions. The degradation is more with solar/ZnO process than with solar/TiO2-P25 process at pH 9. The influence of operational parameters such as the amount of photocatalyst, dye concentration and initial pH on photodegradation by Zn...

2017
JYOTI SHARMA

Photocatalytic degradation of fast green using pure and N-S codoped bimetal nanoparticles CeCdO3 has been studied. The CeCdO3 nanoparticles were synthesized by wet precipitation method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and FTIR. The rate of photocatalytic reaction was examined spectrophotometrically using pure and N, S-codoped catalyst. The effect ...

2015
Rajaa Idel-aouad Manuel Valiente Carmen Gutiérrez-Bouzán Mercè Vilaseca Abdlrani Yaacoubi Boumediene Tanouti Montserrat López-Mesas

Fenton and Fenton-like processes, both in homogeneous and heterogeneous phases, have been applied to an aqueous solution containing the dye AR 14 in order to study the mineralization and toxicity of the solutions generated after color elimination. The mineralization of AR 14 occurred slower than the decolorization. The Microtox analysis of the treated solutions showed low toxicity intrinsic to ...

2012
MASOUD NASR-ESFAHANI SHIVA JOOHARI

Photocatalytic degradation of an organic dye, emerald green, on nano titanium dioxide (anatase 99.5%) at basic buffer pH of 7, 8 and 9 has been investigated. The effects of various operating parameters such as initial concentration of dye, catalyst dosage, bufferic pH and irradiation time on photocatalytic degradation have been studied in a photoreactor cell containing high pressure mercury lam...

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