Factors Influencing the Photocatalytic Degradation of Reactive Yellow 145 by TiO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;-Coated Non-Woven Fibers

Alahiane, Said; Qourzal, Samir; Ouardi, Mahmoud El; Abaamrane, Abdelhadi; Assabbane, Ali

doi:10.4236/ajac.2014.58053

Cited by 75 publications

(17 citation statements)

References 34 publications

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“…Effluents are filled with many types of ions and molecules which greatly modulate the rate of dye degradation (Senthilraja et al 2016). Ions such as Fe 2+ , Ca 2+ , Mg 2+ , Al 3+ , Na + , K + , NH 4 + , Cl − , PO 4 3− , SO 4 2− , HCO 3 − and NO 3 − are generally present in wastewater (Alahiane et al 2014;Azzaz et al 2018;Isari et al 2018). Many of these are HO • and electron scavenging in nature, i.e.…”

Section: Influence Of Additives and Impuritiesmentioning

confidence: 99%

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

et al. 2020

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Textile wastewaters contain refractory dyes that cause pollution and socioeconomic issues, thus calling for efficient remediation techniques such as photocatalysis. We review the fabrication, functionalization, performance and limitations of doped catalysts for degrading and mineralizing dyes. We present developments in photocatalyst immobilization and photocatalytic reactor design. Methods such as microwave irradiation, sonication and use of ionic liquids are emerging for the preparation of doped photocatalysts. Whilst single-dye systems have been extensively studied, there is limited knowledge on multipledye systems. Immobilization of photocatalysts is gaining popularity for large-scale application, but faces issues of erosion, corrosion, mechanical strength and structure integrity. Ecotoxicological studies are required in real environments to validate the potential applications of nanostructured doped photocatalysts.

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Section: Influence Of Additives and Impuritiesmentioning

confidence: 99%

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

et al. 2020

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“…Moreover, they have a low cost, highly soluble in water as anionic electrophiles and wide range of color can be given bright colors [1] [2] [3] [4] [5]. There are many types of these dyes that have a general formula structure S-F-T-X, where, S is solubilizing group like SO 3 group, F is chromophore group like azo or aromatic ring groups, T is Bridge group such as sulphide, imino, oxide, ethyl & methyl groups and X is reactive group such as vinylsulfone and dichlorotriazine that are accountable to bound with cellulosic fibers [5] [6].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Photocatalytic Properties of Pure and Cr-Modified ZnS Powders Synthesized by Precipitation Method

Mahammed¹,

Ahmed²

2017

GEP

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Zinc sulfide photocatalysts doped with chromium (1:1)% were synthesized via precipitation technique. Their characteristics were studied by X-ray diffraction (XRD), AFM and Florescence spectrometer. The photocatalytic reaction was applied under light intensity equal to 1.45 × 10 −7 Einstein mol-1 to investigate the kinetics and thermodynamic parameters for photo-decolorization of reactive black 5 dye in collide solution of bare and Cr-doped ZnS. The mean crystal size and particle size for bare ZnS are more than those values for prepared Cr loaded ZnS.

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“…The photocatalyst was precipitated from the solution by applying an external magnet and then washed with distilled water and stored for further use. The efficiency of the photocatalytic degradation of the fabricated materials was calculated based on the degree of absorption in the absorption spectra of the dye solution with respect to the intensity corresponding to λ max of eosin Y (515 nm) by using the equation given below [ 56 – 58 ]:

where C o is the initial concentration of the dye and C is the concentration of the dye after irradiation in a selected time interval. Parameters A o and A are the absorbance of eosin Y solutions in the 515 nm wavelength at the initial and at any time thereafter, respectively.…”

Section: Methodsmentioning

confidence: 99%

Photodegradation of Eosin Y Using Silver-Doped Magnetic Nanoparticles

Alzahrani

2015

International Journal of Analytical Chemistry

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The purification of industrial wastewater from dyes is becoming increasingly important since they are toxic or carcinogenic to human beings. Nanomaterials have been receiving significant attention due to their unique physical and chemical properties compared with their larger-size counterparts. The aim of the present investigation was to fabricate magnetic nanoparticles (MNPs) using a coprecipitation method, followed by coating with silver (Ag) in order to enhance the photocatalytic activity of the MNPs by loading metal onto them. The fabricated magnetic nanoparticles coated with Ag were characterised using different instruments such as a scanning electron microscope (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray (EDAX) spectroscopy, and X-ray diffraction (XRD) analysis. The average size of the magnetic nanoparticles had a mean diameter of about 48 nm, and the average particle size changed to 55 nm after doping. The fabricated Ag-doped magnetic nanoparticles were used for the degradation of eosin Y under UV-lamp irradiation. The experimental results revealed that the use of fabricated magnetic nanoparticles coated with Ag can be considered as reliable methods for the removal of eosin Y since the slope of evaluation of pseudo-first-order rate constant from the slope of the plot between ln⁡(C o/C) and the irradiation time was found to be linear. Ag-Fe3O4 nanoparticles would be considered an efficient photocatalyst to degrade textile dyes avoiding the tedious filtration step.

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Factors Influencing the Photocatalytic Degradation of Reactive Yellow 145 by TiO<sub>2</sub>-Coated Non-Woven Fibers

Cited by 75 publications

References 34 publications

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

Enhanced Photocatalytic Properties of Pure and Cr-Modified ZnS Powders Synthesized by Precipitation Method

Photodegradation of Eosin Y Using Silver-Doped Magnetic Nanoparticles

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