Photocatalytic Treatment and Reusability of Textile Dyeing Effluents from Cotton Dyeing Industries

Roselin, L. Selva; Selvin, Rosilda

doi:10.1166/sam.2011.1142

Cited by 27 publications

(8 citation statements)

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“…The crystallite size was calculated using the Scherrer's equation (1). The average crystallite sizes of the monoclinic phase, calculated from the (111) diffraction peak was found to be 34 nm.…”

Section: X-ray Powder Diffractionmentioning

confidence: 99%

Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange

Basahel¹,

Ali²,

Mokhtar³

et al. 2016

Nano Online

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Nanosized ZrO 2 powders with near pure monoclinic, tetragonal, and cubic structures synthesized by various methods were used as catalysts for photocatalytic degradation of methyl orange. The structural and textural properties of the samples were analyzed by X-ray diffraction, Raman spectroscopy, TEM, UV-vis, X-ray photoelectron spectroscopy (XPS), and N 2 adsorption measurements. The performance of synthesized ZrO 2 nanoparticles in the photocatalytic degradation of methyl orange under UV light irradiation was evaluated. The photocatalytic activity of the pure monoclinic ZrO 2 sample is higher than that of the tetragonal and cubic ZrO 2 samples under optimum identical conditions. The characterization results revealed that monoclinic ZrO 2 nanoparticles possessed high crystallinity and mesopores with diameter of 100 Å. The higher activity of the monoclinic ZrO 2 sample for the photocatalytic degradation of methyl orange can be attributed to the combining effects of factors including the presence of small amount of oxygen-deficient zirconium oxide phase, high crystallinity, large pores, and high density of surface hydroxyl groups.

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Section: X-ray Powder Diffractionmentioning

confidence: 99%

Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange

Basahel¹,

Ali²,

Mokhtar³

et al. 2016

Nano Online

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show abstract

“…The rapid growth of the textile industry has led to the accumulation of various organic pollutants, with dyes accumulating in bodies of water as a particularly severe example. This type of aquatic pollution has indirect or direct adverse effects on the biosphere [ 1 ]. Photocatalysis is one promising approach to protect the aquatic environment based on its ability to oxidize low concentrations of organic pollutants in water [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange

et al. 2015

View full text Add to dashboard Cite

Nanosized ZrO2 powders with near pure monoclinic, tetragonal, and cubic structures synthesized by various methods were used as catalysts for photocatalytic degradation of methyl orange. The structural and textural properties of the samples were analyzed by X-ray diffraction, Raman spectroscopy, TEM, UV-vis, X-ray photoelectron spectroscopy (XPS), and N2 adsorption measurements. The performance of synthesized ZrO2 nanoparticles in the photocatalytic degradation of methyl orange under UV light irradiation was evaluated. The photocatalytic activity of the pure monoclinic ZrO2 sample is higher than that of the tetragonal and cubic ZrO2 samples under optimum identical conditions. The characterization results revealed that monoclinic ZrO2 nanoparticles possessed high crystallinity and mesopores with diameter of 100 Å. The higher activity of the monoclinic ZrO2 sample for the photocatalytic degradation of methyl orange can be attributed to the combining effects of factors including the presence of small amount of oxygen-deficient zirconium oxide phase, high crystallinity, large pores, and high density of surface hydroxyl groups.

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“…Conventional wastewater treatment processes are often ineffective in dyes removal from the effluent [1]. Conventional techniques like, ozonation, electrolysis and coagulation are often costly, limited applicability and produce more toxic secondary amines [4,5].…”

Section: Introductionmentioning

confidence: 99%

First Report of using Response Surface Methodology for the Biodegradation of Single Azo Disperse Dyes by Indigenous Daedalea dickinsii-IEBL-2

Mahmood¹,

Asad²,

Asgher³

et al. 2020

Rom Biotechnol Lett.

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Textile dyes accounts for 22 % of total dyes utilization and are potential pollutants due to their toxicity and carcinogenicity. Brown Rot Fungi (BRF) have great potential of biodegradation of dyestuffs due to their efficient nonspecific ligninolytic enzyme system. Current study was conducted for application of indigenous Daedalea dickinsii IEBL-2, a brown rot fungi, to degrade single azo disperse dyes i.e. disperse violet-63 and disperse orange-30. Response Surface Methodology (RSM) with Box Behnken Design was employed to optimized biodegradation process. Ligninolytic enzymes involved in biodegradation were also studied and biodegradation process was monitored by High Performance Liquid Chromatography (HPLC). There was 72.14±1.1% and 68.71±1.04% biodegradation observed after screening experiments for dye-1 and dye-2. Optimization by RSM at step-1 increases biodegradation to 80.83±1.35% and 78.3±1.16% and after step-2, 88.93±1.32% and 93.32±1.54% respectively. Study of ligninolytic enzymes i.e manganese peroxidase, lignin peroxidase and laccase revealed their involvement in biodegradation process. HPLC analysis confirmed the biodegradation process and conversion of complex dyes into simple secondary amines i.e diphenylamine and 3-methyldiphenylamine. These findings would help to reduce the environmental pollution by textile effluent and also reduces the risk of certain diseases.

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Photocatalytic Treatment and Reusability of Textile Dyeing Effluents from Cotton Dyeing Industries

Cited by 27 publications

References 0 publications

Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange

Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange

Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange

First Report of using Response Surface Methodology for the Biodegradation of Single Azo Disperse Dyes by Indigenous Daedalea dickinsii-IEBL-2

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