Degradation of anthraquinone dye C.I. Reactive Blue 19 in aqueous solution by ozonation

Fanchiang, Jen-Mao; Tseng, Dyi‐Hwa

doi:10.1016/j.chemosphere.2009.07.038

Cited by 130 publications

(85 citation statements)

References 28 publications

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“…According to different studies on advanced degradation processes of RB19 [41,42], the most susceptible bonds to be attacked are amino, sulfonic and vinylsulfonyl bonds, far away from bonds within the anthraquinone rings, and finally the bonds within the naphthaquinone rings.…”

Section: Anthraquinone Dyesmentioning

confidence: 99%

Photocatalytic Discoloration of Dyes: Relation between Effect of Operating Parameters and Dye Structure

Camarillo

Rincón

2011

Chem Eng & Technol

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The process of TiO 2 /UV photocatalytic discoloration of wastewaters containing organic dyes is influenced by a number of variables. In this paper, the effects of some of these parameters, i.e., mass of catalyst, initial dye concentration, and pH, were related to the structural nature of the dyes investigated, azo and anthraquinone dyes, two families that are representative of about 75 % of the dyes marketed nowadays. Both bibliographical and own experimental data were used to analyze and discuss the photocatalytic discoloration in terms of dye structure and degradation pathways. It is shown that azo dyes (Methyl Orange, Metanil Yellow, Acid Orange 7, and Reactive Red 120) are more easily discolored than Reactive Blue 19 (anthraquinone dye), due to the higher molecular stability of the latter. It is also shown that azo dye discoloration is more influenced by the initial dye concentration, whereas recalcitrant anthraquinone dyes (Reactive Blue 19) mainly demand for basic pH values to generate enough OH . radicals. Concerning TiO 2 loading, both the bibliographical and current research data showed no effect of this variable in the experimental range analyzed.

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Section: Anthraquinone Dyesmentioning

confidence: 99%

Photocatalytic Discoloration of Dyes: Relation between Effect of Operating Parameters and Dye Structure

Camarillo

Rincón

2011

Chem Eng & Technol

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“…Each sample was tested three times, and the averages were recorded. The amount of dye adsorbed at equilibrium (qe(mg.gr -1 )) and the dye removal efficiency (R%) were determined using equations (1) and (2), respectively [11].…”

Section: Safranin-o Dye Absorptionmentioning

confidence: 99%

Safranin-O Dye Removal from Aqueous Solution Using Superabsorbent Lignin Nanoparticle/Polyacrylic Acid Hydrogel

Didehban¹,

Mirshokraie²,

Azimvand³

2018

Eurasian J Anal Chem

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Alkali lignin (AL) modified by ethylene glycol and lignin nanoparticles (LN) was prepared through the acid precipitation technology. Lignin nanoparticle/polyacrylic acid (LN/PAA) hydrogel was prepared using copolymerization reactions. LN and LN/PAA hydrogel were investigated using GPC, SEM, FT-IR spectroscopy, and TGA-DTG analysis. The sizes of the nanoparticles were assessed using DLS. LN/PAA hydrogel was used to remove Safranin-O from an aqueous Solution. The optimal conditions for absorption provided at pH 7, an initial concentration of dye of 1.5 gr.L -1 , and an adsorbent dosage of 0.1 gr. Also, the optimal time for LN and LN/PAA hydrogel were 100 min and 450 min, respectively. Both absorbent LN and LN/PAA hydrogel showed good agreement with the Langmuir isotherm. The maximum absorption capacities of LN and LN/PAA hydrogel were determined to be 100 mg.gr -1 and 1666.6 mg.gr -1 , respectively. Both absorbent LN and LN/PAA hydrogel follow the pseudo-second kinetic model and the intraparticle diffusion model.

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“…GC analysis was performed with a HP5 capillary chromatographic column (320 mm £ 0.25 mm £ 30 m), the injection was conducted on a splitless mode, the temperature programmed mode according to Jen-Mao described previously. 30 The injector temperature was maintained at 250 C and helium was used as the carrier gas at a flow rate of 0.8 mL min ¡1 .…”

Section: ¡1mentioning

confidence: 99%

Decolorization pathways of anthraquinone dye Disperse Blue 2BLN by Aspergillus sp. XJ-2 CGMCC12963

Pan

Zhang

et al. 2017

Bioengineered

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Anthraquinone dye represents an important group of recalcitrant pollutants in dye wastewater. Aspergillus sp XJ-2 CGMCC12963 showed broad-spectrum decolorization ability, which could efficiently decolorize and degrade various anthraquinone dyes (50 mg L ¡1 ) under microaerophilic condition. And the decolorization rate of 93.3% was achieved at 120 h with Disperse Blue 2BLN (the target dye). Intermediates of degradation were detected by FTIR and GC-MS, which revealed the cleavage of anthraquinone chromophoric group and partial mineralization of target dye. In addition, extracellular manganese peroxidase showed the most closely related to the increasing of decolorization rate and biomass among intracellular and extracellular ligninolytic enzymes. Given these results, 2 possible degraded pathways of target dye by Aspergillus sp XJ-2 CGMCC12963 were proposed first in this work. The degradation of Disperse Blue 2BLN and broad spectrum decolorization ability provided the potential for Aspergillus sp XJ-2 CGMCC12963 in the treatment of wastewater containing anthraquinone dyes.

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Degradation of anthraquinone dye C.I. Reactive Blue 19 in aqueous solution by ozonation

Cited by 130 publications

References 28 publications

Photocatalytic Discoloration of Dyes: Relation between Effect of Operating Parameters and Dye Structure

Photocatalytic Discoloration of Dyes: Relation between Effect of Operating Parameters and Dye Structure

Safranin-O Dye Removal from Aqueous Solution Using Superabsorbent Lignin Nanoparticle/Polyacrylic Acid Hydrogel

Decolorization pathways of anthraquinone dye Disperse Blue 2BLN by Aspergillus sp. XJ-2 CGMCC12963

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