Ozonation of azo dye Acid Red 14 in a microporous tube-in-tube microchannel reactor: Decolorization and mechanism

Gao, Meiping; Zeng, Zequan; Sun, Baochang; Zou, Hai‐Kui; Chen, Jianfeng; Shao, Lei

doi:10.1016/j.chemosphere.2012.05.083

Cited by 72 publications

(44 citation statements)

References 37 publications

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“…Ozonation is another type of AOT's oxidation used in the removal of synthesis dyes from wastewater effluents. It is a very effective technology in treating wastewater and is considered to be a good method in the decolourization of textile effluents as ozone (O3) attacks the nitrogen conjugated double bonds which are often associated with colours [83,84]. Ozonation reactions can be classified into direct reaction and indirect reaction based on the pH of the solution.…”

Section: Advanced Oxidation Technologies (Aots)mentioning

confidence: 99%

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Dawood¹,

Sen

2013

Journal of Chemical and Process Engineering

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Dyes are complex organic compounds which are used by various industries to colour their products. These dyes are purged from various industrial sources such as textile, cosmetic, paper, leather, rubber and printing industries. Wastewater effluents contain dyes which may cause potential hazards to the environment. Some of these dyes are toxic, carcinogenic and can cause skin and eye irritation. Therefore, many researchers have been studied the effectiveness of dyes removal from aqueous solution by different separation methods. Different separation techniques have been used for the treatment of dye-bearing wastewater such as adsorption, coagulation/flocculation, advanced oxidation technologies, ozonation, and membrane-filtration, aerobic and anaerobic degradation. All dye separation techniques have their own limitation in terms of design, operation efficiency and total cost. This review paper provides extensive literature information about dyes, its classification and toxicity together with various treatment methods into dye adsorption characteristics of several non-conventional cost effective sustainable adsorbents. The mechanism and the effects of various physio-chemical process parameters on dye adsorption are presented here.

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Section: Advanced Oxidation Technologies (Aots)mentioning

confidence: 99%

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Dawood¹,

Sen

2013

Journal of Chemical and Process Engineering

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“…Many researchers have studied different techniques for removal of toxic dyes from wastewater, including nanofiltration [5], coagulation/flocculation [6,7], micellar enhanced ultrafiltration [8], oxidation [9][10][11], ozonolysis [12][13][14], use of activated carbon [15,16] and biological treatment techniques [17,18]. However, these conventional wastewater treatment techniques are either expensive or a lot of wastes are generated during the purification process, which limits their application in wastewater remediation.…”

Section: Introductionmentioning

confidence: 99%

Palladium-decorated zinc sulfide/reduced graphene oxide nanocomposites for enhanced visible light-driven photodegradation of indigo carmine

Agorku

Mamo

Mamba

et al. 2015

Materials Science in Semiconductor Processing

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“…Many researchers have studied different techniques for the removal of dyes from wastewater, including nanofiltration [5,6], coagulation/flocculation [7,8], micellar enhanced ultrafiltration [9], oxidation [10][11][12], ozonolysis [13][14][15], the use of activated carbon [16,17] and biological treatment techniques [18,19]. However, these conventional wastewater treatment techniques are either expensive or a lot of wastes are generated during the purification process, which limits their application.…”

Section: Introductionmentioning

confidence: 99%

Cobalt-doped ZnS-reduced graphene oxide nanocomposite as an advanced photocatalytic material

et al. 2014

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The removal of toxic organic pollutants from wastewater by graphene-based photocatalysts has dominated recent scientific research. As a result numerous nanomaterials have been studied and used for water remediation. ZnS has been widely studied due to its versatile application in photocatalysis. This study presents the synthesis of Co-doped graphene-ZnS nanocomposite by co-precipitation method. The materials were characterized by X-ray diffraction , Raman spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and Brunauer-EmmettTeller surface area analysis. UV/Vis diffuse reflectance spectroscopy was employed to estimate band gap energies. Laboratory experiments with indigo carmine (IC) dye was chosen as a model for organic pollutants and was used to evaluate the photocatalytic performance of Co-doped ZnS-rGO nanocomposite under visible light. The Co-doped ZnS-rGO showed significant visible light induced photocatalytic activity towards the degradation of IC. Highest photocatalytic activity was observed for the 0.3 % Co-doped ZnS-rGO sample (k = 3.1 9 10 -2 min -1 ).

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Ozonation of azo dye Acid Red 14 in a microporous tube-in-tube microchannel reactor: Decolorization and mechanism

Cited by 72 publications

References 37 publications

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Palladium-decorated zinc sulfide/reduced graphene oxide nanocomposites for enhanced visible light-driven photodegradation of indigo carmine

Cobalt-doped ZnS-reduced graphene oxide nanocomposite as an advanced photocatalytic material

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