Catalytic wet peroxide oxidation of azo dye (Direct Blue 15) using solvothermally synthesized copper hydroxide nitrate as catalyst

Zhan, Yanhui; Zhou, Xiaohua; Fu, Bei; Chen, Yiliang

doi:10.1016/j.jhazmat.2011.01.027

Cited by 79 publications

(28 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…35 This confirms Cu incorporation into the framework of SBA-15 and copper species to the silica surface with the formation of SiAOACu-type association. 34 The IR spectrum of the samples showed absence of CuAO stretch vibration band at 536 cm 21 .…”

Section: Results and Discussion Characterizationmentioning

confidence: 59%

Catalytic Activity of Cu/SBA‐15 for Peroxidation of Pyridine Bearing Wastewater at Atmospheric Condition

2013

View full text Add to dashboard Cite

In this study, Cu-loaded Santa Barbara amorphous (SBA)-15 catalysts were synthesized by impregnation method and further used for catalytic wet peroxidation (CWPO) of pyridine from aqueous solution using hydrogen peroxide as oxidant. The synthesized catalysts have been characterized by Brunauer-Emmett-Teller surface area: temperature-programmed reduction, H 2 -chemisorption, Fourier transform infrared spectroscopy, and field emission scanning electron microscopy. Characterization results indicate good dispersion of Cu species inside the porous structure of SBA-15. The effect of various parameters such as Cu loading on SBA-15, pH, catalyst dose, H 2 O 2 concentration, and temperature have been studied for their effect on CWPO of pyridine. More than 97% pyridine removal and 92% total organic carbon removal was achieved at optimum condition. Cu/SBA-15 showed stable performance during reuse for six cycles with negligible copper leaching.

show abstract

Section: Results and Discussion Characterizationmentioning

confidence: 59%

Catalytic Activity of Cu/SBA‐15 for Peroxidation of Pyridine Bearing Wastewater at Atmospheric Condition

2013

View full text Add to dashboard Cite

show abstract

“…A number of reports have demonstrated that catalyst dosage has a large influence on the reaction rate [20,21]. To investigate the effect of Cu-Clay addition on dye degradation, six different catalyst loadings (0, 10, 20, 30, 40, and 50 mg) were tested.…”

Section:  Effect Of Catalyst Loadingmentioning

confidence: 99%

Preparation and Characterisation A Catalytic System Cu-Clay for Catalytic Oxidation of Methyl Orange with H2O2

Idrissi¹,

Miyah²,

Lahrichi³

et al. 2014

IJIRSET

View full text Add to dashboard Cite

ABSTRACT:In this work, the decolorization of Methyl Orange was conducted using catalysts prepared by impregnation of copper on natural clay in the presence of H 2 O 2 . The catalysts Cu-clay, prepared from the concentrated metal precursor of (impregnation ratio, W(Cu(NO 3 ) 2 )/W(clay) = 1,5%-7,5%) were characterized by several methods such as X-ray diffraction (XRD), electronic scan microscopy (SEM), x-ray fluorescence (FX), and Brunauer-EmmettTeller (BET). Important factors affecting catalyst activity and methyl orange removal efficiencies were studied: the effects of temperature, oxidant concentration, and catalyst dosage. The results showed, a very significant activation of hydrogen peroxide by the catalyst, the Methyl Orange depletion percentage reaching 94 % after 2 h, and very stability of the catalyst. It was also observed that the best catalyst, at a reaction temperature of 25°C. 2,5ml of H 2 O 2 and 4.0 g/L of 5% Cu-clay, 94% decolorization was achieved within 120 min treatment. Although the Cu show high activity, their stability and reusability still need improvement.

show abstract

“…This resulted in complete decomposition of dye at a relatively mild temperature (300 C) and pressure (10 MPa) conditions. In literature, catalytic decomposition of RBBR is reported using copper complex (Verma et al, 2004), where, only decolorization of solution was obtained within a long reaction time of 24 h. Herrera et al, (Herrera et al, 2001) observed a 40% carbon removal at 275 C. Whereas, in contrast to simple catalytic dye decomposition processes (Swaminathan et al, 2003;Zhan et al, 2011;Prihodko et al, 2011), 99.9% TOC removal was attained within a short residence time of 3.2 s.…”

Section: Effect Of Temperature and Pressurementioning

confidence: 99%

“…Fenton's reagent (a mixture of H 2 O 2 and Fe 2þ /Fe 3þ ) is one of the most common homogeneous catalytic systems for decomposition of synthetic dyes (Meric et al, 2004;Sun et al, 2007;Ramirez et al, 2005;Karci, 2014). Copper, cobalt, chromium, aluminum, nickel, manganese, and other soluble salts also demonstrated higher catalytic activities (Bokare and Choi, 2014;Surpateanu and Zaharia, 2004;Xu et al, 2004;Ling et al, 2010;Zhan et al, 2011). However, the recovery of homogeneous catalysts from the effluents is difficult and requires additional separation steps which increase the cost for wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient decomposition of Remazol Brilliant Blue R using tubular reactor coated with thin layer of PdO

Javaid

Qazi

Kawasaki

2016

Journal of Environmental Management

View full text Add to dashboard Cite

Catalytic wet peroxide oxidation of azo dye (Direct Blue 15) using solvothermally synthesized copper hydroxide nitrate as catalyst

Cited by 79 publications

References 35 publications

Catalytic Activity of Cu/SBA‐15 for Peroxidation of Pyridine Bearing Wastewater at Atmospheric Condition

Catalytic Activity of Cu/SBA‐15 for Peroxidation of Pyridine Bearing Wastewater at Atmospheric Condition

Preparation and Characterisation A Catalytic System Cu-Clay for Catalytic Oxidation of Methyl Orange with H2O2

Highly efficient decomposition of Remazol Brilliant Blue R using tubular reactor coated with thin layer of PdO

Contact Info

Product

Resources

About