Data on modeling of enzymatic elimination of Direct Red 81 using Response Surface Methodology

Kamani, Hossein; Safari, Gholam Hossein; Asgari, Ghorban; Ashrafi, Seyed Davoud

doi:10.1016/j.dib.2018.03.012

Cited by 28 publications

(14 citation statements)

References 8 publications

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“…DB71 was purchased from Alvan Sabet Co. (Tehran, Iran). For assaying the laccase activity, oxidation of ABTS was monitored according to standard method which described in previous works [5] , [8] , [9] . Briefly, one activity unit of laccase was defined as the amount of laccase that oxidize 1μmol of substrate like ABTS per min.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…Briefly, one activity unit of laccase was defined as the amount of laccase that oxidize 1μmol of substrate like ABTS per min. Dye concentration was measured by using UV–vis spectrophotometer (Shimadzu UV 1700, Japan) through a calibration curve by analysis the maximum absorbance wavelength 584 nm and the removal percentage was then calculated [8] , [10] .…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…In order to evaluate the main and interaction effects of variables on DB71 removal and to develop a mathematical model for removal process the ANOVA analyzing was used. The DB71 removal study was done according to the method previously described [8] . Briefly, the final volume of reaction solutions were 5 mL which prepared in 0.1 M citrate sodium buffer.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

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Direct Blue 71 removal from aqueous solution by laccase-mediated system; A dataset

et al. 2018

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The removal of Direct Blue 71 (DB71), by laccase (EC 1.10.3.2, p-bezenediol:dioxygen oxidoreductases) enzyme in presence of 2,2′-Azinobis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS), in aqueous solution was investigated. Data on this article focused on the optimizing and modeling of DB71 removal by Response surface method (RSM) based on Box–Behnken design (BBD), through studying the effective variables as follows: ABTS dose (0.05–0.2 mM), Laccase dose (0.05–0.2 U mL−1), and pH (3–7). The results of experimental showed that laccase was able to removal DB71 with removal percentage of 83% at concentration of 50 mg L−1 after 30 min incubation in presence of ABTS 0.2 mM, at temperature 40 °C and pH 5. The Analysis of Variance (ANOVA) for the predicted quadratic model was done and quadratic equation showed significant R-Squared (0.9969), Adjusted R-Squared (0.9914) and Adequate Precision (49.7). The lack of fit is not significant due to p-value prob > F more than 0.05.

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Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

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Direct Blue 71 removal from aqueous solution by laccase-mediated system; A dataset

et al. 2018

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“…In statistics, response surface methodology explores the relationships between several explanatory variables and one or more response variables. The main idea of RSM is the use of a sequence of designed experiments to obtain an optimal response [39][40][41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Removal of cephalexin from artificial wastewater by mesoporous silica materials using Box-Behnken response surface methodology

Panahi¹,

Ashrafi²,

Kamani³

et al. 2019

Desalination and Water Treatment

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a b s t r a c tMesoporous silica such as MCM-41 was used as an adsorbent for the removal of cephalexin antibiotic from synthetic wastewater. In this study, MCM-41 adsorbent was synthesised and was characterised by FE-SEM, XRD, FTIR and isotherms of adsorption/desorption of N 2 . The effects of initial pH, adsorbent dose, initial adsorbate concentration, contact time and temperature on process efficiency were evaluated using Box-Behnken statistical experiment design (RSM). FTIR analysis revealed the Si-OH, H-O-H and Si-O-Si bonds are formed. According to BET surface area, MCM-41 had pores with a diameter of more than 2.0 nm and surface area of 1,097 m 2 g -1 and also XRD spectra showed the mean crystallite size of MCM-41 was 75 nm. The statistical results show that pH, adsorbent dose, initial antibiotic concentration, temperature and quadratic pH were significant and presented with probability <0.05. The optimum removal condition based on analysis of variance and the quadratic model was the initial pH of adsorbate solution fixed at 3.00, adsorbent dose 800 mg L -1 , the initial concentration of antibiotic at 50.0 mg L -1 , a temperature of 40.0°C, and at the adsorption time of 30.0 min. Under these conditions, the percentage removal of cephalexin antibiotic was 90.3%. Therefore, according to the obtained results, the mesoporous silica can be used to adsorb cephalexin antibiotic in optimal conditions designed by response surface methodology.

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“…Therefore, removal of various dyes from industrial wastewater before discharging them into natural water bodies is of high importance for environmental safety. There are different methods that can be used for textile wastewater treatments, such as Fenton, photo-Fenton, flocculation and coagulation, adsorption processes [2,[6][7][8], biological treatment [9][10][11], electrochemical techniques, ion exchange, Advanced Oxidation Processes (AOPs), and photcatalytic degradation under UV light. AOP can be an alternative process for traditional wastewater treatments since providing a potential for a nonselective attack to organic matter [12].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and photocatalytic application of Ag-doped Fe-ZSM-5@TiO2 nanocomposite for degradation of reactive red 195 (RR 195) in aqueous environment under sunlight irradiation

Aghajari

Ghasemi

Younesi

et al. 2019

J Environ Health Sci Engineer

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Background Most dyes have aromatic rings in their structures, which make them highly toxic for human being and aquatic life. Heterogeneous photodegradation using TiO 2 nanoparticles is one of the most applied methods used for dye removal. The wide band gap of TiO 2 nanoparticles disables its use of the visible light and thus the vast potential of sunlight. To overcome this deficiency, Ag doped TiO 2 nanoparticles were loaded on Fe-ZSM-5. Methods Fe-ZSM-5@TiO 2-Ag photocatalyst was synthesized through sol-gel and hydrothermal methods to remove hazardous Reactive Red 195 (RR 195) from aqueous solution. Results Pure phase of Fe-ZSM-5@TiO 2-Ag with specific surface area of 332 m 2 /g was successfully synthesized. Formation of Ti-O-Ag functional group in the photocatalyst structure confirmed the nanocomposite form of the product. SEM and TEM images portrayed the synthesized zeolite and photocatalyst NPs in a size range of ≤100 nm with homogenous distribution of Ag doped TiO 2 on Fe-ZSM-5 surface. The band-gap energy of Fe-ZSM-5@TiO 2-Ag was calculated 1.97 eV at λ = 630 nm. Photocatalytic activity of the photocatalyst under natural sunlight was investigated through photodecomposition of RR 195 in an aqueous solution. The dye photodecomposition of about 98% was achieved at photocatalyst concentration of 400 mg/L, pH of 3, and dye concentration of 50 mg/L at ambient temperature after 120 min under sunlight using 0.5 ml of TiO 2 and silver ammonium nitrate. The photocatalyst reusability was found significant after 5 frequent cycles. Conclusion The novel Ag-doped TiO 2-Fe-ZSM-5 nanocomposite with sunlight sensitivity can be a promising candidate to purify wastewater containing organic pollutants.

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Data on modeling of enzymatic elimination of Direct Red 81 using Response Surface Methodology

Cited by 28 publications

References 8 publications

Direct Blue 71 removal from aqueous solution by laccase-mediated system; A dataset

Direct Blue 71 removal from aqueous solution by laccase-mediated system; A dataset

Removal of cephalexin from artificial wastewater by mesoporous silica materials using Box-Behnken response surface methodology

Synthesis, characterization and photocatalytic application of Ag-doped Fe-ZSM-5@TiO2 nanocomposite for degradation of reactive red 195 (RR 195) in aqueous environment under sunlight irradiation

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