Magnetic Metal Organic Framework Immobilized Laccase for Wastewater Decolorization

Amari, Abdelfattah; Alzahrani, Fatimah Mohammed; Alsaiari, Norah Salem; Katubi, Khadijah Mohammedsaleh; Rebah, Faouzi Ben; Tahoon, Mohamed A.

doi:10.3390/pr9050774

Cited by 36 publications

(14 citation statements)

References 53 publications

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“…This was due to hydroxide anion bonding with T2/T3copper site subsequent inhibition in the enzyme activity which affected electron transfer during oxidation (Sousa et al 2021). Amari et al (2021) reported that the laccase from T.versicolor had an optimum pH in acidic conditions and correlated with the current result.…”

Section: Dye Decolorization Box-behnken Methodssupporting

confidence: 73%

Ameliorating Direct Blue Dye Degradation Using Trametes versicolor Derived Laccase Enzyme Optimized through Box–Behnken Design (BBD) via Submerged Fermentation

et al. 2022

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The major intend of this study was to elucidate the laccase production by Trametes versicolor under submerged fermentation using fruit waste peel as substrate. The textile dye was decolorized by the procured crude enzymatic extract using the response surface methodology. The submerged media with organic fruit peel waste extract (jackfruit, pineapple & kaffir) supplemented with gypsum, calcium carbonate, and nutrient broth were considered superior for laccase production. The produced laccase enzyme was used in dye decolorization at the optimum conditions using the Box-Behnken design. Subsequently, the experiment was designed with four variables (dye concentration, pH, temperature & time) with three factors to achieve the maximum direct blue dye decolorization. The highest laccase activity level was obtained from jackfruit peel extract with 3.86U/ml on 15th day at 25oC with pH 5.0 when compared to the other two extracts. The maximum laccase activity with guaiacol was obtained at optimum pH 4 and 40oC. The predicted value was experimentally validated by attaining 81.25% of dye color removal. From the result, the optimum conditions for direct blue color removal were: dye concentration 40ppm, pH 4.0, temperature 40oC at 24 hours. From the results of this study, it was concluded that the jack fruit peel was a more suitable substrate for laccase production. The dye decolorization results were recommended that Box-Behnken design for parameters optimization. The T. versicolor laccase was more proficient for textile dye decolorization. The opportunity was created by using the laccase enzyme for the biological treatment of textile dyeing effluent before discharging into the environment.

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Section: Dye Decolorization Box-behnken Methodssupporting

confidence: 73%

Ameliorating Direct Blue Dye Degradation Using Trametes versicolor Derived Laccase Enzyme Optimized through Box–Behnken Design (BBD) via Submerged Fermentation

et al. 2022

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“…Furthermore, the efficiency of the removal of C.I. Reactive Black 5 varied depending on the support used: TiO 2 /ZrO 2 (15%), Fe 3 O 4 -MWCNT@SiO 2 (80%), magnetic chitosan nanoparticles (90%), Fe 3 O 4 -NH 2 @MIL-101 (Cr) (65%) [39,[50][51][52][53]. It is noteworthy that the biocatalytic system presented in this study also removed C.I.…”

Section: Decolorization Of Organic Dyes By the Tio 2 /Zno/ltv Biocatalytic Systemmentioning

confidence: 78%

Catalytic and Physicochemical Evaluation of a TiO2/ZnO/Laccase Biocatalytic System: Application in the Decolorization of Azo and Anthraquinone Dyes

Kołodziejczak-Radzimska

Zembrzuska

Siwińska-Ciesielczyk

et al. 2021

Materials

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A TiO2/ZnO oxide system was proposed as a support for the immobilization of laccase from Trametes versicolor (LTV). The obtained TiO2/ZnO/LTV biocatalytic system was then applied in the decolorization/degradation of C.I. Reactive Black 5 and C.I. Acid Green 25 dyes. The efficiency of immobilization was evaluated based on catalytic properties (Bradford method, oxidation reaction of 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)) and physicochemical (spectroscopic, porous, electrokinetic) analysis. The immobilization process was carried out with high performance (99.4%). Immobilized laccase retained about 40% of its activity in the whole analyzed temperature range and after 10 reaction cycles. Immobilization efficiency was also indirectly confirmed by the presence of characteristic functional groups (–C–H and –C–O), nitrogen and carbon on the TiO2/ZnO/LTV biocatalytic surface, identified by spectroscopic analyses. The increase in the surface area to 126 m2/g, change of isoelectric point (2.0) and zeta potential ranges (from +12.0 to −20.0 mV) after the immobilization process were also observed. The results show that the designed biocatalytic system enables the removal of acid dyes (C.I. Reactive Black 5 and C.I. Acid Green 25) with high efficiency (99% and 70%, respectively). Mass spectroscopy analysis indicated possible degradation products formed by the cleavage of N=N and C–N bonds.

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“…Although adsorption efficiency is offered by the nanomaterials, it is not easy to recollect the used adsorbents after the pollutant adsorption. Interestingly, several magnetic nanomaterials have been used for the adsorption of contaminants from aqueous media due to their ease of separation by an external magnet, large surface area, and simple functionalization [34][35][36][37][38][39]. By using magnetic nanomaterials, filtration and centrifugation conducted after the adsorption process become unnecessary as they are replaced with an easy magnetic separation.…”

Section: Introductionmentioning

confidence: 99%

Polyethylenimine-Modified Magnetic Chitosan for the Uptake of Arsenic from Water

et al. 2021

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The removal of heavy metals from water has become a global environmental problem. Various materials have been applied as adsorbent to remove metals from water. In this field, nanomaterials have been gaining increasing interest due to their exceptional properties. In this work, we discuss the synthesis of a core-shell structure nanocomposite by the modification of magnetic chitosan (CS) (Fe3O4/CS) with polyethylenimine (PEI) to produce Fe3O4/CS/PEI composite for the adsorption of arsenic ions (As(V) and As(III)) from aqueous solution. The synthesized materials were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), transmission electron microscope (TEM), and vibrating sample magnetometer (VSM). The results indicated the successful combination of three components of the nanocomposite. The adsorption conditions were optimized by studying the effect of different parameters included pH, contact time, initial concentration, and adsorbent dosage. The optimum adsorption pH was found to be 6.7 while the optimum adsorbent dosage was found to be 2.0 and 1.5 g/L for As(III) and As(V), respectively. The removal efficiency for the uptake of As(III) and As(V) ions over Fe3O4/CS/PEI nanocomposite at optimum conditions was found to be 99.5 and 99.7%, respectively. The experimental results were fitted using Freundlich’s and Langmuir’s isotherms. The data were more fitted to Langmuir isotherm providing a suggestion of monolayer adsorption with maximum adsorption capacity equal to 77.61 and 86.50 mg/g for the removal of As(III) and As(V), respectively. Moreover, linear regression coefficient (R2) indicated that the adsorption of arsenic ions over the synthesized magnetic nanocomposite obeyed pseudo 2nd order suggesting the chemisorption process. The reusability of the nanosorbent for arsenic uptake using sodium hydroxide as eluent was also assessed up to five cycles. Interestingly, Fe3O4/CS/PEI nanocomposite can be considered as a promising adsorbent for As ions’ removal from water and should be tested for the removal of other pollutants.

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Magnetic Metal Organic Framework Immobilized Laccase for Wastewater Decolorization

Cited by 36 publications

References 53 publications

Ameliorating Direct Blue Dye Degradation Using Trametes versicolor Derived Laccase Enzyme Optimized through Box–Behnken Design (BBD) via Submerged Fermentation

Ameliorating Direct Blue Dye Degradation Using Trametes versicolor Derived Laccase Enzyme Optimized through Box–Behnken Design (BBD) via Submerged Fermentation

Catalytic and Physicochemical Evaluation of a TiO2/ZnO/Laccase Biocatalytic System: Application in the Decolorization of Azo and Anthraquinone Dyes

Polyethylenimine-Modified Magnetic Chitosan for the Uptake of Arsenic from Water

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