Photocatalytic degradation of highly toxic dyes using chitosan-g-poly(acrylamide)/ZnS in presence of solar irradiation

Pathania, Deepak; Gupta, Divya; Al-Muhtaseb, Ala’a H.; Sharma, Gaurav; Kumar, Amit; Naushad, Mu.; Ahamad, Tansir; Alshehri, Saad M.

doi:10.1016/j.jphotochem.2016.06.019

Cited by 223 publications

(53 citation statements)

References 65 publications

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“…The precipitates were then added to the mixture of 0.1 M ferric nitrate and 0.1 M zinc nitrate solution and stirred for 4 h. Finally, precipitates were filtered and added to the 0.1 M solution of sodium borohydride, and the solution was made to remain as such for 3 h. The obtained precipitates were filtered, washed and dried in hot air oven at 50°C. The % yield of the reaction was calculated by using following formula [32]:…”

Section: Methodsmentioning

confidence: 99%

Fabrication and characterization of a nanocomposite hydrogel for combined photocatalytic degradation of a mixture of malachite green and fast green dye

Sharma

ALOthman

Kumar

et al. 2017

Nanotechnol. Environ. Eng.

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In this study, starch/poly(alginic acid-cl-acrylamide)/Fe/Zn nanocomposite hydrogel (ST/PL(AA-clAAm)/Fe/Zn NCHG) was synthesized by polymerization/ co-precipitation method. This nanocomposite hydrogel was prepared with the notion to remove the mixture of organic pollutants from the water system. Mixture of malachite green and fast green dye was used to check the photocatalytic degradation ability of the prepared nanocomposite hydrogel. ST/PL(AA-cl-AAm)/Fe/Zn NCHG was characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy and Fourier transform infrared. The degradation of the two dyes followed the pseudo-first-order kinetics. The results showed that by using the prepared nanocomposite hydrogel, 91% of malachite green and 82% of fast green dye, respectively, were degraded within 5 h of their contact.

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Section: Methodsmentioning

confidence: 99%

Fabrication and characterization of a nanocomposite hydrogel for combined photocatalytic degradation of a mixture of malachite green and fast green dye

Sharma

ALOthman

Kumar

et al. 2017

Nanotechnol. Environ. Eng.

Self Cite

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“…Metal semiconductor materials, such as TiO 2 [8], ZnO [9], Fe 2 O 3 [10], CdS [11], and ZnS [12], are used as photocatalyst. These cost-efficient, effective, and environment-friendly materials can be used to alleviate environmental problems.…”

Section: Introductionmentioning

confidence: 99%

Preparation of ZnO Photocatalyst for the Efficient and Rapid Photocatalytic Degradation of Azo Dyes

et al. 2017

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Zinc oxide (ZnO) photocatalysts were synthesized by sol–gel method using zinc acetate as precursor for degradation of azo dyes under UV irradiation. The resultant samples were characterized by different techniques, such as XRD, SEM, and EDX. The influence of preparation conditions such as calcination temperature and composite ratio on the degradation of methyl orange (MO) was investigated. ZnO prepared with a composite ratio of 4:1 and calcination temperature of 400 °C exhibited 99.70% removal rate for MO. The effect of operation parameters on the degradation was also studied. Results showed that the removal rate of azo dyes increased with the increased dosage of catalyst and decreased initial concentration of azo dyes and the acidic condition is favorable for degradation. Furthermore, the kinetics and scavengers of the reactive species during the degradation were also investigated. It was found that the degradation of azo dyes fitted the first-order kinetics and superoxide ions were the main species. The proposed photocatalyst can efficiently and rapidly degrade azo dyes; thus, this economical and environment-friendly photocatalyst can be applied to the treatment of wastewater contaminated with synthetic dyes.

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“…Electrochemical processes, exchanging ions, flotation, coagulation-flocculation, biotic processing, adsorption, reverse osmosis, as well as separation membranes, were widely used for the elimination of organic and inorganic pollutants [10][11][12][13][14][15][16]. However, the adsorption technique is the most widely used technique among all methods due to its cheapness, simplicity, and effectiveness [17].…”

Section: Introductionmentioning

confidence: 99%

Iron Oxide/Chitosan Magnetic Nanocomposite Immobilized Manganese Peroxidase for Decolorization of Textile Wastewater

et al. 2019

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Because of its effectiveness in organic pollutant degradation, manganese peroxidase (MnP) enzyme has attracted significant attention in recent years regarding its use for wastewater treatment. Herein, MnP was extracted from Anthracophyllum discolor fungi and immobilized on the surface of magnetic nanocomposite Fe 3 O 4 /chitosan. The prepared nanocomposite offered a high surface area for MnP immobilization. The influence of several environmental factors like temperature, pH, as well as storage duration on the activity of the extracted enzyme has been studied. Fourier transmission infrared spectroscopy (FT-IR), scanning electron microscope (SEM), X-ray diffraction (XRD), and transmission electron microscope (TEM) techniques were used for the characterization of the prepared MnP/Fe 3 O 4 /chitosan nanocomposite. The efficiencies of the prepared MnP/Fe 3 O 4 /chitosan nanocomposite for the elimination of reactive orange 16 (RO 16) and methylene blue (MB) industrial dyes were determined. According to the results, the immobilization of MnP on Fe 3 O 4 /chitosan nanocomposite increases its capacity to decolorize MB and RO 16. This nanocomposite allowed the removal of 96% ± 2% and 98% ± 2% of MB and RO 16, respectively. The reusability of the synthesized nanocomposite was studied for five successive cycles showing the ability to retain its efficiency even after five cycles. Thus, the prepared MnP/Fe 3 O 4 /chitosan nanocomposite has potential to be a promising material for textile wastewater bioremediation.

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Photocatalytic degradation of highly toxic dyes using chitosan-g-poly(acrylamide)/ZnS in presence of solar irradiation

Cited by 223 publications

References 65 publications

Fabrication and characterization of a nanocomposite hydrogel for combined photocatalytic degradation of a mixture of malachite green and fast green dye

Fabrication and characterization of a nanocomposite hydrogel for combined photocatalytic degradation of a mixture of malachite green and fast green dye

Preparation of ZnO Photocatalyst for the Efficient and Rapid Photocatalytic Degradation of Azo Dyes

Iron Oxide/Chitosan Magnetic Nanocomposite Immobilized Manganese Peroxidase for Decolorization of Textile Wastewater

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