Visible light assisted photoelectrocatalytic degradation of sugarcane factory wastewater by sprayed CZTS thin films

Hunge, Y.M.; Mahadik, Mahadeo A.; Patil, Vithoba L.; Pawar, and Rajesh; Gadakh, S.R; Moholkar, A.V.; Patil, Pramod S.; Bhosale, C.H.

doi:10.1016/j.jpcs.2017.07.023

Cited by 49 publications

(7 citation statements)

References 32 publications

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“…Widespread use of chemicals in various industries in the world results in the production of a large amount of wastewater (1). There is a large amount of chemicals in industrial wastewater.…”

Section: Introductionmentioning

confidence: 99%

Comparing the ZnO/Fe(VI), UV/ZnO and UV/Fe(VI) processes for removal of Reactive Blue 203 from aqueous solution

Talaiekhozani

Banisharif

Bazrafshan³

et al. 2019

Environ Health Eng Manag

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Background: Wastewater contaminated with dyes such as Reactive Blue 203 can produce a lot of health problems if it is released into the environment without a suitable treatment. Although there are several studies on dye removal from wastewater, removal of Reactive Blue 203 has not been investigated by hybrid methods. Therefore, the aim of this study was to investigate the removal of Reactive Blue 203 from aqueous solution, using combined processes of zinc oxide (ZnO) nanoparticles, Fe(VI) oxidation process, and UV radiation. Methods: The removal of dye from aqueous solution using ZnO nanoparticles, Fe(VI) oxidation process, and UV radiation was individually evaluated. Then, the results of combined methods were compared. Hydraulic retention time (HRT), pH, and temperature were the most important factors which were investigated in this study. Results: ZnO nanoparticles, Fe(VI) oxidation process, and UV radiation were able to remove 97%, 71%, and 47% of the dye in the optimal conditions, respectively. Also, the removal of dye using combination of Fe(VI) oxidation process/UV radiation, ZnO nanoparticles/Fe(VI) oxidation process, and ZnO nanoparticles/UV radiation under optimum conditions was 100%. It seems that the combined methods were significantly more effective than the methods alone for removal of dye from water. Conclusion: UV radiation alone is a simple and efficient method for removal of Reactive Blue 203 from water. Removal of Reactive Blue 203 using Fe(VI) oxidation process can be completed in a fraction of second, therefore, it can be categorized as a rapid reaction.

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Section: Introductionmentioning

confidence: 99%

Comparing the ZnO/Fe(VI), UV/ZnO and UV/Fe(VI) processes for removal of Reactive Blue 203 from aqueous solution

Talaiekhozani

Banisharif

Bazrafshan³

et al. 2019

Environ Health Eng Manag

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“…Considering the environment remediation issue, semiconductor chalcogenide nanomaterials have shown remarkable improvement in efficiencies evaluated for photocatalytic waste water treatment from pollutants such as carcinogenic dyes ,. However, immensely explored metal oxide such as TiO 2 is an excellent photocatalyst due to its low cost and environment friendliness but its large band gap energy of 3.2 eV is a drawback which makes it active photocatalyst only under ultraviolet radiation .…”

Section: Photoelectrochemical and Photocatalytic Applicationsmentioning

confidence: 99%

Multifunctional Copper‐Based Quaternary Chalcogenide Semiconductors Toward State‐of‐the‐Art Energy Applications

Kush

Deka

2018

ChemNanoMat

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Cu-based quaternary chalcogenide semiconductors have been attractive materials in many aspects since the last decade. Most of the scientific literature about quaternary chalcogenides is dedicated to photovoltaic (PV) research with no astonishment as the material initially emerged as a costeffective replacement of expensive Si for PV applications. These materials possess all the important properties such as, abundant and non-toxic constituent elements, efficient charge transport, optimum band gap, and high absorption coefficient for being an efficient PV material in either thin film or nanoparticle form. However, in the recent few years, a new range of quaternary materials Cu 2 M I M II X 4 (where, M I =Zn, Ni, Co, Fe, Mn, Cd and Hg; M II =Si, Sn and Ge and X=S and/or Se) have evolved and found applications in thermoelectrics, photocatalysis and photoelectrocatalysis, sensors and bat-teries etc. The combination of properties exhibited by these quaternary chalcogenides such as optical and electric, optical and magnetic, electric and thermal makes them potential materials, which could be utilized in multiple applications. Although the PV properties of these quaternary chalcogenides has been discussed earlier in many reports, the other versatile applications of the material have not been reviewed yet. The present article sheds light on the multifunctional aspects of various new Cu-based quaternary chalcogenides, their synthesis, effect of doping on their properties, and then elaborating the discussion on their chemical and physical properties that are helpful in different applications along with photovoltaics. Here, we discuss synthetic methods bestowing enhanced features and also summarize their achieved efficiency in recent years. Scheme 1. Schematic representation for the derivation of quaternary chalcogenides. 2 3 4 5 6 7 8

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“…The electrolyte was re circulated through the single PEC reactor with a constant flow rate 14.4 l/hr. using a Gilson MINIPLUS peristaltic pump, made in France with silicon tubing [12,13]. The concentration of methylene blue in the solutions was determined at the time interval of 0, 10, 20, 30, 40, 50 and 60 minutes by measuring the extinction coefficient using a UVVis -NIR spectrophotometer.…”

Section: Photoelectrocatalytic Degradationmentioning

confidence: 99%

Photoelectrocatalytic Degradation of Methylene Blue using Spray Deposited Zno Thin Films under UV Illumination

Hunge¹

2017

MOJPS

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ZnO thin films have been deposited onto glass and FTO coated glass substrates using spray pyrolysis method. The structural, morphological, compositional and photocatalytic properties of ZnO thin films are studied. The photoelectrochemical (PEC) study shows that, both short circuit current (Isc) and open circuit voltage (Voc) are (Isc = 0.575 mA and Voc = 0.425 V) relatively higher at 450°C substrate temperature. The structure and morphological properties of ZnO thin films are studied by X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM). XRD study reveals that the films are polycrystalline in nature with hexagonal crystal structure. FE-SEM images show that the substrate surface is well covered with a uniform and ball like morphology. Photoelectrocatalytic degradation of methylene blue dye in aqueous solutions is studied. The end result shows that the degradation percentage of methylene blue using ZnO photoelectrode has reached 95% under ultraviolet light illumination after 60 min.

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Visible light assisted photoelectrocatalytic degradation of sugarcane factory wastewater by sprayed CZTS thin films

Cited by 49 publications

References 32 publications

Comparing the ZnO/Fe(VI), UV/ZnO and UV/Fe(VI) processes for removal of Reactive Blue 203 from aqueous solution

Comparing the ZnO/Fe(VI), UV/ZnO and UV/Fe(VI) processes for removal of Reactive Blue 203 from aqueous solution

Multifunctional Copper‐Based Quaternary Chalcogenide Semiconductors Toward State‐of‐the‐Art Energy Applications

Photoelectrocatalytic Degradation of Methylene Blue using Spray Deposited Zno Thin Films under UV Illumination

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