Review on Methylene Blue: Its Properties, Uses, Toxicity and Photodegradation

Water, Journal Year: 2022, Volume and Issue: 14(2), P. 242 - 242

Published: Jan. 14, 2022

The unavailability of clean drinking water is one the significant health issues in modern times. Industrial dyes are dominant chemicals that make unfit for drinking. Among these dyes, methylene blue (MB) toxic, carcinogenic, and non-biodegradable can cause a severe threat to human environmental safety. It usually released natural sources, which becomes beings living organisms. Hence, there need develop an environmentally friendly, efficient technology removing MB from wastewater. Photodegradation advanced oxidation process widely used removal. has advantages complete mineralization dye into simple nontoxic species with potential decrease processing cost. This review provides tutorial basis readers working degradation research area. We not only covered basic principles but also provided wide range previously published work on photocatalytic systems (single-component multi-component photocatalysts). Our study focused critical parameters affect photodegradation rate MB, such as photocatalyst type loading, irradiation reaction time, pH media, initial concentration dye, radical scavengers oxidising agents. mechanism, pathways, intermediate products, final products summarized. An overview future perspectives utilize at industrial scale provided. paper identifies strategies development effective systems.

Language: Английский

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Photocatalytic degradation of methylene blue, rhodamine B, methyl orange and Eriochrome black T dyes by modified ZnO nanocatalysts: A concise review

Inorganic Chemistry Communications, Journal Year: 2022, Volume and Issue: 143, P. 109764 - 109764

Published: July 14, 2022

Language: Английский

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Elimination of rhodamine B from textile wastewater using nanoparticle photocatalysts: A review for sustainable approaches

Chemosphere, Journal Year: 2021, Volume and Issue: 287, P. 132162 - 132162

Published: Sept. 11, 2021

Language: Английский

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Photocatalytic degradation of hazardous Rhodamine B dye using sol-gel mediated ultrasonic hydrothermal synthesized of ZnO nanoparticles

Results in Engineering, Journal Year: 2023, Volume and Issue: 17, P. 100890 - 100890

Published: Jan. 13, 2023

The present study is focused on the sol-gel ultrasonic hydrothermal synthesis of zinc oxide (ZnO) nanoparticles and its application in degradation Rhodamine B (RhB) dye. ZnO were synthesized with varying temperatures at 90 °C, 190 °C 550 °C. Zinc nitrate hexahydrate [Zn(NO3)2·6H2O] potassium hydroxide used to prepare investigated using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) diffuse reflectance spectroscopy (DRS) for crystallinity, surface morphology, band gap, respectively. Results obtained from XRD analysis shows that are hexagonal structure crystalline size ranged 21.1–32.41 nm. effects temperature show increased increasing morphology by FESEM. DRS calculate gap 3.26 eV 3.25 3.23 optimal condition was determined response methodology (RSM) based Box Behnken design (BBD) method. We found material exhibits a smaller size, providing larger area photocatalytic RhB Energy saved as it low temperatures. maximum removal efficiency Rohdamine dye (25 mg/L) 95% optimized conditions i.e. pH 7, 2 g/L catalyst dose after 70 min ultraviolet treatment.

Language: Английский

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A review on ZnO and its modifications for photocatalytic degradation of prominent textile effluents: Synthesis, mechanisms, and future directions

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112553 - 112553

Published: March 22, 2024

Language: Английский

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Emerging aspects of metal ions-doped zinc oxide photocatalysts in degradation of organic dyes and pharmaceutical pollutants – A review

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 344, P. 118614 - 118614

Published: July 14, 2023

Language: Английский

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Recent advances in the synthesis, characterization and biomedical applications of zinc oxide nanoparticles

Bioprocess and Biosystems Engineering, Journal Year: 2023, Volume and Issue: 46(10), P. 1377 - 1398

Published: June 9, 2023

Language: Английский

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Recent progress on plant extract-mediated biosynthesis of ZnO-based nanocatalysts for environmental remediation: Challenges and future outlooks

Advances in Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 317, P. 102931 - 102931

Published: May 25, 2023

Language: Английский

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Visible-light induced tetracycline degradation catalyzed by dual Z-scheme InVO4/CuBi2O4/BiVO4 composites: The roles of oxygen vacancies and interfacial chemical bonds

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 473, P. 145278 - 145278

Published: Aug. 7, 2023

Language: Английский

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Synthesis of CuO, ZnO nanoparticles, and CuO-ZnO nanocomposite for enhanced photocatalytic degradation of Rhodamine B: a comparative study

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: April 27, 2024

Abstract Water pollution, arising from the presence of toxic dyes and chemicals, is a global challenge, urging need for eco-friendly solutions in water decontamination. This study focused on synthesis copper oxide nanoparticles (CuO NPs), zinc (ZnO bimetallic CuO-ZnO nanocomposite (CZ NC) through an environmentally friendly method employing Tragia involucrata L. leaf extract. Comprehensive analysis structural optical properties involved using various analytical techniques such as XRD, FT-IR, XPS, UV-DRS, PL, FE-SEM, EDAX, TEM, SAED, zeta potential, TGA, BET. In comparison to pristine CuO ZnO NPs, CZ-NC demonstrated notably enhanced photocatalytic activity degradation Rhodamine B dye (RhB). The optimum conditions RhB were found be pH 9 catalyst dosage 1 mg/mL concentration 10 ppm. Under these conditions, high efficiencies 78%, 83%, 96.1% respectively over 105 min. Through LC-HRMS, identification products offered valuable insights into pathway degradation. Furthermore, toxicity intermediates, conducted ECOSAR software, indicated formation non-toxic by-products (ChV/LC 50 /EC > 100) after completion reaction. recycled catalysts exhibited sustained stability up 4 cycles, with only minor decrease 6.8%. confirms their catalytic efficacy purifying polluted water. research significantly contributes progress nanocomposites, enhancing realm environmental remediation.

Language: Английский

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