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

---

Methylene blue dye: Toxicity and potential elimination technology from wastewater

Results in Engineering, Journal Year: 2022, Volume and Issue: 16, P. 100678 - 100678

Published: Sept. 30, 2022

One of the popular cationic dyes that is environmentally persistent, toxic, carcinogenic and mutagenic methylene blue (MB) dye. It commonly applied as synthetic dye for dyeing fabrics in clothing textile industries also papers leathers. Sequel to magnitude industrial usage, a large volume containing wastewater discharged into groundwater surface water. At doses more than 5 mk/kg, monoamine oxidate inhibitory characteristics MB can induce fatal serotonin toxicity human, apart from being threat fauna aquatic ecosystem. Thus, it highly imperative eliminate wastewaters. A number different removal strategies have been reported literature treating wastewater. In this state-of-the-art review, about 240 review and/or research published articles on methods decontamination or were chosen evaluation. This synthesis discussed various toxicities linked The assessment elimination revealed chemical (photochemical non-photochemical) could generate secondary pollutants while biological are characterized with sensitivity enzyme pH. These drawbacks limit their full-scale applications adsorption technology was found offer merits over others. comprehensively each these techniques gaps areas future highlighted.

Language: Английский

---

Factors Affecting Synthetic Dye Adsorption; Desorption Studies: A Review of Results from the Last Five Years (2017–2021)

Molecules, Journal Year: 2021, Volume and Issue: 26(17), P. 5419 - 5419

Published: Sept. 6, 2021

The primary, most obvious parameter indicating water quality is the color of water. Not only can it be aesthetically disturbing, but also an indicator contamination. Clean, high-quality a valuable, essential asset. Of available technologies for removing dyes, adsorption used method due to its ease use, cost-effectiveness, and high efficiency. process influenced by several parameters, which are basis all laboratories researching optimum conditions. main objective this review provide up-to-date information on studied influencing factors. effects initial dye concentration, pH, adsorbent dosage, particle size temperature illustrated through examples from last five years (2017-2021) research. Moreover, general trends drawn based these findings. removal time ranged 5 min 36 h (E = 100% was achieved within 5-60 min). In addition, nearly 80% efficiency with just 0.05 g adsorbent. It important reduce (with Φ decrease E 8-99%). Among dyes analyzed in paper, Methylene Blue, Congo Red, Malachite Green, Crystal Violet were frequently studied. Our conclusions previously published literature.

Language: Английский

---

Sustainable approaches for removing Rhodamine B dye using agricultural waste adsorbents: A review

Chemosphere, Journal Year: 2021, Volume and Issue: 287, P. 132080 - 132080

Published: Aug. 30, 2021

Language: Английский

---

Recent Developments in the Application of Bio-Waste-Derived Adsorbents for the Removal of Methylene Blue from Wastewater: A Review

Polymers, Journal Year: 2022, Volume and Issue: 14(4), P. 783 - 783

Published: Feb. 17, 2022

Over the last few years, various industries have released wastewater containing high concentrations of dyes straight into ecological system, which has become a major environmental problem (i.e., soil, groundwater, surface water pollution, etc.). The rapid growth textile created an alarming situation in further deterioration to environment been caused due substances being left treated wastewater, including dyes. application activated carbon recently demonstrated be highly efficient technology terms removing methylene blue (MB) from wastewater. Agricultural waste, as well animal-based and wood products, are excellent sources bio-waste for MB remediation since they extremely efficient, sorption capacities, renewable sources. Despite fact that commercial is favored adsorbent dye elimination, its extensive restricted because comparatively cost, prompted researchers investigate alternative adsorbents non-conventional more economical. goal this review article was critically evaluate accessible information on characteristics bio-waste-derived MB's removal, related parameters influencing performance process. also highlighted processing methods developed previous studies. Regeneration processes, economic challenges, valorization post-sorption materials were discussed. This beneficial understanding recent advances status biowaste-derived adsorbents, highlighting accelerating need development low-cost functioning precursor large-scale system optimization.

Language: Английский

---

Adsorptive potential of modified plant-based adsorbents for sequestration of dyes and heavy metals from wastewater - A review

Journal of Water Process Engineering, Journal Year: 2021, Volume and Issue: 42, P. 102148 - 102148

Published: May 25, 2021

Language: Английский

---

Valorization of food waste as adsorbents for toxic dye removal from contaminated waters: A review

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 424, P. 127432 - 127432

Published: Oct. 9, 2021

Language: Английский

---

A comprehensive review on adsorption of methylene blue dye using leaf waste as a bio-sorbent: isotherm adsorption, kinetics, and thermodynamics studies

Environmental Monitoring and Assessment, Journal Year: 2023, Volume and Issue: 195(8)

Published: July 12, 2023

Language: Английский

---

Sulfonated graphene oxide impregnated cellulose acetate floated beads for adsorption of methylene blue dye: optimization using response surface methodology

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: June 4, 2022

Abstract New multi-featured adsorbent beads were fabricated through impregnation of sulfonated graphene (SGO) oxide into cellulose acetate (CA) for fast adsorption cationic methylene blue (MB) dye. The formulated SGO@CA composite thoroughly characterized by several tools including FTIR, TGA, SEM, XRD, XPS and zeta potential. optimal levels the most significant identified variables affecting process sequential determined response surface methodology (RSM) using Plackett–Burman Box–Behnken designs. gained results denoted that displayed higher negative charges (− 42.2 mV) compared to − 35.7 38.7 mV pristine CA SGO, respectively. In addition, floated demonstrated excellent floating property, easy separation. performance was accomplished rapidly, since equilibrium closely gotten within 30 min. Furthermore, capacity greatly improved with increasing SGO content from 10 30%. obtained data followed pseudo-second order kinetic model agreed Langmuir isotherm a maximum reached 234.74 mg g −1 . thermodynamic studies designated spontaneity endothermic nature MB dye adsorption. Besides, exposed acceptable characteristics six successive reuse cycles, in addition their better selectivity towards crystal violet anionic Congo red dyes. These findings assume could be used effectively as highly efficient, separable reusable adsorbents removal toxic

Language: Английский

---

Fe3O4-multiwalled carbon nanotubes-bentonite as adsorbent for removal of methylene blue from aqueous solutions

Chemosphere, Journal Year: 2023, Volume and Issue: 316, P. 137824 - 137824

Published: Jan. 12, 2023

Language: Английский

---