Recent advances in the removal of dyes from wastewater using low-cost adsorbents

Bilal, Muhammad; Ihsanullah, Ihsanullah; Shah, Mansoor Ul Hassan; Reddy, Ambavaram Vijaya Bhaskar; Aminabhavi, Tejraj M.

doi:10.1016/j.jenvman.2022.115981

Cited by 126 publications

(47 citation statements)

References 284 publications

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“…Adsorption is considered to be an attractive alternative since it stands out through operation simplicity, avoidance of supplementary chemicals, and nonexistence of undesirable products [ 36 ]. Numerous adsorbents such as activated carbon [ 37 , 38 , 39 ], silicates [ 40 ], porous geopolymers [ 41 ], materials prepared from agricultural wastes [ 42 , 43 ] or obtained from biomass residue [ 44 ], materials containing nanoparticles of various oxides [ 45 , 46 , 47 ], composites [ 48 , 49 ], etc., are reported as favorable adsorbents. They possess important surface area, high pore sizes, and structures permitting high affinity with various compounds; therefore, they are listed as efficiently retaining colored contaminants from aqueous media.…”

Section: Introductionmentioning

confidence: 99%

Performance of Dye Removal from Single and Binary Component Systems by Adsorption on Composite Hydrogel Beads Derived from Fruits Wastes Entrapped in Natural Polymeric Matrix

Grigoraș

Simion

Favier

et al. 2022

Gels

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The treatment of contaminated water is currently a major concern worldwide. This work was directed towards the preparation of a composite hydrogel by entrapping cherry stones powder on chitosan, which is known as one of the most abundant natural polymers. The synthesized material was characterized by scanning electron microscopy, by Fourier transform infrared spectroscopy, and by the point of zero charge determination. Its ability to remove two azo dyes models (Acid Red 66 and Reactive Black 5) existing in single form and in binary mixture was evaluated. Response Surface Methodology–Central Composite Design was used to optimize three parameters affecting the process while targeting the lowest final contaminant concentrations. The best results were obtained at pH 2, an adsorbent dose of 100 g/L, and a temperature of 30 °C, when more than 90% of the pollutants from the single component systems and more than 70% of those of the binary mixtures were removed from their aqueous solutions. The adsorption process was in accordance with Elovich and pseudo-second-order kinetic models, and closely followed the Freundlich and Temkin equilibrium isotherms. The obtained results led to the conclusion that the prepared hydrogel composite possesses the ability to successfully retain the target molecules and that it can be considered as a viable adsorbent material.

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Section: Introductionmentioning

confidence: 99%

Performance of Dye Removal from Single and Binary Component Systems by Adsorption on Composite Hydrogel Beads Derived from Fruits Wastes Entrapped in Natural Polymeric Matrix

Grigoraș

Simion

Favier

et al. 2022

Gels

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“…The concentration of the tartrazine dye was measured at 428 nm using a Shimadzu UV-1650 PC UV/Vis spectrophotometer. The effects of pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12), contact time (5-90 min), concentration of the tartrazine (150-300 mg L −1 ), and temperature (298-328 K) were investigated.…”

Section: Removal Of the Tartrazine Dye From Aqueous Mediamentioning

confidence: 99%

“…The discovery of perfect water treatment methods is still a challenge for scientists, while industrialization and urbanization have a signicant impact on living beings. [1][2][3] Azo dyes containing the -N]Nfunctional group are commonly utilized in the food processing, textile, and pharmaceutical industries. The release of these compounds into the environment causes water pollution.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis and characterization of magnesium and manganese mixed oxides for the efficient removal of tartrazine dye from aqueous media

et al. 2023

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“…Recently, numerous adsorbents have been synthesized and modified for the adsorptive removal of organic dyes. Research findings have shown that various adsorbents such as bio-adsorbents, carbon-based materials, polymer-based materials, metal oxides, metal metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) have been used to remove dyes from wastewater (Adegoke et al, 2022;Bilal et al, 2022;Dutta et al, 2021;Kausar et al, 2023;Lan et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Adsorption activity of spent coffee ground biochar for the removal of Vivizole Red 3BS dye from aqueous solution

Adamu

Zewge

Chebude

2023

Preprint

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Spent coffee ground (SCG) is rich in carbon, and slow pyrolysis can convert biomass into biochar that can be used as an adsorbent to remove dyes. In one-step carbonization and activation of SCG, iron (III) chloride and K2CO3 were used as a catalyst and solid-state activator, respectively. The predictive model for the removal of the dye by the activated SCG biochar was evaluated through response surface methodology- central composite design (RSM-CCD). ANOVA result analysis showed that among the model terms, the effect of pH was the most significant in removing the Vivizole Red 3 BS 150 % (VR 3BS) dye. The optimum values suggested by the CCD were an initial dye concentration of 20 mg/L, pH 3, an adsorbent dose of 0.5 g per 100 mL, and a contact time of 60 min, where the optimum removal of the dye was 94 %. The optimum conditions were validated using synthetic and textile wastewater, and the percent removals of the VR 3BS dye by the activated SCG were 96% and 90 %, respectively. The dye removal efficiency of activated SCG biochar was more significant than that of commercial activated carbon. The Langmuir model best described the adsorption isotherm. Adsorption kinetic data fitted well to the pseudo-second-order model. Both intraparticle and film diffusions affected the dye's adsorption rate. The thermodynamics study has shown that the adsorption process was a spontaneous, less random, exothermic process governed by a physical sorption mechanism. Thermal regeneration of the exhausted biochar improved VR 3BS dye removal efficiency.

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Recent advances in the removal of dyes from wastewater using low-cost adsorbents

Cited by 126 publications

References 284 publications

Performance of Dye Removal from Single and Binary Component Systems by Adsorption on Composite Hydrogel Beads Derived from Fruits Wastes Entrapped in Natural Polymeric Matrix

Performance of Dye Removal from Single and Binary Component Systems by Adsorption on Composite Hydrogel Beads Derived from Fruits Wastes Entrapped in Natural Polymeric Matrix

Facile synthesis and characterization of magnesium and manganese mixed oxides for the efficient removal of tartrazine dye from aqueous media

Adsorption activity of spent coffee ground biochar for the removal of Vivizole Red 3BS dye from aqueous solution

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