Application of Novel Modified Chitosan Hydrogel Composite for the Efficient Removal of Eriochrome Black T and Methylene Blue Dyes from Aqueous Media

Al-Wasidi, Asma S.; Abouelreash, Yasmeen G.; AlReshaidan, Salwa; Naglah, Ahmed M.

doi:10.1007/s10904-021-02168-x

Cited by 23 publications

(5 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Al-Wasidi et al [ 98 ] give information about a hydrogel made of chitosan, Fe 3 O 4, and graphene oxide and its utilization in the adsorption of Eriochrome black T and Methylene blue dyes. For the desorption, they used HCl for Eriochrome black T and NaOH for Methylene blue.…”

Section: Resultsmentioning

confidence: 99%

Hydrogels Based on Chitosan and Nanoparticles and Their Suitability for Dyes Adsorption from Aqueous Media: Assessment of the Last-Decade Progresses

Grigoraș,

Simion,

Drob

2024

Gels

View full text Add to dashboard Cite

Water is one of the fundamental resources for the existence of humans and the environment. Throughout time, due to urbanization, expanding population, increased agricultural production, and intense industrialization, significant pollution with persistent contaminants has been noted, placing the water quality in danger. As a consequence, different procedures and various technologies have been tested and used in order to ensure that water sources are safe for use. The adsorption process is often considered for wastewater treatment due to its straightforward design, low investment cost, availability, avoidance of additional chemicals, lack of undesirable byproducts, and demonstrated significant efficacious potential for treating and eliminating organic contaminants. To accomplish its application, the need to develop innovative materials has become an essential goal. In this context, an overview of recent advances in hydrogels based on chitosan and nanocomposites and their application for the depollution of wastewater contaminated with dyes is reported herein. The present review focuses on (i) the challenges raised by the synthesis process and characterization of the different hydrogels; (ii) the discussion of the impact of the main parameters affecting the adsorption process; (iii) the understanding of the adsorption isotherms, kinetics, and thermodynamic behavior; and (iv) the examination of the possibility of recycling and reusing the hydrogels.

show abstract

Section: Resultsmentioning

confidence: 99%

Hydrogels Based on Chitosan and Nanoparticles and Their Suitability for Dyes Adsorption from Aqueous Media: Assessment of the Last-Decade Progresses

Grigoraș,

Simion,

Drob

2024

Gels

View full text Add to dashboard Cite

show abstract

“…However, at pH values greater than 7, the efficacy of the hydrogel decreases significantly. In an alkaline medium (pH >7), the presence of Na + ions screens the ionic interactions, causing the hydrogel to behave as if it were uncharged [53][54][55]. The results demonstrate that the synthesized hydrogel can serve as an effective adsorbent for MG dye over a wide pH range.…”

Section: The Effect Of Various Parameters On Removal Efficiency Of Gg...mentioning

confidence: 89%

Novel hydrogel based on natural hybrid backbones: Optimized synthesis and effective adsorbent for the removal of dye from an aqueous solution

Kumawat,

Nair,

Choudhary

et al. 2024

Preprint

View full text Add to dashboard Cite

In this study, we synthesized a novel hydrogel, GG/LBG-g-poly(AAm), utilizing a hybrid backbone composed of guar gum, locust bean gum, and acrylamide. The cross-linker N, N-Methylene-bis-acrylamide, and the initiator ammonium persulfate were employed in the synthesis process. Response surface methodology and a full factorial rotatable central composite design were used to optimize various reaction parameters to enhance the percentage swelling of the synthesized hydrogel. This optimization resulted in a notable increase in swelling capacity, reaching 1050%. The incorporation of acrylamide chains onto the guar-locust bean gum-based hybrid backbone, as well as crosslinking between different polymeric chains, was confirmed through various characterization techniques, including FTIR, TGA, XRD, FE-SEM, wettability studies, and zeta potential analysis. We investigated the hydrogel’s adsorption performance for malachite green (MG), varying pH, contact time, adsorbent dose, and dye concentration. Under ambient conditions, GG/LBG-g-poly(AAm) demonstrated a maximum adsorption capacity of 52.96 mg g− 1 and achieved a removal efficiency of 98%. The adsorption data best fit the Freundlich model (R2 = 0.99) and followed pseudo-second-order kinetics, indicating a consistent agreement. Positive values for ΔHo (61.23 KJ/mol) and ΔSo (239.80 J/mol. K) suggest an endothermic adsorption process with a strong affinity for dye molecules. Overall, the synthesized material exhibits significant potential for effectively removing toxic dyes from wastewater.

show abstract

“…Removal rate to MB slightly decreases from 78.32% into 72.31% after six times of regeneration. [ 33 ] Coskun and Delibas studied the reusability of poly(2‐acrylamino‐2‐methylpropane sulfonic acid‐ co ‐itaconic acid) hydrogel by immersing it in 1 mol/L nitric acid (HNO 3 ) solution for 2 h. After washing the hydrogel with distilled water, dried, and reused to adsorb MB pollutant. [ 34 ] Its excellent reusability property is observed after 10 adsorption and desorption cycles.…”

Section: Introductionmentioning

confidence: 99%

Soaking pretreatment of hydrogel adsorbent in distilled water to enhance efficiency of adsorption onto low concentration dye

Wang

et al. 2023

Polymer Engineering & Sci

View full text Add to dashboard Cite

To address the poor removal rate of low-concentration dye adsorption, the soaking pretreatment of hydrogel adsorbent in distilled water was suggested. In contrast to the conventional method of directly adding dried particles into dye solution, the purposed procedure involved adding an adsorbent into distilled water before transferring it into the dye solution. A hydrogel adsorbent based on P(AANa/AM) containing COONa groups was fabricated as an example for the hypothesis. The maximum adsorption capacity of P(AANa/AM) hydrogel adsorbent onto MB was 2455.45 mg/g under an initial MB concentration of 1000 mg/L. After two rounds of soaking pretreatment in distilled water, the clearance rate of 20 mg/L MB increased from 97.79% to 99.40%. Considering the hydrophilicity and ionization of COONa group, a high concentration of Na + was released into solution. Hydrogel soaked multiple times in fresh distilled water induced the continuous release of Na + into distilled water, although the swelling equilibrium was already achieved in the first soak. In dye adsorption and desorption experiments, the water absorption behavior was observed. Overall, this work revealed that the soaking pretreatment of hydrogel adsorbent in distilled water can enhance the removal rate of low concentration dye through adsorption.

show abstract

Application of Novel Modified Chitosan Hydrogel Composite for the Efficient Removal of Eriochrome Black T and Methylene Blue Dyes from Aqueous Media

Cited by 23 publications

References 61 publications

Hydrogels Based on Chitosan and Nanoparticles and Their Suitability for Dyes Adsorption from Aqueous Media: Assessment of the Last-Decade Progresses

Hydrogels Based on Chitosan and Nanoparticles and Their Suitability for Dyes Adsorption from Aqueous Media: Assessment of the Last-Decade Progresses

Novel hydrogel based on natural hybrid backbones: Optimized synthesis and effective adsorbent for the removal of dye from an aqueous solution

Soaking pretreatment of hydrogel adsorbent in distilled water to enhance efficiency of adsorption onto low concentration dye

Contact Info

Product

Resources

About