High adsorptive performance of chitosan-microalgae-carbon-doped TiO2 (kronos)/ salicylaldehyde for brilliant green dye adsorption: Optimization and mechanistic approach

Kashi, Elmira; Surip, S.N.; Khadiran, Tumirah; Nawawi, Wan Izhan; De Luna, Yannis; Yaseen, Zaher Mundher; Jawad, Ali H.

doi:10.1016/j.ijbiomac.2023.129147

Cited by 17 publications

(1 citation statement)

References 68 publications

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“…Several research studies have examined how varying amounts of adsorbents affect the removal of heavy metals from water solutions (Kaur and Roy, 2021;Guo et al, 2022;). An instance of using TiO 2 -coated chitosan was to eliminate divalent copper and lead ions from water (Razzaz et al, 2016;Kashi et al, 2024). The concentration utilized for this procedure was 2000 mg/L.…”

Section: Adsorbent Dosage Impactmentioning

confidence: 99%

Nano-revolution in heavy metal removal: engineered nanomaterials for cleaner water

Karnwal,

Malik

2024

Front. Environ. Sci.

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Engineered nanomaterials have emerged as a promising technology for water treatment, particularly for removing heavy metals. Their unique physicochemical properties enable them to adsorb large quantities of metals even at low concentrations. This review explores the efficacy of various nanomaterials, including zeolites, polymers, chitosan, metal oxides, and metals, in removing heavy metals from water under different conditions. Functionalization of nanomaterials is a strategy to enhance their separation, stability, and adsorption capacity. Experimental parameters such as pH, adsorbent dosage, temperature, contact time, and ionic strength significantly influence the adsorption process. In comparison, engineered nanomaterials show promise for heavy metal remediation, but several challenges exist, including aggregation, stability, mechanical strength, long-term performance, and scalability. Furthermore, the potential environmental and health impacts of nanomaterials require careful consideration. Future research should focus on addressing these challenges and developing sustainable nanomaterial-based remediation strategies. This will involve interdisciplinary collaboration, adherence to green chemistry principles, and comprehensive risk assessments to ensure the safe and effective deployment of nanomaterials in heavy metal remediation at both lab and large-scale levels.

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Section: Adsorbent Dosage Impactmentioning

confidence: 99%

Nano-revolution in heavy metal removal: engineered nanomaterials for cleaner water

Karnwal,

Malik

2024

Front. Environ. Sci.

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Adsorption Optimization of VNi‐Layered Double Hydroxide Encapsulated With Chitosan and Carboxymethyl Cellulose for Rhodamine B Dye Removal From Aqueous Solutions: Adsorption Isotherm, Kinetics, and Thermodynamics

Abu‐Melha

2024

Applied Organom Chemis

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Industrial dye–contaminated wastewater needs creative techniques to effectively remove these contaminants. An easy co‐precipitation technique was used in this work to create the VNi‐layered double hydroxide (VNi‐LDH) adsorbent. VNi‐LDH was encapsulated with chitosan (CS) and carboxymethyl cellulose (CMC) that cross‐linked with itaconic acid as the cross linker via chemical crosslinking to form VNi‐LDH/CS‐CMC hydrogel beads. FT‐IR, SEM, XPS, BET, XRD, BET, and point of zero charge (pHzpc) were employed to characterize the prepared material. Examining VNi‐LDH/CS‐CMC's ability to remove rhodamine B (RB) from water waste as an adsorbent was the aim of the study. The highest adsorption capacity of RB on VNi‐LDH/CS‐CMC was found to be 653.8 mg/g. The research findings designated that the Langmuir isotherm models provided the most accurate representation of the RB adsorption procedure for VNi‐LDH/CS‐CMC. At a dosage of 0.8 g/L for the adsorbent and an equilibrium time of 100 min, it was established that the RB adsorption of VNi‐LDH/CS‐CMC hydrogel beads occurred at a pH of 8. The model of pseudo‐second order, demonstrating chemisorption with an adsorption energy of 30.34 kJ/mol along with a diffusion‐limited adsorption process, was most appropriate for the RB adsorption kinetics on VNi‐LDH/CS‐CMC hydrogel beads. The impact of temperature was also investigated, with an analysis of the thermodynamic variables (∆H°, ∆S°, and ∆G°) revealing a spontaneous increase in positive enthalpy and entropy charge, along with a decrease in ΔG°, as the temperature rose. The adsorption process outcomes were further optimized using response surface methodology (RSM) and the Box–Behnken design (BBD). It was proposed that the elimination of RB through VNi‐LDH/CS‐CMC may occur through different potential mechanisms, such as chemisorption, pore‐filling, π‐π bonding, electrostatic interactions, and hydrogen bonding. Given that the adsorbent was made of reusable materials and could be reused more than six times with high efficiency, the VNi‐LDH/CS‐CMC hydrogel beads offer a viable low‐cost option for removing RB dye from wastewater streams.

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Decoration of Chitosan-Benzaldehyde/Algae/Coal Fly Ash Adsorbent for Brilliant Green Dye Removal: Box–Benken Design Optimization and Mechanism Approach

Wu,

Suhaimi,

Jawad

et al. 2024

J Inorg Organomet Polym

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High adsorptive performance of chitosan-microalgae-carbon-doped TiO2 (kronos)/ salicylaldehyde for brilliant green dye adsorption: Optimization and mechanistic approach

Cited by 17 publications

References 68 publications

Nano-revolution in heavy metal removal: engineered nanomaterials for cleaner water

Nano-revolution in heavy metal removal: engineered nanomaterials for cleaner water

Adsorption Optimization of VNi‐Layered Double Hydroxide Encapsulated With Chitosan and Carboxymethyl Cellulose for Rhodamine B Dye Removal From Aqueous Solutions: Adsorption Isotherm, Kinetics, and Thermodynamics

Decoration of Chitosan-Benzaldehyde/Algae/Coal Fly Ash Adsorbent for Brilliant Green Dye Removal: Box–Benken Design Optimization and Mechanism Approach

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