A highly efficient technique to simultaneously remove acidic and basic dyes using magnetic ion-exchange microbeads

Lu, Changchen; Yang, Jiaojiao; Khan, Asghar; Jian, Yang; Li, Qimeng; Wang, Guoxiang

doi:10.1016/j.jenvman.2021.114173

Cited by 40 publications

(7 citation statements)

References 41 publications

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“…Cl − groups and type II resins contain -CH 2 N(CH 3 ) 2 (CH 2 CH 2 OH) + Cl − groups), and (d) weak anion exchange resins of primary (-NH 2 ), secondary (�NH), or tertiary-amine (≡N) functional groups in the chloride or hydroxide form [53]. Lu et al [54] reported the magnetic cation-exchange microbeads for the removal of CV and acid green 9 dye. Cellulose flms were grafted with p(GMA) via the ATRP method, and the epoxy groups were converted into phosphate (RCF-g-p(GMA)-PO 3 H 2 ) and sulfate (RCF-g-p(GMA)-SO 3 H) groups and used for the removal of chlorazole Black E by Bayramoglu and Arica [55].…”

Section: Phytoremediationmentioning

confidence: 99%

Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes

Chowdhury,

Anantharaju,

Keshavamurthy

et al. 2023

Journal of Chemistry

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In recent decades, the textile industry has contributed to continuous pollution in the environment. Synthetic dyes which are commonly found in waste water are azo, sulfur, anthraquinone, triphenylmethyl, indigoid, and phthalocyanine derivatives. These pollutants block the light penetration in water bodies and prevent photosynthesis activity, thereby affecting aquatic life. As an environmental crisis, several technologies have been explored to control pollution. Among all the techniques, the photocatalysis process is considered as a green, simple, and economical process. To improve the photocatalytic activity, researchers worldwide have investigated various photocatalysts such as metal oxides, metal ferrites, and heterostructured nanocomposites. The major goal of this review article is to propose a high-performing, cost-effective hybrid photocatalyst reported to date for prospective azo dye pollutant remediation. This review article also aimed to highlight the challenges and uncertainties associated with dye degradation in the photocatalytic process.

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Section: Phytoremediationmentioning

confidence: 99%

Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes

Chowdhury,

Anantharaju,

Keshavamurthy

et al. 2023

Journal of Chemistry

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“…Several techniques based on biological and physical methods such as adsorption, advanced oxidation processes (AOCs), electrolysis, biological treatment, membrane separation, photocatalytic degradation and chemical precipitation have been explored for removing organic dyes from water. [9][10][11][12][13][14][15] Of all these methods, removing dyes by adsorption is extensively explored owing to its operational flexibility, low-cost and ecofriendly properties and design simplicity. [16][17][18] Hence, various adsorbents including activated charcoal, polymers, nanomaterials, polymer-composites and nano-composites have been utilized for the removal of organic dyes.…”

Section: Introductionmentioning

confidence: 99%

Highly enhanced cationic dye adsorption from water by nitro-functionalized Zn-MOF nano/microparticles and a biomolecular binder for improving the reusability

Arunkumar,

Pannipara,

Al-Sehemi

et al. 2024

CrystEngComm

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“…Therefore, before delivering the dye-containing effluent into the environment, it must be treated. For wastewater treatment containing organic dyes, a number of approaches have been developed and effectively used, including photocatalytic degradation [ 23 ], ion exchange [ 24 ], Fenton-like oxidation [ 25 ], adsorption [ 26 ], and membrane filtering [ 27 ]. Due to its excellent performance, cost-effectiveness, capacity to recover and repurpose adsorbents, diverse applicability, and simplicity of usage, adsorption has been recognized as a significant way to remove those pollutants [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

High-Surface-Area-Activated Carbon Derived from Mango Peels and Seeds Wastes via Microwave-Induced ZnCl2 Activation for Adsorption of Methylene Blue Dye Molecules: Statistical Optimization and Mechanism

et al. 2022

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In this study, Mango (Mangifera indica) seeds (MS) and peels (MP) seeds mixed fruit wastes were employed as a renewable precursor to synthesize high-surface-area-activated carbon (MSMPAC) by using microwave-induced ZnCl2 activation. Thus, the applicability of MSMPAC was evaluated towards the removal of cationic dye (methylene blue, MB) from an aqueous environment. The key adsorption factors, namely A: MSMPAC dose (0.02–0.1 g), B: pH (4–10), and C: time (5–15 min), were inspected using the desirability function of the Box-Behnken design (BBD). Thus, the adsorption isotherm data were found to correspond well with the Langmuir model with a maximum adsorption capacity of (232.8 mg/g). Moreover, the adsorption kinetics were consistent with both pseudo-first-order and pseudo-second-order models. The spontaneous and endothermic nature of MB adsorption on the MSMPAC surface could be inferred from the negative ∆G° values and positive value of ∆H°, respectively. Various mechanisms namely electrostatic forces, pore filling, π-π stacking, and H-bonding govern MB adsorption by the MSMPAC. This study demonstrates the utility of MS and MP as renewable precursors to produce high-surface area MSMPAC with a potential application towards the removal of cationic organic dyes such as MB.

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A highly efficient technique to simultaneously remove acidic and basic dyes using magnetic ion-exchange microbeads

Cited by 40 publications

References 41 publications

Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes

Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes

Highly enhanced cationic dye adsorption from water by nitro-functionalized Zn-MOF nano/microparticles and a biomolecular binder for improving the reusability

High-Surface-Area-Activated Carbon Derived from Mango Peels and Seeds Wastes via Microwave-Induced ZnCl2 Activation for Adsorption of Methylene Blue Dye Molecules: Statistical Optimization and Mechanism

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