Modified alginate-chitosan-TiO2 composites for adsorptive removal of Ni(II) ions from aqueous medium

Shehzad, Hamza; Ahmed, Ejaz; Sharif, Ahsan; Farooqi, Zahoor H.; Din, Muhammad Imran; Begum, Robina; Liu, Zhongfan; Zhou, Limin; Ouyang, Jinbo; Ahmad, Irfan; Nawaz, Imran

doi:10.1016/j.ijbiomac.2021.11.140

Cited by 29 publications

(5 citation statements)

References 49 publications

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“…For example, Naseem et al [ 10 ] have reported the adsorptive removal of heavy metal ions from water by a hydrogel. Shehzad et al [ 11 ] employed modified alginate-chitosan-TiO 2 composites as adsorbents for the removal of toxic metal ions from water. Naseem et al [ 12 ] used husk biomass as the adsorbent for the removal of water contaminants.…”

Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide-Zinc Sulfide Nanocomposite Decorated with Silver Nanoparticles for Wastewater Treatment by Adsorption, Photocatalysis and Antimicrobial Action

et al. 2023

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Reduced graphene oxide nanosheets decorated with ZnS and ZnS-Ag nanoparticles are successfully prepared via a facile one-step chemical approach consisting of reducing the metal precursors on a rGO surface. Prepared rGO-ZnS nanocomposite is employed as an adsorbent material against two model dyes: malachite green (MG) and ethyl violet (EV). The adsorptive behavior of the nanocomposite was tuned by monitoring some parameters, such as the time of contact between the dye and the adsorbent, and the adsorbent dose. Experimental data were also simulated with kinetic models to evaluate the adsorption behavior, and the results confirmed that the adsorption of both dyes followed a pseudo 2nd order kinetic mode. Moreover, the adsorbent was also regenerated in a suitable media for both dyes (HCl for MG and ethanol for EV), without any significant loss in removal efficiency. Ag doped rGO-ZnS nanocomposite was also utilized as a photocatalyst for the degradation of the selected organic contaminant, resorcinol. The complete degradation of the phenolic compound was achieved after 60 min with 200 mg of rGO-ZnS-Ag nanocomposite under natural sunlight irradiation. The photocatalytic activity was studied considering some parameters, such as the initial phenol concentration, the photocatalyst loading, and the pH of the solution. The degradation kinetics of resorcinol was carefully studied and found to follow a linear Langmuir–Hinshelwood model. An additional advantage of rGO-ZnS and rGO-ZnS-Ag nanocomposites was antibacterial activity against Gram-negative bacterium, E. coli, and the results confirmed the significant performance of the nanocomposites in destroying harmful pathogens.

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Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide-Zinc Sulfide Nanocomposite Decorated with Silver Nanoparticles for Wastewater Treatment by Adsorption, Photocatalysis and Antimicrobial Action

et al. 2023

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“…The electrodes in PCs are made of highly conductive materials, such as Activated Carbon (AC), graphene, CNT, CP, and MO-based composites, which provide a large surface area for electrochemical reactions. 34–37 The quick charge transfer reactions due to the adsorbed species on the electrode surface depend upon UPD, intermediates adsorbed on ions present in the electrolyte, and electrode composition. 28 The electrolyte is a liquid or gel-like substance containing ions that facilitate the charge transfer between the electrodes.…”

Section: Scs As Esdsmentioning

confidence: 99%

“…In HCs, the hybrid system delivers a combination of both blending a power source that is an electrode that functions like a capacitor and a source of energy that is an electrode that functions like a battery in the same cell. 35,36 HCs, also known as asymmetric capacitors, are a type of ESD that combines the features of both capacitors and rechargeable batteries. They are designed to provide a balance between high power density (like capacitors) and high EDs like LIBs, making them suitable for applications that require both rapid charge/discharge capabilities and long-term energy storage.…”

Section: Scs As Esdsmentioning

confidence: 99%

Developments in conducting polymer-, metal oxide-, and carbon nanotube-based composite electrode materials for supercapacitors: a review

Tundwal,

Kumar,

Binoj

et al. 2024

RSC Adv.

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“…Among the main techniques used to remove heavy metal ions from wastewater, we can mention ion exchange [8], membrane filtration techniques [9], chemical precipitation [10], electrochemical treatment technology, biological treatment, and adsorption [11,12]. Nevertheless, all these techniques have advantages and disadvantages; the most notable disadvantages are high production costs, generation of potentially hazardous waste, and high energy costs [11]. Adsorption using adsorbent materials can overtake some of those drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Chitosan-Based Beads Incorporating Inorganic–Organic Composites for Copper Ion Retention in Aqueous Solutions

Miron,

Iordache,

Valente

et al. 2024

IJMS

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In recent years, there has been a challenging interest in developing low-cost biopolymeric materials for wastewater treatment. In the present work, new adsorbents, based on different types of chitosan (commercial, commercial chitin-derived chitosan and chitosan synthesized from shrimp shell waste) and inorganic–organic composites have been evaluated for copper ions removal. The efficacy of the synthesis of chitosan-based composite beads has been determined by studying various characteristics using several techniques, including FTIR spectroscopy, X-ray diffraction, porosimetry (N2 adsorption), and scanning electron microscopy (SEM). Adsorption kinetics was performed using different adsorption models to determine the adsorption behavior of the materials in the aqueous media. For all composite beads, regardless of the type of chitosan used, good capacity to remove copper ions from simulated waters was observed (up to 17 mg/g), which proves that the new materials hold potential for heavy metal retention. However, the adsorption efficiency was influenced by the type of chitosan used. Thus, for the series where commercial chitosan (CC) was used, the removal efficiency was approximately 29%; for the series with chitosan obtained from commercial chitin (SC), the removal efficiency was approximately 34%; for the series with chitosan enriched with CaCO3 (SH), the removal efficiency was approximately 52%.

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Modified alginate-chitosan-TiO2 composites for adsorptive removal of Ni(II) ions from aqueous medium

Cited by 29 publications

References 49 publications

Reduced Graphene Oxide-Zinc Sulfide Nanocomposite Decorated with Silver Nanoparticles for Wastewater Treatment by Adsorption, Photocatalysis and Antimicrobial Action

Reduced Graphene Oxide-Zinc Sulfide Nanocomposite Decorated with Silver Nanoparticles for Wastewater Treatment by Adsorption, Photocatalysis and Antimicrobial Action

Developments in conducting polymer-, metal oxide-, and carbon nanotube-based composite electrode materials for supercapacitors: a review

Chitosan-Based Beads Incorporating Inorganic–Organic Composites for Copper Ion Retention in Aqueous Solutions

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