Chitosan-based nanocomposites for removal of Cr(VI) and synthetic food colorants from wastewater

Singh, Shivangi; Arputharaj, Emmanuvel; Dahms‬, Hans-Uwe; Patel, Anil Kumar; Huang, Yeou‐Lih

doi:10.1016/j.biortech.2022.127018

Cited by 32 publications

(10 citation statements)

References 45 publications

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“…These factors encompass various aspects of the CS adsorption process, including: pH, initial metal concentration, temperature, contact time, CS properties, competitive ions, physical characteristics, and pretreatment techniques. (Singh et al, 2022). The pH of the solution plays a crucial role in CS adsorption efficiency.…”

Section: Factors Affecting Adsorptionmentioning

confidence: 99%

“…However, CS-based adsorbents may have limitations, such as low mechanical strength and potential pH dependence (Van Tran et al, 2018). They may also exhibit slower kinetics compared to other adsorbents (Singh et al, 2022). Nevertheless, these limitations can be addressed through various strategies, including cross-linking, blending with other materials, or employing advanced CS-based composites (Ayub & Raza, 2021).…”

Section: Comparison With Other Adsorbentsmentioning

confidence: 99%

“…Techniques such as cross-linking, gel formation, and microsphere development have improved the stability, mechanical strength, and reusability of CS (Ayub et al, 2020). Additionally, incorporating metals like iron or molybdenum into CS microspheres has proven to increase the adsorption capacity of CS-based materials (Singh et al, 2022). Notable examples include the use of iron-chitosan granules (ICSB) and iron-chitosan flakes (ICSF) for As removal from water and soil (Singh et al, 2022).…”

Section: Cs and Cs-based Composites For CD And As Removalmentioning

confidence: 99%

“…Additionally, incorporating metals like iron or molybdenum into CS microspheres has proven to increase the adsorption capacity of CS-based materials (Singh et al, 2022). Notable examples include the use of iron-chitosan granules (ICSB) and iron-chitosan flakes (ICSF) for As removal from water and soil (Singh et al, 2022). Graphene oxide (GO)-modified CS has demonstrated exceptional efficiency in the adsorptive removal of As(III) (Shan et al, 2020).…”

Section: Cs and Cs-based Composites For CD And As Removalmentioning

confidence: 99%

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Chitosan-Based Biostimulation: A Novel Approach for Simultaneous Remediation of Co-Existing Cadmium and Arsenic Contamination in Soil

Ullah,

Hayat,

Qiao

2023

Air, Soil and Water Research

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Cadmium (Cd) and arsenic (As) are both potentially toxic heavy metals (HMs) found ubiquitously in the environment. These HMs are prevalent in soil due to natural occurrences or anthropogenic activities. Co-contamination of Cd and As in soil is a major concern for plant and human health as well as ecosystem sustainability due to their hazardous properties. Therefore, a global imperative is developing improved technologies for managing and remediating soil co-contaminated with Cd and As. One effective solution for remediating Cd/As co-contaminated soil involves the utilization of natural biopolymers and biostimulants, such as chitosan (CS). CS offers distinct advantages, including its ready availability, biodegradability, biocompatibility, environmental friendliness, and cost-effectiveness when compared to alternative adsorbents. The adsorption mechanism of CS and CS-based adsorbents for Cd and As primarily relies on electrostatic attraction, complexation, and ion exchange. This review article provides a comprehensive overview of Cd and As co-contamination in soil, elucidating their sources, distribution patterns, exposure pathways, and the prospective remediation approaches employing CS biostimulants and CS-based adsorbents. Furthermore, it summarizes recent studies investigating the adsorption of Cd/As by CS, the factors influencing the adsorption efficiency and the challenges associated with the utilization of CS and CS-based adsorbents. In conclusion, the review underscores the need for further research to concurrently remediate Cd and As co-contaminated soil, enhance the adsorption efficiency of CS and CS-based composites, and broaden their practical applicability for remediating co-contaminated soils.

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Section: Factors Affecting Adsorptionmentioning

confidence: 99%

Section: Comparison With Other Adsorbentsmentioning

confidence: 99%

Section: Cs and Cs-based Composites For CD And As Removalmentioning

confidence: 99%

Section: Cs and Cs-based Composites For CD And As Removalmentioning

confidence: 99%

See 2 more Smart Citations

Chitosan-Based Biostimulation: A Novel Approach for Simultaneous Remediation of Co-Existing Cadmium and Arsenic Contamination in Soil

Ullah,

Hayat,

Qiao

2023

Air, Soil and Water Research

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“…Generally, there are chemical, physical, and biological methods to treat azo dyes, including electrocatalysis, 5,6 photocatalysis, 7,8 adsorption, 9,10 flocculation, 11,12 and microbial degradation. 13,14 Among these, Fenton method is one of the representatives of advanced oxidation technology.…”

Section: Introductionmentioning

confidence: 99%

Degradation of methyl orange by an ultrasonic Fenton-like process with Fe-based amorphous alloy powders

Tan

Wang

et al. 2023

New J. Chem.

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Investigation of a novel polyaniline-magnesium phosphate nanocomposites to remove an anionic dye and Cr(VI) from aqueous solution

Hajjaoui,

Soufi,

Khnifira

et al. 2024

Int. J. Environ. Sci. Technol.

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Chitosan-based nanocomposites for removal of Cr(VI) and synthetic food colorants from wastewater

Cited by 32 publications

References 45 publications

Chitosan-Based Biostimulation: A Novel Approach for Simultaneous Remediation of Co-Existing Cadmium and Arsenic Contamination in Soil

Chitosan-Based Biostimulation: A Novel Approach for Simultaneous Remediation of Co-Existing Cadmium and Arsenic Contamination in Soil

Degradation of methyl orange by an ultrasonic Fenton-like process with Fe-based amorphous alloy powders

Investigation of a novel polyaniline-magnesium phosphate nanocomposites to remove an anionic dye and Cr(VI) from aqueous solution

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