Preparation of citric acid/porous starch composite adsorbents and their adsorption studies

Zheng, Yangyang; He, Yan‐Ping; Liu, Chang; Song, Leqian; Zhang, Huacheng

doi:10.1039/d3ma00228d

Mater. Adv.

2023

DOI: 10.1039/d3ma00228d

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Preparation of citric acid/porous starch composite adsorbents and their adsorption studies

Yangyang Zheng¹,

Yan‐Ping He²,

Chang Liu³

et al.

Abstract: Methylene blue (MB) is a typical cationic dye, causing significant color changes in water bodies even in small dissolved amounts, as well as affecting the survival of neighboring plants and...

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Cited by 4 publications

References 34 publications

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Studies on the adsorption of aqueous cadmium and the treatment of mine tailings using anionic Type-C starch

Akinterinwa,

Oladele,

Hammed

et al. 2024

Discov. Chem.

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Adsorption-based water treatment technology is a sustainable strategy for health and environmental wellness, as well as mineral recovery and resource conservation. Extended studies on the Cd2+ adsorption characteristics of the cross-linked/phosphorylated carboxymethyl starch (SCCS) derivatives produced by treating a Type-C starch with anionic precursors, including sodium trimetaphosphate (STMP) and sodium monochloroacetate (SMCA) were carried out. The optimum product was subjected to surface area studies using the Brunauer–Emmett–Teller (BET) method, and then Fourier transformed infrared (FTIR), scanning electron microscopy (SEM), and energy dispersive X-ray (EDX) before and after adsorption of Cd2+. The BET results showed that the derivative is mesoporous (pore size: 3.5–6.4 m3/g), while the FTIR results indicated that the adsorption of Cd2+ can be attributed to interactions with the hydroxyl, carbonyl, and phosphoryl functional groups on the SCCS platform. Adsorption equilibrium, kinetics, isotherms, thermodynamics, and recovery/regeneration were extensively studied using various models and experimental conditions. The results showed that Cd2+ was efficiently adsorbed (≈ 99%) at equilibrium, and the data fitness for multiple models indicated that the adsorption process is based on a combination of physisorption and chemisorption processes that are thermodynamically feasible and reversible for economic utilization of the adsorbent. The adsorbent was used in the treatment of mine tailing, and the result showed that the removal of minerals from the tailings was very efficient (≈ 100%).

show abstract

Studies on the adsorption of aqueous cadmium and the treatment of mine tailings using anionic Type-C starch

Akinterinwa,

Oladele,

Hammed

et al. 2024

Discov. Chem.

View full text Add to dashboard Cite

show abstract

Double-function ZnO/starch biodegradable hydrogel composite for methylene blue adsorption and photocatalytic degradation

Jumnong,

Kongseng,

Maijan

et al. 2023

International Journal of Biological Macromolecules

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Schiff base functionalized dialdehyde starch for enhanced removal of Cu (II): Preparation, performances, DFT calculations

Liang,

Han,

Liu

et al. 2024

International Journal of Biological Macromolecules

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Preparation of citric acid/porous starch composite adsorbents and their adsorption studies

Abstract: Methylene blue (MB) is a typical cationic dye, causing significant color changes in water bodies even in small dissolved amounts, as well as affecting the survival of neighboring plants and...

Cited by 4 publications

References 34 publications

Studies on the adsorption of aqueous cadmium and the treatment of mine tailings using anionic Type-C starch

Studies on the adsorption of aqueous cadmium and the treatment of mine tailings using anionic Type-C starch

Double-function ZnO/starch biodegradable hydrogel composite for methylene blue adsorption and photocatalytic degradation

Schiff base functionalized dialdehyde starch for enhanced removal of Cu (II): Preparation, performances, DFT calculations

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