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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.8
- 수록면
- 36 - 50 (15page)
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초록· 키워드
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Heavy-metal ions are common pollutants in wastewater and are thus attracting considerable attention. Herein, an eco-friendly biodegradable adsorbent, iminodisuccinic acid (IDS) modified attapulgite (ATP) is prepared by graft-polymerization to reduce Cu(II) in water, referred as IDS-ATP. The equilibrium adsorption capacity of IDS-ATP for Cu(II) is increased by 329.5% and 272% compared with raw ATP and non-degradable chelator ethylenediaminetetraacetic acid-modified ATP (EDTA-ATP), respectively. Moreover, the adsorption capacities for Cu(II) in combined system increased by 186% compared with in single system. The structure and surface properties of IDS-ATP are characterized, demonstrating that the IDS moieties are anchored on the surface of ATP without structural damage. In the aqueous Cu(II) (64 mg /L), the best adsorption pH is 5.0, the best dosage is 800 mg/L, and the adsorption equilibrium time is 4 h. The adsorption of IDS-ATP is chemical adsorption and regenerated adsorbent still exhibits high adsorption capacity. The adsorption mechanism includes the coordination of amino groups with Cu(II), the chelation of -COOH on heavy metals (HMs), and the ion exchange. Taking Cu(II) as an example to study the process of IDS-ATP in water, it is beneficial to apply this degradable material to reduce the other HMs.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussions
4. Conclusions
Reference
참고문헌 (54)
참고문헌 신청
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Kul S. Removal of Cu(II) from aqueous solutions using modified sewage sludge ash. Int. J. Environ. Sci. Technol. 2021;18:3795-3806. https://doi.org/10.1007/s13762-021-03419-7.
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Ali H, Khan E, Ilahi I. Environmental chemistry and ecotoxicology of hazardous heavy metals: environmental persistence, toxicity, and bioaccumulation. J. Chem. 2019;2019:67300305. https://doi.org/10.1155/2019/6730305.
Zhou P-F, Adeel M, Shakoor N, et al. Application of nanoparticles alleviates heavy metals stress and promotes plant growth: An overview. Nanomaterials 2021;11(1),26. https://doi.org/10.3390/nano11010026.
Kul S. Removal of Cu(II) from aqueous solutions using modified sewage sludge ash. Int. J. Environ. Sci. Technol. 2021;18:3795-3806. https://doi.org/10.1007/s13762-021-03419-7.
Gupta N, Yadav KK, Kumar V, Krishnan S, Alam J. Evaluating heavy metals contamination in soil and vegetables in the region of North India: Levels, transfer and potential human health risk analysis. Environ. Toxicol. Phar. 2021;82:103563. https://doi.org/1
Ali H, Khan E, Ilahi I. Environmental chemistry and ecotoxicology of hazardous heavy metals: environmental persistence, toxicity, and bioaccumulation. J. Chem. 2019;2019:67300305. https://doi.org/10.1155/2019/6730305.
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