Removal of heavy metal ions from water using adsorbents from agro waste materials

被引：21

作者：

Arthi, D. ^{[1
]}

Jose, J. Michael Ahitha ^{[1
]}

Gladis, E. H. Edinsha ^{[2
]}

Shinu, P. M. Shajin ^{[3
]}

Joseph, J. ^{[1
]}

机构：

[1] Noorul Islam Ctr Higher Educ, Dept Chem, Kumarakovil 629180, Tamil Nadu, India

[2] Noorul Islam Ctr Higher Educ, Dept Chem, Kumarakovil 629180, Tamil Nadu, India

[3] Malankara Catholic Coll, Dept Phys, Kaliyakkavilai 629153, Tamil Nadu, India

来源：

MATERIALS TODAY-PROCEEDINGS | 2021年 / 45卷

关键词：

Metal; Adsorbent; Desorption; Water; Adsorption; AQUEOUS-SOLUTIONS; ACTIVATED CARBON; ADSORPTION; SORPTION; NICKEL; DYE; KINETICS; GREEN;

D O I：

10.1016/j.matpr.2020.08.738

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

When discharged without adequate treatment into water resources, hazardous metal ions found in industrial wastewater influence the risk to human and environmental health. Low-cost adsorbents with a high metal-binding potential are widely used for heavy metal removal. Intrinsic physico-chemical structural features of adsorbents significantly affect their potential for adsorption. The influence of physico-chemical properties on the adsorption capacity is comparable for all three metal cations namely Cu2+, Co2+, and Zn2+. Acidic surface functionalities were bound with Cu2+ and Co2+. Carboxylic groups were involved in adsorption of Cu2+ and Zn2+ whereas lactonic groups were interact with Zn2+ and convert into complexation. The pH effect demonstrated a dramatic increase in adsorption efficiency by rising the solution pH from 3 to 6. It was proven that adsorbent could be used as an effective adsorbent for removal of Ni(II) ions from water solutions as an alternative to commercial activated carbons. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Advances in Materials Research-2019.

引用

页码：1794 / 1798

页数：5

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