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Utilization of Modified Attapulgite for the Removal of Sr(II), Co(II), and Ni(II) Ions from Multicomponent System, Part I: Kinetic Studies.
Environ Sci Pollut Res Int. 2020 Mar; 27(7):6824-6836.ES

Abstract

Radionuclide sorption by natural and modified clays is extensively accepted to be an important process from the radioactive waste point of view. This work focused on modification of natural attapulgite with a layered double hydroxide to produce a novel chemisorbent for Sr2+, Ni2+, and Co2+ removal from multicomponent solution. The structural and surface characteristics of both attapulgite (ATP) and modified attapulgite (LDH-ATP) were investigated using XRD, FTIR, SEM, and thermal analysis. Comparison of sorption features of Sr2+, Ni2+, and Co2+ onto ATP and LDH-ATP was achieved; the results indicated that LDH-ATP was the most efficient sorbent for Sr2+, Ni2+, and Co2+. Kinetic studies established that the sorption is fast and reaching >90% within 30 min. The sorption of Sr2+, Ni2+, and Co2+ are well defined by non-linear pseudo-second-order model and controlled by an intra-particle diffusion mechanism. The diffusivity was determined using homogeneous surface diffusion (HSDM) model and found in the order 10-13 m2/min; this confirmed that the sorption of the three ions is chemisorption process. LDH-ATP can be employed as a candidate chemisorbent for the removal of some metal ions from waste solution.

Authors+Show Affiliations

Hot Laboratories Center, Atomic Energy Authority, Cairo, 13759, Egypt.Hot Laboratories Center, Atomic Energy Authority, Cairo, 13759, Egypt.Hot Laboratories Center, Atomic Energy Authority, Cairo, 13759, Egypt. sicosad@hotmail.com.Hot Laboratories Center, Atomic Energy Authority, Cairo, 13759, Egypt.Department of Chemical Engineering, Faculty of Engineering, Minia University, Minya, Egypt.Department of Chemical Engineering, Faculty of Engineering, Minia University, Minya, Egypt.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31875294

Citation

Mohammed, Amira A., et al. "Utilization of Modified Attapulgite for the Removal of Sr(II), Co(II), and Ni(II) Ions From Multicomponent System, Part I: Kinetic Studies." Environmental Science and Pollution Research International, vol. 27, no. 7, 2020, pp. 6824-6836.
Mohammed AA, Abdel Moamen OA, Metwally SS, et al. Utilization of Modified Attapulgite for the Removal of Sr(II), Co(II), and Ni(II) Ions from Multicomponent System, Part I: Kinetic Studies. Environ Sci Pollut Res Int. 2020;27(7):6824-6836.
Mohammed, A. A., Abdel Moamen, O. A., Metwally, S. S., El-Kamash, A. M., Ashour, I., & Al-Geundi, M. S. (2020). Utilization of Modified Attapulgite for the Removal of Sr(II), Co(II), and Ni(II) Ions from Multicomponent System, Part I: Kinetic Studies. Environmental Science and Pollution Research International, 27(7), 6824-6836. https://doi.org/10.1007/s11356-019-07292-3
Mohammed AA, et al. Utilization of Modified Attapulgite for the Removal of Sr(II), Co(II), and Ni(II) Ions From Multicomponent System, Part I: Kinetic Studies. Environ Sci Pollut Res Int. 2020;27(7):6824-6836. PubMed PMID: 31875294.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Utilization of Modified Attapulgite for the Removal of Sr(II), Co(II), and Ni(II) Ions from Multicomponent System, Part I: Kinetic Studies. AU - Mohammed,Amira A, AU - Abdel Moamen,Ola A, AU - Metwally,Sayed S, AU - El-Kamash,Ahmed M, AU - Ashour,Ibrahim, AU - Al-Geundi,Mohammed S, Y1 - 2019/12/24/ PY - 2019/07/20/received PY - 2019/12/04/accepted PY - 2019/12/26/pubmed PY - 2020/4/9/medline PY - 2019/12/26/entrez KW - Attapulgite KW - Chemisorption KW - Kinetics KW - Layered double hydroxide KW - Multicomponent SP - 6824 EP - 6836 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 27 IS - 7 N2 - Radionuclide sorption by natural and modified clays is extensively accepted to be an important process from the radioactive waste point of view. This work focused on modification of natural attapulgite with a layered double hydroxide to produce a novel chemisorbent for Sr2+, Ni2+, and Co2+ removal from multicomponent solution. The structural and surface characteristics of both attapulgite (ATP) and modified attapulgite (LDH-ATP) were investigated using XRD, FTIR, SEM, and thermal analysis. Comparison of sorption features of Sr2+, Ni2+, and Co2+ onto ATP and LDH-ATP was achieved; the results indicated that LDH-ATP was the most efficient sorbent for Sr2+, Ni2+, and Co2+. Kinetic studies established that the sorption is fast and reaching >90% within 30 min. The sorption of Sr2+, Ni2+, and Co2+ are well defined by non-linear pseudo-second-order model and controlled by an intra-particle diffusion mechanism. The diffusivity was determined using homogeneous surface diffusion (HSDM) model and found in the order 10-13 m2/min; this confirmed that the sorption of the three ions is chemisorption process. LDH-ATP can be employed as a candidate chemisorbent for the removal of some metal ions from waste solution. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/31875294/Utilization_of_Modified_Attapulgite_for_the_Removal_of_Sr_II__Co_II__and_Ni_II__Ions_from_Multicomponent_System_Part_I:_Kinetic_Studies_ L2 - https://dx.doi.org/10.1007/s11356-019-07292-3 DB - PRIME DP - Unbound Medicine ER -