Adsorption of rare earth metals from water using a kenaf cellulose-based poly(hydroxamic acid) ligand

被引：60

作者：

Rahman, Md Lutfor ^{[1
]}

Biswas, Tapan Kumar ^{[2
]}

Sarkar, Shaheen M. ^{[2
]}

Yusoff, Mashitah M. ^{[2
]}

Sarjadi, Mohd Sani ^{[1
]}

Arshad, Sazmal E. ^{[1
]}

Musta, Baba ^{[1
]}

机构：

[1] Univ Malaysia Sabah, Fac Sci & Nat Resources, Kota Kinabalu 88400, Sabah, Malaysia

[2] Univ Malaysia Pahang, Fac Ind Sci & Technol, Gambang 26300, Kuantan, Malaysia

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2017年 / 243卷

关键词：

Adsorption; Poly(hydroxamic acid); Rare earth; Separation; Kenaf cellulose; PLASMA-MASS SPECTROMETRY; DIGLYCOL AMIC ACID; ONLINE PRECONCENTRATION; CHELATING RESIN; CHROMATOGRAPHIC-SEPARATION; SELECTIVE RECOVERY; LIQUID-EXTRACTION; TRACE-ELEMENTS; SEAWATER; IONS;

D O I：

10.1016/j.molliq.2017.08.096

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A kenaf cellulose-based poly(hydroxamic acid) ligand was synthesized from poly(methylacrylate) grafted cellulose and applied towards the adsorption of rare earth metals from aqueous media. The starting materials and final product were examined by FT-IR, FE-SEM, and ICP-MS. Remarkable maximum adsorption results were obtained for the earth metals La3+, CO+, Pr3+, Gd3+, Nd3+, Eu3+, and Sm3+, with values of 260, 245, 235, 220, 210, 195, and 192 mg g(-1), respectively. The adsorption capacities of the ligand for adsorption of rare earth metals were well fitted with the pseudo-second-order rate equation. Further, the adsorption properties of the rare earth ions were nicely matched with the Langmuir isotherm model, (R-2 > 0.99), thus suggesting that the adsorbent surface of the ligand is monolayer and homogenous in nature. The reusability of the created ligand was evaluated by carrying out sequential sorption/desorption experiments, indicating that the developed adsorbent can be reused for at least 10 cycles without incurring any significant losses to its primary removal capabilities. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：616 / 623

页数：8