Highly Stable and Efficient Lignin-PEDOT/PSS Composites for Removal of Toxic Metals

被引：23

作者：

Checkol, Fekadu ^{[1
]}

Elfwing, Anders ^{[2
]}

Greczynski, Grzegorz ^{[3
]}

Mehretie, Solomon ^{[1
]}

Inganas, Olle ^{[2
]}

Admassie, Shimelis ^{[1
,2
]}

机构：

[1] Addis Ababa Univ, Dept Chem, POB 1176, Addis Ababa, Ethiopia

[2] Linkoping Univ, Biomol & Organ Elect, Dept Phys Chem & Biol IFM, S-58183 Linkoping, Sweden

[3] Linkoping Univ, Dept Phys Chem & Biol IFM, Thin Film Phys, S-58183 Linkoping, Sweden

来源：

ADVANCED SUSTAINABLE SYSTEMS | 2018年 / 2卷 / 01期

关键词：

adsorption capacity; lead ions; lignin; poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate; toxic metals; CHEMICALLY-MODIFIED CARBON; CONTROLLED ANION-EXCHANGE; HEAVY-METALS; ELECTROCHEMICAL REMOVAL; AQUEOUS-SOLUTIONS; WASTE-WATER; LEAD IONS; ELECTRODE-MATERIALS; FACILE PREPARATION; ACTIVATED CARBON;

D O I：

10.1002/adsu.201700114

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A hybrid biopolymer/electronic polymer electrode is demonstrated here to extract metal ions, in this case lead, from water. The hybrid material consists of poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate (PEDOT/PSS) and the biopolymer lignin (LG) and is prepared by a simple one-step galvanostatic polymerization from aqueous solution. The hybrid material is characterized by cyclic voltammetry, electrochemical quartz microbalance, X-ray photoelectron spectroscopy, and scanning electron microscopy techniques. The electrochemical and spectroscopic results confirm that lead ions can be adsorbed on the composites films from a neutral solution of lead ions by applying a negative potential and subsequently desorbed from the hybrid films by applying positive potential. The adsorption capacity for lead ions on PEDOT/PSS is 245.5 mg g(-1) and is almost doubled to 452.8 mg g(-1) by incorporating LG into PEDOT/PSS.

引用

页数：7

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