Simultaneous removal of benzene polycarboxylic acids from water by polypyrrole composite filled with a cellulosic agricultural waste

被引：37

作者：

Laabd, Mohamed ^{[1
]}

El Jaouhari, Abdelhadi ^{[1
]}

Haki, Mohamed Ait ^{[1
]}

Eljazouli, Habiba ^{[1
]}

Bazzaoui, Mohammed ^{[1
]}

Kabli, Hassan ^{[1
]}

Albourine, Abdallah ^{[1
]}

机构：

[1] Ibn Zohr Univ, Dept Chem, Lab Mat & Environm, Fac Sci, BP 8106, Agadir, Morocco

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2016年 / 4卷 / 02期

关键词：

Adsorption; Multi-component systems; Nut-shells of Argan; Polycarboxy-benzoic acids; Polypyrrole;

D O I：

10.1016/j.jece.2016.03.015

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The polypyrrole composite filled with a cellulosic agricultural waste (Nut-shells of Argan) was prepared by chemical oxidative polymerization. PPy/Nut-shells of Argan (PPy/NA) composite was used as an eco-friendly adsorbent for the removal of three polycarboxy-benzoic acids (hemimellitic, trimellitic, and pyromellitic acids) from single, binary, and ternary systems. The effects of parameters influencing the adsorption process including initial pH, adsorbent dose, contact time, initial concentration of polycarboxy-benzoic acids, and temperature were investigated. The kinetics studies indicated that the pseudo-second-order kinetic model well better described the adsorption kinetics for single systems. The adsorption equilibrium data from single, binary, and ternary systems were successfully described by the Langmuir isotherm model. The comparison of equilibrium adsorbed amounts in single and multicomponent systems shows an antagonism effect. The obtained results indicate that the affinity of studied polycarboxy-benzoic acids on the surface of PPy/NA composite followed the order pyromellitic acid > trimellitic acid > hemimellitic acid. The thermodynamic parameters show that the nature of adsorption is spontaneous and endothermic. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1869 / 1879

页数：11

共 66 条

[1] Competitive adsorption of reactive dyes from solution: Equilibrium isotherm studies in single and multisolute systems [J].