Green and eco-friendly adsorption of dyes with organoclay: isothermal, kinetic and thermodynamic studies

被引：12

作者：

Tariq, Shahzaib ^{[1
]}

Saeed, Muhammad ^{[1
]}

Zahid, Usman ^{[2
]}

Munir, Maimoona ^{[3
]}

Intisar, Azeem ^{[1
]}

Riaz, Muhammad Asad ^{[2
]}

Riaz, Aqsa ^{[1
]}

Waqas, Muhammad ^{[1
]}

Abid, Hafiz Muhammad Waqar ^{[1
]}

机构：

[1] Univ Punjab, Sch Chem, Lahore 54590, Pakistan

[2] Quaid I Azam Univ, Dept Chem, Islamabad, Pakistan

[3] Int Islamic Univ, Dept Biol Sci, Islamabad, Pakistan

来源：

TOXIN REVIEWS | 2022年 / 41卷 / 04期

关键词：

Montmorillonite; surfactants; dyes; adsorption; optimization; AQUEOUS-SOLUTIONS; MODIFIED CLAY; WASTE-WATER; BASIC-DYES; REMOVAL; NANOMATERIALS; BENTONITE; MODEL; RED;

D O I：

10.1080/15569543.2021.1975751

中图分类号：

R99 [毒物学（毒理学）];

学科分类号：

100405 ;

摘要：

The present study comprises the surfactant-based modified adsorbents as inorgano-organo composites for the removal of dyes. It was depicted that 0.05 g of modified clay could be efficiently used to adsorb >90% of dye (100 mg/L). The kinetic models (pseudo-first order, pseudo-second order, intraparticle diffusion model) and isothermal models (Langmuir, Freundlich, Temkin) were also studied to examine the adsorption mechanism. Pseudo second-order kinetic model and Langmuir isothermal model fitted well with adsorption of dyes. The thermodynamic (Delta G degrees, Delta H degrees and Delta S degrees) parameters were also studied and negative value of (Delta G degrees) and positive value of (Delta S degrees) indicates the spontaneity of adsorption.

引用

页码：1105 / 1114

页数：10

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