Adsorption of Procion Blue MX-R dye from aqueous solutions by lignin chemically modified with aluminium and manganese

被引：111

作者：

Adebayo, Matthew A. ^{[1
,2
]}

Prola, Lizie D. T. ^{[1
]}

Lima, Eder C. ^{[1
]}

Puchana-Rosero, M. J. ^{[1
]}

Cataluna, Renato ^{[1
]}

Saucier, Caroline ^{[1
]}

Umpierres, Cibele S. ^{[1
]}

Vaghetti, Julio C. P. ^{[1
]}

da Silva, Leandro G. ^{[3
]}

Ruggiero, Reinaldo ^{[3
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Chem, BR-91501970 Porto Alegre, RS, Brazil

[2] Ajayi Crowther Univ, Dept Chem Sci, Oyo, Oyo State, Nigeria

[3] Univ Fed Uberlandia, Inst Chem, BR-38400902 Uberlandia, MG, Brazil

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2014年 / 268卷

关键词：

Adsorption; Lignin complex; Procion Blue MX-R dye; Nonlinear isotherm fitting; General order kinetic model; MULTI-WALLED CARBON; COPPER DETERMINATION; ACTIVATED CARBON; FRUIT SHELL; TEXTILE DYE; AZO-DYE; REMOVAL; BIOSORPTION; EQUILIBRIUM; BIOSORBENT;

D O I：

10.1016/j.jhazmat.2014.01.005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A macromolecule, CML, was obtained by purifying and carboxy-methylating the lignin generated from acid hydrolysis of sugarcane bagasse during bioethanol production from biomass. The CMLs complexed with Al3+ (CML-Al) and Mn2+ (CML-Mn) were utilised for the removal of a textile dye, Procion Blue MX-R (PB), from aqueous solutions. CML-Al and CML-Mn were characterised using Fourier transform infrared spectroscopy (FTIR), scanning differential calorimetry (SDC), scanning electron microscopy (SEM) and pH(PZC). The established optimum pH and contact time were 2.0 and 5 h, respectively. The kinetic and equilibrium data fit into the general order kinetic model and Liu isotherm model, respectively. The CML-Al and CML-Mn have respective values of maximum adsorption capacities of 73.52 and 55.16 mg g(-1) at 298 K. Four cycles of adsorption/desorption experiments were performed attaining regenerations of up to 98.33% (CML-Al) and 98.08% (CML-Mn) from dye-loaded adsorbents, using 50% acetone +50% of 0.05 mol L-1 NaOH. The CML-Al removed ca. 93.97% while CML-Mn removed ca. 75.91% of simulated dye house effluents. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：43 / 50

页数：8

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