Central composite design and genetic algorithm applied for the optimization of ultrasonic-assisted removal of malachite green by ZnO Nanorod-loaded activated carbon

被引：134
作者：
Ghaedi, M. [1 ]
Azad, F. Nasiri [1 ]
Dashtian, K. [1 ]
Hajati, S. [2 ]
Goudarzi, A. [3 ]
Soylak, M. [4 ]
机构：
[1] Univ Yasuj, Dept Chem, Yasuj 7591874831, Iran
[2] Univ Yasuj, Dept Phys, Yasuj 7591874831, Iran
[3] Golestan Univ, Dept Polymer Engn, Gorgan 4918888369, Iran
[4] Erciyes Univ, Dept Chem, TR-38039 Kayseri, Turkey
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2016年 / 167卷
基金：
美国国家科学基金会;
关键词：
Malachite green; Genetic algorithm; ZnO-Nanorods; Central composite design; RESPONSE-SURFACE METHODOLOGY; DIRECT YELLOW 12; AQUEOUS-SOLUTION; HYDROTHERMAL SYNTHESIS; DESIRABILITY FUNCTION; METHYLENE-BLUE; ORGANIC-DYES; ADSORPTION; ADSORBENT; ISOTHERM;
D O I：
10.1016/j.saa.2016.05.025
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Maximum malachite green (MG) adsorption onto ZnO Nanorod-loaded activated carbon (ZnO-NR-AC) was achieved following the optimization of conditions, while the mass transfer was accelerated by ultrasonic. The central composite design (CCD) and genetic algorithm (GA) were used to estimate the effect of individual variables and their mutual interactions on the MG adsorption as response and to optimize the adsorption process. The ZnO-NR-AC surface morphology and its properties were identified via FESEM, XRD and FTIR. The adsorption equilibrium isotherm and kinetic models investigation revealed the well fit of the experimental data to Langmuir isotherm and pseudo-second-order kinetic model, respectively. It was shown that a small amount of ZnO-NR-AC (with adsorption capacity of 20 mg g(-1)) is sufficient for the rapid removal of high amount of MG dye in short time (3.99 min). (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：157 / 164
页数：8
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