Phenol Adsorption from Aqueous Phase onto Prepared Low-cost Carbons from Natural Sources: A Comparative Study

被引:2
作者
Gilani, A. Ghanadzadeh [1 ]
Gilani, H. Ghanadzadeh [2 ]
Azmoon, P. [2 ]
Chaibakhsh, N. [1 ]
机构
[1] Univ Guilan, Dept Chem, Fac Sci, Rasht, Iran
[2] Univ Guilan, Dept Chem Engn, Rasht, Iran
来源
PHYSICAL CHEMISTRY RESEARCH | 2019年 / 7卷 / 02期
关键词
Phenol; Natural absorbents; Activated carbon; Adsorption; Isotherm models; ACTIVATED CARBON; P-CHLOROPHENOL; REMOVAL; EQUILIBRIUM; KINETICS; WATER; ADSORBENTS; ZEOLITES; BINARY;
D O I
10.22036/pcr.2019.160071.1572
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This study demonstrates removal of phenol from aqueous solution using the carbons prepared from the natural sources, i.e., olive-pit, date-pit, and pomegranate-kernel in a batch system. For comparison purpose, the adsorption tests were also carried out on a commercial activated carbon. Influences of effective parameters such as pH, adsorbent dosage, contact time, phenol initial concentration and temperature on the removal of phenol from water were investigated. The optimum conditions for maximum adsorption were determined. In this work, the Langmuir and Freundlich models were chosen to evaluate the adsorption isotherms of phenol. The experimental isotherms showed that Freundlich isotherm fits adequately the experimental data for all adsorbents used. The adsorption data followed closely the pseudo-second-order. In addition, thermodynamic analysis was carried out for phenol adsorption. In this work, the two conventional analysis techniques, Fourier transform infrared (FTIR), and scanning electron microscopy (SEM) were used to investigate the structural and morphological properties of the adsorbents surface.
引用
收藏
页码:327 / 346
页数:20
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