Selective Adsorption of Methyl Orange and Methylene Blue by Porous Carbon Material Prepared From Potassium Citrate

被引:6
|
作者
Wang, Song [1 ]
Dou, Jiali [1 ]
Zhang, Tingting [1 ]
Li, Sanxi [1 ]
Chen, Xuecheng [1 ,2 ]
机构
[1] Shenyang Univ Technol, Sch Environm & Chem Engn, Shenyang 110870, Peoples R China
[2] West Pomeranian Univ Technol, Fac Chem Technol & Engn, PL-71065 Szczecin, Poland
来源
ACS OMEGA | 2023年 / 8卷 / 38期
关键词
EFFICIENT REMOVAL; ACTIVATED CARBON; DYE ADSORPTION; CATIONIC DYES; WASTE-WATER;
D O I
10.1021/acsomega.3c04124
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
As the discharge amount of dye wastewater increases with the development of the textile printing and dyeing industries, the treatment of the dyes in the wastewater becomes more complex. The adsorption method is a commonly used method for treating dye wastewater. The adsorbent is the key factor affecting the adsorption performance. To develop a high-performance adsorbent, a porous carbon material prepared from potassium citrate by the calcination method was applied in the adsorption of dye-containing water in this study. The morphology and pore structure of the porous carbon materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and N-2 adsorption/desorption isotherm. The porous carbon material with a specific surface area of 1436 m(2) g(-1), PC9-00, was used as an adsorbent for the adsorption of methyl orange (MO) and methylene blue (MB). The results showed that the maximum adsorption capacity of PC-900 for MO and MB reached 927 and 1853.6 mg g(-1), respectively. Studies on adsorption kinetics and adsorption isotherms showed that the pseudo-second-order kinetic model and the Langmuir isotherm model were more appropriate to describe the adsorption process of MO and MB by PC-900. In addition, the results of the mixed adsorption experiment of MO and MB dyes showed that PC-900 had selective adsorption for MB.
引用
收藏
页码:35024 / 35033
页数:10
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