The Importance of Calcium on the Adsorption of Direct Orange S by Powdered Activated Carbon

被引：3
|
作者：
Lv, Shuquan [1 ,2 ]
Liu, Lujian [1 ,2 ]
Ruan, Xia [1 ,2 ]
Dong, Jun [1 ,2 ]
Zhang, Lanxin [2 ]
Yan, Ge [1 ,2 ]
机构：
[1] Wuhan Technol & Business Univ, Sch Environm & Biol Engn, Wuhan 430065, Peoples R China
[2] Hubei Prov Wastewater Resources Engn & Technol Ctr, Wuhan 430065, Hubei, Peoples R China
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2023年 / 59卷 / 05期
关键词：
powdered activated carbon; Direct Orange S; calcium; correlation analysis; DYE; REMOVAL; ADSORBENT;
D O I：
10.1134/S2070205123700879
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Fourteen kinds of powdered activated carbon (PAC) were screened to distinguish their adsorption performance of Direct Orange S (DOS). PAC1, PAC2, PAC3 and PAC14 showed the better removal efficiencies, while PAC6 presented meager adsorption performance. Subsequently, above five PACs were revealed in terms of their relative element contents, functional groups in the FTIR spectra, pore size distribution, and BET surface area, as well as in the research of isotherms and kinetics. Base on above results, the amount of calcium had a high correlation with adsorption of DOS onto PAC according to correlation analysis between physical characteristics and q(e), calcium-modified version of PAC6 (PAC6M) showing better adsorption performance also verified calcium in the role of PAC adsorption for DOS. Besides, acidic solution and the presence of NaCl and CaCl2 in DOS solution showed enhancement effect in PAC adsorption process.
引用
收藏
页码：893 / 898
页数：6
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