Effect of salt modification and acid activation on ethylene adsorption properties of sepiolite

被引：10
|
作者：
Sakizci, Meryem [1 ]
机构：
[1] Anadolu Univ, Fac Sci, Dept Phys, TR-26470 Eskisehir, Turkey
来源：
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY | 2013年 / 19卷 / 06期
关键词：
Adsorption; Ethylene; Sepiolite; XRD; TG-DTA; CATALYTIC-ACTIVITY; BOUND WATER; SURFACE; ETHANE; PALYGORSKITE; DEHYDRATION; AGNO3/CLAY; BEHAVIOR; METHANE; GASES;
D O I：
10.1007/s10450-013-9531-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The adsorption of ethylene (C2H4) on sepiolite from EskiAYehir, Turkey and on its salt modified forms (NaS, KS, CaS and MgS) and treated with 1, 3 and 5 M HCl solutions (SH, S3H and S5H) was investigated. The sepiolite samples were characterized using X-ray diffraction, X-ray fluorescence, thermogravimety, differential thermal analysis and N-2 adsorption methods. The C2H4 adsorption isotherms of all clay samples were obtained at 20 A degrees C up to 37 kPa. The uptake of C2H4 decreased as HS > CaS > NaS > S > MgS > KS > H3S > H5S for sepiolite samples. Capacity of sepiolites for C2H4 ranged from 0.478 to 0.622 mmol/g. It was found that the adsorbed amount of C2H4 on sepiolite samples decreased with increasing acid concentrations.
引用
收藏
页码：1083 / 1091
页数：9
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