Synthesis of "Ice Cube" Shaped Zeolite A Type and Cu2+ Ion-Exchanged Zeolites and Study of Their CO2 Adsorption Performance

被引：0

作者：

Madhu, Jayaprakash ^{[1
]}

Santhanam, Agilan ^{[1
]}

Velauthapillai, Dhayalan ^{[2
]}

机构：

[1] Coimbatore Inst Technol, Dept Phys, Coimbatore 641014, Tamil Nadu, India

[2] Western Norway Univ Appl Sci, Fac Hlth & Social Sci, Postbox 7030, N-5020 Bergen, Norway

来源：

ACS OMEGA | 2024年 / 9卷 / 46期

关键词：

RICE HUSK ASH; CARBON-DIOXIDE; CAPTURE; N-2; EQUILIBRIUM; SELECTIVITY; DESORPTION; NITROGEN; STORAGE; ZSM-5;

D O I：

10.1021/acsomega.4c05487

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, zeolite type A and four Cu2+ ion-exchanged zeolites were synthesized through cationic ion exchange process with Cu concentrations of 0.05, 0.1, 0.15, and 0.2 M respectively. The physicochemical properties of both the prepared and ion-exchanged zeolites were thoroughly analyzed. Field Emission Scanning Electron Microscopy (FESEM) micrographs revealed that the synthesized zeolites exhibited an "ice cube"-shaped morphology, and this morphology was maintained even after the ion exchange process. N2 adsorption/desorption studies indicated a typical type IV isotherm with an H3 hysteresis loop for both the prepared and Cu2+ ion-exchanged zeolites. CO2 adsorption data followed a type I isotherm, with the highest adsorption capacity of 4.02 mmol/g observed for the 0.1 M Cu2+ ion-exchanged zeolites. The adsorption behavior was modeled using a nonlinear isotherm, with good agreement between experimental and fitted data.

引用

页码：45926 / 45942

页数：17

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