Study on effect of chemical impregnation on the surface and porous characteristics of activated carbon fabric prepared from viscose rayon

被引：14

作者：

Bhati, Surendra ^{[1
]}

Mahur, J. S. ^{[1
]}

Dixit, Savita ^{[2
]}

Chobey, O. N. ^{[1
]}

机构：

[1] Govt Narmada PG Coll, Dept Chem, Hoshangabad 461001, Madhya Pradesh, India

[2] Maulana Azad Natl Inst Technol, Dept Chem, Bhopal 462016, Madhya Pradesh, India

来源：

CARBON LETTERS | 2014年 / 15卷 / 01期

关键词：

activated carbon fabric; Brunauer-Emmett-Teller surface area; microporosity; impregnation; PORE-SIZE; ADSORPTION; FIBERS; TEMPERATURE; SHELL; CO2;

D O I：

10.5714/CL.2014.15.1.045

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, synthetic viscose rayon fabric has been used for preparing activated carbon fabric (ACF), impregnated with different concentrations of H3PO4. The effect of H3PO4 impregnation on the weight yield, surface area, pore volume, chemical composition and morphology of ACF were studied. Experimental results revealed that both Brunauer-Emmett-Teller surface area and micropore volume increased with increasing H3PO4 concentration; however, the weight yield and microporosity (%) decreased. It was observed that samples impregnated at 70 degrees C (AC-70) give higher yield and higher microporosity as compared to 30 degrees C (AC-30). The average pore size of the ACF also gradually increases from 18.2 to 19 and 16.7 to 20.4 angstrom for 30 degrees C and 70 degrees C, respectively. The pore size distribution of ACF was also studied. It is also concluded that the final ACF strength is dependent on the concentration of impregnant.

引用

页码：45 / 49

页数：5

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