Research and fabrication of toxic filter materials from Tra Bac coconut shell activated carbon applied in the manufacture of personal respiratory protection devices
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https://doi.org/10.54939/1859-1043.j.mst.79.2022.74-81Keywords:
Activated carbon; Adsorption material; Respiratory protective equipment.Abstract
This paper presents the results of research on making materials to adsorb toxic acidic gases, organic substances from Tra Bac coconut shell activated carbon, and combined with chemical treatment on the laboratory scale. Methods were used for this study consisting of SEM, EDS; BET, and DPC5 (kinetic adsorbent). The results showed that the fabricated filter material has a surface area of 664 m2/g, calculated according to BET, has a protection time with benzene vapor (L= 5 cm, Co(vapor) = 18 mg/L) of 56 minutes; protection time with HCl acid vapor (L= 5 cm, Co (vapor) = 1.1 mg/L) is 280 minutes. The results of the study have exhibited a good ability to filter benzene vapor and HCl vapor. This material has the potential for use in the manufacture of personal respiratory protective equipment.
References
[1]. Nguyen Dinh Hoa, Nguyen Hung Phong, Bui Van Tai (2003), "Study on impregnating Cu, Cr, Ag catalyst additives on activated carbon fabric used as a filter material for toxic gases". Research conference on prevention of nuclear, biological and chemical weapons, Center for Science, Technology and Technology, pp. 266-271.
[2]. Nguyen Hung Phong, Le Xuan Tuan, Bui Van Tai (2003), "Research on preparation of carbon fiber adsorbents", 4th National Collection of Chemical Scientific Reports, Hanoi, pp. 81-86.
[3]. Nguyen Hung Phong (2005), "Activated carbon impregnated with additives, catalysts used in the field of toxic filtration and environmental treatment in Vietnam". Collection of scientific reports at the 5th National Conference on Catalytic Adsorption, pp. 114-123.
[4]. Nguyen Hung Phong, Nguyen Dinh Hoa (2005), "Preparation of acid-absorbing materials on the basis of activated carbon cloth". Collection of Scientific Reports of the 3rd National Conference on Catalysis - Adsorption, pp. 131-136.
[5]. Abdi Atilgan, Huseyin Peker and Hatice Ulusoy (2012), “Effects of different impregnation chemicals on combustion characteristics and decay resistance of wood”, International Journal of Physical Sciences, Vol. 7, No. 47, pp. 6149-6157A.
