| Home | E-Submission | Sitemap | Contact Us
DOI: https://doi.org/10.4491/eer.2017.045
Adsorption of ammonia using mesoporous alumina prepared by a templating method
Changjoo Yeom, and Younghun Kim
Department of Chemical Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea
Corresponding Author: Younghun Kim ,Tel: +82 2 940 5768, Email: korea1@kw.ac.kr
Received: April 10, 2017;  Accepted: June 6, 2017.
Share :  
Ammonia, NH3, is a key chemical widely used in chemical industries and a toxic pollutant that impacts human health. Thus, there is a need for the development of effective adsorbents with high uptake capacities to adsorb NH3. An adsorbent with a high surface area and a small pore size is generally preferred in order to have a high capacity for the removal of NH3. The use inorganic nanoporous materials as gas adsorbents has increased substantially and emerged as an alternative to zeolite and activated carbon. Herein, mesoporous alumina (MA) was prepared and used as an NH3 adsorbent. MA showed good pore properties such as a uniform pore size and interlinked pore system, when compared to commercial adsorbents (activated carbon, zeolite, and silica powder). MA has free hydroxyl groups, serving as useful adsorption sites for NH3. In an adsorption isotherm test, MA exhibited 4.7-6.5 times higher uptake capacities for NH3 than commercial adsorbents. Although the larger surface areas of adsorbents are important features of ideal adsorbents, a regular and interlinked adsorbent pore system was found to be a more crucial factor to adsorb NH3.
Keywords: Adsorbents | Ammonia | Mesoporous alumina | Nanopore | Toxic gases
PDF Links  PDF Links
Full text via DOI  Full text via DOI
Download Citation  Download Citation
Supplement  Supplement
Editorial Office
464 Cheongpa-ro, #726, Jung-gu, Seoul 04510, Republic of Korea
TEL : +82-2-383-9697   FAX : +82-2-383-9654   E-mail : eer@kosenv.or.kr

Copyright© Korean Society of Environmental Engineers. All rights reserved.                Powerd by M2community
About |  Browse Articles |  Current Issue |  For Authors and Reviewers