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논문 기본 정보

자료유형
학술저널
저자정보
Changjoo Yeom (Kwangwoon University) Younghun Kim (Kwangwoon University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제22권 제4호
발행연도
2017.12
수록면
401 - 406 (6page)

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초록· 키워드

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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.

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ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References

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