견운모와 규조토에 대한 암모니아 기체의 흡착특성

이승수; 김진수; 윤창연; 이종협; Suseong Lee; Jinsoo Kim; Chang Yeon Yunn; Jongheop Yi

Clean Technology, Vol.12, No.3, 175-181, September, 2006

Export Citation

견운모와 규조토에 대한 암모니아 기체의 흡착특성

Adsorption characteristics of the sericite and diatomite for ammonia gas

이승수, 김진수, 윤창연, 이종협 ^†

서울대학교 공과대학 화학생물공학부, 151-742 서울특별시 관악구 신림2동 산56-1번지

Suseong Lee, Jinsoo Kim, Chang Yeon Yunn, and Jongheop Yi^†

School of Chemical and Biological Engineering, Seoul National University, San 56-1, Shilim-dong, Gwanak-gu, Seoul 151-742, Korea

E-mail:

초록

실내 공기오염 방지를 위하여 견운모와 규조토를 건축내장재로 사용하기 위한 물리ㆍ화학적 특성을 조사 하였다. 특히 규조토의 경우 주사전자현미경(Scanning Electron Microscope: SEM)으로 표면에 분포하는 규조화석의 존재를 확인하였으며, 질소흡탈착법(Brunauer-Emmett-Teller (BET) method)을 통해 5nm 이하의 기공이 고르게 분포하고 비교적 넓은 비표면적을 가지는 것을 알 수 있었다. 이러한 규조토와 비교하여 견운모는 기공특성이 보이지 않았으며 비표면적 역시 상대적으로 작은 것으로 나타났다. 따라서, 다공질 구조와 넓은 비표면적으로 인해 규조토가 견운모보다 상대적으로 높은 흡착특성을 가지고 있음을 예상 하였으며, 이를 실험적으로 확인 하였다. 하지만 950℃이상으로 열처리한 결과 규조토는 다공질 규조화석의 연소 및 무기성분의 고온소결로 인해 더 이상 기공 구조를 보이지 않고 비표면적이 감소하였으며, 그 결과 흡착성능 또한 감소하는 경향을 보였다. 결론적으로, 열처리 하지 않은 규조토의 경우 규조화석의 존재로 인해 다공질 구조를 가지며, 넓은 비표면적에 의해 보다 높은 암모니아 흡착특성을 보여 실제로 이와 같은 유해 화합물을 효과적으로 제거할 수 있는 능력이 있음을 보였다.

The feasibility of the use of porous fossil diatoms for indoor air pollution control was investigated via the characterization of physical and chemical properties. The fossil diatoms were observed by SEM(Scanning Electron Microscope). Diatomite had well-distributed pores below 5nm and relatively large surface area compare to sericite. However, no porosity in sericite was found. Results showed that diatomite had better performance than sericite in respect to porosity and large surface area. But diatomite which is thermally treated at 950℃ has no porosity and low surface area beacuse of combustion of fossil diatoms or calcination of inorganic oxide at high temperature, and has poor adsorption capability of ammonia gas. In conclusion, porous diatomite has relatively high performace to adsorb noxious chemical compounds, such as ammonia gas and VOCs.

Keywords:견운모와 규조토;다공질 규조화석;암모니아 흡착

[References]

Godinot N, Sicard G, Dubois D, Odours and VOC's J., 1, 202 (1995)
Maroni M, Seifert B, Lindvall T, Indoor Air Quality - A comprehensive reference book, Elsevier SciencePub. Co. (1995)
Crump DR, "Sources of concentrations of volatile organic compounds in the indoor air of U.K. homes", Proceeding s of the 2nd International Conference on VOCs in the Environment, Nov. 7-9 London, 235-246 (1995)
World Health Organization(WHO), Indoor Air Quality: Organic Pollutants - Report of a WHO meeting (EURO Reports and Studies No.111), World Health Organization Regional Office for Europe, Copenhagen (1989)
Etkin DS, Ceilings/Walls and IAQ : Health Impacts, Prevention and Mitigation. Indoor Air Quality Update, Cutter Information Corp., Arlington (1994)
Etkin DS, Floor Coverings and IAQ : Health Impacts, Prevention and Mitigation. Indoor Air Quality Update, Cutter Information Corp., Arlington (1994)
Brown VM, Cockram AH, Crump DR, Gardiner D, "Investigations of the volatile organic compound content of indoor air in homes with an odorous damp proof membrane", Proceedings of the 5th International Conference on Indoor Air Quality and Climate (Indoor Air '90), Jul. 29 Aug. 3, Toronto, 575-580 (1990)
Yu JG, Zhao XJ, Zhao QN, Thin Solid Films, 379(1-2), 7 (2000)
Peral J, Domenech X, Ollis DF, J. Chem. Technol. Biotechnol., 70(2), 117 (1997)
Anpo M, Takeuchi M, J. Catal., 216(1-2), 505 (2003)
Waston JS, Separation Methods for Waste and Environmental Applications, Marcel Dekker, New York, 1999, pp. 2332
Ruhl MJ, Chem. Eng. Prog., 89, 37 (1993)
Sinha RK, Industrial Minerals and Rocks, Elsevier Science Pub. Co., 1984, pp. 297-300 (1982)
Kuvart M, Industrial Minerals and Rocks, Elsevier Science Pub. Co. 1984, pp. 297-300 (1984)
Johnstone SJ, Minerals for the chemical and Allied Industries, John Wiley & Sons Inc., New York, 1954, pp.160-164 (1954)
Johnstone SJ, Minerals for the chemical and Allied Industries, John Wiley & Sons Inc., New York, 1954, pp.330-336 (1954)
Yu Y, Mao LBS, "Chinese mica : Supply demand and export", Industrial Minerals (Sep.), 48-51 (2002)
Lesure FG, "Mica" in Brobst, DE, and Pratt, W. P., ed., United States Mineral Resources : U.S. Geological Survey Professional Paper 820, 415-423 (1973)

[Referenced By]

[Related Articles]

[1] Godinot N, Sicard G, Dubois D, Odours and VOC's J., 1, 202 (1995)

[2] Maroni M, Seifert B, Lindvall T, Indoor Air Quality - A comprehensive reference book, Elsevier SciencePub. Co. (1995)

[3] Crump DR, "Sources of concentrations of volatile organic compounds in the indoor air of U.K. homes", Proceeding s of the 2nd International Conference on VOCs in the Environment, Nov. 7-9 London, 235-246 (1995)

[4] World Health Organization(WHO), Indoor Air Quality: Organic Pollutants - Report of a WHO meeting (EURO Reports and Studies No.111), World Health Organization Regional Office for Europe, Copenhagen (1989)

[5] Etkin DS, Ceilings/Walls and IAQ : Health Impacts, Prevention and Mitigation. Indoor Air Quality Update, Cutter Information Corp., Arlington (1994)

[6] Etkin DS, Floor Coverings and IAQ : Health Impacts, Prevention and Mitigation. Indoor Air Quality Update, Cutter Information Corp., Arlington (1994)

[7] Brown VM, Cockram AH, Crump DR, Gardiner D, "Investigations of the volatile organic compound content of indoor air in homes with an odorous damp proof membrane", Proceedings of the 5th International Conference on Indoor Air Quality and Climate (Indoor Air '90), Jul. 29 Aug. 3, Toronto, 575-580 (1990)

[8] Yu JG, Zhao XJ, Zhao QN, Thin Solid Films, 379(1-2), 7 (2000)

[9] Peral J, Domenech X, Ollis DF, J. Chem. Technol. Biotechnol., 70(2), 117 (1997)

[10] Anpo M, Takeuchi M, J. Catal., 216(1-2), 505 (2003)

[11] Waston JS, Separation Methods for Waste and Environmental Applications, Marcel Dekker, New York, 1999, pp. 2332

[12] Ruhl MJ, Chem. Eng. Prog., 89, 37 (1993)

[13] Sinha RK, Industrial Minerals and Rocks, Elsevier Science Pub. Co., 1984, pp. 297-300 (1982)

[14] Kuvart M, Industrial Minerals and Rocks, Elsevier Science Pub. Co. 1984, pp. 297-300 (1984)

[15] Johnstone SJ, Minerals for the chemical and Allied Industries, John Wiley & Sons Inc., New York, 1954, pp.160-164 (1954)

[16] Johnstone SJ, Minerals for the chemical and Allied Industries, John Wiley & Sons Inc., New York, 1954, pp.330-336 (1954)

[17] Yu Y, Mao LBS, "Chinese mica : Supply demand and export", Industrial Minerals (Sep.), 48-51 (2002)

[18] Lesure FG, "Mica" in Brobst, DE, and Pratt, W. P., ed., United States Mineral Resources : U.S. Geological Survey Professional Paper 820, 415-423 (1973)