암석학회지 (The Journal of the Petrological Society of Korea)

한국암석학회 (The Petrological Society of Korea)
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다공성 구조가 발달한 장석반암의 흡착과 항균성 연구

Adsorption Capacity and Antibacterial Activity of Porous Feldspar Porphyry

  • 김성욱 ((주)지아이 지반정보연구소) ;
  • 최은경 ((주)지아이 지반정보연구소) ;
  • 조진우 (한국건설기술연구원 지반연구소)
  • Kim, Sung-Wook (Geo-information Research Group Co. Ltd.) ;
  • Choi, Eun-Kyeong (Geo-information Research Group Co. Ltd.) ;
  • Cho, Jinwoo (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
  • 투고 : 2017.05.25
  • 심사 : 2017.06.23
  • 발행 : 2017.06.30
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초록

풍화작용으로 암석의 표면에 기공이 생성되며 주 구성 광물인 장석에서 특히 다공질의 표면구조가 증가한다. 다공질 장석반암을 이용하여 개발한 환경개선 재료의 성능을 평가하기 위해 흡착과 항균 실험을 수행하였다. 경량기포와 혼합하여 제작한 길이 10 cm 장석필터의 여과 실험에서 대부분의 중금속이 흡착되었고 여과 시간을 제어하여 흡착율을 조절할 수 있었다. 쉐이크플레스크법(shake flask method) 항균도 시험에서 5%와 7% 장석분말을 도포한 직물은 98%와 99.9%의 매우 높은 항균도를 보였다. 다공질 구조의 영향으로 양이온치환능력은 분말의 입자가 작아질수록 큰 값을 보이며, $10{\mu}m$의 입경에서 114.63 meq/100g를 보였다. 이상의 결과에서 산업광물로서 다공질 장석반암의 잠재적 가치가 충분한 것으로 판단된다.

As weathering processes, micro-cavities are formed on the surface of rocks, and in particular, the porous structure is increased in feldspar. Adsorption and antibacterial tests were carried out to clarify the environmental function of porous feldspar porphyry. Almost all the heavy metals were adsorbed in the feldspar filter and the adsorption rate could be controlled by changing the filter length. The shake flask method of fabric coated with 5% and 7% feldspar powder showed very high antibacterial activity of 98% and 99.9%, respectively. The cation exchange capacity at a particle size of $10{\mu}m$ was 114.63 meq/100g probably due to the porous structure. The potential value of porous feldspar porphyry as a resource is sufficient based on the results of the experiment.

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