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Oil/Water Separation Technology by MXene Composite Membrane: A Review

MXene 복합막에 의한 기름/물 분리 기술: 총설

  • Lee, Byunghee (Energy and Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University) ;
  • Patel, Rajkumar (Energy and Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University)
  • 이병희 (연세대학교 언더우드학부 융합과학공학부 에너지환경융합전공) ;
  • 라즈쿠마 파텔 (연세대학교 언더우드학부 융합과학공학부 에너지환경융합전공)
  • Received : 2021.10.18
  • Accepted : 2021.10.26
  • Published : 2021.10.31

Abstract

Climate change results in unusual weather pattern and affects annual rain fall severely. At the same time, growing industrialization leads to higher energy demand and leakage from petrochemical industry and tanker leads to water pollution. In this scenario, finding out solution to generate clean water is highly essential. For oil/water separation, there are several methods available such as chemical precipitation and adsorption but membrane separation technique is considered to be a more cost and energy efficient process. Amphiphilicity nature of membrane are enhanced by making composite membrane with 2D material such as MXene, resulting in good electrical conductivity and hydrophilicity. This review is mainly classified into two sections: pure MXene and modified MXene. A variety of polymer is used to prepare composite membranes and MXene is modified to further enhance the properties suitable for particular applications.

기후 변화는 비정상적인 날씨 패턴을 야기하며 연간 강수량에 지대한 영향을 미친다. 이와 더불어 산업화의 가속화는 에너지 수요를 증가시키며 석유화학 산업폐수의 누수와 유조선의 유출을 초래함으로써 수질 오염을 악화시킨다. 이러한 부정적인 여건 속에서 정수를 효율적으로 추출해내는 해결책을 강구하는 것이 요구된다. 기름/물 분리를 위해 화학적 침전 및 흡착에 의한 분리 등과 같은 방식을 운용할 수 있지만 분리막 기술이 비용 및 에너지 측면에서 더 효율적이다. 분리막의 양친성은 전기 전도성과 친수성이 뛰어난 MXene이라는 2차원소재를 도입하여 향상시킬 수 있다. 본 총설에서는 향상된 분리막 성능의 사례를 크게 순수 MXene이 적용된 사례와 변형된 MXene이 적용된 사례로 나누어진 목차로 전개할 것이다. 복합 분리막을 제조하기 위해 다양한 고분자가 사용되었으며 각 사례에서 MXene은 특정 용도에 적합한 특성을 더욱 강화시켜 주었다.

Keywords

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