공업화학 (Applied Chemistry for Engineering)

  • 제28권5호
  • /
  • Pages.521-528
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  • 2017
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  • 1225-0112(pISSN)
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  • 2288-4505(eISSN)
한국공업화학회 (The Korean Society of Industrial and Engineering Chemistry)
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폐 LCD 패널유리를 이용한 제올라이트의 합성

Synthesis of Zeolite from Waste LCD Panel Glass

  • 이철태 (단국대학교 화학공학과)
  • Lee, Chul-Tae (Department of Chemical Engineering, Dankook University)
  • 투고 : 2017.06.08
  • 심사 : 2017.07.14
  • 발행 : 2017.10.10
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초록

폐 LCD 패널유리의 재활용방안을 찾고자, 폐 LCD 패널유리를 원료로 사용하여 수열반응에 의해 이온교환성능을 갖는 제올라이트 합성공정을 조사하였다. 폐 LCD 패널유리는 이온교환성능을 갖는 제올라이트의 제조 원료로 사용될 수 있음을 보여주었다. 이온교환능력을 갖는 제올라이트의 제조를 위한 조건은 폐 LCD 패널유리의 Al성분에 대한 Si성분의 몰비 2.0~2.8, 수열반응온도 $100^{\circ}C$, 수열반응시간 12 h이다. 상기조건에서 Al성분에 대한 Si성분의 몰비(Si/Al mole ratio)를 2.0으로 하는 경우 A형 제올라이트가 합성되며, 몰비를 2.8의 조건으로 유지하는 경우 P형 제올라이트의 생성된다. 폐 LCD 패널유리를 이용하여 제조된 A형 제올라이트는 양호한 이온교환능력 및 중금속 흡착능력을 보여 주었으며, 결정상이 큐빅상으로 안정적으로 성장할수록 이온 교환능력은 우수하다.

To find a recycling method for waste liquid crystal display (LCD) panel glasses, we investigated the synthesis process of zeolite with an ion exchange ability by hydrothermal reaction using waste LCD panel glass as a raw material. It was shown that the waste LCD panel glass can be used as a raw material for the production of zeolites having the ion exchange ability. Following conditions for the synthesis of the zeolite with an ion exchange ability were required : the molar ratio of Si to Al components of the waste LCD glass needs to be 2.0 to 2.8, and the temperature of $100^{\circ}C$ and reaction time of 12 hours are needed for the hydrothermal reaction. Based on the required conditions previously mentioned, the A type zeolite was synthesized when the molar ratio of the Si to Al component was 2.0, and the P type zeolite was produced when the molar ratio was 2.8. The type A zeolite synthesized by using the waste LCD panel glass showed a good ion exchange ability and heavy metal adsorption ability. Also, an excellent ion exchange capacity was observed as the crystal phase grows stably in a cubic phase.

키워드

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피인용 문헌

  1. High Sulfate Attack Resistance of Reinforced Concrete Flumes Containing Liquid Crystal Display (LCD) Waste Glass Powder vol.12, pp.12, 2019, https://doi.org/10.3390/ma12122031