Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Preparation and Photocatalyric Properties of Organic-Inorganic Hybrid Abaca Cellulose@Titanium Dioxide Composite

유-무기 하이브리드 형 Abaca 셀룰로오스/이산화 티타늄 복합체의 제조 및 이의 광촉매적 특성

  • Su-A, Kang (Department of Chemical Engineering, Hankyong National University) ;
  • Young-Ho, Kim (Department of Chemical Engineering, Hankyong National University)
  • Received : 2022.12.19
  • Accepted : 2023.01.11
  • Published : 2023.02.10
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Abstract

In this study, an organic-inorganic hybrid composite of Abaca nanocellulose and titanium dioxide was prepared. Abaca nanocellulose was prepared by oxidizing Abaca cellulose using TEMPO (2,2,6,6-tetramethyl-piperidine-1-oxyl) as a catalyst. Titanium dioxide nanoparticles were prepared by the sol-gel method, and a composite was prepared by hybridizing them with nanocellulose. As a result of comparing the properties of the composite and its physical properties according to the change in manufacturing pH, the effect of pH was very large when combining nanocellulose and titanium dioxide, and the optimal bonding performance was shown at pH 8 in this experimental condition. In addition, the prepared composite showed photocatalytic properties, and the higher the content of titanium dioxide, the higher the hydrophilicity of the composite according to UV light irradiation.

본 연구에서는 Abaca 나노 셀룰로오스와 이산화 티타늄(TiO2)의 유-무기 하이브리드 복합체를 제조하였다. Abaca 나노 셀룰로오스는 Abaca 셀룰로오스를 산화시키는 방법으로 제조하였으며, 촉매로서 TEMPO (2,2,6,6-tetramethyl-piperidine-1-oxyl)를 이용하였다. TiO2 나노입자는 sol-gel법으로 제조하였으며 이를 나노 셀룰로오스와 하이브리드(hybrid) 시켜 복합체를 제조하였다. 제조 pH 변화에 따른 복합체의 특성과 그의 물성을 비교해 본 결과, 나노 셀룰로오스와 이산화 티타늄 결합 시 pH의 영향이 매우 컸으며, 본 실험 조건에서 pH 8에서 최적의 결합성능을 나타냈다. 또한, 제조된 복합체는 광촉매 특성을 보였으며, 이산화 티타늄의 함량이 높을수록 UV광 조사에 따라 복합체의 친수성이 증가하였다.

Keywords

References

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