Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Preparation of Spherical TiO2 Nanoparticles Using Amphiphilic PCZ-r-PEG Random Copolymer Template Membrane

양친성 PCZ-r-PEG 랜덤 공중합체 분리막을 이용한 구형 이산화티타늄 나노입자의 제조

  • Lee, Jae Hun (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Patel, Rajkumar (Energy and Environmental Science and Engineering, Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University)
  • Received : 2019.06.24
  • Accepted : 2019.06.27
  • Published : 2019.06.30
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Abstract

Amphiphilic PCZ-r-PEG random copolymer assisted solvothermal process is used to prepare mesoporous $TiO_2$ microspheres generated from nanoparticles by self-assembly method. Synthesized PCZ-r-PEG is characterized by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), gel permeation chromatography (GPC) and transmission electron microscopy (TEM). The mesoporous $TiO_2$ are prepared by PCZ-r-PEG, glucose, water in tertrahydrofuran solution at $150^{\circ}C$ for 12 h and the $TiO_2$ microspheres are calcined at $550^{\circ}C$ for 30 min to further crystallize and organic residue are removed. Morphology and crystallization phase is characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD) respectively. The mesoporous $TiO_2$ crystallized in pure anatase phase with diameter of $300{\pm}20nm$.

양친성 PCZ-r-PEG 랜덤 공중합체를 기반으로 한 수열합성법을 통해 자가조립된 메조기공 이산화티타늄 마이크로 스피어를 합성하였다. 중합된 PCZ-r-PEG는 푸리에 변환 적외분광법(fourier transform infrared spectroscopy, FT-IR), 핵자기공명(nuclear magnetic resonance, NMR), 젤 투과 크로마토그래피(gel permeation chromatography, GPC) 그리고 투과전자 현미경(transmission electron microscopy, TEM)을 통해 그 특성이 분석되었다. 다공성 이산화티타늄 입자는 PCZ-r-PEG, 글루코스(glucose), 물을 테트라히드로푸란(tetrahydrofuran, THF) 용액에 분산시킨 뒤 $150^{\circ}C$, 12시간 동안 반응시켰다. 다공성 이산화티타늄 입자의 구조와 결정성 분석을 위해 주사전자현미경(scanning electron microscopy, SEM)과 엑스선 회절(X-ray diffraction, XRD)이 사용되었다.

Keywords

References

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