Fabrication and photophysical properties of singlet oxygen generating nanoporous membrane

Kang Kyun Wang, Min Su Jung, Kyong Hoon Choi, Hee Won Shin, Seung Im Oh, Ji Eun Im, Da Hee Kim, Yong Rok Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The nanoporous alumina membranes (NAMs) were fabricated by a two-step aluminium anodic oxidation process. The fabricated NAMs have controllable pore diameters (40-80. nm) and unidirectionally ordered pore direction. The surface of the NAM was modified with the organo-silane agent (APTES: (aminopropyl)triethoxysilane) to induce ionic bonding between the NAM and the photosensitizer (TSPP: tetrakis(p-sulfonatophenyl)porphyrin). The morphology and chemical nature of the surface modified NAM were studied by field emission scanning electron microscope (FE-SEM), FT-IR spectra, and thermo gravimetric analysis (TGA). Furthermore, this singlet oxygen generating nanoporous membranes (SGNMs) were investigated, in detail, to understand their photophysical properties and the singlet oxygen generation efficiency which were the essential factors for their applications. Steady-state spectroscopies and nanosecond laser induced time-resolved spectroscopy were applied to get information on all photophysical properties including the lifetime of singlet oxygen which depended on the pore diameter of the SGNM.

Original languageEnglish
Pages (from-to)3905-3908
Number of pages4
JournalSurface and Coatings Technology
Volume205
Issue number15
DOIs
Publication statusPublished - 2011 Apr 25

Fingerprint

Singlet Oxygen
Aluminum Oxide
membranes
Membranes
Fabrication
fabrication
Oxygen
Alumina
aluminum oxides
oxygen
porosity
Spectroscopy
Silanes
Photosensitizing Agents
Photosensitizers
Porphyrins
Anodic oxidation
Aluminum
porphyrins
silanes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Wang, Kang Kyun ; Jung, Min Su ; Choi, Kyong Hoon ; Shin, Hee Won ; Oh, Seung Im ; Im, Ji Eun ; Kim, Da Hee ; Kim, Yong Rok. / Fabrication and photophysical properties of singlet oxygen generating nanoporous membrane. In: Surface and Coatings Technology. 2011 ; Vol. 205, No. 15. pp. 3905-3908.
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Fabrication and photophysical properties of singlet oxygen generating nanoporous membrane. / Wang, Kang Kyun; Jung, Min Su; Choi, Kyong Hoon; Shin, Hee Won; Oh, Seung Im; Im, Ji Eun; Kim, Da Hee; Kim, Yong Rok.

In: Surface and Coatings Technology, Vol. 205, No. 15, 25.04.2011, p. 3905-3908.

Research output: Contribution to journalArticle

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AU - Jung, Min Su

AU - Choi, Kyong Hoon

AU - Shin, Hee Won

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AU - Kim, Da Hee

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