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Synthesis and characterization of Cu-phthalocyanine hybrid TiO2 sol

Title
Synthesis and characterization of Cu-phthalocyanine hybrid TiO2 sol
Authors
Jang, Byeong UkChoi, Jae HongLee, Sung JunLee, Se Geun
DGIST Authors
Lee, Sung JunLee, Se Geun
Issue Date
2009-07
Citation
Journal of Porphyrins and Phthalocyanines, 13(7), 779-786
Type
Article
Article Type
Article
Keywords
Dispersion StabilityNano ParticlePDTPhotosensitizerReactive Oxygen Species (ROS)Sol-GelTiO2
ISSN
1088-4246
Abstract
TiO2 sol was prepared by a sol-gel method. Sodium polymethacrylate (PMAA) was added to TiO2 sol, resulting in a stable TiO2-PMAA. The copper(II) phthalocyanine tetrasulfonate (CuPcTs) was used to sensitize nanocrystalline TiO2 photocatalyst. The hybrid nanoparticles had an average particle size of 35 nm and core-shell type morphology was observed using a TEM. For the preparation of TiO 2-CuPcTs, TiO2 was directly complexed with CuPcTs, leading to a particle size of 100 nm by a sonication treatment. The photodegradation of the hybrid type photosensitizer was measured using AO7 as an indicator with He-Ne laser with wavelength 633 nm. The efficiency of singlet oxygen generation was also measured by the reduction ratio of concentration of trans-1-(2′-methoxyvinyl) pyrene (MVP) responding to the change of fluorescene emission at 420 nm, depending on the irradiation time. © 2009 World Scientific Publishing Company.
URI
http://hdl.handle.net/20.500.11750/5418
DOI
10.1142/S1088424609001054
Publisher
World Scientific Publishing Co. Pte Ltd
Related Researcher
Files:
There are no files associated with this item.
Collection:
Magnet-Controlled Materials Research Group1. Journal Articles


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