Health & Environmental Research Online (HERO)


Print Feedback Export to File
6917224 
Journal Article 
Synthesis of Polymeric Phthalocyanine Sulfonate Photosensitizer and Its Photodegradation on Rhodamine B in Aqueous Medium 
Zhao, P; Woo, Jewan; Park, YS; Song, Y; Zhang, F; , 
2010 
1 
Macromolecular Research
ISSN: 1598-5032 
POLYMER SOC KOREA 
SEOUL 
496-503 
WOS:000282470200013 
Novel phthalocyanine sulfonate (H2PPcSx) was synthesized from the sulfonation of a steric polymeric phthalocyanine and investigated as a photocatalyst in a homogenous system. The molecular weight of H2PPcSx was characterized as 9213-11692 by MALDI-TOF MS, classified as an oligomer with a 14-18 degree of polymerization. The electronic spectrum indicated a less aggregative tendency of H2PPCSx than the usual monomeric phthalocyanine photocatalyst. Efficient photodegradation of butyl Rhodamine B (bu Rh B) catalyzed by H2PPcSx was achieved in a homogenous solution; the spectral character indicated that decomposition occurred on the benzene ring in the Rh B molecular. For a 50 mg L-1 bu Rh B solution, the percentage degradation reached 95% in 4 h using 100 mg H2PPcSx as a photocatalyst. A mechanism involving the participation of both singlet oxygen and radicals was established for the photodegradation.