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Contrary Photodegradative Characterization of Two Organic Compounds by Complexing with Cyclodextrins
Author(s) -
Tang Can,
Zeng QingRu,
Zhou XiHong,
Yang ChengJian
Publication year - 2005
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200591677
Subject(s) - chemistry , pentachlorophenol , photodegradation , solubility , parathion methyl , environmental remediation , solubilization , cyclodextrin , nuclear chemistry , environmental chemistry , organic chemistry , pesticide , contamination , photocatalysis , catalysis , ecology , biochemistry , agronomy , biology
The effectiveness of the solubilization and photodegradation of β ‐cyclodextrin ( β ‐CD) and hydroxypropyl‐ β ‐cyclodextrin (HPCD) on two hydrophobic organic compounds (HOC) of methyl parathion and pentachlorophenol was investigated. The results indicate that the solubilization or photodegradation of two HOC were influenced by complexing with β ‐CD or HPCD. The solubility of pentachlorophenol (PCP) was increased linearly with β ‐CD concentration. The solubility of methyl parathion (MPT) was increased with the increase of β ‐CD concentration initially, however, as the β ‐CD concentration was enhanced above 3 g/L, the solubility was decreased with increase of β ‐CD concentration. The solubilities of two HOC were increased linearly with the increase of HPCD concentration. Although the photodegradation of MPT was improved, the photodegradation of PCP was restrained by complexation of HOC with β ‐CD or HPCD. In a word, the effectiveness of photodegradation or solubilization of HPCD was more significant than that of β ‐CD. One potential application of such a method was the in situ remediation of hydrophobic organic pollutants in contaminated soil and groundwater or industrial waste streams.