Photodegradation activity of polyvinyl chloride (PVC)–perchlorinated iron (II) phthalocyanine (FePcCl16) composite film

In this paper, a novel kind of photodegradable PVC–FePcCl16 composite film was prepared by homogeneous embedding FePcCl16 into the commercial PVC plastic. The photodegradation performance of as-prepared film has been investigated in the ambient air under UV light irradiation by means of weight loss monitoring, FT-IR spectroscopy, UV–Vis spectroscopy. In comparison with the pure PVC film, higher weight loss rate, increasing carbonyl peak intensity and accelerating dehydrochlorination were observed. These results indicate that the PVC–FePcCl16 composite film has a higher photodegradation activity owing to the FePcCl16. Moreover, FePcCl16 has good photostability in the photoreaction. The possible photodegradation mechanism of PVC–FePcCl16 composite film was also discussed.

In comparison with the pure PVC film, PVC–FePcCl16 composite film has a higher solid-phase photodegradation activity owing to the FePcCl16.Figure optionsDownload high-quality image (74 K)Download as PowerPoint slideResearch highlights
► A novel kind of photodegradable PVC–FePcCl16 composite film was prepared by homogeneous embedding FePcCl16 into the commercial PVC plastic.
► The solid-phase photodegradation activity of PVC–FePcCl16 composite film was significantly higher than that of pure PVC film.
► Both dehydrochlorination and further photooxidative degradation contribute considerably to the photodegradation of PVC–FePcCl16 composite film.