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Dehydrochlorination of Plyvinylchloride on the Al-containing Gaphitic-C<sub>3</sub>N<sub>4</sub>
( Song Yi Bae ),( Sung Ho Jyun ),( Dong Hyun Lee ),( Hyeong San Kye ),( Jong Wook Bae ) 한국폐기물자원순환학회(구 한국폐기물학회) 2015 한국폐기물자원순환학회 3RINCs초록집 Vol.2015 No.-
Polyvinylchloride(PVC) is one of the general-purpose polymers with a lower production cost and it also has an excellent processing characteristics to be properly utilized in the products such as the building timbers and household goods through calendaring and extrusion processes. The lower thermal stability of the waste PVC can generate chlorinated products through the unzipping degradation mechanisms, which can cause severe corrosion problems of equipments during the incineration process. One of the possible chemical recycling routes of the waste PVC is the dehydrochlorination reaction using an environmentally benign solvent. In the present study, graphitic carbon nitrides (g-C<sub>3</sub>N<sub>4</sub>) having abundant Lewis acid sites were prepared by melem-based synthesis method and they were further modified with alumina during the preparation step to verify the activity of dehydrochlorination of waste PVC. The metal-free Al-modified g-C<sub>3</sub>N<sub>4</sub> was found to be stable during dehydrochlorination reaction in the PEG400 medium, and the activity of PVC degradation on the Al-modified g-C<sub>3</sub>N<sub>4</sub> was found to be higher on the 10wt%Al-modifed g-C<sub>3</sub>N<sub>4</sub> due to the proper amount of acid sites by producing HCl selectively.