Carbonization of waste PVC to develop porous carbon material without further activation

2006 
Abstract Efficient removal of chlorine from PVC achieved by two-stage heat-treatment (280 and 410 °C) provided chlorine-free isotropic pitch containing additive. The pitch was stabilized and carbonized into porous carbons with surface areas of ∼300 m 2 /g. Resultant porous carbons showed three pore structures of supermicropore, micropore and mesopore. The generation of CO 2 from the decomposition of the CaCO 3 additive in waste PVC is responsible for the development of porous structures. The surface area of the carbonized product increased after the removal of CaO.
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