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13 Catalytic carbonization of chlorinated poly(vinyl chloride) microfibers into carbon microfibers with high performance in the photo-degradation of Congo red
13 Catalytic carbonization of chlorinated poly(vinyl chloride) microfibers into carbon microfibers with high performance in the photo-degradation of Congo red
A simple approach was reported to prepare carbon microfibers embedded with octahedral Fe3O4 crystals (Fe/CMFs) through catalytic carbonization of chlorinated poly(vinyl chloride) (CPVC) microfibers using Fe3O4 as catalyst at 700 °C. Without Fe3O4, irregular carbon was obtained. However, after adding a proper amount of Fe3O4, carbon microfibers with uniform size were prepared. The influence of Fe3O4 content on the morphology of carbon microfibers was investigated. The resultant Fe/CMFs were used as heterogeneous Fenton catalysts and showed high photodegradation efficiency of Congo red under UV or sunlight irradiation. This indicated that the Fe/CMFs had the potential application in wastewater treatment. More importantly, this method provides a novel way to prepare functional carbon (or carbon-based) materials with various morphologies such as spheres, fibers, and foams.
