writer：Kun Yao, Jiang Gong, Jun Zheng, Lu Wang, Haiying Tan, Guangchun Zhang, Yichao Lin, Hui Na, etc.
keywords：poly(vinyl chloride)
source：期刊
specific source：The Journal of Physical Chemistry C 117 (2013) 17016-17023
Issue time：2013年
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.