SO3H-functionalized hollow mesoporous carbon sphere prepared by simultaneously achieving sulfonation and hollow structure
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SO3H-functionalized hollow mesoporous carbon sphere (HMCS–SO3H) was successfully synthesized via a facile strategy using inexpensive resins as precursor in combination with metal oxide template. By the one-step thermal treatment with sulfuric acid, it simultaneously achieved the formation of hollow spherical structure and sulfonation functionalization. HMCS–SO3H catalyst possessed superior mesoporosity, uniform sphere morphology and high acidity, which endowed it excellently catalytic property for esterification of oleic acid. In addition, HMCS–SO3H exhibited prominent stability and reusability.
KeywordsCarbon materials Mesoporous Hollow sphere Sulfonation
The authors gratefully acknowledge the financial support from the program for New Century Excellent Talents in University (NCET-12-0696), the Leading Talents for Zhengzhou Science and Technology Bureau (Grant No. 131PLJRC649), the program for University Innovative Talents of Science and Technology in Henan Province (Grant No. 2012HASTIT03), National Natural Science Foundation of China (51472102).