1. Beijing University of Chemical Technology State Key Laboratory of Organic-Inorganic Composites 100029 Beijing China
2. Beijing University of Chemical Technology Research Center of the Ministry of Education for High Gravity Engineering and Technology 100029 Beijing China
3. Jiangsu Yabang Dyes Co. Ltd 213163 Changzhou China
4. Coal Science and Technology Research Institute Company Mine Oil Products Branch 100013 Beijing China