1. School of
Chemistry and Chemical
Engineering, Shanxi University, 92 Wucheng
Road, Taiyuan 030006, China
2. Department of Chemical Engineering, Texas Tech University, Sixth and Canton, Lubbock, Texas
79409, United States
3. Sphinx Scientific Laboratory Corporation, 1250 1/2 E. State Street, Sycamore,
Illinois 60178, United States