1. Department of Environmental Science and Engineering University of Shanghai for Science and Technology Shanghai 200093 P. R. China
2. Institute of Photochemistry and Photocatalyst University of Shanghai for Science and Technology Shanghai 200093 P. R. China
3. School of Resources and Environmental Engineering Jiangsu University of Technology Changzhou 213001 P. R. China
4. Department of Ultrasound in Medicine Shanghai Jiao Tong University Affiliated Sixth People's Hospital & Shanghai Institute of Ultrasound in Medicine Shanghai 200233 P. R. China