Funding for this research was provided by:
the Shanghai Science and Technology Commission of Shanghai Municipality, China (15DZ1205800)
the Shanghai Professional Development Funding, China (201644, 201528)
the National High Technology Research and Development Program of China (SS2013AA062608)
the National Natural Science Foundation of China (41401357)
the Shanghai Municipal Natural Science Foundation, China (13ZR1460200)
the Technology Innovation Foundation of Shanghai Academy of Environmental Sciences, China (CX201407)