国家高技术研究发展计划“863”项目2013AA065805;国家自然科学基金项目31170337;广东省低碳专项2011-051;珠海市科技重大项目PB20041018;珠海市科技攻关项目PC20081008.This work was supported by grants from the National High-Tech R&D Program 863 Program,2013AA065805,National Natural Science Foundation of China 31170337,Guangdong Low-Carbon Program 2011-051,Zhuhai Major Projects of Science and Technology PB20041018,and Key Project of Science and Technology of Zhuhai PC20081008