山西省自然科学基金2014011036-2;山西省高等学校科技创新项目2014110;山西省回国留学人员科研项目No.2013-16the Natural Science Foundation of Shanxi Province2014011036-2;the Foundation of Educational Committee of Shanxi Province in China2014110;the Research Project Supported by Shanxi Scholarship Council of China2013-16