1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology E‐208 Western Campus, 2 Ling‐Gong Road, Dalian 116024, China, Fax: +86‐411‐8498‐6236, http://finechem.dlut.edu.cn/photochem
2. Institut de Science des Matériaux de Mulhouse IS2M, LRC CNRS 7228, ENSCMu‐UHA, 15, rue Jean Starcky, 68057 Mulhouse Cedex, France