Mingren liu was born in linyi in shandong province in 1985 . he is a graduate of university of jinan who majors environment engineering and engages the research of the photocatalysis 刘明仁男1985年生山东临沂人济南大学环境工程专业硕士研究生，主要从事光化学催化方面的学习和实验研究。
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Dong han was born in binzhou in shandong province in 1985 . he is a graduate of university of jinan who majors chemical technology and engages the research of the diesel exhausts purification 刘明仁男1985年生山东临沂人济南大学环境工程专业硕士研究生，主要从事光化学催化方面的学习和实验研究。
