( h+ K5 `8 C! t1 N 海洋有机地球化学实验室II
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课题组负责人及老师介绍：
$ b- n# d7 J3 ?" ^ 李先国 教授，博士生导师 $ C) M: C1 } A4 [. Z$ H4 u
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冯丽娟教授，硕士生导师
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% u( N1 M8 Z' S2 w# j 张大海 副教授，硕士生导师
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5 r( M) ~* d: Z 姚硕 讲师
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课题组研究领域与方向 M9 o; f+ ] G+ @) t
目前课题组主要开展四个方向的研究，分别是： 1 M6 R) H; `/ o) r; k- h) ?
（一）、陆源有机物及其沉积记录：以木质素、正构烷烃、脂质等为特征生物标志物，研究其在海洋中的沉积记录及其环境地球化学意义。
5 r$ Q; k+ C( v4 i; u$ V （二）、现代有机污染物及其转化机理：通过实验室模拟实验中降解中间产物或/和代谢产物的分析、稳定同位素分馏效应的测定以及理论计算，与现场测定结果相结合，研究典型有机污染物在环境中的来源、分布及其光降解和生物降解机理，结合定量构效关系研究，评价其生态风险。目前已经开展的污染物研究包括多环芳烃（PAH）、多氯联苯（PCB）、多溴联苯醚（PBDE）、德克隆（DP）、塑化剂（PAES）、烷基酚（NP和OP）、微塑料（MP）等。 " y3 [/ S9 I' u/ E7 o
（三）：海洋资源化学：通过分析海洋来源物质的成分、结构，确定其可能的生物能量来源，判别其使用价值，尤其是潜在价值。通过各种化学方法或手段转化为可持续资源、能源，如浒苔液化、镁盐晶须、人工海水等。针对当前环境氮、硫污染问题，从源头出发，开展气体、液体的除氮、脱硫工艺研究。 & `2 \& j6 }3 {
（四）、微生物化学：通过分析海洋来源微生物群落结构、功能基因、次级代谢产物以及中间产物来探索小分子活性物质的生物合成途径、机理，进一步确定元素迁移路径和能量的转化方式，同时探索发现活性天然产物。通过特殊环境来源微生物的驯化，探索微生物在污染物的去除、降解方面的应用。 + [% U2 Z8 V# m+ g c+ U
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课题组重要成果
! V% ~( }* w, F2 M 1)Chanjuan Li, Dahai Zhang, Jialin Peng, Xianguo Li*.The effect of pH, nitrate, iron (III) and bicarbonate on photodegradation of oxytetracycline in aqueous solution. Journal of Photochemistry and Photobiology A: Chemistry, 2018, 356: 239–247. 4 f. O9 R$ j$ q( A
2)Yanxia Lin, Wei Deng*, Shengyong Li, Jiafu Li, Guoguang Wang, Dahai Zhang, Xianguo Li*. Congener profile, distribution, sources and ecological risk of parent and alkyl-PAHs in surface sediments of Southern Yellow Sea, China. Science of the Total Environment, 2017, 580: 1309–1317.
# ^+ N# H% ]( y4 C1 U+ m: [ 3)Guoguang Wang, Jialin Peng, Ting Hao, Yao Liu, Dahai Zhang, Xianguo Li*. Distribution and region-specific sources of Dechlorane Plus in marine sediments from the coastal East China Sea. Science of the Total Environment, 2016, 573: 389–396. / R% e) {8 e) C
4)Guoguang Wang, Jialin Peng, Dahai Zhang, Xianguo Li*. Characterizing distributions, composition profiles, sources and potential health risk of polybrominated diphenyl ethers (PBDEs) in the coastal sediments from East China Sea. Environmental Pollution, 2016, 213: 468-481. 7 _$ p( h# K7 Q
5)Guoguang Wang, Jialin Peng, Xiang Xu, Dahai Zhang, Xianguo Li*. Polybrominated diphenyl ethers in sediments from the Southern Yellow Sea: Concentration, composition profile, source identification and mass inventory. Chemosphere, 2016, 144: 2097-2105. % Y, X z# C5 Y" x8 T7 e
6)Jiafu Li, Han Dong, Xiang Xu, Bin Han, Xianguo Li*, Chenjian Zhu, Chen Han, Shaopeng Liu, Dandan Yang, Qian Xu, Dahai Zhang*. Prediction of the bioaccumulation of PAHs in surface sediments of Bohai Sea, China and quantitative assessment of the related toxicity and health risk to humans. Marine Pollution Bulletin, 2016, 104: 92-100. . O3 ] N& y2 J7 k) W# u3 n+ ~! w
7)Jialin Peng, Guoguang Wang, Dahai Zhang, Dongmei Zhang, Xianguo Li*. Photodegradation of nonylphenol in aqueous solution by simulated solar UV-irradiation: The comprehensive effect of nitrate, ferric ion and bicarbonate. Journal of Photochemistry and Photobiology A: Chemistry, 2016, 326: 9–15. # O4 P* m* g% Y7 V1 Y6 }
8)Yan Zhang, Ying Liu, Han Dong, Xianguo Li, Dahai Zhang*. The nonylphenol biodegradation study by estuary sediment-derived fungus Penicillium simplicissimum. Environmental Science and Pollution Research, 2016, 23(15): 15122–15132. . L( L- B) C' U2 A5 Y
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