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海洋有机地球化学实验室II 5 t9 a% y0 x6 H$ }6 W7 b
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课题组负责人及老师介绍: 4 \+ v3 k6 z+ F
李先国 教授,博士生导师 $ l0 C- s: c. M$ X2 \
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冯丽娟教授,硕士生导师
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张大海 副教授,硕士生导师 / @! I" u: ~8 |) O4 e
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, R" ~# w' p$ D+ F 姚硕 讲师
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课题组研究领域与方向  ( T9 _6 G6 I0 N9 v# O+ k1 ` J3 w" I
目前课题组主要开展四个方向的研究,分别是: 1 V& N$ j4 m& I4 j( ]% A6 j% C
(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。
' {" [ C+ S4 p1 D0 B5 l (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。
/ C* { e7 g$ }3 @ g. E5 j. k (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。
( j0 n4 D2 u- R$ v; V* X (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。 $ p. `" l! ~5 J7 k+ u; @- B
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课题组重要成果 # \0 n' ?( G, p9 f9 n8 }0 k# ^; C# F
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.
' M% |, T$ o2 C4 J# {: P1 ~ 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.
6 ^8 _/ J$ k) t1 k/ d 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. ; y" V1 S( W5 [. {+ f
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. 4 I( j3 _+ E3 x8 l( Y0 z
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.
2 v' U' U2 y. g$ D" D/ j7 Q 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. + n! z- k! Z& U) b
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.
! W" T' [ W: r1 q) _& k- V* y 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. 4 }% b& }6 a2 s0 C
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