陈洪梅—探究阳光下的海洋有机质的生物地球化学循环-18新利体育官网近海海洋环境科学国家重点实验室 - 18新利最新登录_18新利体育官网

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陈洪梅—探究阳光下的海洋有机质的生物地球化学循环

2020/12/30点击次数:


陈洪梅博士于2020年10月加入18新利体育官网近海海洋环境科学国家重点实验室,现任海洋与地球学院副教授。陈洪梅博士本科毕业于18新利体育官网海洋化学系,于2014年获美国欧道明大学化学博士学位,师从Patrick G. Hatcher教授 和Kenneth Mopper教授。2015-2017年在美国橡树岭国家实验室环境部从事博士后研究,师从Baohua Gu教授,2018-2020年在美国欧道明大学化学系担任研究助理教授。

陈洪梅博士长期从事环境有机地球化学研究,尤其专注光化学对天然有机质的转化和降解途径研究。太阳光照射在湖泊、河流和海洋等水体,不仅提供能源给活的浮游生物用于创造初级生产力,还对水体中腐殖化的天然有机质持续进行改造。这些有机质光化学降解再矿化对温室气体如二氧化碳和甲烷等的全球通量贡献,是亟待调查研究的热点。陆地来源的有机质所具有的吸光性远远高于海洋中的有机质,主要是由于陆源物质从河流向海洋输送的过程中,进行了大量的光化学改造,转变成弱吸光或不吸光的有机质,甚至完全降解成无机物质。这其中有多少陆源有机质通过光转化成惰性的中间产物,最终保留在海水中甚至埋藏到海底沉积物,是一个困扰地球化学的长期难题。陈洪梅博士将致力于研究光化学过程在全球碳氮循环中扮演的角色,定性定量研究表层水有机质在阳光直接辐射下的光化学转化和降解,以及暗环境下由铁催化的芬顿反应对水体和土壤有机质的转化。

陈洪梅博士专长于应用高分辨质谱和高磁场核磁共振等分析手段在分子水平上解析天然有机质的来源、转化和去除路径,与美国欧道明大学、西北太平洋国家实验室、以及俄亥俄州立大学的仪器中心均建立良好合作关系,灵活操作各种不同磁场级别的傅里叶变换离子回旋共振超高分辨质谱仪,参与高分辨质谱在溶解有机质分析上的国际比对工作。在博士期间获得欧道明大学Dominion Scholar奖学金,博士毕业后的五年内多次申请到西北太平洋国家实验室环境分子实验室的大型仪器平台开放课题,以及美国橡树岭国家实验室的合作子课题。目前已在Analytical ChemistryEnvironmental Science & Technology等多个国际知名学术期刊发表论文近30篇,论文被引累计1200次,h-index 18,担任Geochimica et Cosmochimica Acta,Nature Communications等多个国际学术期刊审稿人,并多次受邀评审NSF基金申请。

如有兴趣了解陈洪梅博士的更多情况,欢迎访问其个人主页http://mel2.globedrugmart.com/faculty/HongmeiChen/,或联系chenhm@globedrugmart.com



Dr. Hongmei Chen – a young scientist studying photochemistry of natural organic matter

Dr. Hongmei Chen recently joined the College of Ocean and Earth Sciences at Xiamen University (XMU) as an Associate Professor, and became a member of the State Key Laboratory of Marine Environmental Science (MEL) in October 2020.

Dr. Chen received her PhD in Chemistry in 2014 at Old Dominion University (ODU), co-supervised by Professor Patrick G. Hatcher and Professor Kenneth Mopper. She conducted her postdoctoral study at the Oak Ridge National Laboratory in Professor Baohua Gu’s Environmental Research Group during 2015 and 2017. She worked as a Research Assistant Professor in the Department of Chemistry and Biochemistry at ODU from 2018 to 2020.

Dr. Hongmei Chen has been working in the field of Environmental Organic Geochemistry for over 15 years, with a special interest on the photochemical reaction pathways of Natural Organic Matter (NOM). Her group will continuously investigate the role of sunlight in the conversion of NOM to greenhouse gases, such as carbon dioxide and methane. Dr. Chen has been focused on the study of the fate of land-exported materials in the oceans. Her recent studies show that a significant portion of terrestrial DOM can sustain during the transport from land to Ocean, rather than being completely respired to gases. She closely examines the molecular rearrangement of NOM upon photoirradiation using the state-of-the-art analytical techniques, such as ultrahigh resolution FTICR-MS and NMR. Her group aims to provide transformative understanding of the pathways in which the large pool of terrestrial DOM becomes disseminated among the large carbon reservoirs, and to improve the general understanding of how carbon, nitrogen, and iron are cycled on different time scales. Dr. Chen has published almost 30 papers in peer-reviewed journals which have been cited for 1200+ times, with an h-index of 18 collectively.

For more information about Dr. Hongmei Chen, please contact her by email (chenhm@globedrugmart.com) or visit webpage: http://mel2.xmu.edu.cn/faculty/HongmeiChen/.