Collaborative Research: Quantifying the Reactive Surface Area of Enviromental Solids
合作研究:量化环境固体的反应表面积
基本信息
- 批准号:1213407
- 负责人:
- 金额:$ 30万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-09-15 至 2016-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The Environmental Chemical Sciences Program in the Chemistry Division at the National Science Foundation supports the research of Professors Peggy A. O'Day from the University of California- Merced, Karl T. Mueller from Pennsylvania State University and Pacific Northwest National Laboratory, and James D. Kubicki of Pennsylvania State University who will perform collaborative research that will investigate reactive surfaces of environmental solids and their dynamic nature. Competitive adsorption, kinetics, and aging in aqueous systems of divalent cations sorbed to oxide and clay mineral surfaces will be examined through the development of novel, site-specific probe molecule(s) using solid-state nuclear magnetic resonance (NMR) spectroscopy in conjunction with complementary spectroscopic/microscopic characterizations and computational chemistry. This research will address fundamental, long-standing questions about active, molecular binding sites at surfaces of environmental solids and their dynamic nature.Accurate scaling of mineral surface reactivity is broadly applicable and essential to a number of important applications of societal relevance. Potential broader impacts include, for example, assessing risks associated with environmental contaminants such as surface and subsurface migration or natural attenuation of metal, radionuclide, and organic contaminants; quantifying processes such as nutrient input of P, N, and Fe sorbed on mineral particles into lakes or the oceans; and estimating the extent of CO2 reaction and sequestration by minerals in subsurface injection. This research program will train graduate students and postdoctoral scholars in interdisciplinary chemical environmental sciences involving multiple and iterative spectroscopic characterization methods and quantitative computational approaches.
美国国家科学基金会化学部的环境化学科学项目支持了佩吉·A。来自加州大学默塞德分校的O 'Day,Karl T.来自宾夕法尼亚州立大学和太平洋西北国家实验室的Mueller和James D.他将进行合作研究,调查环境固体的反应表面及其动态性质。竞争性吸附,动力学和老化的二价阳离子吸附到氧化物和粘土矿物表面的水溶液系统将通过开发新的,特定于站点的探针分子(S)使用固态核磁共振(NMR)光谱结合互补的光谱/微观表征和计算化学检查。这项研究将解决基本的,长期存在的问题,活性,分子结合位点在表面的环境solidsand their dynamic natural.Accurate的矿物表面反应性的缩放是广泛适用的,必不可少的一些重要的社会相关性的应用。潜在的更广泛的影响包括,例如,评估与环境污染物有关的风险,如金属、放射性核素和有机污染物的表面和地下迁移或自然衰减;量化过程,如吸附在矿物颗粒上的P、N和Fe的营养物输入湖泊或海洋;估计地下注入中矿物的CO2反应和螯合程度。该研究计划将培养跨学科化学环境科学的研究生和博士后学者,涉及多种和迭代光谱表征方法和定量计算方法。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Peggy O'Day其他文献
Peggy O'Day的其他文献
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{{ truncateString('Peggy O'Day', 18)}}的其他基金
Acquisition of a Powder X-ray Diffractometer for Environmental and Materials Research at UC Merced
加州大学默塞德分校购买粉末 X 射线衍射仪用于环境和材料研究
- 批准号:
0619398 - 财政年份:2006
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
Acquisition of a Scanning Electron Microscope for Environmental, Biological, and Materials Research and Education at UC Merced
购买扫描电子显微镜用于加州大学默塞德分校的环境、生物和材料研究与教育
- 批准号:
0420982 - 财政年份:2004
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
Spatial and Temporal Changes in Arsenic, Iron, and Sulfur Speciation in a Shallow Aquifer
浅层含水层中砷、铁和硫形态的时空变化
- 批准号:
0409203 - 财政年份:2004
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
Collaborative Research: Biogeochemical Controls on Arsenic Remobilization From Sediments
合作研究:沉积物中砷再利用的生物地球化学控制
- 批准号:
0442016 - 财政年份:2004
- 资助金额:
$ 30万 - 项目类别:
Continuing Grant
Collaborative Research: Biogeochemical Controls on Arsenic Remobilization From Sediments
合作研究:沉积物中砷再利用的生物地球化学控制
- 批准号:
0201943 - 财政年份:2002
- 资助金额:
$ 30万 - 项目类别:
Continuing Grant
NER: Molecular-To-Microscale Investigation Of Microbial Habitats: Exploratory Studies Using Molecular Probes and Microcomputed Tomography and Fluorescence
NER:微生物栖息地的分子到微观研究:使用分子探针、微计算机断层扫描和荧光的探索性研究
- 批准号:
0210819 - 财政年份:2002
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
Molecular Characterization and Reaction Mechanisms of Arsenic Speciation in Stream Hyporheic Zone Sediments
溪流潜流带沉积物中砷形态的分子表征及反应机制
- 批准号:
0073984 - 财政年份:2000
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
CAREER: Metal Partitioning and Surface Reactions in Natural and Model Systems: Research and Education
职业:自然和模型系统中的金属分配和表面反应:研究和教育
- 批准号:
9629276 - 财政年份:1996
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
Earth Sciences Postdoctoral Research Fellowship Award
地球科学博士后研究奖学金
- 批准号:
9208859 - 财政年份:1992
- 资助金额:
$ 30万 - 项目类别:
Fellowship Award
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