Collaborative Research: NIRT: Surface Reactivity of Nanocrystalline Oxides and Oxyhydroxides: Implications for Processes in the Environment
合作研究:NIRT:纳米晶体氧化物和羟基氧化物的表面反应性:对环境过程的影响
基本信息
- 批准号:0123967
- 负责人:
- 金额:$ 78.21万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2001
- 资助国家:美国
- 起止时间:2001-08-15 至 2007-01-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
EAR-0123967EAR-123998EAR-0124036EAR-0124001Crystals with nanometer-scale dimensions formed by chemical weathering and biomineralization reactions are found in rivers, lakes, oceans, soils, sediments, and atmospheric dust. Because of their novel size-dependent properties, nanoparticles may play disprotionately large roles in environmental processes. However, the variation of reactivity of geologically important nanomaterials with particle size has received little attention. The tendency of ions to adsorb onto nanocrystalline metal oxide surfaces is predicted to be size-dependent. Adsorption will be studied experimentally over the temperature range of 0 - 150 degrees C in gases and environmentally-relevant aqueous solutions. Models will be developed to quantitatively explain differences between results for nanoparticles and those obtained on macroscopic equivalents. If nanocrystals grow via oriented aggregations, as has been shown previously, adsorbed ions (e.g. phosphate, arsenate, and zinc adsorbed from solution onto iron oxyhydroxide surfaces), may be incorporated into point defects. This may represent an important environmental ion sequestration pathway, with direct relevance to the long-term fate of nutrients and contaminants. Coupling of aggregation and adsorption under controlled conditions may also provide a new approach for creation of synthetic materials with technologically interesting properties. Ion sequestration during nanocystal growth will be tested experimentally and explored via molecular modeling and simulation. Calorimetric studies designed to measure surface and adsorption energies will provide date to be used in models that will explore size-dependent reactivity. This proposal was submitted in response to the solicitation "Nanoscale Science and Engineering" (NSF 00-119).
在河流、湖泊、海洋、土壤、沉积物和大气粉尘中发现了由化学风化和生物矿化反应形成的纳米尺度的EAR-0123967EAR-123998EAR-0124036EAR-0124001Crystals。由于其新颖的大小依赖性质,纳米颗粒可能在环境过程中扮演非常重要的角色。然而,具有重要地质意义的纳米材料的反应性随颗粒大小的变化却很少受到关注。离子吸附在纳米晶金属氧化物表面的趋势被预测为与尺寸有关。将在0-150摄氏度的温度范围内对气体和与环境相关的水溶液的吸附进行实验研究。将开发模型来定量解释纳米颗粒和宏观等价物结果之间的差异。如前所述,如果纳米晶体通过定向聚集生长,被吸附的离子(例如,从溶液中吸附到氢氧化铁表面的磷酸盐、砷酸盐和锌)可能会被结合到点缺陷中。这可能代表了一条重要的环境离子隔离途径,与营养物质和污染物的长期命运直接相关。在可控条件下的聚集和吸附的耦合也可能为创造具有技术特性的合成材料提供一种新的方法。将对纳米晶体生长过程中的离子隔离进行实验测试,并通过分子建模和模拟进行探索。旨在测量表面能和吸附能的量热研究将为探索依赖于尺寸的反应性的模型提供数据。这项提案是应“纳米科学与工程”(NSF 00-119)的征集而提交的。
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)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Jillian Banfield其他文献
Submicron-scale isotopic variations within biogenic ZnS record the mechanism and kinetics of extracellular metal-sulfide biomineralization
- DOI:
10.1016/j.gca.2006.06.861 - 发表时间:
2006-08-01 - 期刊:
- 影响因子:
- 作者:
John Moreau;Peter Weber;Michael Martin;Richard Webb;Benjamin Gilbert;Ian Hutcheon;Jillian Banfield - 通讯作者:
Jillian Banfield
Unravelling ancient microbial history with community proteogenomics and lipid geochemistry
利用群落蛋白质组学和脂质地球化学揭示古老的微生物历史
- DOI:
10.1038/nrmicro2167 - 发表时间:
2009-08-01 - 期刊:
- 影响因子:103.300
- 作者:
Jochen J. Brocks;Jillian Banfield - 通讯作者:
Jillian Banfield
Correction to: A survey assessing the need for spinal chloroprocaine to provide subarachnoid neuraxial anesthesia for short-duration surgeries in Canada
- DOI:
10.1007/s12630-021-02025-y - 发表时间:
2021-05-13 - 期刊:
- 影响因子:3.300
- 作者:
Jennifer Szerb;Syed-Ali-Akbar Abbass;Jillian Banfield;Vishal Uppal - 通讯作者:
Vishal Uppal
A survey assessing the need for spinal chloroprocaine to provide subarachnoid neuraxial anesthesia for short-duration surgeries in Canada
- DOI:
10.1007/s12630-021-01980-w - 发表时间:
2021-04-12 - 期刊:
- 影响因子:3.300
- 作者:
Jennifer Szerb;Syed-Ali-Akbar Abbass;Jillian Banfield;Vishal Uppal - 通讯作者:
Vishal Uppal
Jillian Banfield的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Jillian Banfield', 18)}}的其他基金
Biotechnology of thiocyanate degradation: an exploration using meta-omics tools to understand the microbial communities responsible for remediation of mining wastewater
硫氰酸盐降解生物技术:利用元组学工具了解负责采矿废水修复的微生物群落的探索
- 批准号:
1349278 - 财政年份:2015
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
Materials World Network: Particle-Mediated Control Over Crystallization: From the Pre-Nucleation Stage to the Final Crystal
材料世界网络:粒子介导的结晶控制:从预成核阶段到最终晶体
- 批准号:
1312697 - 财政年份:2013
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
The mechanism of fumarate photoreduction on zinc sulfide nanoparticles
硫化锌纳米颗粒富马酸盐光还原机理
- 批准号:
1324791 - 财政年份:2013
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
Comprehensive Genomic Analysis of Salt-impacted Microbial Communities in their Environmental Context
环境背景下受盐影响的微生物群落的综合基因组分析
- 批准号:
0626526 - 财政年份:2006
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
BE/GEN-EN: Analysis of Factors Determining the Ecological Function and Resilience of Microbial Communities
BE/GEN-EN:决定微生物群落生态功能和恢复力的因素分析
- 批准号:
0221768 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
Microbial Observatories: Collaborative Research: A Cold Microbial Observatory: Collaborative Research in an Alaskan Boreal Forest Soil
微生物观测站:合作研究:冷微生物观测站:阿拉斯加北方森林土壤的合作研究
- 批准号:
0132115 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
Biogeochemical Weathering Controls on Soil Formation and Landscape Development
生物地球化学风化对土壤形成和景观发展的控制
- 批准号:
0106054 - 财政年份:2001
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
Crystal Growth and Phase Transformation Kinetics in Nanocrystalline Materials
纳米晶材料中的晶体生长和相变动力学
- 批准号:
9814333 - 财政年份:1999
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
Biogeochemical Weathering of Layer Silicates
层状硅酸盐的生物地球化学风化
- 批准号:
9706382 - 财政年份:1997
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
相似海外基金
NIRT: Collaborative Research: Spin Transport and Dynamics in Nanoscale Hybrid-Structures
NIRT:合作研究:纳米级混合结构中的自旋输运和动力学
- 批准号:
0742225 - 财政年份:2006
- 资助金额:
$ 78.21万 - 项目类别:
Continuing Grant
Collaborative Research: NIRT: Surface Reactivity of Nanocrystalline Oxides and Oxyhydroxides: Implications for Processes in the Environment
合作研究:NIRT:纳米晶体氧化物和羟基氧化物的表面反应性:对环境过程的影响
- 批准号:
0308539 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Continuing Grant
Collaborative Research: NIRT: The Role of Nano-Scale Colloids in Particle Aggregation and Trace Metal Scavenging in Aquatic Systems
合作研究:NIRT:纳米级胶体在水生系统中颗粒聚集和痕量金属清除中的作用
- 批准号:
0237624 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
NIRT - Collaborative Research: Experimental and Computational Investigations of Fluid Interactions/Transport in Nanodomains and Around Nanoparticles
NIRT - 合作研究:纳米域和纳米颗粒周围流体相互作用/传输的实验和计算研究
- 批准号:
0210400 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
Collaborative Research: NIRT: The Role of Nanoscale Colloids in Particle Aggregation and Trace Metal Scavenging in Aquatic Systems
合作研究:NIRT:纳米级胶体在水生系统中颗粒聚集和痕量金属清除中的作用
- 批准号:
0237905 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
NIRT: Collaborative Research: Spin Transport and Dynamics in Nanoscale Hybrid-Structures
NIRT:合作研究:纳米级混合结构中的自旋输运和动力学
- 批准号:
0334231 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Continuing Grant
Collaborative Research: NIRT: The Role of Nano-scale Colloids in Particle Aggregation and Trace Metal Scavenging in Aquatic Systems
合作研究:NIRT:纳米级胶体在水生系统中颗粒聚集和痕量金属清除中的作用
- 批准号:
0237479 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
Collaborative Research: NIRT: The Role of Nano-Scale Colloids in Particle Aggregation and Trace Metal Scavenging in Aquatic Systems
合作研究:NIRT:纳米级胶体在水生系统中颗粒聚集和痕量金属清除中的作用
- 批准号:
0210865 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
NIRT - Collaborative Research: Experimental and Computational Investigations of Fluid Interactions/Transport in Nanodomains and Around Nanoparticles
NIRT - 合作研究:纳米域和纳米颗粒周围流体相互作用/传输的实验和计算研究
- 批准号:
0210258 - 财政年份:2002
- 资助金额:
$ 78.21万 - 项目类别:
Standard Grant
NIRT: Collaborative Research: Spin Transport and Dynamics in Nanoscale Hybrid-Structures
NIRT:合作研究:纳米级混合结构中的自旋输运和动力学
- 批准号:
0103302 - 财政年份:2001
- 资助金额:
$ 78.21万 - 项目类别:
Continuing Grant