Structure-Property Studies of Novel Multifunctionally-Doped Core-Shell-Shell Nanomaterials for Improving Efficiency and Stability in Decontamination of Environmental Pollutants

新型多功能掺杂核-壳-壳纳米材料的结构-性能研究，用于提高环境污染物净化效率和稳定性

• 批准号: 1134289
• 负责人: Tewodros Asefa
• 金额: $ 32.5万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1134289&HistoricalAwards=false
• 关键词: Structure; Property; Studies; Novel; Multifunctionally

1134289Asefa This NSF award by the Environmental Health and Safety of Nanotechnology program supports work by Professor Tewodros Asefa to develop and investigate new classes of TiO2- and ZnO-based core-shell-shell nanoparticles (particles with one ten-thousandth the diameter of a human hair in size) capable of efficiently photo-decomposing or converting in the presence of sunlight common organic pollutants in the environment and in waste water into harmless or even useful substances such as CO2 and H2O. The successful accomplishment of the proposed work will result in not only robust materials useful for environmental decontamination but also easily recoverable and recyclable materials for multiple uses. Such materials will be useful for recycling waste water at a time of shortages of clean water at various locations in the U.S. and around the world. The research findings should also inform future research directions in synthetic approaches to novel multifunctionally-doped efficient nanomaterials for efficient photodegradation of organic pollutants in waste water. The project?s societal benefits include advancement of systematic, less costly synthetic methods to create materials capable of cleaning environmentally prevalent pollutants from waste water with the direct use of solar energy. The project will also allow the training of a number of post-doctoral researchers and graduate and undergraduate students who will be involved in the research project in the PI's lab. These students, including those from groups underrepresented in sciences and engineering fields, will be trained in a variety of synthetic methods involving nanomaterials synthesis, their characterization, photocatalysis, and scientific/engineering approaches utilized in environmental remediation. Furthermore, the PI will use results from the proposed work in his undergraduate and graduate course offerings in nanoscience, materials chemistry and nanotechnology at Rutgers, The State University of New Jersey. This project will also enable the PI to continue to involve high school senior students in research through Rutgers' Governor's School program during the summer semester. In addition, the PI will use the results of the research project in presentations to teach the potential implications of nanoscience and nanotechnology for general audiences attending Science Fairs, as well as in Discovery Day activities at Rutgers. The PI will further use these opportunities to draw students' interest into science, technology, engineering, and mathematics (STEM) fields and to change students' (and parents') perceptions about science and engineering disciplines.

1134289Asefa 这项由纳米技术环境健康与安全项目颁发的 NSF 奖项支持 Tewodros Asefa 教授开发和研究新型 TiO2 和 ZnO 基核-壳-壳纳米颗粒（直径为人类直径十分之一的颗粒）的工作头发丝大小）能够在阳光下有效地光分解或将环境和废水中常见的有机污染物转化为无害甚至有用的物质，例如二氧化碳和水。拟议工作的成功完成不仅将产生可用于环境净化的坚固材料，而且还将产生易于回收和循环利用的多种用途材料。在美国和世界各地缺乏清洁水的情况下，此类材料将可用于回收废水。研究结果还应为新型多功能掺杂高效纳米材料的合成方法的未来研究方向提供信息，以有效光降解废水中的有机污染物。该项目的社会效益包括先进的系统化、成本较低的合成方法，以制造能够直接利用太阳能清除废水中普遍存在的环境污染物的材料。该项目还将培训一批博士后研究人员以及研究生和本科生，他们将参与 PI 实验室的研究项目。这些学生，包括来自科学和工程领域代表性不足的群体的学生，将接受各种合成方法的培训，包括纳米材料的合成、表征、光催化以及环境修复中使用的科学/工程方法。此外，PI 将在新泽西州立罗格斯大学的纳米科学、材料化学和纳米技术本科生和研究生课程中使用拟议工作的结果。该项目还将使 PI 能够在夏季学期继续通过罗格斯州长学校项目让高中生参与研究。此外，PI 将在演示中使用该研究项目的结果，向参加科学博览会以及罗格斯大学发现日活动的普通观众教授纳米科学和纳米技术的潜在影响。 PI 将进一步利用这些机会吸引学生对科学、技术、工程和数学 (STEM) 领域的兴趣，并改变学生（和家长）对科学和工程学科的看法。