GOALI: Swellable Superhydrophobic Organosilica Materials as a Novel Catalyst Support for Water Purification Systems

GOALI：可膨胀超疏水有机硅材料作为水净化系统的新型催化剂支持

• 批准号: 1436729
• 负责人: Umit Ozkan
• 金额: $ 36.25万
• 依托单位: Ohio State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-07-01 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1436729&HistoricalAwards=false
• 关键词: GOALI; Swellable; Superhydrophobic; Organosilica; Materials

1436729 (Ozkan)This project is a collaboration between The Ohio State University and ABSMaterials, which is a company located in Wooster, Ohio. ABSMaterials, founded in 2009, specializes in the development of novel organosilica materials, and employs 28 people. The total sales the company had in 2013 was $2.1 million. A unique class of materials developed by ABS materials are swellable organosilicate frameworks. These materials, commercialized as Osorb® and manufactured on a ton/month scale, have the capability to swell to 3-4 times their original volume in the presence of organics. Another important characteristic are their high hydrophobicity. The primary application of these materials to date has been their use to clean out organic impurities in water by absorption. While this application has large commercialization potential in water purification, another potential application is their use as catalyst scaffolds that can be used in reactions where water and/or common solutes have a hindrance or deactivation effect on the catalytic rate. This potential application is what brought the Ozkan group at Ohio State Chemical Engineering and the scientists at ABSMaterials together. While the Ozkan group has over 30 years of experience in heterogeneous catalysis, ABS Materials have the know-how for manufacturing these materials on a large scale, exploring the markets for applications, and commercializing different processes that will be based on the unique characteristics of these materials.Intellectual MeritThe proposed work will investigate novel catalyst systems to transform water contaminants into environmentally acceptable compounds. Focus will be placed on hydrodechlorination of chlorinated hydrocarbons, such as trichloroethylene, and hydrogenation of aromatic hydrocarbons, such as benzene. Catalytic systems to be developed will make use of highly hydrophobic swellable organosilica materials as catalyst scaffolds. Swellable organosilica have unique properties that differentiate them from traditional catalyst supports, including high hydrophobicity and the ability to reversibly expand and contract upon absorption and desorption of organic liquids. The materials do not absorb water, but the porous media extract organic solutes from water with high affinity and capacity. Due to the novelty of swellable organosilica, their use as catalyst scaffolds has not been thoroughly explored. This research will study: (i) methods to incorporate metals into the porous architecture, (ii) the kinetics of hydrodechlorination and hydrogenation reactions by metal catalysts supported on SOMS; (iii) mass transfer limitations in swellable hydrophobic media, and (iv) deactivation characteristics of metal catalysts sequestered in a porous hydrophobic matrix. The work will combine expertise from the fields of material science, catalysis, kinetics and transport phenomena. Experiments will be conducted to provide the knowledge base needed for the commercial development of a water purification system designed to treat EPA-regulated organic contaminants in water.Broader ImpactDevelopment of catalytic systems to address water contamination issues have been previously studied with the path to commercialization hindered by the limited lifetime of catalyst beds due to poisoning. A key working hypothesis here is that catalyst poisoning by water solutes will be prevented by sequestering metal catalysts in a porous hydrophobic matrix. The GOALI partnership integrates the company's material science innovation with expertise from the academic participants to solve a commercially important problems in a multi-billion dollar industry. Treatment of waters contaminated by chlorinated hydrocarbons and aromatics, both known carcinogens, represents a major challenge in ensuring a safe drinking water supply for U.S. citizens. The findings of the project, which will combine the fundamental aspects of academic research with real-life applications driven by industry are likely to be translated to commercial processes as there exist market pulls for such remediation technologies. This catalysis-based technology is expected to lead to a much more cost efficient solution to a large water treatment industry. The project will also have an impact in enhancing the educational infrastructure and helping to develop the human resources. The PI has developed a course titled "Catalysis and Catalytic Processes". The industrial collaborators will be guest lecturers for the course, bringing their industrial expertise and experience directly to the classroom. In terms of the impact on the human resources development, the PI has well-established partnerships with two local high schools to provide research internship experiences to senior high school students prior to graduation.

1436729（Ozkan）该项目是俄亥俄州州立大学和ABSMaterials之间的合作，ABSMaterials是一家位于俄亥俄州伍斯特的公司。ABSMaterials成立于2009年，专门从事新型有机硅材料的开发，拥有28名员工。该公司2013年的总销售额为210万美元。由ABS材料开发的一类独特的材料是可溶胀的有机硅酸盐框架。这些材料以Osorb®商品化并以吨/月规模生产，在有机物存在下能够膨胀至其原始体积的3-4倍。另一个重要特征是它们的高疏水性。迄今为止，这些材料的主要应用是通过吸收来清除水中的有机杂质。虽然这种应用在水净化中具有很大的商业化潜力，但另一种潜在的应用是它们作为催化剂支架的用途，所述催化剂支架可用于其中水和/或常见溶质对催化速率具有阻碍或失活作用的反应中。这种潜在的应用是什么带来了奥兹坎集团在俄亥俄州化学工程和科学家在ABSMaterials在一起。Ozkan集团在多相催化方面拥有30多年的经验，而ABS Materials拥有大规模生产这些材料的专业知识，探索应用市场，并根据这些材料的独特特性将不同的工艺商业化。智力优势拟议的工作将研究新型催化剂系统，将水污染物转化为环境可接受的化合物。重点将放在三氯乙烯等氯化烃的加氢脱氯和苯等芳烃的加氢。待开发的催化系统将利用高度疏水的可溶胀有机硅材料作为催化剂支架。 可溶胀的有机二氧化硅具有使其区别于传统催化剂载体的独特性质，包括高疏水性和在吸收和解吸有机液体时可逆地膨胀和收缩的能力。该材料不吸水，但多孔介质以高亲和力和容量从水中提取有机溶质。由于可溶胀的有机二氧化硅的新奇，它们作为催化剂支架的用途尚未被彻底探索。这项研究将研究：（i）将金属结合到多孔结构中的方法，（ii）由SOMS上负载的金属催化剂进行的加氢脱氯和加氢反应的动力学，（iii）在可溶胀疏水介质中的传质限制，以及（iv）螯合在多孔疏水基质中的金属催化剂的失活特性。这项工作将结合联合收割机的专业知识，从材料科学，催化，动力学和运输现象的领域。将进行实验，以提供所需的知识基础的水净化系统的商业化发展，旨在处理EPA监管的有机污染物在water.Broader ImpactDevelopment的催化系统，以解决水污染问题的发展，以前已经研究了与路径的商业化受阻的催化剂床由于中毒的寿命有限。这里的一个关键工作假设是，通过将金属催化剂螯合在多孔疏水基质中来防止水溶质引起的催化剂中毒。GOALI合作伙伴关系将公司的材料科学创新与学术参与者的专业知识相结合，以解决数十亿美元行业中的重要商业问题。 处理被氯化烃和芳烃污染的沃茨，这两种已知的致癌物质，是确保美国公民安全饮用水供应的一个重大挑战。 该项目将联合收割机的基本方面的学术研究与实际生活中的应用相结合，由工业驱动，有可能转化为商业进程，因为市场对这种补救技术有吸引力。这种基于催化的技术有望为大型水处理行业提供更具成本效益的解决方案。该项目还将对加强教育基础设施和帮助开发人力资源产生影响。PI开发了一门名为“催化和催化过程”的课程。工业合作者将成为该课程的客座讲师，将他们的工业专业知识和经验直接带到课堂上。在对人力资源开发的影响方面，PI与当地两所高中建立了良好的伙伴关系，为高中生提供毕业前的研究实习经验。