Reduction of Contaminant Oxyanions in Water. Critical Mechanistic Studies of Heterogeneous Bimetallic Catalysts.

无机化学、生物无机化学和金属有机化学项目的这一奖项支持伊利诺伊大学约翰·R·沙普利教授的研究，他深入研究了最近发现的一种多相催化剂体系的化学，该体系促进了水中高氯酸盐离子的氢气有效还原，这是第一个有可能用于修复受高氯酸盐污染的饮用水的非生物催化剂的例子。该方法包括制备具有双功能特性的催化剂，以解决目标明确、困难的反应。对高氯酸盐体系的进一步研究旨在提供分子相互作用水平的细节，以阐明特定反应步骤的操作和重要性。这些结果将指导未来的合成工作，以优化改进的高氯酸盐还原催化剂的催化反应中心，并将揭示一种基本的反应类型，这是催化还原水中其他含氧阴离子污染物的关键成分。本研究旨在开发一套实用的饮用水高氯酸盐修复系统。这项工作的成果还将通过对参与这项研究的学生的教育和培训以及伊利诺伊大学水科学和技术中心的外展努力，对基础设施发展产生影响。

This award in the Inorganic, Bioinorganic and Organometallic Chemistry program supports research by Professor John R. Shapley at the University of Illinois to delve into the chemistry of a recently discovered heterogeneous catalyst system that promotes efficient reduction by hydrogen of the perchlorate ion in water, which is the first example of a non-biological catalyst potentially capable of being used to remediate perchlorate-contaminated drinking water. The approach involves the preparation of catalysts with bifunctional properties tailored to address a targeted, difficult reaction. Further studies on the perchlorate system are intended to provide details at the level of molecular interactions that will elucidate the operation and importance of specific reaction steps. These results will guide future synthesis efforts to optimize the catalytic reaction centers for improved perchlorate reduction catalysts and will shed light on a fundamental reaction type that is a key component of the catalytic reduction of other oxyanion contaminants in water. This research is to develop a practical system for perchlorate remediation of drinking water. The outcomes from the work will also have impact in infrastructure development through the education and training of the students involved in this research and through the outreach efforts of the University of Illinois Water Science and Technology center.