Exploring the physical factors and chemical interactions involved in the adsorption of synthetic aromatic compounds by carbonaceous adsorbents

探索碳质吸附剂吸附合成芳香族化合物所涉及的物理因素和化学相互作用

• 批准号: 0730694
• 负责人: Tanju Karanfil
• 金额: $ 32.5万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0730694&HistoricalAwards=false
• 关键词: Exploring; physical; factors; chemical; interactions

Tanju KaranfilClemson UniversityProposal 0730694Exploring the physical factors and chemical interactions involved inThe adsorption of synthetic aromatic compounds by carbonaceous adsorbentThe industrial and technological expansion of our society over the past several decades resulted in improved standards of living. However, production of large volumes of various synthetic organic chemicals (SOCs) for different industrial and domestic uses has resulted in serious environmental problems. Among a number of SOCs of concern, aromatic hydrocarbons constitute an important class. The fate, transport and treatment of aromatic SOCs largely depend on their adsorption by natural (e.g., black carbon) or engineered (e.g., activated carbons, carbon fibers and carbon nanotubes) carbonaceous adsorbents. Therefore, a fundamental understanding of the important factors controlling the adsorption of aromatic SOCs by carbonaceous adsorbents is critical to predict their fate and transport in the environment, and to provide a fundamental basis for developing and utilizing tailored adsorbents to effectively remove them from aqueous and gas waste streams. The main objective of this research is to perform a systematic investigation to explore the physical factors and chemical interactions involved in the adsorption of aromatic SOCs by various carbonaceous adsorbents. The research will specifically investigate: (1) the physical factors affecting the adsorption of aromatic SOCs (e.g., the roles of molecular sizes and configurations of adsorbates as well as the topography of the graphene layers and the pore size distributions of the carbonaceous adsorbents), (2) the chemical interactions involved in the adsorption of aromatic hydrocarbons and their contributions in different adsorbate-adsorbent systems (e.g., the roles of dispersion, electron donor-acceptor and, n-electron donor-acceptor interactions, and the effects of introducing oxygen-containing surface groups to the electron density of adsorbent carbon basal plane), and (3) the interactions of water molecules with different adsorbent surfaces, and its influence on aromatic SOC adsorption.

Tanju Karanfilclemson University -Proposal 0730694探索了碳质吸附剂吸附合成芳香族化合物所涉及的物理因素和化学相互作用，过去几十年来我们社会的工业和技术扩展导致了改善的生活水平。但是，用于不同工业和家庭用途的各种合成有机化学品（SOC）的大量生产导致了严重的环境问题。在许多关注的社会中，芳香烃构成了重要的类。芳香SOC的命运，运输和处理在很大程度上取决于它们通过天然（例如黑碳）或工程（例如活性碳，碳纤维和碳纳米管）的碳质吸附剂的吸附。因此，对控制碳质吸附剂吸附的重要因素的基本理解对于预测其在环境中的命运和运输至关重要，并为开发和利用量身定制的崇拜者提供了基本基础，以有效地将其从水溶液和瓦斯废气流中删除。这项研究的主要目的是进行系统研究，以探索各种碳质吸附剂吸附芳香族SOC所涉及的物理因素和化学相互作用。该研究将特别研究：（1）影响芳香社会吸附的物理因素（例如，分子大小和吸附物的构型以及石墨烯层的地形的作用以及碳质适应体的孔径分布的地形），（2）（2）（2）（2）相互作用涉及的相互作用涉及的相互作用涉及AROMANS和AROMANS的相互作用。 Adsorbate-Adsorbent系统（例如，分散，电子供体 - 受体和N-电子供应器相互作用的作用，以及将含氧表面基团引入含氧表面群的影响对吸附碳基础平面的电子密度）以及（3）对水的相互作用，以及（3）其对水的相互作用以及（3）吸附。