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Fall 2017
Nonlinear optical techniques are widely used for surface analysis, as they are surface specific and can be used to probe interfaces of insulators such as silica. Silica is commonly found in nature such as reservoirs of natural water and oils. Nonetheless, it is not clear how silica interacts with...
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Studying the Molecular Structure of Aqueous/Mineral Oxide Interfaces by Vibrational Sum Frequency Generation Spectroscopy and Zeta Potential Measurements
DownloadFall 2021
Water/mineral oxide interfaces are ubiquitous in various atmospheric, geological, biological, and industrial systems. Hence, studying such abundant interfaces is essential for understanding the macroscopic interfacial reactions, such as adsorption/desorption, dissolution, flocculation,...
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Fall 2016
The objective of this research was to develop new molecular sieve materials and to examine their applications in membrane as well as adsorptive gas separation processes. Membrane-based processes have the potential to overcome the limitations of conventional gas separation techniques such as...
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Synthesis and Characterization of Electrospun Activated Carbon Nanofibers Reinforced with Cellulose Nanocrystals for Adsorption Applications
DownloadFall 2019
Cellulose nanocrystals (CNCs) are emerging nanomaterials with desirable characteristics including biodegradability, renewable sources, high aspect ratios, high surface area, and high strength. Polyacrylonitrile (PAN) is the most commonly used polymer precursor for electrospinning due to its high...
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Tailoring Molecular Sievesâ Dielectric and Electric Properties for Efficient Microwave and Resistive Heating Regeneration
DownloadSpring 2018
Adsorption onto molecular sieve adsorbents is a well-developed technique in the industry for gaseous pollutants emission control. Loaded adsorbents must then be regenerated for reuse in further adsorption cycles. Microwave and resistive heating have been introduced as potential alternatives to...
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The Behaviour and Interactions of the Silica/Water Interface Studied through Nonlinear Optics
DownloadFall 2020
The chemistry of silica in contact with water is rich and diverse. These two substances are among the most ubiquitous on the surface of the Earth. Yet, despite many investigations into the interactions between silica and water, there is still more to discover. In aqueous solution, the silica...
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The Influence of Specific Ions and System Architecture on the Recognition and Reactivity of Two Charged Materials: DNA-Modified Gold Nanoparticle Aggregates and Planar Silica
DownloadFall 2014
DNA functionalized gold nanoparticles (GNP–DNA) offer simple colorimetric nucleic acid sensing with high selectivity and sensitivity. Consequently, they are promising in genetic profiling, disease diagnostics, and forensic applications. In the presence of a target nucleic acid, GNP–DNA forms...
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Fall 2013
In this research two-dimensional mathematical models were developed to study adsorption of single component volatile organic compounds (VOCs) and competitive adsorption of n-component mixtures of VOCs from dilute gas streams in a fixed-bed adsorber. The models consist of the macroscopic mass,...
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Spring 2016
Vehicle painting booths are among the major sources of volatile organic compounds (VOCs) emissions in the auto manufacturing sector. A challenge with controlling VOCs by adsorption onto activated carbon (AC) is the occurrence of strongly, or even permanently, adsorbed species. Irreversible...