UROP Proceedings 2020-21

School of Engineering Department of Chemical and Biological Engineering 82 Designing of the Chemical Process for Polyethylene Furanoate-Based Materials Supervisor: HU Xijun / CBE Student: YANG Jianbo / CENG Course: UROP1100, Spring In today’s logistics and construction industry, wooden materials are in huge demand. There is a significant number of wood waste generated from those used pallets and boxes, which has occupied up to 10% of landfill capacity in Hong Kong. To reduce the waste of materials, these recyclable wood wastes need certain chemical methods which can be transform them into other useful organic substances or products. At the same time, a potential opportunity to replace petroleum-based materials lies ahead of wood materials since they are abundant around the world and have a high-strength hierarchical structure. Thus, the project aims to synthesize a transparent wood material and see if we can functionalize it by chemical modifications. Designing of the Chemical Process for Polyethylene Furanoate-Based Materials Supervisor: HU Xijun / CBE Student: YANG Jianbo / CENG Course: UROP2100, Summer A significant number of wood waste occupying up to 10% of landfill capacity in Hong Kong is generated through the dispose of wood pallets and furniture. To increase the utilization rate of the material and ease the pressure on landfill space, an applicable chemical method to transform wood waste into useful organic substrates or products is expected. Wood is a kind of natural macromolecular material with a complex hierarchical structure. It is composed of cellulose, hemicellulose, and lignin. These components can be extracted through chemical methods and used in different fields after different modifications. The rest of the paper will discuss the experiments of these components and their potential uses. Synthesized Porous Materials For Water Purification Supervisor: KIM Yoonseob / CBE Student: LAI Chit Him / CEEV Course: UROP1100, Fall Metal-Organic Frameworks (MOF) have been an emerging technology in various industries. Its cage-like, hollow, and highly porous structure gives MOF extremely large surface area, tunability and flexibility. These features enable MOF to have a wide application such as water splitting, gas separation and electrochemical energy storage. Different combinations of MOFs are investigated to maintain its stable structure in different environments and usage. In this project, the removal of metal ions in water will be focused by testing the kinetics and capacity of Zr4+ based MOFs, which is highly stable in water. It is shown that the ratio of nodes and ligands does not affect the capacity whereas OH group shows a weaker removal than thiol group due to its weaker electronegativity.

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