Metal Organic Framework (MOF) Cu3(BTC)2 has a promising ability for the capture and storage of carbon dioxide to reduce the emissions into the atmosphere. However, the most popular synthesis method for Cu3(BTC)2, known as solvothermal, produces a large amount of waste as well as consumes a significant amount of energy. In recent years, much effort has been taken to find greener methods that could reduce the amount of waste produced and energy consumed, and at the same time, provide the same product as the solvothermal method does. In this research, two synthesis methods are employed to incorporate a few of the 12 principals of green chemistry into the production of these frameworks. One of the methods used to produce Cu3(BTC) 2 was mechanical grinding. This method used almost no solvent, which, in return, assisted in reducing waste. It only needed grinding for as little as 30 minutes, which cut energy consumption. The second synthesis method that was studied in the current research was using a microwave reactor. This method required to raise the temperature higher than the solvothermal method, but ran for much less time. The products of these two methods were characterized using infrared spectroscopy in the current stage of research and a few key green metrics, such as percent yield, E-factor and effective mass yield. It was found that the yields of the two methods are very similar at about 45%, however, the microwave method had larger amount of waste produced, giving it lower green metrics than the grinding. Nonetheless, both produced much less waste than the solvothermal method. Future work for this project will consist of further optimizing the synthesis and looking more in-depth of the properties of the synthesized Cu3(BTC) 2 for carbon dioxide storage application.

Greener synthesis of metal organic framework Cu3(BTC)2

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

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