Graduate Student in Chemical and Biomolecular Engineering
B. S. Chemical Engineering, University of Maryland, Baltimore County (UMBC), 2018
Title: “Colorimetric Gas Sensor Based on Metal-Organic Frameworks”
BSAC Identification: BPN13
Abstract: This project aims to develop colorimetric sensors for gas detection. The principle of a colorimetric sensor is based on a change of color in a gas sensitive layer when it comes into contact with the target gas. Colorimetric sensors can be low cost and passive. In general, the working principle of colorimetric sensors allows it to be used in varied conditions and be capable of exhibiting visible color changes upon interacting with the target gas, which is convenient and friendly to users.
However, the practical usage of the commercialized colorimetric sensor is limited to a relatively high partial pressure (P above 1%), inhibiting the applications in environments with lower gas variations. Here, we aim to study the potential of using metal- organic frameworks (MOFs) with cyclodextrin (CD) linker to address the issue. CD is mass-produced enzymatically from starch and does not possess any adverse biological and environmental effects. Besides, CD MOF exhibits excellent porosity and is able to chemically interact with certain gases (e.g. CO2) under extremely low partial pressure range (P below 0.1%).
This project seeks to apply CD MOF as the sorption material for colorimetric sensing and to further study the working mechanism behind it.
- Gao, X.; Davey, A.K.; Carraro, C.; Maboudian, R. “Colorimetric Gas Sensor based on Metal-Organic Frameworks.” Poster presentation delivered at the Spring 2019 Berkeley Sensor and Actuator Center (BSAC) Industrial Advisory Board (IAB) Meeting in Berkeley, CA. March 2019.
- National Science Foundation Graduate Research Fellow (NSF GRFP)
- Ford Foundation Predoctoral Fellowship (honorable mention)
- University of California, Berkeley Chancellor Fellow
- GEM National Consortium Associate Fellow
- Meyerhoff Scholar (University of Maryland, Baltimore County)