Author ORCID Identifier
https://orcid.org/0000-0002-5881-8679
Date of Award
2025
Document Type
Thesis (Ph.D.)
Department or Program
Chemistry
First Advisor
Katherine A. Mirica
Abstract
Layered, conductive metal−organic frameworks (MOFs) are a class of materials with properties that make them ideal candidates for multifunctional applications, including sensing, adsorption, and catalysis. My thesis focuses on the development of triphenylene-based MOFs as multifunctional materials for environmental remediation, gas sensing, and proton conduction, while investigating their structural diversity and deposition on substrates.
Chapter 1 highlights the applications of triphenylene based MOFs.
Chapter 2 explores the use of layered conductive MOFs based on 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) and 2,3,6,7,10,11-hexaiminotriphenylene (HITP); M3(HITP)2 and M3(HHTP)2 (M = Nickel or Copper) for the adsorption and sensing of toxic oxoions, dichromate (Cr2O72−) and permanganate (MnO4−), in water. The study highlights the high adsorption capacities and fast kinetics of adsorption. The MOFs retain structural integrity post-adsorption and can be regenerated and reused. A layer-by-layer (LBL) deposition of Ni3(HITP)2 on textiles further enables the simultaneous detection and capture of oxoions, demonstrating the potential for scalable applications in environmental remediation.
Chapter 3 investigates the development of smart textiles by integrating triphenylene-based conductive MOFs onto cotton substrates using a layer-by-layer (LBL) deposition method. This approach allows precise control over MOF loading and electronic conductivity. Functionalized textiles incorporating Cobalt, Nickel, Copper, and Zinc-based MOFs exhibit significant sulfur dioxide (SO2) sensing and adsorption capabilities, highlighting their dual functionality for sensing and capture in healthcare and environmental protection.
Chapter 4 presents the discovery of two distinct structures of a Manganese-based layered conductive MOF incorporating HHTP. The first structure follows the traditional hexagonal pore geometry of triphenylene-based MOFs, while the second exhibits rectangular pores with water molecules incorporated through coordination and hydrogen bonding. This unique arrangement enables proton conduction within the framework, thereby expanding the scope of these materials for energy storage and transport applications.
Taken together, the chapters of my thesis provide understanding of the applications of layered conductive MOFs, including analyte-MOF interactions, robust methods for MOF growth on cotton textiles, and the exploration of novel MOF structures. These findings highlight the structural diversity and multifunctionality of triphenylene-based MOFs, laying the groundwork for advancing these materials for real-life applications.
Recommended Citation
Chandra, Priyanshu, "DESIGN AND SYNTHESIS OF CONDUCTIVE METAL–ORGANIC FRAMEWORKS FOR THE DETECTION AND UPTAKE OF TOXIC POLLUTANTS" (2025). Dartmouth College Ph.D Dissertations. 334.
https://digitalcommons.dartmouth.edu/dissertations/334
