Water-Driven Nanoarchitetonic Assembly of a Quinolone-Based Coordination Polymer for Efficient Dye Removal
Year: 2026
Type: article
Abstract: 4-Quinolones are a class of heterocycles traditionally known for their biological properties. More recently, those derivatives have gained attention as versatile ligands for the construction of metal-centered molecular materials, such as coordination polymers (CPs), opening new possibilities for environmental applications. In this study, a novel dicarboxylated organic compound, 1-ethyl-4-oxo-1,4-dihydroquinoline-3,6-dicarboxylic acid ( H 2 L ), was synthesized and employed to construct zinc-based materials. The synthetic parameters (temperature, time, modulator type, and modulator/ligand precursor ratio) were systematically evaluated, notably highlighting the replacement of the conventional solvothermal solvent (DMF) with a greener alternative (H 2 O) to synthesize the Zn-based materials. Under optimized conditions, two new materials were obtained, namely Material 1 (synthesized in DMF) and Material 2 (synthesized in H 2 O). Additionally, Material 2 - [Zn(L)(H 2 O)] n - was obtained as single crystals and structurally characterized via synchrotron X-ray diffraction. As for the application, Material 2 demonstrated an adsorption capacity of 24.6 mg g -1 for the removal of the toxic dye methylene blue (MB). Different adsorption essays revealed that the Langmuir isotherm and pseudo-second-order kinetic model best described the behavior of Material 2 . This material achieved 100% selectivity toward the cationic dye (MB) and demonstrated excellent reusability, with only approximately 10% loss in removal efficiency over three adsorption/desorption cycles. Post-adsorption characterization provided valuable insights into the underlying interaction mechanisms. Together, these results highlight the potential of the developed quinolone-based coordination polymer as an efficient material for environmental remediation applications and underscore the relevance of further exploring this emerging class of compounds. Graphical Abstract
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,190
Funders: National Science Foundation, Northwestern University, Universidade Federal do ABC, Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Universidade Federal Fluminense, Materials Research Science and Engineering Center, Harvard University, Division of Materials Research, Division of Electrical, Communications and Cyber Systems
Awards: G1158349551, G1169090945, G1207375514, NNCI: Soft Hybrid Nanotechnology Experimental (SHyNE) Resource, G1286168481, G13272907, Novel chemical catalytic and photocatalytic processes for the direct conversion of methane and CO2 to products, G1737817080, G1840770272, G1880957424, G2093409800, G2233802770, G228631196, G2311368543, G247565723, G267499113, G29316538, G3010471893, Metal-Organic Frameworks (MOFs) as catalysts for sustainable oxidation of hydrocarbons derived from petroleum (methane and other alkanes) and natural (terpenes), G3325778992, G3454132534, G3556385951, G3653699404, G3690646728, G3693050169, G4180835196, G4285583887, G4289334353, G4289625387, G4604943721, MRSEC: Center for Multifunctional Materials, G484342837, G4912152698, G4958141111, G5090288263, G5157461147, G5218300437, G5396269022, G5981366470, G6438247056, G6540817556, G7818385272, G8809891531, G933372841
OpenAlex ID: W7140090655