Highly efficient removal of neonicotinoid insecticides by thioether-based (multivariate) metal–organic frameworks

DOI: 10.1021/acsami.1c08833

Authors: Cristina Negro (Universidad de Valencia) , Héctor Martínez Pérez-Cejuela (Universitat de València) , Ernesto F. Simó-Alfonso (Universitat de València) , José Manuel Herrero-Martínez (Universitat de València) , Rosaria Bruno (Università della Calabria) , Donatella Armentano (Università della Calabria) , Jesus Ferrando-Soria (Universidad de Valencia) , Emilio Pardo (Universidad de Valencia)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Acs Applied Materials & Interfaces

State: Published (Approved)
Published: June 2021
Diamond Proposal Number(s): 22411 , 25759

Abstract: Circumventing the impact of agrochemicals on aquatic environments has become a necessity for health and ecological reasons. Herein, we report the use of a family of five eco-friendly water-stable isoreticular metal–organic frameworks (MOFs), prepared from amino acids, as adsorbents for the removal of neonicotinoid insecticides (thiamethoxam, clothianidin, imidacloprid, acetamiprid, and thiacloprid) from water. Among them, the three MOFs containing thioether-based residues show remarkable removal efficiency. In particular, the novel multivariate MOF {SrIICuII6[(S,S)-methox]1.5[(S,S)-Mecysmox]1.50(OH)2(H2O)}·36H2O (5), featuring narrow functional channels decorated with both −CH2SCH3 and −CH2CH2SCH3 thioalkyl chains—from l-methionine and l-methylcysteine amino acid-derived ligands, respectively—stands out and exhibits the higher removal efficiency, being capable to capture 100% of acetamiprid and thiacloprid in a single capture step under dynamic solid-phase extraction conditions—less than 30 s. Such unusual combination of outstanding efficiency, high stability in environmental conditions, and low-cost straightforward synthesis in 5 places this material among the most attractive adsorbents reported for the removal of this type of contaminants.

Journal Keywords: multivariate metal−organic frameworks; amino acids; water remediation; neonicotinoid insecticides; host−guest chemistry

Diamond Keywords: Insecticides

Subject Areas: Chemistry, Materials, Environment


Instruments: I19-Small Molecule Single Crystal Diffraction

Discipline Tags:

Agriculture & Fisheries Chemistry Desertification & Pollution Earth Sciences & Environment Life Sciences & Biotech Material Sciences Metal-Organic Frameworks Metallurgy Organometallic Chemistry

Technical Tags:

Diffraction Single Crystal X-ray Diffraction (SXRD)