Superfast Capture of Iodine from Air, Water, and Organic Solvent by Potential Dithiocarbamate-Based Organic Polymer

Abstract

Organic polymers are widely explored due to their high stability, scalability, and more facile modification properties. We developed cost-effective dithiocarbamate-based organic polymers synthesized using diamides, carbon disulfide, and diamines to apply for environmental remediation. The sequestration of radioiodine is a serious concern to tackle when dealing with nuclear power for energy requirements. However, many of the current sorbents have the problem of slower adsorption for removing iodine. In this report, we discuss the utilization of an electron-rich dithiocarbamate-based organic polymer for the removal of iodine in a very short time and with high uptake. Our material showed 2.8 g/g uptake of vapor iodine in 1 h, 915.19 mg/g uptake of iodine from cyclohexane within 5 s, 93% removal of saturated iodine from water in 1 min, and 1250 mg/g uptake of triiodide ions from water within 30 s. To the best of our knowledge, the iodine capture was faster than previously observed for any existing material. The material was fully recyclable when applied for up to four cycles. Hence, this dithiocarbamate-based polymer can be a promising system for the fast removal of various forms of iodine and, thus, enhance environmental security.

A Novel Class of Functionally Tuneable Star-Shaped Molecules for Interaction with Multiple Proteins

“…Molecular docking studies were carried out using Auto Dock Vina [29] and Perl script for integration executables. The protein structure was collected from the protein bank for BSA (4F5V, chain A), HSA (1BM0, chain A), trypsin (1TRN, chain A), hemoglobin (4 HHB, chain A) and ribonuclease A (2G8Q, chain A) http://www.rcsb.org accessed on 12 May 2022.…”

“…Dithiocarbamates are a prominent class of compounds that play crucial roles in various fields including pharmaceuticals, chemical synthesis, peptide chemistry as an aminoprotecting group, and as linkers [23][24][25][26]. Due to the strong nucleophilicity and redox properties of the sulphur atom in the DTC moiety, it has gathered significant importance among medicinal chemists as well [27][28][29]. The capacity of DTCs to create metal-complexes is also widely known.…”

Nitrogen-rich porous organic polymer as a promising adsorbent for iodine capture from organic solvents

“…Current methods for iodine adsorption face challenges, including limited capacity, irreversibility, and high costs. 7 Traditional techniques, such as employing silver-doped ionexchange zeolites, show promise for long-term storage but lack reusability. [8][9][10] Activated carbon and metal-organic frameworks (MOFs) have shown positive results, but drawbacks such as water sensitivity and low adsorption capacity 11,12 have limited their applicability.…”

“…24 By leveraging the remarkable characteristics of POPs, researchers aim to develop efficient, sustainable, and cost-effective solutions for various industrial and environmental challenges. 25 In 2023, Liya et al 7 synthesized a polymer with dithiocarbamate and amide groups to remove iodine pollution from various sources. The polymer can adsorb iodine from organic and aqueous solutions as well as vapor.…”

“…In 2023, Liya et al 7 synthesized a polymer with dithiocarbamate and amide groups to remove iodine pollution from various sources. The polymer can adsorb iodine from organic and aqueous solutions as well as vapor.…”