Selective removal of toxic organic dyes using Trӧger base-containing sulfone copolymers made from a metal-free thiol-yne click reaction followed by oxidation

Abstract

Copolymers TCP1–3 with Trӧger's base units and aryl thioether groups were made via a click reaction. Selective oxidation of the thioethers into sulfone groups afforded TCP4–6 which display up to 100% removal efficiency of methylene blue from water.

Removal of anionic and cationic dyes using porous copolymer networks made from a Sonogashira cross‐coupling reaction of diethynyl iron (II) clathrochelate with various arylamines

“…Recyclability tests with CR and MO disclosed a 100% adsorption efficiency for three successive cycles before the uptake dropped to 73% and 82%, respectively (Figures S24–S27). It is noteworthy that, to the best of our knowledge, these results are either superior or equivalent to the adsorption capacities for several compounds ranging from polymers to composites reported in the literature 1,17,44–51 …”

“…It is noteworthy that, to the best of our knowledge, these results are either superior or equivalent to the adsorption capacities for several compounds ranging from polymers to composites reported in the literature. 1,17,[44][45][46][47][48][49][50][51] The performance of a material as an adsorbent of a particular dye and/or a group of dyes is analyzed by selective adsorption and separation. Therefore, adsorption selectivity tests were carried out by stirring 5 mg of CLA4 in a 5 ml aqueous solution of an equal 8 mg L À1 concentration mixture of the cationic MEB and anionic MO dyes at ambient temperature.…”

“…9,10 Consequently, there has been a growing interest in the past few years to develop separation technologies of organic dyes from industrial wastewater using various techniques, such as, coagulation, sedimentation, chemical treatment, membrane filtration, and adsorption [11][12][13][14] where the latter was found to be very promising due to several advantages, among others, its ease of synthesis and efficacy. [15][16][17][18] Therefore, the pollution of freshwater resources with organic dyes can be prevented by developing novel adsorbent materials that demonstrate superior adsorption capacity and selectivity toward dyes and whose synthesis can be achieved via versatile chemical strategies.…”

Poly(arylene ether)s-Based Polymeric Membranes Applied for Water Purification in Harsh Environment Conditions: A Mini-Review

“…Sulfonyl functional groups are enriched in the main chain of PES compounds and interact with the cationic MB dye through various forces such as electrostatic interactions, hydrogen bonding, and π-π interactions [67]. The presence of the sulfone group, being more polar than the ether group, accelerates ion exchange, thus enhancing electrostatic attraction and significantly improving the adsorption capacity of PES/HPC nanofibrous membranes [68].…”

Thiol‐yne 3D Printable Polymeric Resins for the Efficient Removal of a Model Pollutant from Waters

“…[43] Thiol-yne materials, due to their diverse applications, have recently gained popularity for the extraction and removal of various water pollutants such as heavy metals, [55,56] microplastics, [57] fungicides, [58] and dyes. [59,60] Most of the processes with these materials require time-consuming material synthesis and/or post-synthesis surface modifications. In comparison, our developed 3D printable materials are based on commercially available BA and PETMP which makes them easily accessible.…”