Tunable thiophene-based conjugated microporous polymers for the disposal of toxic hexavalent chromium

Abstract

Herein we report the rational syntheses of three conjugated microporous polymers (CMPs) through one-pot polycondensation couplings of a boronated triphenylpyridine (TPP-3Bor) with 4,7-bis(5-bromothien-2-yl)benzo[c][1,2,5]thiadiazole (ThZ-2Br), 2,5-dibromothiophene (Th-2Br), and 1,4-dibromobenzene (Bz-2Br), yielding...

Imidazolium-Functionalized Conjugated Polymer for On-Site Visual and Ultrasensitive Detection of Toxic Hexavalent Chromium

“…Following adsorption, two new peaks at 577.88 and 586.08 eV were detected (Figure S14), which can be ascribed to Cr 2p 1/2 and Cr 2p 3/2 spin–orbital peaks, further confirming successful adsorption of Cr­(VI) ions onto PF-DBT-Im. The high-resolution spectrum of Cr 2p after adsorption could be deconvoluted with four peaks located at 576.48, 578.30, 585.92, and 587.80 eV, which were assigned to Cr 2p 3/2 (III), Cr 2p 3/2 (VI), Cr 2p 1/2 (III), and Cr 2p 1/2 (VI), respectively . This implies that some of the Cr­(VI) ions were also reduced to Cr­(III) after the adsorption process (Figure d).…”

Phenazine-integrated conjugated microporous polymers for modulating the mechanics of supercapacitor electrodes

“…These flaws are highly reactive with physically adsorbed oxygen, forming oxygen-containing groups when exposed to air. 44 The carbon-oxygen bonds in the C 1s spectrum and the wide-scan spectra of the CMP samples demonstrate oxygen functional groups, according to the XPS analysis (Fig. S9a and b, ESI †).…”

“…[34][35][36][37][38][39][40][41] Moreover, through simple modification of their chemistry, CMPs can be prepared with high voltage windows and alterable redox performance. [42][43][44][45][46] Although both phenazines and CMPs have been examined individually for their characteristics in energy storage, to the best of our knowledge the use of phenazinebased CMPs as supercapacitor electrodes has never been deeply discussed previously.…”

Conjugated microporous polymers: their synthesis and potential applications in flexible electrodes

“…3e). In 2023, Kuo et al 51 prepared a series of CMPs, namely TPP-ThZ, TPP-Th, and TPP-Bz CMPs, characterized by high thermal stability, smooth structure and tunable surface area by using TPP as a constant linker and incorporating three monomers (ThZ, Th, and Bz). It was found that the ability of CMPs for Cr( vi ) reduction increased with the increase of thiophene content, owing to different thiophene content, topology and molecular structure (Fig.…”