Porous organic nanofiber polymers as superfast adsorbents for capturing pharmaceutical contaminants from water

Abstract

The development of simple, low-cost adsorbents is critical for waste management in the medical industry (in particular, pharmaceutical and personal care product (PPCP) waste) to restore the natural state of...

Nanofibrous Porous Organic Polymers and Their Derivatives: From Synthesis to Applications

“…Control over the pre-crosslinking degree, supercrosslinking degree, and carbonization duration could produce porous carbons exhibiting a SSA value of 1615 m 2 g −1 and excellent porosity. Compared to the template-free carbonization [66] Copyright 2022, Royal Society of Chemistry. c) Photo images showing the filtration process using a PVASi@TEDB-NH 2 sponge syringe filter.…”

“…The introduction of hydroxyl (─OH) groups to the surface of POP NFs enhances their interaction with organic pollutants through non-covalent forces. For instance, Ravi et al [66] synthesized three hypercrosslinked POPs with abundant ─OH groups via the Friedel-Crafts reaction to remove PPCPs. Among these, nanofibrous HPOP-3, with a SSA of 552 m 2 g −1 , displayed the best adsorption performance due to easily accessible active sites on the pore surface.…”

“…[61][62][63][64] No wonder that extensive efforts have been dedicated to shaping POPs into nanofibers, enhancing their utility in target systems. [65][66][67] Research aiming at producing POPs nanofibers (POP NFs) can be broadly categorized into two approaches: direct bulk synthesis, involving hard-template, soft-template, and template-free methods, and electrospinning-aided synthesis. The formation mechanisms of POP NFs with varied chemical composition and morphologies have been summarized and comparably viewed indepth, where key experiment factors such as reactant concentration, monomer type, solubility, mechanical agitation, and reaction time have been systematically discussed.…”

“…a) The benefits of employing nanofibrous POPs for wastewater treatment. b) Possible interaction mechanism of PPCPs adsorption on HPOP-3 powder [66]. Copyright 2022, Royal Society of Chemistry.…”

Novel Porous Organic Polymer Catalyst with Phosphate and Sulfonic Acid Sites for Facile Esterification of Levulinic Acid

“…Porous organic polymers (POPs) containing covalent linkages of organic precursors exhibit a high surface area, a tunable backbone, excellent physicochemical stability, and flexibility for rational design. Hence, they have been used in catalysis, adsorption, gas separation, sensor, proton conductor, and energy storage. − In particular, surface-functionalized POPs have shown potential as catalysts for biomass conversion. − Ravi et al converted fructose to 5-hydroxymethylfurfural (HMF) over novel phosphate-functionalized POPs with strong acidic sites, large surface areas, and high mesoporosity . Du et al introduced sulfonic acids into the aromatic sites of POP to catalyze fructose conversion to HMF .…”