Spongy Materials Based on Supramolecular Polymer Networks for Detection and Separation of Broad-Spectrum Pollutants

Abstract

By rationally introducing multi-interactions sites, supramolecular polymer networks (SPN-TDPG) has been successfully designed and constructed. SPN-TDPG gel shows aggregation-induced emission, meanwhile, its xerogel possesses a porous sponge structure. Interestingly, the SPN-TDPG shows detection and separation properties for broad-spectrum pollutants, such as heavy metal ions, anions, oxometallates, various organic dyes, organic pollutants, and volatile organic compounds. The detection limits of SPN-TDPG-based gel for cations and anions are in the range of 10–8 to 10–9 M. Moreover, the separation rates of SPN-TDPG-based xerogel for heavy metal ions, oxometallates, various organic dyes, and organic pollutants can reach up to 99.8%. The high sensitivity and broad-spectrum adsorption separation properties are based on the multi-interaction sites that we rationally introduced into the SPN-TDPG. Therefore, it is a convenient way for the preparation of SPN-based spongy multiple functional materials.

Nonconjugated Biocompatible Macromolecular Luminogens for Sensing and Removals of Fe(III) and Cu(II): DFT Studies on Selective Coordination(s) and On‐Off Sensing

“…Intrinsic fluorescence in nonaromatic macromolecular luminogens depend on several structural attributes, including N-branching enhanced rigidity and astricted interior mobility, [18][19][20][21] along with strategic selection of monomers and polymerization technique. [22] Indeed, a monomer bearing tertiary amide side chain should endow more rigidity and fluorescence of polymeric luminogens compared to monomers comprising primary or secondary amide functionality.…”

Controllable Fabrication of Novel Multi‐Responsive Nano‐Aggregates and Metallacycle Based on Bis‐Acylhydrazone Functionalized Pillar[5]arene

“…Supramolecular chemistry is the science that studies the assembly of two or more chemical through intermolecular non‐covalent bonding forces. Compared with traditional covalent bonds, non‐covalent bonding forces are dynamic and reversible, and are responsive to external environmental stimuli . Non‐covalent bonding forces include hydrogen bonding, electrostatic interactions, coordination interactions, hydrophilic‐hydrophobic interactions, host‐guest interactions, π‐π stacking, Van der Waals forces, etc .…”

Rational Tuning of Binding Properties of Pillar[5]arene-Based Crystalline Material by Synergistic Effect and Its Application for Fluorescent Detection and Adsorption of 1,2-Ethylenediamine

“…In view of this fact, and as a part of our interest in the host–guest recognition, − adsorption methods, and materials, , herein, to improve the binding ability of the macrocyclic host for short-chain alkyldiamines, a “synergistic effect” − was rationally introduced into the design of pillar[5]­arene-based host. The strategy is as follows: to supply synergistic effect, as shown in Schemes and S1, 8-hydroxyquinoline was employed to functionalize the pillar[5]­arene-based host and obtained bis-8-hydroxyquinoline-functionalized pillar[5]­arene ( PQ8 ).…”