Hairy silica nanosphere supported metal nanoparticles for reductive degradation of dye pollutants

Abstract

Hairy materials can act as a sort of scaffold for the fabrication of functional hybrid composites. In this work, silica nanospheres modified with covalently grafted poly(4-vinylpyridine) (P4VP) brushes, namely, “hairy”...

Construction of Enhanced Photostability Anthraquinone-Type Nanovesicles Based on a Novel Two-Step Supramolecular Assembly Strategy and Their Application on Multiband Laser-Responsive Composites

“…In comparison, the photostability of 1,4-AQ-ODs@PS- b -PAA vesicles is the best, followed by that of 1,4-AQ-ODs. Simultaneously, degradation of dyes can be considered as a pseudo-first order reaction according to many previous reports. − The photodegradation rate curves of the 1,4-AQ, 1,4-AQ-ODs and 1,4-AQ-ODs@PS- b -PAA vesicles can be acquired from the change of absorption spectra. The photodegradation equation can be simplified as ln­( A 0 / A t ) = kt , , in which “ k ” is the photodegradation reaction rate constant, “ A t ” means the absorption of λ max during irradiation, and “ A 0 ” represents the initial absorption of λ max .…”

Controlling the anisotropic self-assembly of polybutadiene-grafted silica nanoparticles by tuning three-body interaction forces

“…mechanical reinforcement, thermal conduction, and selective permeation of gases), HNPs can be considered promising building blocks for the synthesis of advanced materials for several technological applications, such as tire and rubber industry, catalysis, nanomedicine, coatings, and water treatment. [22][23][24][25] The HNPs organization on shaped-controlled superstructures depends on several parameters such as particle dimension, morphology, surface chemistry, polymer type, grafting density, molecular weight (Mw), 11 and even on the grafting mechanism employees to create the polymer-grafted NP. 26 The theoretical and simulation methods offer an effective way to study the selfassembly behavior of HNPs at the molecular level and investigate how the HNPs morphologies depend on the ligand grafting density, chain length, etc.…”

“…mechanical reinforcement, thermal conduction, and selective permeation of gases), HNPs can be considered promising building blocks for the synthesis of advanced materials for several technological applications, such as tire and rubber industry, catalysis, nanomedicine, coatings, and water treatment. 22–25…”

Nanogap engineering of 3D nanoraspberries into 2D plasmonic nanoclusters toward improved SERS performance

“…First, SiO 2 - g -P(4VP- co -DVB) was prepared by introducing a small amount of cross-linker DVB, according to our previously reported route. 40 The SiO 2 nanosphere was covered with a slightly cross-linked thin P4VP shell. Then, SiO 2 - g -P(4VP- co -DVB) can act as a template for the adsorption of AuNPs because the pyridine groups of P4VP can strongly bind with AuNPs through specific Au–N interactions.…”