Polymer particles armored with cobalt oxide nanosheets for the catalytic degradation of bisphenol A

Abstract

22D particle surfactants are attractive for the formation of highly stable emulsions and use as templates to prepare composite structures with performance properties dependent on the composition. Cobalt oxide nanosheets...

Engineering Multifunctional Stratified LiCoO2 Catalysts: Structural Disorder to Microstructural Exfoliation

“…[36][37][38]48 As opposed to using the chemically exfoliated nanosheets, which are typically used in many applications, the work presented here examines use of the acid-treated powder precursor and TMAOH-treated powder byproduct from the exfoliation reaction. Thus far, reports of LCO powders and derivatives using these methods have little to no catalytic data reported with a few exceptions, notably Escamilla et al 40 Using knowledge gained from prior processing, 36−38 theoretical analysis, 43 characterization, 41,42 and application-based studies, 39,40 this work demonstrates the usefulness of LCO powder processing for photocatalytic and thermocatalytic applications. The work further develops mechanistic interpretations of the critical roles of defects and the chemical treatment process, which form the fundamental basis of the resultant catalytic performance.…”

“…Such alternative applications may become critical owing to the high level of waste generated from the widespread use of Li-ion batteries. In addition, the exfoliation of lithium cobalt oxide is sparsely reported. − Limited methods for the exfoliation of bulk LCO methods have been described, including chemical leaching, , intercalation of large cations, , or thermal treatment . The processing methods result in different products in terms of size and thickness, which may result in variations in performance.…”

Pickering Emulsions as Templates for Architecting Composite Structures

“…For example, dispersion polymerization of emulsions stabilized by transition metal carbide nanosheets (i.e., MXenes) produce MXene-armored polystyrene particles that can be hot pressed into composite films for use in electromagnetic interference (EMI) shielding . Alternatively, cobalt oxide nanosheets surfactants and dispersion polymerization gives nanosheet-armored polybenzyl methacrylate particles that can activate catalysts for the degradation of bisphenol A . In complement, polymerization of the continuous phase of MXene-stabilized emulsions yields foams with pores lined with the nanosheets.…”

“…17 Alternatively, cobalt oxide nanosheets surfactants and dispersion polymerization gives nanosheet-armored polybenzyl methacrylate particles that can activate catalysts for the degradation of bisphenol A. 18 In complement, polymerization of the continuous phase of MXene-stabilized emulsions yields foams with pores lined with the nanosheets. Applying this approach to high internal phase emulsions (HIPES, in which the emulsion is >74 vol % discontinuous phase) yields opencell foams with pores lined with MXenes.…”

A Hybrid Synthesis Approach: Tailoring Photocatalytic Activity of Co3O4 Nanoparticles by PEG Functionalization

“…The surface engineering of Co3O4 nanoparticles plays a pivotal role in tailoring their properties for specific applications. Depending on the desired application, polymers and surfactants can be employed to generate a surface coating on Co3O4 nanoparticles [23]. Polymers exhibit significant influence over particle size and surface morphology, offering a means to finely tune the characteristics of Co3O4 nanoparticles [24].…”