A New Route for Low Pressure and Temperature CWAO: A PtRu/MoS_Hyper-Crosslinked Nanocomposite

Overview

Journal Nanomaterials (Basel)

Date 2019 Oct 20

PMID 31627397

Citations 2

Authors

Rachele Castaldo

Mariagrazia Iuliano

Mariacristina Cocca

Veronica Ambrogi

Gennaro Gentile

Maria Sarno

Affiliations

Soon will be listed here.

Abstract

PtRu/MoS nanoparticles (NPs) (PtRu alloy partially coated by one-layer MoS nanosheets) were prepared through a 'wet chemistry' approach. The obtained NPs were directly embedded, at 5 parts per hundred resin/rubber (phr) loading, in a poly (divinylbenzene-co-vinyl benzyl chloride) hyper-crosslinked (HCL) resin, synthesized via bulk polymerization of the resin precursors, followed by conventional FeCl post-crosslinking. The obtained HCL nanocomposites were characterized to evaluate the effect of the NPs. It shows a high degree of crosslinking, a good dispersion of NPs and a surface area up to 1870 ± 20 m/g. The catalytic activity of the HCL nanocomposite on phenol wet air oxidation was tested at low air pressure (P = 0.3 MPa) and temperature (T = 95 °C), and at different phenol concentrations. At the lower phenol concentration, the nanocomposite gives a total organic carbon (TOC) conversion of 97.1%, with a mineralization degree of 96.8%. At higher phenol concentrations, a phenol removal of 99.9%, after 420 min, was achieved, indicating a quasi-complete depletion of phenol, with a TOC conversion of 86.5%, corresponding to a mineralization degree of 84.2%. Catalyst fouling was evaluated, showing good reusability of the obtained nanocomposite.

Citing Articles

Hyper-Crosslinked Porous Organic Nanomaterials: Structure-Oriented Design and Catalytic Applications.

Luo Y, Mei Y, Xu Y, Huang K Nanomaterials (Basel). 2023; 13(18).

PMID: 37764543 PMC: 10537049. DOI: 10.3390/nano13182514.

Hyper-Crosslinked Polymer Nanocomposites Containing Mesoporous Silica Nanoparticles with Enhanced Adsorption Towards Polar Dyes.

Guerritore M, Castaldo R, Silvestri B, Avolio R, Cocca M, Errico M Polymers (Basel). 2020; 12(6).

PMID: 32575792 PMC: 7362258. DOI: 10.3390/polym12061388.

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