eprintid: 13452
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/34/52
datestamp: 2023-11-10 03:28:00
lastmod: 2023-11-10 03:28:00
status_changed: 2023-11-10 01:51:12
type: article
metadata_visibility: show
creators_name: Liu, L.
creators_name: Ding, J.
creators_name: Sarrigani, G.V.
creators_name: Fitzgerald, P.
creators_name: Aljunid Merican, Z.M.
creators_name: Lim, J.-W.
creators_name: Tseng, H.-H.
creators_name: Xie, F.
creators_name: Zhang, B.
creators_name: Wang, D.K.
title: Enhanced catalyst dispersion and structural control of Co3O4-silica nanocomposites by rapid thermal processing
ispublished: pub
keywords: Catalysis; Degradation; Nanocatalysts; Nanocomposites; Naphthalene; Oxidation; Physicochemical properties; Rapid thermal processing; Silica; Silicones; Sol-gel process; Sol-gels; Structural dynamics, Degradation efficiency; Fenton reactions; Homogeneous nanoparticles; Organic degradation; Silica nanocomposites; Structural control; Structural formation; Tetraethyl orthosilicates, Cobalt compounds
note: cited By 9
abstract: We synthesized cobalt tetroxide (Co3O4) silica nanocomposites based on the conventional tetraethyl orthosilicate (TEOS) monomer and ethoxy polysiloxane (ES40) oligomer by sol-gel chemistry coupled with rapid thermal process (RTP). The physicochemical properties and structural formation of cobalt oxide silica nanocomposites were comprehensive characterized. By using ES40, well-controlled, homogeneous nanoparticle dispersion and size of Co3O4 with 5 nm within the silica matrix were achieved leading to fractal-like morphology. The concentration of the Co3O4 nanocatalyst was also significantly enhanced by more than 50 folds. Fenton-like HCO3�/H2O2 catalytic system using acid orange 7 and nanocomposites was examined for organic degradation. 98 AO7 and naphthalene intermediates degradation efficiency was achieved after 20 min with ES40-derived catalyst, which was three to ten folds faster than that of the TEOS-derived catalyst and the commercial Co3O4 catalyst. The combined use of ES40 sol-gel and RTP enabled a simple way to nanomaterial preparation and lowers overall processing time. © 2019 Elsevier B.V.
date: 2020
publisher: Elsevier B.V.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85073254326&doi=10.1016%2fj.apcatb.2019.118246&partnerID=40&md5=e738be75cac536e2f040ddfd2cd56122
id_number: 10.1016/j.apcatb.2019.118246
full_text_status: none
publication: Applied Catalysis B: Environmental
volume: 262
refereed: TRUE
issn: 09263373
citation:   Liu, L. and Ding, J. and Sarrigani, G.V. and Fitzgerald, P. and Aljunid Merican, Z.M. and Lim, J.-W. and Tseng, H.-H. and Xie, F. and Zhang, B. and Wang, D.K.  (2020) Enhanced catalyst dispersion and structural control of Co3O4-silica nanocomposites by rapid thermal processing.  Applied Catalysis B: Environmental, 262.   ISSN 09263373