Cargando…

Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification

[Image: see text] Cellulose-based functional materials have gained immense interest due to their low density, hydrophilicity, chirality, and degradability. So far, a facile and scalable preparation of fibrillated cellulose by treating the hydroxy groups of cellulose with citric acid (F-CAC) has been...

Descripción completa

Detalles Bibliográficos
Autores principales: Chutimasakul, Threeraphat, Uetake, Yuta, Tantirungrotechai, Jonggol, Asoh, Taka-aki, Uyama, Hiroshi, Sakurai, Hidehiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7774275/
https://www.ncbi.nlm.nih.gov/pubmed/33403282
http://dx.doi.org/10.1021/acsomega.0c04894
_version_ 1783630230557032448
author Chutimasakul, Threeraphat
Uetake, Yuta
Tantirungrotechai, Jonggol
Asoh, Taka-aki
Uyama, Hiroshi
Sakurai, Hidehiro
author_facet Chutimasakul, Threeraphat
Uetake, Yuta
Tantirungrotechai, Jonggol
Asoh, Taka-aki
Uyama, Hiroshi
Sakurai, Hidehiro
author_sort Chutimasakul, Threeraphat
collection PubMed
description [Image: see text] Cellulose-based functional materials have gained immense interest due to their low density, hydrophilicity, chirality, and degradability. So far, a facile and scalable preparation of fibrillated cellulose by treating the hydroxy groups of cellulose with citric acid (F-CAC) has been developed and applied as a reinforcing filler for polypropylene composite. Herein, a size-selective preparation of Au nanoparticles (NPs) stabilized by F-CAC is described. By modifying the conditions of transdeposition method, established in our group previously, a transfer of Au NPs from poly(N-vinyl-2-pyrrolidone) (PVP) to F-CAC proceeded up to 96% transfer efficiency with retaining its cluster sizes in EtOH. Meanwhile, the deposition efficiency drastically decreased in the case of nonmodified cellulose, showing the significance of citric acid modification. A shift of binding energy at Au 4f core level X-ray photoelectron spectroscopy from 82.0 to 83.3 eV indicated that the NPs were stabilized on an F-CAC surface rather than by PVP matrix. The reproducible particle size growth was observed when 2-propanol was used as a solvent instead of EtOH, expanding the range of the available particle size with simple manipulation. The thus-obtained Au:F-CAC nanocatalysts exhibited a catalytic activity toward an aerobic oxidation of 1-indonol in toluene to yield 1-indanone quantitatively and were recyclable at least six times, illustrating high tolerance against organic solvents.
format Online
Article
Text
id pubmed-7774275
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher American Chemical Society
record_format MEDLINE/PubMed
spelling pubmed-77742752021-01-04 Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification Chutimasakul, Threeraphat Uetake, Yuta Tantirungrotechai, Jonggol Asoh, Taka-aki Uyama, Hiroshi Sakurai, Hidehiro ACS Omega [Image: see text] Cellulose-based functional materials have gained immense interest due to their low density, hydrophilicity, chirality, and degradability. So far, a facile and scalable preparation of fibrillated cellulose by treating the hydroxy groups of cellulose with citric acid (F-CAC) has been developed and applied as a reinforcing filler for polypropylene composite. Herein, a size-selective preparation of Au nanoparticles (NPs) stabilized by F-CAC is described. By modifying the conditions of transdeposition method, established in our group previously, a transfer of Au NPs from poly(N-vinyl-2-pyrrolidone) (PVP) to F-CAC proceeded up to 96% transfer efficiency with retaining its cluster sizes in EtOH. Meanwhile, the deposition efficiency drastically decreased in the case of nonmodified cellulose, showing the significance of citric acid modification. A shift of binding energy at Au 4f core level X-ray photoelectron spectroscopy from 82.0 to 83.3 eV indicated that the NPs were stabilized on an F-CAC surface rather than by PVP matrix. The reproducible particle size growth was observed when 2-propanol was used as a solvent instead of EtOH, expanding the range of the available particle size with simple manipulation. The thus-obtained Au:F-CAC nanocatalysts exhibited a catalytic activity toward an aerobic oxidation of 1-indonol in toluene to yield 1-indanone quantitatively and were recyclable at least six times, illustrating high tolerance against organic solvents. American Chemical Society 2020-12-17 /pmc/articles/PMC7774275/ /pubmed/33403282 http://dx.doi.org/10.1021/acsomega.0c04894 Text en © 2020 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Chutimasakul, Threeraphat
Uetake, Yuta
Tantirungrotechai, Jonggol
Asoh, Taka-aki
Uyama, Hiroshi
Sakurai, Hidehiro
Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification
title Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification
title_full Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification
title_fullStr Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification
title_full_unstemmed Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification
title_short Size-Controlled Preparation of Gold Nanoparticles Deposited on Surface-Fibrillated Cellulose Obtained by Citric Acid Modification
title_sort size-controlled preparation of gold nanoparticles deposited on surface-fibrillated cellulose obtained by citric acid modification
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7774275/
https://www.ncbi.nlm.nih.gov/pubmed/33403282
http://dx.doi.org/10.1021/acsomega.0c04894
work_keys_str_mv AT chutimasakulthreeraphat sizecontrolledpreparationofgoldnanoparticlesdepositedonsurfacefibrillatedcelluloseobtainedbycitricacidmodification
AT uetakeyuta sizecontrolledpreparationofgoldnanoparticlesdepositedonsurfacefibrillatedcelluloseobtainedbycitricacidmodification
AT tantirungrotechaijonggol sizecontrolledpreparationofgoldnanoparticlesdepositedonsurfacefibrillatedcelluloseobtainedbycitricacidmodification
AT asohtakaaki sizecontrolledpreparationofgoldnanoparticlesdepositedonsurfacefibrillatedcelluloseobtainedbycitricacidmodification
AT uyamahiroshi sizecontrolledpreparationofgoldnanoparticlesdepositedonsurfacefibrillatedcelluloseobtainedbycitricacidmodification
AT sakuraihidehiro sizecontrolledpreparationofgoldnanoparticlesdepositedonsurfacefibrillatedcelluloseobtainedbycitricacidmodification