Cargando…
Bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process
The synthesis of titanophosphate nanosheets in aqueous sols was examined by the bottom-up process. The nanosheets were formed by mixing titanium iso-propoxide, phosphoric acid, and tetraalkylammonium hydroxide (NR(4)OH) aqueous solutions, followed by diluting with water and heating at 80 °C, forming...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417843/ https://www.ncbi.nlm.nih.gov/pubmed/36134261 http://dx.doi.org/10.1039/d0na00376j |
_version_ | 1784776813718798336 |
---|---|
author | Ban, Takayuki Asano, Keito Takai-Yamashita, Chika Ohya, Yutaka |
author_facet | Ban, Takayuki Asano, Keito Takai-Yamashita, Chika Ohya, Yutaka |
author_sort | Ban, Takayuki |
collection | PubMed |
description | The synthesis of titanophosphate nanosheets in aqueous sols was examined by the bottom-up process. The nanosheets were formed by mixing titanium iso-propoxide, phosphoric acid, and tetraalkylammonium hydroxide (NR(4)OH) aqueous solutions, followed by diluting with water and heating at 80 °C, forming translucent aqueous sols of titanophosphate nanosheets with the same crystal structure as layered titanium phosphate Ti(2)O(3)(H(2)PO(4))(2)·2H(2)O. Whether the nanosheets were crystallized depended on the reactions during the mixing of reagents before the water dilution. By controlling the acid–base reactions between the Ti species, phosphoric acid, and the hydroxides of bulky cations in the aqueous sols, the one-pot process yielded highly water-dispersible, flake-like titanophosphate nanosheets. Under some synthetic conditions, nanosheets formed even in weakly basic aqueous sols. These nanosheets can be coated on a substrate with low alkali-resistance, or used for the removal of metal ions from neutral aqueous solutions. |
format | Online Article Text |
id | pubmed-9417843 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | RSC |
record_format | MEDLINE/PubMed |
spelling | pubmed-94178432022-09-20 Bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process Ban, Takayuki Asano, Keito Takai-Yamashita, Chika Ohya, Yutaka Nanoscale Adv Chemistry The synthesis of titanophosphate nanosheets in aqueous sols was examined by the bottom-up process. The nanosheets were formed by mixing titanium iso-propoxide, phosphoric acid, and tetraalkylammonium hydroxide (NR(4)OH) aqueous solutions, followed by diluting with water and heating at 80 °C, forming translucent aqueous sols of titanophosphate nanosheets with the same crystal structure as layered titanium phosphate Ti(2)O(3)(H(2)PO(4))(2)·2H(2)O. Whether the nanosheets were crystallized depended on the reactions during the mixing of reagents before the water dilution. By controlling the acid–base reactions between the Ti species, phosphoric acid, and the hydroxides of bulky cations in the aqueous sols, the one-pot process yielded highly water-dispersible, flake-like titanophosphate nanosheets. Under some synthetic conditions, nanosheets formed even in weakly basic aqueous sols. These nanosheets can be coated on a substrate with low alkali-resistance, or used for the removal of metal ions from neutral aqueous solutions. RSC 2020-07-07 /pmc/articles/PMC9417843/ /pubmed/36134261 http://dx.doi.org/10.1039/d0na00376j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Ban, Takayuki Asano, Keito Takai-Yamashita, Chika Ohya, Yutaka Bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process |
title | Bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process |
title_full | Bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process |
title_fullStr | Bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process |
title_full_unstemmed | Bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process |
title_short | Bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process |
title_sort | bottom-up synthesis of titanophosphate nanosheets by the aqueous solution process |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417843/ https://www.ncbi.nlm.nih.gov/pubmed/36134261 http://dx.doi.org/10.1039/d0na00376j |
work_keys_str_mv | AT bantakayuki bottomupsynthesisoftitanophosphatenanosheetsbytheaqueoussolutionprocess AT asanokeito bottomupsynthesisoftitanophosphatenanosheetsbytheaqueoussolutionprocess AT takaiyamashitachika bottomupsynthesisoftitanophosphatenanosheetsbytheaqueoussolutionprocess AT ohyayutaka bottomupsynthesisoftitanophosphatenanosheetsbytheaqueoussolutionprocess |