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Dual internal functionalization of imogolite nanotubes as evidenced by optical properties of Nile red
https://orcid.org/0000-0003-0163-3638
Abstract Hybrid imogolites have been prepared by combining methyltrimethoxysilane with various organosilanes (Si-R) to obtain nanotubes with a bi-functional internal cavity. With an initial doping ratio Si-R/Si of 5%, nanotubes remain the major product in the samples and their diameter is not modified compared to pristine methyl imogolite (Imo–CH3). The nanotube wall's internal polarity and reactivity is significantly changed as evidenced by using a solvatochromic dye (Nile red). This research opens many possibilities to bring selectivity to the internal cavity or to manipulate the properties of trapped organic molecules.
Graphical abstract Display Omitted
Highlights Hybrid imogolite can be prepared with a bi-functional internal surface. The internal environment of hybrid nanotubes is tunable. Solvatochromic trapped molecules reveal the presence of new surface chemical groups.
Dual internal functionalization of imogolite nanotubes as evidenced by optical properties of Nile red
https://orcid.org/0000-0003-0163-3638
Abstract Hybrid imogolites have been prepared by combining methyltrimethoxysilane with various organosilanes (Si-R) to obtain nanotubes with a bi-functional internal cavity. With an initial doping ratio Si-R/Si of 5%, nanotubes remain the major product in the samples and their diameter is not modified compared to pristine methyl imogolite (Imo–CH3). The nanotube wall's internal polarity and reactivity is significantly changed as evidenced by using a solvatochromic dye (Nile red). This research opens many possibilities to bring selectivity to the internal cavity or to manipulate the properties of trapped organic molecules.
Graphical abstract Display Omitted
Highlights Hybrid imogolite can be prepared with a bi-functional internal surface. The internal environment of hybrid nanotubes is tunable. Solvatochromic trapped molecules reveal the presence of new surface chemical groups.
Dual internal functionalization of imogolite nanotubes as evidenced by optical properties of Nile red
https://orcid.org/0000-0003-0163-3638
Abstract Hybrid imogolites have been prepared by combining methyltrimethoxysilane with various organosilanes (Si-R) to obtain nanotubes with a bi-functional internal cavity. With an initial doping ratio Si-R/Si of 5%, nanotubes remain the major product in the samples and their diameter is not modified compared to pristine methyl imogolite (Imo–CH3). The nanotube wall's internal polarity and reactivity is significantly changed as evidenced by using a solvatochromic dye (Nile red). This research opens many possibilities to bring selectivity to the internal cavity or to manipulate the properties of trapped organic molecules.
Graphical abstract Display Omitted
Highlights Hybrid imogolite can be prepared with a bi-functional internal surface. The internal environment of hybrid nanotubes is tunable. Solvatochromic trapped molecules reveal the presence of new surface chemical groups.
Dual internal functionalization of imogolite nanotubes as evidenced by optical properties of Nile red
Picot, Pierre (author) / Gobeaux, Frederic (author) / Coradin, Thibaud (author) / Thill, Antoine (author)
Applied Clay Science ; 178
2019-05-14
Article (Journal)
Electronic Resource
English
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