Heterojunction of Silicon Nanowires and TiO2 via Bioinspired Polymer for Efficient Photocatalytic Hydrogen Evolution DOI Creative Commons
Jakub Szewczyk, Stefanos Chaitoglou, Igor Iatsunskyi

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 29, 2025

The use of photocatalytic hydrogen evolution depends on the availability an efficient photocatalyst. This experiment aimed to create a type-II heterojunction between silicon nanowires and titanium dioxide bridged by biomimetic polydopamine layer for production. delivered adhesion, mechanical durability, outstanding wettability, effective transfer photogenerated charge carriers. Electron microscopy provided insight into morphology integration nanocoatings, while X-ray photoelectron spectroscopy confirmed chemical structure nanocomposite before after tests. These included voltammetric impedance studies under UV-vis irradiation, which revealed significant stable photocurrent (up 300 μA cm-2) facilitated electron through hybrid Finally, we composed band diagram obtained remote heterojunction, allowed us understand its operation principles. We believe this approach provides different perspective heterojunctions allows further development alignment strategies.

Язык: Английский

Tribological behavior of polydopamine-modified boron nitride nanoplatelets-reinforced silicate ceramic coatings DOI

Xiaoman Shi,

Hongwei Li,

Huaijun Guan

и другие.

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

1
Surface Modification of Polydopamine Particles with Polyethyleneimine Brushes for Enhanced Stability and Reduced Fragmentation DOI Open Access

Su Hyeon Son,

Eun Jin Kim,

Hye Young Koo

и другие.

Polymers, Год журнала: 2025, Номер 17(9), С. 1209 - 1209

Опубликована: Апрель 28, 2025

Polydopamine (Pdop) particles possess unique properties but suffer from inherent instability in aqueous environments due to the gradual release of Pdop fragments. This study demonstrated successful enhancement stability and reduction fragmentation through surface engineering strategies. Specifically, we investigated effects polyelectrolyte multilayer (PEM) coating (PE) brush grafting. Our results showed that PE grafting, particularly with long-chain polyethyleneimine (PEI), was more effective suppressing fragment compared PEM coating. The L-PEI grafted (2.28 chains/nm2) exhibited remarkable across a wide pH range (3-9), inhibition rates exceeding 90% most cases, reaching 93% at 5. Furthermore, direct correlation between PEI grafting density (0.64 2.28 rate observed, higher densities yielding greater stability. These findings offer promising approach for stabilizing diverse applications.

Язык: Английский

Процитировано

0
Heterojunction of Silicon Nanowires and TiO2 via Bioinspired Polymer for Efficient Photocatalytic Hydrogen Evolution DOI Creative Commons
Jakub Szewczyk, Stefanos Chaitoglou, Igor Iatsunskyi

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 29, 2025

The use of photocatalytic hydrogen evolution depends on the availability an efficient photocatalyst. This experiment aimed to create a type-II heterojunction between silicon nanowires and titanium dioxide bridged by biomimetic polydopamine layer for production. delivered adhesion, mechanical durability, outstanding wettability, effective transfer photogenerated charge carriers. Electron microscopy provided insight into morphology integration nanocoatings, while X-ray photoelectron spectroscopy confirmed chemical structure nanocomposite before after tests. These included voltammetric impedance studies under UV-vis irradiation, which revealed significant stable photocurrent (up 300 μA cm-2) facilitated electron through hybrid Finally, we composed band diagram obtained remote heterojunction, allowed us understand its operation principles. We believe this approach provides different perspective heterojunctions allows further development alignment strategies.

Язык: Английский

Процитировано

0