ORCID Profile
0000-0002-0660-0088
Current Organisations
I.M. Sechenov First Moscow State Medical University
,
Northeastern University
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Publisher: IOP Publishing
Date: 11-06-2021
Publisher: Elsevier BV
Date: 02-2019
Publisher: IOP Publishing
Date: 18-05-2018
Abstract: This study reports a visible light-driven plasmonic photocatalyst of Au deposited AgVO
Publisher: Elsevier BV
Date: 06-2019
Publisher: Elsevier BV
Date: 05-2019
Publisher: MDPI AG
Date: 20-01-2020
Abstract: Exploring solar-excited heterogeneous photocatalysts by taking advantage of surface plasmon resonance (SPR) has drawn growing research attention. As it could help to pave the way for global sustainable development. The decoration of TiO2 particles with noble metals possessing SPR effects is regarded as one of the most effective solutions. The perfect match of the SPR absorption band with the spectrum of incident light is an essential factor for plasmonic enhancement. However, modifying with sole noble metal is often limited as it tunes wavelength of only several nanometers. To overcome this drawback, an alternative approach can be offered by decoration with more than one noble metal. For instance, Au-Ag co-decoration displays greatly adjustable, composition-dependent SPR agent over a broad range of the visible light spectrum (ca. from 415 to 525 nm). Hence Au-Ag complex is a remarkable candidate for tuning the photo adsorption of TiO2 from UV to visible light. This study presents a novel and tailored method for the fabrication of Au-Ag co-modified TiO2 particles, and how Au-Ag dependent SPR was applied as the visible light-responsive TiO2 based photocatalysts in a simple but reliable way. The fabricated Au-Ag co-decorated TiO2 (AuxAg(1−x)/TiO2) was characterized and proved to own excellent stability and large specific surface area. The optimization of these particles against the wavelength of maximal solar light intensity was confirmed by photo degradation of methylene blue under visible light radiation. This work may provide further insight into the design of TiO2-based composites with improved photocatalytic properties for environmental remediation and renewable energy utilization.
Publisher: Elsevier BV
Date: 11-2018
Publisher: Elsevier BV
Date: 10-2023
Publisher: Elsevier BV
Date: 08-2023
Publisher: Elsevier BV
Date: 06-2018
Publisher: Elsevier BV
Date: 10-2019
Publisher: Elsevier BV
Date: 10-2202
Publisher: Elsevier BV
Date: 02-2019
Publisher: MDPI AG
Date: 25-09-2022
Abstract: Developing high-performance photocatalysts for H2 production via fabricating heterojunctions has attracted much attention. Herein, we design a simple strategy to prepare composites that consist of TaON/CdS hybrids via a hydrothermal process. The results show that the pristine CdS nanoparticles loaded with 20 wt% TaON (TC4) could maximize the photocatalytic hydrogen evolution rate to 19.29 mmol g−1 h−1 under visible light irradiation, which was 2.13 times higher than that of the pristine CdS (9.03 mmol g−1 h−1) under the same conditions. The apparent quantum yield (AQY) of the TC4 nanocomposites at 420 nm was calculated to be 18.23%. The outstanding photocatalytic performance of the composites can be ascribed to the formation of heterojunctions. The electrochemical measurements indicate that the decoration facilitates the generation of extra photo-electrons, prolonging the recombination rate of photogenerated charge carriers, offering adequate active sites and improving catalytic stability. This study sheds light on the construction strategy and the deep understanding of the novel CdS-based composites for high-performance photocatalytic H2 production.
Publisher: American Chemical Society (ACS)
Date: 04-03-2021
Publisher: Elsevier BV
Date: 05-2022
Publisher: Elsevier BV
Date: 04-2018
Location: Russian Federation
No related grants have been discovered for Xiaohong Yang.