CsPbBr3/Cs4PbBr6 Perovskite@COF Nanocomposites for Visible-Light-Driven Photocatalytic Application in Water

2021 ◽  
Author(s):  
Prachi Kour ◽  
Shatabdi Porel Mukherjee
Keyword(s):  
Visible Light ◽  
Crystal Structures ◽  
Atmospheric Conditions ◽  
Photocatalytic Application ◽  
Visible Light Driven ◽  
First Time

For the first time, we have synthesized all-inorganic CsPbBr3/Cs4PbBr6 perovskite@COF nanocomposites in atmospheric conditions and tuned the crystal structures of the perovskite as well. The nanocomposite is reasonably stable and...

Effect of controlling the number of fused rings on polymer photocatalysts for visible-light-driven hydrogen evolution

2019 ◽  
Vol 7 (40) ◽  
pp. 22924-22929 ◽  
Author(s):  
Li-Yu Ting ◽  
Jayachandran Jayakumar ◽  
Chih-Li Chang ◽  
Wei-Cheng Lin ◽  
Mohamed Hammad Elsayed ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Photocatalytic Performance ◽  
Visible Light Driven ◽  
First Time

The introduction of fused thiophene units into the fluorene analogues, for the first time, resulted in an improved photocatalytic performance of the polymer photocatalysts.

Hierarchical nanostructures of γ-TaON flowers for enhanced visible light driven photocatalytic activities

2015 ◽  
Vol 51 (12) ◽  
pp. 2437-2439 ◽  
Author(s):  
Zheng Wang ◽  
Keng Xie ◽  
Lei Zhao ◽  
Bangsheng Zhang
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Single Phase ◽  
Hydrogen Production Rate ◽  
Facile Hydrothermal Method ◽  
Hierarchical Nanostructures ◽  
Photocatalytic Activities ◽  
Visible Light Driven ◽  
First Time

Hierarchical nanostructures of single phase γ-TaON flowers as novel photocatalysts were synthesized for the first time via a facile hydrothermal method exhibiting a high photocatalytic hydrogen production rate under visible light irradiation.

Facile fabrication of InSe nanosheets: towards efficient visible-light-driven H2 production by coupling with P25

2015 ◽  
Vol 2 (7) ◽  
pp. 657-661 ◽  
Author(s):  
Ding Wei ◽  
Lihua Yao ◽  
Song Yang ◽  
Jufang Hu ◽  
Minhua Cao ◽  
...  
Keyword(s):  
Visible Light ◽  
H2 Production ◽  
Visible Light Driven ◽  
Facile Fabrication ◽  
First Time ◽  
Visible Light Photocatalytic

InSe nanosheets and their coupling with P25 have been successfully synthesized via a hydrothermal–calcining process, and they were for the first time used for visible light photocatalytic H2 production.

scholarly journals Spectrally resolved efficiencies of carbon monoxide (CO) photoproduction in the western Canadian Arctic: particles versus solutes

2013 ◽  
Vol 10 (6) ◽  
pp. 3731-3748 ◽  
Author(s):  
G. Song ◽  
H. Xie ◽  
S. Bélanger ◽  
E. Leymarie ◽  
M. Babin
Keyword(s):  
Carbon Monoxide ◽  
Organic Matter ◽  
Particulate Matter ◽  
Visible Light ◽  
Euphotic Zone ◽  
Apparent Quantum Yield ◽  
Mineral Absorption ◽  
Visible Light Driven ◽  
Spectrally Resolved ◽  
First Time

Abstract. Spectrally resolved efficiency (i.e. apparent quantum yield, AQY) of carbon monoxide (CO) photoproduction is a useful indicator of substrate photoreactivity and a crucial parameter for modeling CO photoproduction rates in the water column. Recent evidence has suggested that CO photoproduction from particles in marine waters is significant compared to the well-known CO production from chromophoric dissolved organic matter (CDOM) photodegradation. Although CDOM-based CO AQY spectra have been extensively determined, little is known of this information on the particulate phase. Using water samples collected from the Mackenzie estuary, shelf, and Canada Basin in the southeastern Beaufort Sea, the present study for the first time quantified the AQY spectra of particle-based CO photoproduction and compared them with the concomitantly determined CDOM-based CO AQY spectra. CO AQYs of both particles and CDOM decreased with wavelength but the spectral shape of the particulate AQY was flatter in the visible regime. This feature resulted in a disproportionally higher visible light-driven CO production by particles, thereby increasing the ratio of particle- to CDOM-based CO photoproduction with depth in the euphotic zone. In terms of depth-integrated production in the euphotic zone, CO formation from CDOM was dominated by the ultraviolet (UV, 290–400 nm) radiation whereas UV and visible light played roughly equal roles in CO production from particles. Spatially, CO AQY of bulk particulate matter (i.e. the sum of organics and inorganics) augmented from the estuary and shelf to the basin while CO AQY of CDOM trended inversely. Water from the deep chlorophyll maximum layer revealed higher CO AQYs than did surface water for both particles and CDOM. CO AQY of bulk particulate matter exceeded that of CDOM on the shelf and in the basin, but the sequence reversed in the estuary. Without consideration of the potential role of metal oxides (e.g. iron oxides) in particle photochemistry, mineral absorption-corrected CO AQY of particulate organic matter (POM) could, however, surpass its CDOM counterpart in all three sub-regions and displayed magnitudes in the estuary that overtook those in shelf and offshore waters. In terms of CO photoproduction, POM was thus more photoreactive than CDOM, irrespective of the organic matter's origins (i.e. terrigenous or marine). Riverine CDOM exhibited higher photoreactivity than marine CDOM and land-derived POM appeared more photoreactive than marine POM. AQY-based modeling indicates that CO photoproduction in the study area is underestimated by 12–32% if the particulate term is ignored.

Construction of a novel BiSI/MoS2 nanocomposite with enhanced visible-light driven photocatalytic performance

2018 ◽  
Vol 42 (22) ◽  
pp. 18236-18241 ◽  
Author(s):  
Samin Bargozideh ◽  
Mahboubeh Tasviri
Keyword(s):  
Visible Light ◽  
Photocatalytic Performance ◽  
Visible Light Driven ◽  
First Time

A BiSI/MoS2 nanocomposite was synthesized for the first time and used as a new efficient and stable visible light driven photocatalyst.

3D Au-decorated BiMoO6 nanosheet/TiO2 nanotube array heterostructure with enhanced UV and visible-light photocatalytic activity

2017 ◽  
Vol 5 (31) ◽  
pp. 16412-16421 ◽  
Author(s):  
Jingsheng Cai ◽  
Jianying Huang ◽  
Yuekun Lai
Keyword(s):  
Visible Light ◽  
Environmental Remediation ◽  
Solvothermal Method ◽  
Electrochemical Polymerization ◽  
Tio2 Nanotube Array ◽  
Nanotube Array ◽  
Visible Light Driven ◽  
First Time ◽  
Facile Solvothermal Method ◽  
Visible Light Photocatalytic

To develop an efficient visible-light-driven photocatalyst electrode for environmental remediation, a novel ternary nanocomposite of an Au-decorated Bi2MoO6 nanosheet/TiO2 nanotube array (NTA) heterojunction was successfully fabricated for the first time via a facile solvothermal method combined with mussel-inspired functional modification of electrochemical polymerization of dopamine.

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