Enhanced Photothermal Conversion through 2D/0D Nano-Heterojunction Engineering for Highly Efficient Solar Desalination
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932248" target="_blank" >RIV/60461373:22310/25:43932248 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/abs/10.1021/jacs.5c07491" target="_blank" >https://pubs.acs.org/doi/abs/10.1021/jacs.5c07491</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jacs.5c07491" target="_blank" >10.1021/jacs.5c07491</a>
Alternative languages
Result language
angličtina
Original language name
Enhanced Photothermal Conversion through 2D/0D Nano-Heterojunction Engineering for Highly Efficient Solar Desalination
Original language description
Two-dimensional (2D) materials are promising candidates for solar-driven desalination. However, conventional photothermal 2D materials like transition metal carbides and nitrides (MXenes) as well as transition metal dichalcogenides (TMDs) suffer from major limitations such as their complex synthesis and low photothermal conversion efficiency. In contrast, metal phosphorus trichalcogenides (MPCh3) do not display the same drawbacks and possess widely tunable bandgaps (1.2-3.5 eV), making them ideal candidates for solar desalination. Moreover, their properties and applications related to light-matter interactions can be further enhanced by coupling with other low-dimensional nanostructures, tailoring hybrid van der Waals heterostructures of mixed dimensionality. Herein, we report the synthesis of FePS3 nanosheets/carbon nanodots (CNDs) 2D/0D nanoheterojunctions and their photothermal response when integrated into a 3D photothermal evaporator. These nanoheterojunctions exhibited high photothermal conversion performance, with an average absorbance of 90.6% from the UV to the NIR and a temperature increase of 42 degrees C over the blank control under 1 sun illumination for 300 s. A high water evaporation rate of 1.68 kg m-2 h-1 was observed under the same condition. Photothermal conversion and water evaporation experiments, along with femtosecond transient absorption spectroscopy (fs-TAS), photoluminescence (PL) analysis, and finite-difference time-domain (FDTD) simulations, revealed that the incorporation of CNDs and formation of the nanoheterojunction synergistically enhance localized heating and light absorption, improve trapping efficiency, and optimize nonradiative transition pathways. This study demonstrates the disruptive potential of the rational design of high-performance 2D material hybrids through MPCh3-based nanoheterojunction engineering, unveiling its transformative capability for use in solar desalination and photothermal technologies.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the American Chemical Society
ISSN
0002-7863
e-ISSN
1520-5126
Volume of the periodical
147
Issue of the periodical within the volume
29
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
25750-25760
UT code for WoS article
001527403500001
EID of the result in the Scopus database
2-s2.0-105010336846