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Building Polyoxometalate 'Nano-Walls' on 3D Porous Carbon Paper: A Solar Steam Generation System for Water Purification
- Source :
- Chemistry (Weinheim an der Bergstrasse, Germany). 26(35)
- Publication Year :
- 2020
-
Abstract
- As promising fresh-water purification devices, solar steam generation systems have attracted significant attention recently. However, in practice, the approach often suffers from a poor solar energy conversion efficiency and a low water production rate due to poor material selection and inefficient microscopic structure design. Here, we fabricate an efficient solar steam generation system by "building" polyoxometalate "nano-walls" on rice paper-derived three-dimensional porous carbon paper. In this solar steam generation system, the height of the vertically aligned CoP4 Mo6 "nano-walls" range from 100 to 150 nm with thicknesses about 15 to 25 nm. Under 1 sun irradiation (1 sun = 1 kW m-2 ), the surface temperature increases from 29 to 50 °C in a short time with a solar thermal conversion efficiency achieving 92.8 %. The stability and durability of this solar steam generation system, which withstands fifteen cycle continuous tests, also offer good prospects. Its attractive solar energy conversion performance originates from the intense sunlight absorption and high conversion ability of the CoP4 Mo6 "nano-walls", as well as extremely promising heat localization and water transportation properties of the three-dimensional porous carbon paper. This solar steam generation system, which has produced some inspiring results, is employed for seawater desalination and for purification of water polluted with organic dyes.
- Subjects :
- Water transport
010405 organic chemistry
business.industry
Chemistry
Organic Chemistry
Energy conversion efficiency
Portable water purification
General Chemistry
010402 general chemistry
01 natural sciences
Catalysis
0104 chemical sciences
Material selection
Nano
Thermal
Energy transformation
Process engineering
business
Absorption (electromagnetic radiation)
Subjects
Details
- ISSN :
- 15213765
- Volume :
- 26
- Issue :
- 35
- Database :
- OpenAIRE
- Journal :
- Chemistry (Weinheim an der Bergstrasse, Germany)
- Accession number :
- edsair.doi.dedup.....c8889d1694074ec704db26a5473e66f6