Preparation and performance of dopamine@boron nitride-carbon nanotubes/polyimide composite aerogel solar-driven evaporator

WANG Riyuan; CHEN Haoran; CHEN Fanglin; LI Tao; LU Hongdian; YANG Wei

doi:10.13801/j.cnki.fhclxb.20220410.001

Volume 40 Issue 3

Mar. 2023

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Article Navigation > Acta Materiae Compositae Sinica > 2023 > 40(3): 1494-1500

WANG Riyuan, CHEN Haoran, CHEN Fanglin, et al. Preparation and performance of dopamine@boron nitride-carbon nanotubes/polyimide composite aerogel solar-driven evaporator[J]. Acta Materiae Compositae Sinica, 2023, 40(3): 1494-1500. doi: 10.13801/j.cnki.fhclxb.20220410.001

Citation:

WANG Riyuan, CHEN Haoran, CHEN Fanglin, et al. Preparation and performance of dopamine@boron nitride-carbon nanotubes/polyimide composite aerogel solar-driven evaporator[J]. Acta Materiae Compositae Sinica, 2023, 40(3): 1494-1500. doi: 10.13801/j.cnki.fhclxb.20220410.001

Citation:

WANG Riyuan, CHEN Haoran, CHEN Fanglin, et al. Preparation and performance of dopamine@boron nitride-carbon nanotubes/polyimide composite aerogel solar-driven evaporator[J]. Acta Materiae Compositae Sinica, 2023, 40(3): 1494-1500. doi: 10.13801/j.cnki.fhclxb.20220410.001

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Preparation and performance of dopamine@boron nitride-carbon nanotubes/polyimide composite aerogel solar-driven evaporator

doi: 10.13801/j.cnki.fhclxb.20220410.001

School of Energy, Materials and Chemical Engineering, Hefei University, Hefei 230601, China

Received Date: 2022-03-11
Accepted Date: 2022-03-26
Rev Recd Date: 2022-03-26

Available Online: 2022-04-12

Publish Date: 2023-03-15

Abstract

Abstract

It is one of the important ways to produce fresh water through solar-driven evaporator. In order to improve the solar-driven evaporation performance of polyimide (PI) aerogel, PDA@BN-CNT/PI composite aerogel was prepared by adding dopamine-modified boron nitride (PDA@BN) and hydroxylated carbon nanotubes (CNT) through four-directional freeze-drying and imidization. The influence of PDA@BN and CNT on the morphology, structure, wettability and solar-driven evaporation of the aerogel were studied. The results indicate that PDA@BN-CNT/PI aerogel has good hydrophilicity and solar photothermal conversion performance. Moreover, it exhibits unique low bending tubular structure, which is conducive to promoting the transportation of water inside the aerogel and improving the performance of solar-driven evaporator. The aerogel exhibits high evaporation rate of 1.95 kg/(m²·h) under 2 kW/m² sun irradiation and excellent recycling performance, chemical stability and efficient wastewater purification ability.
- solar-driven evaporation,
- polyimide aerogel,
- boron nitride,
- carbon nanotubes,
- water purification
Long Abstrsct
Innovation Points

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References(26)

References

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