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Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system

Solar distillation is emerging as an environmentally friendly and energy-effective technology for clean water generation. However, bulk water heating and the possibly complex composition of water matrices of source water could undermine the system efficacy. In this study, an interfacial evaporation...

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Autores principales: Chen, Kuan-Yu, Lai, Webber Wei-Po, Wang, Hui-Ju, Lin, Cheng-Chieh, Chen, Chun-Wei, Lin, Angela Yu-Chen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034270/
https://www.ncbi.nlm.nih.gov/pubmed/35480454
http://dx.doi.org/10.1039/d1ra02185k
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author Chen, Kuan-Yu
Lai, Webber Wei-Po
Wang, Hui-Ju
Lin, Cheng-Chieh
Chen, Chun-Wei
Lin, Angela Yu-Chen
author_facet Chen, Kuan-Yu
Lai, Webber Wei-Po
Wang, Hui-Ju
Lin, Cheng-Chieh
Chen, Chun-Wei
Lin, Angela Yu-Chen
author_sort Chen, Kuan-Yu
collection PubMed
description Solar distillation is emerging as an environmentally friendly and energy-effective technology for clean water generation. However, bulk water heating and the possibly complex composition of water matrices of source water could undermine the system efficacy. In this study, an interfacial evaporation device consisting of activated carbon combined with P25 TiO(2) as the top layer and polyethylene foam as the bottom layer (AC-P25/foam device) was established. With the excellent optical absorbance of AC and the heat localization effect contributed by the PE foam, the evaporation rate (r(evp)) of the device (r(evp) = 2.1 kg m(−2) h(−1)) was improved by 209% and 71% compared with that of the water-only (r(evp) = 0.68 kg m(−2) h(−1)) and conventional evaporation (i.e., submerged AC-P25) systems (r(evp) = 1.23 kg m(−2) h(−1)), respectively. The reusability test showed the stable evaporation performance of AC-P25/foam within 7 cycles; this interfacial evaporation was also found to be less affected by suspended solids in water due to a reduction in the influence of light scattering. The AC-P25/foam device not only possessed photothermal ability for water distillation but was also able to prevent enrichment of volatile organic compounds (i.e., phenol) with ∼95% removal efficiency through adsorption and photocatalytic reactions under illumination. Additionally, an outdoor solar distillation test performed with synthetic saline water demonstrated the desalination ability of the AC-P25/foam device, with the concentrations of all ions in the distilled water ≤3.5 mg L(−1), far below the drinking water guideline value provided by the World Health Organization. The materials of the AC-P25/foam photothermal device are readily available and easily fabricated, showing the practical feasibility of this device for clean water generation.
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spelling pubmed-90342702022-04-26 Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system Chen, Kuan-Yu Lai, Webber Wei-Po Wang, Hui-Ju Lin, Cheng-Chieh Chen, Chun-Wei Lin, Angela Yu-Chen RSC Adv Chemistry Solar distillation is emerging as an environmentally friendly and energy-effective technology for clean water generation. However, bulk water heating and the possibly complex composition of water matrices of source water could undermine the system efficacy. In this study, an interfacial evaporation device consisting of activated carbon combined with P25 TiO(2) as the top layer and polyethylene foam as the bottom layer (AC-P25/foam device) was established. With the excellent optical absorbance of AC and the heat localization effect contributed by the PE foam, the evaporation rate (r(evp)) of the device (r(evp) = 2.1 kg m(−2) h(−1)) was improved by 209% and 71% compared with that of the water-only (r(evp) = 0.68 kg m(−2) h(−1)) and conventional evaporation (i.e., submerged AC-P25) systems (r(evp) = 1.23 kg m(−2) h(−1)), respectively. The reusability test showed the stable evaporation performance of AC-P25/foam within 7 cycles; this interfacial evaporation was also found to be less affected by suspended solids in water due to a reduction in the influence of light scattering. The AC-P25/foam device not only possessed photothermal ability for water distillation but was also able to prevent enrichment of volatile organic compounds (i.e., phenol) with ∼95% removal efficiency through adsorption and photocatalytic reactions under illumination. Additionally, an outdoor solar distillation test performed with synthetic saline water demonstrated the desalination ability of the AC-P25/foam device, with the concentrations of all ions in the distilled water ≤3.5 mg L(−1), far below the drinking water guideline value provided by the World Health Organization. The materials of the AC-P25/foam photothermal device are readily available and easily fabricated, showing the practical feasibility of this device for clean water generation. The Royal Society of Chemistry 2021-06-29 /pmc/articles/PMC9034270/ /pubmed/35480454 http://dx.doi.org/10.1039/d1ra02185k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Chen, Kuan-Yu
Lai, Webber Wei-Po
Wang, Hui-Ju
Lin, Cheng-Chieh
Chen, Chun-Wei
Lin, Angela Yu-Chen
Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system
title Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system
title_full Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system
title_fullStr Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system
title_full_unstemmed Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system
title_short Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system
title_sort clean water generation through a multifunctional activated carbon-tio(2) interfacial solar distillation system
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034270/
https://www.ncbi.nlm.nih.gov/pubmed/35480454
http://dx.doi.org/10.1039/d1ra02185k
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