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A platform for research: civil engineering, architecture and urbanism
Biomass Hydrogel Solar-Driven Multifunctional Evaporator for Desalination, VOC Removal, and Sterilization
https://orcid.org/0000-0003-3855-1062
https://orcid.org/0000-0002-7567-9615
Solar-driven photothermal interfacial evaporation technology is currently perceived as one of the most green and effective freshwater production strategies available. However, when dealing with actual complex water bodies, it remains a challenge to combine steam generation with removing volatile organic compounds (VOCs) and inactivating bacteria at the same time to achieve multiple water purification effects. In this paper, a solar evaporator (SA/CCC/Cu2+) integrating photothermal and photocatalytic effects was successfully constructed by using a Cu2+ cross-linked biomass sodium alginate (SA) hydrogel as the basic skeleton and carbonized carboxymethyl chitosan (CCC) embedded internally as the photothermal material. During the solar evaporation process, the SA/CCC/Cu2+ evaporator successfully realized the separation of distilled water from bulk water containing VOCs, achieving the VOC removal efficiency of 96.77% while maintaining an evaporation rate of 2.54 kg m–2 h–1. In addition, it demonstrated remarkable capacity in inactivating Escherichia coli (E. coli), eliminating 100% of the bacteria within 40 min. With the rapid evaporation rate and impressive water purification effect, this design is anticipated to be a new path for solar-driven interfacial evaporative freshwater production.
Biomass Hydrogel Solar-Driven Multifunctional Evaporator for Desalination, VOC Removal, and Sterilization
https://orcid.org/0000-0003-3855-1062
https://orcid.org/0000-0002-7567-9615
Solar-driven photothermal interfacial evaporation technology is currently perceived as one of the most green and effective freshwater production strategies available. However, when dealing with actual complex water bodies, it remains a challenge to combine steam generation with removing volatile organic compounds (VOCs) and inactivating bacteria at the same time to achieve multiple water purification effects. In this paper, a solar evaporator (SA/CCC/Cu2+) integrating photothermal and photocatalytic effects was successfully constructed by using a Cu2+ cross-linked biomass sodium alginate (SA) hydrogel as the basic skeleton and carbonized carboxymethyl chitosan (CCC) embedded internally as the photothermal material. During the solar evaporation process, the SA/CCC/Cu2+ evaporator successfully realized the separation of distilled water from bulk water containing VOCs, achieving the VOC removal efficiency of 96.77% while maintaining an evaporation rate of 2.54 kg m–2 h–1. In addition, it demonstrated remarkable capacity in inactivating Escherichia coli (E. coli), eliminating 100% of the bacteria within 40 min. With the rapid evaporation rate and impressive water purification effect, this design is anticipated to be a new path for solar-driven interfacial evaporative freshwater production.
Biomass Hydrogel Solar-Driven Multifunctional Evaporator for Desalination, VOC Removal, and Sterilization
https://orcid.org/0000-0003-3855-1062
https://orcid.org/0000-0002-7567-9615
Solar-driven photothermal interfacial evaporation technology is currently perceived as one of the most green and effective freshwater production strategies available. However, when dealing with actual complex water bodies, it remains a challenge to combine steam generation with removing volatile organic compounds (VOCs) and inactivating bacteria at the same time to achieve multiple water purification effects. In this paper, a solar evaporator (SA/CCC/Cu2+) integrating photothermal and photocatalytic effects was successfully constructed by using a Cu2+ cross-linked biomass sodium alginate (SA) hydrogel as the basic skeleton and carbonized carboxymethyl chitosan (CCC) embedded internally as the photothermal material. During the solar evaporation process, the SA/CCC/Cu2+ evaporator successfully realized the separation of distilled water from bulk water containing VOCs, achieving the VOC removal efficiency of 96.77% while maintaining an evaporation rate of 2.54 kg m–2 h–1. In addition, it demonstrated remarkable capacity in inactivating Escherichia coli (E. coli), eliminating 100% of the bacteria within 40 min. With the rapid evaporation rate and impressive water purification effect, this design is anticipated to be a new path for solar-driven interfacial evaporative freshwater production.
Biomass Hydrogel Solar-Driven Multifunctional Evaporator for Desalination, VOC Removal, and Sterilization
An, Ning (author) / Ma, Mengyu (author) / Chen, Yi (author) / Wang, Zhining (author) / Li, Qian (author)
ACS ES&T Engineering ; 5 ; 732-742
2025-03-14
Article (Journal)
Electronic Resource
English
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