A Novel Methodology for the Accelerated Desalination of Seawater Utilizing Up‐ and Down‐Conversion Phosphors
Solar evaporators are fabricated by coating coconut/agave fibers with graphene. Those ones are utilized to desalinate seawater brought from Vallarta beach, Mexico. The graphene‐based evaporators exposed to sunlight produce a maximum evaporation rate/efficiency of 2.13 kg m−2 h−1/83%. The addition of...
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Wiley-VCH
2025-02-01
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| Series: | Advanced Energy & Sustainability Research |
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| Online Access: | https://doi.org/10.1002/aesr.202400242 |
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| author | Ernesto Valadez‐Renteria Jorge Oliva Haggeo Desirena Christian Gomez‐Solis Vicente Rodriguez‐Gonzalez |
| author_facet | Ernesto Valadez‐Renteria Jorge Oliva Haggeo Desirena Christian Gomez‐Solis Vicente Rodriguez‐Gonzalez |
| author_sort | Ernesto Valadez‐Renteria |
| collection | DOAJ |
| description | Solar evaporators are fabricated by coating coconut/agave fibers with graphene. Those ones are utilized to desalinate seawater brought from Vallarta beach, Mexico. The graphene‐based evaporators exposed to sunlight produce a maximum evaporation rate/efficiency of 2.13 kg m−2 h−1/83%. The addition of Fe2O3 particles to the evaporators enhances the evaporation rate/efficiency up to 2.36 kg m−2 h−1/88.5%. The higher presence of oxygen vacancies defects in the evaporators made with Fe2O3 improves the absorption of light in the UV‐Vis range, which in turn, accelerates the desalination of seawater. Moreover, the performance of the solar evaporators is evaluated in absence of solar light. In this case, upconversion (UC) and downconversion (DC) phosphors are attached to the evaporators and such phosphors are excited with near‐infrared (980 nm) or ultraviolet (360 nm) light. Consequently, green light is produced by DC/UC, which is absorbed by the evaporators to be heated and the seawater evaporation is induced. The maximum evaporation rate/efficiency produced by the evaporators is 0.738 kg m−2 h−1/84.9%. In general, this research offers a novel strategy to continue the desalination of seawater in absence of solar light or in cloudy days. This can be useful to design new types of desalination plants without using complex/expensive filtration systems. |
| format | Article |
| id | doaj-art-16683a0c2f804e92b76587dff9031f5a |
| institution | Kabale University |
| issn | 2699-9412 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley-VCH |
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| series | Advanced Energy & Sustainability Research |
| spelling | doaj-art-16683a0c2f804e92b76587dff9031f5a2025-02-06T18:50:31ZengWiley-VCHAdvanced Energy & Sustainability Research2699-94122025-02-0162n/an/a10.1002/aesr.202400242A Novel Methodology for the Accelerated Desalination of Seawater Utilizing Up‐ and Down‐Conversion PhosphorsErnesto Valadez‐Renteria0Jorge Oliva1Haggeo Desirena2Christian Gomez‐Solis3Vicente Rodriguez‐Gonzalez4Tecnológico Nacional de México/ITS Zacatecas Occidente Sombrerete Zacatecas 99100 MéxicoCentro de Física Aplicada y Tecnología Avanzada Universidad Nacional Autónoma de México Boulevard Juriquilla 3001 Querétaro 76230 MéxicoCentro de Investigaciones en Óptica A.C. A.P. 1‐948 León Guanajuato 37150 MéxicoDivisión de Ciencias e Ingenierías Universidad de Guanajuato León Guanajuato 37150 MéxicoDivisión de Materiales Avanzados Instituto Potosino de Investigación Científica y Tecnológica A. C. San Luis Potosí SLP 78216 MéxicoSolar evaporators are fabricated by coating coconut/agave fibers with graphene. Those ones are utilized to desalinate seawater brought from Vallarta beach, Mexico. The graphene‐based evaporators exposed to sunlight produce a maximum evaporation rate/efficiency of 2.13 kg m−2 h−1/83%. The addition of Fe2O3 particles to the evaporators enhances the evaporation rate/efficiency up to 2.36 kg m−2 h−1/88.5%. The higher presence of oxygen vacancies defects in the evaporators made with Fe2O3 improves the absorption of light in the UV‐Vis range, which in turn, accelerates the desalination of seawater. Moreover, the performance of the solar evaporators is evaluated in absence of solar light. In this case, upconversion (UC) and downconversion (DC) phosphors are attached to the evaporators and such phosphors are excited with near‐infrared (980 nm) or ultraviolet (360 nm) light. Consequently, green light is produced by DC/UC, which is absorbed by the evaporators to be heated and the seawater evaporation is induced. The maximum evaporation rate/efficiency produced by the evaporators is 0.738 kg m−2 h−1/84.9%. In general, this research offers a novel strategy to continue the desalination of seawater in absence of solar light or in cloudy days. This can be useful to design new types of desalination plants without using complex/expensive filtration systems.https://doi.org/10.1002/aesr.202400242desalinationdownconversion emissiongraphenesolar evaporatorupconversion emission |
| spellingShingle | Ernesto Valadez‐Renteria Jorge Oliva Haggeo Desirena Christian Gomez‐Solis Vicente Rodriguez‐Gonzalez A Novel Methodology for the Accelerated Desalination of Seawater Utilizing Up‐ and Down‐Conversion Phosphors Advanced Energy & Sustainability Research desalination downconversion emission graphene solar evaporator upconversion emission |
| title | A Novel Methodology for the Accelerated Desalination of Seawater Utilizing Up‐ and Down‐Conversion Phosphors |
| title_full | A Novel Methodology for the Accelerated Desalination of Seawater Utilizing Up‐ and Down‐Conversion Phosphors |
| title_fullStr | A Novel Methodology for the Accelerated Desalination of Seawater Utilizing Up‐ and Down‐Conversion Phosphors |
| title_full_unstemmed | A Novel Methodology for the Accelerated Desalination of Seawater Utilizing Up‐ and Down‐Conversion Phosphors |
| title_short | A Novel Methodology for the Accelerated Desalination of Seawater Utilizing Up‐ and Down‐Conversion Phosphors |
| title_sort | novel methodology for the accelerated desalination of seawater utilizing up and down conversion phosphors |
| topic | desalination downconversion emission graphene solar evaporator upconversion emission |
| url | https://doi.org/10.1002/aesr.202400242 |
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