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MOF-Derived nanoarchitectured carbons in wood sponge enable solar-driven pumping for high-efficiency soil water extraction

Journal Article


Abstract


  • Soil-water extraction based on interfacial solar-thermal technology is a promising strategy to provide affordable freshwater in remote and poor inland areas. A double-layer solar evaporator is prepared on a wood sponge with a one-step brush-printing coating of zeolitic imidazolate framework-8 (ZIF-8)-derived nanostructured carbon. In this typical architecture, the ZIF-8-derived carbon coating inherits the original porous, dodecahedral framework, thus forming a chapped, rough morphology that synergistically promotes photothermal conversion. Wood sponges manufactured from raw wood offer privileged water-extraction advantages, including an abundance of super hydrophilic channels that ensure efficient bulk-water pumping and steam release. The double-layer solar evaporator shows high sunlight absorbance (���97.8 %), low thermal conductivity (0.12 W m���1 K���1), stronger capillary force, and rapid water transport (30 cm min���1). Consequently, apparent pure water-evaporation and soil water-extraction rates reach 1.42 and 0.57 kg m-2h���1 under a one-sun light intensity, respectively. Therefore, the ZIF-8-based wood sponge can efficiently achieve interfacial evaporation and soil water extraction, providing a novel pathway for obtaining clean drinking water in arid inland areas.

Publication Date


  • 2023

Citation


  • Meng, T., Li, Z., Wan, Z., Zhang, J., Wang, L., Shi, K., . . . Xu, X. (2023). MOF-Derived nanoarchitectured carbons in wood sponge enable solar-driven pumping for high-efficiency soil water extraction. Chemical Engineering Journal, 452. doi:10.1016/j.cej.2022.139193

Scopus Eid


  • 2-s2.0-85139369923

Web Of Science Accession Number


Volume


  • 452

Issue


Place Of Publication


Abstract


  • Soil-water extraction based on interfacial solar-thermal technology is a promising strategy to provide affordable freshwater in remote and poor inland areas. A double-layer solar evaporator is prepared on a wood sponge with a one-step brush-printing coating of zeolitic imidazolate framework-8 (ZIF-8)-derived nanostructured carbon. In this typical architecture, the ZIF-8-derived carbon coating inherits the original porous, dodecahedral framework, thus forming a chapped, rough morphology that synergistically promotes photothermal conversion. Wood sponges manufactured from raw wood offer privileged water-extraction advantages, including an abundance of super hydrophilic channels that ensure efficient bulk-water pumping and steam release. The double-layer solar evaporator shows high sunlight absorbance (���97.8 %), low thermal conductivity (0.12 W m���1 K���1), stronger capillary force, and rapid water transport (30 cm min���1). Consequently, apparent pure water-evaporation and soil water-extraction rates reach 1.42 and 0.57 kg m-2h���1 under a one-sun light intensity, respectively. Therefore, the ZIF-8-based wood sponge can efficiently achieve interfacial evaporation and soil water extraction, providing a novel pathway for obtaining clean drinking water in arid inland areas.

Publication Date


  • 2023

Citation


  • Meng, T., Li, Z., Wan, Z., Zhang, J., Wang, L., Shi, K., . . . Xu, X. (2023). MOF-Derived nanoarchitectured carbons in wood sponge enable solar-driven pumping for high-efficiency soil water extraction. Chemical Engineering Journal, 452. doi:10.1016/j.cej.2022.139193

Scopus Eid


  • 2-s2.0-85139369923

Web Of Science Accession Number


Volume


  • 452

Issue


Place Of Publication