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Hierarchical porous structure design and water activation in hydrogels containing hyperbranched peach gum polysaccharide for efficient solar water evaporation.
Li, Mingxing; Liang, Xiaolan; Xie, Peiying; Zhang, Chunzhi; Chen, Yunhua; Wang, Chaoyang; Zhou, Li; Wang, Tao; Liu, Hongxia.
Afiliación
  • Li M; Guangxi Key Laboratory of Optical and Electronic Materials and Devices, and College of Material Science & Engineering, Guilin University of Technology, Guilin 541004, China.
  • Liang X; Guangxi Key Laboratory of Optical and Electronic Materials and Devices, and College of Material Science & Engineering, Guilin University of Technology, Guilin 541004, China.
  • Xie P; Guangxi Key Laboratory of Optical and Electronic Materials and Devices, and College of Material Science & Engineering, Guilin University of Technology, Guilin 541004, China.
  • Zhang C; Guangxi Key Laboratory of Optical and Electronic Materials and Devices, and College of Material Science & Engineering, Guilin University of Technology, Guilin 541004, China.
  • Chen Y; School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: yhchen0723@gmail.com.
  • Wang C; School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China.
  • Zhou L; Guangxi Key Laboratory of Optical and Electronic Materials and Devices, and College of Material Science & Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Colleges and Universities Key Laboratory of Natural and Biomedical Polymer Materials, College of Material Science
  • Wang T; School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China.
  • Liu H; Guangxi Key Laboratory of Optical and Electronic Materials and Devices, and College of Material Science & Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Colleges and Universities Key Laboratory of Natural and Biomedical Polymer Materials, College of Material Science
Int J Biol Macromol ; 278(Pt 3): 134455, 2024 Oct.
Article en En | MEDLINE | ID: mdl-39168201
ABSTRACT
Solar-powered interfacial evaporation is a developing and sustainable technique increasingly utilized in desalination and wastewater purification. This technology involves the creation of cellulose nanofiber (CNF)/polylactic acid (PLA) composite aerogels through the Pickering emulsion approach. Self-floating aero-hydrogel (E-VGP) with a hierarchical porous structure was formed on a viscous mixture containing polyvinyl alcohol (PVA), peach gum polysaccharide (PGP), and polypyrrole (PPy) via an in-situ polymerization process. Furthermore, by modifying the hydrolysis time of PGP with a hyperbranched polyhydroxy structure, VGP hybrid hydrogels of varying microscopic molecular sizes were produced. Additionally, solar vapor generators (SVG) with diverse macroscopic structures were fabricated using molds. The V8G4-12hP0.2 hybrid hydrogel, synthesized using PGP hydrolyzed for 12 h, exhibited an evaporation enthalpy of water at 1204 J g-1. This capacity effectively activates water and enables low enthalpy evaporation. Conversely, the macrostructural design allows the cylindrical rod raised sundial-shaped structure of SVG3 to possess an expanded evaporation area, minimize energy loss, and even harness additional energy from its nonradiative side. Consequently, this micro-macrostructural design enables SVG3 to attain an exceptionally high evaporation rate of 3.13 kg m-2 h-1 under 1 Sun exposure. Moreover, SVG3 demonstrates robust water purification abilities, suggesting significant potential for application in both desalination and industrial wastewater treatment.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polisacáridos / Agua / Hidrogeles / Gomas de Plantas Idioma: En Revista: Int J Biol Macromol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polisacáridos / Agua / Hidrogeles / Gomas de Plantas Idioma: En Revista: Int J Biol Macromol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos