PMID- 38388055 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240222 IS - 1879-1344 (Electronic) IS - 0144-8617 (Linking) VI - 331 DP - 2024 May 1 TI - Facile fabrication of 3D Janus foams of electrospun cellulose nanofibers/rGO for high efficiency solar interface evaporation. PG - 121859 LID - S0144-8617(24)00085-7 [pii] LID - 10.1016/j.carbpol.2024.121859 [doi] AB - Solar-powered interfacial evaporation is one of the most efficient state-of-the-art technologies for producing clean water via desalination. Herein, we report a novel bio-based nanofibrous foam for high efficiency solar interface evaporation. To this end, a hybrid membrane of cellulose nanofibers/graphene oxide (GO) is first fabricated by electrospinning coupled with in situ layer-by-layer self-assembly technique. After that, the membrane is subjected to a foaming process in an aqueous NaBH(4), which effectively transforms the 2D membrane into a 3D foam. This structure can improve the photothermal conversion efficiency and also facilitate the water transport at the gas-water interface. In the meantime, the GO is converted to the reduced GO (rGO) with a higher light absorption efficiency(.) Finally, one side of the foam is hydrophobically modified via spray-coating with a fluorocarbon resin (FR) to obtain the Janus type 3D foam, namely FR@EC/rGO. The resultant 3D foam combines the functions of solar energy absorption in the upper layer and water pumping capability in the lower layer. It exhibits an extraordinary solar vapor conversion efficiency of 94.2 % and a fast evaporation rate of 1.83 kg m(-2) h(-1), showing high potential in future seawater desalination. CI - Copyright (c) 2024 Elsevier Ltd. All rights reserved. FAU - Sui, Zengyan AU - Sui Z AD - State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. FAU - Xue, Xiaolin AU - Xue X AD - State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. FAU - Wang, Qunhao AU - Wang Q AD - State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. FAU - Li, Mei AU - Li M AD - State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. FAU - Zou, Yuefei AU - Zou Y AD - State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China. FAU - Zhang, Wei AU - Zhang W AD - State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China; Advanced Polymer Materials Research Center of Sichuan University, Shishi 362700, China. Electronic address: weizhang@scu.edu.cn. FAU - Lu, Canhui AU - Lu C AD - State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China; Advanced Polymer Materials Research Center of Sichuan University, Shishi 362700, China. Electronic address: canhuilu@scu.edu.cn. LA - eng PT - Journal Article DEP - 20240126 PL - England TA - Carbohydr Polym JT - Carbohydrate polymers JID - 8307156 SB - IM OTO - NOTNLM OT - Cellulose nanofibers OT - Electrospinning OT - Foaming OT - Graphene OT - Seawater desalination COIS- Declaration of competing interest The authors declare no conflict of interest. EDAT- 2024/02/23 00:43 MHDA- 2024/02/23 00:44 CRDT- 2024/02/22 20:55 PHST- 2023/12/18 00:00 [received] PHST- 2024/01/19 00:00 [revised] PHST- 2024/01/22 00:00 [accepted] PHST- 2024/02/23 00:44 [medline] PHST- 2024/02/23 00:43 [pubmed] PHST- 2024/02/22 20:55 [entrez] AID - S0144-8617(24)00085-7 [pii] AID - 10.1016/j.carbpol.2024.121859 [doi] PST - ppublish SO - Carbohydr Polym. 2024 May 1;331:121859. doi: 10.1016/j.carbpol.2024.121859. Epub 2024 Jan 26.