文献类型：期刊文献

英文题名：Nanocellulose hydrogel interface for dual-function solar evaporation and industrial black liquor treatment

作者：Wang, Xiaofa[1,3,4] Zhao, Mengke[1,4] Fang, Guigan[1] Liang, Long[1,2] Shao, Xinyi[1,4] Yuan, Tongqi[3] Wu, Ting[1,4]

第一作者：Wang, Xiaofa

通信作者：Fang, GG[1];Wu, T[1];Yuan, TQ[2]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[2]South China Univ Technol, State Key Lab Adv Papermaking & Paper Based Mat, Guangzhou 510640, Peoples R China;[3]Beijing Forestry Univ, Coll Mat Sci & Technol, State Key Lab Efficient Prod Forest Resources, Beijing Key Lab Lignocellulos Chem, Beijing 100083, Peoples R China;[4]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210037, Peoples R China

年份：2026

卷号：340

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20260219893210);Scopus(收录号：2-s2.0-105027139549);WOS:【SCI-EXPANDED(收录号:WOS:001667860800001)】；

基金：This work was financially supported by the State Key Laboratory of Advanced Papermaking and Paper-based Materials (South China Uni-versity of Technology) , No. 202311, the Foundation of the National Key Research and Development Program of China (Project No. 2023YFD2201903) and Yibin City Major Bamboo Industry Research and Development Project (YBZD202401) .

语种：英文

外文关键词：Interfacial evaporator; Hydrogel; Desalination

摘要：Solar-driven interfacial evaporation offers a sustainable approach to freshwater production via localized photothermal conversion, but challenges, including salt crystallization that hinders evaporation and relatively low evaporation efficiency, still remain. To address these limitations, a novel PCR hydrogel made of poly (vinyl alcohol) (PVA), cellulose nanocrystals (CNC), and reduced graphene oxide (RGO) was developed. The PVA/CNC framework constructs densely cross-linked pores and introduces hydrophilic functional groups, which effectively balance salt resistance and water supply, and the inclusion of RGO endows the evaporator with broad spectral absorption (250-2500 nm) and a high average light absorption of 95%. Notably, the presence of hydrophilic groups within the polymer network reduces the evaporation enthalpy of water, resulting in an evaporation rate of 1.83 kg m- 2 h- 1 using 3.5 wt% NaCl solution under 1 sun irradiation (1 kW m- 2). From the perspective of industrial application, the hydrogel also purified black liquor from pulp mill at an evaporation rate of 1.88 kg m- 2 h- 1. Such a composite hydrogel exhibits a high evaporation rate under elevated salt concentrations and industrial wastewater conditions while exhibiting exceptional fatigue resistance, offering a sustainable pathway for desalination of high-salinity seawater and purification of industrial wastewater.