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Embedded solar-powered hydrogel evaporator for enhancing uranium extraction from seawater

文献类型：期刊论文

作者Wang, Zhenglin3,4,5; Li, Yuanyuan4,5; Liu F(刘峰)2; Shao, Huibo5; Yang, Ya'nan1; Wang, Liru4,5; Jin, Zifeng3,4,5; Li, Dan3,4,5; He, Xiaojun3,4,5; Chen, Nan3,4,5
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2025-02-01
卷号505页码:10
关键词Solar-thermal water evaporation Uranium adsorption Graphene oxide Poly(acrylamide oxime)
ISSN号1385-8947
DOI10.1016/j.cej.2024.159063
通讯作者Chen, Nan(gabechain@bit.edu.cn)
英文摘要Compared to the 6.08 million tons of uranium found on land, the oceans contain a staggering 4.5 billion tons, offering nearly limitless potential fuel for the nuclear industry. Extracting the meager 1/3 billionth concentration of uranium from seawater is crucial yet immensely challenging. This study utilized a method involving reduced graphene oxide, polyvinyl alcohol, and poly(acrylamide oxime) (rGO/PVA/PAO) co-gelation to create an embedded solar-driven hydrogel evaporator (GPPH). The rGO hydrogel acted as a photothermal material, while the PVA/PAO (PP) hydrogel served as both the evaporator's water source and uranium adsorbent. The highly porous and hydrophilic PP hydrogel exhibited a uranium adsorption capacity of 1289 mg g- 1 m U /m PAO in 64 ppm U-spiked simulated seawater. Under solar radiation, the evaporation facilitated by the rGO hydrogel accelerated uranium ion diffusion in the hydrogel, further elevating the uranium adsorption capacity to a remarkable 56.7 %, or 2019 mg g- 1 mU/mPAO, surpassing most PAO-based uranium adsorbents. Additionally, due to the high water transport rate and water content of the polypropylene hydrogel, coupled with low evaporation enthalpy and superior structural design, the GPPH evaporator achieved a solar thermal evaporation rate of 2.85 kg m- 2 h- 1 , significantly outperforming the 1.9 kg m- 2 h- 1 of the rGO hydrogel.
分类号一类
WOS关键词WATER ; EFFICIENT ; ACID ; REMOVAL ; ENHANCEMENT
资助项目Hebei Natural Science Foundation[B2023105029] ; Natural Science Foundation of Beijing Municipality[2222075] ; National Natural Science Foundation of China[22279010] ; National Natural Science Foundation of China[21671020] ; National Natural Science Foundation of China[51673026] ; Analysis & Testing Center, Beijing Institute of Technology
WOS研究方向Engineering
语种英语
WOS记录号WOS:001407567000001
资助机构Hebei Natural Science Foundation ; Natural Science Foundation of Beijing Municipality ; National Natural Science Foundation of China ; Analysis & Testing Center, Beijing Institute of Technology
其他责任者Chen, Nan
源URL[http://dspace.imech.ac.cn/handle/311007/98288]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Harbin Inst Technol Weihai, Sch Mat Sci & Engn, Weihai 264209, Peoples R China
2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
3.Beijing Inst Technol, Tangshan Res Inst, Tangshan 063000, Peoples R China;
4.Beijing Inst Technol, Yangtze Delta Reg Acad, Jiaxing 314019, Peoples R China;
5.Beijing Inst Technol, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci, Sch Chem & Chem Engn,Minist Educ China, Beijing 100081, Peoples R China;
推荐引用方式
GB/T 7714		 Wang, Zhenglin,Li, Yuanyuan,Liu F,et al. Embedded solar-powered hydrogel evaporator for enhancing uranium extraction from seawater[J]. CHEMICAL ENGINEERING JOURNAL,2025,505:10.
APA Wang, Zhenglin.,Li, Yuanyuan.,刘峰.,Shao, Huibo.,Yang, Ya'nan.,...&Chen, Nan.(2025).Embedded solar-powered hydrogel evaporator for enhancing uranium extraction from seawater.CHEMICAL ENGINEERING JOURNAL,505,10.
MLA Wang, Zhenglin,et al."Embedded solar-powered hydrogel evaporator for enhancing uranium extraction from seawater".CHEMICAL ENGINEERING JOURNAL 505(2025):10.

入库方式： OAI收割

来源：力学研究所

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