Release time:2025-01-24  Hits:

• Indexed by:Journal paper
• Correspondence Author:Jiang Gong
• Co-author:Zhikun Dai,Rui Gao,Qianqian Li,Mengting Qin,Jing Yang,Ran Niu
• Journal:Journal of Environmental Chemical Engineering
• Included Journals:SCI
• Discipline:Science
• First-Level Discipline:Chemistry
• Document Type:J
• Volume:12
• Issue:5
• Page Number:113580
• Key Words:Uranium extraction; Freshwater production; Interfacial solar evaporation; Radioactive waste; ZIF-8
• DOI number:10.1016/j.jece.2024.113580
• Date of Publication:2024-07-12
• Impact Factor:7.4
• Abstract:Interfacial solar evaporation, which utilizes the inexhaustible solar energy to desalinate freshwater, is highly promising to solve freshwater shortage. However, when dealing with polluted water such as radioactive uranium solution, the effective adsorption of uranium is critical to avoid environmental pollution. Herein, we report the facile construction of zeolitic imidazolate framework-8 (ZIF-8)/carbon nanotube (CNT)/gelatin evaporator via a simple dip coating method for simultaneous seawater desalination and uranium extraction. Benefiting from the incorporated CNT, the evaporator shows good light absorption and photothermal conversion. The evaporator reaches a high evaporation rate of 4.1 kg m−2 h−1 under 1 Sun irradiation, which surpasses many advanced evaporators. Furthermore, the nitrogen-containing ZIF-8 and gelatin enable the uranium adsorption through water transport and self-heating effect, since the water evaporation enables UO22+ diffusion and the photothermal effect facilitates UO22+ adsorption. Consequently, the equilibrium adsorption of UO22+ is reached within 60 min, with the high UO22+ adsorption capacity of 179.6 mg g−1. This work provides a new opportunity for simultaneous freshwater generation and uranium adsorption, which contributes to achieving carbon neutrality and uranium adsorption.
• Links to published journals:https://doi.org/10.1016/j.jece.2024.113580