Water-phase synthesis of nano-hierarchical porous metal–organic frameworks for removal of uranium (VI) from aqueous solution

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta Pub Date : 2025-03-01 DOI:10.1016/j.ica.2025.122623

Kai Zheng , Kaikai Zhao , Weibiao Guo , Xuquan Liu , Yu Liang , Kuan Liang , Qianjun Deng , Hongxia Xi , Pengfei Yang , Xuejiao Sun , Chongxiong Duan

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引用次数: 0

Abstract

With the increasing reliance on nuclear energy and the potential environmental release of uranium radionuclides, public concern regarding uranium pollution has steadily grown. Metal-organic frameworks (MOFs), known for their abundant active sites and unique porous structures, exhibit significant promise in addressing uranium-related challenges. In this study, a nano-hierarchical porous structure of Cu-BTC (NH-Cu-BTC) was synthesized at room temperature and atmospheric pressure, utilizing N,N-dimethylethylenediamine as a templating agent in the aqueous phase. The impact of activation on the porosity characteristics of NH-Cu-BTC was investigated. The as-synthesized NH-Cu-BTC possessed micropores, mesopores, and macropores, with crystal sizes approximately 150 nm. Through simulation calculations, the electrostatic potential and orbital energies of the templating agent molecule were analyzed to elucidate the synthesis mechanism. Various factors influencing the adsorption of uranium (VI) by NH-Cu-BTC, including pH, contact time, and temperature, were explored, and the underlying adsorption mechanisms were elaborated. Compared to C-Cu-BTC, NH-Cu-BTC exhibited a 32.8 % enhancement in its adsorption capacity for uranium (VI). This investigation furnishes precious comprehension regarding the fabrication and utilization of porous substances, proffering a novel tactic for proficiently eliminating uranium (VI) from aqueous mediums.

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.