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\begin{document}

\title{New and Simple Synthetic Strategy for 2D Ultra-microporous Aromatic
Framework for Selective Uranium Capture in Liquid}



\author[1]{Mudasir Ahmad}%
\author[2]{Jianquan  Ren}%
\author[3]{Mehraj-ud-din  Naik}%
\author[1]{Yabin Wang}%
\author[4]{Ajit Khosla}%
\author[1]{Qiuyu Zhang}%
\author[1]{Baoliang Zhang}%
\affil[1]{Northwestern Polytechnical University}%
\affil[2]{Affiliation not available}%
\affil[3]{Jazan University}%
\affil[4]{Xidian University}%


\vspace{-1em}



  
  \date{May 25, 2024}


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\begin{abstract}
Economical uranium adsorption from seawater remains a crucial task for
energy and environmental safety. Aiming for improving the mass transfer
rate of uranium adsorption. Herein, a novel 2D porous aromatic
framework(PAF) based on nucleophilic substitution of 2,5-dichloro
benzonitrile was synthesized, with an ordered prous structure, excellent
stability and selectivity of uranium extraction from seawater. PAF shows
excellent uranium adsorption capacity of 637 mg/g and 3.22 mg/g in
simulated and real seawater because of highly accessible pores on the
walls of open channels. In addition, benefiting from the
super-hydrophilicity due to the presence of amidoxime groups attributes
high selectivity and ultrafast kinetics with an uptake rate of 0.43\selectlanguage{ngerman}±0.03
mg/g.day and allowing half-saturation within 1.35±0.09 day. This
strategy demonstrates a potential of PAF not only in uranium trap but
also possess a power to monitor water quality. This technique can be
extended in other applications by sensible planning target ligands%
\end{abstract}\selectlanguage{ngerman}%



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