Porous Cationic Electrospun Fibers with Sufficient Adsorption Sites for Effective and Continuous 99TcO4− Uptake

Removal of radioactive technetium‐99 (99TcO4−) from water by effective adsorbents is highly desired but remains a challenge. The currently used resin adsorbents possess several obstacles, such as slow adsorption kinetics and low adsorption capacity. To address these issues, herein a type of fibrous adsorbent with porosity and hyper‐branched quaternary ammonium groups, namely porous cationic electrospun fibers (PCE fibers), is successfully prepared. PCE fibers can remove 97% of 99TcO4− within 1 min and the equilibrium time of 99% removal is 20 min. The predicted maximum adsorption capacity toward the surrogate ReO4− can reach 826 mg g−1, which is higher than the state of art anion‐exchange resins and most of the other reported adsorbents. Furthermore, PCE fibers have good selectivity for ReO4− in the presence of competitive anions, and can retain ReO4− uptake under extreme conditions including high acid–base and gamma irradiation. Importantly, PCE fibrous adsorptive membrane is employed for dynamic ReO4− removal from simulated Hanford LAW stream with a processing capacity of 600 kg simulated stream per kilogram PCE fibers. The excellent performance highlights the advantages of PCE fibers over traditional resins in technetium removal.

[1]  H. Yang,et al.  Functionalized Iron–Nitrogen–Carbon Electrocatalyst Provides a Reversible Electron Transfer Platform for Efficient Uranium Extraction from Seawater , 2021, Advanced materials.

[2]  Z. Chai,et al.  Task-Specific Tailored Cationic Polymeric Network with High Base-Resistance for Unprecedented 99TcO4– Cleanup from Alkaline Nuclear Waste , 2021, ACS central science.

[3]  Wenqin Zhang,et al.  Ionic microenvironment constructed in quaternary ammonium modified polyacrylonitrile fiber for efficient CO2 fixation , 2021, Journal of CO2 Utilization.

[4]  Long Zhao,et al.  Radiation-induced surface modification of silanized silica with n-alkyl-imidazolium ionic liquids and their applications for the removal of ReO4− as an analogue for TcO4− , 2021 .

[5]  Z. Chai,et al.  Rational design of a cationic polymer network towards record high uptake of 99TcO4− in nuclear waste , 2021, Science China Chemistry.

[6]  Jianding Qiu,et al.  Synthesis of Imidazolium-Based Cationic Organic Polymer for Highly Efficient and Selective Removal of ReO4–/TcO4– , 2021 .

[7]  L. Chai,et al.  3D Cationic Polymeric Network Nanotrap for Efficient Collection of Perrhenate Anion from Wastewater. , 2021, Small.

[8]  Weijun Shan,et al.  Highly efficient and selective capture of TcO4− or ReO4− by imidazolium-based ionic liquid polymers , 2020 .

[9]  R. Zhou,et al.  99TcO4− removal from legacy defense nuclear waste by an alkaline-stable 2D cationic metal organic framework , 2020, Nature Communications.

[10]  Zhijie Zhang,et al.  Enhancing U(VI) adsorptive removal via amidoximed polyacrylonitrile nanofibers with hierarchical porous structure , 2020, Colloid and Polymer Science.

[11]  Z. Chai,et al.  Radiation Controllable Synthesis of Robust Covalent Organic Framework Conjugates for Efficient Dynamic Column Extraction of 99TcO4− , 2020 .

[12]  Dallas D. Reilly,et al.  Characterization of spent Purolite A530E resin with implications for long-term radioactive contaminant removal , 2020 .

[13]  Ce Wang,et al.  Preparation of MnO2 Loaded Hydrothermal Carbon-coated Electrospun PAN Fiber Membranes for Highly Efficient Adsorption and Separation of Cationic Dye , 2020, Chemical Research in Chinese Universities.

[14]  Long Zhao,et al.  Quaternary phosphonium modified cellulose microsphere adsorbent for 99Tc decontamination with ultra-high selectivity. , 2020, Journal of hazardous materials.

[15]  Yang Bai,et al.  Anchoring ZIF-67 particles on amidoximerized polyacrylonitrile fibers for radionuclide sequestration in wastewater and seawater. , 2020, Journal of hazardous materials.

[16]  Yi He,et al.  Efficient capture of Tc/Re(VII, IV) by a viologen-based organic polymer containing tetraaza macrocycles , 2020, Chemical Engineering Journal.

[17]  Zhi-Wei Liu,et al.  Evaluation of an Imidazolium-Based Porous Organic Polymer as Radioactive Waste Scavanger. , 2019, Environmental science & technology.

[18]  B. Ding,et al.  Multifunctional flexible membranes from sponge-like porous carbon nanofibers with high conductivity , 2019, Nature Communications.

[19]  Tian Wang,et al.  Synthesis of ZnO nanoparticle-anchored biochar composites for the selective removal of perrhenate, a surrogate for pertechnetate, from radioactive effluents. , 2019, Journal of hazardous materials.

[20]  Ling-Zhi Fu,et al.  Effect of gamma irradiation on ammonium ion production and ion exchange capacity of pyridinium-type anion exchange resin , 2019, Journal of Radioanalytical and Nuclear Chemistry.

[21]  Shuao Wang,et al.  Separation and Remediation of 99TcO4– from Aqueous Solutions , 2019, Chemistry of Materials.

[22]  J. Chen,et al.  Optimizing radionuclide sequestration in anion nanotraps with record pertechnetate sorption , 2019, Nature Communications.

[23]  Jing Chen,et al.  Anion-adaptive crystalline cationic material for 99TcO4− trapping , 2019, Nature Communications.

[24]  Xiu‐Ping Yan,et al.  Cationic Covalent Organic Nanosheets for Rapid and Selective Capture of Perrhenate: An Analogue of Radioactive Pertechnetate from Aqueous Solution. , 2019, Environmental science & technology.

[25]  Younan Xia,et al.  Electrospinning and Electrospun Nanofibers: Methods, Materials, and Applications. , 2019, Chemical reviews.

[26]  Liangliang Xu,et al.  Rational Design of Porous Nanofiber Adsorbent by Blow‐Spinning with Ultrahigh Uranium Recovery Capacity from Seawater , 2018, Advanced Functional Materials.

[27]  J. Chen,et al.  99TcO4− remediation by a cationic polymeric network , 2018, Nature Communications.

[28]  Ce Wang,et al.  Calcinable Polymer Membrane with Revivability for Efficient Oily‐Water Remediation , 2018, Advanced materials.

[29]  Kyriakos C. Stylianou,et al.  Porous Metal–Organic Framework@Polymer Beads for Iodine Capture and Recovery Using a Gas‐Sparged Column , 2018, Advanced Functional Materials.

[30]  Sheng Dai,et al.  Materials for the Recovery of Uranium from Seawater. , 2017, Chemical reviews.

[31]  O. Farha,et al.  Identifying the Recognition Site for Selective Trapping of 99TcO4- in a Hydrolytically Stable and Radiation Resistant Cationic Metal-Organic Framework. , 2017, Journal of the American Chemical Society.

[32]  Yuhan Sun,et al.  Ultrahigh adsorption capacity of anionic dyes with sharp selectivity through the cationic charged hybrid nanofibrous membranes , 2017 .

[33]  Xiao Feng,et al.  Roll‐to‐Roll Production of Metal‐Organic Framework Coatings for Particulate Matter Removal , 2017, Advanced materials.

[34]  J. Chen,et al.  Efficient and Selective Uptake of TcO4- by a Cationic Metal-Organic Framework Material with Open Ag+ Sites. , 2017, Environmental science & technology.

[35]  Chunhua Shen,et al.  13 C NMR and XPS characterization of anion adsorbent with quaternary ammonium groups prepared from rice straw, corn stalk and sugarcane bagasse , 2016 .

[36]  Yu Chen,et al.  Gold nanoparticles immobilized in hyperbranched polyethylenimine modified polyacrylonitrile fiber as highly efficient and recyclable heterogeneous catalysts for the reduction of 4-nitrophenol , 2013 .

[37]  G. Bergamaschi,et al.  99TcO4(-): selective recognition and trapping in aqueous solution. , 2012, Angewandte Chemie.

[38]  E Stride,et al.  Electrospinning versus fibre production methods: from specifics to technological convergence. , 2012, Chemical Society reviews.

[39]  D. Hobbs,et al.  Selectivity, Kinetics, and Efficiency of Reversible Anion Exchange with TcO4− in a Supertetrahedral Cationic Framework , 2012 .

[40]  Yanlong Wang,et al.  Efficient sequestration of radioactive 99TcO4- by a rare 3-fold interlocking cationic metal-organic framework: A combined batch experiments, pair distribution function, and crystallographic investigation , 2022 .