Advanced ion transfer materials in electro-driven membrane processes for sustainable ion-resource extraction and recovery

Zhao, Yan; Mamrol, Natalie; Tarpeh, William A.; Yang, Xing; Gao, Congjie; Bruggen, Bart Van der

doi:10.1016/j.pmatsci.2022.100958

Cited by 54 publications

(18 citation statements)

References 262 publications

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“…However, lower energy consumption and higher current efficiency were observed for the AHA stack (Figure S8e). The details are shown in Section S9. ,− As a result, the AHA stack was considered a more suitable membrane stack in the following experiments.…”

Section: Resultsmentioning

confidence: 99%

Recovery of Fluoride-Rich and Silica-Rich Wastewaters as Valuable Resources: A Resource Capture Ultrafiltration–Bipolar Membrane Electrodialysis-Based Closed-Loop Process

Qiu

Ren

Xia

et al. 2022

Environ. Sci. Technol.

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Traditional technologies such as precipitation and coagulation have been adopted for fluoride-rich and silica-rich wastewater treatment, respectively, but waste solid generation and low wastewater processing efficiency are still the looming concern. Efficient resource recovery technologies for different wastewater treatments are scarce for environment and industry sustainability. Herein, a resource capture ultrafiltration–bipolar membrane electrodialysis (RCUF-BMED) system was designed into a closed-loop process for simultaneous capture and recovery of fluoride and silica as sodium silicofluoride (Na2SiF6) from mixed fluoride-rich and silica-rich wastewaters, as well as achieving zero liquid discharge. This RCUF-BMED system comprised two key parts: (1) capture of fluoride and silica from two wastewaters using acid, and recovery of the Na2SiF6 using base by UF and (2) UF permeate conversion for acid/base and freshwater generation by BMED. With the optimized RCUF-BMED system, fluoride and silica can be selectively captured from wastewater with removal efficiencies higher than 99%. The Na2SiF6 recovery was around 72% with a high purity of 99.1%. The aging and cyclic experiments demonstrated the high stability and recyclability of the RCUF-BMED system. This RCUF-BMED system has successfully achieved the conversion of toxic fluoride and silica into valuable Na2SiF6 from mixed wastewaters, which shows great application potential in the industry–resource–environment nexus.

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Section: Resultsmentioning

confidence: 99%

Recovery of Fluoride-Rich and Silica-Rich Wastewaters as Valuable Resources: A Resource Capture Ultrafiltration–Bipolar Membrane Electrodialysis-Based Closed-Loop Process

Qiu

Ren

Xia

et al. 2022

Environ. Sci. Technol.

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“…Thus, it leads to a low separation efficiency and competitive bonding with coexisting ions in the solution. [ 49 ] Besides, the limited species and mechanisms of these active functional groups may hinder it in COF‐based membrane fabrication for target ion selectivity.…”

Section: Design Principles Of Cof‐based Membrane For Target Ion Selec...mentioning

confidence: 99%

Advanced Covalent Organic Framework‐Based Membranes for Recovery of Ionic Resources

Xia

et al. 2022

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metal ions have strong chemical toxicity including carcinogenicity, mutagenicity and teratogenicity, which can cause danger threat to the natural ecosystem and public health. [2] These heavy metal ions, unlike organic pollutants, are nonbiodegradable, highly soluble, and mobile, and remain in the environment. [3] This water contamination has further aggravated water scarcity, causing a new and unprecedented challenge for mankind. On the other hand, pure ions such as lithium, heavy metal ions, and radionuclides are important resources for industrial applications. [4] For example, lithium has rising demand for various applications especially the recent burgeoning of lithium-ion batteries for electric equipment and energy storage devices. [5] Consequently, the efficient recovery of these ion resources with high purity is becoming an urgent issue.Many technologies have been implemented for water treatment, among which membrane technology attracted much attention because of its low energy consumption, small carbon footprint, convenient operation, and good scalability. [6] Recently, novel membranes constructed from advanced materials such as porous carbons, [7] layered double hydroxides, [8] graphene, [9] molybdenum disulfide nanosheet, [10] and metal organic frameworks (MOFs) [11] have attracted extensive attention for their high surface area and porous structures. These unique physical structures have an excellent separation performance over conventional polymer membranes. [12] Recently, a new class of crystalline material-covalent organic frameworks (COFs) has been put forward and applied in membrane fabrication. COFs have crystalline porous network structures with regular and periodical assembly covalent bonds synthesized from reversible reactions, and were first reported by Yaghi and co-workers in 2005. [13] After that, various COF materials including bromo-based COFs, imine-based COFs, and amine-based COFs were reported. [14] The geometry of the COF depends on the size, symmetry, and connectivity of the connecting bonds, enabling a precise fine-tuning of the COF-based membrane channels to separate molecules or ions with different sizes. Varieties of synthesis methods have been developed to produce novel COFs, [15] such as the hydrothermal method, [16] the ion thermal method, [17] the mechanochemical method, [18] and the microwave method. [19] The unique structure endows COFs with superior properties like orderly assembled channels, tunable pore size and miscibility with organics, [20] Membrane technology has shown a viable potential in conversion of liquidwaste or high-salt streams to fresh waters and resources. However, the nonadjustability pore size of traditional membranes limits the application of ion capture due to their low selectivity for target ions. Recently, covalent organic frameworks ( COFs) have become a promising candidate for construction of advanced ion separation membranes for ion resource recovery due to their low density, large surface area, tunable channel structure, and tailored functionality...

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“…Hybrid plasmonic nanoparticle/polymer materials are one option to understand and control local molecular interactions at various temperatures during the polymer phase transition. Plasmonic heterostructures coated with pNIPAM polymers offer local temperature control using plasmonic heating, and can be combined with analyte tracking in single-molecule experiments. , There are a range of new redox-active polymer and other electro-driven membranes for chemical and biomolecular separations − that are ripe for study, especially because single-particle studies have shown that electrodes can reorganize at the nanoscale during electrochemical charging and discharging …”

Section: Using Stimuli-responsive Materials As Stationary Phases With...mentioning

confidence: 99%

Toward Protein Chromatography by Design: Stochastic Theory, Single-Molecule Parameter Control, and Stimuli-Responsive Materials

et al. 2022

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The rapid rise of biological pharmaceuticals motivates a need for both predictive models and better materials for separations. Physical chemists now have the tools to deliver on an effort started almost 70 years ago to describe chromatographic separations through statistical methods. When combined with new support materials, a statistical model would enable the design and control of the iterative combination of many single-analyte events to produce an ensemble chromatogram. Because single-analyte events can now be measured and modeled directly using the latest experimental and computational methods, our perspective describes the development and implementation of a stochastic chromatographic theory based on these methods. Further, we comment on the use of stimuli-responsive materials for future applications. We believe that responsive materials when combined with state-of-the-art single-molecule experiments and theory could lead to cost-effective methods for predictive protein separation.

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Advanced ion transfer materials in electro-driven membrane processes for sustainable ion-resource extraction and recovery

Cited by 54 publications

References 262 publications

Recovery of Fluoride-Rich and Silica-Rich Wastewaters as Valuable Resources: A Resource Capture Ultrafiltration–Bipolar Membrane Electrodialysis-Based Closed-Loop Process

Recovery of Fluoride-Rich and Silica-Rich Wastewaters as Valuable Resources: A Resource Capture Ultrafiltration–Bipolar Membrane Electrodialysis-Based Closed-Loop Process

Advanced Covalent Organic Framework‐Based Membranes for Recovery of Ionic Resources

Toward Protein Chromatography by Design: Stochastic Theory, Single-Molecule Parameter Control, and Stimuli-Responsive Materials

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