Blow spinning of pre–acid-activated polyamidoxime nanofibers for efficient uranium adsorption from seawater

Uranium extraction from seawater: material design, emerging technologies and marine engineering

“…Incorporation of antimicrobial components that can actively kill the bacteria stained on the surface of the material, or inhibit the growth, reproduction and survival of bacteria into adsorbents is a common strategy for biofouling control, which is often referred to as an ''attacking'' strategy. In this regard, various antibacterial materials such as inorganic metal nanoparticles, [204][205][206][207][208][209] antibacterial antibiotics, 210 antimicrobial polymers, 127,128,140,[211][212][213][214][215][216][217][218][219][220][221][222] natural biological entities, 183,[223][224][225][226] antimicrobial enzymes 227 and photo-responsive antibacterial materials [228][229][230][231][232][233][234][235] have been introduced into uranium adsorbents to endow them with inherent antibacterial properties.…”

“…Therefore, much effort has been made towards developing CS-containing antibacterial adsorbents for UES. 128,[211][212][213]221 For example, a series of robust and antibiofouling PAO aerogels (labeled Anti-PAO) were synthesized by a simple cross-linking reaction of the polymers (Fig. 23A).…”

“…These microfiber adsorbents still suffer from relatively large diameters and small SAA. 120 The development of spinning technologies, including but not limited to electrospinning, 121,122 forcespinning 123 and solution blow spinning approaches, 124–129 has gained increasing attraction in recent years, providing reliable ways to produce fibers with diameters at nanometer levels and adsorbents with high SSA. Typically, electrospinning is a versatile method used to fabricate nanofiber mats in large quantities.…”

Mass Production of Polymer-Derived Ceramic Nanofibers through Solution Blow Spinning: Implications for Flexible Thermal Insulation and Protection

“…Solution blow spinning (SBS) technology offers a promising solution by utilizing air current as the continuous spinning motive. , Taylor cones can be generated by the pressed air current during the SBS process to control the formation of the nanofiber products. The SBS technique possesses several advantages for mass production, such as high spinning rate, continuous spinning process, and enhanced equipment safety. , Farias et al reported that the SBS preparation of porous carbon/silica nanofibers from polymer solutions consisted of polyvinylpyrrolidone (PVP), tetraethyl orthosilicate (TEOS), and ethanol. SBS spun carbon/silica fibers possessed a fine average diameter (233 ± 178 nm), a high specific surface area (364 m 2 /g), and a large pore volume (0.18 cm 3 /g).…”

The confinement effect of layered double hydroxides on intercalated pyromellitic acidic anions and highly selective uranium extraction from simulated seawater

“…14,15 Among these techniques, adsorption is regarded as the most effective method for uranium adsorption, owing to its simple operation, low cost and high efficiency. 16 Thus, various kinds of uranium adsorbents have been explored, such as carbon-based materials, 17,18 inorganic minerals, 19,20 polymers, 21,22 metal organic frameworks (MOFs), 23,24 covalent organic frameworks (COFs), 25,26 etc.…”