Fabrication of zonal thiol-functionalized silica nanofibers for removal of heavy metal ions from wastewater

Adsorbents Based on Electrospun Nanofibers

“…Compared with the traditional adsorbent such as activated carbon, zeolites, and silica gel, electrospun nanofibers are good candidates for heavy metal ion adsorption due to its large surface area, tailored pore structure, good interconnectivity of pores, and potential to incorporate active chemistry or functionality on nanoscale [62,63]. Moreover, recycle is of great importance in the field of water treatment; taking this aspect into consideration, the nanofiber-based adsorbents are more suitable compared with powdered nanoporous materials.…”

“…To increase the adsorption of heavy metals on nanofiber materials, the following methods have attracted the most attention: (1) utilizing polymers which contain a molecular functional group as resources to electrospinning, such as cellulose acetate (CA), silk fibroin (SF), wool keratin (WK), and PA-6 [15,[64][65][66][67]; (2) surface modification with functional group (the removal efficiency of heavy metal ions increases significantly after the adsorbents have been modified by functional group of -NH 2 , -SH, -SO 3 H, -COO , etc.) [35,62,68]; and (3) increasing the surface areas of nanofibers [31].…”

Reusable fluorocarbon-modified electrospun PDMS/PVDF nanofibrous membranes with excellent CO 2 absorption performance

“…Thus, various applications of 1-D electrospun nanofibres, including fuel cell electrodes [32,33], adsorption [34][35][36][37], sensors [38], electrolytes [39], battery separators [40] and bone regeneration [41,42], have been investigated in the literature. One-dimensional electrospun nanofibrous membranes demonstrate great potential for CO 2 absorption in membrane contactor applications due to their high porosities and surface areas.…”

Polyvinylidene Fluoride/Siloxane Nanofibrous Membranes for Long‐Term Continuous CO2‐Capture with Large Absorption‐Flux Enhancement

“…Among these processes, the preparation of 1D nanofibers using an electrospinning process is well established because of its low cost and simplicity and the ease with which it can be scaled up. 1D electrospun nanofibers offer a wide range of applications in fuel-cell electrodes, [23] adsorptions, [24][25][26] sensors, [27] electrolytes, [28] battery separators, [29] and bone regeneration [30] because of their high surface area and porosities. To the best of our knowledge, no studies in the literature have discussed the preparation of electrospun nanofibers for application in CO 2 capture.…”