Three-channel capillary NF membrane with PAMAM-MWCNT-embedded inner polyamide skin layer for heavy metals removal

Abstract

MWCNTs-PAMAM were incorporated into the polyamide layer of NF membranes and the prepared membranes showed good permeation and rejection performances.

A thin film nanocomposite membrane with pre-immobilized UiO-66-NH2 toward enhanced nanofiltration performance

“…Among various strategies, membrane separation technologies are gaining worldwide attention. 1,2 As a typical and most important technique, nanoltration (NF) presents excellent rejection capability of multivalent ions and low-molecular-weight organics, 3 and has been widely applied in water treatment processes, including dye separation, 4,5 heavy metal removal 6,7 and desalination. 8,9 Currently, most of the NF membranes are fabricated through interfacial polymerization between diamine aqueous and organic solutions containing acylchoride to constitute thin lm composite (TFC) membranes.…”

Novel thin‐film nanocomposite membrane with water‐soluble polyhydroxylated fullerene for the separation of Mg2+/Li+ aqueous solution

“…With respect to those C1s high‐resolution peaks, they could be splited into three status, which appeared at 284.6 ± 0.1, 286.0 ± 0.1 and 287.9 eV. In detail, the peak at 284.6 eV was resulted from CC and CH bonds, while the peak at 286.1 was induced by both CN bonds in the PIP structure and CO bonds in the PHF structure . After the introduction of the PHF, the peak area at 286.0 ± 0.1 was larger than those of the TFC membrane.…”

Carbon Nanotube-Incorporated Nanofibers for Immunosensor Preparation against CD36

“…Then, 2.5 mL of PAMAM G3 methanol solution was slowly added to the prepared suspension. After 24 h of reaction at 25 °C in a dark and continuous stirring environment, the MWCNT-PAMAM nanocomposite was obtained by precipitation at 13.000 rpm and washed four times with ultrapure water to remove unreacted PAMAM …”

“…After 24 h of reaction at 25 °C in a dark and continuous stirring environment, the MWCNT-PAMAM nanocomposite was obtained by precipitation at 13.000 rpm and washed four times with ultrapure water to remove unreacted PAMAM. 26 Preparation of PS/MWCNT-PAMAM Nanofibers. A PS/ MWCNT-PAMAM nanocomposite solution was prepared with 35% (wt %) PS and 0.4% (wt %) MWCNT-PAMAM in DMF, and then the nanocomposite solution was stirred at 50 °C overnight.…”