Preparation and characterization of thiol- and amino-functionalized polysilsesquioxane coated poly( p -phenylenetherephthal amide) fibers and their adsorption properties towards Hg(II)

Ionic liquid microemulsion‐mediated in situ thermosynthesis of poly(ionic liquid)s and their adsorption properties for Zn(II)

“…Nowadays, heavy metal contamination of wastewater is one of the foremost environmental concerns . Given the rapid development of modern industries, more and more wastewaters contain Cd(II), Zn(II), Cr(IV), Cu(II) or other heavy metal ions being released into the environment . These harmful heavy metal ions will cause serious harm to people's life since they can accumulate in organisms .…”

Amino- and Thiol- Polysilsesquioxane Simultaneously Coating on Poly(p-Phenylenetherephthal Amide) Fibers: Bifunctional Adsorbents for Hg(II)

“…It can be observed that the absorption peaks around 1,640 and 1,545 cm −1 in PPTA fiber, which correspond to the C = O stretching vibration of amide and C-N stretching vibration, respectively (Yang et al, 2011), were weakened after modifications and appeared red-shifted in PPTA-AM samples. The peak at 1,574 cm −1 attributed to the in-plane bending vibration absorption of -NH 2 (from APTES) (Mehdipouratae et al, 2013) was present in PPTA-PAPSQ (Wang et al, 2017) but absent in all PPTA-AM samples. This may be due to the interactions between the thiol groups in MPTES and the amino groups in APTES.…”

“…Preparation of PPTA-ECH and PPTA-APTES followed the method in our previous work (Xu et al, 2016; Wang et al, 2017). Then different molar ratios of APTES and MPTES (see Table 1) were dissolved in 150 mL DMSO and added to PPTA-APTES in the flask.…”

“…Attempts were made by our group to solve some of these issues. Two types of mono-functionalized fibrous adsorbents were prepared via the sol-gel condensation reactions (Wang et al, 2017). PPTA fibers were separately coated with amino-polysilsesquioxane and thiol-polysilsesquioxane.…”

N‐Heterocyclic Carbene‐Protected Ag Nanoparticles Immobilized on Polyacrylonitrile Fiber as Efficient Catalysts for a Three‐Component Coupling Reaction

“…[21] Recently,t he use of fibers such as polyacrylonitrile fiber (PANF), polypropylene fiber,a nd cotton fiber as support materials for adsorbents,m etal ion sensors, and catalysts has been reported. [22][23][24][25][26][27] Indeed, PANF is ap articularly promising support materialo wing to its inexpensive source, porous structure, and good stability.M oreover,t he PANF framework contains an abundance of -CN groups, which can be easily functionalized and immobilized with various moieties. [25,27] For example, previous studies have reported the immobilization of Ag complexes to afford PANF-supported Ag complexes.…”