Synthesis and anti-microbial investigations of CZ6 composite reinforced CA mixed matrix membranes

Tailoring Zeolite-Composite (ZC) Impregnated Thermally Endured Nonporous Cellulose Acetate Membranes for Potential Gas Separation and Antibacterial Performances

“…In the pure CA spectra, peaks corresponding to distinct functional groups associated with CA structure are present: wide bands at 3489, 2928, 1728, and 1435 cm -1 represent stretching vibrations of O-H, C-H, C=O and C-H bending respectively. Another peak at 1368 cm -1 is standing for C-O stretching of esters [12,19]. Wagging and rocking mode in the CA membrane is described by the peak at 1219 cm -1 and another strong peak at 1021 cm -1 specifies C-O-C i.e., stretching of the ether group.…”

“…FTIR spectra of zeolite-A have strong and broad peaks. Due to the hydroxyl group a large number of peaks appear between 3000-3700 cm -1 [18,19]. The characteristic peaks allocated at 3340 cm -1 and 1564 cm -1 in zeolite spectra presented in graph 6(a) indicate O-H (H-stretching) and 1392 cm -1 is ascribed to Si-O stretching vibrations.…”

Manganese spinel ferrites‐composite nanotubes impregnated thermally endured cellulose acetate membranes for superior desalination application

“…The increasing MSF content ratios from 3 to 4 wt.% tend to further shrink the pores size that reaches to approximately 5 nm in MSF14 membrane with 4 wt.% composite filler loading level as depicted in Figure 5d,e. The functionalized nanofiller provides more reactive sites resulting in increased number of developed networks positions between the polymer and the composite itself causing not only immobilization of CA chains but also the reduction in pores size 46 …”

“…MSF14 with only 4 wt.% loading of MSF appears 8% more thermally stable than MSF00, the unloaded one. The mass loss is attributed to the evaporation of both adsorbed water content left in the membranes and APTMS participating as a connecting bridge between host polymeric chains and inorganic nanoadditives 46 . The second temperature span ending at 380°C is the region where maximum degradation of the membranes takes place.…”

Ferrite-SCNTs Composite (ZFS) Embedded Nanostructured Cellulose Acetate Membranes - A Promising Sulphate Salts Rejecting Tool. Synthesis and Characterizations

“…Inorganic materials include TiO2, Fe2O3, SiO2, ZnO, CuO, metals Cu, Ag and carbon-based materials like carbon nanotubes (CNTs) etc. [25,26]. Yet, CNTs are extolled in separation and purification engineering because of their marvellous water transport aptitude, large surface area, higher aspect ratio, ease of functionalization, mechanical properties [23,27].…”