Preparation, physicochemical properties and antimicrobial activity of η-modification of titanium(IV) oxide intercalated with poly(N-vinylcaprolactam)

Design of MFI Type Aluminum- and Titanium-Containing Zeolites

“…The maximum total acidity of NA/HZSM(12)-1 and NA/HZSM(25)-1 indicates the effect of NA in the composition of nanocomposites obtained by Method 1b on their acidic properties. According to [13,41] on the NA surface there are Lewis acid sites, enhancing the nearby Bronsted sites, provoking an increase in the selectivity for hydrocarbons in reactions proceeding via the redox mechanism.…”

“…NOT samples are considered mainly as a support [38] or promoter [39] for nitrous oxide decomposition. Antimicrobial activity of the samples with NOT with respect to bacteria Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Bacillus antracoides, and fungi Candida albicans is known, which is determined by both physicochemical properties of NOT modifications (the samples with NA prepared by hydrolysis of TiOSO 4 × xH 2 SO 4 × yH 2 O are most active with respect to Staphylococcus aureus, Escherichia coli, and Candida albicans [40], while the samples with η-phase (E) are most active with respect to Staphylococcus aureus [41,42]), and by the nature of bacteria and fungi. Photocatalytic and adsorption properties of NOT are conditioned by surface hydroxyl groups with high reaction activity, which are selfgenerated when contacting with water, which leads to high adsorption ability to extract Ni, Co, Sr, Zn, Ag, Cu, Hg, Cd, Tl, Pb, Mn, Rb, Cs, Sn, Cr, Sb, Al, V, As, P, Se, Te, Ta, U, and transuranic ions, regardless of the oxidation state, from aqueous systems, see, e.g., [43], and photocatalytic activity in an ultraviolet part of sunlight [44].…”