Preparation of transparent mesoporous silica films by a rapid solvent evaporation method

Ishikawa, Hayato; Kikuchi, Takaaki

doi:10.1039/a802265h

Cited by 24 publications

(3 citation statements)

References 27 publications

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“…The preparation of films of these materials has been accomplished primarily over non-porous substrates (e.g., mica [3], glass [4,5], silicon wafers [6,7]), which are not suitable as membrane supports. The first attempt to grow mesostructured silica films on a support was reported in 1996 by Yang et al [3], who carried out the hydrothermal treatment of a mica support immersed in an aqueous-acid-surfactant mixture.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of MCM-48 tubular membranes

Iglesia

Pedernera

Mallada

et al. 2006

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of MCM-48 tubular membranes

Iglesia

Pedernera

Mallada

et al. 2006

Journal of Membrane Science

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“…Figure shows the collected FTIR spectra of the untreated cotton and cotton–MBA–Cl. In the spectrum of cotton–MBA–Cl, the peaks at 2926 and 2854 cm –1 (corresponding to the symmetric and asymmetric stretching vibration of the C–H bonds on −CH 2 –CH 2 −) − became stronger because the −CHCH– double bonds in MBA became −CH 2 CH 2 – after it was grafted onto cotton (as we can see in Figure ). The new peak at 1458 cm –1 corresponds to the in-plane bending vibration of the C–H bonds on −CH 2 –CH 2 –, which also demonstrated that the −CH 2 –CH 2 – became greater, and the new peak at 1281 cm –1 ascribes to the C–N vibrational bond .…”

Section: Results and Discussionmentioning

confidence: 86%

Durable Antibacterial Cotton Fabrics Containing Stable Acyclic N-Halamine Groups

Tian

Zhai

Cheng

et al. 2017

Ind. Eng. Chem. Res.

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Inexpensive and commercially available methylene-bis-acrylamide (MBA) was covalently bonded onto the cotton fabrics by an effective catalytic solid-state reaction in water. The as-prepared MBA grafted cotton fabric (cotton-MBA) was characterized by field emission scanning electron microscopy image and Fourier transform infrared spectroscopy spectra. After a facile chlorination in diluted NaOCl solution, the amide functional groups in cotton-MBA were converted to N-halamine ones and durable antibacterial cotton fabric containing stable noncyclic N-halamine groups (cotton–MBA–Cl) was achieved. Antimicrobial testing showed that the cotton–MBA–Cl could effectively inactivate 5.78 × 107 CFU/mL of S. aureus and 7.58 × 108 CFU/mL of E. coli O157:H7 completely within 1 min of contact time. Washing durability testing indicated that the oxidative chlorine percentage of the cotton–MBA–Cl decreased from 0.43% to 0.06% after 50 washing cycles and was recovered to 0.30% via a simple rechlorination. It means that the N-halamine antimicrobial groups and the covalent bonds between MBA and cotton are very resistant to washing. Storage stability testing showed that the oxidative chlorine percentage of the cotton–MBA–Cl decreased from 0.43% to 0.32% after 30 day’s storage under room temperature, indicating that N-halamine functional groups are stable. Furthermore, it was found that the grafting and chlorination processes did not have any obvious bad effect on the tensile strength of cotton fabrics due to the mild grafting and chlorination conditions.

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“…Liquid phase deposition (LPD) is a method that can obtain crystalline metal oxide films directly from aqueous solutions at low temperatures (25e100 C) [19]. The surface roughness and wettability can be readily manipulated in just one process by this approach.…”

Section: Introductionmentioning

confidence: 99%