Continuous flow vortex fluidic synthesis of silica xerogel as a delivery vehicle for curcumin

Sol–gel synthesis of silica xerogel using a continuous flow vortex fluidic device at room temperature is effective in direct incorporation of preformed curcumin particles, which has antimicrobial activity against Staphylococcus aureus.

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Rapid high conversion of high free fatty acid feedstock into biodiesel using continuous flow vortex fluidics

RSC Advances ◽

10.1039/c4ra14909b ◽

2015 ◽

Vol 5 (3) ◽

pp. 2276-2280 ◽

Cited By ~ 15

Author(s):

Joshua Britton ◽

Colin L. Raston

Keyword(s):

Fatty Acids ◽

Free Fatty Acids ◽

Continuous Flow ◽

Room Temperature ◽

Flow Chemistry ◽

Environmentally Benign ◽

High Free Fatty Acid ◽

Rapid Reduction ◽

Biodiesel Feedstock ◽

Flow Vortex

Rapid reduction of free fatty acids in biodiesel feedstock: the rapid conversion of problematic free fatty acids in bio-oils has been achieved using room temperature, environmentally benign vortex fluidic flow chemistry.

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Room Temperature Synthesis of V-Doped TiO2 and Its Photocatalytic Activity in the Removal of Caffeine under UV Irradiation

Materials ◽

10.3390/ma12060911 ◽

2019 ◽

Vol 12 (6) ◽

pp. 911 ◽

Cited By ~ 6

Author(s):

Olga Sacco ◽

Diana Sannino ◽

Mariantonietta Matarangolo ◽

Vincenzo Vaiano

Keyword(s):

Room Temperature ◽

Uv Light ◽

Sol Gel ◽

Doped Tio2 ◽

Toc Removal ◽

Calcination Step ◽

Caffeine Degradation ◽

Wavelength Emission ◽

Sol Gel Synthesis ◽

Uv Leds

In this work, the influence of simple acids in the room temperature sol-gel synthesis of TiO2 was investigated and the efficiency of prepared photocatalysts was evaluated in the removal of caffeine. To improve the photoactivity of TiO2, vanadium-doped TiO2 (VTiO2) samples were obtained starting from different amount of vanadyl sulphate as a dopant source. The samples were centrifuged, washed and finally dried at room temperature, and no calcination step was carried out. The prepared photocatalysts were characterized by different techniques (X-ray powder diffraction (XRD), specific surface area (SSA), ultraviolet-visible diffuse reflectance spectra (UV-vis DRS) and Raman). VTiO2 photocatalysts were tested in the photocatalytic removal of aqueous solutions containing caffeine. The photocatalytic tests were carried out in a recirculating batch cylindrical photoreactor irradiated by a UV LEDs strip (nominal power of 12 W and wavelength emission peak at about 365 nm) surrounding the external surface of the reactor. The optimized VTiO2 photocatalyst was able to reach a caffeine degradation of about 96% after 360 min of UV light irradiation with a total organic carbon (TOC) removal of 72%.

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Continuous flow vortex fluidic production of biodiesel

RSC Advances ◽

10.1039/c4ra10317c ◽

2014 ◽

Vol 4 (91) ◽

pp. 49850-49854 ◽

Cited By ~ 29

Author(s):

Joshua Britton ◽

Colin L. Raston

Keyword(s):

Phase Separation ◽

Sunflower Oil ◽

Continuous Flow ◽

Room Temperature ◽

Flow Vortex ◽

Spontaneous Phase

Vortex fluidic synthesis of biodiesel from sunflower oil under continuous flow at room temperature, with spontaneous phase separation.

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Sol-Gel Synthesis and Preliminary Characterizations of Novel Silica Hybrid Xerogels

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.594-595.1009 ◽

2013 ◽

Vol 594-595 ◽

pp. 1009-1014

Author(s):

S.A. Syed Nuzul Fadzli ◽

S. Roslinda ◽

Z. Firuz

Keyword(s):

Sodium Alginate ◽

Calcium Oxide ◽

Sol Gel ◽

Silica Xerogel ◽

Particle Sizes ◽

Mesoporous Composite ◽

Hybrid Silica ◽

Hybrid Xerogels ◽

Mild Temperature ◽

Sol Gel Synthesis

Hybrid silica xerogel mesoporous composite was synthesized by a mild temperature acid catalysed sol-gel route where a natural copolymer; sodium alginate (Na-COOH) together with calcium oxide (CaO) powder were incorporated into silica sol precursor prior to gel formation. For this study, bulk xerogels samples were prepared with the amount of silica precursor and the natural copolymer was fixed meanwhile the loading of calcium oxide was varied at 10 and 20 wt%. The monolith silica was also synthesized as control parameter. The preliminary properties were investigated using XRD, FTIR and SEM together with EDS for elemental analysis. The calcium oxide powder used in this study was prepared from calcium hydroxide, CaOH compound, which was previously calcined at 1000°C for 3 hours in normal air. The component of calcium oxide and sodium alginate were found to be uniformly dispersed in matrixes without affecting the cross-linked silica formation. As the presence of the components in the silica matrixes, the synthesized hybrid xerogels were found to be crack-free, structurally amorphous and physically opaque. Furthermore, the hybrid xerogels samples were found to have denser bodies, smoother surface, and decreased in particle sizes and thus might produced less brittleness in nature compared to the monolith xerogels.

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Nanoscale CaF2 doped with Eu3+ and Tb3+ through fluorolytic sol–gel synthesis

Journal of Materials Chemistry C ◽

10.1039/c4tc01073f ◽

2014 ◽

Vol 2 (40) ◽

pp. 8607-8613 ◽

Cited By ~ 48

Author(s):

Benjamin Ritter ◽

Thoralf Krahl ◽

Knut Rurack ◽

Erhard Kemnitz

Keyword(s):

Room Temperature ◽

Sol Gel ◽

Synthesis Method ◽

One Pot ◽

One Pot Synthesis ◽

Sol Gel Synthesis

Easy upscaleable one-pot synthesis method at room temperature for ultra small sized Eu3+- and Tb3+-doped CaF2 nanoparticles.

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Sol–gel synthesis and room-temperature properties of α-LiZr2(PO4)3

RSC Advances ◽

10.1039/c4ra16804f ◽

2015 ◽

Vol 5 (22) ◽

pp. 17054-17059 ◽

Cited By ~ 21

Author(s):

Hany El-Shinawi ◽

Colin Greaves ◽

Jürgen Janek

Keyword(s):

Room Temperature ◽

Sol Gel ◽

Bulk Conductivity ◽

Gel Method ◽

Sol Gel Method ◽

Sol Gel Synthesis

A room-temperature stable α-LiZr2(PO4)3 phase is prepared by a modified sol–gel method, and shows bulk conductivity as high as 1.58 × 10−4 Scm−1.

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The effects of surfactant in the sol–gel synthesis of CuO/TiO2 nanocomposites on its photocatalytic activities under UV-visible and visible light illuminations

New Journal of Chemistry ◽

10.1039/c9nj05246a ◽

2020 ◽

Vol 44 (5) ◽

pp. 1888-1904 ◽

Cited By ~ 9

Author(s):

T. N. Ravishankar ◽

M. de O. Vaz ◽

S. R. Teixeira

Keyword(s):

Visible Light ◽

Room Temperature ◽

Low Cost ◽

Sol Gel ◽

Gel Method ◽

Sol Gel Method ◽

Photocatalytic Activities ◽

Uv Visible ◽

Sol Gel Synthesis ◽

Surfactant Assisted

Effective and low-cost CuO/TiO2 nanocomposites were prepared at room temperature by a surfactant-assisted sol–gel method for photocatalytic activities under UV-visible and visible light irradiations.

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Blend Hybrid Solid Electrolytes Based on LiTFSI Doped Silica-Polyethylene Oxide for Lithium-Ion Batteries

Membranes ◽

10.3390/membranes9090109 ◽

2019 ◽

Vol 9 (9) ◽

pp. 109 ◽

Cited By ~ 2

Author(s):

Jadra Mosa ◽

Jonh Fredy Vélez ◽

Mario Aparicio

Keyword(s):

Ionic Conductivity ◽

Solid Electrolytes ◽

Room Temperature ◽

Sol Gel ◽

Lithium Ion ◽

Hybrid Structure ◽

Hybrid Network ◽

Li Ion Batteries ◽

Li Ion ◽

Sol Gel Synthesis

Organic/inorganic hybrid membranes that are based on GTT (GPTMS-TMES-TPTE) system while using 3-Glycidoxypropyl-trimethoxysilane (GPTMS), Trimethyletoxisilane (TMES), and Trimethylolpropane triglycidyl ether (TPTE) as precursors have been obtained while using a combination of organic polymerization and sol-gel synthesis to be used as electrolytes in Li-ion batteries. Self-supported materials and thin-films solid hybrid electrolytes that were doped with Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) were prepared. The hybrid network is based on highly cross-linked structures with high ionic conductivity. The dependency of the crosslinked hybrid structure and polymerization grade on ionic conductivity is studied. Ionic conductivity depends on triepoxy precursor (TPTE) and the accessibility of Li ions in the organic network, reaching a maximum ionic conductivity of 1.3 × 10−4 and 1.4 × 10−3 S cm−1 at room temperature and 60 °C, respectively. A wide electrochemical stability window in the range of 1.5–5 V facilitates its use as solid electrolytes in next-generation of Li-ion batteries.

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Continuous flow vortex fluidic-mediated exfoliation and fragmentation of two-dimensional MXene

Royal Society Open Science ◽

10.1098/rsos.192255 ◽

2020 ◽

Vol 7 (5) ◽

pp. 192255

Author(s):

Ahmed Hussein Mohammed Al-antaki ◽

Suela Kellici ◽

Nicholas P. Power ◽

Warren D. Lawrance ◽

Colin L. Raston

Keyword(s):

Thin Film ◽

Continuous Flow ◽

Isopropyl Alcohol ◽

Inert Atmosphere ◽

Operating Parameters ◽

Two Dimensional ◽

Flow Conditions ◽

2D Material ◽

Fluidic Device ◽

Flow Vortex

MXene (Ti 2 CT x ) is exfoliated in a vortex fluidic device (VFD), as a thin film microfluidic platform, under continuous flow conditions, down to ca 3 nm thin multi-layered two-dimensional (2D) material, as determined using AFM. The optimized process, under an inert atmosphere of nitrogen to avoid oxidation of the material, was established by systematically exploring the operating parameters of the VFD, along with the concentration of the dispersed starting material and the choice of solvent, which was a 1 : 1 mixture of isopropyl alcohol and water. There is also some fragmentation of the 2D material into nanoparticles ca 68 nm in diameter.

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