One-pot sol–gel synthesis of a phosphated TiO2 catalyst for conversion of monosaccharide, disaccharides, and polysaccharides to 5-hydroxymethylfurfural

2019 ◽  
Vol 43 (31) ◽  
pp. 12483-12493 ◽  
Author(s):  
Kasanneni Tirumala Venkateswara Rao ◽  
Sadra Souzanchi ◽  
Zhongshun Yuan ◽  
Chunbao (Charles) Xu
Keyword(s):  
Sol Gel ◽  
Catalytic Conversion ◽  
One Pot ◽  
Tio2 Catalyst ◽  
Sol Gel Synthesis

Catalytic conversion of biomass or biomass-derived carbohydrates into 5-hydroxymethylfurfural (HMF) is an important reaction for the synthesis of bio-based polymers, fuels, and other industrially useful products.

scholarly journals One pot transparent sol-gel synthesis of TiO2 nanospheres with pristine anatase phase and their physicochemical characteristics

2016 ◽  
Vol 2 (1) ◽  
pp. 23-30 ◽  
Author(s):  
O.S.N. Ghosh ◽  
◽  
S. Gayathri ◽  
D. Alagarasan ◽  
K.V.P. Kumar ◽  
...  
Keyword(s):  
Anatase Phase ◽  
Sol Gel ◽  
Physicochemical Characteristics ◽  
One Pot ◽  
Sol Gel Synthesis

scholarly journals A mesostructured hybrid CTA–silica carrier for curcumin delivery

2020 ◽  
Vol 96 (1) ◽  
pp. 236-246
Author(s):  
Marta Gallo ◽  
Fabio Giudice ◽  
Mauro Banchero ◽  
Silvia Ronchetti ◽  
Luigi Manna ◽  
...  
Keyword(s):  
Water Solubility ◽  
Uv Spectroscopy ◽  
Sol Gel ◽  
Topical Administration ◽  
Release Mechanism ◽  
Active Principle ◽  
One Pot ◽  
Drug Release Mechanism ◽  
Sol Gel Synthesis ◽  
First Time

Abstract Curcumin is a natural active principle with antioxidant, antibacterial and anti-inflammatory properties. Its use is limited by a low water solubility and fast degradation rate, which hinder its bioavailability. To overcome this problem, curcumin can be delivered through a carrier, which protects the drug molecule and enhances its pharmacological effects. The present work proposes a simple one-pot sol–gel synthesis to obtain a hybrid carrier for curcumin delivery. The hybrid consists of a mesostructured matrix of amorphous silica, which stabilizes the carrier, and hexadecyltrimethylammonium (CTA), a surfactant where curcumin is dissolved to increase its water solubility. The carrier was characterized in terms of morphology (FESEM), physicochemical properties (XRD, FTIR, UV spectroscopy) and release capability in pseudo-physiological solutions. Results show that curcumin molecules were entrapped, for the first time, in a silica-surfactant mesostructured hybrid carrier. The hybrid carrier successfully released curcumin in artificial sweat and in a phosphate buffer saline solution, so confirming its efficacy in increasing curcumin water solubility. The proposed drug release mechanism relies on the degradation of the carrier, which involves the concurrent release of silicon. This suggests strong potentialities for topical administration applications, since curcumin is effective against many dermal diseases while silicon is beneficial to the skin.

Eu3+-doped CdS nanocrystals in SiO2matrices: one-pot sol–gel synthesis and optical characterization

2006 ◽  
Vol 16 (47) ◽  
pp. 4612-4618 ◽  
Author(s):  
Beatriz Julián ◽  
José Planelles ◽  
Eloisa Cordoncillo ◽  
Purificación Escribano ◽  
Patrick Aschehoug ◽  
...  
Keyword(s):  
Sol Gel ◽  
Optical Characterization ◽  
One Pot ◽  
Cds Nanocrystals ◽  
Sol Gel Synthesis

One-pot sol-gel synthesis of Si/C yolk-shell anodes for high performance lithium-ion batteries

2020 ◽  
Vol 835 ◽  
pp. 155135 ◽  
Author(s):  
Wei Zhang ◽  
Jianjiang Li ◽  
Peng Guan ◽  
Chunxiao Lv ◽  
Chao Yang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Sol Gel ◽  
Lithium Ion ◽  
One Pot ◽  
Sol Gel Synthesis

One-pot sol–gel synthesis of Ni/TiO2 catalysts for methane decomposition into COx free hydrogen and multiwalled carbon nanotubes

2017 ◽  
Vol 42 (26) ◽  
pp. 16495-16513 ◽  
Author(s):  
Manoj Pudukudy ◽  
Zahira Yaakob ◽  
Abudukeremu Kadier ◽  
Mohd Sobri Takriff ◽  
Nik Suhaimi Mat Hassan
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Sol Gel ◽  
Methane Decomposition ◽  
Multiwalled Carbon ◽  
One Pot ◽  
Free Hydrogen ◽  
Sol Gel Synthesis

scholarly journals Non-aqueous sol–gel synthesis through a low-temperature solvothermal process of anatase showing visible-light photocatalytic activity

RSC Advances ◽  
2014 ◽  
Vol 4 (87) ◽  
pp. 46762-46770 ◽  
Author(s):  
Mohamed Karmaoui ◽  
David M. Tobaldi ◽  
Andrijana Sever Skapin Andrijana Sever Skapin ◽  
Robert C. Pullar ◽  
Maria P. Seabra ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Low Temperature ◽  
Visible Light ◽  
Sol Gel ◽  
Solvothermal Process ◽  
One Pot ◽  
Visible Light Photocatalytic Activity ◽  
Sol Gel Synthesis ◽  
Visible Light Photocatalytic

A novel, facile method based on a non-aqueous sol–gel solvothermal process has been developed to synthesise spherical TiO2 nanoparticles (NPs) in one pot.

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

2014 ◽  
Vol 2 (40) ◽  
pp. 8607-8613 ◽  
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.

scholarly journals Green and facile sol–gel synthesis of the mesoporous SiO2–TiO2 catalyst by four different activation modes

RSC Advances ◽  
2020 ◽  
Vol 10 (65) ◽  
pp. 39580-39588
Author(s):  
Héctor Pérez ◽  
René Miranda ◽  
Zenaida Saavedra-Leos ◽  
Ramon Zarraga ◽  
Pedro Alonso ◽  
...  
Keyword(s):  
Sol Gel ◽  
Environmentally Friendly ◽  
Tio2 Catalyst ◽  
Mesoporous Sio2 ◽  
Sol Gel Synthesis

The most environmentally friendly protocol for obtaining mesoporous SiO2–TiO2 catalysts has been sought.

One-pot sol-gel synthesis of sulfated ZrO2-SiO2 catalysts for alcohol dehydration

2001 ◽  
Vol 79 (8) ◽  
pp. 1220-1223 ◽  
Author(s):  
Quan Zhuang ◽  
Jack M Miller
Keyword(s):  
Ammonium Sulfate ◽  
Sulfated Zirconia ◽  
Sol Gel ◽  
Synthesis Method ◽  
Acid Catalyst ◽  
Alcohol Dehydration ◽  
One Pot ◽  
Zirconium Propoxide ◽  
The One ◽  
Sol Gel Synthesis

Sulfated ZrO2–SiO2 catalysts were synthesized by one-pot sol-gel method using ammonium sulfate, zirconium propoxide, and tetraethyl orthosilicate as precursors. The catalysts were characterized by N2 adsorption and DRIFTS. On calcining the gel at elevated temperature, the ammonium sulfate decomposed, giving a sulfated zirconia–silica catalyst. By adding ammonium sulfate to the sol-gel synthesis system, the surface area, pore size, and pore volume of the resultant catalyst were increased. The one-pot sol-gel synthesized catalyst with an optimum loading of SO42– 14 mol% showed significantly higher catalytic activity, with a selectivity of 100%, for isopropanol dehydration when compared to the impregnated catalyst. The one-pot sol-gel synthesis method is an effective way to prepare sulfated zirconia catalyst.Key words: sulfated zirconia, sol-gel synthesis, acid catalyst, alcohol dehydration, N2 adsorption, DRIFT.

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