Synthesis of 12-tungestophosphoric acid supported on Zr/MCM-41 composite with excellent heterogeneous catalyst and promising adsorbent of methylene blue

AA Ibrahim, RS Salama, SA El-Hakam… - Colloids and Surfaces A …, 2021 - Elsevier
In this study, zirconia-supported mesoporous MCM-41 composite was synthesized through
the surfactant-assisted sol-gel technique. Then, different weight percentages of …

Structural, photocatalytic, biological and catalytic properties of SnO2/TiO2 nanoparticles

SM Hassan, AI Ahmed, MA Mannaa - Ceramics International, 2018 - Elsevier
Abstract TiO 2 and SnO 2/TiO 2 nanoparticles with different SnO 2 contents (0–20 wt%) were
synthesized via surfactant-assisted sol-gel method using a cationic surfactant …

[HTML][HTML] Kinetic Aspects of Esterification and Transesterification in Microstructured Reactors

X Yao, Z Wang, M Qian, Q Deng, P Sun - Molecules, 2024 - mdpi.com
Microstructured reactors offer fast chemical engineering transfer and precise microfluidic
control, enabling the determination of reactions' kinetic parameters. This review examines …

Acid catalyzed organic transformations by heteropoly tungstophosphoric acid supported on MCM-41

SK Abd El Rahman, HMA Hassan… - Applied Catalysis A …, 2012 - Elsevier
In this work, solid acid catalysts of the Keggin-type 12-tungstophosphoric acid
(H3PW12O40, HPW) incorporated within the mesochannels of MCM-41 are prepared …

Synthesis and characterization of high surface area tin oxide nanoparticles via the sol‐gel method as a catalyst for the hydrogenation of styrene

R Adnan, NA Razana, IA Rahman… - Journal of the Chinese …, 2010 - Wiley Online Library
A systematic study on the preparation of SnO2 nanoparticles using a simple sol‐gel
technique has been conducted by varying reaction parameters such as concentration of …

Formation of 5-(Hydroxymethyl)furfural by Stepwise Dehydration over TiO2 with Water-Tolerant Lewis Acid Sites

R Noma, K Nakajima, K Kamata, M Kitano… - The Journal of …, 2015 - ACS Publications
The reaction mechanism for the formation of 5-(hydroxymethyl) furfural (HMF) from glucose
in water over TiO2 and phosphate-immobilized TiO2 (phosphate/TiO2) with water-tolerant …

Salen-Zr (IV) complex grafted into amine-tagged MIL-101 (Cr) as a robust multifunctional catalyst for biodiesel production and organic transformation reactions

HMA Hassan, MA Betiha, SK Mohamed… - Applied Surface …, 2017 - Elsevier
The synthesis of metal-organic frameworks (MOFs), porous coordination polymers with
functional groups has received immense interest due to the functional groups can offer …

Highly efficient, recyclable cerium-phosphate solid acid catalysts for the synthesis of tetrahydrocarbazole derivatives by Borsche–Drechsel cyclization

HM Altass, AS Khder, SA Ahmed, M Morad… - Reaction Kinetics …, 2021 - Springer
In this work, a series of cerium phosphate catalysts with different cerium phosphate molar
ratios have been synthesized. The prepared catalysts were characterized by means of FTIR …

Metal-organic frameworks with high tungstophosphoric acid loading as heterogeneous acid catalysts

SK Abd El Rahman, HMA Hassan… - Applied Catalysis A …, 2014 - Elsevier
High loadings of 12-tungstophosphoric acid (H 3 PW 12 O 40) were incorporated within
highly porous metal-organic framework MIL-101. The samples have been characterized …

Efficient catalytic conversion of carbohydrates into 5-ethoxymethylfurfural over MIL-101-based sulfated porous coordination polymers

X Liu, H Li, H Pan, H Zhang, S Huang, K Yang… - Journal of Energy …, 2016 - Elsevier
In this work, a series of MIL-101-SO 3 H (x) polymeric materials were prepared and further
used for the first time as efficient heterogeneous catalysts for the conversion of fructose …