Results 31 to 40 of about 23,098 (274)

Synthesis, characterization and photocatalytic activity of TiO2 supported natural palygorskite microfibers [PDF]

open access: yes, 2011
This study deals with the synthesis of TiO2 supported Moroccan palygorskite fibers and their use as photocatalyst for the removal of Orange G pollutant from wastewater.
Amjoud, M'barek   +7 more
core   +2 more sources

Hydration, Reactivity and Durability Performance of Low-Grade Calcined Clay-Silica Fume Hybrid Mortar

open access: yesApplied Sciences, 2023
Low-grade calcined clay, due to its low cost, availability and low temperature calcination, has been gaining attention in recent times as a supplementary cementitious material (SCM) in the manufacture of revolutionary building materials to improve the ...
Kwabena Boakye, Morteza Khorami
doaj   +1 more source

Cleaner Routes for Friedel-Crafts Acylation [PDF]

open access: yes, 2010
Friedel-Crafts acylation is among the most fundamental and useful reactions to yield aromatic ketones but it is one of the less acceptable in terms of unwanted polluting by-products or atom economy because of the overconsumption of catalyst which is used
Aribert, Nicolas   +4 more
core   +2 more sources

Closing Letter of RILEM TC 282-CCL: Calcined Clays as Supplementary Cementitious Materials

open access: yesRILEM Technical Letters
With over 8% of global carbon emissions worldwide, the cement industry is challenged to lower its carbon footprint. Replacement of clinker in cementitious systems becomes crucial.
José Fernando Martirena Hernández   +1 more
doaj   +1 more source

Early signs of thaumasite formation in calcined clay-limestone cement: Short-term changes of the hydrate phase assemblage [PDF]

open access: yesMATEC Web of Conferences
To reduce CO2 emissions associated with cement production, the use of calcined clay and limestone has gained increasing attention as supplementary cementitious materials.
Schlage Katarina K.   +2 more
doaj   +1 more source

Removal of ciprofloxacin from aqueous solutions using pillared clays [PDF]

open access: yes, 2017
Emerging contaminants in the environment have caused enormous concern in the last few decades, and among them, antibiotics have received special attention.
Baschini, Miria Teresita   +2 more
core   +2 more sources

Monometallic cerium layered double hydroxide supported Pd-Ni nanoparticles as high performance catalysts for lignin hydrogenolysis [PDF]

open access: yes, 2020
Monometallic cerium layered double hydroxides (Ce-LDH) supports were successfully synthesized by a homogeneous alkalization route driven by hexamethylenetetramine (HMT).
Bruneel, Els   +7 more
core   +1 more source

Effect of Low-Grade Calcined Clay on the Durability Performance of Blended Cement Mortar

open access: yesBuildings
Recent studies have shown the viability of low-grade calcined clays as a partial substitute for cement in construction applications. However, there is limited information about the performance of low-grade calcined clay in withstanding chloride-rich ...
Kwabena Boakye, Morteza Khorami
doaj   +1 more source

Calcined Clay Lightweight Ceramics Made with Wood Sawdust and Sodium Silicate [PDF]

open access: yesMaterials Research, 2016
This paper aims to study the influence of including wood sawdust and sodium silicate in the production process of calcined clay lightweight ceramics. In the production process first, a sample used by a company that produces ceramic products in Brazil was
Bruno Carlos de Santis   +2 more
doaj   +1 more source

Effect of dehydroxylation/amorphization degree of bentonite on the microstructure, thermal stability, and mechanical strength of basalt epoxy composites

open access: yesJournal of Materials Research and Technology, 2023
Calcination of smectite clays such as bentonite is tricky due to their 2:1 aluminosilicate structure. Low calcination temperature has minimal effect on the dehydroxylation, specific surface area (SSA), and crystalline nature of bentonite clays whereas ...
Saurabh Khandelwal   +3 more
doaj   +1 more source

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