Synthesis of Mesoporous Carbon Adsorbents Using Biowaste Crude Glycerol as a Carbon Source via a Hard Template Method for Efficient CO Capture.

Biowaste utilization as a carbon source and its transformation into porous carbons have been of great interest to promote environmental remediation owing to biowaste's cost-effectiveness and useful physicochemical properties. In this work, crude glycerol (CG) residue from waste cooking oil transesterification was employed to fabricate mesoporous crude glycerol-based porous carbons (CGPCs) using mesoporous silica (KIT-6) as a template. The obtained CGPCs were characterized and compared to commercial activated carbon (AC) and CMK-8, a carbon material prepared using sucrose.

Carbon dioxide adsorbents from flame-made diesel soot nanoparticles.

Carbon dioxide (CO) is the top contributor to global warming. On the other, soot particles formed during fuel combustion and released into the atmosphere are harmful and also contribute to global warming. It would therefore be highly advantageous to capture soot and make use of it as a feedstock to synthesize carbon-based materials for applications such as carbon dioxide adsorption.

Water Vapor Adsorption Capacity Loss of Molecular Sieves 4A, 5A, and 13X Resulting from Methanol and Heptane Exposure.

Zeolite-based molecular sieves are applied in industrial dehydration units for their high water uptake capacities and extremely low equilibrium pressure of water vapor. During their operational life, they tend to lose their water vapor adsorption capacity slowly. To optimize the usage of molecular sieves in dryer units, it is vital to understand the mechanism(s) leading to deactivation.

Food wastes derived adsorbents for carbon dioxide and benzene gas sorption.

Food wastes are produced worldwide in large quantities that could have potential to produce higher value products, including industrial adsorbents. The present work attempts valorization of food waste by CO activation and functionalization through nitric acid and melamine treatment. The prepared porous materials were subjected to gas phase adsorption of CO and benzene gases.

A Facile Synthesis of Mesoporous Sulfonated Carbon and Its Structural Properties.

Mesoporous sulfonated carbons (SC) have been synthesized using tetraethyl orthosilicate (TEOS) as a silica source and sucrose as carbon source. The synthesized SC samples were carbonized in N₂flow at various high temperatures and then passing high purity air at room temperature. In this study, we extended the idea to deposit more oxygen functional groups into the surface of SC being high micropores for the favorable adsorption applications.

Synthesis of porous sulfonated carbon as a potential adsorbent for phenol wastewater.

The work reports a facile synthesis procedure for preparation of porous sulfonated carbons and its suitability for adsorption of phenol. The sulfonated carbon was synthesized utilizing a simplified, single-step, shorter duration process by sulfonation, dehydration and carbonization of sucrose in sulfuric acid and tetraethylorthosilicate. The surface and internal structures of the adsorbents were characterized utilizing various characterization techniques to understand the porous nature and surface functional groups of the porous matrix.