CEST Proceedings are published under the ISSN 2944-9820.
Valorisation of polyolefins into magnetic carbon nanotubes: application as catalysts in wet peroxide oxidation of paracetamol
Sanches L., (Corresponding) dos Santos Silva A., Fontana Roman F., Diaz de Tuesta Triviño J., Alves da Silva F., Gomes H.
Topic:
Advanced oxidation processes
This work deals with the application of magnetic carbon nanotubes (MCNTs) in the catalytic wet peroxide oxidation (CWPO) of paracetamol (PCM), a pharmaceutical compound selected as model contaminant of emerging concern (CEC). MCNTs were synthetized by catalytic chemical vapor deposition (CCVD) at...Read more
Transferring the Carbonation of Biomass Bottom Ash from Batch to Continuous Operation
(Corresponding) Schnabel K., Brück F., Pohl S., Weigand H.
Topic:
Mineral carbonation of alkaline waste materials
Biomass incineration residues may be used for CO2 capture and storage by carbonation of waste-borne metal hydroxides. Moist carbonation of these ashes can be performed under mild conditions (ambient pressure and temperature) and accelerated by using a CO2-rich gas. The process requires the wetting...Read more
Keywords:
mineral carbonation, alkaline waste, carbon capture and storage, rotating drum
Carbon nanotubes synthesized from LDPE for application in wet peroxide oxidation of paracetamol
(Corresponding) Roman F., Marim Lopes J., Diaz de Tuesta J., Lenzi G., Tavares da Silva A., Faria J., Gomes H.
Topic:
Advanced oxidation processes
Carbon nanotubes (CNTs) were produced by chemical vapor deposition (CVD) considering low-density polyethylene (LDPE) as a carbon source and as an alternative to upcycle plastic solid waste. The CNTs were synthesized over bimetallic catalysts (Ni and Fe) supported on Al2O3 and purified with H2SO4 to...Read more
Selective denitrification of lipophilic pollutants from oily wastewater by peroxidation using Janus-structured amphiphilic carbon nanotubes as catalysts
Sanches F., Roman F., Silva A., Diaz de Tuesta J., Marin P., Machado B., Serp P., Silva A., (Corresponding) Gomes H.
Topic:
Advanced oxidation processes
Carbon nanotubes (CNTs) were tested as catalysts in the selective denitrification of 4-nitrophenol (4-NP) from oily wastewater by catalytic wet peroxide oxidation (CWPO). The CNTs were prepared by chemical vapor deposition, feeding sequentially ethylene (E) and/or acetonitrile (A) during different...Read more
Preparation and characterization of f-MWCNT-GO self-assembled polymeric nanocomposite membrane for wastewater treatment
(Corresponding) Nassar L., Khalil H., Wadi V., Naddeo V., Banat F., Hasan S.
Topic:
Wastewater treatment
Increased population and urbanization have resulted in the generation of significant amounts of wastewater. The integration of membrane technology with nanotechnology has prompted revolutionary advances in the treatment of wastewaters. In this study, functionalized multi-walled carbon nanotubes (f-...Read more
Integration of negatively charged MWCNT-fGO self-assembled nanomaterials into PLA polymeric membranes for wastewater treatment
(Corresponding) Khalil H., Nassar L., Wadi V., Naddeo V., Banat F., (Corresponding) Hasan S.
Topic:
Wastewater treatment
The integration of nanomaterials in membrane’s matrix aims to improve the membrane’s hydrophilicity, mechanical strength, thermal stability and water flux, which are vital membrane properties needed to active efficient removal of contaminants. Multi-walled carbon nanotubes (MWCNT) and...Read more
Novel super-hydrophobic carbon nanotube-based nanomaterial for membrane distillation
Ouda M., Wadi V., Hai A., Naddeo V., Banat F., (Corresponding) Hasan S.
Topic:
Desalination
Membrane distillation (MD) is a low-grade heat-based emerging technology found viable for seawater desalination. Membrane properties such as high hydrophobicity, mechanical strength, and thermal stability are crucial in assessing the compatibility of a membrane for use in this application. In this...Read more
Keywords:
Super-hydrophobic; carbon nanotubes; membrane distillation; chemical synthesis; desalination.
Synthesis of Fe3O4/Carbon Quantum Dots Hybrid for Efficient Removal of Congo Red Dye from Aqueous Solution
(Corresponding) Zourou A., Axarli V., Falara P., Ntziouni A., Kordatos K.
Topic:
Water treatment
During the past decades, the release of toxic pollutants into aquatic environment has continuously increased due to rapid industrialization and civilization. The presence of organic dyes, such as Congo Red (CR), can be dangerous to both human and aquatic life. Therefore, their removal is an...Read more
Keywords:
Fe3O4, carbon quantum dots, water treatment, Congo Red
Photocatalytic elimination of water pollutants using innovative titania thin film heterostructures embedding carbon quantum dots
(Corresponding) Falara P., Zourou A., Ibrahim I., (Corresponding) Kordatos K.
Topic:
Water treatment
Titanium dioxide based photocatalysis is a well-established advanced oxidation process (AOP) that recently has expanded its borders comprising advanced reduction processes (ARPs) as well. To enhance the photocatalytic activity, titania heterostructures embedding semiconductors, or clays, or...Read more
Studies on the CO2 adsorption mechanism of Na-X and Na-Ca-X coal fly ash zeolites
(Corresponding) Boycheva S., Lazarova H., Zgureva D., Popova M.
Topic:
Climate change mitigation and adaptation
Coal fly ash zeolites (CFAZ) of Na-X and Na-Ca-X types were synthesized using as raw materials fly ashes generated by the combustion of lignite from various deposits with low and medium limestone content. It has been found that CFAZs with higher calcium content superior those containing less...Read more
