The photoelectrochemical performance and the semiconducting properties of iron, carbon and nitrogen modified TiO2 films prepared by a sol-gel method and deposited on 304 stainless steel (304SS) plates by a dip-coating technique were studied. Iron and carbon co-doped films were pr...
Autor(es): Martha Eugenia Niño. Jose Antonio Henao. Laura Marcela Joya. Ingrid Natalia Sequeda. Angel Manuel Melendez. Rogelio Ospina.
Delayed coking is the technology most used to upgrade vacuum residue into high-value products, but in this process, secondary reactions produce coke. It is already known that the chemical and physical properties and composition of the feedstock and processing conditions affect co...
Autor(es): Juan Carlos Poveda. Martha Eugenia Niño. Fernando Martinez. Naydu Paola Zambrano.
TiO2 thin films deposited on stainless steel (SS) substrates exhibit low photocatalytic (PC) activity when calcined above 350 °C. The cause is the presence of Fe3+ into the film due to its diffusion from SS to the surface during the calcination process. Over the past two decades,...
Autor(es): Martha Eugenia Niño. Angel Manuel Melendez. Andres Fabian Gualdron.