Lizbeth Liliana Díaz-Muñoz

Instituto Tecnológico de Aguascalientes · Posgrado

This paper reports the preparation, evaluation, and comparison of alkaline and acidic heterogeneous carbon-based catalysts in the transesterification of safflower oil with methanol to obtain biodiesel. These catalysts were obtained from the pyrolysis of flamboyant pods and their functionalization and activation with potassium hydroxide, citric acid...

Separation of itaconic acid from aqueous solution has been explored using various carbon-based adsorbents obtained from the pyrolysis and KOH activation of coconut shell biomass. The best preparation conditions to obtain a tailored adsorbent for itaconic acid purification were identified via a Taguchi experimental design, where its adsorption prope...

The application of artificial neural networks on adsorption modeling has significantly increased during the last decades. These artificial intelligence models have been utilized to correlate and predict kinetics, isotherms, and breakthrough curves of a wide spectrum of adsorbents and adsorbates in the context of water purification. Artificial neura...

Solid catalysts were prepared from flamboyant pods via pyrolysis with a subsequent surface chemistry functionalization using calcium nitrate. These catalysts were assessed in the transesterification of safflower oil as a model reaction to obtain fatty acid methyl esters (FAMEs). The catalyst preparation route was studied and optimized using a Taguc...

A heterogeneous physical model with two bindings sites (HPMTBS) was successfully used to explain the adsorption of Cd²⁺, Ni²⁺, Zn²⁺, and Cu²⁺ ions on flamboyant pods functionalized with citric acid. Experimental results and statistical physics modeling showed that carboxylic and phenolic functionalities of this adsorbent played a relevant role for...

Biodiesel production is usually performed via transesterification reaction. This reaction system can be favored using a suitable catalyst, either homogeneous or heterogeneous. Heterogeneous catalyzed production of biodiesel has become a preferred route since it is environmentally benign, does not require a water washing and the product separation i...

This study reports the combination of new statistical physics models and density functional theory (DFT) for the analysis and understanding of the adsorption of heavy metals on a flamboyant biomass-based adsorbent. Single and ternary isotherms of the adsorption of Pb2+, Hg2+ and Zn2+ ions on an adsorbent obtained from the pyrolysis of flamboyant bi...

This study reports the combination of new statistical physics models and density functional theory (DFT) for the analysis and understanding of the adsorption of heavy metals on a flamboyant biomass-based adsorbent. Single and ternary isotherms of the adsorption of Pb2+, Hg2+ and Zn2+ ions on an adsorbent obtained from the pyrolysis of flamboyant bi...

This study reports the synthesis of heterogeneous catalysts from flamboyant biomass and their evaluation on the transesterification reaction of safflower oil with methanol to produce biodiesel. The optimization of catalyst preparation conditions was performed. Results showed that the concentration of doping metallic specie was the main variable tha...