Publications by authors named "Leo Gutierrez"
Article Synopsis
- - The study examined how different types of dissolved organic matter (DOM) affect the aggregation of rough, raspberry-type polystyrene nanoparticles (PS-NPs) in various salt solutions through advanced light scattering techniques.
- - Results indicated that the stability of PS-NPs is significantly influenced by the characteristics of the DOM and the type of salts, with calcium salts leading to faster aggregation compared to sodium salts, and biopolymers having a stronger attraction to PS-NPs than other DOM types.
- - The findings suggest that using coagulation processes is an effective method for removing PS-NPs, with different coagulants showing varying effectiveness depending on the presence of DOM; specifically, aluminum-based coagulants worked better in pure solutions, while polyal
This current study investigated the removal of metronidazole from aqueous media by C. vulgaris. Two different initial sizes of inoculum (0.
View Article and Find Full Text PDFIn this work, ceramic ultrafiltration membranes deposited with different metal oxides (i.e., TiO2, Fe2O3, MnO2, CuO, and CeO2) of around 10 nm in thickness and similar roughness were tested for O/W emulsion treatment.
View Article and Find Full Text PDFPhotosensitizing properties of different dissolved organic matter (DOM) were investigated according to their performance in singlet oxygen ((1)O2), triplet state of DOM ((3)DOM*), and hydroxyl radical (·OH) productions. The photobleaching of DOM solutions after irradiation was characterized by fluorescence excitation-emission matrix and UV-Vis spectroscopy. The photosensitizing properties of pre-irradiated DOM solutions were changed in a sunlight simulator.
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