Photodegradation Diuron herbicide with TiO2-Al2O3 catalysts supported on graphene nanoplatelets

Objective: To photodegrade Diuron with TiO2-Al2O3 nanomaterials supported on graphene nanoplatelets (GnPs) Design/methodology/approach: The synthesis of the materials was carried out by the sol-gel method under mild conditions. Subsequently, the obtained materials were subjected to thermal processing for structural stabilization and pulverized. Synthesized nanomaterials were then characterized by nitrogen adsorption/desorption, X-ray diffraction, scanning electron microscopy, and Uv-Vis spectroscopy. Results: The adsorption/desorption results indicated that the ternary TiO2-Al2O3/GnPs nanomaterials were found to have complex porosity, which suggested that TiO2-Al2O3 was formed on agglomerated GnPs. X-ray diffraction data revealed that the anatase phase of TiO2 and the g-Al2O3 phase coexist with the crystalline phase of graphene. The morphology of the materials indicates that the nanoplatelets were randomly dispersed in a continuous mixed oxide phase. About the UV analysis, the presence of GnPs at 1 wt % concentration reduces the band gap by 6%. Limitations on study/implications: The physical and chemical properties of GnPs make the material an excellent candidate for the degradation of pollutants by photocatalysis. Findings/conclusions: The addition of GnPs improved the Diuron degradation, probably by forming a nanostructured interface or heterojunction.  Objective: To photodegrade Diuron with TiO2-Al2O3 nanomaterials supported on graphene nanoplatelets (GnPs) Design/methodology/approach: The synthesis of the materials was carried out by the sol-gel method under mild conditions. Subsequently, the obtained materials were subjected to thermal processing for structural stabilization and pulverized. Synthesized nanomaterials were then characterized by nitrogen adsorption/desorption, X-ray diffraction, scanning electron microscopy, and Uv-Vis spectroscopy. Results: The adsorption/desorption results indicated that the ternary TiO2-Al2O3/GnPs nanomaterials were found to have complex porosity, which suggested that TiO2-Al2O3 was formed on agglomerated GnPs. X-ray diffraction data revealed that the anatase phase of TiO2 and the g-Al2O3 phase coexist with the crystalline phase of graphene. The morphology of the materials indicates that the nanoplatelets were randomly dispersed in a continuous mixed oxide phase. About the UV analysis, the presence of GnPs at 1 wt % concentration reduces the band gap by 6%. Limitations on study/implications: The physical and chemical properties of GnPs make the material an excellent candidate for the degradation of pollutants by photocatalysis. Findings/conclusions: The addition of GnPs improved the Diuron degradation, probably by forming a nanostructured interface or heterojunctio

Revista de Vertebrados de la Estación Biológica de Doñana

Materiales para una «Herpetofauna Balearica 5. Las salamanquesas y tortugas del archipiélago de CabreraEcología de una población insular mediterránea del Eslizón ibérico, Chalcides bedriagai (Sauria Scincidae).Ecología alimenticia del águila imperial ibérica (Aquila adalberti) en el Coto Doñana durante la crianza de los pollosDatos sobre la dieta invernal del colirrojo tizón (Phoenicurus ochruros) en encinares de Andalucía occidentalSobre infecciones estafilocócicas en el Aguila imperial ibérica (Aquila adalberti Brehm)Breves notas sobre el Sapo partero ibérico (Alytes cisternasii Boscá)Sobre la presencia de Hyla arborea en la provincia de BadajozAlgunas presas de Elaphe scalaris.Observaciones de Tarentola maurítanica en nido de Hirundo dauricaObservación de una culebra viperina Natrix maura en agua marinaPrimera cita de la CollaIba yebélica (Oenanthe leucopyga) en la Península ibéricaObservaciones de Phoenicopterus ruber en la Ría de Vigo (PontevedraDatos sobre el Myotis emarginatus en la Península ibérica.Peer reviewe