Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/42365
Title: Mesoporous pyrophyllite–titania nanocomposites: synthesis and activity in phenol photocatalytic degradation
Authors: El Gaidoumi, Abdelali
Doña-Rodríguez, José Miguel 
Pulido Melián, Elisenda 
González Díaz, Oscar Manuel 
El Bali, Brahim
Navío, José Antonio
Kherbeche, Abdelhak
UNESCO Clasification: 23 Química
Keywords: Clay
Pyrophyllite
Sol–gel
Nanocomposite
Photodeposition
Photocatalyst
Issue Date: 2018
Publisher: 0922-6168
Journal: Research on Chemical Intermediates 
Abstract: Pyrophyllite–TiO2nanocomposite PTi750 was successfully synthesized using a sol–gel method at ambient temperature based on exfoliation of the pyrophyllite layered clay by incorporation of the TiO2precursor titanium(IV) t-butoxide. PTi750 exhibited higher photocatalytic activity in phenol degradation compared with commercial TiO2Aeroxide P25. Ag-photodeposited PTi750 was more photoactive than PTi750, exhibiting detoxification, total degradation, and good mineralization of polluted solution and excellent stability after five reuses at optimal conditions in terms of the parameters pH, H2O2concentration, and photocatalyst amount. The nanocomposites were investigated using several techniques, viz. diffuse-reflectance ultraviolet–visible (UV–Vis) spectrophotometry, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction analysis, X-ray fluorescence spectroscopy, Fourier-transform infrared spectroscopy, and Brunauer–Emmett–Teller (BET) specific surface area measurements.
URI: http://hdl.handle.net/10553/42365
ISSN: 0922-6168
DOI: 10.1007/s11164-018-3605-8
Source: Research on Chemical Intermediates [ISSN 0922-6168]
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