Green fabrication of silver imprinted titania / silica nanospheres as robust visible light-induced photocatalytic wastewater purification

Publication date: 1 February 2020Source: Materials Chemistry and Physics, Volume 241Author(s): Ziyad A. Alrowaili, Ibrahim Hotan Alsohaimi, Mohamed A. Betiha, Amr A. Essawy, Ahmed A. Mousa, Saif F. Alruwaili, Hassan M.A. HassanAbstractHerein, the Inexpensive Phyto-synthetic approach using green tea extract to fabricate silver greenly imprinted TiO2 nanoparticles modified mesoporous silica nanocomposite (Ag/TNPs-MSNs) is reported. The nanocomposites were featured by using UV–vis diffuse reflectance spectra, X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), nitrogen Sorption, High-resolution transmittance electron microscopy (HRTEM) and Field Emission Scanning Electron Microscopy (FESEM). Ag/TNPs-MSN bandgap evaluations are 2.78 eV compared to 3.16 eV for TNPs-MSNs with ideal visible light capture capability, indicating the outstanding photodegradation activity of the synthesized nanocomposite. In addition, Ag/TNPs-MSNs photocatalytic effectiveness is evaluated in the degradation of aqueous solutions enriched with methylene blue (MB). The composite materials are extremely appropriate based on stability, recyclability/reusability, and a proper approach for visible-light-degradation of MB from the contaminated waters.Graphical abstract
Source: Materials Chemistry and Physics - Category: Materials Science Source Type: research