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

被引:30
作者
Alrowaili, Ziyad A. [1 ]
Alsohaimi, Ibrahim Hotan [2 ]
Betiha, Mohamed A. [3 ]
Essawy, Amr A. [2 ,4 ]
Mousa, Ahmed A. [5 ]
Alruwaili, Saif F. [2 ]
Hassan, Hassan M. A. [2 ,5 ]
机构
[1] Jouf Univ, Coll Sci, Phys Dept, POB 2014, Sakaka, Saudi Arabia
[2] Jouf Univ, Coll Sci, Chem Dept, POB 2014, Sakaka, Saudi Arabia
[3] Egyptian Petr Res Inst, Nasr City Cairo 11727, Egypt
[4] Fayoum Univ, Fac Sci, Chem Dept, Al Fayyum 63514, Egypt
[5] Suez Univ, Fac Sci, Dept Chem, Suez, Egypt
关键词
Photodegrading; Composite materials; Mesoporous silica; Ag nanoparticles; Photocatalyst; SOLAR-POWERED DEGRADATION; NANOCRYSTALLINE CELLULOSE; METHYLENE-BLUE; ANATASE TIO2; NANOCOMPOSITES; POLLUTANTS; PERFORMANCE; REMOVAL; FATE; ZNO;
D O I
10.1016/j.matchemphys.2019.122403
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Herein, 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.
引用
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页数:9
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