Photocatalytic Degradation of Methylene Blue and Antibacterial Activity of Mesoporous TiO2-SBA-15 Nanocomposite Based on Rice Husk | Zendy

Eid H. Alosaimi | Zendy; Ibrahim Hotan Alsohaimi | Zendy; Talal E. Dahan | Zendy; Qiao Chen | Zendy; Ayman A. O. Younes | Zendy; B. ElGammal | Zendy; Saad Melhi | Zendy

Open Access

Photocatalytic Degradation of Methylene Blue and Antibacterial Activity of Mesoporous TiO₂-SBA-15 Nanocomposite Based on Rice Husk

Author(s) -

Eid H. Alosaimi,

Ibrahim Hotan Alsohaimi,

Talal E. Dahan,

Qiao Chen,

Ayman A. O. Younes,

B. ElGammal,

Saad Melhi

Publication year - 2021

Publication title -

adsorption science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.682

H-Index - 36

eISSN - 2048-4038

pISSN - 0263-6174

DOI - 10.1155/2021/9290644

Subject(s) - photocatalysis , nanocomposite , photodegradation , methylene blue , husk , mesoporous material , fourier transform infrared spectroscopy , chemistry , degradation (telecommunications) , chemical engineering , adsorption , nuclear chemistry , high resolution transmission electron microscopy , catalysis , bet theory , raman spectroscopy , specific surface area , materials science , nanotechnology , organic chemistry , telecommunications , botany , physics , optics , transmission electron microscopy , computer science , engineering , biology

Concerns have been increased regarding the existence of pollutants in environmental water resources and their risks to the ecosystem and human society. TiO2 photocatalyst is considered as an effective photocatalyst to remove the pollutants. Herein, the mesoporous TiO2-SBA-15 was prepared using the rice husk extract as the silica source. The fabricated nanocomposites were characterized using FTIR, small and wide angle XRD, Raman spectroscopy, UV-vis, BET surface area analysis, and HRTEM. The photocatalytic efficiency of the composites for the degradation of methylene blue (MB) has been evaluated under UV irradiation. Interestingly, due to the excellent dispersion of TiO2 on the wall of SBA-15 and good hydrophilicity, the nanocomposites displayed a good catalytic activity. The higher photodegradation performance was achieved by the composite containing 10 wt% TiO2 by which the MB was fully degraded within 15-20 min of irradiation. Besides, TiO2-SBA-15 could effectively inhibit the growth of Gram-positive and Gram-negative bacteria. These results offer a practical and economic approach in the environmental management industries.

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