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Incorporation of Anatase TiO 2 to Highly Porous Silica (BMMs) for Photo‐Degradation of Alizarin Red Dye in Aqueous Solution
Author(s) -
Gul Anadil,
Sun Jihong,
Ullah Raza,
Munir Tallat,
Bai Shiyang
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202100813
Subject(s) - anatase , aqueous solution , materials science , photocatalysis , chemical engineering , mesoporous material , scanning electron microscope , adsorption , fourier transform infrared spectroscopy , degradation (telecommunications) , catalysis , zeta potential , sorption , transmission electron microscopy , nuclear chemistry , nanoparticle , chemistry , nanotechnology , organic chemistry , composite material , telecommunications , computer science , engineering
Prelaminar synthesis of anatase TiO 2 nanoparticles supported on bimodal mesoporous silica (BMMs) was carried out by impregnation method. Physiochemical characteristic and structural morphology of synthesized catalyst (TiO 2 /BMMs) were studied in detail by X‐ray diffraction patterns, N 2 sorption isotherms, Fourier transform infrared and ultraviolet‐visible spectra, surface‐zeta charges, inductively coupled plasma atomic emission spectroscopy, scanning electron microscopy and transmission electron microscopy. The results demonstrated that the anatase TiO 2 nanoparticles in size of around 5.06 nm were uniformly dispersed on the mesoporous surface of BMMs. The resultant TiO 2 /BMMs as photo‐catalyst had extensive effect on degradation performances (93.6 %) of alizarin red dye in aqueous solution, in which the effects of various parameters, such as pH, dose, and pollutant concentration on the adsorption capacity and further photo‐degradation were explored. Meanwhile, the reused photocatalyst after five successive cycles presented a higher activity with degradation up to 61.1 %, suggesting a good stability of newly synthesized catalyst.