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Self-regenerating photocatalytic hydrogel for the adsorption and decomposition of methylene blue and antibiotics in water

Author:
Pardo, Andrew, Garcia, Homero, Ramirez, Paulette, Carrillo-Alvarado, Miguel A., Krishna, Katla Sai, Dominguez, Noemi, Islam, Md Tariqul, Wang, Huiyao, Noveron, Juan C.
Source:
Environmental technology & innovation 2018 v.11 pp. 321-327
ISSN:
2352-1864
Subject:
Fourier transform infrared spectroscopy, X-ray diffraction, acrylic acid, adsorbents, adsorption, antibiotics, ciprofloxacin, environmental technology, hydrogels, methylene blue, nanocomposites, nanoparticles, ofloxacin, photocatalysis, scanning electron microscopy, thermogravimetry, titanium dioxide, ultraviolet-visible spectroscopy
Abstract:
Here we demonstrate the highly efficient adsorption and degradation of Methylene Blue and the antibiotics Tetracycline, Ofloxacin, and Ciprofloxacin using a TiO2-hydrogel nanocomposite that exhibits photocatalytic properties. The nanocomposite is synthesized through the thermal-polymerization of acrylic acid monomer in the prescence of TiO2 nanoparticles (21 nm) and characterized using scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), Thermogravimetric analysis (TGA), and FT-IR. The nanocomposite efficiently adsorps the contaminants in water and UV irradiation decomposes the adsorbed compounds in the hydrogel regenerating the material for further activity.
Agid:
6017619