Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Mar;30(12):32942-32956.
doi: 10.1007/s11356-022-24467-7. Epub 2022 Dec 6.

Novel cubical Ag(NP) decorated titanium dioxide supported bentonite thin film in the efficient removal of bisphenol A using visible light

Chhakchhuak Vanlalhmingmawia  1 , Diwakar Tiwari  2
Affiliations

Novel cubical Ag(NP) decorated titanium dioxide supported bentonite thin film in the efficient removal of bisphenol A using visible light

Chhakchhuak Vanlalhmingmawia et al. Environ Sci Pollut Res Int. 2023 Mar.

Abstract

The persistent endocrine-disrupting chemical bisphenol A is posing serious health concerns; hence, it is known to be an emerging and potential water contaminant. The present investigation aims to synthesize novel cubical Ag(NP) decorated titanium dioxide-supported bentonite (Ag/TiO2@Clay) nanocomposite using a novel synthetic process. The nanocomposite materials were characterized by several analytical methods viz., transmission electron microscopy (TEM), X-ray diffraction (XRD) analyses, energy-dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) and diffuse reflectance spectroscopy (DRS). Further, the photocatalytic removal of bisphenol A was conducted utilizing the thin film catalyst under the LED (light emitting diode; visible light) and UV-A (ultra violet-A) light sources. The parametric studies solution pH (6.0-12.0), pollutant concentrations (1.0-20.0 mg/L), and the interaction of several scavengers and co-existing ions are studied extensively to demonstrate the insights of the removal mechanism. The mineralization of bisphenol A and repeated use of the thin film catalyst showed the potential usage of photocatalysts in the devised large-scale operations. Similarly, the natural matrix treatment was performed to evaluate the suitability of the process for real implications.

Keywords: Mineralization rate; Natural matrix treatment; Novel nanocomposite thin film; Photocatalytic degradation of bisphenol A; Stability of nanocomposite thin film.

PubMed Disclaimer

References

    1. Abidi M, Hajjaji A, Bouzaza A et al (2020) Simultaneous removal of bacteria and volatile organic compounds on Cu2O-NPs decorated TiO2 nanotubes: competition effect and kinetic studies. J Photochem Photobiol Chem 400:112722. https://doi.org/10.1016/j.jphotochem.2020.112722 - DOI
    1. Ackerman L, Noonan G, Heiserman W et al (2010) Determination of bisphenol A in US infant formulas: updated methods and concentrations. J Agric Food Chem 58:2307–2313. https://doi.org/10.1021/jf903959u - DOI
    1. Ajmal A, Majeed I, Malik RN et al (2014) Principles and mechanisms of photocatalytic dye degradation on TiO2 based photocatalysts: a comparative overview. RSC Adv 4:37003–37026. https://doi.org/10.1039/C4RA06658H - DOI
    1. Amin S, Pazouki M, Hosseinnia A (2009) Synthesis of TiO2–Ag nanocomposite with sol–gel method and investigation of its antibacterial activity against E. coli. Powder Technol - 196:241–245. https://doi.org/10.1016/j.powtec.2009.07.021 - DOI
    1. Angel R, Durán-Álvarez JC, Zanella R (2018) TiO2-low band gap semiconductor heterostructures for water treatment using sunlight-driven photocatalysis. Intechopen 16:306–329. https://doi.org/10.5772/intechopen.76501 - DOI

LinkOut - more resources