Sorption and photocatalytic degradation of methylene blue on bentonite-ZnO-CuO nanocomposite
Authors:
- Krzysztof Szostak,
- Marcin Banach
Abstract
This paper presents a method for removing organic dyes by sorption and photocatalytic processes on a bentonitebed modified with ZnO-CuO nanocomposite. The effect of the initial dye concentration and temperature on theamount of dye removed from the solution was investigated. The results obtained at equilibrium state allowedus to determine the equilibrium and kinetic models and the thermodynamic parameters for the studied pro-cesses. The Langmuir isotherm is the best model for describing the equilibrium processes for both sorption andsorption with photocatalysis. In terms of kinetics, both processes are accurately described by the pseudo-second order model, which demonstrates the chemical nature of sorption. Due to the negativeΔGvaluescalcu-lated from the tests, it was found that the studied processes are spontaneous. It was possible to obtain a betterdegree of purification of the dye solution using combined sorption and photocatalysis compared to the sorptionprocess itself.
- Record ID
- CUTbf66fba181564c07b6501364db660879
- Publication categories
- ;
- Author
- Other language title versions
- Sorption and photocatalytic degradation of methylene blue on bentonite-ZnO-CuO nanocomposite
- Journal series
- Journal of Molecular Liquids, ISSN 0167-7322, e-ISSN 1873-3166
- Issue year
- 2019
- Vol
- 286
- Pages
- [1-16]
- Article number
- 110859
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 16; Bibliografia (liczba pozycji) - 42; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 286
- Keywords in English
- sorption, photocatalysis, nanocomposite, bentonite-ZnO-CuO, methylene blue, batch
- DOI
- DOI:10.1016/j.molliq.2019.04.136 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/abs/pii/S0167732218318075 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTbf66fba181564c07b6501364db660879/
- URN
urn:pkr-prod:CUTbf66fba181564c07b6501364db660879
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