Electrosorption and photocatalytic one-stage combined process using a new type of nanosized TiO2/activated charcoal plate electrode
Abstract
In the present study, an activated charcoal (AC) plate was prepared by physical activation method. Its surface was coated with TiO₂ nanoparticles by electrophoretic deposition (EPD) method. The average crystallite size of TiO₂ nanoparticles was determined approximately 28 nm. The nature of prepared electrode was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area measurement before and after immobilization. The electrosorption and photocatalytic one-stage combined process was investigated in degradation of Lanasol Red 5B (LR5B), and the effect of dye concentration, electrolyte concentration, pH, voltage, and contact time was optimized and modeled using response surface methodology (RSM) approach. The dye concentration of 30 mg L(-1), Na₂SO₄ concentration of 4.38 g L(-1), pH of 4, voltage of 250 mV, and contact time of 120 min were determined as optimum conditions. Decolorization efficiency increased in combined process to 85.65% at optimum conditions compared to 66.03% in TiO₂/AC photocatalytic, 20.09% in TiO₂/AC electrosorption, and 1.91% in AC photocatalytic processes.
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Activated carbon is a porous, amorphous solid carbon material derived mainly from carbonaceous or plant-based (lignocellulosic) materials and can be used as a support for TiO2.
“Activated carbon (AC), also termed active carbon, activated charcoal, or activated coal, is a porous, amorphous solid carbon material derived mainly from carbonaceous or plantbased (lignocellulosic) materials such as coconut shell, [113][114][115][116][117][118][119] activated charcoal, 120 sawdust of Tabebuia pentaphyla wood, 121-124 pine sawdust, 125 beech sawdust, 126 peach stones, 127 almond”
From Sustainable hybrid photocatalysts: titania immobilized on carbon materials derived from renewable and biodegradable resources (2016) · cites this paper as [120]
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- Authors
- Ayoubi-Feiz, B., Aber, S., Khataee, A., & Alipour, E.
- Affiliations
- University of Tabriz (IR)
- Corresponding author
- Khataee, Alireza
- Venue
- Environmental Science and Pollution Research
- Published
- 2014-04-15
- Volume
- 21
- Issue
- 14
- Pages
- 8555-8564
- ISSN
- 0944-1344 (ISSN-L)
- 1614-7499
- OpenAlex
- W1994690769
- Cited by
- 53
- References
- 34
- Citations by year
- 2025: 1 · 2024: 4 · 2023: 3 · 2022: 2 · 2021: 5 · 2020: 6 · 2019: 7 · 2018: 3 · 2017: 5 · 2016: 6 · 2015: 9 · 2014: 2
- FWCI
- 5.57
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Environmental Science and Pollution Research (publishedVersion)
- PubMed (publishedVersion)
- Funders
- University of Tabriz
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
- Keywords
- electrosorption, photocatalysis, titanium dioxide nanoparticles, activated carbon, plate electrodes, electrophoretic deposition, dye decolorization, dye degradation, combined process, response surface methodology, process optimization
- MeSH terms
- Adsorption, Catalysis, Charcoal, Coloring Agents, Electrochemistry, Electrodes, Hydrogen-Ion Concentration, Microscopy, Electron, Scanning, Sulfates, Surface Properties, Titanium, Ultraviolet Rays, Waste Disposal, Fluid, Water Pollutants, Chemical, X-Ray Diffraction, Nanoparticles
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