Advances in the catalyzed photo-fermentative biohydrogen production through photo nanocatalysts with the potential of selectivity, and customization

Bioresource Technology, Journal Year: 2023, Volume and Issue: 382, P. 129221 - 129221

Published: May 20, 2023

Language: Английский

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Enhanced Photodegradation of Rhodamine B Using Visible-Light Sensitive N-TiO2/rGO Composite

Crystals, Journal Year: 2023, Volume and Issue: 13(4), P. 588 - 588

Published: March 30, 2023

Rhodamine B (RhB) is extensively used for dyeing purposes, and cannot be completely removed using traditional water treatment technologies. Here, we report the first time photodegradation of RhB nitrogen-doped titanium dioxide (N-TiO2) on reduced graphene oxide (rGO) composite (N-TiO2/rGO). The work primarily highlights synergistic effect incorporation N-TiO2 rGO its kinetic study RhB. N-TiO2/rGO was synthesized by dispersing titanium(IV) isopropoxide urea, followed annealing via hydrothermal method with rGO. Scanning electron microscopy (SEM) images illustrated that particles an irregular round shape white color were dispersed onto surface. X-Ray diffraction (XRD) patterns revealed showed anatase phase TiO2 a peak 2θ = 25.622°. gas sorption analysis (GSA) had surface area, pore volume, size 53.393 m2/g, 0.096 cc/g, 3.588 nm, respectively. thermogravimetric-differential thermal (TG-DTA) appeared at temperature 200–500 °C, weight loss 2.50%. According to ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) study, TiO2, N-TiO2, band gap energies 3.25, 2.95, 2.86 eV, highest obtained optimum condition in pH 2 photocatalyst mass 20 mg irradiation 90 min. photocatalytic activity visible light higher percentage 78.29%, compared 44.08% under UV light. pseudo-second-order model.

Language: Английский

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Porous Geopolymer/ZnTiO3/TiO2 Composite for Adsorption and Photocatalytic Degradation of Methylene Blue Dye

Polymers, Journal Year: 2023, Volume and Issue: 15(12), P. 2697 - 2697

Published: June 15, 2023

In this study, GP (geopolymer) and GTA (geopolymer/ZnTiO3/TiO2) geopolymeric materials were prepared from metakaolin (MK) characterized by X-ray diffraction (XRD), fluorescence (XRF), scanning electron microscopy (SEM), energy dispersive X-rays (EDX), specific surface area (SSA), point of zero charge (PZC). The adsorption capacity photocatalytic activity the compounds in form pellets was determined degradation methylene blue (MB) dye batch reactors, at pH = 7.0 ± 0.2 room temperature (20 °C). results indicate that both are highly efficient adsorbing MB, with an average efficiency value 98.5%. Langmuir isotherm model pseudo second order kinetic provided best fits to experimental data for compounds. MB photodegradation experiments under UVB irradiation, reached 93%, being higher than achieved (4%). Therefore, incorporation ZnTiO3/TiO2 matrix allowed achieve overall efficiency, combining photocatalysis, compared compound. synthesized could be used up five consecutive cycles removal wastewater through and/or photocatalysis processes.

Language: Английский

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Strategies to improve the antimicrobial properties of metal-oxide based photocatalytic coating: A review

Progress in Organic Coatings, Journal Year: 2023, Volume and Issue: 187, P. 108183 - 108183

Published: Dec. 26, 2023

Language: Английский

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Green synthesis of xanthene derivatives through visible light-driven photocatalysis using blackberry dye-sensitized TiO2

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 978, P. 173388 - 173388

Published: Jan. 5, 2024

Language: Английский

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