Photocatalytic degradation of sulfamethoxazole using TiO2-based materials – Perspectives for the development of a sustainable water treatment technology

Musiał, Joanna; Mlynarczyk, Dariusz T.; Stanisz, Beata

doi:10.1016/j.scitotenv.2022.159122

Cited by 75 publications

(13 citation statements)

References 143 publications

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“…In addition to antifouling properties, TiO 2 NPs also possess tunable morphologies, facile surface functionalization/modification, chemical stability, low costs, self-cleaning properties, and photocatalytic activity for organic contaminants, making them suitable for membrane technology [ 173 , 174 , 175 , 176 , 177 , 178 ]. It is already known that photocatalytic properties of TiO 2 NPs help in the degradation of water contaminants in the presence of an energy source [ 179 , 180 , 181 , 182 , 183 , 184 ]. The mechanism of degradation lies in the absorption of energies higher than the semiconductor band gap, resulting in the excitation of electrons from the valence band to the conduction band.…”

Section: Incorporation Of Nps In Tfncs/mmmsmentioning

confidence: 99%

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Sahu¹,

Dosi

Kwiatkowski

et al. 2023

Polymers

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Nanomaterials have been extensively used in polymer nanocomposite membranes due to the inclusion of unique features that enhance water and wastewater treatment performance. Compared to the pristine membranes, the incorporation of nanomodifiers not only improves membrane performance (water permeability, salt rejection, contaminant removal, selectivity), but also the intrinsic properties (hydrophilicity, porosity, antifouling properties, antimicrobial properties, mechanical, thermal, and chemical stability) of these membranes. This review focuses on applications of different types of nanomaterials: zero-dimensional (metal/metal oxide nanoparticles), one-dimensional (carbon nanotubes), two-dimensional (graphene and associated structures), and three-dimensional (zeolites and associated frameworks) nanomaterials combined with polymers towards novel polymeric nanocomposites for water and wastewater treatment applications. This review will show that combinations of nanomaterials and polymers impart enhanced features into the pristine membrane; however, the underlying issues associated with the modification processes and environmental impact of these membranes are less obvious. This review also highlights the utility of computational methods toward understanding the structural and functional properties of the membranes. Here, we highlight the fabrication methods, advantages, challenges, environmental impact, and future scope of these advanced polymeric nanocomposite membrane based systems for water and wastewater treatment applications.

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Section: Incorporation Of Nps In Tfncs/mmmsmentioning

confidence: 99%

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Sahu¹,

Dosi

Kwiatkowski

et al. 2023

Polymers

View full text Add to dashboard Cite

show abstract

“…Several decades ago, the idea of utilizing TiO 2 nanoparticles for photocatalytic dye degradation was proposed [ 85 ]. Silver nanoparticles produced by green synthesis have also been applied as photocatalysts to process dyes and other organic compounds [ 86 ].…”

Section: Nanophotocatalysismentioning

confidence: 99%

Nanomaterials as a Sustainable Choice for Treating Wastewater: A Review

et al. 2022

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The removal of dyes from textile effluents utilizing advanced wastewater treatment methods with high efficiency and low cost has received substantial attention due to the rise in pollutants in water. The purpose of this work is to give a comprehensive analysis of the different treatments for removing chemical dyes from textile effluents. The capability and potential of conventional treatments for the degradation of dyeing compounds in aqueous media, as well as the influence of multiple parameters, such as the pH solution, initial dye concentration, and adsorbent dose, are presented in this study. This study is an overview of the scientific research literature on this topic, including nanoreductive and nanophotocatalyst processes, as well as nanoadsorbents and nanomembranes. For the purpose of treating sewage, the special properties of nanoparticles are currently being carefully researched. The ability of nanomaterials to remove organic matter, fungus, and viruses from wastewater is another benefit. Nanomaterials are employed in advanced oxidation techniques to clean wastewater. Additionally, because of their small dimensions, nanoparticles have a wide effective area of contact. Due to this, nanoparticles’ adsorption and reactivity are powerful. The improvement of nanomaterial technology will be beneficial for the treatment of wastewater. This report also offers a thorough review of the distinctive properties of nanomaterials used in wastewater treatment, as well as their appropriate application and future possibilities. Since only a few types of nanomaterials have been produced, it is also important to focus on their technological feasibility in addition to their economic feasibility. According to this study, nanoparticles (NPs) have a significant adsorption area, efficient chemical reactions, and electrical conductivity that help treat wastewater effectively.

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“…As a result, the excited electrons will produce free radicals to impel the photocatalytic reactions. Among various semiconductor catalysts, titanium dioxide (TiO 2 ) is one of the best photocatalysts for inducing a series of reductive and oxidative reactions on its surface, as TiO 2 is the most active photocatalyst under the photon energy of 300 nm < λ < 390 nm, and it remains stable after several catalytic cycles [ 18 ]. Besides this, TiO 2 catalyst also has many functional properties, such as its strongly thermal stability and resistance to chemical damage, which promote its wide application in photocatalytic technology [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization and Gel Properties of Low-Molecular-Weight Carrageenans Prepared by Photocatalytic Degradation

et al. 2023

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Low-molecular-weight carrageenan has attracted great interest because it shows advantages in solubility, absorption efficiency, and bioavailability compared to original carrageenan. However more environment-friendly and efficient methods to prepare low-molecular-weight carrageenan are still in great need. In the present study, a photocatalytic degradation method with only TiO2 has been developed and it could decrease the average molecular weight of κ-carrageenan to 4 kDa within 6 h. The comparison of the chemical compositions of the degradation products with those of carrageenan by FT-IR, NMR, etc., indicates no obvious removement of sulfate group, which is essential for bioactivities. Then 20 carrageenan oligosaccharides in the degradation products were identified by HPLC-MSn, and 75% of them possessed AnGal or its decarbonylated derivative at their reducing end, indicating that photocatalysis is preferential to break the glycosidic bond of AnGal. Moreover, the analysis results rheology and Cryo-SEM demonstrated that the gel property decreased gradually. Therefore, the present study demonstrated that the photocatalytic method with TiO2 as the only catalyst has the potential to prepare low-molecular-weight carrageenan with high sulfation degree and low viscosity, and it also proposed the degradation rules after characterizing the degradation products. Thus, the present study provides an effective green method for the degradation of carrageenan.

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Photocatalytic degradation of sulfamethoxazole using TiO2-based materials – Perspectives for the development of a sustainable water treatment technology

Cited by 75 publications

References 143 publications

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Advanced Polymeric Nanocomposite Membranes for Water and Wastewater Treatment: A Comprehensive Review

Nanomaterials as a Sustainable Choice for Treating Wastewater: A Review

Characterization and Gel Properties of Low-Molecular-Weight Carrageenans Prepared by Photocatalytic Degradation

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