Evaluation of N-doped graphene role in the visible-light driven photodegradation of sulfamethoxazole by a TiO2-silver-graphene composite

Urda, Alexandra; Radu, Teodora; Socaci, Crina; Floare-Avram, Veronica; Cosma, Dragos; Roşu, Marcela‐Corina; Coroș, Maria; Pruneanu, Stela; Pogăcean, Florina

doi:10.1016/j.jphotochem.2021.113701

Cited by 8 publications

(1 citation statement)

References 33 publications

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“…These compounds greatly impact the aquatic ecosystem, with significant toxic side effects exhibited by microorganisms, algae, invertebrates, and vertebrates in the environment. Among these drugs, sulfamethoxazole [331][332][333][334][335][336][337], metronidazole [338][339][340][341][342][343], carbamazepine [344], ciprofloxacin [242,345], and tetracycline [346][347][348], etc., and hormones such as 17α-methyltestosterone [349], have been most researched from a photodegradation perspective. Awfa et al reviewed the use of carbon-TiO 2 composites as catalysts that photodegrade drugs and personal care products in aqueous media [350].…”

Section: Drugs and Daily Necessitiesmentioning

confidence: 99%

Preparation and Photocatalytic Activities of TiO2-Based Composite Catalysts

Yang

Chen

et al. 2022

Catalysts

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While modern industry has contributed to the prosperity of an increasingly urbanized society, it has also led to serious pollution problems, with discharged wastewater and exhaust gases causing significant environmental harm. Titanium dioxide (TiO2), which is an excellent photocatalyst, has received extensive attention because it is inexpensive and able to photocatalytically degrade pollutants in an environmentally friendly manner. TiO2 has many advantages, including high chemical stability, low toxicity, low operating costs, and environmental friendliness. TiO2 is an N-order semiconductor material with a bandgap of 3.2 eV. Only when the wavelength of ultraviolet light is less than or equal to 387.5 nm can the valence band electrons obtain the energy of the photons and pass through the conduction band and form photoelectrons, while the valence band, correspondingly, forms photogenerated holes, and light in other areas will not be generated. The most common methods used to improve the photocatalytic efficiency of TiO2 involve increasing its photoresponse range and reducing photogenerated-carrier coupling. The morphology, size, and structure of a heterojunction can be altered through element doping, leading to improved photocatalytic efficiency. Mainstream methods for preparing TiO2 are reviewed in this paper, with several excellent preparation schemes for improving the photocatalytic efficiency of TiO2 introduced. TiO2 is mainly prepared using sol-gel, solvothermal, hydrothermal, anodic oxidation, microwave-assisted, CVD and PVD methods, and TiO2 nanoparticles with excellent photocatalytic properties can also be prepared. Ti-containing materials are widely used to purify harmful gases, as well as contaminants from building materials, coatings, and daily necessities. Therefore, the preparation and applications of titanium materials have become globally popular research topics.

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Section: Drugs and Daily Necessitiesmentioning

confidence: 99%

Preparation and Photocatalytic Activities of TiO2-Based Composite Catalysts

Yang

Chen

et al. 2022

Catalysts

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Construction of a Double Z‐Scheme CuO/Cu₂O/CuS/ZnO Quaternary Heterojunction Photocatalyst with Enhanced Solar‐Driven Photocatalytic Performance for Sulfamethoxazole Degradation

Zhu,

Du,

Yang

2024

ChemistrySelect

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A novel CuO/Cu2O/CuS/ZnO quaternary heterojunction photocatalyst was constructed through a facile microwave technique. The structure, morphology and optical properties were characterized and explored. The photocatalytic activity of CuO/Cu2O/CuS/ZnO quaternary composite was assessed by antibiotic sulfamethoxazole under the simulated solar light irradiation. The quaternary composite manifested more excellent photocatalytic performance than the pristine ZnS and CuO/Cu2O. Moreover, the effects of ascorbic acid concentration on removal efficiency of sulfamethoxazole were discussed, revealing the importance of Cu2O in sulfamethoxazole removal. Particularly, as the ascorbic acid was 0.50 M, the total removal efficiency of sulfamethoxazole at an initial concentration of 20 mg/L was approximately 99.17 %, and the fitted pseudo‐first‐order kinetic rate constant reached 0.0380/min, which were 1.73 and 6.91 times of that in the absence of ascorbic acid, respectively. A double Z‐scheme charge transfer mechanism was confirmed by the reactive species trapping tests, which demonstrated that superoxide radicals and holes were the major reactive species responsible for sulfamethoxazol degradation. CuO/Cu2O/CuS/ZnO nanocomposite provided an interesting perspective for a highly efficient quaternary photocatalyst that could be employed for remediation antibiotics.

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In situ nitrogen-doped graphene-TiO2 nano-hybrid as an efficient photocatalyst for pollutant degradation

Khan

2024

Environ Sci Pollut Res

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Evaluation of N-doped graphene role in the visible-light driven photodegradation of sulfamethoxazole by a TiO2-silver-graphene composite

Cited by 8 publications

References 33 publications

Preparation and Photocatalytic Activities of TiO2-Based Composite Catalysts

Preparation and Photocatalytic Activities of TiO2-Based Composite Catalysts

Construction of a Double Z‐Scheme CuO/Cu₂O/CuS/ZnO Quaternary Heterojunction Photocatalyst with Enhanced Solar‐Driven Photocatalytic Performance for Sulfamethoxazole Degradation

In situ nitrogen-doped graphene-TiO2 nano-hybrid as an efficient photocatalyst for pollutant degradation

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Evaluation of N-doped graphene role in the visible-light driven photodegradation of sulfamethoxazole by a TiO2-silver-graphene composite

Cited by 8 publications

References 33 publications

Preparation and Photocatalytic Activities of TiO2-Based Composite Catalysts

Preparation and Photocatalytic Activities of TiO2-Based Composite Catalysts

Construction of a Double Z‐Scheme CuO/Cu2O/CuS/ZnO Quaternary Heterojunction Photocatalyst with Enhanced Solar‐Driven Photocatalytic Performance for Sulfamethoxazole Degradation

In situ nitrogen-doped graphene-TiO2 nano-hybrid as an efficient photocatalyst for pollutant degradation

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Construction of a Double Z‐Scheme CuO/Cu₂O/CuS/ZnO Quaternary Heterojunction Photocatalyst with Enhanced Solar‐Driven Photocatalytic Performance for Sulfamethoxazole Degradation