Alternative synthesis of nitrogen and carbon co-doped TiO2 for removing fluoroquinolone antibiotics in water under visible light

Huang, Xinwen; Yang, Wanquan; Zhang, Geshan; Yan, Liang; Zhang, Yongcai; Jiang, Anhua; Xu, Honglei; Zhou, Min; Liu, Zongjian; Tang, Haodong; Dionysiou, Dionysios D.

doi:10.1016/j.cattod.2019.10.034

Cited by 31 publications

(17 citation statements)

References 54 publications

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“…Sarafraz et al [24], Hu et al [94], Li and Hu [96] found that h + and • OH played a major role in the CIP degradation process. At the same time, Li et al [97], Huang et al [98] and Du et al [99] confirmed h + and O 2…”

Section: Effect Of Phmentioning

confidence: 84%

Application of TiO2-Based Photocatalysts to Antibiotics Degradation: Cases of Sulfamethoxazole, Trimethoprim and Ciprofloxacin

2021

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The extensive application of antibiotics in human and veterinary medicine has led to their widespread occurrence in a natural aquatic environment. Global health crisis is associated with the fast development of antimicrobial resistance, as more and more infectious diseases cannot be treated more than once. Sulfamethoxazole, trimethoprim and ciprofloxacin are the most commonly detected antibiotics in water systems worldwide. The persistent and toxic nature of these antibiotics makes their elimination by conventional treatment methods at wastewater treatment plants almost impossible. The application of advanced oxidation processes and heterogeneous photocatalysis over TiO2-based materials is a promising solution. This highly efficient technology has the potential to be sustainable, cost-efficient and energy-efficient. A comprehensive review on the application of various TiO2-based photocatalysts for the degradation of sulfamethoxazole, trimethoprim and ciprofloxacin is focused on highlighting their photocatalytic performance under various reaction conditions (different amounts of pollutant and photocatalyst, pH, light source, reaction media, presence of inorganic ions, natural organic matter, oxidants). Mineralization efficiency and ecotoxicity of final products have been also considered. Further research needs have been presented based on the literature findings. Among them, design and development of highly efficient under sunlight, stable, recyclable and cost-effective TiO2-based materials; usage of real wastewaters for photocatalytic tests; and compulsory assessment of products ecotoxicity are the most important research tasks in order to meet requirements for industrial application.

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Section: Effect Of Phmentioning

confidence: 84%

Application of TiO2-Based Photocatalysts to Antibiotics Degradation: Cases of Sulfamethoxazole, Trimethoprim and Ciprofloxacin

2021

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“…e doping approach offers solutions for the two drawbacks of TiO 2 . Furthermore, compared with single-doped TiO 2 photocatalysts, the doped TiO 2 with two or more elements showed higher enhancement photocatalytic activity due to the beneficial synergy effect from the multi-dopants [14,18,[21][22][23][24]26].…”

Section: Introductionmentioning

confidence: 97%

“…An intensive effort has been directed to narrow the gap in the semiconductor structure of TiO 2 , that is by doping mono-nonmetallic elements including N [1,[3][4][5][6][7][8][9][10], S [2,15], and C [12,16], as well as double nonmetallic dopants, such as C-S [17], N-S [18,19], N-P [14,20], and C-N [13,[21][22][23][24][25]. All of the authors have found that the doping could noticeably enhance the visible light absorption and corresponding photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

“…Among the two dopant combinations, the double dopants of C-N are believed to be of high interest because it possesses both enhanced visible light absorption and separation efficiency of electron-hole pairs, which can contribute remarkably to improving photocatalytic activity [13,[21][22][23][24][25]. Many studies have focused on the preparation of C,N-doped TiO 2 , which frequently introduced two sources for the respective double dopants such as CCl 4 and polyaniline [15], nitric acid and nonionic surfactant [22], and nitrate acid and acetylacetone [24]. Using a single source including diaminopyridine [13], polyaniline [21], and tetramethylammonium hydroxide [23] has gained a satisfactory result in constructing C,N co-doped TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

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Removal of the Hazardous Congo Red Dye through Degradation under Visible Light Photocatalyzed by C,N Co-Doped TiO2 Prepared from Chicken Egg White

Aprilita

Amalia

Wahyuni

2022

The Scientific World Journal

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The C,N co-doped TiO2 photocatalyst was prepared by interacting the chicken egg white having various weights (1, 2, and 4 g) with 1 g of TiO2 in an autoclave through the hydrothermal process at 150°C. The C,N co-doped TiO2 photocatalysts were characterized using Fourier transform infrared (FTIR), X-ray diffraction (XRD), specular reflectance UV/visible (SRUV/Vis), and transmission electron microscope (TEM) instruments. The photocatalytic activity of the co-doped TiO2 was evaluated by monitoring the photo-decolorization of Congo red dye under visible light through a batch experiment. The characterization results assigned that the C and N atoms from the chicken egg white have been successfully co-doped into TiO2 through interstitial and substitutional combination, which could notably narrow their band gap energy entering into the visible region. In line with the gap narrowing, the co-doping C,N into TiO2 could remarkably improve the photocatalytic activity under visible light in the dye photo-decolorization. The enhancement of the photocatalyst activity of TiO2-C,N was controlled by the weight of the egg white introduced, and 2 g of the egg white resulted in the highest activity. Further, the best dye photo-decolorization, which was about 98%, of 10 mg/L Congo red dye in 100 mL of the solution under visible irradiation could be reached by applying TiO2-C,N prepared from 2 g of the egg white, within 45 min, at pH 7, and 50 mg of the photocatalyst mass.

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“…However, the photocatalytic efficiencies of the photocatalytic materials can be significantly improved if the photocatalyst could absorb light in visible region which comprises around 43% of the solar spectrum. Several strategies have been successful developed to narrow the energy band gap of semiconducting TiO2 including the doping of metallic and/or non-metallic species, the formation of heterojunctions, as well as the generation of defects [7][8][9][10][11][12][13][14][15][16]. However, other challenges, such as the inaccessibility of the photocatalytic active sites due to the formation of agglomerates of TiO2 nanoparticles, inevitably limit the photodegradation performance of the photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Metal-organic framework derived multi-functionalized and co-doped TiO2/C nanocomposites for excellent visible-light photocatalysis

Hussain

Yang

Khalil

et al. 2022

Journal of Materials Science & Technology

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Alternative synthesis of nitrogen and carbon co-doped TiO2 for removing fluoroquinolone antibiotics in water under visible light

Cited by 31 publications

References 54 publications

Application of TiO2-Based Photocatalysts to Antibiotics Degradation: Cases of Sulfamethoxazole, Trimethoprim and Ciprofloxacin

Application of TiO2-Based Photocatalysts to Antibiotics Degradation: Cases of Sulfamethoxazole, Trimethoprim and Ciprofloxacin

Removal of the Hazardous Congo Red Dye through Degradation under Visible Light Photocatalyzed by C,N Co-Doped TiO2 Prepared from Chicken Egg White

Metal-organic framework derived multi-functionalized and co-doped TiO2/C nanocomposites for excellent visible-light photocatalysis

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