ZnO/ZrO<sub>2</sub> composites: synthesis characterization and photocatalytic performance in the degradation of oxytetracycline antibiotic

Vai̇zoğullar, Ali İmran

doi:10.1080/10667857.2019.1574287

Cited by 18 publications

(5 citation statements)

References 36 publications

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“…nanocrystals, due to their high surface/volume ratio [58,59]. It is worth noting that the Eg values obtained in our study are comparable with most of the ones reported in samples prepared by others processes [60][61][62], and have even more similarity with those reported for ZrO2 thin films prepared by Carević et al (4.10 eV) [63] and Vaizoğullar (4.11 eV) [64].…”

Section: Uv-vissupporting

confidence: 90%

The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO2 Thin Films and How Affects the Hydrophilicity

et al. 2020

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Zirconium oxide (ZrO2) thin films were prepared by the sol-gel dip coating technique, in combination with annealing at different temperatures in air atmosphere, with the final goal of studying the water wettability of the surface. The annealing effects on the structural and optical properties of the ZrO2 films were investigated to check the characteristics of the material. X-ray diffraction (XRD) patterns of ZrO2 annealed at 450 °C and 550 °C show the formation of tetragonal phase, with layers constituted by nanoparticles with average particle size of 21 nm and 25 nm, respectively. Fourier-transform infrared spectroscopy (FT-IR) spectra revealed the presence of vibrational modes associated to ZrO2. Photoluminescence (PL) and ultraviolet-visible spectroscopy (UV–Vis) spectroscopy was used for optical properties. All deposited ZrO2 thin films presented a high optical transparency, with an average transmittance above 70% in the visible range (400–700 nm). The hydrophilic properties of ZrO2 films were characterized by means of the measurements of the contact angle. When the sample was annealed at 550 °C, the hydrophilicity reached the best behavior, which was explained as an effect of the structural and morphological change of the films.

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Section: Uv-vissupporting

confidence: 90%

The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO2 Thin Films and How Affects the Hydrophilicity

et al. 2020

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“…Nowadays, adsorption or catalytic oxidation methods, such as the use of natural zeolite, bentonite, activated carbon, carbon nanotubes, biochar, etc., are usually used to remove antibiotics from the water environment [ 164 ]. Membrane filtration, oxidation, photocatalysis, and biodegradation can also be used for antibiotic removal [ 165 ]. The scientific community has been researching the removal of antibiotics by various nanomaterials such as graphene for a long time [ 166 ].…”

Section: Pollutant Degradationmentioning

confidence: 99%

Recent Progress in Multifunctional Graphene-Based Nanocomposites for Photocatalysis and Electrocatalysis Application

et al. 2023

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The global energy shortage and environmental degradation are two major issues of concern in today’s society. The production of renewable energy and the treatment of pollutants are currently the mainstream research directions in the field of photocatalysis. In addition, over the last decade or so, graphene (GR) has been widely used in photocatalysis due to its unique physical and chemical properties, such as its large light-absorption range, high adsorption capacity, large specific surface area, and excellent electronic conductivity. Here, we first introduce the unique properties of graphene, such as its high specific surface area, chemical stability, etc. Then, the basic principles of photocatalytic hydrolysis, pollutant degradation, and the photocatalytic reduction of CO2 are summarized. We then give an overview of the optimization strategies for graphene-based photocatalysis and the latest advances in its application. Finally, we present challenges and perspectives for graphene-based applications in this field in light of recent developments.

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“…Tetracycline antibiotics are the most widely used antibiotics, commonly found in domestic sewage, medical wastewater, animal feed, and aquaculture wastewater discharge [1,2]. Research has been reported on eliminating antibiotics through membrane filtration, oxidation, photocatalysis, and biodegradation, which are costly, timeconsuming, and complex [3]. The application of mesoporous materials or nanomaterials, such as activated carbon, graphene, and graphene oxide (GO), for adsorption is one of the most attractive methods for removing antibiotics [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…GO is found to be a two-dimensional material obtained from the oxidation and exfoliation chemistry of graphite graphene [9], which contains sp 2 hybrid carbon atoms in graphene and sp 3 hybrid carbon atoms formed through the interruption of carbon-carbon double bonds by oxygen-containing functional groups [10]. Therefore, a large number of oxygen atoms exist on the surface of GO in the form of epoxy and carboxyl groups [11], making it highly hydrophilic and showing the potential of acting as an adsorbent [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of pH on Adsorption of Tetracycline Antibiotics on Graphene Oxide

Jiang

Wang

et al. 2023

IJERPH

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Graphene oxide (GO) has good dispersibility and adsorption capacity for antibiotics adsorption, a complex process influenced by many factors. In this work, the adsorption mechanism of GO on tetracycline antibiotics at different pH was studied to address its attenuated effects on the microbial growth. The results showed that the adsorption process of GO on three antibiotics, namely, tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC), followed the pseudo-second-order kinetic model. The maximum adsorption capacities were observed at pH5 which were 133.0 mg/g for TC, 125.4 mg/g for OTC, and 167.0 mg/g for CTC. Furthermore, the reaction was uniform adsorption with a single layer on the surface of GO, and heating was conducive to the reaction. In the microbial growth experiment, the growth of E. coli and B. subtilis senses was optimal at pH5, which was consistent with the adsorption experiment. This study analyzed the effect of pH on the adsorption of antibiotics by GO and provided a theoretical basis for the further application of GO in various aquatic environments.

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ZnO/ZrO₂ composites: synthesis characterization and photocatalytic performance in the degradation of oxytetracycline antibiotic

Cited by 18 publications

References 36 publications

The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO2 Thin Films and How Affects the Hydrophilicity

The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO2 Thin Films and How Affects the Hydrophilicity

Recent Progress in Multifunctional Graphene-Based Nanocomposites for Photocatalysis and Electrocatalysis Application

Effect of pH on Adsorption of Tetracycline Antibiotics on Graphene Oxide

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ZnO/ZrO2 composites: synthesis characterization and photocatalytic performance in the degradation of oxytetracycline antibiotic

Cited by 18 publications

References 36 publications

The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO2 Thin Films and How Affects the Hydrophilicity

The Influence of Annealing Temperature on the Structural and Optical Properties of ZrO2 Thin Films and How Affects the Hydrophilicity

Recent Progress in Multifunctional Graphene-Based Nanocomposites for Photocatalysis and Electrocatalysis Application

Effect of pH on Adsorption of Tetracycline Antibiotics on Graphene Oxide

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ZnO/ZrO₂ composites: synthesis characterization and photocatalytic performance in the degradation of oxytetracycline antibiotic