Photocatalytic properties of Zr-doped titania in the degradation of the pharmaceutical ibuprofen

Choina, J.; Fischer, Ch.‐H.; Flechsig, Gerd‐Uwe; Kosslick, H.; Tuấn, Vũ Anh; Tuyen, Nguyen Duc; Tuyen, Nguyen-Huu-Hung; Schulz, Axel

doi:10.1016/j.jphotochem.2013.08.018

Cited by 47 publications

(17 citation statements)

References 40 publications

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“…Furthermore, the Ag/TiO 2 films were quite stable during the reaction with no significant loss of activity after 10 runs. Recently, Choina and co-workers 268 have studied the effect of Zr-doped anatase titania prepared by sol-gel and chemical vapour deposition methods in the oxidative decomposition of Ibuprofen (IBP). The obtained photocatalytic material shows a high initial activity and exhibits improved adsorption properties in aqueous solution.…”

Section: Photocatalytic Energy Technologiesmentioning

confidence: 99%

Mesoporous materials for clean energy technologies

et al. 2014

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Alternative energy technologies are greatly hindered by significant limitations in materials science. From low activity to poor stability, and from mineral scarcity to high cost, the current materials are not able to cope with the significant challenges of clean energy technologies. However, recent advances in the preparation of nanomaterials, porous solids, and nanostructured solids are providing hope in the race for a better, cleaner energy production. The present contribution critically reviews the development and role of mesoporosity in a wide range of technologies, as this provides for critical improvements in accessibility, the dispersion of the active phase and a higher surface area. Relevant examples of the development of mesoporosity by a wide range of techniques are provided, including the preparation of hierarchical structures with pore systems in different scale ranges. Mesoporosity plays a significant role in catalysis, especially in the most challenging processes where bulky molecules, like those obtained from biomass or highly unreactive species, such as CO2 should be transformed into most valuable products. Furthermore, mesoporous materials also play a significant role as electrodes in fuel and solar cells and in thermoelectric devices, technologies which are benefiting from improved accessibility and a better dispersion of materials with controlled porosity.

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Section: Photocatalytic Energy Technologiesmentioning

confidence: 99%

Mesoporous materials for clean energy technologies

et al. 2014

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“…To the best of our knowledge, there are no studies reporting synthesis of Zr-doped titania via modified sol-gel method using zirconium(IV) oxychloride octahydrate as a precursor, while only a few papers investigated the influence of doping on catalyst activity of titania and photocatalytic reactions of degradation/decolourization of the selected organic dye [11,12,[14][15][16]. The present study reports economical and environmentally friendly method for obtaining TiO 2 -based powders by using modified sol-gel method.…”

Section: Introductionmentioning

confidence: 87%

Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters

Vasic

Randjelovic

Momčilović

et al. 2016

PAC

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In this study, modified sol-gel method was employed to synthesize the pure and Zr-doped titania catalysts. Brunauer-Emmett-Teller (BET) method was applied to determine porosity, X-ray diffraction (XRD) analysis was used to study crystal structure, scanning electron microscopy (SEM) was used to investigate morphology and Fourier transform infrared spectroscopy (FTIR) was used to examine surface properties/total acidity of the obtained catalysts samples. Photocatalytic activity was tested in the reaction of crystal violet (CV) dye decolourization/degradation under UV light irradiation. The effects of several photocatalysis operational parameters were considered, such as catalyst dosage, initial dye concentrations, duration of UV irradiation treatment, as well as catalysts calcination temperatures and dopant amounts. The obtained results indicated faster dye decolourization/degradation with the increase of the catalyst dosage and the decrease of initial CV concentrations. The Zr-doping affects photocatalytic properties, i.e. CV decolourization/degradation of the prepared catalytic materials. Thus, addition of 5 wt.% of ZrO 2 to titania increases photocatalytic effect for ∼15% and addition of 10 wt.% of ZrO 2 improves the photocatalytic efficiency of titania for nearly 30%.

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“…Some works report the photocatalytic performance of mesoporous TiO2 where the higher porosity and higher specific surface area should play a prominent role: for instance, Zr-doped mesoporous TiO2 was tested for the degradation of ibuprofen and other (mainly anti-inflammatory) pharmaceuticals [46]. It was found that the material shows improved adsorption of the pollutants from the solution and high initial photocatalytic activity.…”

Section: Photocatalysis and Other Advanced Oxidation Processesmentioning

confidence: 99%

Nanomaterials for the Abatement of Pharmaceuticals and Personal Care Products from Wastewater

2018

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Abstract:In this short-review, the most common types of both pharmaceutical and personal care products (PPCP, a class of "emerging pollutants") are considered, as well as some of the most frequent methods for their removal that envisage the use of nanomaterials. The nanomaterials used in conservative methods (namely, reverse osmosis, nanofiltration and adsorption) are basically nanoporous solids. Non-conservative methods, which include photocatalysis and Fenton reaction, are currently considered more promising than conservative ones, as the former allow the (at least) partial degradation of the original molecules into more biodegradable by-products, which can be further abated by subsequent biological treatments, whereas the former are not efficient for the removal of small quantities of pollutants and have to be regenerated.

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Photocatalytic properties of Zr-doped titania in the degradation of the pharmaceutical ibuprofen

Cited by 47 publications

References 40 publications

Mesoporous materials for clean energy technologies

Mesoporous materials for clean energy technologies

Degradation of crystal violet over heterogeneous TiO2-based catalysts: The effect of process parameters

Nanomaterials for the Abatement of Pharmaceuticals and Personal Care Products from Wastewater

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