Removal of alprazolam from aqueous solutions by heterogeneous photocatalysis: Influencing factors, intermediates, and products

Finčur, Nina; Krstić, Jugoslav; Šibul, Filip; Šojić, Daniela V.; Despotović, Vesna; Banić, Nemanja; Agbaba, Jasmina; Abramović, Biljana F.

doi:10.1016/j.cej.2016.09.008

Cited by 66 publications

(22 citation statements)

References 42 publications

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“…This is not surprising taking into account that both materials transferred to the sample holder for porosimetry measurements are powders. Therefore, in first runs the applied pressure forced mercury to compact powders beside intrusion in pore system …”

Section: Resultssupporting

confidence: 93%

Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Nikolić

Vasiljević

Luković

et al. 2019

Int J Applied Ceramic Tech

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Zinc ferrite nanocrystalline powder was obtained by solid state synthesis of starting zinc oxide and hematite nanopowders. Field emission scanning electron microscopy and transmission electron microscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy and Raman spectroscopy confirmed the formation of nanocrystalline zinc‐ferrite powder with a mixed spinel structure with small amounts of remaining zinc oxide and hematite as impurities. Thick film paste was formed and screen printed on test interdigitated PdAg electrodes on alumina substrate. Formation of a porous nanocrystalline structure was confirmed by scanning electron microscopy and Hg porosimetry. Humidity sensing properties of zinc ferrite thick films were investigated by monitoring the change in impedance in the relative humidity interval 30%‐90% in the frequency range 42 Hz‐1 MHz at room temperature (25°C) and 50°C. At 42 Hz at both analyzed temperatures the impedance reduced ~46 times in the humidity range 30%‐90%. The dominant influence of grain boundaries was confirmed by analysis of complex impedance with an equivalent circuit.

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Section: Resultssupporting

confidence: 93%

Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Nikolić

Vasiljević

Luković

et al. 2019

Int J Applied Ceramic Tech

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“…Among the advanced oxidation processes (AOPs), heterogeneous photocatalysis is considered as an efficient method for the degradation of organic pollutants in water and air [1,2]. Numerous semiconductors have been investigated as photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Photocatalytic Activity of Titania by Co-Doping with Mo and W

et al. 2018

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Various W and Mo co-doped titanium dioxide (TiO2) materials were obtained through the EISA (Evaporation-Induced Self-Assembly) method and then tested as photocatalysts in the degradation of 4-chlorophenol. The synthesized materials were characterized by thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy (RS), N2 physisorption, UV-vis diffuse reflectance spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). The results showed that the W-Mo-TiO2 catalysts have a high surface area of about 191 m2/g, and the presence of an anatase crystalline phase. The co-doped materials exhibited smaller crystallite sizes than those with one dopant, since the crystallinity is inhibited by the presence of both species. In addition, tungsten and molybdenum dopants are distributed and are incorporated into the anatase structure of TiO2, due to changes in red parameters and lattice expansion. Under our experimental conditions, the co-doped TiO2 catalyst presented 46% more 4-chlorophenol degradation than Degussa P25. The incorporation of two dopant cations in titania improved its photocatalytic performance, which was attributed to a cooperative effect by decreasing the recombination of photogenerated charges, high radiation absorption capacity, high surface areas, and low crystallinity. When TiO2 is co-doped with the same amount of both cations (1 wt.%), the highest degradation and mineralization (97% and 74%, respectively) is achieved. Quinones were the main intermediates in the 4-chlorophenol oxidation by W-Mo-TiO2 and 1,2,4-benzenetriol was incompletely degraded.

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“…Os estudos foram realizados com 20 mL de ALP (0,03 mmol L -1 ). 20 Gabarron et al (2016) estudaram o comportamento da adsorção de fármacos psiquiatricos com carvão ativado granular e relataram remoções de praticamente 100 % para alprazolam, diazepam e lorazepam e 80 % para carbamazepina, apontando para a eficiência da utilização de carvões ativados para a remoção destes fármacos. 21 Sendo assim, os resíduos industriais carbonáceos podem ser adsorventes alternativos na remoção de poluentes em efluentes.…”

Section: Introductionunclassified

Removal of Alprazolam in Contaminated Waters: Evaluation of Alternative Adsorbents

Pereira

Nascimento²,

Nunes³

et al. 2019

Rev. Virtual Quim

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The presence of drugs in aquatic environments is an emerging problem, since the removal of drugs in conventional water and sewage treatment systems has not shown to be efficient. The application of alternative adsorbent materials may be a resource to be exploited in economically viable treatment processes. Materials that are normally discarded in nature, such as industrial waste, can be reused in treatment systems, improving their efficiency and adding value to industrial waste. Examples of these are boiler shell residues, Resíduo de casca de caldeira (RCC) in Portuguese, which is a non-activated carbonaceous material, from the burning of biomass to generate heat, and a residue generated in the process of bleaching chewable candies (activated charcoal of pinus with diatomaceous earth, carvão ativado pulverizado de pinus com terra diatomácea-DT, 70:30 in portuguese) used in food industries. In this work, we sought the removal of Alprazolam in aqueous media through the use of these adsorbent materials. The adsorbents were characterized as their physico-chemical properties and adsorption studies in batch and fixed bed columns were performed to evaluate their efficiency. The results obtained for the characterization were: Surface area of the CAPP / TD: 217.4 m 2 g-1 and the RCC of 349.54 m 2 g-1 , both presented pHpcz above of 8 and basic pH. The CAPP / TD presented higher particle sizes, lower iodine number and higher amount of ash when compared to RCC. The batch studies showed ALP removal of 69 % in 60 min and 85 % in 90 min for RCC and CAPP / TD, respectively. The best conditions for the removal of ALP in fixed bed were pH = 6; T = 30 °C; V = 1.3 mL min-1 for RCC and pH = 4; T = 25 °C; V = 0.56 mL min-1 for CAPP / TD. For both residues, no matrix interference was observed. The study demonstrated that both adsorbents were efficient for the removal of ALP, and can be applied for the treatment of the environmental aqueous samples.

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Removal of alprazolam from aqueous solutions by heterogeneous photocatalysis: Influencing factors, intermediates, and products

Cited by 66 publications

References 42 publications

Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Enhanced Photocatalytic Activity of Titania by Co-Doping with Mo and W

Removal of Alprazolam in Contaminated Waters: Evaluation of Alternative Adsorbents

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Removal of alprazolam from aqueous solutions by heterogeneous photocatalysis: Influencing factors, intermediates, and products

Cited by 66 publications

References 42 publications

Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Enhanced Photocatalytic Activity of Titania by Co-Doping with Mo and W

Removal of Alprazolam in Contaminated Waters: Evaluation of Alternative Adsorbents

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Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing