Pt–TiO 2 -assisted photocatalytic degradation of the cytostatic drugs ifosfamide and cyclophosphamide under artificial sunlight

Ofiarska, Aleksandra; Pieczyńska, Aleksandra; Borzyszkowska, Agnieszka Fiszka; Stepnowski, Piotr; Siedlecka, Ewa Maria

doi:10.1016/j.cej.2015.09.109

Cited by 80 publications

(21 citation statements)

References 38 publications

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“…Slightly higher yields are achieved when TTIP is used, as in previous works in the absence and presence of metal . This can be because TTIP is easily hydrolysable in the presence of humidity, even at ambient temperature, since it has four isopropoxy ligands joined to the Ti . As a consequence, the thermal and kinetic stability of TTIP molecules are inferior to those of DIPBAT and, therefore, more likely to react and lead to higher yields …”

Section: Resultsmentioning

confidence: 85%

“…[3][4][5][6] This can be because TTIP is easily hydrolysable in the presence of humidity, even at ambient temperature, since it has four isopropoxy ligands joined to the Ti. 36 As a consequence, the thermal and kinetic stability of TTIP molecules are inferior to those of DIPBAT and, therefore, more likely to react and lead to higher yields. 15 Synthesis experiments with ethanol as hydrolytic agent have also shown a slightly higher yield.…”

Section: Synthesis Yieldmentioning

confidence: 99%

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Improving the photo‐reduction of CO₂ to fuels with catalysts synthesized under high pressure: Cu/TiO₂

Camarillo

Tostón

Martínez

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND In previous studies the enhanced activity of TiO2‐based catalysts synthesized in supercritical medium for photocatalytic reduction of CO2 was proved. RESULTS In this study, Cu/TiO2 photocatalysts were synthesized by hydrothermal methods in supercritical CO2. Two titanium precursors [titanium tetraisopropoxide and diisopropoxititanium bis(acetylacetonate)], two alcohols (ethanol and isopropyl alcohol), and one metal precursor (Cu (II) acetylacetonate) were used in the synthesis. Catalysts produced showed improved properties in comparison with the commercial reference catalyst (Degussa P‐25, Evonik). CONCLUSIONS Specifically, it has been found that Cu/TiO2 catalysts may yield methane production rates 20 times larger than that of commercial TiO2 catalyst without diminishing CO production rate (about 5 times higher than that of commercial catalyst). This result has been mainly imputed to both the formation of oxygen vacancies during the synthesis in supercritical medium and the high capacity of copper to adsorb and activate CO2 molecules, while preventing CO molecules from reoxidation, and avoiding the competitive reaction of hydrogen formation. © 2017 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 85%

Section: Synthesis Yieldmentioning

confidence: 99%

Improving the photo‐reduction of CO₂ to fuels with catalysts synthesized under high pressure: Cu/TiO₂

Camarillo

Tostón

Martínez

et al. 2017

J of Chemical Tech & Biotech

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“…As investigated by Bu & Zhuang (2013) [218], copper-doped TiO 2 showed an effective degradation (86.4%) of chlortetracycline within 60 minutes of reaction. Similarly, Ofiarska et al (2016) demonstrated that platinum-doped TiO 2 can completely degrade cytostatic drugs, cy-clophosphamide and ifosfamide within an hour of simulated irradiations [219]. Recently, a 92.30% degradation of Bisphenol-A was obtained within 180 min of UV irradiation using iron-doped TiO 2 nanocomposite [220].…”

Section: Nano-tio 2 With Dopantsmentioning

confidence: 97%

Removal of Pharmaceutical Contaminants in Wastewater Using Nanomaterials: A Comprehensive Review

Chauhan

Sillu

Agnihotri

2019

CDM

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Background: The limitless presence of pharmaceutical contaminants in discharged wastewater has emerged as a threat to aquatic species and humans. Their presence in drinking water has although raised substantial concerns, very little is known about the fate and ecological impacts of these pollutants. As a result, these pollutants are inevitably introduced to our food chain at trace concentrations. Unfortunately, the conventional wastewater treatment techniques are unable to treat pharmaceuticals completely with practical limitations. The focus has now been shifted towards nanotechnology for the successful remediation of these persistent pollutants. Thus, the current review specifically focuses on providing readers brief yet sharp insights into applications of various nanomaterials for the removal of pharmaceutical contaminants. Methods: An exhaustive collection of bibliographic database was done with articles having high impact and citations in relevant research domains. An in-depth analysis of screened papers was done through standard tools. Studies were categorized according to the use of nanoscale materials as nano-adsorbents (graphene, carbon nanotubes), nanophotocatalysts (metal, metal oxide), nano-filtration, and ozonation for promising alternative technologies for the efficient removal of recalcitrant contaminants. Results: A total of 365 research articles were selected. The contemporary advancements in the field of nanomaterials for drinking and wastewater treatment have been thoroughly analyzed along with their future perspectives. Conclusion: The recommendations provided in this article will be useful to adopt novel strategies for on-site removal of the emerging contaminants in pharmaceutical effluents and related industries.

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“…AOPs including H 2 O 2 /UV or Fenton process are considered promising alternative techniques for the decomposition of poorly biodegradable micropollutants [6,7,8]. However, the application of AOPs to remove pharmaceuticals in wastewater and in single drug solutions led to different levels of effectiveness of individual drugs removal, as was previously proved [9,10,11]. Competition among organic compounds for •OH radical could cause the inhibition or acceleration of the drug oxidation rate in wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the inorganic anions e.g., Cl − , HCO 3 − , can also participate in reactions with •OH radicals, causing a decrease in their concentration available to remove organic matter. The presence of inorganic anions affects the degradation rate of drugs, which depends on their concentration and the type of used AOPs [10,11]. Therefore, the composition of wastewater should be taken into account when assessing the effectiveness of pollution removal by AOPs.…”

Section: Introductionmentioning

confidence: 99%

Insights into Mechanisms of Electrochemical Drug Degradation in Their Mixtures in the Split-Flow Reactor

et al. 2019

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The recirculating split-flow batch reactor with a cell divided into anolyte and catholyte compartments for oxidation mixture of cytostatic drugs (CD) was tested. In this study, kinetics and mechanisms of electrochemical oxidization of two mixtures: 5-FU/CP and IF/CP were investigated. The order of the CD degradation rate in single drug solutions and in mixtures was found to be 5-FU < CP < IF. In the 5-FU/CP mixture, kapp of 5-FU increased, while kapp of CP decreased comparing to the single drug solutions. No effect on the degradation rate was found in the CP/IF mixture. The presence of a second drug in the 5-FU/CP mixture significantly altered mineralization and nitrogen removal efficiency, while these processes were inhibited in IF/CP. The experiments in the different electrolytes showed that •OH and sulphate active species can participate in the drug’s degradation. The kapp of the drugs was accelerated by the presence of Cl− ions in the solution. Chlorine active species played the main role in the production of gaseous nitrogen products and increased the mineralisation. Good results were obtained for the degradation and mineralisation processes in mixtures of drugs in municipal wastewater-treated effluent, which is beneficial from the technological and practical point of view.

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Pt–TiO 2 -assisted photocatalytic degradation of the cytostatic drugs ifosfamide and cyclophosphamide under artificial sunlight

Cited by 80 publications

References 38 publications

Improving the photo‐reduction of CO₂ to fuels with catalysts synthesized under high pressure: Cu/TiO₂

Improving the photo‐reduction of CO₂ to fuels with catalysts synthesized under high pressure: Cu/TiO₂

Removal of Pharmaceutical Contaminants in Wastewater Using Nanomaterials: A Comprehensive Review

Insights into Mechanisms of Electrochemical Drug Degradation in Their Mixtures in the Split-Flow Reactor

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Pt–TiO 2 -assisted photocatalytic degradation of the cytostatic drugs ifosfamide and cyclophosphamide under artificial sunlight

Cited by 80 publications

References 38 publications

Improving the photo‐reduction of CO2 to fuels with catalysts synthesized under high pressure: Cu/TiO2

Improving the photo‐reduction of CO2 to fuels with catalysts synthesized under high pressure: Cu/TiO2

Removal of Pharmaceutical Contaminants in Wastewater Using Nanomaterials: A Comprehensive Review

Insights into Mechanisms of Electrochemical Drug Degradation in Their Mixtures in the Split-Flow Reactor

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Improving the photo‐reduction of CO₂ to fuels with catalysts synthesized under high pressure: Cu/TiO₂

Improving the photo‐reduction of CO₂ to fuels with catalysts synthesized under high pressure: Cu/TiO₂