Ionic liquid/TiO<sub>2</sub>nanoparticles doped with non-expensive metals: new active catalyst for phenol photodegradation

Fischer, Daiane Kessler; Fraga, Karina Rodrigues de; Scheeren, Carla Weber

doi:10.1039/d1ra08459c

Cited by 9 publications

(9 citation statements)

References 52 publications

(84 reference statements)

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“…The energy difference is 0.38 eV which established the visible light absorption and evidenced the production of photo-charge carriers. The generations of charge carriers increased the free radicals and enhanced the recombination activity, which provoked efficient catalytic degradation activity [52]. The radical generation promotes bactericidal activity and is highly appreciable in biomedical developments.…”

Section: Uv-drs Analysismentioning

confidence: 99%

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

et al. 2022

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Activated carbon doping TiO2 nanoparticles were synthesised by zapota leaf extract using the co-precipitation method. The bio-constituents of plant compounds were used in the reactions of stabilization and reductions. The carbon loading on the TiO2 nanoparticles was characterised by XRD, FTIR, UV-DRS, SEM with EDX, and TEM analysis. The loading of activated carbon onto the TiO2 nanoparticles decreased the crystallite size and optical bandgap, and their doping improved the surface structure of AC/TiO2 nanoparticles. Mesoporous/microporous instability was remodified from the activated carbon, which was visualised using SEM and TEM analysis, respectively. The photocatalytic dye degradation of Rh-B dye was degraded in TiO2 and AC/TiO2 nanoparticles under visible light irradiation. The degradation efficiencies of TiO2 and AC/TiO2 nanoparticles were 73% and 91%, respectively. The bacterial abilities of TiO2 and AC/TiO2 nanoparticles were examined by E. coli and S. aureus. The water reclamation efficiency and bactericidal effect of TiO2 and AC/TiO2 nanoparticles were examined via catalytic dye degradation and bacterial efficiency of activated carbon-doped titanium dioxide nanoparticles.

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Section: Uv-drs Analysismentioning

confidence: 99%

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

et al. 2022

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“…Figure 5 b was used to determine the band gap energy of the sample using the Kubelka–Munk formula. This involved plotting the relationship between (ahv) 2 and photon energy (hv) [ 38 ]. The band gap (Eg) of pure TiO 2 was evaluated to be 3.2 (±0.06) eV.…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic Degradation of Gaseous Benzene Using Cu/Fe-Doped TiO2 Nanocatalysts under Visible Light

Tian,

Zhang,

Tian

et al. 2023

Molecules

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Visible-light-enhanced TiO2 nanocatalysts doped with Cu and Fe were synthesized using the sol–gel method to investigate their performance in degrading gaseous benzene. The structure and morphology of mono- and co-doped TiO2 (i.e., Cu/Fe-TiO2, Cu-Fe-TiO2) were characterized using SEM, EDS, XRD, BET, Raman, UV-vis-DRS, and XPS techniques. The results indicated that the presence of Cu/Fe mono- and co-doped TiO2 leads to the formation of an anatase phase similar to pure TiO2. Furthermore, the introduction of Cu/Fe enhanced the presence of lattice defects and increased the specific surface area of TiO2. This enhancement can be attributed to the increase in oxygen vacancies, especially in the case of Cu-Fe-TiO2. Additionally, Cu-Fe-TiO2 showed a higher concentration of surface-bound hydroxyl groups/chemically adsorbed oxygen and a narrower bandgap than pure TiO2. Consequently, Cu-Fe-TiO2 exhibited the highest photocatalytic performance of 658.33 μgC6H6/(g·h), achieving a benzene degradation rate of 88.87%, surpassing that of pure TiO2 (5.09%), Cu-TiO2 (66.92%), and Fe-TiO2 (59.99%). Reusability tests demonstrated that Cu-Fe-TiO2 maintained a high benzene degradation efficiency of 71.4%, even after five experimental cycles, highlighting its exceptional stability and reusability. In summary, the addition of Cu/Fe to TiO2 enhances its ability to degrade gaseous benzene by prolonging the catalyst’s lifespan and expanding its photoresponse range to include visible light.

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“…To deal with this environmental pollution, the industrial effluents from soap and cosmetics factories must be analysised before discharging them is necessary. In recent years, the scientific community has focused on the treatment of soap and cosmetic effluents in order to provid a suitable solution to the management of this type of liquid waste [14]. Processes (physical, chemical and advanced oxidation) have shown their effectiveness in the Int.…”

Section: Introductionmentioning

confidence: 99%

“…J. Multidiscip. Technovation, 5(1) (2023) 13-20 | 14 treatment of this type of effluent [14,15]. However, these processes are expensive so that is why they mostly remained at the experimental stage without being valorized.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Soap and Cosmetic Effluents quality in Metallic Trace Elements from Yopougon Industrial Area, Abidjan, Ivory Coast

J.M

Zougranaa

Lamoussa³

et al. 2023

Int. Res. J. multidiscip. Technovation

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In this study, the concentrations (mg / L) of trace metal elements (TME) in an effluent from an industrial soap and cosmetic unit (SCI11) were evaluated. Four (4) composite samples and a witness sample (1) were collected. Nine (9) physicochemical parameters (T, pH, EH, SS, Al, Cr, Fe, Pb, and Zn) were analyzed according to AFNOR standards.The results showed that these effluents are characterized by high mean concentrations of suspended solids (266.75 ± 147.20 mg / L and Cr (0.678 ± 0.068 mg / L) which are far beyond the reference values of the Service Inspection of Classified Installations (SIIC). On the other hand, the mean concentrations of TME Fe, Al, Zn, respectively at 0.585 ± 0.03 mg / L, 0.618 ± 0.030 mg / L, and 0.244 ± 0.015 mg / L are in agreement with the SIIC reference values. The study also found that the effluent is behaving like a reducer with a mean EH redox potential of (-13 ± 1.87 mV). Mean values of pH (6.67 ± 0.60) and temperature T (29.58 ± 0.82 ° C) are in the order of the values recommended by the SIIC. Overall, the PCA analysis has shown that this effluent is a source of TME pollution and physical SS pollution.

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Ionic liquid/TiO₂nanoparticles doped with non-expensive metals: new active catalyst for phenol photodegradation

Abstract: TiO2 nanoparticles were synthesized using 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMI·BF4) ionic liquid and doped with non-expensive metals Cu2+ and Fe3+ by the sol–gel method.

Cited by 9 publications

References 52 publications

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

Photocatalytic Degradation of Gaseous Benzene Using Cu/Fe-Doped TiO2 Nanocatalysts under Visible Light

Assessment of Soap and Cosmetic Effluents quality in Metallic Trace Elements from Yopougon Industrial Area, Abidjan, Ivory Coast

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Ionic liquid/TiO2nanoparticles doped with non-expensive metals: new active catalyst for phenol photodegradation

Abstract: TiO2 nanoparticles were synthesized using 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMI·BF4) ionic liquid and doped with non-expensive metals Cu2+ and Fe3+ by the sol–gel method.

Cited by 9 publications

References 52 publications

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

Photocatalytic Degradation of Gaseous Benzene Using Cu/Fe-Doped TiO2 Nanocatalysts under Visible Light

Assessment of Soap and Cosmetic Effluents quality in Metallic Trace Elements from Yopougon Industrial Area, Abidjan, Ivory Coast

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Ionic liquid/TiO₂nanoparticles doped with non-expensive metals: new active catalyst for phenol photodegradation