Fe-doped TiO2 nanomaterials for water depollution

Crışan, Maria; Ianculescu, A.; Crışan, D.; Drăgan, Nicolae; Todan, Ligia; Niţoi, Ines; Oancea, Petruţa

doi:10.1016/b978-0-12-819941-1.00010-9

Cited by 3 publications

(1 citation statement)

References 116 publications

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“…[26,27] This is because the precipitation of TiO2 could also be slowed down by acid resulting in the formation of finer crystals, which reduces the effect of the various amount of Fe 3+ dopant on the crystallite size. [25,28,29] Table The morphologies of the as-prepared samples were analyzed by SEM and TEM to investigate the effect of acid concentration on their structures. As can be seen in Figure 3 It is well-known that pure TiO2 nanomaterials are usually white powders, and the light brown color of samples observed could be attributed to the iron doping.…”

Section: Tiocl2 (Aq) + H2o (L) → Tio2 (S) + 2 Hcl (Aq)mentioning

confidence: 99%

An economic approach to produce iron doped TiO2 nanorods from ilmenite for photocatalytic applications

Shao

Love

et al. 2021

Journal of Alloys and Compounds

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Section: Tiocl2 (Aq) + H2o (L) → Tio2 (S) + 2 Hcl (Aq)mentioning

confidence: 99%

An economic approach to produce iron doped TiO2 nanorods from ilmenite for photocatalytic applications

Shao

Love

et al. 2021

Journal of Alloys and Compounds

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Z-Scheme Heterojunction of Phosphorus-Doped Carbon Nitride/Titanium Dioxide: Photocatalytic Performance

Yang,

Zhang,

Liu

et al. 2024

Molecules

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With increasingly serious environmental pollution problems, the development of efficient photocatalytic materials has become a hotspot in current research. This study focused on phosphorus-doped carbon nitride/titanium dioxide (PCT) Z-type heterojunctions, aiming to deeply investigate their photocatalytic degradation and photosensitive antimicrobial properties. A PCT Z-type heterojunction was successfully fabricated using melamine phosphate, cyanuric acid, and titanium dioxide. The structure, morphology, and optical properties of PCT Z-type heterojunctions were explored by FTIR, XRD, XPS, BET, SEM, UV-Vis DRS, TEM, EIS, and PL. A comprehensive and in-depth analysis of the structure, morphology, and optical properties of PCT Z-type heterojunctions was carried out. The photocatalytic degradation experiments revealed that PC3T Z-type heterojunctions exhibited an excellent degradation capability for methylene blue (MB) under visible light. The effect of PC3T on the adsorption–photocatalytic degradation of MB is more than 1.5 times that of a single titanium dioxide and P-doped carbon nitride. In the photosensitive antimicrobial performance study, PC3T reduced the survival rate of E. coli to 7%, after 120 min. Through free radical trapping experiments, it was shown that the hydroxyl radicals and superoxide radicals exerted an influence on the photocatalytic process. This study offers new ideas and approaches to address environmental pollution problems and holds significant theoretical and applied value.

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Comparative Study on UV-AOPs for Efficient Continuous Flow Removal of 4-tert-Butylphenol

Mergenbayeva

Poulopoulos

2021

Processes

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In the present study, UV-light-driven advanced oxidation processes (AOPs) have been employed for the degradation of 4-tert-Butylphenol (4-t-BP) in water under continuous flow conditions. The effects of varying space time (10, 20, 40, 60 and 120 min) and oxidant dosage (88.3 mg/L, 176.6 mg/L and 264 mg/L) were examined. 4-t-BP degradation efficiency in the UV-induced AOPs followed the order of UV/H2O2 (264.9 mg/L) ≈ UV/Fe2+/H2O2 > UV/Fe3+/H2O2 > UV/H2O2 (176.6 mg/L) > UV/H2O2 (88.3 mg/L) > UV/Fe-TiO2 > UV/TiO2 > UV, while UV/Fe3+/H2O2 was the most efficient process in terms of Total Organic Carbon (TOC) removal (at the space time of 60 min) among those tested. The combination of UV with 88.3 mg/L H2O2 enhanced pollutant removal from 51.29% to 93.34% after 10 min of irradiation. The presence of H2O2 contributed to the highest 4-t-BP and TOC removal values. Interestingly, the increase in space time from 20 to 60 min resulted in surpassing of the activity of the Fe-TiO2 over commercial TiO2, although it had an almost negligible positive impact on the performance of the UV/H2O2 system as well as H2O2 concentration. The results obtained showed that more than 80% of 4-t-BP could be successfully degraded by both heterogeneous and homogeneous AOPs after 60 min.

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Fe-doped TiO2 nanomaterials for water depollution

Cited by 3 publications

References 116 publications

An economic approach to produce iron doped TiO2 nanorods from ilmenite for photocatalytic applications

An economic approach to produce iron doped TiO2 nanorods from ilmenite for photocatalytic applications

Z-Scheme Heterojunction of Phosphorus-Doped Carbon Nitride/Titanium Dioxide: Photocatalytic Performance

Comparative Study on UV-AOPs for Efficient Continuous Flow Removal of 4-tert-Butylphenol

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