Simple modification of titanium(IV) oxide for the preparation of a reusable photocatalyst

Musiał, Joanna; Krakowiak, Rafał; Frankowski, Robert; Spychała, Marcin; Długaszewska, Jolanta; Dobosz, Bernadeta; Bendzińska-Berus, Wioletta; Krzyminiewski, Ryszard; Tykarska, Ewa; Zgoła‐Grześkowiak, Agnieszka; Gośliński, Tomasz; Mlynarczyk, Dariusz T.; Stanisz, Beata

doi:10.1016/j.mseb.2021.115559

Cited by 13 publications

(10 citation statements)

References 53 publications

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“…Thermogravimetric analysis showed no mass loss for the commercial P25 sample up to 900 °C ( Figure 3 , green), demonstrating the high thermal stability of the used nanoparticles. This result contrasts with the TGA analysis reported earlier for a sample of pure anatase with 40 nm nanoparticles size, for which significant mass loss associated with water evaporation was observed before 120 °C [ 18 ]. In the range 250–550 °C, the Pz@P25 lost 3.6% (0.4 mg) of the mass ( Figure 3 ).…”

Section: Resultscontrasting

confidence: 99%

“…The preliminary studies showed that solely using UV (365 nm) light can cause fast bleaching of the macrocyclic photosensitizer grafted on the titania surface due to the formation of hydroxyl radicals, which can destroy the porphyrinoid. On the other hand, based on the results obtained by Musial et al, no photodegradation of substrate (ibuprofen and naproxen) was observed when red light (665 nm) was used [ 18 ].…”

Section: Resultsmentioning

confidence: 99%

“…An interesting issue is using some photocatalysts for the photoremediation of common pollutants. Among others, titanium(IV) oxide has been widely considered a potential photocatalyst in the photodegradation of organic compounds as a component of hybrid systems, mineral or surface-functionalized carriers [ 16 , 17 , 18 ]. Its unique feature relies on the photoactivity after irradiation with UV light, which results in the potential application of titanium(IV) oxide in the advanced oxidation processes (AOP)—a new technique for the photodegradation of pollutants [ 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

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Photocatalytic Activity of Sulfanyl Porphyrazine/Titanium Dioxide Nanocomposites in Degradation of Organic Pollutants

et al. 2022

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Magnesium(II) sulfanyl porphyrazine with peripheral morpholinethoxy substituents was embedded on the surface of titanium(IV) dioxide nanoparticles. The obtained nanocomposites were characterized with the use of particle size and distribution (NTA analysis), electron microscopy (SEM), thermal analysis (TGA), FTIR–ATR spectroscopy, and X-ray powder diffraction (XRD). The measured particle size of the obtained material was 327.4 ± 15.5 nm. Analysis with XRD showed no visible changes in the crystallinity of the material after deposition of porphyrazine on the TiO2 surface. However, SEM images revealed noticeable changes in the morphology of the obtained hybrid material: higher aggregation and less ordered structure of the aggregates. The TGA analysis revealed the lost 3.6% (0.4 mg) of the mass of obtained material in the range 250–550 °C. In the FTIR–ATR analysis, C-H stretching vibratins in the range of 3000–2800 cm−1, originating from porphyrazine moieties, were detected. The photocatalytic applicability of the nanomaterial was assessed in photodegradation studies of methylene blue and bisphenol A as reference environmental pollutants. In addition, the photocatalytic degradation of carbamazepine with porphyrazine/TiO2 hybrids as photocatalysts was studied, accompanied by an HPLC chromatography assessment of photodegradation. In total, 43% of the initial concentration was achieved in the case of bisphenol A, after 4 h of irradiation, whereas 57% was achieved in the case of carbamazepine. In each photodegradation reaction, the activity of the obtained photocatalytic nanomaterial was proved with almost linear degradation. The photodegradation reaction rate constants were calculated, and revealed 5.75 × 10−5 s−1 for bisphenol A and 5.66 × 10−5 s−1 for carbamazepine.

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Section: Resultscontrasting

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photocatalytic Activity of Sulfanyl Porphyrazine/Titanium Dioxide Nanocomposites in Degradation of Organic Pollutants

et al. 2022

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“…To avoid the harmful health consequences of ibuprofen and naproxen and its metabolites, removing them from natural water and wastewater is necessary. 187,188 To photodegrade ibuprofen and naproxen in aqueous media, Mlynarczyk and co-workers 189 used a material based on Zn 4 or Cu 4 (Fig. 4) immobilized in TiO 2 .…”

Section: Photocatalytic Degradation Of Organic Pollutantsmentioning

confidence: 99%

Advances in photocatalytic degradation of organic pollutants in wastewaters: harnessing the power of phthalocyanines and phthalocyanine-containing materials

Gamelas,

Tomé,

Tomé

et al. 2023

RSC Adv.

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“…Macrocycles may be used to mimic the activity of cytochrome P450 in selective oxidation of organic molecules, leading to valuable chemicals [ 16 , 17 ]. In a more robust approach, they are investigated as a tool for water treatment through the oxidative decomposition of organic pollutants [ 18 , 19 ]. Upon illumination with light, certain macrocycles may generate reactive oxygen species, including singlet oxygen, which further extends the scope of the catalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Porphyrins and Phthalocyanines on Solid-State Mesoporous Matrices as Catalysts in Oxidation Reactions

Szymczak

Kryjewski

2022

Materials

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The review presents recent examples of heterogenic catalysts based on porphyrins and phthalocyanines loaded on mesoporous materials, such as MCM-41, SBA-15, MCM-48, SBA-16 or Al-MCM-41. Heterogenic approach to catalysis eases recovery, reuse and prevent macrocycle aggregation. In this application, mesoporous silica is a promising candidate for anchoring macrocycle and obtaining a new catalyst. Introduction of porphyrin or phthalocyanine into the mesoporous material may be performed through adsorption of the macrocycle, or by its in situ formation—by reaction of substrates introduced to the pores of the catalytic material. Catalytic reactions studied are oxidation processes, focused on alkane, alkene or arene as substrates. The products obtained are usually epoxides, alcohols, ketones, aldehydes or acids. The greatest interest lies in oxidation of cyclohexane and cyclohexene, as a source of adypic acid and derivatives. Some of the reactions may be viewed as biomimetic processes, resembling processes that occur in vivo and are catalyzed by cytochrome P450 enzyme family.

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Simple modification of titanium(IV) oxide for the preparation of a reusable photocatalyst

Cited by 13 publications

References 53 publications

Photocatalytic Activity of Sulfanyl Porphyrazine/Titanium Dioxide Nanocomposites in Degradation of Organic Pollutants

Photocatalytic Activity of Sulfanyl Porphyrazine/Titanium Dioxide Nanocomposites in Degradation of Organic Pollutants

Advances in photocatalytic degradation of organic pollutants in wastewaters: harnessing the power of phthalocyanines and phthalocyanine-containing materials

Porphyrins and Phthalocyanines on Solid-State Mesoporous Matrices as Catalysts in Oxidation Reactions

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