Hydrothermal in situ preparation of the copper phthalocyanine tetrasulfonate modified titanium dioxide photocatalyst

Wang, Zhiyu; Chen, Haifeng; Tang, Peixiao; Mao, Weiping; Zhang, Fuan; Qian, Guodong; Fan, Xianping

doi:10.1016/j.colsurfa.2006.04.049

Cited by 36 publications

(16 citation statements)

References 15 publications

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“…Consequently, sensitizers are used to modify TiO 2 , so that it can be excited by visible light. Some of these sensitizers include azo,, hemicyanine,, perylene bisimide,, xanthene, porphyrin and pthalocyanine dyes. The latter two groups of chromophores show the best photosensitizing ability …”

Section: Introductionmentioning

confidence: 99%

Enhanced Photocatalytic Performance of Porphyrin/Phthalocyanine and Bis(4‐pyridyl)pyrrolidinofullerene modified Titania

et al. 2017

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Zinc(II), copper(II) and cobalt(II) metallated porphyrins/phthalocyanines and bis(4-pyridyl) pyrrolidinofullerene (9) were used in a supramolecular approach for the sensitization of titania. Spectral properties of the chromophores were examined in the solid state showing strong absorptions at 700 and 800 nm for porphyrins and phthalocyanines, respectively. The interaction between the chromophores and a dual ligand was investigated spectroscopically. Titania-based composites sensitized with 9 and cobaltous porphyrin exhibited the highest photocatalytic activity against both phenol and methylene blue under solar irradiation. Photodegradation intermediates were determined based on LC-UV-Vis-MS analysis. It is expected that the composites will be applied for remediation of aqueous environmental samples from transparent and colorful pollutants.[a] Dr.

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Section: Introductionmentioning

confidence: 99%

Enhanced Photocatalytic Performance of Porphyrin/Phthalocyanine and Bis(4‐pyridyl)pyrrolidinofullerene modified Titania

et al. 2017

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“…TiO 2 nanoparticles containing different amounts of CoPcS and pure TiO 2 were synthesized by the described procedure in Ref. [33]. 20 mL Ti(OC 3 H 7 ) 4 , 20 mL ethanol and 1.62 mL acetylacetone was prepared and stirred for 30 min at room temperature (solution A).…”

Section: Photocatalyst Synthesismentioning

confidence: 99%

“…A common disadvantage of this method is a low degree of molecular distribution of the dye molecules in the TiO 2 structure. Incorporation of phthalocyanines into TiO 2 gel has also been reported [31][32][33]. Due to the incomplete characterization and uncertain validation of the photocatalytic activity mechanism, complementary study is still needed.…”

Section: Introductionmentioning

confidence: 98%

“…The enhanced photocatalytic activity of TiO 2 sentisized by iron (III) phthalocyanine has been ascribed to the effective formation of hydroxyl radicals generated from both components [31]. The photocatalytic activity of TiO 2 containing copper phthalocyanine has been assigned to a dye-sensitized TiO 2 photocatalytic mechanism [33]. Although this photocatalyst functions under visible light but it cannot achieve complete degradation of methyl orange as a model pollutant.…”

Section: Introductionmentioning

confidence: 99%

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Photocatalytical Treatment of Synthetic Wastewater Containing Chlorophenols by TiO2 Nanoparticles Sensitized with Cobalt Phthalocyanine Under Visible Light

Pirbazari¹

2017

J Chem Eng Process Technol

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In this paper, sensitization TiO nanoparticles with sulphonated cobalt phthalocyanine(CoPcS-TNP) has been reported. The prepared samples characterized by different analysis such as: XRD, FT-IR, EDX, nitrogen physisorption, TG and TEM techniques. The XRD, TEM and nitrogen physisorption results showed the prepared samples containing only the pure anatase phase with crystal sizes in the range of 7-10 nm and high surface areas of 133-280 m 2 /g. The presence of CoPcS in photocatalysts confirmed by FT-IR and EDX analysis. The CoPcS-TNP samples showed efficient activity for photocatalytic degradation of 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) under visible light. The sample CoPcS-TNP (2.24) was the best photocatalyst for degradation of chlorophenols under visible light. The degradation reactions follow first-order kinetics. Reusing experiments of the photocatalyst showed a reduction activity from 95% to 60% for chlorophenols degradation after four cycles. The major intermediates of degradation were oxalic acid, pyruvic acid and malonic acid which identified by gas chromatography-mass spectrometry (GC/MS).

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“…The literature survey showed that there were several reports on the preparation of TiO 2 catalysts containing phthalocyanine by impregnation [12][13][14][15][16], causing heterogeneous molecular distribution of the phthalocyanine molecules in the TiO 2 network. Some authors reported the incorporation of phthalocyanine complexes into TiO 2 gel [17][18][19]. In previous studies, the performance of TiO 2 nanoparticles has been sensitized by cobalt phthalocyanine tetrasulfonate (CoPcTs) for heterogeneous photocatalytic degradation of 2,4-dichlorophenol, 4-chlorophenol and methylene blue has been investigated [9,20,21].…”

Section: Introductionmentioning

confidence: 99%

TiO2 nanoparticles containing phthalocyanine as a visible light driven photocatalyst for degradation of thionine acetate in synthetic wastewater

Pirbazari¹

2017

Desalination and Water Treatment

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a b s t r ac tIn this research, preparation and photocatalytic performance of cobalt phthalocyanine tetrasulfonate sensitized TiO 2 nanoparticles (CoPcTs/TiO 2 ) for the degradation of thionine (TH) under visible light was reported. The prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectra, diffuse reflectance spectroscopy, nitrogen physisorption and transmission electron microscopy techniques. The obtained data revealed that the sensitized TiO 2 nanoparticles have pure anatase phase with crystal size of approximately 9.5 nm and surface area of 141 m 2 g -1.The experimental parameters such as catalyst dose, initial TH concentration and initial pH were studied. Maximum photodegradation of TH (more than 90%) was achieved within 120 min with the catalyst loading of 0.5 g L −1 and initial TH concentration of 10 mg L -1 , in the condition of neutral pH under visible light. Only 40% degradation of the TH was obtained in the presence of pure TiO 2 . The photocatalytic degradation reactions followed first-order kinetics and the experiential rate constants changed with TH concentrations.

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Hydrothermal in situ preparation of the copper phthalocyanine tetrasulfonate modified titanium dioxide photocatalyst

Cited by 36 publications

References 15 publications

Enhanced Photocatalytic Performance of Porphyrin/Phthalocyanine and Bis(4‐pyridyl)pyrrolidinofullerene modified Titania

Enhanced Photocatalytic Performance of Porphyrin/Phthalocyanine and Bis(4‐pyridyl)pyrrolidinofullerene modified Titania

Photocatalytical Treatment of Synthetic Wastewater Containing Chlorophenols by TiO2 Nanoparticles Sensitized with Cobalt Phthalocyanine Under Visible Light

TiO2 nanoparticles containing phthalocyanine as a visible light driven photocatalyst for degradation of thionine acetate in synthetic wastewater

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