A facile Pechini sol–gel synthesis of TiO2/Zn2TiO2/ZnO/C nanocomposite: an efficient catalyst for the photocatalytic degradation of Orange G textile dye

Nassar, Mostafa Y.; Ali, Ayman A.; Amin, Alaa S.

doi:10.1039/c7ra04899h

Cited by 48 publications

(24 citation statements)

References 64 publications

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“…The calculated photocatalytic reaction rate constant values are compiled in Table 1. These values are in good agreement with those reported in the recent literature for similar reaction conditions [39][40][41][42][43]. The k R value was initially increased with the C 60 loading of the photocatalysts approaching its maximum over the 3C 60 /MCM41 sample.…”

Section: Decolorization Through Photocatalytic Splitting Of Azo-bondssupporting

confidence: 91%

“…In order to further study decolorization through the photocatalytic splitting of azo-bonds, we determined the rate constants (k R ) of photocatalytic reaction for the samples studied. Assuming that the concentration of O 2 in the reaction mixture remains constant and equal to saturation due to the continuous feed with air, a pseudo-first-order photoreaction with respect to the Orange G (Equation 3) could be easily derived [10,39,40].…”

Section: Decolorization Through Photocatalytic Splitting Of Azo-bondsmentioning

confidence: 99%

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Decolorization of Orange-G Aqueous Solutions over C60/MCM-41 Photocatalysts

et al. 2019

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The majority of the photocatalysts studied for azo-dye degradation are based on semiconductor materials. Studies reported on non-semiconducting materials are very scarce. In the present work, we studied the fullerene (C60) ability to accelerate photodegradation of the dye’s azo bond in the presence of ascorbic acid. A series of C60 supported on ordered mesoporous silica (MCM-41) catalysts, containing 1, 3, 6, 9, and 12 wt % of fullerene C60, was studied using Orange G (OG) as representative azo-dye. This study showed that partial decolorization is achieved in the dark by simple adsorption of the dye on the bare surface of the carrier. The extent of decolorization increases with the irradiation of the suspension due to photocatalytic degradation of the azo-bond. This is maximized over the sample containing 3 wt % of C60 and it has been attributed to the best combination of the extent of the dye adsorption with the high intrinsic photocatalytic activity of small C60 clusters predominated in this sample. This catalyst proved to be quite stable upon five subsequent photocatalytic cycles, losing less than 5% of its initial activity. No degradation of OG takes place in the absence of ascorbic acid.

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Section: Decolorization Through Photocatalytic Splitting Of Azo-bondssupporting

confidence: 91%

Section: Decolorization Through Photocatalytic Splitting Of Azo-bondsmentioning

confidence: 99%

Decolorization of Orange-G Aqueous Solutions over C60/MCM-41 Photocatalysts

et al. 2019

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“…So many effects have been made to narrow its band gap and slow its electron-hole pair recombination, such as doping with metals ions, 18 non-metal ions, 19 anchoring with porphyrins and coupling with other semiconductors. 20,21 Furthermore, many researchers have made effects to prepare ZnO composite materials, which possess high specic surface area and have excellent photocatalytic activity. 22 Zeolitic imidazolate framework-8 (ZIF-8), as a kind of MOFs, has high specic surface area, excellent thermal and chemical stability.…”

Section: Instructionmentioning

confidence: 99%

A MOF-derived ZIF-8@Zn_1−xNi_xO photocatalyst with enhanced photocatalytic activity

Jing

Wang

et al. 2017

RSC Adv.

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Today, metal doped ZnO exhibits good performances and attracts worldwide attention. In this paper, a ZIF-8@Zn 1Àx Ni x O photocatalyst was successfully prepared using MOF as precursor and AgNO 3 as catalyst. We explored the influence of Ni content on the photocatalytic activity of ZIF-8@Zn 1Àx Ni x O. The structure and properties of ZIF-8@Zn 1Àx Ni x O were characterized by XRD, SEM, FT-IR, BET, UV-vis diffuse reflectance spectroscopy and so on. The results show that Ni is well loaded in ZIF-8 and part of ZIF-8 is oxidized to form Zn 1Àx Ni x O composites. The photocatalytic performance of ZIF-8@Zn 1Àx Ni x O was evaluated by degradation of rhodamine B (RhB) solution under UV light. It was found that ZIF-8@Zn 0.95 Ni 0.05 O exhibited the highest photocatalytic degradation efficiency and can degrade 99.19% rhodamine B solution after 20 min under UV light. Furthermore, ZIF-8@Zn 0.95 Ni 0.05 O exhibits high stability. After five repeated cycles, its photocatalytic activity remains at 97.43%.Fig. 9 The schematic illustration of ZIF-8@Zn 0.95 Ni 0.05 O for degradation of RhB under UV light. 42034 | RSC Adv., 2017, 7, 42030-42035 This journal is

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“…These results are consistent with the reported data. 6,20,[50][51][52][53][54] The vibrational frequencies of the produced products are presented in Table 2. 3.1.3.…”

Section: Auto-combustion Fabrication and Characterization Of Znmn 2 Omentioning

confidence: 99%

“…CO 2 and N 2 ) at elevated temperatures. 20,21,53 The detailed structures of the ZnMn 2 O 4 products calcined at 500 C are displayed in TEM images ( Fig. 6).…”

Section: Auto-combustion Fabrication and Characterization Of Znmn 2 Omentioning

confidence: 99%

Synthesis and characterization of a ZnMn₂O₄nanostructure as a chemical nanosensor: a facile and new approach for colorimetric determination of omeprazole and lansoprazole drugs

Nassar

El-Moety²,

El‐Shahat

2017

RSC Adv.

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A facile Pechini sol–gel synthesis of TiO₂/Zn₂TiO₂/ZnO/C nanocomposite: an efficient catalyst for the photocatalytic degradation of Orange G textile dye

Cited by 48 publications

References 64 publications

Decolorization of Orange-G Aqueous Solutions over C60/MCM-41 Photocatalysts

Decolorization of Orange-G Aqueous Solutions over C60/MCM-41 Photocatalysts

A MOF-derived ZIF-8@Zn_1−xNi_xO photocatalyst with enhanced photocatalytic activity

Synthesis and characterization of a ZnMn₂O₄nanostructure as a chemical nanosensor: a facile and new approach for colorimetric determination of omeprazole and lansoprazole drugs

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A facile Pechini sol–gel synthesis of TiO2/Zn2TiO2/ZnO/C nanocomposite: an efficient catalyst for the photocatalytic degradation of Orange G textile dye

Cited by 48 publications

References 64 publications

Decolorization of Orange-G Aqueous Solutions over C60/MCM-41 Photocatalysts

Decolorization of Orange-G Aqueous Solutions over C60/MCM-41 Photocatalysts

A MOF-derived ZIF-8@Zn1−xNixO photocatalyst with enhanced photocatalytic activity

Synthesis and characterization of a ZnMn2O4nanostructure as a chemical nanosensor: a facile and new approach for colorimetric determination of omeprazole and lansoprazole drugs

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A facile Pechini sol–gel synthesis of TiO₂/Zn₂TiO₂/ZnO/C nanocomposite: an efficient catalyst for the photocatalytic degradation of Orange G textile dye

A MOF-derived ZIF-8@Zn_1−xNi_xO photocatalyst with enhanced photocatalytic activity

Synthesis and characterization of a ZnMn₂O₄nanostructure as a chemical nanosensor: a facile and new approach for colorimetric determination of omeprazole and lansoprazole drugs