Characterization and catalytic performance of Ni-Doped TiO2 as a potential heterogeneous nanocatalyst for the preparation of substituted pyridopyrimidines

Kaïba, Abdellah; Ouerghi, Oussama; Geesi, Mohammed H.; Elsanousi, Ammar; Belkacem, Afif; Dehbi, Oussama; Alharthi, Abdulrahman I.; Alotaibi, Mshari A.; Riadi, Yassine

doi:10.1016/j.molstruc.2019.127376

Cited by 23 publications

(6 citation statements)

References 56 publications

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“…Titanium dioxide has been reported as an efficient nano-catalyst, for instance, as catalysis in the shift of water gas, 72 hydrodesulphurization, 73 dehydrogenation, 74,75 and thermal decomposition. 76 A simple procedure was applied by Kaiba et al 77 for the synthesis of 2-aryl-pyrido[2,3- d ]pyrimidines 2a–h using Ni-doped TiO 2 nanoparticles. Thus, two-component reactions of (2-aminopyridin-3-yl)methanol with aryl methan-amines in toluene at their reflux temperature under the optimized conditions yielded the desired pyridopyrimidines 2a–h (Scheme 2).…”

Section: Synthesis Of Annulated Pyrido[23-d]pyrimidinesmentioning

confidence: 99%

Synthetic strategies of heterocycle-integrated pyridopyrimidine scaffolds supported by nano-catalysts

et al. 2023

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Section: Synthesis Of Annulated Pyrido[23-d]pyrimidinesmentioning

confidence: 99%

Synthetic strategies of heterocycle-integrated pyridopyrimidine scaffolds supported by nano-catalysts

et al. 2023

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“…Therefore, a lot of study have been carried out on the degradation of dye using photocatalysts. [24][25][26][27][28][29][30][31][32][33][34][35][36][37][54][55][56][57] In this study, we have taken mixture of dyes as a representative of industrial effluent. To study the degradation of mixture of dyes, we have taken a 200 ml, 20 ppm solution of mixture of dyes, namely, brilliant green, methylene blue, and rhodamine B, and 100 mg of best working catalyst 5 mol% Ce-doped TiO 2 .…”

Section: Degradation Of Mixture Of Dyesmentioning

confidence: 99%

“…[23] Different metals such as V, Cr, Fe, Co, Mn, Mo, Ni, Cu, and Ce can be used for TiO 2 doping. [24][25][26][27][28][29][30][31][32] Further, for this purpose, different nonmetals can also be used as dopant, such as nitrogen, carbon, phosphorus, boron, and iodine. [33][34][35][36][37] For our study, we have selected ceria as a dopant.…”

mentioning

confidence: 99%

Sol–gel method synthesized Ce‐doped TiO₂ visible light photocatalyst for degradation of organic pollutants

Bhosale

Sutar

Londhe³

et al. 2022

Applied Organom Chemis

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The Ce‐doped TiO2 nanoparticles were prepared by the sol–gel method. The prepared nanoparticles were characterized by sophisticated analytical techniques such as XRD, FESEM with EDX, HR‐TEM, XPS, FTIR, TGA, and UV–visible spectroscopy, which gives structural features, morphology, elemental composition, and thermal stability of prepared nanoparticles. Based on the analysis, we conclude that increasing the dopant content of cerium in TiO2 results in a decrease in particle size, increase in thermal stability, and decrease in band gap. Further, on increasing the dopant content of cerium, there is an increase in photocatalytic activity due to changes in structural features due to doping, and 5 mol% Ce‐doped TiO2 has shown nearly four times higher photocatalytic activity than pure TiO2 for degradation of tetracycline. In this study, the photocatalytic activity and kinetics of photocatalytic degradation of antibacterial agent tetracycline have been studied by using these prepared catalysts. Further, effects of different parameters such as change in pH and change in concentration of tetracycline and amount of catalyst loading have been studied for the degradation of tetracycline. Also, Ce‐doped TiO2 has shown good photocatalytic efficiency for degradation of a mixture of textile dyes (methylene blue, rhodamine B, and brilliant green) and for degradation of a mixture of emerging contaminants (tetracycline, diclofenac, and triclosan).

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“…Adjustment of physicochemical properties of titanium (IV) oxide is also possible by doping, modifying, and creating TiO 2 -based nanocomposites [20][21][22][23][24][25][26][27][28]. In all cases, it is quite feasible to implement desired improvements in order to obtain certain physical and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Commercial TiO2 P90 Modified with ZnO by the Impregnation Method

Dontsova

Yanushevska

Nahirniak

et al. 2021

Journal of Chemistry

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This article is devoted to TiO2/ZnO nanocomposites’ creation by modifying with the commercial TiO2/P90 product using the impregnation method and identifying the effect of the ZnO modifier on its adsorption, structural, photocatalytic, and electrical properties. The synthesized TiO2/ZnO nanocomposites were characterized by XRD, XRF, XPS, and low-temperature nitrogen adsorption-desorption methods. As a result, nanostructured TiO2/ZnO composites with the ZnO content of 2, 5, 10, and 15% were obtained. It was shown that the phase composition of TiO2/P90 does not change during the nanocomposite synthesis. XPS studies of TiO2/ZnO nanocomposites indicated the presence of Ti4+, Zn2+, O2−, and OH states on their surface, which is associated with TiO2, ZnO, and hydroxide ions. The nitrogen adsorption-desorption method showed that the commercial TiO2/P90 sample is nonporous, and all TiO2/ZnO nanocomposites are characterized by almost the same homogeneous mesoporous structure. Experimentally established sorption and photocatalytic properties depend on the specific surface area and electrostatic interaction with dyes. The effect of the ZnO modifier on I-V characteristics of the TiO2/P90 sample was revealed. The obtained experimental data showed that the TiO2/P90 sample contains one type of current carriers, and TiO2/2ZnO and TiO2/5ZnO nanocomposites are characterized by two types of current carriers.

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Characterization and catalytic performance of Ni-Doped TiO2 as a potential heterogeneous nanocatalyst for the preparation of substituted pyridopyrimidines

Cited by 23 publications

References 56 publications

Synthetic strategies of heterocycle-integrated pyridopyrimidine scaffolds supported by nano-catalysts

Synthetic strategies of heterocycle-integrated pyridopyrimidine scaffolds supported by nano-catalysts

Sol–gel method synthesized Ce‐doped TiO₂ visible light photocatalyst for degradation of organic pollutants

Characterization of Commercial TiO2 P90 Modified with ZnO by the Impregnation Method

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Characterization and catalytic performance of Ni-Doped TiO2 as a potential heterogeneous nanocatalyst for the preparation of substituted pyridopyrimidines

Cited by 23 publications

References 56 publications

Synthetic strategies of heterocycle-integrated pyridopyrimidine scaffolds supported by nano-catalysts

Synthetic strategies of heterocycle-integrated pyridopyrimidine scaffolds supported by nano-catalysts

Sol–gel method synthesized Ce‐doped TiO2 visible light photocatalyst for degradation of organic pollutants

Characterization of Commercial TiO2 P90 Modified with ZnO by the Impregnation Method

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Product

Resources

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Sol–gel method synthesized Ce‐doped TiO₂ visible light photocatalyst for degradation of organic pollutants