Structural analysis and photocatalytic degradation towards methylene blue using (Nb0.5Si0.5) Ti1−O2 nanocomposites

Rashad, M.; Mahfoz Kotb, H.; Helali, Saloua; Ahmad, Mohamad M.; Albalawi, Aishah E.; Alatawi, Naifa S.; Al-Faqiri, Bassam; Alsharari, Abdulrhman M.; Abd-Elnaiem, Alaa M.

doi:10.1016/j.ceramint.2023.10.127

Cited by 6 publications

(4 citation statements)

References 76 publications

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“…The mass of methyl blue that was degraded per unit of NPs (adsorption capacity) (q, mg/g) at a fixed time and at the equilibrium state was measured [ 36 ]:

…”

Section: Resultsmentioning

confidence: 99%

“…The results of this study led to the conclusion that 30 min is the ideal amount of time for the adsorption process and MgO NPs have a 10% better removal efficiency than PbO NPs, rising from 25% to 40% in 140 min. The mass of methyl blue that was degraded per unit of NPs (adsorption capacity) (q, mg/g) at a fixed time and at the equilibrium state was measured [36]:…”

Section: Methylene Blue Dye Adsorption Performancementioning

confidence: 99%

“…The process of aggregation eliminates the impact of contact time, as the pores become fully occupied and provide resistance against the diffusion of aggregated dye molecules within the adsorbent materials. It has been observed that the The mass of methyl blue that was degraded per unit of NPs (adsorption capacity) (q, mg/g) at a fixed time and at the equilibrium state was measured [36]:…”

Section: Methylene Blue Dye Adsorption Performancementioning

confidence: 99%

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Structural Analysis and Adsorption Studies of (PbO, MgO) Metal Oxide Nanocomposites for Efficient Methylene Blue Dye Removal from Water

Helali,

Rashad,

Ben Mabrouk

et al. 2024

Materials

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In the present work, magnesium oxide (MgO) and lead oxide (PbO) nanoparticles were prepared by the co-precipitation method. Their structural parameters and morphology were investigated using XRD, HRTEM, and FTIR. The formation of the phases was seen to have small average crystallite sizes and an orthorhombic crystal structure for both MgO and PbO nanoparticles. The results of HR-TEM showed irregularly shaped nanoparticles: quasi-spherical or rod-like shapes and spherical-like shapes for MgO and PbO nanoparticles, respectively. The produced nanoparticles’ size using X-ray diffraction analysis was found to be 17 nm and 41 nm for MgO and PbO nanoparticles, respectively. On the other hand, it was observed from the calculations that the optical band gap obeys an indirect allowed transition. The calculated values of the band gap were 4.52 and 4.28 eV for MgO and PbO NPs, respectively. The MB was extracted from the wastewater using the prepared composites via absorption. Using a variety of kinetic models, the adsorptions were examined. Out of all the particles, it was discovered that the composites were best. Furthermore, of the models currently under consideration, the pseudo-second-order model best fit the degradation mechanism. The resultant composites could be beneficial for degrading specific organic dyes for water purification, as well as applications needing a wider optical band gap.

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“…The mass of methyl blue that was degraded per unit of NPs (adsorption capacity) (q, mg/g) at a fixed time and at the equilibrium state was measured [ 36 ]:

…”

Section: Resultsmentioning

confidence: 99%

Section: Methylene Blue Dye Adsorption Performancementioning

confidence: 99%

Section: Methylene Blue Dye Adsorption Performancementioning

confidence: 99%

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Structural Analysis and Adsorption Studies of (PbO, MgO) Metal Oxide Nanocomposites for Efficient Methylene Blue Dye Removal from Water

Helali,

Rashad,

Ben Mabrouk

et al. 2024

Materials

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“…In each test, the photodegradation of 20 mL of the MB solution, with an initial dye concentration of about 3.2 ppm, was analyzed; (3) W3 [79]: the photocatalytic activity of TiO 2 (P25) was evaluated in a photocatalytic reactor under visible light (six lamps, Philips Actinic BL, 11 W). Photocatalysts with a loading of 0.1 g L −1 were added to 50 mL of the MB solution (initial concentration, 4 ppm), and the irradiation time was equal to 120 min; (4) W4 [80]: a slurry reactor with a suspension composed of (Nb 0.5 Si 0.5 ) x Ti 1−x O 2 nanocomposites was irradiated by the use of a solar simulator (model ORIEL SOL-2A, 1000 W), and the volume of the MB aqueous solution was 0.002 L; (5) W5 [81]: degradation runs were carried out in 100 mL of an MB aqueous solution, with an initial concentration of the pollutant equal to 10 ppm, using an α-Fe 2 O 3 NP dosage equal to 0.1 g L −1 and irradiating the system with a UV-A lamp (5 W);…”

Section: Electrical Energy Consumption Comparisonmentioning

confidence: 99%

Characterization and Photocatalytic and Antibacterial Properties of Ag- and TiOx-Based (x = 2, 3) Composite Nanomaterials under UV Irradiation

Morante,

Folliero,

Dell’Annunziata

et al. 2024

Materials

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Metal and metal oxide nanostructured materials have been chemically and physically characterized and tested concerning methylene blue (MB) photoremoval and UV antibacterial activity against Escherichia coli and Staphylococcus aureus. In detail, silver nanoparticles and commercial BaTiO3 nanoparticles were modified to obtain nanocomposites through sonicated sol–gel TiO2 synthesis and the photodeposition of Ag nanoparticles, respectively. The characterization results of pristine nanomaterials and synthetized photocatalysts revealed significant differences in specific surface area (SSA), the presence of impurities in commercial Ag nanoparticles, an anatase phase with brookite traces for TiO2-based nanomaterials, and a mixed cubic–tetragonal phase for BaTiO3. Silver nanoparticles exhibited superior antibacterial activity at different dosages; however, they were inactive in the photoremoval of the dye. The silver–TiOx nanocomposite demonstrated an activity in the UV photodegradation of MB and UV inhibition of bacterial growth. Specifically, TiO2/AgNP (30–50 nm) reduced growth by 487.5 and 1.1 × 103 times for Escherichia coli and Staphylococcus aureus, respectively, at a dose of 500 ug/mL under UV irradiation.

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Microwave plasma processing of Ag2Zr4 nanospheres@GO composite: A novel approach of improving structural and photocatalytic properties

Iqbal,

Bhatti,

Noreen

et al. 2024

Diamond and Related Materials

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Structural analysis and photocatalytic degradation towards methylene blue using (Nb0.5Si0.5) Ti1−O2 nanocomposites

Cited by 6 publications

References 76 publications

Structural Analysis and Adsorption Studies of (PbO, MgO) Metal Oxide Nanocomposites for Efficient Methylene Blue Dye Removal from Water

Structural Analysis and Adsorption Studies of (PbO, MgO) Metal Oxide Nanocomposites for Efficient Methylene Blue Dye Removal from Water

Characterization and Photocatalytic and Antibacterial Properties of Ag- and TiOx-Based (x = 2, 3) Composite Nanomaterials under UV Irradiation

Microwave plasma processing of Ag2Zr4 nanospheres@GO composite: A novel approach of improving structural and photocatalytic properties

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