High-Surface-Area Sodium Tantalate Nanoparticles with Enhanced Photocatalytic and Electrical Properties Prepared through Polymeric Citrate Precursor Route

Farooq, Umar; Ahmed, Jahangeer; Alshehri, Saad M.; Ahmad, Tokeer

doi:10.1021/acsomega.9b02830

Cited by 38 publications

(21 citation statements)

References 49 publications

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“…The remarkable features of nanocellulose, as stated above (i. e., high surface area to volume ratio, high strength, and tunable surface chemistry), have also attracted applications in biomedical fields. A potential application is to produce nanocellulose reinforced hydrogel composites that improve the mechanical properties of polymeric gels and have the desirable properties of both reinforcement and host matrix phases [300,301] . Sampath et al [302] .…”

Section: Future Perspectivesmentioning

confidence: 99%

Present Status and Future Prospects of Jute in Nanotechnology: A Review

Shah

Shaikh

Khan

et al. 2021

The Chemical Record

105

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Nanotechnology has transformed the world with its diverse applications, ranging from industrial developments to impacting our daily lives. It has multiple applications throughout financial sectors and enables the development of facilitating scientific endeavors with extensive commercial potentials. Nanomaterials, especially the ones which have shown biomedical and other health‐related properties, have added new dimensions to the field of nanotechnology. Recently, the use of bioresources in nanotechnology has gained significant attention from the scientific community due to its 100 % eco‐friendly features, availability, and low costs. In this context, jute offers a considerable potential. Globally, its plant produces the second most common natural cellulose fibers and a large amount of jute sticks as a byproduct. The main chemical compositions of jute fibers and sticks, which have a trace amount of ash content, are cellulose, hemicellulose, and lignin. This makes jute as an ideal source of pure nanocellulose, nano‐lignin, and nanocarbon preparation. It has also been used as a source in the evolution of nanomaterials used in various applications. In addition, hemicellulose and lignin, which are extractable from jute fibers and sticks, could be utilized as a reductant/stabilizer for preparing other nanomaterials. This review highlights the status and prospects of jute in nanotechnology. Different research areas in which jute can be applied, such as in nanocellulose preparation, as scaffolds for other nanomaterials, catalysis, carbon preparation, life sciences, coatings, polymers, energy storage, drug delivery, fertilizer delivery, electrochemistry, reductant, and stabilizer for synthesizing other nanomaterials, petroleum industry, paper industry, polymeric nanocomposites, sensors, coatings, and electronics, have been summarized in detail. We hope that these prospects will serve as a precursor of jute‐based nanotechnology research in the future.

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Section: Future Perspectivesmentioning

confidence: 99%

Present Status and Future Prospects of Jute in Nanotechnology: A Review

Shah

Shaikh

Khan

et al. 2021

The Chemical Record

105

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“…have gained a lot of interest as an alternative to TiO 2 due to their environment friendly nature and comparable band gap to TiO 2 . 8 , 9 , 11 , 12 , 21 − 23 …”

Section: Introductionmentioning

confidence: 99%

Self-Assembled Interwoven Nanohierarchitectures of NaNbO₃ and NaNb_1–xTa_xO₃ (0.05 ≤ x ≤ 0.20): Synthesis, Structural Characterization, Photocatalytic Applications, and Dielectric Properties

et al. 2022

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Dependence on fossil fuels for energy purposes leads to the global energy crises due to the nonrenewable nature and high CO 2 production for environmental pollution. Therefore, new ways of nanocatalysis for environmental remediation and sustainable energy resources are being explored. Herein, we report a facile surfactant free, low temperature, and environmentally benign hydrothermal route for development of pure and (5, 10, 15, and 20 mol %) Ta-doped horizontally and vertically interwoven NaNbO 3 nanohierarchitecture photocatalysts. To the best of our knowledge, such a type of hierarchical structure of NaNbO 3 has never been reported before, and changes in the microstructure of these nanoarchitectures on Ta-doping has also been examined for the first time. As-synthesized nanostructures were characterized by different techniques including X-ray diffraction analysis, electron microscopic studies, X-ray photoelectron spectroscopic studies, etc. Ta-doping considerably affects the microstructure of the nanohierarchitectures of NaNbO 3 , which was analyzed by FESEM analysis. The UV–visible diffused reflectance spectroscopy study shows considerable change in the band gap of as-synthesized nanostructures and was found to be ranging from 2.8 to 3.5 eV in pure and different mole % Ta-doped NaNbO 3 . With an increase in dopant concentration, the surface area increases and was equal to 5.8, 6.8, 7.0, 9.2, and 9.7 m 2 /g for pure and 5, 10, 15, and 20 mol % Ta-doped NaNbO 3 , respectively. Photocatalytic activity toward the degradation of methylene blue dye and H 2 evolution reaction shows the highest activity (89% dye removal and 21.4 mmol g –1 catalyst H 2 evolution) for the 10 mol % NaNbO 3 nanostructure which was attributed to a change in the conduction band maximum of the material. At 100 °C and 500 kHz, the dielectric constants of pure and 5, 10, 15, and 20 mol % Ta-doped NaNbO 3 were found to be 111, 510, 491, 488, and 187, respectively. The current study provides the rational insight into the design of nanohierarchitectures and how microstructure affects different properties of the material upon doping.

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“…Generally, the mechanism followed by photocatalytic reactions over the catalyst surface involves light absorption, charge carrier generation, electron–hole pair (e – /h + ) transportation, and surface oxidation–reduction reactions. − Under sunlight irradiation, the as-prepared Ala–Ag NPs are photoexcited by absorbing the photons with h ν energy, and because of the high SPR effect, they undergo plasmonic decay and later generate electron–hole pairs (e – /h + ). Further, the oxidation–reduction reaction occurs on the Ala–Ag NPs surface and promotes the accumulation of dye molecules.…”

Section: Resultsmentioning

confidence: 99%

Multifunctional Efficacy of Environmentally Benign Silver Nanospheres for Organic Transformation, Photocatalysis, and Water Remediation

et al. 2020

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Highly crystalline and monophasic silver nanospheres with a high specific surface area of 57 m 2 /g have been synthesized by an environmentally benign rapid chemical reduction using l -alanine for catalytic transformation, photocatalytic degradation, and bacterial disinfection, which can provide an ample strategy for water remediation. Electron microscopic analysis confirms the spherical morphology of as-prepared silver nanoparticles with an average grain size of 20 nm. Silver nanospheres showed excellent catalytic activity for the catalytic hydrogenation and conversion (95.6%) of 4-nitrophenol to 4-aminophenol. Significant photocatalytic degradation proficiency was also shown for methylene blue (94.5%) and rhodamine B (96.3%) dyes under solar irradiation. The antibacterial behavior of Ala–Ag nanospheres was demonstrated through the disk diffusion antibacterial assay against Gram-positive ( Escherichia coli ) and Gram-negative ( Staphylococcus aureus ) bacteria. Multifunctional efficiency of as-prepared Ala–Ag nanospheres for water remediation has also been established.

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High-Surface-Area Sodium Tantalate Nanoparticles with Enhanced Photocatalytic and Electrical Properties Prepared through Polymeric Citrate Precursor Route

Cited by 38 publications

References 49 publications

Present Status and Future Prospects of Jute in Nanotechnology: A Review

Present Status and Future Prospects of Jute in Nanotechnology: A Review

Self-Assembled Interwoven Nanohierarchitectures of NaNbO₃ and NaNb_1–xTa_xO₃ (0.05 ≤ x ≤ 0.20): Synthesis, Structural Characterization, Photocatalytic Applications, and Dielectric Properties

Multifunctional Efficacy of Environmentally Benign Silver Nanospheres for Organic Transformation, Photocatalysis, and Water Remediation

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High-Surface-Area Sodium Tantalate Nanoparticles with Enhanced Photocatalytic and Electrical Properties Prepared through Polymeric Citrate Precursor Route

Cited by 38 publications

References 49 publications

Present Status and Future Prospects of Jute in Nanotechnology: A Review

Present Status and Future Prospects of Jute in Nanotechnology: A Review

Self-Assembled Interwoven Nanohierarchitectures of NaNbO3 and NaNb1–xTaxO3 (0.05 ≤ x ≤ 0.20): Synthesis, Structural Characterization, Photocatalytic Applications, and Dielectric Properties

Multifunctional Efficacy of Environmentally Benign Silver Nanospheres for Organic Transformation, Photocatalysis, and Water Remediation

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Self-Assembled Interwoven Nanohierarchitectures of NaNbO₃ and NaNb_1–xTa_xO₃ (0.05 ≤ x ≤ 0.20): Synthesis, Structural Characterization, Photocatalytic Applications, and Dielectric Properties