Morphological effects on the photocatalytic properties of SnO2 nanostructures

Kar, Arik; Olszówka, Joanna E.; Sain, Sumanta; Sloman, Spyder-Ryder I.; Montes, O.; Fernández, A.; Pradhan, S.K.; Wheatley, Andrew E. H.

doi:10.1016/j.jallcom.2019.151718

Cited by 65 publications

(37 citation statements)

References 81 publications

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“…An outcome of their fascinating features and different benefits (for instance, hierarchical SnO 2 Nanostructures [25], flower-like SnO 2 nanostructures [26]- [28], One-dimensional [29], Nanosheet-assembled hierarchical [30] and 1D and surface-functionalized SnO 2 nanosized of numerous structures [31]), was that a variety of SnO 2 nanomaterials were generated through diverse procedures. These procedures include, but are not limited to, the hydrothermal method [32]- [35], the carbothermal reduction [36], the thermal evaporation [37], [38], the microwave-assisted [39], the nano casting route [40], and the spray pyrolysis technique [41]. Nevertheless, the effectiveness of every technique for distributing nanosized materials is limited via re-accretion of separate nanostructures and the growth of an equipoise setting in induced circumstances, that dictates the measurement planes of the agglomerate of distributed nanosized.…”

Section: Introductionmentioning

confidence: 99%

The Effect of PVP Concentration on Particle Size, Morphological and Optical Properties of Cassiterite Nanoparticles

et al. 2020

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Different concentrations of polyvinylpyrrolidone (PVP) have been successfully employed to prepare high purity tetragonal cassiterite nanoparticles, and control the growth of particle size. The effect of PVP on the structural, morphological, size, composition, and optical properties of the prepared cassiterite nanoparticles has been investigated. It has been found that various characteristics of tetragonal cassiterite nanoparticles could be optimized by simply changing the values of PVP. The pure tetragonal cassiterite nanoparticles have been produced at the optimum calcination temperature. The XRD and SEM results indicated the structural and morphological properties of the tetragonal cassiterite nanoparticles, respectively. The particles' size and their distribution have been displayed by TEM images. The composition phase and the surface composition of the prepared samples have been evaluated via FTIR and XPS, respectively. The optical properties of the prepared tetragonal cassiterite nanoparticles have been studied using UV-vis and PL spectroscopy. Outcomes cassiterite nanoparticles are useful for antibacterial activity and application of solar energy. INDEX TERMS Cassiterite nanoparticles, polyvinylpyrrolidone, thermal treatment technique, energy applications.

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Section: Introductionmentioning

confidence: 99%

The Effect of PVP Concentration on Particle Size, Morphological and Optical Properties of Cassiterite Nanoparticles

et al. 2020

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“…The obtained DRS-UV results show that the OXA, CA, and IA-SnO 2 nanorods have identi ed red shift regions of the transition. The OXA, CA, and IA-SnO 2 nanoparticles' band gap energies were at 2.5 eV, 2.8 eV, and 3.0 eV, while preparing the low band gap energy compared to the reported band gap values (Chen 2019 et al;Kar et al 2019). The OXA-SnO 2 nanoparticles exhibited lower band gap energies when compared to the CA and IA-SnO 2 materials.…”

Section: Drs Uv-visible Spectroscopymentioning

confidence: 77%

Fabrication of different SnO2 nanorods for enhanced photocatalytic degradation and antibacterial activity

Gnanamoorthy

Yadav

Yadav³

et al. 2021

Environ Sci Pollut Res

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The acid-mediated (Oxalic acid [OXA], Cinnamic acid [CA], and itaconic acid [IA]) SnO 2 nanorods were synthesized by the hydrothermal method. The synthesized SnO 2 nanorods, in turn, were analyzed with various physic-chemical techniques such as the X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), scanning electron microscope (SEM), and Raman spectroscopy. Furthermore, the photocatalytic activity of the different SnO 2 nanorods was investigated with the malachite green (MG) dye under visible light illumination. The OXA-SnO 2 nanorods displayed an excellent degradation performance with observed values of 91% compared to other nanomaterials' (CA and IA-SnO 2 ) photocatalytic activity. The different synthesized SnO 2 materials were tested for antibacterial and antifungal studies; this result may be used or developed in future research activities.

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“…For example, NPs of ZnO, TiO 2 , WO 3 , and In 2 O 3 have been commonly studied for catalytic, anticancer, antibacterial, optoelectronics, and photocatalytic degradation [ 8 , 9 , 10 ] due to the fact of their unique physicochemical properties. Particularly, tin oxide (SnO 2 ) NPs, an n-type semiconductor with a wide bandgap of ~3.6 eV, was studied for these purposes because of their several advantages, e.g., low cost, stability, facile synthesis, and low toxicity [ 11 ]. The hydrothermal method has been commonly used to synthesize various nanoforms of SnO 2 such as NPs, nanorods, and nanowires [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

One-Pot Synthesis of SnO2-rGO Nanocomposite for Enhanced Photocatalytic and Anticancer Activity

et al. 2022

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Metal oxide and graphene derivative-based nanocomposites (NCs) are attractive to the fields of environmental remediation, optics, and cancer therapy owing to their remarkable physicochemical characteristics. There is limited information on the environmental and biomedical applications of tin oxide-reduced graphene oxide nanocomposites (SnO2-rGO NCs). The goal of this work was to explore the photocatalytic activity and anticancer efficacy of SnO2-rGO NCs. Pure SnO2 NPs and SnO2-rGO NCs were prepared using the one-pot hydrothermal method. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), UV–Vis spectrometry, photoluminescence (PL), and Raman scattering microscopy were applied to characterize the synthesized samples. The crystallite size of the SnO2 NPs slightly increased after rGO doping. TEM and SEM images show that the SnO2 NPs were tightly anchored onto the rGO sheets. The XPS and EDX data confirmed the chemical state and elemental composition of the SnO2-rGO NCs. Optical data suggest that the bandgap energy of the SnO2-rGO NCs was slightly lower than for the pure SnO2 NPs. In comparison to pure SnO2 NPs, the intensity of the PL spectra of the SnO2-rGO NCs was lower, indicating the decrement of the recombination rate of the surfaces charges (e−/h+) after rGO doping. Hence, the degradation efficiency of methylene blue (MB) dye by SnO2-rGO NCs (93%) was almost 2-fold higher than for pure SnO2 NPs (54%). The anticancer efficacy of SnO2-rGO NCs was also almost 1.5-fold higher against human liver cancer (HepG2) and human lung cancer (A549) cells compared to the SnO2 NPs. This study suggests a unique method to improve the photocatalytic activity and anticancer efficacy of SnO2 NPs by fusion with graphene derivatives.

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Morphological effects on the photocatalytic properties of SnO2 nanostructures

Cited by 65 publications

References 81 publications

The Effect of PVP Concentration on Particle Size, Morphological and Optical Properties of Cassiterite Nanoparticles

The Effect of PVP Concentration on Particle Size, Morphological and Optical Properties of Cassiterite Nanoparticles

Fabrication of different SnO2 nanorods for enhanced photocatalytic degradation and antibacterial activity

One-Pot Synthesis of SnO2-rGO Nanocomposite for Enhanced Photocatalytic and Anticancer Activity

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