Synergetic performance of systematically designed g-C3N4/rGO/SnO2 nanocomposite for photodegradation of Rhodamine-B dye

Ali, Gulzar; Zaidi, Syed Jazib Abbas; Basit, Muhammad Abdul; Park, Tae Joo

doi:10.1016/j.apsusc.2021.151140

Cited by 49 publications

(17 citation statements)

References 73 publications

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“…26 Additionally, the photo as well as chemical stability, selectivity, and reusability of synthesized nanocomposite play a crucial role in dye-degradation performance. 60–63 Fig. 11 indicates that after 5 consecutive cycles, very small photocatalytic performance changes were observed for p–n heterojunction demonstrating the stability as well as reusability of the photocatalyst.…”

Section: Resultsmentioning

confidence: 98%

Quantum-dot sensitized hierarchical NiO p–n heterojunction for effective photocatalytic performance

et al. 2022

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Section: Resultsmentioning

confidence: 98%

Quantum-dot sensitized hierarchical NiO p–n heterojunction for effective photocatalytic performance

et al. 2022

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“…Additionally, the color of the MB solution faded gradually, indicating the breaking of the dye’s structure by oxidation [ 53 ]. Ali et al [ 54 ] also observed that MB dye was degraded by nanocomposites (NCs) under UV irradiation over a short exposure time.…”

Section: Resultsmentioning

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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“…Ali et al also showed the cost-effective prepared g-C 3 N 4 /rGO/SnO 2 nanocomposite for RhB degradation. The optimal amount of this nanocomposite reveals an increased RhB degradation efficiency [316].…”

Section: Tin Oxide-g-c 3 Nmentioning

confidence: 98%

A Comprehensive Review of Graphitic Carbon Nitride (g-C3N4)–Metal Oxide-Based Nanocomposites: Potential for Photocatalysis and Sensing

2022

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g-C3N4 has drawn lots of attention due to its photocatalytic activity, low-cost and facile synthesis, and interesting layered structure. However, to improve some of the properties of g-C3N4, such as photochemical stability, electrical band structure, and to decrease charge recombination rate, and towards effective light-harvesting, g-C3N4–metal oxide-based heterojunctions have been introduced. In this review, we initially discussed the preparation, modification, and physical properties of the g-C3N4 and then, we discussed the combination of g-C3N4 with various metal oxides such as TiO2, ZnO, FeO, Fe2O3, Fe3O4, WO3, SnO, SnO2, etc. We summarized some of their characteristic properties of these heterojunctions, their optical features, photocatalytic performance, and electrical band edge positions. This review covers recent advances, including applications in water splitting, CO2 reduction, and photodegradation of organic pollutants, sensors, bacterial disinfection, and supercapacitors. We show that metal oxides can improve the efficiency of the bare g-C3N4 to make the composites suitable for a wide range of applications. Finally, this review provides some perspectives, limitations, and challenges in investigation of g-C3N4–metal-oxide-based heterojunctions.

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Synergetic performance of systematically designed g-C3N4/rGO/SnO2 nanocomposite for photodegradation of Rhodamine-B dye

Cited by 49 publications

References 73 publications

Quantum-dot sensitized hierarchical NiO p–n heterojunction for effective photocatalytic performance

Quantum-dot sensitized hierarchical NiO p–n heterojunction for effective photocatalytic performance

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

A Comprehensive Review of Graphitic Carbon Nitride (g-C3N4)–Metal Oxide-Based Nanocomposites: Potential for Photocatalysis and Sensing

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