Recent updates in modification strategies for escalated performance of Graphene/MFe2O4 heterostructured photocatalysts towards energy and environmental applications

Mishra, Subhasish; Acharya, Rashmi

doi:10.1016/j.jallcom.2023.170576

Cited by 57 publications

(4 citation statements)

References 131 publications

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“…These results impressively reflect the effective impact of pH on the photocatalytic degradation of MB under visible light. Our findings are highly consistent with the literature [19][20][21][22][23][24][25], where photocatalysts were used. But in the present study any photocatalyst was not used, making this study comprehensive research in this field because of reducing the cost of process.…”

Section: Resultssupporting

confidence: 92%

Methylene blue concentration and pH-induced photocatalytic degradation of methylene blue without photocatalyst under visible light

Goktas¹,

Şahin²

2023

IJANSER

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Among the wastewater treatments, the advanced oxidation process (AOP) is one of the most popular techniques, due to its advantages in comparison with the other conventional physical and chemical processes. It is well known that photocatalysis is the most well-organized and appealing method for the degradation of organic toxins utilizing nano-sized semiconducting matter in the existence of solar radiation. There are many operational parameters that highly impact the photocatalytic activity of photocatalysis. Therefore, in this study, the influences of the operational parameters like pH and concentration of methylene blue (MB) on the photodegradation of the MB were investigated. It was observed that variation in the pH values of the dye solution led to an important change in the photocatalytic efficiency of the MB, especially at pH value 11. On the other hand, it is found that with decreased MB concentration the degradation time was reduced. These outcomes are very important for removing organic dyes with relatively inexpensive routes.

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Section: Resultssupporting

confidence: 92%

Methylene blue concentration and pH-induced photocatalytic degradation of methylene blue without photocatalyst under visible light

Goktas¹,

Şahin²

2023

IJANSER

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“…Consequently, the photocatalyst may be stimulated by visible light, enhancing its effectiveness in absorbing light and preventing aggregation. 115…”

Section: Graphene and Its Derivatives As Nanocomposite Photocatalystsmentioning

confidence: 99%

Carbon nitride- and graphene-based materials for the photocatalytic degradation of emerging water pollutants

Budiarso,

Dabur,

Rachmantyo

et al. 2024

Mater. Adv.

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“…By incorporating magnetic particles into the hybrid photocatalysts, an external magnetic field can be used to easily separate them after the photocatalytic process, ensuring reusability and offering a promising approach for environmental pollution control. Among the various magnetic particles, iron oxides—such as Fe 3 O 4 [ 16 , 20 ], α-Fe 2 O 3 [ 21 ], β-Fe 2 O 3 [ 22 ], γ-Fe 2 O 3 [ 23 ], FeO [ 24 ], and spinel ferrites (MFe 2 O 4 [ 25 ])—have garnered significant attention in the field of photocatalysis due to their low cost, strong magnetism, environmental friendliness, and stability. However, in comparison to classical photocatalysts like TiO 2 and ZnO, iron oxides do not demonstrate outstanding photocatalytic efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…By incorporating magnetic particles into the hybrid photocatalysts, an external magnetic field can be used to easily separate them after the photocatalytic process, ensuring reusability and offering a promising approach for environmental pollution control. Among the various magnetic particles, iron oxides-such as Fe 3 O 4 [16,20], α-Fe 2 O 3 [21], β-Fe 2 O 3 [22], γ-Fe 2 O 3 [23], FeO [24], and spinel ferrites (MFe 2 O 4 [25])-have garnered significant attention Considering these limitations, it is essential to explore novel approaches that utilize waste IOS as a raw material to produce high-tech, high-value functional materials.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Carbon Quantum Dots/Iron Oxide Composite Based on Waste Rice Noodle and Iron Oxide Scale: Preparation and Photocatalytic Capability

Ying,

Liu,

Jin

et al. 2023

Nanomaterials

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To provide an economical magnetic photocatalyst and introduce an innovative approach for efficiently utilizing discarded waste rice noodle (WRN) and iron oxide scale (IOS), we initially converted WRN into carbon quantum dots (CQDs) using a hydrothermal method, simultaneously calcining IOS to obtain iron oxide (FeOx). Subsequently, we successfully synthesized a cost-effective, magnetic CQDs/FeOx photocatalytic composite for the first time by combining the resulting CQDs and FeOx. Our findings demonstrated that calcining IOS in an air atmosphere enhanced the content of photocatalytically active α-Fe2O3, while incorporating WRN-based CQDs into FeOx improved the electron-hole pair separation, resulting in increased O2 reduction and H2O oxidation. Under optimized conditions (IOS calcination temperature: 300 °C; carbon loading: 11 wt%), the CQDs/FeOx composite, utilizing WRN and IOS as its foundation, exhibited exceptional and reusable capabilities in photodegrading methylene blue and tetracycline. Remarkably, for methylene blue, it achieved an impressive degradation rate of 99.30% within 480 min, accompanied by a high degradation rate constant of 5.26 × 10−3 min−1. This composite demonstrated reusability potential for up to ten photocatalytic cycles without a significant reduction in the degradation efficiency, surpassing the performance of IOS and FeOx without CQDs. Notably, the composite exhibited strong magnetism with a saturation magnetization strength of 34.7 emu/g, which enables efficient and convenient recovery in photocatalytic applications. This characteristic is highly advantageous for the large-scale industrial utilization of photocatalytic water purification.

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Recent updates in modification strategies for escalated performance of Graphene/MFe2O4 heterostructured photocatalysts towards energy and environmental applications

Cited by 57 publications

References 131 publications

Methylene blue concentration and pH-induced photocatalytic degradation of methylene blue without photocatalyst under visible light

Methylene blue concentration and pH-induced photocatalytic degradation of methylene blue without photocatalyst under visible light

Carbon nitride- and graphene-based materials for the photocatalytic degradation of emerging water pollutants

Magnetic Carbon Quantum Dots/Iron Oxide Composite Based on Waste Rice Noodle and Iron Oxide Scale: Preparation and Photocatalytic Capability

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