A Simple g-C<sub>3</sub>N<sub>4</sub>/TNTs Heterojunction for Improving the Photoelectrocatalytic Degradation of Methyl Orange

Zeng, Linsheng; Zhang, He; Luo, Yongping; Xu, Jitao; Chen, Jiansheng; Wu, Li; Huang, Ping; Xu, Shunjian

doi:10.1149/1945-7111/ac3abc

Cited by 6 publications

(3 citation statements)

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“…The ZnO/Fe 3 O 4 /g-C 3 N 4 -50% composite exhibited a higher photocatalytic activity after five recycles [ 82 ]. Some g-C 3 N 4 composites reported for the efficient PD of MO dye are AgBr:g-C 3 N 4 [ 83 ], g-C 3 N 4 /TNTs heterojunctions [ 84 ], ternary g-C 3 N 4 /ZnO–W/M nanocomposites [ 85 ], g-C 3 N 4 -TiO 2 nanocomposite [ 86 ], CdS/g-C 3 N 4 hybrid nano-photocatalysts [ 87 ], MoO 3 –g-C 3 N 4 composites [ 88 ], g-C 3 N 4 /ZnO composites [ 89 ], CoFe 2 O 4 /g-C 3 N 4 nanocomposites [ 90 ], g-C 3 N 4 /Bi 4 O 5 I 2 [ 91 ], ternary g-C 3 N 4 /Ag/γ-FeOOH photocatalysts [ 92 ], etc. Some g-C 3 N 4 -based composites/nanocomposites used for the efficient PD of MO dye are consolidated in Table 1 .…”

Section: Composites and Heterojunctionsmentioning

confidence: 99%

g-C3N4 Based Photocatalyst for the Efficient Photodegradation of Toxic Methyl Orange Dye: Recent Modifications and Future Perspectives

et al. 2023

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Industrial effluents containing dyes are the dominant pollutants, making the drinking water unfit. Among the dyes, methylene orange (MO) dye is mutagenic, carcinogenic and toxic to aquatic organisms. Therefore, its removal from water bodies through effective and economical approach is gaining increased attention in the last decades. Photocatalytic degradation has the ability to convert economically complex dye molecules into non-toxic and smaller species via redox reactions, by using photocatalysts. g-C3N4 is a metal-free n-type semiconductor, typical nonmetallic and non-toxici polymeric photocatalyst. It widely used in photocatalytic materials, due to its easy and simple synthesis, fascinating electronic band structure, high stability and abundant availability. As a photocatalyst, its major drawbacks are its limited efficiency in separating photo-excited electron–hole pairs, high separated charge recombination, low specific surface area, and low absorption coefficient. In this review, we report the recent modification strategies adopted for g-C3N4 for the efficient photodegradation of MO dye. The different modification approaches, such as nanocomposites and heterojunctions, as well as doping and defect introductions, are briefly discussed. The mechanism of the photodegradation of MO dye by g-C3N4 and future perspectives are discussed. This review paper will predict strategies for the fabrication of an efficient g-C3N4-based photocatalyst for the photodegradation of MO dye.

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Section: Composites and Heterojunctionsmentioning

confidence: 99%

g-C3N4 Based Photocatalyst for the Efficient Photodegradation of Toxic Methyl Orange Dye: Recent Modifications and Future Perspectives

et al. 2023

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“…Photoelectrocatalytic oxidation of MO using TiO2 nanotube (NT) heterostructures was demonstrated in works (Deng et al 2018;Zeng et al 2021). The results of the studies showed that heterostructures exhibit higher activity during electrocatalysis (EC), photocatalysis (PC), and photoelectrocatalysis (PEC) than the initial TiO2 NTs.…”

Section: Photoelectrocatalytic Oxidationmentioning

confidence: 99%

Photoelectrochemical advanced oxidation processes for removal of azo dye from water: emerging aspects and oxidation products

Исаев

Shabanov

Rabadanov

et al. 2023

Preprint

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Azo dyes are one of the large classes of water soluble synthetic dyes with a wide range of colors and can be released into the environment when used. Azo dyes belong to one of the most numerous groups of synthetic dyes and are characterized by the presence of an azo group (-N=N-) with two or more symmetrical or asymmetrical aromatic radicals. Processes of photoelectrochemical oxidation using various approaches have been developed for the removal of azo dyes from wastewater. The fundamentals of different photoelectrochemical oxidation processes for azo dyes, such as photoelectrocatalytic oxidation (PEC), photoelectro-Fenton (PEF), and solar photoelectro-Fenton (SPEF) processes, are discussed. The use of different semiconductor materials as electrode materials in photoelectrocatalysis and PEF for azo dye removal, the influence of different parameters on the removal of azo dyes from wastewater, reactor design, combined photoelectrochemical oxidation, including the use of fuel cells, are also considered. The anodic, electrochemical, and photoelectrochemical oxidation processes for azo dye removal is compared. Also shows what products are mainly formed during photoelectrochemical oxidation of azo dyes and how photoelectrochemical oxidation affects the toxicity of azo dye solutions under different conditions.

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“…The oxidative decomposition method involves adding strong oxidants directly to water to react with organic matter, thereby achieving the purpose of decomposing it [5]. Catalytic degradation mainly includes photocatalysis [6][7][8][9][10] and electrocatalysis [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Triboelectrification Catalytic Degradation of Organic Pollutants in Water Environment

Zhang

2023

Catalysts

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With the rapid development of industrialization, more and more organic pollutants are entering the water environment, rendering the treatment of organic pollutants a key issue in protecting it. Therefore, finding a convenient and effective method for degrading organic pollutants in water is of great importance. Triboelectrification is known as the process of charge transfer during the friction process. It is always accompanied by the energy level transition of electrons or holes, making it a potential method for catalytic degradation, which we refer to as triboelectrification catalysis. In this study, a set of experimental equipment was developed. The device is composed of a mechanical system, a control system, and a measurement system that can realize the quantitative measurement of the triboelectrification catalysis under different friction pairs, different loads, and different contact frequencies. Using the developed device, we observed stable triboelectrification catalytic degradation. This study performed triboelectrification catalytic experiments on various organic compounds including methyl orange, rhodamine, and tetracycline. The results revealed that these three organic compounds were degraded by 39%, 15%, and 20%, respectively, within three hours of being under the influence of triboelectrification catalysis. Subsequently, this study conducted triboelectrification catalytic experiments using materials with different triboelectric capacities. This study found that the triboelectric capacity significantly impacted the triboelectrification catalytic degradation rate, providing further evidence for the mechanism of triboelectrification catalysis. Additionally, this study found that SiO2 and Al2O3, which also utilize electrons as the primary carrier for triboelectrification, are capable of catalyzing the degradation of a methyl orange solution. Therefore, this study suggests that the triboelectrification catalysis is a versatile and widely applicable method for treating organic pollutants in water. With a broad range of catalyst sources and the ability to effectively degrade various organic pollutants, it shows promise as a solution for the problem of water pollution.

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A Simple g-C₃N₄/TNTs Heterojunction for Improving the Photoelectrocatalytic Degradation of Methyl Orange

Cited by 6 publications

References 28 publications

g-C3N4 Based Photocatalyst for the Efficient Photodegradation of Toxic Methyl Orange Dye: Recent Modifications and Future Perspectives

g-C3N4 Based Photocatalyst for the Efficient Photodegradation of Toxic Methyl Orange Dye: Recent Modifications and Future Perspectives

Photoelectrochemical advanced oxidation processes for removal of azo dye from water: emerging aspects and oxidation products

Triboelectrification Catalytic Degradation of Organic Pollutants in Water Environment

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A Simple g-C3N4/TNTs Heterojunction for Improving the Photoelectrocatalytic Degradation of Methyl Orange

Cited by 6 publications

References 28 publications

g-C3N4 Based Photocatalyst for the Efficient Photodegradation of Toxic Methyl Orange Dye: Recent Modifications and Future Perspectives

g-C3N4 Based Photocatalyst for the Efficient Photodegradation of Toxic Methyl Orange Dye: Recent Modifications and Future Perspectives

Photoelectrochemical advanced oxidation processes for removal of azo dye from water: emerging aspects and oxidation products

Triboelectrification Catalytic Degradation of Organic Pollutants in Water Environment

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A Simple g-C₃N₄/TNTs Heterojunction for Improving the Photoelectrocatalytic Degradation of Methyl Orange