Pd-MnO 2 nanoparticles/TiO 2 nanotube arrays (NTAs) photo-electrodes photo-catalytic properties and their ability of degrading Rhodamine B under visible light

Thabit, Mohamed; Liu, Huiling; Zhang, Jian; Wang, Bing

doi:10.1016/j.jes.2017.06.042

Cited by 16 publications

(2 citation statements)

References 38 publications

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“…These processes primarily focus on minimizing electron-hole recombination, maximizing utilization efficiency, and amplifying catalytic activity. Lsy and his colleagues [17] fabricated Ti/black TiO 2 /PbO 2 micro/nanostructure photoelectrodes that exhibited good degradation efficiency for anthraquinone dye under an external electric field and a supplied light source. Yang et al [18] used hydrothermal methods to synthesize MoS 2 /TiO 2 materials for the treatment of chromium-containing wastewater.…”

Section: Introductionmentioning

confidence: 99%

Phenomenal Insight into Electrochemically Induced Photocatalytic Degradation of Nitrobenzene on Variant Au-Modified TiO2 Nanotubes

Wang,

Li,

Wang

et al. 2023

Catalysts

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TiO2 nanotubes are a prominent type of TiO2-based nanostructure compared to nanorod arrays. A promising way to improve photocatalytic performance is modifying TiO2 nanotubes with metals, either on the surface or inside the tubes. There is a substantial demand for enhancing the conductivity and charge separation of TiO2 nanotubes, with a major focus on gold (Au) modification. Gold (Au) coatings have significantly improved the photocatalytic activity of TiO2 nanotubes, particularly in pollutant oxidation. However, the mechanism underlying the action of Au-modified TiO2 nanotubes in photocatalytic nitrobenzene oxidation under electrochemical induction remains unclear. Therefore, we conducted related experiments to explore the optimal Au concentration under various conditions. Under electric field induction, the maximum removal rate achieved was 54.9%. Lastly, we analyzed the relevant photocatalytic mechanism to elucidate the responses of electrons and holes to a simulated contaminant under a photo-electrochemical field.

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Section: Introductionmentioning

confidence: 99%

Phenomenal Insight into Electrochemically Induced Photocatalytic Degradation of Nitrobenzene on Variant Au-Modified TiO2 Nanotubes

Wang,

Li,

Wang

et al. 2023

Catalysts

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“…Recently, much effort has been focused on the degradation of dyes by semiconductor photocatalyst. In pursuit of low cost, non-toxicity and chemical stability, titanium dioxide (TiO 2 ) shows good application as a photocatalyst [6,7]. However, TiO 2 can only absorb ultraviolet (UV) light in the solar spectrum, which greatly limits the application of TiO 2 in photocatalytic degradation.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of a high purity α-MnO2 nanorod for rapid degradation of Rhodamine B

wang

Guan

Wang

et al. 2021

Preprint

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Manganese dioxide (α-MnO2) nanorods with diameters of about 5-15 nm and lengths of 100-150 nm were synthesized by a simple co-precipitation method. XRD, TEM, HRTEM, SAED and XPS were used to analyze the crystallographic information, microstructure and chemical bonding of the as-prepared sample. The α-MnO2 nanorod exhibited a high efficiency and rapid removal rate of rhodamine B (RhB), which reached about 97.5% within 10 min when pH=4 (and pH=6.6) and 97.7% within 50 min when pH = 9 in the presence of H2O2. The results also indicated that a lower pH value is conducive to the movement of the characteristic peak and the attenuation of the intensity of the characteristic peak of RhB dye. Then a possible catalytic mechanism was revealed. Moreover, the α-MnO2 nanorod exhibits an excellent recyclability and catalytic stability. This research indicates that α-MnO2 nanorods have a potential application in practical dye pollutant treatment.

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MnO₂‐Based Materials for Environmental Applications

et al. 2021

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Manganese dioxide (MnO2) is a promising photo–thermo–electric‐responsive semiconductor material for environmental applications, owing to its various favorable properties. However, the unsatisfactory environmental purification efficiency of this material has limited its further applications. Fortunately, in the last few years, significant efforts have been undertaken for improving the environmental purification efficiency of this material and understanding its underlying mechanism. Here, the aim is to summarize the recent experimental and computational research progress in the modification of MnO2 single species by morphology control, structure construction, facet engineering, and element doping. Moreover, the design and fabrication of MnO2‐based composites via the construction of homojunctions and MnO2/semiconductor/conductor binary/ternary heterojunctions is discussed. Their applications in environmental purification systems, either as an adsorbent material for removing heavy metals, dyes, and microwave (MW) pollution, or as a thermal catalyst, photocatalyst, and electrocatalyst for the degradation of pollutants (water and gas, organic and inorganic) are also highlighted. Finally, the research gaps are summarized and a perspective on the challenges and the direction of future research in nanostructured MnO2‐based materials in the field of environmental applications is presented. Therefore, basic guidance for rational design and fabrication of high‐efficiency MnO2‐based materials for comprehensive environmental applications is provided.

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Pd-MnO 2 nanoparticles/TiO 2 nanotube arrays (NTAs) photo-electrodes photo-catalytic properties and their ability of degrading Rhodamine B under visible light

Cited by 16 publications

References 38 publications

Phenomenal Insight into Electrochemically Induced Photocatalytic Degradation of Nitrobenzene on Variant Au-Modified TiO2 Nanotubes

Phenomenal Insight into Electrochemically Induced Photocatalytic Degradation of Nitrobenzene on Variant Au-Modified TiO2 Nanotubes

Facile synthesis of a high purity α-MnO2 nanorod for rapid degradation of Rhodamine B

MnO₂‐Based Materials for Environmental Applications

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Pd-MnO 2 nanoparticles/TiO 2 nanotube arrays (NTAs) photo-electrodes photo-catalytic properties and their ability of degrading Rhodamine B under visible light

Cited by 16 publications

References 38 publications

Phenomenal Insight into Electrochemically Induced Photocatalytic Degradation of Nitrobenzene on Variant Au-Modified TiO2 Nanotubes

Phenomenal Insight into Electrochemically Induced Photocatalytic Degradation of Nitrobenzene on Variant Au-Modified TiO2 Nanotubes

Facile synthesis of a high purity α-MnO2 nanorod for rapid degradation of Rhodamine B

MnO2‐Based Materials for Environmental Applications

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Product

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About

MnO₂‐Based Materials for Environmental Applications