Enhancement of photo-fenton-like degradation of orange II by MnO2/NiO nanocomposite with the synergistic effect from bisulfite

Zhang, Xinyu; Ma, Jianfeng; Fan, Changhai; Peng, Mingguo; Komarneni, Sridhar

doi:10.1016/j.jallcom.2019.01.197

Cited by 28 publications

(6 citation statements)

References 36 publications

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“…[36] In addition, the Al x K y MnO 2−z light absorption effect is better than that of pure α-MnO 2 . [37] The morphologies of as-prepared pristine α-MnO 2 and Al x K y MnO 2−z were characterized by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). As shown in Figure 3, the as-prepared pristine α-MnO 2 presents the nanowires architecture (Figure 3a).…”

Section: Resultsmentioning

confidence: 99%

Enhanced Elastic Migration of Magnesium Cations in alpha‐Manganese Dioxide Tunnels Locally Tuned by Aluminium Substitution

Ding

Zhang

et al. 2022

Adv Funct Materials

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The harsh conditions of large hydrated ion radius of Mg 2+ cations and the strong electrostatic interaction with the host material put forward higher requirements for high-performance aqueous magnesium ion (Mg 2+ ) energy storage devices. Herein, substituted aluminium ions (Al 3+ ) doped α-MnO 2 materials are prepared. The introduction of Al 3+ cations adjust the local chemical environment inside the tunnel structure of α-MnO 2 and precisely regulates the diffusion behavior of inserted Mg 2+ cations. The shortened oxygens' distance and abundant oxygen defects result in a substantially enhanced elastic migration pattern of Mg 2+ cations driven by strengthened electrostatic attraction, which brings the lower diffusion energy barrier, improved reaction kinetics, and adaptive volume expansion as evidenced by Climbing Image-Nudged Elastic Band density function theory calculations coupled with experimental confirmation in X-ray photoelectron spectroscopy, electron paramagnetic resonance, and galvanostatic intermittent titration technique. As a result, this rationally designed cathode exhibits a high reversible capacity of 197.02 mAh g -1 at 0.1 A g -1 and stable cycle performance of 2500 cycles with 82% retention. These parameters are among the best of Mg-ion capacitors reported to date. This study offers a detailed insight into the local tunnel structure tunning effect and opens up a new path of modification for tunnel-type structural materials.

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Section: Resultsmentioning

confidence: 99%

Enhanced Elastic Migration of Magnesium Cations in alpha‐Manganese Dioxide Tunnels Locally Tuned by Aluminium Substitution

Ding

Zhang

et al. 2022

Adv Funct Materials

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“…86 It is observed that the degradation of OII was inhibited by 58.3% and 67.4%, respectively, after the introduction of EDTA-2Na and BQ, indicating that h + and ˙O 2 − play a role in the photocatalytic process. 57,87,88…”

Section: Resultsmentioning

confidence: 99%

Activation of Na₂S₂O₈ by α-Fe₂O₃/CuS composite oxides for the degradation of Orange II under visible light irradiation

Lei

et al. 2022

New J. Chem.

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“…Much research is demonstrated to overcome these disadvantages. For this purpose, sunlight irradiation has been introduced as a replacement for mercury lamps at the laboratory scale for the potential applications of photo-Fenton processes [120,121]. Solar generative photo-Fenton reactions have demonstrated high performance, achieving a high degree of mineralization as well as a level of performance up to 90% within a short reaction time [122].…”

Section: Fenton Reactionmentioning

confidence: 99%

Catalytic Oxidation Process for the Degradation of Synthetic Dyes: An Overview

Javaid

Qazi

2019

IJERPH

288

101

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Dyes are used in various industries as coloring agents. The discharge of dyes, specifically synthetic dyes, in wastewater represents a serious environmental problem and causes public health concerns. The implementation of regulations for wastewater discharge has forced research towards either the development of new processes or the improvement of available techniques to attain efficient degradation of dyes. Catalytic oxidation is one of the advanced oxidation processes (AOPs), based on the active radicals produced during the reaction in the presence of a catalyst. This paper reviews the problems of dyes and hydroxyl radical-based oxidation processes, including Fenton’s process, non-iron metal catalysts, and the application of thin metal catalyst-coated tubular reactors in detail. In addition, the sulfate radical-based catalytic oxidation technique has also been described. This study also includes the effects of various operating parameters such as pH, temperature, the concentration of the oxidant, the initial concentration of dyes, and reaction time on the catalytic decomposition of dyes. Moreover, this paper analyzes the recent studies on catalytic oxidation processes. From the present study, it can be concluded that catalytic oxidation processes are very active and environmentally friendly methods for dye removal.

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Enhancement of photo-fenton-like degradation of orange II by MnO2/NiO nanocomposite with the synergistic effect from bisulfite

Cited by 28 publications

References 36 publications

Enhanced Elastic Migration of Magnesium Cations in alpha‐Manganese Dioxide Tunnels Locally Tuned by Aluminium Substitution

Enhanced Elastic Migration of Magnesium Cations in alpha‐Manganese Dioxide Tunnels Locally Tuned by Aluminium Substitution

Activation of Na₂S₂O₈ by α-Fe₂O₃/CuS composite oxides for the degradation of Orange II under visible light irradiation

Catalytic Oxidation Process for the Degradation of Synthetic Dyes: An Overview

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Enhancement of photo-fenton-like degradation of orange II by MnO2/NiO nanocomposite with the synergistic effect from bisulfite

Cited by 28 publications

References 36 publications

Enhanced Elastic Migration of Magnesium Cations in alpha‐Manganese Dioxide Tunnels Locally Tuned by Aluminium Substitution

Enhanced Elastic Migration of Magnesium Cations in alpha‐Manganese Dioxide Tunnels Locally Tuned by Aluminium Substitution

Activation of Na2S2O8 by α-Fe2O3/CuS composite oxides for the degradation of Orange II under visible light irradiation

Catalytic Oxidation Process for the Degradation of Synthetic Dyes: An Overview

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Activation of Na₂S₂O₈ by α-Fe₂O₃/CuS composite oxides for the degradation of Orange II under visible light irradiation