CuO-doped Ce for catalytic wet peroxide oxidation degradation of quinoline wastewater under wide pH conditions

Jiao, Zhaojie; Zhang, Xianming; Gong, Haifeng; He, Donglin; Yin, Hong; Liu, Yunqi; Gao, Xu

doi:10.1016/j.jiec.2021.10.006

Cited by 21 publications

(6 citation statements)

References 41 publications

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“…Consequently, 98.1% of quinoline and 86.1% of total organic carbon were eliminated without the necessity of regulating the initial degrading pH (Figure 13b). [253] OsO 2 was doped on the surface of Os-citrate NPs with enhancing POD-like activity over a broad range from 2.0 to by ZnFe LDHs mediated Fenton-like system under wide pH range; ii) pH change of catalytic system with various initial pH value; iii) influence of initial pH on the degradation of phenol catalyzed by ZnFe LDHs. Reproduced with permission.…”

Section: Pollutant Degradationmentioning

confidence: 99%

Breaking the pH Limitation of Nanozymes: Mechanisms, Methods, and Applications

Feng,

Wang,

Wang

et al. 2024

Advanced Materials

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Although nanozymes have drawn a great attention over the past decade, the activities of peroxidase‐like, oxidase‐like and catalase‐like nanozymes are often pH dependent with elusive mechanism, which largely restricts their application. Therefore, a systematical discussion on the pH related catalytic mechanisms of nanozymes together with the methods to overcome this limitation is in need. In this review, various nanozymes exhibiting pH dependent catalytic activities are collected and the root causes for their pH dependence are comprehensively analyzed. Subsequently, regulatory concepts including catalytic environment reconstruction and direct catalytic activity improvement to break this pH restriction are summarized. Moreover, applications of pH independent nanozymes in sensing, disease therapy and pollutant degradation are overviewed. Finally, current challenges and future opportunities on the development of pH independent nanozymes are suggested. It is anticipated that this review will promote the further design of pH independent nanozymes and broaden their application range with higher efficiency.This article is protected by copyright. All rights reserved

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Section: Pollutant Degradationmentioning

confidence: 99%

Breaking the pH Limitation of Nanozymes: Mechanisms, Methods, and Applications

Feng,

Wang,

Wang

et al. 2024

Advanced Materials

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“…Meanwhile, the porous structure on the catalyst surface promotes the reaction of dye molecule with H 2 O 2 on the catalyst surface. [69,70] Therefore, the dye molecule can be adsorbed and degraded on the catalyst surface. The chain reactions of the Fenton-like catalytic process are given below.…”

Section: Reaction Mechanismmentioning

confidence: 99%

“…[8,39,40,43,71] Thirdly, Cu + could be produced by the reaction between Cu 2 + and HO 2 * (equation 6). [40,69,71] Subsequently, MB reacts with ⋅OH to produce intermediates, CO 2 and H 2 O (equation 7). [8,69] Then, the above reactions are repeated.…”

Section: Reaction Mechanismmentioning

confidence: 99%

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Coal Fly Ash‐based P Zeolite‐anchored Cu_xO as an Efficient Catalyst for Heterogeneous Photo‐Fenton Degradation of Methylene Blue

Gan

Huabing

et al. 2023

ChemistrySelect

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The environmental quality has been given more attention because of the potential hazards brought by urbanization and industrialization. Therefore, this study proposed a comprehensive utilization method for treating dye wastewater using solid waste. P zeolite was prepared using coal fly ash (CFA), and then anchored with CuxO as catalyst (CuxO/P) for heterogeneous Fenton‐like degradation of methylene blue (MB) under ultraviolet irradiation (UV). Compared with P zeolite and CuO, the catalyst CuxO/P showed the highest degradation efficiency of MB in combination with H2O2 and UV (98.3 %) after 90 min of reaction. This can be attributed to the involvement of copper component and the dispersion of P zeolite as the carrier. The MB degradation reaction was consistent with first‐order kinetics. The sum of the rate constant k in the CuxO/P+H2O2 (0.0030 min−1) and CuxO/P+UV (0.0035 min−1) system is much lower than that in the CuxO/P+H2O2+UV system (0.0491 min−1), indicating a strong synergistic effect among CuxO/P, H2O2, and UV. Meanwhile, the catalyst CuxO/P with excellent stability and renewability presented a degradation efficiency of over 95 % in 5 cycles, exhibiting considerable application prospects in dye wastewater treatment. Furthermore, the most effectively radical was ⋅OH generated by catalytic H2O2. This work provided a new perspective for the reuse of coal fly ash. It would be one of the most efficient and comprehensive utilization ways to treat wastewater with solid waste.

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“…The direct oxidation of quinoline has been studied to obtain its degradation [28] or site-selective oxidation using enzymatic catalysis [29].…”

Section: Introductionmentioning

confidence: 99%

Green Aromatic Epoxidation with an Iron Porphyrin Catalyst for One-Pot Functionalization of Renewable Xylene, Quinoline, and Acridine

2023

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Sustainable functionalization of renewable aromatics is a key step to supply our present needs for specialty chemicals and pursuing the transition to a circular, fossil-free economy. In the present work, three typically stable aromatic compounds, representative of products abundantly obtainable from biomass or recycling processes, were functionalized in one-pot oxidation reactions at room temperature, using H2O2 as a green oxidant and ethanol as a green solvent in the presence of a highly electron withdrawing iron porphyrin catalyst. The results show unusual initial epoxidation of the aromatic ring by the green catalytic system. The epoxides were isolated or evolved through rearrangement, ring opening by nucleophiles, and oxidation. Acridine was oxidized to mono- and di-oxides in the peripheral ring: 1:2-epoxy-1,2-dihydroacridine and anti-1:2,3:4-diepoxy-1,2,3,4-tetrahydroacridine, with TON of 285. o-Xylene was oxidized to 4-hydroxy-3,4-dimethylcyclohexa-2,5-dienone, an attractive building block for synthesis, and 3,4-dimethylphenol as an intermediate, with TON of 237. Quinoline was directly functionalized to 4-quinolone or 3-substituted-4-quinolones (3-ethoxy-4-quinolone or 3-hydroxy-4-quinolone) and corresponding hydroxy-tautomers, with TON of 61.

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CuO-doped Ce for catalytic wet peroxide oxidation degradation of quinoline wastewater under wide pH conditions

Cited by 21 publications

References 41 publications

Breaking the pH Limitation of Nanozymes: Mechanisms, Methods, and Applications

Breaking the pH Limitation of Nanozymes: Mechanisms, Methods, and Applications

Coal Fly Ash‐based P Zeolite‐anchored Cu_xO as an Efficient Catalyst for Heterogeneous Photo‐Fenton Degradation of Methylene Blue

Green Aromatic Epoxidation with an Iron Porphyrin Catalyst for One-Pot Functionalization of Renewable Xylene, Quinoline, and Acridine

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CuO-doped Ce for catalytic wet peroxide oxidation degradation of quinoline wastewater under wide pH conditions

Cited by 21 publications

References 41 publications

Breaking the pH Limitation of Nanozymes: Mechanisms, Methods, and Applications

Breaking the pH Limitation of Nanozymes: Mechanisms, Methods, and Applications

Coal Fly Ash‐based P Zeolite‐anchored CuxO as an Efficient Catalyst for Heterogeneous Photo‐Fenton Degradation of Methylene Blue

Green Aromatic Epoxidation with an Iron Porphyrin Catalyst for One-Pot Functionalization of Renewable Xylene, Quinoline, and Acridine

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Coal Fly Ash‐based P Zeolite‐anchored Cu_xO as an Efficient Catalyst for Heterogeneous Photo‐Fenton Degradation of Methylene Blue