Spatial confinement of Co-N-C catalyst in carbon nanocuboid for water Decontamination: High Performance, mechanism and biotoxicity assessment

Li, Qiuyan; Ruan, Jiayi; Zhang, Xinyu; Wang, Yanlan; Zhao, Haiyu; Huang, Yingping; Huang, Di; Liu, Xiang

doi:10.1016/j.cej.2023.147555

Cited by 22 publications

(4 citation statements)

References 78 publications

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“…44) to produce ·OH (ref. 45–47) (eqn (3)). Meanwhile, visible-light irradiation promoted the reaction of H 2 O 2 with the ·OH radical to yield ·O 2 − (eqn (4)).…”

Section: Resultsmentioning

confidence: 99%

Revealing the primary role of the V⁴⁺/V⁵⁺ cycle in InVO₄ catalysts for promoting the photo-Fenton reaction

Jin,

Liu,

et al. 2024

Environ. Sci.: Nano

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“…44) to produce ·OH (ref. 45–47) (eqn (3)). Meanwhile, visible-light irradiation promoted the reaction of H 2 O 2 with the ·OH radical to yield ·O 2 − (eqn (4)).…”

Section: Resultsmentioning

confidence: 99%

Revealing the primary role of the V⁴⁺/V⁵⁺ cycle in InVO₄ catalysts for promoting the photo-Fenton reaction

Jin,

Liu,

et al. 2024

Environ. Sci.: Nano

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“…74 As illustrated in the Raman spectrum of Co-NCNRs, two broad peaks of 1358.88 and 1593.52 cm −1 could be assigned to the D and G bands, respectively (Figure S1b). 75 The low I D /I G value of 0.70 suggested the presence of a rich graphite carbon in Co-NCNRs. As shown in Figure S1c, the characteristic FT-IR absorption peaks at 3449, 1729, 1449, and 877 and 840 cm −1 correspond to O−H, C�O, C�C, and C−H, respectively.…”

Section: Resultsmentioning

confidence: 99%

Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO₃ Activation

Pang,

Yan,

Zhang

et al. 2024

Inorg. Chem.

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Spatial confinement of organic pollutants and reactive oxygen species (e.g., SO 4•− and • OH) with ultrashort lifetime inside the scale of chemical theoretical diffusion could provide a greatly promising strategy to overcome the limitation of mass transfer in the heterogeneous Fenton-like oxidation process. Herein, we first reported spatial confinement of cobalt nanoparticles in N-doped carbon nanorods (Co-NCNRs), by encapsulating Co nanoparticles into Ndoped carbon nanorods, in activating CaSO 3 for antibiotic degradation. Compared to Na 2 SO 3 and NaHSO 3 , CaSO 3 could slowly and persistently discharge SO 3 2− due to its low solubility, thus avoiding the depletion of the generated SO 3•− and • OH under the high concentration of sulfite ions. Fully physical characterizations confirmed that the 3D hydrogel was mostly transformed into the nanorod structure of Co-NCNRs at 550 °C. Co atoms were successfully nanoconfined into N-doped carbon nanorods, which contributes to mass transfer and prevents the agglomeration of Co nanoparticles, thus enhancing its catalytic activity and stability in activating CaSO 3 for water decontamination. The catalytic performance, kinetic research, influences of inorganic anions, pH, and degradation mechanism of chlortetracycline degradation catalyzed by the Co-NCNRs/CaSO 3 system have been studied in detail. This work not only proposed a facile method for synthesis of nanoconfined catalyst but also provided an excellent Co-NCNRs/ CaSO 3 system for wastewater treatment.

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“…pH is a significant factor for organic pollutant degradation during the Fenton or Fenton-like process. , As presented in Figure a, the glyphosate degradation over CuO/g-C 3 N 4 -4.0 assisted with H 2 O 2 was investigated under different original pH from 3.48 to 9.68. This result indicated that the removal efficiency of glyphosate reached higher than 97%, which illustrated that CuO/g-C 3 N 4 -4.0 was equipped with high performance for the degradation of glyphosate via H 2 O 2 in a wide pH working range.…”

Section: Environmental Significancementioning

confidence: 99%

CuO/g-C₃N₄ Nanocomposites for Enhanced Glyphosate Degradation: The Vital Role of High-Valent Copper

Luo,

Jin,

Liu

et al. 2024

ACS Appl. Nano Mater.

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Fenton-like reactions involving semiconductors and metal-based compounds have been widely reported for wastewater treatment. However, there are still some unknown areas that need to be explored, such as the degradation mechanism, the toxicity of the composite system, and active species. In this article, a series of CuO/g-C 3 N 4 nanocomposites were synthesized via calcination of a mixture of cupric sulfate (CuSO 4 •5H 2 O) and melamine. The construction and morphology of CuO/g-C 3 N 4 nanocomposites were characterized at length. In the presence of hydrogen peroxide (H 2 O 2 ), the catalytic capability of CuO/g-C 3 N 4 for glyphosate degradation was investigated. Our research showed that CuO/g-C 3 N 4 nanocomposites exhibited excellent catalytic performance for the removal of glyphosate within a wide pH scope (3.48−9.69), a high mineralization rate (68.1%), and a superior degradation rate (99.3%). This work revealed that high-valent copper (Cu(III)), rather than the hydroxyl radical ( • OH), played a major role in glyphosate removal. In addition, seed germination experiments confirmed that the biotoxicity of glyphosate to wheat seeds was greatly reduced after degradation via the CuO/g-C 3 N 4 /H 2 O 2 system. This study suggests that CuO/g-C 3 N 4 /H 2 O 2 can be a promising candidate for efficiently removing glyphosate from wastewater.

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Spatial confinement of Co-N-C catalyst in carbon nanocuboid for water Decontamination: High Performance, mechanism and biotoxicity assessment

Cited by 22 publications

References 78 publications

Revealing the primary role of the V⁴⁺/V⁵⁺ cycle in InVO₄ catalysts for promoting the photo-Fenton reaction

Revealing the primary role of the V⁴⁺/V⁵⁺ cycle in InVO₄ catalysts for promoting the photo-Fenton reaction

Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO₃ Activation

CuO/g-C₃N₄ Nanocomposites for Enhanced Glyphosate Degradation: The Vital Role of High-Valent Copper

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Spatial confinement of Co-N-C catalyst in carbon nanocuboid for water Decontamination: High Performance, mechanism and biotoxicity assessment

Cited by 22 publications

References 78 publications

Revealing the primary role of the V4+/V5+ cycle in InVO4 catalysts for promoting the photo-Fenton reaction

Revealing the primary role of the V4+/V5+ cycle in InVO4 catalysts for promoting the photo-Fenton reaction

Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO3 Activation

CuO/g-C3N4 Nanocomposites for Enhanced Glyphosate Degradation: The Vital Role of High-Valent Copper

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Revealing the primary role of the V⁴⁺/V⁵⁺ cycle in InVO₄ catalysts for promoting the photo-Fenton reaction

Revealing the primary role of the V⁴⁺/V⁵⁺ cycle in InVO₄ catalysts for promoting the photo-Fenton reaction

Spatial Confinement of Co Nanoparticles in N-Doped Carbon Nanorods for Wastewater Purification via CaSO₃ Activation

CuO/g-C₃N₄ Nanocomposites for Enhanced Glyphosate Degradation: The Vital Role of High-Valent Copper