Novel nanoparticle-assembled tetrakaidekahedron Bi25FeO40 as efficient photo-Fenton catalysts for Rhodamine B degradation

Wang, Yan; Miao, Kangkang; Zhao, Weixing; Hong-bo, Jiang; Liu, Liangliang; Hu, Dengwei; Cui, Bin; Li, Yaping; Sun, Yue

doi:10.1016/j.apt.2022.103579

Cited by 8 publications

(15 citation statements)

References 59 publications

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“…These results suggest that the S-doping of Co 3 O 4 formed a mesoporous structure with more active sites, which facilitated PMS activation. 34…”

Section: Resultsmentioning

confidence: 99%

“…These results suggest that the S-doping of Co 3 O 4 formed a mesoporous structure with more active sites, which facilitated PMS activation. 34 Co 3 O 4 -450 + PMS, S-Co 3 O 4 + PMS, and PMS systems were explored to evaluate the organic dye degradation at room temperature. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…S10 †), causing the entire peak intensity of used S-Co 3 O 4 -450 in XRD and Raman spectrum to become smaller and broader than fresh S-Co 3 O 4 -450. 25,34,35 In addition, the cobalt leaching of S-Co 3 O 4 -450 was only 0.42 mg L −1 after reacting for 6 min according to ICP analysis, which was far lower than that of Co 3 O 4 -450 (3.03 mg L −1 ), as shown in Fig. 7f.…”

Section: Crystengcomm Papermentioning

confidence: 89%

“…The peak at 691 cm −1 was associated with octahedral CoO 6 sites possessing an A 1g mode 32,33. Compared with Co 3 O 4 -450, the Raman peak for S-Co 3 O 4 -450 was weakened and shifted to a lower wavenumber, indicating the formation of more surface OVs after the incorporation of S atoms 34,35. EPR was used to further analyze the OVs of the catalyst.…”

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confidence: 99%

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Construction of mesoporous S-doped Co₃O₄ with abundant oxygen vacancies as an efficient activator of PMS for organic dye degradation

Kang

Deng

2023

CrystEngComm

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“…These results suggest that the S-doping of Co 3 O 4 formed a mesoporous structure with more active sites, which facilitated PMS activation. 34…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Crystengcomm Papermentioning

confidence: 89%

mentioning

confidence: 99%

See 2 more Smart Citations

Construction of mesoporous S-doped Co₃O₄ with abundant oxygen vacancies as an efficient activator of PMS for organic dye degradation

Kang

Deng

2023

CrystEngComm

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“…However, we can still see that even if the photocurrent decreases, it is still stronger than the photocurrent response of Cu-CN and g-C 3 N 4 samples. [46][47][48] Moreover, PL spectra were recorded to explore the electronic properties (charge separation, migration, and transfer) of the raw and modified g-CN (Figure 2i). It is well acknowledged that a higher PL intensity indicates faster recombination of charge carriers, resulting in lower photocatalytic activity.…”

Section: Photo-fenton Performances and Photoelectrochemical Propertie...mentioning

confidence: 99%

A Rapid Effervescent Route to Rational Activation of Cu/g‐C₃N₄ and bulk MoS₂ Cocatalyst for Highly Efficient and Robust Photo‐Fenton Process

Ding

Kang

et al. 2022

Adv Materials Inter

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hazardous substances. Among the popular AOPs, the homogeneous and heterogeneous Fenton reactions are most promising with their preponderance in the vast application range, strong anti-interference ability, simple operation, and rapid degradation speeds. [1,2] However, three main limitations still challenge the practical application of the classic homogeneous Fenton process using iron or copper ions, including the slow-cycling efficiency of Fe 3+ /Fe 2+ or Cu 2+ /Cu + , accumulation of iron/copper-containing sludge, and strict requirement of low pH (3.0-4.0). [3,4] Researchers have gradually turned to heterogeneous Fenton-like catalysis to avoid the generation of ferric hydroxide sludge and circumvent the limitation of the acidic pH range on homogeneous Fenton reactions. [5] To address the aforementioned issues, strenuous efforts have been devoted to designing Fe or Cu species in solid catalysts. They are usually given priority in superior heterogeneous Fenton catalysts because of the low cost, negligible toxicity, high catalytic activity, and ease of recovery. [6] Therefore, combining Fenton-like systems with photocatalysts has attracted intensive research interest with their rapid development.Graphitic carbon nitride (g-CN)-supported Fe, Cu catalysts are well recognized as good choices for heterogeneous photo-Fenton catalysts. As the host, g-CN serves as a visible-lightactive metal-free polymeric semiconductor with an appropriate band gap (≈2.7 eV) to harvest solar photon energy efficiently. [7] It can also be employed to construct various highly tailorable composite photocatalysts with adjustable compositions, sizes, pore structures, morphology, and electronic structures. [8][9][10] g-CN can be loaded with Fe or Cu atoms and nanoparticles to form high-performance Fe-CN or Cu-CN photo-Fenton systems, which further accelerates the rate-limiting Fe 3+ /Fe 2+ or Cu 2+ /Cu + reduction process and circulation of high-valence metal ions in the presence of light, thus avoiding the generation of hazardous iron or copper sludge.Up to now, the efficiency of photo-Fenton systems is still unsatisfactory for industrial applications. To further improve the efficiency of heterogeneous Fenton-like reactions, much effort has been carried out to optimize AOPs, including the strategy of adding co-catalysts to boost •OH or singlet oxygen Heterogeneous Fenton-like process with a wide pH range is a promising alternative to traditional homogeneous Fenton reactions. Recently, the boosting effect of MoS 2 cocatalysts is widely recognized in Fenton reactions, and the primary mechanism is the promotion of the reduction and recycling of high-valence metal ions. Unfortunately, integrating heterogeneous Fenton-like catalysts and MoS 2 cocatalyst to form an efficient system remains challenging due to the severe deactivation of MoS 2 and the inability of simple physical mixing to speed up the reaction. For the first time, the direct activation of commercially available bulk MoS 2 powder in a durable acidic micro environment is achieved. The fo...

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Adsorption mechanism and electrochemical properties of disperse blue 2BLN onto magnetic Cu_0.₂Zn₀_.₃Co₀_.₅Fe₂O₄ nanoparticles prepared via the rapid combustion process

Zhou,

Lv,

Wang

et al. 2024

Env Prog and Sustain Energy

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Magnetic Cu0.2Zn0.3Co0.5Fe2O4 nanoparticles were prepared by the rapid combustion method and characterized by scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), x‐ray diffraction (XRD), and vibrating sample magnetometer (VSM). The average particle size and the saturation magnetization of the nanoparticles prepared at 400°C with 25 mL absolute alcohol were about 60.9 nm and 50 emu/g. The results of the experiment displayed that the adsorption process agreed with the pseudo‐second‐order kinetics model (R2 > 0.98) and Langmuir isotherm model (R2 = 0.9982), indicating that the adsorption of DB‐2BLN onto magnetic Cu0.2Zn0.3Co0.5Fe2O4 nanoparticles was monolayer chemisorption. ΔH (ΔH = −28.0135 kJ/mol) of the thermodynamic experiment was less than 0, indicating that the adsorption was an exothermic process. The effects of pH, initial concentration of dye, ionic strength, temperature, and adsorbent dosage on the adsorption process of DB‐2BLN onto magnetic Cu0.2Zn0.3Co0.5Fe2O4 nanoparticles and the regeneration performance of the nanoparticles were investigated. When the pH was determined to be 2 and the adsorbent dosage was 5 mg, the adsorption capacity reached the maximum. After 7 cycles, the removal rate of DB‐2BLN still reached 92.6% of that for the first adsorption, showing excellent regeneration performance. Finally, the electrochemical properties of the magnetic Cu0.2Zn0.3Co0.5Fe2O4 nanoparticles were investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS).

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Novel nanoparticle-assembled tetrakaidekahedron Bi25FeO40 as efficient photo-Fenton catalysts for Rhodamine B degradation

Cited by 8 publications

References 59 publications

Construction of mesoporous S-doped Co₃O₄ with abundant oxygen vacancies as an efficient activator of PMS for organic dye degradation

Construction of mesoporous S-doped Co₃O₄ with abundant oxygen vacancies as an efficient activator of PMS for organic dye degradation

A Rapid Effervescent Route to Rational Activation of Cu/g‐C₃N₄ and bulk MoS₂ Cocatalyst for Highly Efficient and Robust Photo‐Fenton Process

Adsorption mechanism and electrochemical properties of disperse blue 2BLN onto magnetic Cu_0.₂Zn₀_.₃Co₀_.₅Fe₂O₄ nanoparticles prepared via the rapid combustion process

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Novel nanoparticle-assembled tetrakaidekahedron Bi25FeO40 as efficient photo-Fenton catalysts for Rhodamine B degradation

Cited by 8 publications

References 59 publications

Construction of mesoporous S-doped Co3O4 with abundant oxygen vacancies as an efficient activator of PMS for organic dye degradation

Construction of mesoporous S-doped Co3O4 with abundant oxygen vacancies as an efficient activator of PMS for organic dye degradation

A Rapid Effervescent Route to Rational Activation of Cu/g‐C3N4 and bulk MoS2 Cocatalyst for Highly Efficient and Robust Photo‐Fenton Process

Adsorption mechanism and electrochemical properties of disperse blue 2BLN onto magnetic Cu0.2Zn0.3Co0.5Fe2O4 nanoparticles prepared via the rapid combustion process

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Construction of mesoporous S-doped Co₃O₄ with abundant oxygen vacancies as an efficient activator of PMS for organic dye degradation

Construction of mesoporous S-doped Co₃O₄ with abundant oxygen vacancies as an efficient activator of PMS for organic dye degradation

A Rapid Effervescent Route to Rational Activation of Cu/g‐C₃N₄ and bulk MoS₂ Cocatalyst for Highly Efficient and Robust Photo‐Fenton Process

Adsorption mechanism and electrochemical properties of disperse blue 2BLN onto magnetic Cu_0.₂Zn₀_.₃Co₀_.₅Fe₂O₄ nanoparticles prepared via the rapid combustion process