Dataset Information

Efficient and recyclable Nd³⁺-doped CoFe₂O₄ for boosted visible light-driven photocatalytic degradation of Rhodamine B dye.

ABSTRACT: Rare earth metal doping spinel ferrites offer excellent electronic, magnetic, and photocatalytic properties, but they have not been well explored for environmental mitigation. Herein, we report the facile fabrication of novel CoNd _x Fe_2-x O₄ (x = 0-0.05) photocatalysts based on Nd³⁺ incorporated into CoFe₂O₄ for the degradation of Rhodamine B under visible light irradiation. The Nd³⁺ dopant considerably increased the specific surface area (35 m² g^-1) and enhanced the degradation performance (94.7%) of CoNd _x Fe_2-x O₄ catalysts. Nd³⁺-doped CoFe₂O₄ played a role in the formation of radicals, including ˙OH, h⁺, and ˙O₂ ^-. With high recyclability and performance, CoNd_0.05Fe_1.95O₄ nanoparticles can be efficient and reusable photocatalysts for degrading organic dyes, including Rhodamine B from wastewaters.

SUBMITTER: Nguyen LTT

PROVIDER: S-EPMC10089080 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Efficient and recyclable Nd3+-doped CoFe2O4 for boosted visible light-driven photocatalytic degradation of Rhodamine B dye.

Nguyen Loan T T LTT Nguyen Hang T T HTT Nguyen Lan T H LTH Duong Anh T T ATT Nguyen Hai Q HQ Ngo Viet T M VTM Vu Nhuong V NV Nguyen Duyen Thi Cam DTC Tran Thuan Van TV

RSC advances 20230411 16

Rare earth metal doping spinel ferrites offer excellent electronic, magnetic, and photocatalytic properties, but they have not been well explored for environmental mitigation. Herein, we report the facile fabrication of novel CoNd x Fe2-x O4 (x = 0-0.05) photocatalysts based on Nd3+ incorporated into CoFe2O4 for the degradation of Rhodamine B under visible light irradiation. The Nd3+ dopant consider ...[more]

PMID: 37056968

Similar Datasets

Project description:Eu was successfully incorporated into Sb2S3 thin films for proficient photocatalytic degradation of rhodamine B (RhB) dye under visible light. In this work, we reported the effect of incorporating Eu ions into Sb2S3 thin films at different doping levels to tailor their structural, optical, electrical, and photocatalytic properties. Grazing incidence X-ray diffraction (GIXRD) analysis revealed that the fabricated films exhibited an orthorhombic crystalline structure. Additionally, the GIXRD peaks shifted towards lower angles as the doping level increased. The Williamson-Hall method was used to estimate the effective crystallite size considering the strain components. The field emission scanning electron microscope (FESEM) characterisation demonstrated that the grain size decreased and a denser microstructure was observed as the Eu degree increased. The estimated optical band gap (E g) value increases from 1.67 eV to 1.72 eV as the level of Eu doping rises from 0 to 8 at%, making the films suitable for photocatalytic applications. The photocatalytic activities of the pristine and Eu-doped Sb2S3 thin films were evaluated by the degradation of highly toxic Rhodamine B (RhB) dye under dark and various light conditions for 120 min. A remarkable photodegradation rate was achieved with the optimal doping level of 4 at% of Eu, demonstrating a 90.99% degradation of RhB. Electrochemical impedance spectroscopy (EIS) measurements show that the lifespan of photoinduced electrons for 4 at% Eu3+ samples is approximately 10 fold higher than that of the pristine sample. In terms of chemical kinetics, the degradation of RhB by the Sb2S3:Eu (4 at% of Eu) photocatalyst was found to follow pseudo-first-order kinetics with a rate constant of 0.049 min-1 under visible light irradiation. A conceivable molecular mechanism for photocatalytic degradation of the RhB dye by Sb2S3:Eu photocatalysts is also provided. These results highlight the potential of Eu-doped Sb2S3 thin films for advanced photocatalytic applications. Specifically, Sb2S3:Eu 4 at% exhibits favourable properties. Thus, it was concluded that these photocatalysts are highly suitable for the remediation of dye-contaminated wastewater.

Dataset Information

Efficient and recyclable Nd³⁺-doped CoFe₂O₄ for boosted visible light-driven photocatalytic degradation of Rhodamine B dye.

Publications

Efficient and recyclable Nd<sup>3+</sup>-doped CoFe<sub>2</sub>O<sub>4</sub> for boosted visible light-driven photocatalytic degradation of Rhodamine B dye.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets