Novel photocatalytic performance of magnetically recoverable MnFe2O4/BiVO4 for polluted antibiotics degradation

Cam, Nguyen Thi Dieu; Pham, Hai-Dinh; Pham, Thanh-Dong; Phương, Trần Thị Thu; Hoàng, Cao Văn; Tùng, Mai Hùng Thanh; Trung, Nguyễn Tiến; Hương, Nguyễn Thúy; Hien, Tran Thi Thu

doi:10.1016/j.ceramint.2020.08.285

Cited by 59 publications

(4 citation statements)

References 43 publications

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“…As shown in Figure a, there were two single peaks for Bi 4f at 158.9 and 164.2 eV, corresponding to the binding energies of Bi 4f 7/2 and Bi 4f 5/2 , respectively . The spectrum of V 2p shown in Figure b could be split into two peaks relating to V 5+ : the characteristic peaks appearing at 516.5 and 523.8 eV were attributed to V 2p 3/2 and V 2p 1/2 , respectively . In the O 1s spectrum (Figure c), the peaks with binding energies of 529.6, 531.2, and 532.2 eV belonged to lattice oxygen (O L ), oxygen vacancy (O V ), and adsorbed oxygen (O A ) in Co/BiVO 4 -V o , respectively .…”

Section: Results and Discussionmentioning

confidence: 90%

“…34 The spectrum of V 2p shown in Figure 4b could be split into two peaks relating to V 5+ : the characteristic peaks appearing at 516.5 and 523.8 eV were attributed to V 2p 3/2 and V 2p 1/2 , respectively. 35 In the O 1s spectrum (Figure 4c), the peaks with binding energies of 529.6, 531.2, and 532.2 eV belonged to lattice oxygen (O L ), oxygen vacancy (O V ), and adsorbed oxygen (O A ) in Co/ BiVO 4 -V o , respectively. 12 It could be seen that the percentage of Ov gradually increased, which corroborated with the EPR results, once again proving the successful construction of oxygen vacancies.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO₄ for Rapid Tetracycline Degradation

Chen,

Meng,

Feng

et al. 2024

Langmuir

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In this work, cobalt-doped oxygen-vacancies-rich BiVO 4 (Co/BiVO 4 -V o ) was successfully synthesized for the degradation of tetracycline (TC) by activated peroxymonosulfate (PMS) under visible light. The morphologies, microstructures, and optical properties of the photocatalysts were analyzed in detail. Co/BiVO 4 -V o exhibited significantly enhanced degradation, removing 92.3% of TC within 10 min, which was greater than those of pure BiVO 4 (62.2%) and oxygenvacancies-rich BiVO 4 (BiVO 4 -V o ) (72.0%), respectively. The photogenerated charge separation and transport properties were explored through surface photovoltage (SPV), photoluminescence spectrum (PL), and UV−vis diffuse reflectance spectroscopy (UV−vis DRS) measurements. Additionally, an in-depth investigation was conducted on the photocatalytically assisted advanced oxidation processes based on SO 4•− (SR-AOPs) for the degradation of organic pollutants. The experimental results showed that the introduction of oxygen vacancies and Co doping achieved an effective separation of photogenerated carriers, which could accelerate the cycling between Co 3+ and Co 2+ and further activate PMS. The results of free radical capture experiments and electron spin resonance (ESR) experiments showed that reactive oxygen species (ROSs) such as 1 O 2 , •O 2 − , and SO 4•− played a dominant role in the removal of pollutants. This work provides a novel insight into the further development of efficient and rapid PMS photoactivators for environmental remediation of water bodies.

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Section: Results and Discussionmentioning

confidence: 90%

Section: ■ Results and Discussionmentioning

confidence: 99%

Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO₄ for Rapid Tetracycline Degradation

Chen,

Meng,

Feng

et al. 2024

Langmuir

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“…This material presented excellent dye degradation under visible light, which was also ascribed to the formation of type-II heterojunction, due to its enhancement to visible light absorption and charge carrier mobility. Cam et al decorated MnFe 2 O 4 on BiVO 4 via the hydrothermal method (Dieu Cam et al 2021), and applied the composite in TC degradation under visible light. As for the optimal composite, the molar ratio of MnFe 2 O 4 : BiVO 4 was 30%.…”

Section: Spinel Ferrite/other Bi-based Materialsmentioning

confidence: 99%

Recent advances in spinel ferrite-based magnetic photocatalysts for efficient degradation of organic pollutants

Song

2023

Water Science and Technology

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Although spinel ferrite (MFe2O4, M = Zn, Ni, Mn, etc.) has been reported as a promising catalyst, its low photocatalytic activity under visible light greatly restricts its practical application. Spinel ferrite-based photocatalytic composites have exhibited improved efficiency for pollutant degradation, due to interface charge carrier mobility and structural modification. Meanwhile, due to its magnetism and stability, spinel ferrite composite can be easily recycled for long-term utilization, showing its high application potential. In this review, the recent advances in the construction and photocatalytic degradation of spinel ferrite composites are discussed, with an emphasis on the relationship between structural property and photocatalytic activity. In addition, to improve their photocatalytic application, the challenges, gaps and future research prospects are proposed.

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“…However, the carrier conduction of BiVO 4 was low, and plenty of photo‐generated electrons will gather in the surface of the catalyst, thus increasing the probability of recombination of electrons and holes, and affecting its photocatalytic activity. Doped it with metal elements, [38–40] metal oxides [41–43] and semiconductors, [44–46] as well as surface modification, [47] can solve these defects. TiO 2 is a kind of widely used photocatalyst which can degrade various organic pollutants efficiently, due to its good stability, low price and high photocatalytic ability [48–49] .…”

Section: Introductionmentioning

confidence: 99%

Preparation of BiVO₄/RGO‐TNT Nanomaterials for Efficient and Recyclable Photocatalysis of Imidacloprid Insecticide

et al. 2022

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The photocatalytic composites based on BiVO4, TiO2 nanotubes (TNT) and reduced graphene oxide (RGO) were synthesized by a one‐step hydrothermal synthesis method. The properties and structures of the samples were characterized by SEM, XRD, UV‐Vis DRS, Raman spectroscopy, photoluminescence spectroscopy and XPS. The effects of RGO‐TNT loading, pH, and dosage of catalysts on degradation efficiency were tested. The best removal results were occured on the condition that loading amount of RGO‐TNT was 10 %, solution pH 10, and catalyst dosage was 1.4 g L−1. The obtained ternary composite with 10 wt% RGO‐TNT exhibited a significant enhancement in photocatalytic efficiency due to the lower band gap with enhanced light absorption and a suppression in the recombination rates of the photogenerated charge carriers, and about 73 % of imidacloprid was degraded within 30 min under UV irradiation. Furthermore, BiVO4/RGO‐TNT‐10 can be reused for 6 times without obvious catalysis loss. Trapping experiments showed that hydroxyl radicals were the main active species in the imidacloprid photocatalytic degradation, and a possible photocatalytic mechanism was proposed based on the results of trapping experiments.

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Novel photocatalytic performance of magnetically recoverable MnFe2O4/BiVO4 for polluted antibiotics degradation

Cited by 59 publications

References 43 publications

Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO₄ for Rapid Tetracycline Degradation

Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO₄ for Rapid Tetracycline Degradation

Recent advances in spinel ferrite-based magnetic photocatalysts for efficient degradation of organic pollutants

Preparation of BiVO₄/RGO‐TNT Nanomaterials for Efficient and Recyclable Photocatalysis of Imidacloprid Insecticide

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Novel photocatalytic performance of magnetically recoverable MnFe2O4/BiVO4 for polluted antibiotics degradation

Cited by 59 publications

References 43 publications

Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO4 for Rapid Tetracycline Degradation

Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO4 for Rapid Tetracycline Degradation

Recent advances in spinel ferrite-based magnetic photocatalysts for efficient degradation of organic pollutants

Preparation of BiVO4/RGO‐TNT Nanomaterials for Efficient and Recyclable Photocatalysis of Imidacloprid Insecticide

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Product

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Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO₄ for Rapid Tetracycline Degradation

Efficient Photocatalytic Activation of Peroxymonosulfate by Cobalt-Doped Oxygen-Vacancies-Rich BiVO₄ for Rapid Tetracycline Degradation

Preparation of BiVO₄/RGO‐TNT Nanomaterials for Efficient and Recyclable Photocatalysis of Imidacloprid Insecticide