Outstanding photo-thermo synergy in aerobic oxidation of cyclohexane by bismuth tungstate-bismuth oxychloride high-low heterojunction

Zheng, Jie; Liu, Jincheng; Xu, Feng; Liu, Jiarong; Zong, Shuang; Liu, Lingling; Fang, Yanxiong

doi:10.1016/j.jcis.2023.07.172

Cited by 11 publications

(2 citation statements)

References 64 publications

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“…Highresolution XPS (HR-XPS) analysis of Bi4f in the pre-and post-photocatalytic degradation Bi2O3 samples (Figure 9b) showed that two feature peaks of the binding energies of 159.1 and 164.5 eV corresponded to Bi 4f7/2 and Bi 4f5/2 of the trivalent bismuth ion (Bi 3+ ), respectively [78,79]. Figure 9c displays the HR-XPS analysis of the post-degradation Bi2O3 microrods, from which we can see that the two highest-intensity peaks located at around 199.8 and 198.2 eV corresponded to Cl 2p1/2 and Cl 2p3/2 in the region of Cl 2p, respectively, which demonstrated that BiOCl was easily produced on the surface of Bi2O3 after degradation in the acidic environment [80].…”

Section: Xps and Ftir Analyses Of The Bi2o3 Microrodsmentioning

confidence: 98%

Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

Ma,

Tang,

et al. 2024

Materials

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In the present work, the photodegradation of Rhodamine B with different pH values by using Bi2O3 microrods under visible-light irradiation was studied in terms of the dye degradation efficiency, active species, degradation mechanism, and degradation pathway. X-ray diffractometry, polarized optical microscopy, scanning electron microscopy, fluorescence spectrophotometry, diffuse reflectance spectra, Brunauer–Emmett–Teller, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, UV–visible spectrophotometry, total organic carbon, and liquid chromatography–mass spectroscopy analysis techniques were used to analyze the crystal structure, morphology, surface structures, band gap values, catalytic performance, and mechanistic pathway. The photoluminescence spectra and diffuse reflectance spectrum (the band gap values of the Bi2O3 microrods are 2.79 eV) reveals that the absorption spectrum extended to the visible region, which resulted in a high separation and low recombination rate of electron–hole pairs. The photodegradation results of Bi2O3 clearly indicated that Rhodamine B dye had removal efficiencies of about 97.2%, 90.6%, and 50.2% within 120 min at the pH values of 3.0, 5.0, and 7.0, respectively. In addition, the mineralization of RhB was evaluated by measuring the effect of Bi2O3 on chemical oxygen demand and total organic carbon at the pH value of 3.0. At the same time, quenching experiments were carried out to understand the core reaction species involved in the photodegradation of Rhodamine B solution at different pH values. The results of X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, and X-ray diffractometer analysis of pre- and post-Bi2O3 degradation showed that BiOCl was formed on the surface of Bi2O3, and a BiOCl/Bi2O3 heterojunction was formed after acid photocatalytic degradation. Furthermore, the catalytic degradation of active substances and the possible mechanism of the photocatalytic degradation of Rhodamine B over Bi2O3 at different pH values were analyzed based on the results of X-ray diffractometry, radical capture, Fourier-transform infrared spectroscopy, total organic carbon analysis, and X-ray photoelectron spectroscopy. The degradation intermediates of Rhodamine B with the Bi2O3 photocatalyst in visible light were also identified with the assistance of liquid chromatography–mass spectroscopy.

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Section: Xps and Ftir Analyses Of The Bi2o3 Microrodsmentioning

confidence: 98%

Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

Ma,

Tang,

et al. 2024

Materials

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“…1,2 Thus, antibiotic contaminants have attracted extensive attention in environment remediation. Many strategies have been developed for relieving antibiotic pollution, such as photocatalysis, 3 electrocatalysis, 4 thermocatalysis, 5 etc . Among these, photocatalysis is relatively low cost and environmentally friendly, and has no secondary pollution, 6–9 and is regarded as one of the most effective ways to deal with antibiotic pollution.…”

Section: Introductionmentioning

confidence: 99%

In situ sonochemical synthesis of flower-like N-graphyne/BiOCl_0.5Br_0.5 microspheres for efficient removal of levofloxacin

Li,

Sun,

Huang

et al. 2024

Dalton Trans.

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Achieving Higher Efficiency on N₂ Reduction Reaction through Mo‐ and Bi‐Based Active Sites for Sustainable Photoelectrochemical Ammonia Production

Jesudass,

Jo,

Kim

et al. 2024

Solar RRL

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Hydrogen energy from water splitting is considered the highly anticipated modern energy resource; however, storage and transportation require complex and high‐cost facilities, which argue about the efficiency of hydrogen fuel compared to conventional fuels. Thereby, ammonia (NH3), which is a liquid at ambient conditions, promises a lower cost of storage and transportation, but the production of ammonia imposes difficulties with selectivity and efficiency over several products and, notably, hydrogen evolution reaction. Among several methods combining the advantages of electrochemical and photocatalytic properties, the photoelectrochemical (PEC) method is destined to improve the efficiency of ammonia production from N2 reduction reaction (NRR). Because of the multistep NRR process, enormous negative potentials, and poor reaction kinetics, the activity and selectivity of NRR are severely compromised. Therefore, Mo‐ and Bi‐based catalysts are rationally developed to promote the activity and selectivity of NRR processes. Combining the benefits of Mo‐ and Bi‐based catalysts is anticipated to result in highly effective PEC NRR activity. This review is predicted to emphasize the role and characteristics of PEC NRR and the value of Mo and Bi catalysts in raising ammonia's activity and selectivity.

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Outstanding photo-thermo synergy in aerobic oxidation of cyclohexane by bismuth tungstate-bismuth oxychloride high-low heterojunction

Cited by 11 publications

References 64 publications

Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

In situ sonochemical synthesis of flower-like N-graphyne/BiOCl_0.5Br_0.5 microspheres for efficient removal of levofloxacin

Achieving Higher Efficiency on N₂ Reduction Reaction through Mo‐ and Bi‐Based Active Sites for Sustainable Photoelectrochemical Ammonia Production

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Outstanding photo-thermo synergy in aerobic oxidation of cyclohexane by bismuth tungstate-bismuth oxychloride high-low heterojunction

Cited by 11 publications

References 64 publications

Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

In situ sonochemical synthesis of flower-like N-graphyne/BiOCl0.5Br0.5 microspheres for efficient removal of levofloxacin

Achieving Higher Efficiency on N2 Reduction Reaction through Mo‐ and Bi‐Based Active Sites for Sustainable Photoelectrochemical Ammonia Production

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Product

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In situ sonochemical synthesis of flower-like N-graphyne/BiOCl_0.5Br_0.5 microspheres for efficient removal of levofloxacin

Achieving Higher Efficiency on N₂ Reduction Reaction through Mo‐ and Bi‐Based Active Sites for Sustainable Photoelectrochemical Ammonia Production