Influence of BiOIO3 morphology on the photocatalytic efficiency of Z-scheme BiOIO3/g-C3N4 heterojunctioned composite for Hg0 removal

Zhang, Xia; Wang, Daolei; Man, Xiaokun; Wu, Jiang; Liu, Qizhen; Qi, Yongfeng; Liu, Zhiqiang; Zhao, Xiao-Yan; Hao, Chenyu

doi:10.1016/j.jcis.2019.09.077

Cited by 100 publications

(16 citation statements)

References 61 publications

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“…The nitrogen adsorption and desorption curves were tested the specific surface area and pore size distribution of the photocatalyst, as shown in Figure . At relatively high pressures, all isothermal curves show type IV isothermal curves with type H3 hysteresis loops, indicating that the pore structure is mesoporous . Meanwhile, the BET specific surface area, as well as other detailed structural information, such as pore volume and pore size, of all samples are listed in Table .…”

Section: Results and Discussionmentioning

confidence: 99%

“…At relatively high pressures, all isothermal curves show type IV isothermal curves with type H3 hysteresis loops, indicating that the pore structure is mesoporous. 41 Meanwhile, the BET specific surface area, as well as other detailed structural information, such as pore volume and pore size, of all samples are listed in Table 1. The specific surface area of Cu 3 SnS 4 , CeO 2 , CC1, CC2, CC3 and CC4 were determined as 20.98, 67.41, 23.32, 13.16, 11.85, 14.06 cm 3 /g, respectively.…”

Section: Crystal Structure and Morphology Characterization Of Cumentioning

confidence: 99%

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3D/0D Cu₃SnS₄/CeO₂ Heterojunction Photocatalyst with Dual Redox Pairs Synergistically Promotes the Photocatalytic Reduction of CO₂

et al. 2022

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As an inexpensive bimetallic sulfide with a narrow band gap, Cu3SnS4 has been widely used in solar-energy-driven catalytic reactions. However, the traditional tetragonal Cu3SnS4 has the inherent defect of fewer surface active sites and poor photogenerated carrier transport performance, which requires further modification to improve the CO2 photocatalytic reduction performance of tetragonal Cu3SnS4. In this work, the Cu3SnS4/CeO2 binary composites with dual redox pairs of Ce4+/Ce3+ and Cu2+/Cu+ were successfully designed and prepared via a simple solvothermal method as a bridge for the synthesis of composite materials. A series of characterizations, such as X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), photocurrent (PC), electrochemical impedance spectroscopy (EIS), etc., have confirmed that dual redox pairs and heterojunction synergistically improve the photochemical properties of hybrid Cu3SnS4/CeO2. Because of the unique three-dimensional/zero-dimensional (3D/0D) hierarchical structure of Cu3SnS4/CeO2, the splendid light absorption characteristic of Cu3SnS4 was retained, and the specific surface area of CC1 composite was improved. In addition, the water static contact angle experiments showed that the hydrophilicity of composites is inhibited. As a consequence, the fabricated CC1 composite with dual redox pairs acquires CO evolution that is 2.63 times greater than that observed for pristine Cu3SnS4. The innovative study will provide a feasible orientation for the field of solar energy-driven CO2 reduction reaction.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Crystal Structure and Morphology Characterization Of Cumentioning

confidence: 99%

3D/0D Cu₃SnS₄/CeO₂ Heterojunction Photocatalyst with Dual Redox Pairs Synergistically Promotes the Photocatalytic Reduction of CO₂

et al. 2022

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“…The rapid development of industry and significant increase in population has caused serious environmental pollution. [1][2][3][4][5][6] Developing green and efficient technologies to remove pollutants from the environment is extremely urgent for the continuous development of society. [7][8][9][10][11] To date, several technologies for the elimination of water contaminant have been developed, such as adsorption, filtration, and precipitation.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient photocatalytic organic dyes degradation based on 1D magnetic Bi₂Fe₄O₉/C@AgBr composite

Chen

Liu

et al. 2022

Applied Organom Chemis

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Wastewater treatment has become a research hot issue in recent decade.Organic dyes as one of the main pollutants can change the water behavior. To deracinate the organic pollutants from wastewater, there are numerous methods have been taken into consideration. Photocatalysis is the promising strategy for the dye degradation with low cost, high efficiency, and environmental friendliness. Hence, a novel one-dimensional (1D) magnetic Bi 2 Fe 4 O 9 / C@AgBr composite photocatalyst was prepared employing electrospinning, calcination, and deposition-precipitation methods. The morphology and composition of photocatalyst were characterized, as well as the photocatalytic activities of degrading methylene blue (MB) under visible light were investigated. And the results exhibited that the efficiency of Bi 2 Fe 4 O 9 /C@AgBr under visible light for 60 min is 97.4%. After three cycles, the degradation efficiency of MB could still reach 88.0%. Moreover, radical quenching experiment implicated superoxide radical anions as the primary active species responsible for photodegradation of MB. This work provides a new insight into the design of effective photocatalysts for practical application.

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“…In addition, g-C 3 N 4 is an attractive photocatalyst with a suitable band gap of about 2.7 eV that has exhibited superior photocatalytic ability. [24][25][26] The previous studies reported that the Z-scheme heterojunction structure can be constructed by coupling g-C 3 N 4 and BiOIO 3 , 13,27,28 and this can cover the shortage of weak reducibility of BiOIO 3 due to its relatively positive conduction band potential.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient removal of 2,4‐dichlorophenal over a novel dual Z‐scheme heterojunction of Bi₇O₉I₃/BiOIO₃/g‐C₃N₄ under visible‐light irradiation: performance and mechanism

You

Pan

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND 2,4‐Dichlorophenol (2,4‐DCP) is widely used as a preservative, pesticide, germicide, etc. However, it is very damaging to organisms and the environment, and it is difficult to decompose because of its high stability. To improve the photocatalytic ability of photocatalysts for degrading hazardous substances, like 2,4‐DCP, constructing heterojunction is an effective strategy because of its restraint of electron–hole recombination and extension of light absorption spectra. RESULTS A novel photocatalyst Bi7O9I3/BiOIO3/g‐C3N4 was successfully synthesized by one‐step in‐situ co‐crystallization method. The formation of Bi7O9I3/BiOIO3/g‐C3N4 composite was confirmed by X‐ray diffractometer (XRD), X‐ray photoelectron spectroscopy (XPS), fourier transform infrared spectrometer (FTIR spectrometer) and transmission electron microscope (TEM). The obtained optimal composite exhibited an excellent photocatalytic performance of degrading 2,4‐DCP with an efficiency of 95% under visible‐light irradiation. The trapping experiments indicated that superoxide radicals, electrons, and singlet oxygen played vital roles in 2,4‐DCP decomposition and confirmed the dual Z‐scheme heterojunction structure of Bi7O9I3/BiOIO3/g‐C3N4. Furthermore, the possible reaction pathway was deduced based on the trapping experiments and the intermediate products detected by liquid chromatography tandem mass spectrometry. CONCLUSION The photocatalytic performance of Bi7O9I3/BiOIO3/g‐C3N4 was enhanced because the more efficient separation and transfer of photogenerated charge carriers was achieved due to the formation of dual Z‐scheme heterojunction. This work presented a simple and feasible synthesis method to prepare a ternary photocatalyst for improving the photocatalytic ability, and it can assist in further understanding the reaction mechanism of 2,4‐DCP degradation. © 2022 Society of Chemical Industry (SCI).

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Influence of BiOIO3 morphology on the photocatalytic efficiency of Z-scheme BiOIO3/g-C3N4 heterojunctioned composite for Hg0 removal

Cited by 100 publications

References 61 publications

3D/0D Cu₃SnS₄/CeO₂ Heterojunction Photocatalyst with Dual Redox Pairs Synergistically Promotes the Photocatalytic Reduction of CO₂

3D/0D Cu₃SnS₄/CeO₂ Heterojunction Photocatalyst with Dual Redox Pairs Synergistically Promotes the Photocatalytic Reduction of CO₂

Highly efficient photocatalytic organic dyes degradation based on 1D magnetic Bi₂Fe₄O₉/C@AgBr composite

Highly efficient removal of 2,4‐dichlorophenal over a novel dual Z‐scheme heterojunction of Bi₇O₉I₃/BiOIO₃/g‐C₃N₄ under visible‐light irradiation: performance and mechanism

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Influence of BiOIO3 morphology on the photocatalytic efficiency of Z-scheme BiOIO3/g-C3N4 heterojunctioned composite for Hg0 removal

Cited by 100 publications

References 61 publications

3D/0D Cu3SnS4/CeO2 Heterojunction Photocatalyst with Dual Redox Pairs Synergistically Promotes the Photocatalytic Reduction of CO2

3D/0D Cu3SnS4/CeO2 Heterojunction Photocatalyst with Dual Redox Pairs Synergistically Promotes the Photocatalytic Reduction of CO2

Highly efficient photocatalytic organic dyes degradation based on 1D magnetic Bi2Fe4O9/C@AgBr composite

Highly efficient removal of 2,4‐dichlorophenal over a novel dual Z‐scheme heterojunction of Bi7O9I3/BiOIO3/g‐C3N4 under visible‐light irradiation: performance and mechanism

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3D/0D Cu₃SnS₄/CeO₂ Heterojunction Photocatalyst with Dual Redox Pairs Synergistically Promotes the Photocatalytic Reduction of CO₂

3D/0D Cu₃SnS₄/CeO₂ Heterojunction Photocatalyst with Dual Redox Pairs Synergistically Promotes the Photocatalytic Reduction of CO₂

Highly efficient photocatalytic organic dyes degradation based on 1D magnetic Bi₂Fe₄O₉/C@AgBr composite

Highly efficient removal of 2,4‐dichlorophenal over a novel dual Z‐scheme heterojunction of Bi₇O₉I₃/BiOIO₃/g‐C₃N₄ under visible‐light irradiation: performance and mechanism