A Novel Bionic Flower-Like Z-Scheme Bi4o5i2/G-C3n5 Heterojunction with [[Equation]] / [[Equation]] Active Sites and Π-Conjugated Structure for Increasing Photocatalytic Oxidation of Elemental Mercury

Chu, Weiqun; Li, Site; Zhou, Hui; Shi, Min; Zhu, Jun; He, Ping; Liu, Wenyang; Wu, Maoliang; Wu, Jiang; Yan, Xin

doi:10.2139/ssrn.4162698

Cited by 3 publications

(2 citation statements)

References 48 publications

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“…Hence, it is reasonable to anticipate that the loss of some iodine atoms may result in a downward shift of the valence band maximum of BiOI. Therefore, iodine-deficient bismuth iodides such as Bi 4 O 5 I 2 , Bi 7 O 9 I 3 , and Bi 5 O 7 I can be obtained using calcination methods. − Zhu et al synthesized I-deficient BiOI ultrathin films with distinct photocatalytic activity using the solvothermal-calcination method and proved that iodine vacancies acted as traps for photogenerated holes . Yang et al synthesized iodine-vacancy-rich BiOI/Ag@AgI for visible-light-driven tetracycline degradation.…”

Section: Introductionmentioning

confidence: 99%

Alkali-Assisted Solvothermal Synthesis of I-deficient Nanoplatelet BiOI Microflowers with Enhanced Visible-Light Photocatalytic Performance for Degradation of Organic Pollutants

Zhong

et al. 2023

ACS Appl. Nano Mater.

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I-deficient nanoplatelet bismuth oxyiodide (BiOI) microflowers were successfully synthesized via a one-pot solvothermal method using NaOH. Results demonstrated that OH– played a key role in regulating the morphology, pore structure, and energy band structure of the prepared samples. As the volume of NaOH increased, the size of the BiOI microflowers gradually decreased, and the specific surface area and pore volume increased, providing more accessible active sites for photocatalytic reactions. Additionally, some iodine atoms in B-7 (i.e., 7 mL of a 1.0 M NaOH solution was added during the synthesis process) were replaced by hydroxide ions, affording B-7 with slight defects. The loss of iodine atoms shifted the valence band maximum (VBM) from 1.372 eV for the pristine BiOI (B-0) to 1.596 eV for I-deficient BiOI (B-7). The lowered VBM provides more oxidative holes, which is favorable for the oxidation reaction. The photocatalytic activities of the prepared samples were evaluated via the photodegradation of various organic pollutants, such as methyl orange, Rhodamine B, and phenol, under visible light. Owing to the higher surface area and pore volume, lower VBM, and presence of surface defects, B-7 exhibited the highest degradation efficiency among all of the samples.

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Section: Introductionmentioning

confidence: 99%

Alkali-Assisted Solvothermal Synthesis of I-deficient Nanoplatelet BiOI Microflowers with Enhanced Visible-Light Photocatalytic Performance for Degradation of Organic Pollutants

Zhong

et al. 2023

ACS Appl. Nano Mater.

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“…In recent years, g-C 3 N 5 -based heterojunction production has become increasingly significant in photocatalysis and other applications. There are currently very few studies on Z-Scheme mechanisms for g-C 3 N 5 -based heterojunctions, including Ag 3 PO 4 /C 3 N 5 [58], FeOCl/g-C 3 N 5 [59], Bi 4 O 5 I 2 /g-C 3 N 5 [60], LaCoO 3 /g-C 3 N 5 [61] and Bi 2 WO 6 /g-C 3 N 5 [62,63]. Still, there is no report carried out on Cu 3 TiO 4 /g-C 3 N 5 heterojunction fabrication and photocatalytic application.…”

Section: Introductionmentioning

confidence: 99%

Direct Z-Scheme g-C3N5/Cu3TiO4 Heterojunction Enhanced Photocatalytic Performance of Chromene-3-Carbonitriles Synthesis under Visible Light Irradiation

et al. 2022

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In order to make the synthesis of pharmaceutically active carbonitriles efficient, environmentally friendly, and sustainable, the method is regularly examined. Here, we introduce a brand-new, very effective Cu3TiO4/g-C3N5 photocatalyst for the production of compounds containing chromene-3-carbonitriles. The direct Z-Scheme photo-generated charge transfer mechanism used by the Cu3TiO4/g-C3N5 photocatalyst results in a suppressed rate of electron-hole pair recombination and an increase in photocatalytic activity. Experiments showed that the current method has some advantages, such as using an environmentally friendly and sustainable photocatalyst, having a simple procedure, quick reaction times, a good product yield (82–94%), and being able to reuse the photocatalyst multiple times in a row without noticeably decreasing its photocatalytic performance.

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Novel fabrication of the recyclable Bi7O9I3/chitosan and BiOI/chitosan heterostructure with improved photocatalytic activity for degradation of dimethyl phthalate under visible light

Doust

Sharafi

Jaafari

2023

Environ Sci Pollut Res

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A Novel Bionic Flower-Like Z-Scheme Bi4o5i2/G-C3n5 Heterojunction with [[Equation]] / [[Equation]] Active Sites and Π-Conjugated Structure for Increasing Photocatalytic Oxidation of Elemental Mercury

Cited by 3 publications

References 48 publications

Alkali-Assisted Solvothermal Synthesis of I-deficient Nanoplatelet BiOI Microflowers with Enhanced Visible-Light Photocatalytic Performance for Degradation of Organic Pollutants

Alkali-Assisted Solvothermal Synthesis of I-deficient Nanoplatelet BiOI Microflowers with Enhanced Visible-Light Photocatalytic Performance for Degradation of Organic Pollutants

Direct Z-Scheme g-C3N5/Cu3TiO4 Heterojunction Enhanced Photocatalytic Performance of Chromene-3-Carbonitriles Synthesis under Visible Light Irradiation

Novel fabrication of the recyclable Bi7O9I3/chitosan and BiOI/chitosan heterostructure with improved photocatalytic activity for degradation of dimethyl phthalate under visible light

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