Cs3Bi2I9/g-C3N4 as a new binary photocatalyst for efficient visible-light photocatalytic processes

Bresolin, Bianca-Maria; Sgarbossa, Paolo; Bahnemann, Detlef W.; Sillanpää, Mika

doi:10.1016/j.seppur.2020.117320

Cited by 68 publications

(40 citation statements)

References 55 publications

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“…As mentioned in the Introduction section, Cs 3 Bi 2 I 9 and Cs 3 Bi 2 Br 9 have attracted significant recent interest due to their relevant photoactivity, which, however, to date has been determined only on particualte samples. 18 , 19 …”

Section: Resultsmentioning

confidence: 99%

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Optical and Structural Property Tuning in Physical Vapor Deposited Bismuth Halides Cs₃Bi₂(I_1–xBr_x)₉ (0 ≤ x ≤ 1)

et al. 2021

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Crystalline films of lead-free all-inorganic Cs 3 Bi 2 X 9 (X = Br, I) perovskites have been deposited by radio frequency (RF)-magnetron sputtering providing high-quality, single-phase films as confirmed by structural, morphological, and optical property characterization. Progressive tuning of crystal structure characteristics and optical absorbance has been achieved in mixed Br/I phases Cs 3 Bi 2 (I 1– x Br x ) 9 (0 ≤ x ≤ 1), highlighting a shift of the band gap from about 2.0 eV for Cs 3 Bi 2 I 9 to 2.64 eV for Cs 3 Bi 2 Br 9 . X-ray diffraction and Raman scattering allowed defining the range of alloyed compositions where single-phase compositions are found. Finally, preliminary photocatalytic activity tests on the degradation of methylene blue provided solid data indicating the future possible exploitation of Bi-based perovskite derivative materials as active photocatalysts.

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Section: Resultsmentioning

confidence: 99%

“…17 The same compound has been used in photocatalysis for hydrogen evolution and organic pollutant degradation. 18 , 19 …”

Section: Introductionmentioning

confidence: 99%

Optical and Structural Property Tuning in Physical Vapor Deposited Bismuth Halides Cs₃Bi₂(I_1–xBr_x)₉ (0 ≤ x ≤ 1)

et al. 2021

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“…To overcome the slow charge transport and chemical instability issues, Bresolin et al anchored a cesium/bismuth‐based (Cs 3 Bi 2 I 9 ) perovskite on g‐C 3 N 4 nanosheets. Among different lead‐free halide perovskite loads, the composite (g‐C 3 N 4 :Cs 3 Bi 2 I 9 10:0.1 wt%) showed the best stability and yield for photocatalytic degradation of organic compounds in water solution under visible light irradiation 122 …”

Section: Photocatalytic Applications Of Halide Perovskite Compositesmentioning

confidence: 99%

Halide perovskite composites for photocatalysis: A mini review

Luo¹,

Zhang²,

Yang

et al. 2021

EcoMat

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Halide perovskites have attracted increasing scientific interests for photocatalysis because of their remarkable opto‐electronic properties, such as optimal band structures, long charge carrier lifetimes, high photoluminescence quantum yields, and so on. However, pure halide perovskites generally face problems of low stability, lack of active sites, and ineffective extraction of carriers, which limit their applications in photocatalytic reactions. To improve the photocatalytic activity and stability, halide perovskites are composited with other materials. Herein in this mini review, we summarize the recent progresses on the design and development of halide perovskite composites for various photocatalytic reactions including photocatalytic CO2 reduction reaction, photocatalytic hydrogen evolution reaction, photocatalytic pollutant degradation reaction, and so on. Finally, an outlook of halide perovskite for photocatalysis is provided to point up the future challenges and the possible solutions.

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“…In addition, g-C 3 N 4 -based heterojunctions (e.g., Bi 2 O 2 CO 3 /g-C 3 N 4 ; Wang Z. Y. et al, 2016, CoTiO 3 /g-C 3 N 4 ; Ye et al, 2016, Ag 2 MoO 4 /g-C 3 N 4 ; Zhang and Ma, 2017b, C/g-C 3 N 4 ; Shen et al, 2017, Ag 6 Mo 10 O 33 /g-C 3 N 4 ; Zhang and Ma, 2017a, MoS 2 /g-C 3 N 4 ; Liu Y. Z. et al, 2018, Bi 3 O 4 Cl/g-C 3 N 4 ; Che et al, 2018, TiO 2 /g-C 3 N 4 ; Tao et al, 2019, WO 3 /g-C 3 N 4 ; Fu et al, 2019, CdS/g-C 3 N 4 ; Qiu et al, 2020, ZnO/g-C 3 N 4 ; Gao et al, 2020, Ba 5 Nb 4 O 15 /g-C 3 N 4 ; Wang et al, 2020, Co 3 (PO 4 ) 2 /g-C 3 N 4 ; Shi et al, 2020, Cs 3 Bi 2 I 9 /g-C 3 N 4 ; Bresolin et al, 2020) have been developed to enhance the photocatalytic performance. However, few studies have aimed at extending the light absorption range of g-C 3 N 4 to the near-infrared (NIR) region.…”

Section: Introductionmentioning

confidence: 99%

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

Liu

2020

Front. Chem.

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A new photocatalyst denoted as mTHPC/pCN was prepared by modifying protonated graphitic carbon nitride (pCN) by meso-tetrahydroxyphenylchlorin (mTHPC). Relevant samples were characterized via various methods including zeta potential measurements, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, N 2 adsorption-desorption, transmission electron microscopy, ultraviolet-visible-near-infrared spectroscopy, electrochemical impedance spectroscopy, photocurrent response measurements, electron spin resonance spectroscopy, and phosphorescence spectroscopy. Compared with pCN, mTHPC/pCN shows enhanced absorption in the visible and near-infrared regions and thus higher photocatalytic activity in hydrogen evolution. A possible mechanism for mTHPC/pCN is proposed.

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Cs3Bi2I9/g-C3N4 as a new binary photocatalyst for efficient visible-light photocatalytic processes

Cited by 68 publications

References 55 publications

Optical and Structural Property Tuning in Physical Vapor Deposited Bismuth Halides Cs₃Bi₂(I_1–xBr_x)₉ (0 ≤ x ≤ 1)

Optical and Structural Property Tuning in Physical Vapor Deposited Bismuth Halides Cs₃Bi₂(I_1–xBr_x)₉ (0 ≤ x ≤ 1)

Halide perovskite composites for photocatalysis: A mini review

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

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Cs3Bi2I9/g-C3N4 as a new binary photocatalyst for efficient visible-light photocatalytic processes

Cited by 68 publications

References 55 publications

Optical and Structural Property Tuning in Physical Vapor Deposited Bismuth Halides Cs3Bi2(I1–xBrx)9 (0 ≤ x ≤ 1)

Optical and Structural Property Tuning in Physical Vapor Deposited Bismuth Halides Cs3Bi2(I1–xBrx)9 (0 ≤ x ≤ 1)

Halide perovskite composites for photocatalysis: A mini review

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

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Optical and Structural Property Tuning in Physical Vapor Deposited Bismuth Halides Cs₃Bi₂(I_1–xBr_x)₉ (0 ≤ x ≤ 1)

Optical and Structural Property Tuning in Physical Vapor Deposited Bismuth Halides Cs₃Bi₂(I_1–xBr_x)₉ (0 ≤ x ≤ 1)