Dimension‐Matched Zinc Phthalocyanine/BiVO<sub>4</sub> Ultrathin Nanocomposites for CO<sub>2</sub> Reduction as Efficient Wide‐Visible‐Light‐Driven Photocatalysts via a Cascade Charge Transfer

Bian, Ji; Feng, Jiannan; Zhang, Ziqing; Li, Zhijun; Zhang, Yuhang; Liu, Yadi; Ali, Sharafat; Qu, Yang; Bai, Linlu; Xie, Jijia; Tang, Dongyan; Li, Xin; Bai, Fu‐Quan; Tang, Junwang; Jing, Liqiang

doi:10.1002/anie.201905274

Cited by 194 publications

(71 citation statements)

References 34 publications

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“…In contrast, under the same illumination conditions, BiOCl has the lowest emission intensity owning to the low intrinsic photoresponse of BiOCl . Furthermore, it's carefully observed that the PL emission intensity of the as‐prepared samples were declined with increasing the content of BiOCl, suggesting that the photoinduced electrons transformation direction is from CN to BiOCl …”

Section: Resultssupporting

confidence: 82%

n–p BiOCl@g‐C₃N₄ Heterostructure with Rich‐oxygen Vacancies for Photodegradation of Carbamazepine

Hou

Deng

et al. 2020

ChemistrySelect

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BiOCl/g‐C3N4 (BOC/CN) n‐p heterojunction with rich oxygen vacancies (OVs) was successfully prepared by microwave‐assistant strategy. Multiple characterizations revealed that BOC/CN‐10 exhibited excellent photodegradation performance and degraded 49 % carbamazepine (50 mL, 2.5 mg/L) in 240 minutes, which was eight and three times higher than BiOCl and g‐C3N4, respectively. ESR and O2‐TPD were combined to determine the presence of OVs in BOC/CN. Moreover, the photocatalytic mechanism demonstrates that the OVs of BiOCl and novel p‐n heterostructure not only extend the light absorption but also facilitate the spatial separation of photoinduced carries, and thus BOC/CN‐10 possesses outstanding photocatalytic performance. This work inspired how to improve photocatalytic activity by defect engineering and p‐n heterostructure strategy for Bismuth‐based photocatalyst.

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Section: Resultssupporting

confidence: 82%

n–p BiOCl@g‐C₃N₄ Heterostructure with Rich‐oxygen Vacancies for Photodegradation of Carbamazepine

Hou

Deng

et al. 2020

ChemistrySelect

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“…[ 27–30 ] BiVO 4 has exhibited excellent photocatalytic activities by its unique intrinsic properties, such as in photocatalytic CO 2 reduction. [ 31–33 ] Furthermore, Majima and co‐workers has certificated the feasibility of BiVO 4 in H 2 ‐evolution through constructing 2D heterostructure with BP. [ 34 ] However, the studies of BiVO 4 ‐based materials in H 2 ‐evolution are extremely rare, [ 35,36 ] which is indeed worth of more extensive research.…”

Section: Introductionmentioning

confidence: 99%

Spatially Separating Redox Centers on Z‐Scheme ZnIn₂S₄/BiVO₄ Hierarchical Heterostructure for Highly Efficient Photocatalytic Hydrogen Evolution

Chen

Zheng

et al. 2020

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Photocatalysis technology using solar energy for hydrogen (H2) production still faces great challenges to design and synthesize highly efficient photocatalysts, which should realize the precise regulation of reactive sites, rapid migration of photoinduced carriers and strong visible light harvest. Here, a facile hierarchical Z‐scheme system with ZnIn2S4/BiVO4 heterojunction is proposed, which can precisely regulate redox centers at the ZnIn2S4/BiVO4 hetero‐interface by accelerating the separation and migration of photoinduced charges, and then enhance the oxidation and reduction ability of holes and electrons, respectively. Therefore, the ZnIn2S4/BiVO4 heterojunction exhibits excellent photocatalytic performance with a much higher H2‐evolution rate of 5.944 mmol g−1 h−1, which is about five times higher than that of pure ZnIn2S4. Moreover, this heterojunction shows good stability and recycle ability, providing a promising photocatalyst for efficient H2 production and a new strategy for the manufacture of remarkable photocatalytic materials.

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“…Researchers have made early attempts to fabricate a PEC‐PV solar water splitting device, for example, a BiVO 4 –silicon cell, WO 3 /Fe 2 O 3 ‐dye sensitized solar cell, and more recently, a nanocone BiVO 4 ‐perovskite tandem cell . For the PEC part, BiVO 4 has been intensively studied as a photoanode with a suitable band gap to harvest a substantial amount of sunlight as well as a suitable band edge position to straddle the redox potentials of the oxygen evolution reactions . The relatively small onset potential for oxygen evolution reaction (OER) on the BiVO 4 photoanode would yield a sufficiently high current density at a suitable bias that can match with the maximum power point of a photovoltaic cell to design efficient tandem devices.…”

Section: Introductionmentioning

confidence: 99%

Freeing the Polarons to Facilitate Charge Transport in BiVO₄ from Oxygen Vacancies with an Oxidative 2D Precursor

Qiu

Xiao

et al. 2019

Angew Chem Int Ed

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The BiVO4 photoelectrochemical (PEC) electrode in tandem with a photovoltaic (PV) cell has shown great potential to become a compact and cost‐efficient device for solar hydrogen generation. However, the PEC part is still facing problems such as the poor charge transport efficiency owing to the drag of oxygen vacancy bound polarons. In the present work, to effectively suppress oxygen vacancy formation, a new route has been developed to synthesize BiVO4 photoanodes by using a highly oxidative two‐dimensional (2D) precursor, bismuth oxyiodate (BiOIO3), as an internal oxidant. With the reduced defects, namely the oxygen vacancies, the bound polarons were released, enabling a fast charge transport inside BiVO4 and doubling the performance in tandem devices based on the oxygen vacancy eliminated BiVO4. This work is a new avenue for elaborately designing the precursor and breaking the limitation of charge transport for highly efficient PEC‐PV solar fuel devices.

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Dimension‐Matched Zinc Phthalocyanine/BiVO₄ Ultrathin Nanocomposites for CO₂ Reduction as Efficient Wide‐Visible‐Light‐Driven Photocatalysts via a Cascade Charge Transfer

Cited by 194 publications

References 34 publications

n–p BiOCl@g‐C₃N₄ Heterostructure with Rich‐oxygen Vacancies for Photodegradation of Carbamazepine

n–p BiOCl@g‐C₃N₄ Heterostructure with Rich‐oxygen Vacancies for Photodegradation of Carbamazepine

Spatially Separating Redox Centers on Z‐Scheme ZnIn₂S₄/BiVO₄ Hierarchical Heterostructure for Highly Efficient Photocatalytic Hydrogen Evolution

Freeing the Polarons to Facilitate Charge Transport in BiVO₄ from Oxygen Vacancies with an Oxidative 2D Precursor

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Dimension‐Matched Zinc Phthalocyanine/BiVO4 Ultrathin Nanocomposites for CO2 Reduction as Efficient Wide‐Visible‐Light‐Driven Photocatalysts via a Cascade Charge Transfer

Cited by 194 publications

References 34 publications

n–p BiOCl@g‐C3N4 Heterostructure with Rich‐oxygen Vacancies for Photodegradation of Carbamazepine

n–p BiOCl@g‐C3N4 Heterostructure with Rich‐oxygen Vacancies for Photodegradation of Carbamazepine

Spatially Separating Redox Centers on Z‐Scheme ZnIn2S4/BiVO4 Hierarchical Heterostructure for Highly Efficient Photocatalytic Hydrogen Evolution

Freeing the Polarons to Facilitate Charge Transport in BiVO4 from Oxygen Vacancies with an Oxidative 2D Precursor

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Product

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Dimension‐Matched Zinc Phthalocyanine/BiVO₄ Ultrathin Nanocomposites for CO₂ Reduction as Efficient Wide‐Visible‐Light‐Driven Photocatalysts via a Cascade Charge Transfer

n–p BiOCl@g‐C₃N₄ Heterostructure with Rich‐oxygen Vacancies for Photodegradation of Carbamazepine

n–p BiOCl@g‐C₃N₄ Heterostructure with Rich‐oxygen Vacancies for Photodegradation of Carbamazepine

Spatially Separating Redox Centers on Z‐Scheme ZnIn₂S₄/BiVO₄ Hierarchical Heterostructure for Highly Efficient Photocatalytic Hydrogen Evolution

Freeing the Polarons to Facilitate Charge Transport in BiVO₄ from Oxygen Vacancies with an Oxidative 2D Precursor