Integrating Hybrid Perovskite Nanocrystals into Metal–Organic Framework as Efficient S-Scheme Heterojunction Photocatalyst for Synergistically Boosting Controlled Radical Photopolymerization under 980 nm NIR Light

Xia, Zhinan; Liu, Bei; Xiao, Yang; Hu, Wanchao; Deng, Mingxiao; Lü, Changli

doi:10.1021/acsami.3c13496

Cited by 1 publication

(1 citation statement)

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“…In particular, the role of halide perovskite materials in photocatalytic H 2 generation from halogen acid splitting has drawn the attention of the research groups worldwide. After the first discovery of HI splitting using MAPbI 3 perovskite by Nam et al in 2016, several reports have been published for the same. − In spite of this progress, there are some tedious hurdles like high moisture sensitivity, harsh acidic operational conditions, critical pH sensitivity, and poor gas evolution rates, which make the journey of perovskite photocatalysts a little onerous as a catalyst for commercial use.…”

Section: Introductionmentioning

confidence: 99%

Composites of Reduced Graphene Oxide and MAPbI₃ Crystals for Photocatalytic Hydrogen Generation

Pal,

Bhowmik,

et al. 2024

ACS Appl. Nano Mater.

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Lead halide perovskite has emerged as an alternate material for photocatalytic hydrogen (H 2 ) evolution owing to its excellent optoelectronic properties. However, designing an efficient and stable perovskite photocatalyst system still remains a challenging task. Pristine MAPbI 3 exhibited a lesser H 2 evolution activity due to the lack of reactive sites and its faster degradation. Herein, reduced graphene oxides (RGOs) with varied chemical reduction were integrated with MAPbI 3 microcrystals by in situ coupling to construct a robust and effective heterostructure resulting into a strong interconnection between MAPbI 3 and RGO. Careful selection of cocatalysts with appropriate bandgaps and proper alignment of band positions are the key steps for successful photocatalytic H 2 generation. This work highlights that facile and easy photogenerated charge separation and migration can be achieved for MAPbI 3 /RGO heterostructures where chemically modified RGOs having favorable bandgap and band positions were incorporated with MAPbI 3 via unusual improved in situ crystallization resulting into remarkable mmol scale photocatalytic H 2 evolution in aqueous HI medium under white light LED illumination. Under optimal reaction conditions, the H 2 evolution rate can reach 4493 μmol g −1 h −1 .

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Section: Introductionmentioning

confidence: 99%

Composites of Reduced Graphene Oxide and MAPbI₃ Crystals for Photocatalytic Hydrogen Generation

Pal,

Bhowmik,

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

Integrating Hybrid Perovskite Nanocrystals into Metal–Organic Framework as Efficient S-Scheme Heterojunction Photocatalyst for Synergistically Boosting Controlled Radical Photopolymerization under 980 nm NIR Light

Cited by 1 publication

References 69 publications

Composites of Reduced Graphene Oxide and MAPbI₃ Crystals for Photocatalytic Hydrogen Generation

Composites of Reduced Graphene Oxide and MAPbI₃ Crystals for Photocatalytic Hydrogen Generation

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Integrating Hybrid Perovskite Nanocrystals into Metal–Organic Framework as Efficient S-Scheme Heterojunction Photocatalyst for Synergistically Boosting Controlled Radical Photopolymerization under 980 nm NIR Light

Cited by 1 publication

References 69 publications

Composites of Reduced Graphene Oxide and MAPbI3 Crystals for Photocatalytic Hydrogen Generation

Composites of Reduced Graphene Oxide and MAPbI3 Crystals for Photocatalytic Hydrogen Generation

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Composites of Reduced Graphene Oxide and MAPbI₃ Crystals for Photocatalytic Hydrogen Generation

Composites of Reduced Graphene Oxide and MAPbI₃ Crystals for Photocatalytic Hydrogen Generation