Perovskite Paradigm Shift: A Green Revolution with Lead-Free Alternatives in Photocatalytic CO₂ Reduction

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(4), P. 1932 - 1975

Published: April 4, 2024

Carbon dioxide (CO2), an archetypal greenhouse gas, can be transformed into valuable fuels through photocatalysis, presenting auspicious avenue for combating global climate change and energy crisis. While halide perovskites have sparked substantial research interest, concerns over lead toxicity spurred exploration of their lead-free counterparts CO2 photoreduction. This comprehensive Review navigates the fundamentals reduction, delving basic principles, mechanisms, relevant operando techniques. It then introduces diverse structures (LFHPs), synthesis methodologies, intrinsic properties that render them suitable Subsequently, unfolds application modification strategies light-driven conversion, highlighting breakthroughs shedding light on potential mechanisms. Finally, current challenges to tailor LFHPs robust photocatalytic reduction are critically discussed, offering insights future in this realm. aims illuminate path toward sustainable bridging knowledge gaps inspiring innovations a greener carbon-neutral tomorrow.

Language: Английский

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In Situ Integration of Metallic Catalytic Sites and Photosensitive Centers within Covalent Organic Frameworks for the Enhanced Photocatalytic Reduction of CO₂

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Covalent organic frameworks (COFs) are a promising platform for heterogeneous photocatalysis due to their stability and design diversity, but potential is often restricted by unmanageable targeted excitation charge transfer. Herein, bimetallic COF integrating photosensitizers catalytic sites designed facilitate locally ultrafast transfer, aiming improve the photocatalytic reduction of CO

Language: Английский

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A Versatile Self‐Templating Approach for Constructing Ternary Halide Perovskite Heterojunctions to Achieve Concurrent Enhancement in Photocatalytic CO₂ Reduction Activity and Stability

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract Metal halide perovskite (MHP)‐based photocatalysts encounter significant stability challenges in water‐containing systems, posing a major obstacle to their application artificial photosynthesis. Herein, an innovative and universal strategy is present create MHP‐based ternary heterojunctions based on self‐templating method. A series of composite catalysts featuring sandwich hollow structures are constructed, with MHPs such as CsPbBr 3 , Cs Bi 2 I 9 Sb Br AgBiBr 6 serving the intermediate layers. The unique structure effectively shields from direct water contact, allowing exhibit exceptional photocatalytic environments for durations exceeding 200 h. Furthermore, design ensures complete contact between reaction substrates both oxidation reduction functional areas. Compared single materials, heterojunction stronger capability improved charge separation efficiency, leading substantial enhancement CO performance. Notably, layer achieves electron consumption rate up 1824 µmol g −1 h reduction, which far superior other reported under similar conditions. This study provides potent simultaneously enhancing activity photocatalysts, paving way potential applications

Language: Английский

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Product Control in Visible-Light-Driven CO₂ Reduction by Switching Metal Centers of Binuclear Catalysts

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 2522 - 2530

Published: Jan. 27, 2025

Language: Английский

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Progress of photocatalytic CO2 reduction toward multi-carbon products

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Language: Английский

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The Sb–N charge transfer bridge over Cs3Sb2Br9/Sb–C3N4 Z-scheme heterojunction for boosting photocatalytic CO2 reduction

Science China Materials, Journal Year: 2024, Volume and Issue: 67(10), P. 3176 - 3184

Published: Aug. 8, 2024

Language: Английский

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Passivating Defects and Constructing Catalytic Sites on CsPbBr₃ with ZnBr₂ for Photocatalytic CO₂ Reduction

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(28), P. 12703 - 12707

Published: July 1, 2024

In recent years, halide perovskites have attracted considerable attention for photocatalytic CO2 reduction. However, the presence of surface defects and lack specific catalytic sites reduction lead to low performance. this study, we demonstrate a facile method that post-treats CsPbBr3 with ZnBr2 Our experimental characterization results show has dual role: Br– ions in passivate Br vacancies (VBr) on surface, while Zn2+ cations act as The ZnBr2–CsPbBr3 achieves CO evolution rate 57 μmol g–1 h–1, which is nearly three times higher than pristine CsPbBr3. enhanced performance over mainly due decreased VBr lower reaction energy barrier This work presents an effective simultaneously introduce sites, providing useful guidance regulation perovskite photoelectric properties design efficient photocatalysts.

Language: Английский

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Direct Partial Transformation of 2D Antimony Oxybromide to Halide Perovskite Heterostructure for Efficient CO₂ Photoreduction

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

The photocatalytic activity of lead-free perovskite heterostructures currently suffers from low efficiency due to the lack active sites and inadequate photogenerated carrier separation, latter which is hindered by slow charge transfer at heterostructure interfaces. Herein, a facile strategy reported for construction halide-perovskite-based with swift interfacial transfer, achieved through direct partial conversion 2D antimony oxybromide Sb4O5Br2 generate Cs3Sb2Br9/Sb4O5Br2 heterostructure. Compared traditional electrostatic self-assembly method, this approach endows tightly interconnected interface in situ conversion, significantly accelerating thereby enhancing separation carriers. cobalt-doped demonstrates record-high electron consumption rate 840 µmol g-1 h-1 CO2 reduction CO coupled H2O oxidation O2, over 74- 16-fold higher than that individual Cs3Sb2Br9, respectively. This work provides an effective promoting photocatalysts improve performance artificial photosynthesis.

Language: Английский

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In‐Situ Constructing Eosin Y Sensitized Cs₂PtSnCl₆ Perovskites for Enhanced Photocatalytic Hydrogen Evolution

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Abstract Vacancy‐ordered Cs 2 SnX 6 perovskites, with low‐toxicity and high stability, have emerged as promising photocatalysts for hydrogen evolution reaction (HER). However, most derivatives low catalytic activity mainly due to their insufficient light utilization efficiency. Herein, a simple in situ method is introduced sensitize PtSnCl Eosin Y (EY), forming EY‐Cs HER aqueous solution. Various characterizations indicate that the EY immobilized onto during synthesis process. The displayed extended absorption range efficient charge transfer from . resulting material exhibits rate of 17.6 mmol g −1 h , ≈1760 folds than pristine This work demonstrates an effective construct dye‐sensitized perovskites highlights importance interaction between dye perovskite. It provides useful guidance design new perovskite‐based it will advance development solar energy conversion into renewable fuels.

Language: Английский

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Sunlight-driven simultaneous CO2 reduction and water oxidation using indium-organic framework heterostructures

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 16, 2025

Abstract Overall artificial photosynthesis, as a promising approach for sunlight-driven CO 2 recycling, requires photocatalysts with efficient light adsorption and separate active sites coupling H O oxidation. Here we show In-based metal–organic framework (MOF) heterostructure, i.e., In-porphyrin (In-TCPP) nanosheets enveloping an In-NH -MIL-68 (M68N) core, via facile one-pot synthesis that utilises competitive nucleation growth of two organic linkers In nodes. The coherent interfaces the core@shell MOFs assure structural stability which will function heterojunctions to facilitate transfer photogenerated charge overall photosynthesis. In-TCPP shell in heterostructure improves capabilities visible absorption enhance photocatalytic reduction. Simultaneously, In-O M68N core efficiently catalyze oxidation, achieving high yields HCOOH (397.5 μmol g −1 h ) (321.2 under focused sunlight irradiation. superior performance this coupled its straightforward synthesis, shows great potential mitigating carbon emissions producing valuable chemicals using solar energy.

Language: Английский

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