Planar heterojunction boosts solar-driven photocatalytic performance and stability of halide perovskite solar photocatalyst cell

Wang, Chunhua; Huang, Haowei; Weng, Bo; Verhaeghe, Davy; Keshavarz, Masoumeh; Jin, Handong; Liu, Biao; Xie, Haipeng; Ding, Yang; Gao, Yanhua; Yuan, Haifeng; Steele, Julian A.; Hofkens, Johan; Roeffaers, Maarten B. J.

doi:10.1016/j.apcatb.2021.120760

Cited by 45 publications

(36 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, the construction of MHP‐based type II heterojunctions can not only enhance the photocatalytic performance, but also improves the stability of MHPs. For example, a planar NiO x /CsPbB r3 /TiO 2 heterojunction photocatalyst presented a decent photostability (over 90 h) for the photooxidation of BA, which is ascribed to the presence of NiO x and TiO 2 protecting layers [49] . Additionally, Kamat and co‐workers reported a quasi‐type II CsPbBr 3 ‐CdS core–shell heterojunction (i.e.…”

Section: Impact Of Heterojunction Formation On Mhp‐based Photocatalystsmentioning

confidence: 99%

“…To avoid this issue, Roeffaers et al. mimicked MHP solar cells and developed a layer‐by‐layer NiO x /CsPbB r3 /TiO 2 planar heterojunction photocatalyst to boost the photocatalytic performance [49] …”

Section: Impact Of Heterojunction Formation On Mhp‐based Photocatalystsmentioning

confidence: 99%

“…For example, a planar NiO x /CsPbB r3 /TiO 2 heterojunction photocatalyst presented a decent photostability (over 90 h) for the photooxidation of BA, which is ascribed to the presence of NiO x and TiO 2 protecting layers. [49] Additionally, Kamat and co-workers reported a quasi-type II CsPbBr 3 -CdS core-shell heterojunction (i.e. with free electron exchange and holes migrating toward the MHP), whereby the deposition of a CdS shell could shield the MHP component within a toluene/ethanol mixed solvent, thereby resulting in an improved stability and photocatalytic performance compared with only pristine CsPbBr 3 .…”

Section: Mhp-based Type II Heterojunction Photocatalystsmentioning

confidence: 99%

“…To avoid this issue, Roeffaers et al mimicked MHP solar cells and developed a layer-by-layer NiO x /CsPbB r3 /TiO 2 planar heterojunction photocatalyst to boost the photocatalytic performance. [49] Interestingly, the construction of MHP-based type II heterojunctions can not only enhance the photocatalytic performance, but also improves the stability of MHPs. For example, a planar NiO x /CsPbB r3 /TiO 2 heterojunction photocatalyst presented a decent photostability (over 90 h) for the photooxidation of BA, which is ascribed to the presence of NiO x and TiO 2 protecting layers.…”

Section: Mhp-based Type II Heterojunction Photocatalystsmentioning

confidence: 99%

See 3 more Smart Citations

Metal Halide Perovskite Based Heterojunction Photocatalysts

et al. 2022

Self Cite

View full text Add to dashboard Cite

With fascinating photophysical properties and a strong potential to utilize solar energy, metal halide perovskites (MHPs) have become a prominent feature within photocatalysis research. However, the effectiveness of single MHP photocatalysts is relatively poor. The introduction of a second component to form a heterojunction represents a well‐established route to accelerate carrier migration and boost reaction rates, thus increasing the photoactivity. Recently, there have been several scientific advances related to the design of MHP‐based heterojunction photocatalysts, including Schottky, type II, and Z‐scheme heterojunctions. In this Review, we systematically discuss and critically appraise recent developments in MHP‐based heterojunction photocatalysis. In addition, the techniques for identifying the type of active heterojunctions are evaluated and we conclude by briefly outlining the ongoing challenges and future directions for promising photocatalysts based on MHP heterojunctions.

show abstract

Section: Impact Of Heterojunction Formation On Mhp‐based Photocatalystsmentioning

confidence: 99%

Section: Impact Of Heterojunction Formation On Mhp‐based Photocatalystsmentioning

confidence: 99%

Section: Mhp-based Type II Heterojunction Photocatalystsmentioning

confidence: 99%

Section: Mhp-based Type II Heterojunction Photocatalystsmentioning

confidence: 99%

See 2 more Smart Citations

Metal Halide Perovskite Based Heterojunction Photocatalysts

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent years, the halide perovskite (ABX 3 ) material has been deemed as a promising new-generation photocatalyst alternative due to its remarkable optoelectronic properties such as a large extinction coefficient and an excellent visible light-harvesting ability ( Zhao and Zhu, 2016 ; Xu et al, 2017 ; Akkerman et al, 2018 ; Huang et al, 2019 ; Huang et al, 2020 ; Wang et al, 2022 ). Importantly, the halide perovskite with a delocalized energy level exhibits a small hole effective mass ( Yuan et al, 2015 ) and high hole mobility (100 cm 2 V −1 s −1 ), which is hundreds of times higher than traditional semiconductor materials such as TiO 2 ( Wehrenfennig et al, 2014 ; Bin Yang et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Anaerobic Oxidation of Aromatic Alcohols Coupled With H2 Production Over CsPbBr3/GO-Pt Catalysts

Chen

Roeffaers

et al. 2022

Front. Chem.

Self Cite

View full text Add to dashboard Cite

Metal halide perovskites (MHPs) have been widely investigated for various photocatalytic applications. However, the dual-functional reaction system integrated selective organic oxidation with H2 production over MHPs is rarely reported. Here, we demonstrate for the first time the selective oxidation of aromatic alcohols to aldehydes integrated with hydrogen (H2) evolution over Pt-decorated CsPbBr3. Especially, the functionalization of CsPbBr3 with graphene oxide (GO) further improves the photoactivity of the perovskite catalyst. The optimal amount of CsPbBr3/GO-Pt exhibits an H2 evolution rate of 1,060 μmol g−1 h−1 along with high selectivity (>99%) for benzyl aldehyde generation (1,050 μmol g−1 h−1) under visible light (λ > 400 nm), which is about five times higher than the CsPbBr3-Pt sample. The enhanced activity has been ascribed to two effects induced by the introduction of GO: 1) GO displays a structure-directing role, decreasing the particle size of CsPbBr3 and 2) GO and Pt act as electron reservoirs, extracting the photogenerated electrons and prohibiting the recombination of the electron–hole pairs. This study opens new avenues to utilize metal halide perovskites as dual-functional photocatalysts to perform selective organic transformations and solar fuel production.

show abstract

Stabilization and Performance Enhancement Strategies for Halide Perovskite Photocatalysts

et al. 2022

View full text Add to dashboard Cite

Solar‐energy‐powered photocatalytic fuel production and chemical synthesis are widely recognized as viable technological solutions for a sustainable energy future. However, the requirement of high‐performance photocatalysts is a major bottleneck. Halide perovskites, a category of diversified semiconductor materials with suitable energy‐band‐enabled high‐light‐utilization efficiencies, exceptionally long charge‐carrier‐diffusion‐length‐facilitated charge transport, and readily tailorable compositional, structural, and morphological properties, have emerged as a new class of photocatalysts for efficient hydrogen evolution, CO2 reduction, and various organic synthesis reactions. Despite the noticeable progress, the development of high‐performance halide perovskite photocatalysts (HPPs) is still hindered by several key challenges: the strong ionic nature and high hydrolysis tendency induce instability and an unsatisfactory activity due to the need for a coactive component to realize redox processes. Herein, the recently developed advanced strategies to enhance the stability and photocatalytic activity of HPPs are comprehensively reviewed. The widely applicable stability enhancement strategies are first articulated, and the activity improvement strategies for fuel production and chemical synthesis are then explored. Finally, the challenges and future perspectives associated with the application of HPPs in efficient production of fuels and value‐added chemicals are presented, indicating the irreplaceable role of the HPPs in the field of photocatalysis.

show abstract

Planar heterojunction boosts solar-driven photocatalytic performance and stability of halide perovskite solar photocatalyst cell

Cited by 45 publications

References 57 publications

Metal Halide Perovskite Based Heterojunction Photocatalysts

Metal Halide Perovskite Based Heterojunction Photocatalysts

Photocatalytic Anaerobic Oxidation of Aromatic Alcohols Coupled With H2 Production Over CsPbBr3/GO-Pt Catalysts

Stabilization and Performance Enhancement Strategies for Halide Perovskite Photocatalysts

Contact Info

Product

Resources

About