Antisolvent solvothermal synthesis of MAPbBr3 nanocrystals for efficient solar photodecomposition of methyl orange

Zhou, Shuang; Wang, Qiying; Xu, Zhendong; Xu, Shenke; Yang, Peiyi; Deng, Hao; Li, Bobo; Dong, Yifan; Han, Peigang; Su, Yaorong

doi:10.1016/j.jcis.2021.03.073

Cited by 5 publications

(2 citation statements)

References 52 publications

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“…Halide perovskite nanomaterials have shown promising optoelectronic applications in photovoltaics, light-emitting diodes, photodetectors, and lasers due to their exceptional optical and semiconducting properties, such as high photoluminescence quantum yield, large carrier mobility, narrow full width at half-maximum (FWHM), high light absorption coefficient, and tunable band gap. − Very recently, perovskite-based compounds have shown great potential in photocatalytic applications. − Various halide perovskites such as CsPbBr 3 , CsPbI 3 , methylammonium lead iodide (MAPbI 3 ), formamidinium lead bromide (FAPbBr 3 ), Cs 2 AgBiBr 6 , etc. have been investigated as promising photocatalysts in hydrogen generation, − dye photodegradation, − photocatalytic CO 2 reduction, − and organic synthesis. − By employing MAPbI 3 and visible light, Nam and co-workers reported the photocatalytic hydrogen evolution from hydroiodic acid . Xu et al investigated the CO 2 photocatalytic reduction toward CO formation using CsPbBr 3 as the photocatalyst .…”

Section: Introductionmentioning

confidence: 99%

NaBr-Assisted Aqueous Synthesis of Perovskite-Embedded PbBr(OH) Hierarchical Nanostructures for Dye Photodegradation

Dong

Tapa

et al. 2023

ACS Appl. Nano Mater.

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Halide perovskite nanomaterials have demonstrated promising potential in various fields, including photocatalysis for environmental remediation. However, perovskites' poor stability toward water makes it difficult to use them for the photocatalytic degradation of organic pollutants in wastewater. Herein, we develop a facile and scalable NaBr-assisted room-temperature aqueous phase procedure for the synthesis of all-inorganic CsPbBr 3 -embedded PbBr(OH) with controlled hierarchical structures, excellent ambient stability, and strong activity for photocatalytic degradation of dyes (e.g., methyl orange and methylene blue) in simulated organic wastewater. It is exceptional that the added NaBr can complex PbBr 2 to form a transparent aqueous solution, enabling the subsequent reaction with the aqueous Cs 2 CO 3 precursor to produce CsPbBr 3 -embedded PbBr(OH) microflowers and microspheres. The photocatalysis shows that the CsPbBr 3 -embedded PbBr(OH) photocatalysts exhibit excellent photocatalytic activity for dye degradation under visible-light irradiation, which is significantly stronger than that of commercial TiO 2 and some other perovskite-based materials produced using a previously reported method. The excellent stability of the CsPbBr 3 -embedded PbBr(OH) as a photocatalyst is verified by nine consecutive photocatalytic cycles without a noticeable drop in photodegradation efficiency. This work will shed light on the green synthesis of ultra-stable perovskite-based nanomaterials for photocatalytic degradation of organic pollutants as well as other promising water treatment technology prospects.

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Section: Introductionmentioning

confidence: 99%

NaBr-Assisted Aqueous Synthesis of Perovskite-Embedded PbBr(OH) Hierarchical Nanostructures for Dye Photodegradation

Dong

Tapa

et al. 2023

ACS Appl. Nano Mater.

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“…For these reasons, many horizontal photodetectors have been studied for methylammonium lead iodide (MAPbI 3 ) [13,14], methylammonium lead chloride (MAPbCl 3 ) [15], or methylammonium lead bromide (MAPbBr 3 ) [16][17][18][19][20][21][22][23]. For MAPbBr 3 , horizontal photodetectors have many advantages like room temperature crystallization and high stability and detection in the visible range [20][21][22][23][24][25]. They have been studied with transistor designs [22], microwires [26], single crystals [18,27], and thin films with face-to-face [20,28] or interdigitated electrodes [23].…”

Section: Introductionmentioning

confidence: 99%

High-Responsivity Planar Photodetector Based on Methylammonium Lead Bromide Perovskite Thin Film

Mai,

Houel,

Dreveton

et al. 2023

Photonics

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We have fabricated planar interdigitated photodetectors exhibiting high responsivity. These detectors are based on thin layers of methylammonium lead bromide (MAPbBr3) at 90 nm thickness. MAPbBr3 thin films were first characterized on glass (borosilicate) substrates using absorption and photoluminescence measurements showing a high absorption edge at 521 nm and strong emission at 530 nm, as expected. MAPbBr3 thin films were then deposited on top of interdigitated electrodes, hence producing planar photodetectors with responsivity up to 0.4 A/W. Such higher performances were attributed to the interdigitated design, low crack density (0.05 µm−2), and lower resistivity (20 MΩ.cm) compared to MAPbBr3 single crystal. Therefore, this work highlights MAPbBr3 thin films as very promising for photodetection applications.

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Integrating Mixed Halide Perovskite Photocatalytic HI Splitting and Electrocatalysis into a Loop for Efficient and Robust Pure Water Splitting

et al. 2023

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Developing a hydrogen economy to replace traditional fossil fuels is essential for sustainable human development. As two promising H2 production strategies, photocatalytic and electrocatalytic water splitting with large reaction energy barriers still face the great challenges of poor solar‐to‐hydrogen efficiency and large electrochemical overpotentials, respectively. Herein, a new strategy is proposed to disassemble the difficult pure water splitting into two parts that are easy to implement, namely mixed halide perovskite photocatalytic HI splitting for H2 production, and simultaneous electrocatalytic I3− reduction and O2 production. The efficient charge separation, abundant H2 production active sites, and a small HI splitting energy barrier contribute to the superior photocatalytic H2 production activity of MoSe2/MAPbBr3−xIx (CH3NH3+ = MA). Subsequent electrocatalytic I3− reduction and O2 production reactions only need a small voltage of 0.92 V to drive, which is far lower than that of the electrocatalytic pure water splitting (>1.23 V). The molar ratio of H2 (6.99 mmol g−1) to O2 (3.09 mmol g−1) produced during the first photocatalytic and electrocatalytic cycle is close to 2:1, and the continuous circulation of I3−/I− between the photocatalytic and electrocatalytic systems can achieve efficient and robust pure water splitting.

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Antisolvent solvothermal synthesis of MAPbBr3 nanocrystals for efficient solar photodecomposition of methyl orange

Cited by 5 publications

References 52 publications

NaBr-Assisted Aqueous Synthesis of Perovskite-Embedded PbBr(OH) Hierarchical Nanostructures for Dye Photodegradation

NaBr-Assisted Aqueous Synthesis of Perovskite-Embedded PbBr(OH) Hierarchical Nanostructures for Dye Photodegradation

High-Responsivity Planar Photodetector Based on Methylammonium Lead Bromide Perovskite Thin Film

Integrating Mixed Halide Perovskite Photocatalytic HI Splitting and Electrocatalysis into a Loop for Efficient and Robust Pure Water Splitting

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