Black phosphorus: an efficient co-catalyst for charge separation and enhanced photocatalytic hydrogen evolution

Wu, Jiahao; Huang, Shaolong; Jin, Zhengyuan; Chen, Jiaqi; Hu, Liang; Long, Yaojia; Lu, Jianguo; Ruan, Shuangchen; Zeng, Yu‐Jia

doi:10.1007/s10853-018-2830-2

Cited by 44 publications

(27 citation statements)

References 42 publications

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“…Despite these challenges, phosphorene with few‐layer structure can sustain good crystalline quality after exfoliation under laboratory condition. The bandgap range of phosphorene can span from visible to infrared spectral range, which is from 0.3 eV (bulk) to 2.0 eV (monolayer) . In the main, considering the inherent excellent properties of BP, many more breakthroughs in its application for photocatalysis are expected in the future.…”

Section: Photocatalysismentioning

confidence: 99%

Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges

et al. 2020

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Water shortage and the energy crisis are two major global challenges in this century. The solution for water crisis should be based on a sustainable energy source. Solar‐inspired water purification is an efficient and green technology for tackling the water challenge using abundant and clean solar energy through photothermal evaporation‐induced water production, photoinduced antimicrobial treatment, and photocatalytic degradation of organic contaminants. 2D nanomaterials draw significant attention for their use these three water‐purification methods because of their large surface area, broadband and strong absorption in the solar spectral range, and efficient photothermal and photocatalytic transformation. Herein, the recent development of 2D nanomaterials applied in photothermal evaporation, photoinduced antimicrobial treatment, and photocatalytic capability is comprehensively overviewed. Various strategies in enhancing the light‐absorption and light‐conversion efficiency for different 2D nanomaterials are presented. The challenges and perspectives of these 2D nanomaterials are further discussed for practical water purification. This Review highlights these green energy–driven water‐purification methods based on emerging 2D materials.

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Section: Photocatalysismentioning

confidence: 99%

Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges

et al. 2020

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“…[24] It was also believed that, by virtue of its tunable bandgap (0.3-2.5 eV) and large surface area of 2D characteristics, BP is excellent for generating hydrogen from water. [25][26][27][28] Several attempts have been made to confirm this. [29][30][31] However, due to the serious carrier recombination in BP, its poor stability (due to self-corrosion), and difficulty in recycling, the performance of BP nanostructures needed to be further improved.…”

Section: Introductionmentioning

confidence: 95%

“…To overcome these shortcomings, strategies such as using black phosphorus quantum dots, doping with Au, C, N, mixing with CdS, CN, La 2 Ti 2 O 7 as cocatalysts to get suitable nanostructures have been recently developed. [14,15,26] The studies demonstrated that the formation of nanocomposites can achieve high photocatalytic activity by reducing the charge recombination rate and increasing the electron mobility.…”

Section: Introductionmentioning

confidence: 99%

Water Splitting Performance Enhancement of the TiO₂ Nanorod Array Electrode with Ultrathin Black Phosphorus Nanosheets

Wang

Jin

et al. 2019

ChemElectroChem

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Metal free two‐dimensional (2D) semiconductor nanomaterial black phosphorus (BP) is a promising photocatalyst for solar H2 evolution. Here, ultrathin BP nanosheets were prepared through organic salt sodium citrate assisted exfoliation of bulk BP. Further, an efficient photoelectrode for photoelectrochemical water splitting was developed based on TiO2 nanorod arrays, coated with ultrathin black phosphorus nanosheets. Compared to the pure TiO2 nanorod arrays, this structure exhibits reduced photoluminescent emission, longer carrier lifetime, and a strong photocurrent density enhancement of about 140 %. The high photoelectrochemical performance indicated the formed 2D‐1D BP/TiO2 heterostructure facilitates the charge separation and transfer. The interfacial interactions between black phosphorus and TiO2 were thoroughly investigated with XPS and FTIR spectroscopy.

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“…Notably, the direct Z‐Scheme system can effectively restrain the backward reactions, high fabrication cost, and the light‐shielding effect caused by the electron mediators. Up to now, some BP‐based direct Z‐Scheme systems (BP/BiVO 4 , BP/Bi 2 WO 6 , BP/TiO 2 , and BP/RP) have been developed for photocatalytic water splitting.…”

Section: Diverse Bp‐based Semiconductor Heterojunctionsmentioning

confidence: 99%

Black Phosphorus‐Based Semiconductor Heterojunctions for Photocatalytic Water Splitting

Liu

Huang

Liu

et al. 2020

Chemistry A European J

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Solar‐to‐hydrogen (H2) conversion has been regarded as a sustainable and renewable technique to address aggravated environmental pollution and global energy crisis. The most critical aspect in this technology is to develop highly efficient and stable photocatalysts, especially metal‐free photocatalysts. Recently, black phosphorus (BP), as a rising star 2D nanomaterial, has captured enormous attention in photocatalytic water splitting owing to its widespread optical absorption, adjustable direct band gap, and superior carrier migration characteristics. However, the rapid charge recombination of pristine BP has seriously limited its practical application as photocatalyst. The construction of BP‐based semiconductor heterojunctions has been proven to be an effective strategy for enhancing the separation of photogenerated carriers. This Minireview attempts to summarize the recent progress in BP‐based semiconductor heterojunctions for photocatalytic water splitting, including type‐I and type‐II heterojunctions, Z‐Scheme systems, and multicomponent heterojunctions. Finally, a brief summary and perspective on the challenges and future directions in this field are also provided.

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Black phosphorus: an efficient co-catalyst for charge separation and enhanced photocatalytic hydrogen evolution

Cited by 44 publications

References 42 publications

Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges

Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges

Water Splitting Performance Enhancement of the TiO₂ Nanorod Array Electrode with Ultrathin Black Phosphorus Nanosheets

Black Phosphorus‐Based Semiconductor Heterojunctions for Photocatalytic Water Splitting

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Black phosphorus: an efficient co-catalyst for charge separation and enhanced photocatalytic hydrogen evolution

Cited by 44 publications

References 42 publications

Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges

Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges

Water Splitting Performance Enhancement of the TiO2 Nanorod Array Electrode with Ultrathin Black Phosphorus Nanosheets

Black Phosphorus‐Based Semiconductor Heterojunctions for Photocatalytic Water Splitting

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Water Splitting Performance Enhancement of the TiO₂ Nanorod Array Electrode with Ultrathin Black Phosphorus Nanosheets