Fabrication of 2D/0D Heterojunction Based on the Dual Controls of Micro/Nano‐Morphology and Structure Towards High‐Efficiency Photocatalytic H<sub>2</sub> Production

Dong, Hongjun; Hong, Shihuan; Zuo, Yuefei; Zhang, Xiaoxu; Lu, Zhiyuan; Han, Juan; Wang, Lei; Ni, Liang; Li, Chunmei; Wang, Yun

doi:10.1002/cctc.201901618

Cited by 15 publications

(5 citation statements)

References 55 publications

(53 reference statements)

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“…The constructed CU/CD-2 photocatalyst with a micro-/nanostructure can well solve the problems of easy agglomeration, difficult recovery, and low utilization rate of light energy in nanocatalysts. 58 In Figure 3e, the lattice fringe pitches in CU/CD-2 can be seen, where 0.330 and 0.189 nm correspond to the CD (0 0 2) 59 and Cu 2 S (5 7 3) 48 crystal planes, respectively. Besides, the interface boundary between Cu 2 S and the CD lattice can be observed.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Diethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu₂S Snowflake Microparticles for Photocatalytic Hydrogen Production

Dai

Pan

et al. 2020

ACS Appl. Nano Mater.

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Constructing a cocatalyst-free semiconductor catalyst with high catalytic efficiency has great significance to photocatalytic hydrogen (H 2 ) production. Herein, by incorporating diethylenetriamine (DETA) into inorganic materials (CdS), an organic−inorganic hybrid, CdS-DETA (CD), and a snowflake-like Cu 2 S p−n heterojunction were designed by the hydrothermal synthesis method. The photocatalytic H 2 generation rate of Cu 2 S/ CD (CU/CD) can reach 9.00 mmol•g −1 •h −1 , which is 1.25, 5.03, and 6.12 times higher than that of H 2 produced by Pt/CD, CD, and CdS nanorods (CdS NRs), respectively. Under the action of the organic molecule DETA, the photocorrosion of CdS is effectively inhibited. The Cu 2 S snowflakes and the organic− inorganic hybrid CD tight-contact interface and the p−n heterojunction improve the charge separation efficiency in the composite and enhance the photocatalytic activity. This work designed a type of photocatalyst heterojunction to provide an effective strategy for turning solar energy into a green and clean energy.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Diethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu₂S Snowflake Microparticles for Photocatalytic Hydrogen Production

Dai

Pan

et al. 2020

ACS Appl. Nano Mater.

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“…[ 23 ] Moreover, the integration of ZIS and ZIS‐O with NP has been proven by XRD. The XRD patterns of NP/ZIS and NP/ZIS‐O (Figure S4a, Supporting Information) show the diffraction peaks at 41.8° and 47.1°, which can be indexed to (400) and (240) crystal planes of Ni 12 P 5 (JCPDS: 74–1381), [ 27 ] in addition to those for ZIS or ZIS‐O, suggesting that the loading of NP cocatalyst has not altered the crystal phase structure of ZIS‐O or ZIS photocatalysts. Furthermore, high‐resolution Zn 2p, In 3d, S2p, Ni 2p, and P 2p XPS spectra (Figures S5 and S6, Supporting Information) confirm the introduction of NP in the NP/ZIS‐O and NP/ZIS heterojunctions.…”

Section: Resultsmentioning

confidence: 99%

Exploring the Polarization Photocatalysis of ZnIn₂S₄ Material toward Hydrogen Evolution by Integrating Cascade Electric Fields with Hole Transfer Vehicle

Wan

Liu

et al. 2022

Adv Funct Materials

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Sluggish charge kinetics in photocatalysts and slow hole transfer in oxidation half-reaction severely limit the photocatalytic activity of hydrogen evolution. ZnIn 2 S 4 with an asymmetrical layered structure of [S-In]-[S-In-S]-[Zn-S] unit cell is a promising material offering asymmetrical crystal polarization to overcome the limitation; however, the polarization-induced internal electric field by this material remains largely unexplored. Herein, the polarization-induced internal electric field of ZnIn 2 S 4 by engineering the polarity intensity in microscopic units is demonstrated for the first time. Specifically, ultrathin ZnIn 2 S 4 nanosheets are employed to establish a Ni 12 P 5 /ZnIn 2 S 4 -O (NP/ZIS-O) system with powerful bulk and interface cascade electric field by the oxygen doping and ohmic junction. Enabled by such a design, the photogenerated electrons can rapidly migrate to NP active sites, suppressing the photogenerated electron-hole pair recombination on ZIS-O. To further overcome the inefficient hole transfer in oxidation half-reaction, the preferential dehydrogenation of the α-CH bond in benzyl alcohol is utilized as a vehicle to facilitate hole transfer.As a result, a remarkably enhanced H 2 generation of 15.79 mmol g -1 h -1 is achieved on NP/ZIS-O, which is 8.16-fold higher than that of pristine ZnIn 2 S 4 . Meanwhile, as a value-added oxidation product, benzaldehyde can be produced at the rate of 17.63 mmol g -1 h -1 . This work presents a collaborative strategy for engineering charge behavior in photocatalysts with polarization features, and provides insights into materials design toward photocatalytic hydrogen production and organic synthesis from the angle of charge kinetics.

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“…In addition to the aforementioned methods, morphology regulation, including the crystal size, thickness, and facet regulation, has also been considered as one of the most efficient methods for regulating the photocatalytic activity of the catalysts. [ 93–99 ] Although various MOFs with different morphologies have been reported in the literature for photocatalytic hydrogen production reaction, the influence of morphology on their activity and the relationship between the two factors have rarely been studied systematically. However, in any case, it is particularly important to deeply understand it.…”

Section: Strategies For Improving Mof Photocatalytic Water‐splitting Performancementioning

confidence: 99%

Strategies for Optimizing the Photocatalytic Water‐Splitting Performance of Metal–Organic Framework‐Based Materials

Zhang

Shi

et al. 2021

Small Science

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Semiconductor photocatalytic hydrogen production technology is a pollution‐free and low‐cost technology, which is principal to alleviate the energy crisis. The metal–organic frameworks (MOFs)‐based materials have been widely used in this field because of their regular and controllable pore structure and high specific surface area. Accordingly, the recent progress of MOFs‐based materials in the production of hydrogen through water splitting is reviewed. First, the mechanism of photocatalytic hydrogen production and the existing problems are proposed and then their advantages in photocatalytic hydrogen production and various photocatalytic hydrogen production catalysts based on MOFs are summarized. Subsequently, several methods to improve their photocatalytic hydrogen production property are summarized. Finally, some views on the prospects and challenges of the use of MOFs‐based catalysts for photocatalytic hydrolysis are expounded. Although some reviews associated with MOFs for solar‐driven H2 production have been published, most of them focus on the classification of MOFs photocatalysts. This is the first comprehensive review concentrating on the strategies for optimizing the photocatalytic activity of MOFs‐based materials for H2 production. It is believed that the suggestions provided here can help to study MOFs‐based photocatalytic reactions and to further promote the development of this research direction in the future.

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Fabrication of 2D/0D Heterojunction Based on the Dual Controls of Micro/Nano‐Morphology and Structure Towards High‐Efficiency Photocatalytic H₂ Production

Cited by 15 publications

References 55 publications

Diethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu₂S Snowflake Microparticles for Photocatalytic Hydrogen Production

Diethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu₂S Snowflake Microparticles for Photocatalytic Hydrogen Production

Exploring the Polarization Photocatalysis of ZnIn₂S₄ Material toward Hydrogen Evolution by Integrating Cascade Electric Fields with Hole Transfer Vehicle

Strategies for Optimizing the Photocatalytic Water‐Splitting Performance of Metal–Organic Framework‐Based Materials

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Fabrication of 2D/0D Heterojunction Based on the Dual Controls of Micro/Nano‐Morphology and Structure Towards High‐Efficiency Photocatalytic H2 Production

Cited by 15 publications

References 55 publications

Diethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu2S Snowflake Microparticles for Photocatalytic Hydrogen Production

Diethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu2S Snowflake Microparticles for Photocatalytic Hydrogen Production

Exploring the Polarization Photocatalysis of ZnIn2S4 Material toward Hydrogen Evolution by Integrating Cascade Electric Fields with Hole Transfer Vehicle

Strategies for Optimizing the Photocatalytic Water‐Splitting Performance of Metal–Organic Framework‐Based Materials

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Fabrication of 2D/0D Heterojunction Based on the Dual Controls of Micro/Nano‐Morphology and Structure Towards High‐Efficiency Photocatalytic H₂ Production

Diethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu₂S Snowflake Microparticles for Photocatalytic Hydrogen Production

Diethylenetriamine-Functionalized CdS Nanoparticles Decorated on Cu₂S Snowflake Microparticles for Photocatalytic Hydrogen Production

Exploring the Polarization Photocatalysis of ZnIn₂S₄ Material toward Hydrogen Evolution by Integrating Cascade Electric Fields with Hole Transfer Vehicle