MOF based sheet-assembled flowers CdS-MoS2 composite for enhanced visible-light hydrogen production

Cao, Xianglei; Zhang, Liugen; Chen, Tingxiang; Feng, Chao; Liu, Zechang; Wang, Wei; Wang, Jide

doi:10.1016/j.apsusc.2020.145355

Cited by 45 publications

(15 citation statements)

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“…The rise in global energy consumption, drastic depletion of fossil fuel resources, and the associated negative environmental issues have triggered the urgent demand for the development of a variety of sustainable and clean energy conversion technologies. 1–4 The production of hydrogen via solar-driven water splitting has been considered as an attractive approach for solar energy conversion. 5–7 The overall water splitting (H 2 O = H 2 + 1/2O 2 ) consists of two half-reactions: hydrogen evolution reaction (HER) and oxygen evolution reaction (OER).…”

Section: Introductionmentioning

confidence: 99%

Precise regulation of defect concentration in MOF and its influence on photocatalytic overall water splitting

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Precise regulation of defect concentration in MOF and its influence on photocatalytic overall water splitting

et al. 2022

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“…[159] Hierarchical structures of MOFs have been prepared by various solutionbased synthetic routes, and the conversion of hierarchical MOFs is more advantageous for acquiring a high surface area for PC and PEC reactions than for the direct synthesis. Representative hybrid photocatalysts and photoanodes prepared from hierarchical MOFs are CdS/MoS 2 nanoflowers, [160] CuS/ZnS porous microspheres, [161] Co 9 S 8 @ZnIn 2 S 4 nanocages, [162] MoS 2 / TiO 2 , [163]…”

Section: Morphology Of Mof-derived Hybridsmentioning

confidence: 99%

“…For instance, cubic pyrite nickel disulfide ((NiS 2 ) MOF ) hollow microspheres (HMS) were prepared from spheres consisting of Ni-BTC (benzene-1,3,5-tricarboxylic acid) via microwave treatment in a thioacetmide ethylene glycol solution (Figure 20a). [265] Flower-like nanostructures consisting of Cd-MOFs have also been converted into a similar morphology of (CdS) MOF nanostructures via solvothermal reaction using Na 2 S•9H 2 O [160] as the sulfurization source (Figure 20b), while solution-based sulfidation was used to convert (Co 3 O 4 ) MOF spheres into (Co 4 S 3 ) MOF spheres. [266] These studies demonstrate that metal sulfides can be prepared from either MOFs or oxide MOFs and that the morphology of metal chalcogenides can be designed during the formation stage of the MOF templates.…”

Section: Synthetic Strategies For Chalcogenide Mof /Other Materials Hybridsmentioning

confidence: 99%

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MOF‐Based Hybrids for Solar Fuel Production

Yoon

Kim

et al. 2021

Advanced Energy Materials

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Solar fuel production, water splitting, and CO2 reduction by sunlight‐assisted catalytic reactions, are attractive and environmentally sustainable approaches used to generate energy. Since many different parameters, including energy band structures, electronic conductivity, surface area, porosity, catalytic activity, and stability of photocatalytic materials, determine the photocatalytic reaction, a single photocatalytic material is often insufficient to fulfill all the requirements. Hybridization to complement the limitations of two or more component materials can provide a viable solution. Particularly, hybridization with metal organic frameworks (MOFs), a new class of materials with excellent controllability of topology, surface area, porosity, morphology, band structure, electrical conductivity, and composition, enables the on‐demand design of a myriad of high‐performance photocatalysts. Moreover, hybrids formed by MOF‐derived materials inherit the distinctive merits from the MOF and offer further diversification for hybrid photocatalysts. Here, the rational design of MOF‐based hybrid photocatalysts for solar fuel production is discussed. The synthetic strategies of diverse MOF‐based hybrids, the key physicochemical parameters of hybrids to determine photocatalytic and photoelectrochemical reactions, and the mechanisms underlying the synergistic enhancement of solar fuel production are reviewed. Moreover, remaining challenges and future perspectives are addressed.

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“…In principle, cocatalysts can be adopted to promote surface catalytic activity and boost electron transfer. − Although noble metals (such as Pd, Pt, and Au) have shown excellent activities, their practical applications are greatly hindered owing to their high cost and scarcity. − Construction of catalysts with heterostructures has been proposed as a feasible strategy to improve the separation of photogenerated electron–hole pairs. − From this viewpoint, CdS is often used to combine noble-metal-free materials to form heterojunctions, − such as MoS 2 , Ni(OH) 2 , NiS x , and graphene. Among them, NiS is an easily accessible cocatalyst and very suitable for enhancing the photocatalytic performance of CdS. − Xu and co-workers first utilized NiS as a cocatalyst on CdS to facilitate the photocatalytic process of hydrogen evolution .…”

Section: Introductionmentioning

confidence: 99%

Bimetallic MOF-Derived Sulfides with Heterojunction Interfaces Synthesized for Photocatalytic Hydrogen Evolution

Liu

Xiang

et al. 2021

Ind. Eng. Chem. Res.

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The synthesis of highly efficient and stable CdS composites without noble metals has become a hotspot in the photocatalytic field. Although NiS is an ideal candidate, it remains a challenge to optimize the combination of NiS and CdS to improve the photocatalytic activity for hydrogen evolution. Herein, we have successfully synthesized a CdS@NiS photocatalyst using bimetallic metal−organic frameworks (MOFs) as the precursor. The formation of bimetallic Cd/Ni-MOFs can lead to well-contacted heterogeneous interfaces between CdS and NiS at the nanoscale, efficiently promoting the separation of photogenerated carriers and boosting electron interface transfer. The obtained results demonstrated that CdS@ NiS exhibits a high photocatalytic hydrogen evolution rate of 42.7 mmol•g −1 •h −1 , and the corresponding apparent quantum yield reaches 13.23% at 450 nm, superior to those obtained using the traditional simple physical mixing methods. This work provides a promising strategy for the design of new photocatalysts for hydrogen evolution.

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MOF based sheet-assembled flowers CdS-MoS2 composite for enhanced visible-light hydrogen production

Cited by 45 publications

References 53 publications

Precise regulation of defect concentration in MOF and its influence on photocatalytic overall water splitting

Precise regulation of defect concentration in MOF and its influence on photocatalytic overall water splitting

MOF‐Based Hybrids for Solar Fuel Production

Bimetallic MOF-Derived Sulfides with Heterojunction Interfaces Synthesized for Photocatalytic Hydrogen Evolution

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