Dual non-metal atom doping enabled 2D 1T-MoS2 cocatalyst with abundant edge-S active sites for efficient photocatalytic H2 evolution

Wang, Lele; Hu, Yue; Xu, Jinyi; Huang, Zefei; Lao, Hongxin; Xu, Jing; Tang, Hua; Yuan, Rusheng; Wang, Zhaoyu; Liu, Qinqin

doi:10.1016/j.ijhydene.2023.01.172

Cited by 35 publications

(4 citation statements)

References 42 publications

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“…The pore size of the samples was located in the range of 4.91, 10.62, and 11.12 nm, respectively (Figure 4b and Table S1). Furthermore, the contact angle between water and 10% TMF−ZIS was much lower (13.5°) than that of the TMF sample (134.4°), indicating that the TMF−ZIS core−shell structure favored the H 2 O adsorption in the HER 58 (Figure S11). The contact angle between BA and the samples also showed that the wetting phenomenon of BA at the surface of photocatalysts favored the BA adsorption in the photocatalytic reactions (Figure S12).…”

Section: Resultsmentioning

confidence: 99%

Boosted Charge Transfer via Coordinate Bond Construction in Porphyrin Metal–Organic Framework/ZnIn₂S₄ Core–Shell Heterostructures

Huang

Wang

et al. 2023

Inorg. Chem.

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Intimate interface design at the molecular level in heterojunctions deserves significant attention since the charge transfer efficiency at the interfaces can greatly affect the catalytic performance. Herein, an efficient interface engineering strategy was reported to design a titanium porphyrin metal−organic framework−ZnIn 2 S 4 (TMF−ZIS) core−shell heterojunction which is tightly connected via coordination bonds (−N−Zn−). Such interfacial chemical bonds as the directional carrier transfer channels afforded improved charge separation efficiency compared to the physical composite of TMF and ZIS without chemical bonding. As a result, the optimized TMF−ZIS composite showed a 13.37 mmol•g −1 •h −1 H 2 production which is 47.7, 3.3, and 2.4 times that of TMF, ZIS, and mechanical mixing samples, respectively. Moreover, the composite also exhibited high photocatalytic tetracycline hydrochloride (TCH) degradation efficiency. Profiting from the core−shell structures, the ZIS shell efficiently prevented the aggregation and photocorrosion of TMF core particles which afforded enhanced chemical stability. Such an interface engineering strategy will be a versatile method to obtain highly effective organic−inorganic heterojunctions and offer new ideas for modulating the interfaces in the heterojunctions at the molecular level.

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Section: Resultsmentioning

confidence: 99%

Boosted Charge Transfer via Coordinate Bond Construction in Porphyrin Metal–Organic Framework/ZnIn₂S₄ Core–Shell Heterostructures

Huang

Wang

et al. 2023

Inorg. Chem.

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“…Therefore, developing green and effective technology is urgently required [3,4]. In recent years, there has been a considerable increase in interest in photocatalytic technology due to its cost-effectiveness and simple operation for pollutant degradation [5][6][7]. Within the domain of photocatalytic technology, the pivotal challenge lies in the design and synthesis of photocatalysts that exhibit enhanced redox potential, a broad spectral response, and superior efficiency in the separation of electron-hole pairs.…”

Section: Introductionmentioning

confidence: 99%

Rational Design of Z-Scheme Heterostructures Composed of Bi/Fe-Based MOFs for the Efficient Photocatalytic Degradation of Organic Pollutants

Xu,

Zhu,

Zhou

et al. 2024

Catalysts

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Metal–organic frameworks (MOFs) have recently gained attention as a highly promising category of photocatalytic materials, showing great potential in the degradation of organic dyes such as Rhodamine B (RhB). Nonetheless, the mono-metal MOF materials in this application are often constrained by their limited light absorption capabilities and their propensity for recombination with carriers. The combination of different metal-based MOFs to form heterogeneous reactors could present a promising approach for the removal of dyes from water. In this work, a new CAU-17/MIL-100(Fe) Z-scheme heterojunction photocatalyst composed of two MOFs with the same ligands is reported to realize the efficient degradation of dyes in water. The combination of the two MOFs results in a significant enhancement of the surface open sites, optical responsivity range, and charge-separating efficiency through synergistic effects. In addition, the capture experiments conducted on the photocatalytic process have verified that ∙O2− and h+ are the primary active species. Consequently, CAU-17/MIL-100(Fe) exhibited excellent photocatalytic activity and stability. The degradation rate of the optimal CAU-17/MIL-100(Fe) photocatalyst was 34.55 times that of CAU-17 and 3.60 times that of MIL-100(Fe). Our work provides a new strategy for exploring the visible-light degradation of RhB in bimetallic MOF composites.

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“…Photocatalytic water splitting to produce hydrogen and for organic pollutant degradation has been one of the most attractive strategies to meet the energy shortages and environmental remediation. − Porphyrin compounds with 18π aromatic macrocycles consisting of four pyrrole units and four bridging carbon atoms can serve as photocatalysts due to their unique electronic and optical properties. − A series of strategies such as metal site insertion, functional group introduction, and morphological modulation are used to improve the activity of the porphyrin-based photocatalysts. − However, a serious reactivity decrease caused by the molecular aggregation restricted their practical application via decreasing the specific surface area and covering the reactive sites. Thus, developing an effective method to improve the stability and activity of porphyrin is of great significance …”

Section: Introductionmentioning

confidence: 99%

Improving the Photoactivity of Porphyrin-Based Metal–Organic Frameworks via Constructing [Ce–O] Active Site and Vacancy

Cheng,

Ren,

Wang

et al. 2024

Inorg. Chem.

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Defect engineering of metal−organic frameworks (MOFs) is a versatile approach to tailoring their electronic structures and photocatalytic performance. Herein, Ce-based porphyrin MOFs (CMFs) featuring controlled structural defects were successfully prepared using a simple acid modulation strategy to drive the photocatalytic H 2 generation. The [Ce−O] unit serves as the active site via a ligand-to-metal charge transfer process, which has been confirmed by in situ XPS analysis. Abundant exposed coordinatively unsaturated Ce−O centers are beneficial for the adsorption and activation of water molecules, which is an important factor for improving the photocatalytic performance of the synthesized defective MOFs. In addition, optical and electrochemical experiments indicate that CMFs with more oxygen vacancies possess higher charge separation efficiency. As a result, the optimized CMF(Zn)-200 sample afforded high stability and activity in the H 2 generation (up to 1603.3 μmol•g −1 •h −1 under cocatalyst-free conditions) and tetracycline hydrochloride removal efficiency (97%), which was 8.45 and 97 times higher than that of pure meso-tetra(4-carboxyphenyl)porphine. This study demonstrates that effective structural modulation and defect introduction can improve the activity and stability of PMOF-based photocatalysts.

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Dual non-metal atom doping enabled 2D 1T-MoS2 cocatalyst with abundant edge-S active sites for efficient photocatalytic H2 evolution

Cited by 35 publications

References 42 publications

Boosted Charge Transfer via Coordinate Bond Construction in Porphyrin Metal–Organic Framework/ZnIn₂S₄ Core–Shell Heterostructures

Boosted Charge Transfer via Coordinate Bond Construction in Porphyrin Metal–Organic Framework/ZnIn₂S₄ Core–Shell Heterostructures

Rational Design of Z-Scheme Heterostructures Composed of Bi/Fe-Based MOFs for the Efficient Photocatalytic Degradation of Organic Pollutants

Improving the Photoactivity of Porphyrin-Based Metal–Organic Frameworks via Constructing [Ce–O] Active Site and Vacancy

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Dual non-metal atom doping enabled 2D 1T-MoS2 cocatalyst with abundant edge-S active sites for efficient photocatalytic H2 evolution

Cited by 35 publications

References 42 publications

Boosted Charge Transfer via Coordinate Bond Construction in Porphyrin Metal–Organic Framework/ZnIn2S4 Core–Shell Heterostructures

Boosted Charge Transfer via Coordinate Bond Construction in Porphyrin Metal–Organic Framework/ZnIn2S4 Core–Shell Heterostructures

Rational Design of Z-Scheme Heterostructures Composed of Bi/Fe-Based MOFs for the Efficient Photocatalytic Degradation of Organic Pollutants

Improving the Photoactivity of Porphyrin-Based Metal–Organic Frameworks via Constructing [Ce–O] Active Site and Vacancy

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Boosted Charge Transfer via Coordinate Bond Construction in Porphyrin Metal–Organic Framework/ZnIn₂S₄ Core–Shell Heterostructures

Boosted Charge Transfer via Coordinate Bond Construction in Porphyrin Metal–Organic Framework/ZnIn₂S₄ Core–Shell Heterostructures