M-008: A stable and reusable metalorganic framework with high crystallinity applied in the photocatalytic hydrogen evolution and the degradation of methyl orange

Alfonso-Herrera, Luis A.; Huerta-Flores, Ali M.; Martínez, Leticia M. Torres; Ramírez-Herrera, Daniel Julián; Rivera, José María

doi:10.1016/j.jphotochem.2019.112240

Cited by 17 publications

(7 citation statements)

References 50 publications

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“…Based on the previous reports, the crystallinity of the photocatalysts would significantly affect the photocatalytic HER. To some extent, the high crystallinity layer would result in better photocatalytic HER 59,60 . Additionally, the peaks of MCS show a little shift after loading MXene, especially for the angles of MCS/0.3 MXene and MCS/0.5 MXene.…”

Section: The Structure and Morphologymentioning

confidence: 99%

Constructing 1D/2D Schottky-Based Heterojunctions between Mn0.2Cd0.8S Nanorods and Ti3C2 Nanosheets for Boosted Photocatalytic H2 Evolution

姜志民¹,

陈晴²,

郑巧清³

et al. 2020

Acta Physico Chimica Sinica

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Sustainable photocatalytic H2 evolution has attracted extensive attention in recent years because it can address both energy shortage and environmental pollution issues. In particular, metal sulfide solid-solution photocatalysts have been widely applied in photocatalytic hydrogen generation owing to their excellent light harvesting properties, narrow enough band gap, and suitable redox potentials of conduction and valance bands. However, it is still challenging to develop low-cost and high-efficiency sulfide solid-solution photocatalysts for practical photocatalytic hydrogen evolution. Recently, 1D MnxCd1−xS nanostructures have shown superior light absorption, charge separation, and H2-evolution activity owing to their shortened diffusion pathway of carriers and high length-to-diameter ratios. Thus, 1D MnxCd1−xS nanostructures have been applied in photocatalytic H2 evolution. However, a single MnxCd1−xS photocatalyst still has some disadvantages for photocatalytic H2 evolution, such as the rapid recombination of photogenerated electron-hole pairs and low quantum efficiency. Herein, to further boost the separation of photogenerated charge carriers and H2-evolution kinetics, an in situ solvothermal method was used to synthesize the 1D/2D Schottkybased heterojunctions between the Mn0.2Cd0.8S nanorods (MCS NRs) and Ti3C2 MXene nanosheets (NSs). Furthermore, various characterization methods have been used to investigate the crucial roles and underlying mechanisms of metallic Ti3C2 MXene NSs in boosting the photocatalytic H2 evolution over the Mn0.2Cd0.8S nanorods. X-ray Diffraction (XRD), Transmission Electron Microscope (TEM), High Resolution Transmission Electron Microscopy (HRTEM), element mapping images, and X-ray Photoelectron Spectroscopy (XPS) results clearly demonstrate that hybrid low-cost Schottky-based heterojunctions have been successfully constructed for practical applications in photocatalytic H2 evolution. Additionally, the photocatalytic hydrogen evolution reaction (HER) was also carried out in a mixed solution of Na2SO3 and Na2S using as the sacrificial agents. The highest hydrogen evolution rate of the optimized 1D/2D Schottky-based heterojunction is 15.73 mmol•g −1 •h −1 , which is 6.72 times higher than that of pure MCS NRs (2.34 mmol•g −1 •h −1 ). An apparent quantum efficiency of 19.6% was achieved at 420 nm. The stability measurements of the binary photocatalysts confirmed their excellent photocatalytic stability for practical applications. More interestingly, the UV-Vis diffuse reflection spectra, photoluminescence (PL) spectrum, transient photocurrent responses, and Electrochemical Impedance Spectroscopy (EIS) Nyquist plots clearly confirmed the promoted charge separation between the MCS NRs and Ti3C2 MXene NSs. The linear sweep voltammetry also showed that the loading of MXene cocatalysts could greatly decrease the overpotential of pure MCS NRs, suggesting that the 2D Ti3C2 NSs could act as an electronic conductive bridge to improve the H2-evolution kinetics. In summary, these results show th...

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Section: The Structure and Morphologymentioning

confidence: 99%

Constructing 1D/2D Schottky-Based Heterojunctions between Mn0.2Cd0.8S Nanorods and Ti3C2 Nanosheets for Boosted Photocatalytic H2 Evolution

姜志民¹,

陈晴²,

郑巧清³

et al. 2020

Acta Physico Chimica Sinica

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“…Energy & Fuels PAPER supercapacitors [12][13][14] and clean energy generation (H 2 evolution, solar cells, and biodiesel production). [15][16][17][18] For example, ZIF-67 (a MOF containing cobalt and 2-methylimidazole) presents an extremely high adsorption capacity in the removal of Malachite green from water (2430 mg g À1 ), which is attributed to a pstacking interaction between the material and the dye. 19 Triazole@UiO-67 (a MOF containing zirconium and [1,1 0biphenyl]-4,4 0 -dicarboxylic acid and functionalized with triazole) shows an excellent CO 2 uptake (182 cm 3 g À1 ), which is related to the coordination bond, hydrogen bond, and van der Waals supramolecular interactions.…”

Section: Sustainablementioning

confidence: 99%

“…Because some MOFs have presented remarkable surface area values ( e.g., 14 600 m 2 g −1 ), 5 these materials have shown outstanding results in several applications such as removal of pollutants from water (dyes, heavy metals, personal care products, drugs, and phenols, among others), 6–8 gas storage (CO 2, H 2 , CH 4 , SO 2 , and H 2 S), 9–11 supercapacitors 12–14 and clean energy generation (H 2 evolution, solar cells, and biodiesel production). 15–18 For example, ZIF-67 (a MOF containing cobalt and 2-methylimidazole) presents an extremely high adsorption capacity in the removal of Malachite green from water (2430 mg g −1 ), which is attributed to a π-stacking interaction between the material and the dye. 19 Triazole@UiO-67 (a MOF containing zirconium and [1,1′-biphenyl]-4,4′-dicarboxylic acid and functionalized with triazole) shows an excellent CO 2 uptake (182 cm 3 g −1 ), which is related to the coordination bond, hydrogen bond, and van der Waals supramolecular interactions.…”

Section: Introductionmentioning

confidence: 99%

The role of supramolecular interactions and pyridine groups in the (photo)electrocatalytic properties of a non-precious Co-based MOF

Alfonso-Herrera

Rivera

Sánchez-Vázquez

et al. 2022

Sustainable Energy Fuels

Self Cite

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“…Most of the materials used for photocatalytic hydrogen evolution PHE applications include inorganic oxides such as TiO 2 , ZnO, and SrZrO 3 , due to their high stability. The application of metalorganic frameworks in these processes is limited due to the loss of efficiency attributed to the recombination of electrons and holes [79]. Even so, together with the unique porous structure of MOFs, a remarkable hydrogen evolution reaction HER performance can be achieved using different overpotential in phosphate buffer solution (PBS, pH = 7.0) [80].…”

Section: Hydrogen Evolutionmentioning

confidence: 99%

Transition Metals-Based Metal-Organic Frameworks, Synthesis, and Environmental Applications

Chiñas-Rojas¹,

Vivar-Vera²,

Cruz-Martínez³

et al. 2022

Sorption - From Fundamentals to Applications

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This work illustrates examples of metal-organic frameworks (MOFs) derived from transition metals and their environmental applications in areas of catalysis, sorption, and hydrogen evolution. Explanation of some of the techniques employed for their synthesis has been discussed. On the other hand, the advantages of the use of hybrid materials such as the metal-organic frameworks are exposed in this book as well a detailed description of the different linkers and metals used for the synthesis of this kind of porous materials going through the methodologies and techniques utilized by different authors to obtain good-quality crystalline applicable materials. Adjustments of linker geometry, length, ratio, and the functional group can tune the size, shape, and internal surface property of an MOF for a targeted application. The uses of MOFs are exploring new different areas of chemistry such as catalysis, adsorption, carrier systems, hydrogen evolution, photocatalysis, and more. Different examples of MOFs from Scandium to Zinc are well described in this book, and finally, a brief description of some common environmental applications such as metals and azo dyes sorption, hydrogen evolution, and catalyst in the transesterification process of vegetable oils to produce biodiesel is explored and commented.

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M-008: A stable and reusable metalorganic framework with high crystallinity applied in the photocatalytic hydrogen evolution and the degradation of methyl orange

Cited by 17 publications

References 50 publications

Constructing 1D/2D Schottky-Based Heterojunctions between Mn<sub>0.2</sub>Cd<sub>0.8</sub>S Nanorods and Ti<sub>3</sub>C<sub>2</sub> Nanosheets for Boosted Photocatalytic H<sub>2</sub> Evolution

Constructing 1D/2D Schottky-Based Heterojunctions between Mn<sub>0.2</sub>Cd<sub>0.8</sub>S Nanorods and Ti<sub>3</sub>C<sub>2</sub> Nanosheets for Boosted Photocatalytic H<sub>2</sub> Evolution

The role of supramolecular interactions and pyridine groups in the (photo)electrocatalytic properties of a non-precious Co-based MOF

Transition Metals-Based Metal-Organic Frameworks, Synthesis, and Environmental Applications

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