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Article
Chemistry, Physical
Ashish Kumar Kar et al.
Summary: In this study, the catalytic transfer hydrodeoxygenation (CTHDO) of vanillin over a defect-induced UIO-66 MOF was investigated. The unique structural features of the defect-induced UIO-66 MOF significantly enhanced the CTHDO of vanillin. The creation of defects, confirmed by various characterization techniques, resulted in the generation of Lewis acid and dynamic Bronsted acid.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Qixin Yuan et al.
Summary: In this study, carbon dots with a hexagonal boron nitride/graphite (h-BN/G) heterostructure were prepared and found to exhibit excellent catalytic activity and selectivity in an alkaline environment. Experimental and simulation results indicate that the electron-deficient boron atoms at the heterostructure serve as the key active sites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Environmental Sciences
Qingyu Yang et al.
Summary: Pyrazinoquinoxaline-based graphdiyne (PQ-GDY) serves as a microwave antenna for the construction of NH2-UIO-66(Zr) with good dispersibility and crystallinity. Moreover, PQ-GDY exhibits high hole transport property to accelerate hole migration and reduce recombination rate. Under visible light, PQ-GDY@NH2-UIO-66(Zr) shows high photocatalytic stability and NOx removal rate.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Engineering, Environmental
Ya-Ya Yang et al.
Summary: A novel MoO3_x/S-CN heterojunction with an interfacial Mo-N bond and appropriate oxygen vacancies was fabricated to achieve efficient photocatalytic disinfection. The enhanced charge transfer dynamics, achieved through optimizing oxygen vacancies density and forming interfacial Mo-N bond, improved charge transfer efficiency from 36.4% to 52.5% and increased the production of reactive oxygen species. The MoO3_x/S-CN heterojunction successfully inactivated E. coli and S. aureus within 50 minutes and 75 minutes, respectively, and demonstrated resistance to coexisting substances and applicability in a wide pH range and real water bodies.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Weichen Wang et al.
Summary: Designing highly active catalysts for selective hydrodeoxygenation of lignin-derived oxygenates is important for utilizing lignin effectively. Defect engineering in metal-organic frameworks (MOFs) is a promising strategy to tailor the properties of MOFs and synthesize high-performance catalysts. In this study, a bifunctional catalyst consisting of highly dispersed Pd nanoparticles on defective NH2-MIL-53(Al) was prepared using a facile synthetic strategy. The introduction of defects generated coordinatively unsaturated metal sites, which acted as anchor points for Pd nanoparticles and active acid sites for catalytic reactions. The catalyst exhibited outstanding catalytic performance in converting vanillin and other lignin derivatives into decarbonyl products under mild conditions. Density functional theory calculations showed that the HDO reaction mainly proceeded via hydrogenation-hydrogenolysis routes, and the synergistic interaction between Pd and defective NH2-MIL-53(Al) contributed to the catalyst's high activity. The catalyst remained active after being reused 5 times. The engineering of defects in MOFs has great potential for designing novel bifunctional catalysts for lignin valorization.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Jia Tang et al.
Summary: The combination of metal-organic frameworks (MOFs) and nanoshells has great potential in biomedical applications. MOF nanoshells, including hollow-shells, core-shells, and yolk-shells, possess the advantages of MOFs and nanoshells, making them ideal materials for biomedicine. The incorporation of functional nanoparticles or chemotherapeutic molecules with MOF nanoshells enables multi-component synergy. This review article introduces the synthesis strategies for various MOF nanoshells and explores their applications in drug delivery, biosensing, bioimaging, and cancer therapy.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Engineering, Chemical
Guanglu Xia et al.
Summary: In this study, a series of covalent organic frameworks (COFs) with beta-ketoenamine linkages were constructed for photocatalytic H2O2 generation under visible light. TpTt-COF exhibited the highest H2O2 yield of 2647 μmol L-1, attributed to its electron-deficient trait, short charge diffusion distance, and narrowest bandgap. TpTt-COF was anchored on melamine sponges for easy recovery, and the photocatalytic H2O2 evolution over this monolith was respectable and repeatable. This work is instructive for constructing photocatalysts based on COFs and facilitating photocatalytic applications.
Article
Engineering, Chemical
Dingliang Dai et al.
Summary: Core-shell Bi-MOF@BiOX hybrids with different halogen ions (X = I, Br and Cl) were synthesized by regulating their concentration during the solvothermal process. The Bi3+ ions played a crucial role in forming an intimate interface between BiOX and Bi-MOF, enhancing the charge and mass transportation. The resulting hierarchical heterostructures exhibited excellent photocatalytic performance in the elimination of solo and mixed pollutants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Chao Liu et al.
Summary: Semiconducting metal-organic framework based heterostructures with tunable heterojunction coverage and well-matched band structure were synthesized and used as photocatalysts for O-2 reduction reaction, achieving a high hydrogen peroxide production rate.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Aswin Gopakumar et al.
Summary: The development of smart and sustainable photocatalysts is crucial for the synthesis of H2O2 due to the increasing global demand. Traditional methods of H2O2 synthesis generate chemical waste and require high energy input, making the direct synthesis of H2O2 from seawater using photocatalysts significant.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Engineering, Environmental
Haopeng Feng et al.
Summary: The article discusses the enhanced electro-oxidation performance of iron-cobalt layered double hydroxides (FeCoLDH) by doping phosphorus and depositing copper nanodots (NDs). The modified FeCoLDH showed higher degradation ability of tetracycline in various pH conditions and effectively degraded organic pollutants in different water samples. This work provides new electrode materials for electro-oxidation systems with practical application potential and contributes to the fundamental understanding of electrochemistry.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Youzhou He et al.
Summary: This study investigates a defect linker NH2-MIL-125(Ti) photocatalyst and demonstrates its efficient performance in NO removal and hydrogen production. Through photocatalytic experiments and characterization techniques, a possible mechanism and pathway are proposed, providing a new strategy for defect engineering in photocatalytic MOFs materials.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Mengmeng Fan et al.
Summary: Oxygen species functionalized graphene is an effective electrocatalyst for synthesizing hydrogen peroxide through a two-electron oxygen reduction reaction. The type of oxygen species and carbon crystallinity are key factors for its high catalytic performance. However, the traditional method of preparing oxygen species functionalized graphene has drawbacks such as consuming a large amount of strong oxidant and requiring washing. In this study, biomass-based graphene with tunable oxygen species is rapidly fabricated using a CO2 laser and shows high catalytic performance in hydrogen peroxide synthesis.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Physical
Yoshifumi Kondo et al.
Summary: This study demonstrates the successful promotion of photocatalytic H2O2 production by introducing missing-linker defects and Ni single atoms in MOFs. The missing-linker defects suppress the non radiative relaxation of organic linkers and prevent H2O2 decomposition, while the Ni single atoms promote the separation of photogenerated charges and selective oxidation of water to generate H2O2. The synergetic effect of missing-linker defects and Ni single atoms significantly improves the photocatalytic H2O2 production activity.
Article
Engineering, Chemical
Shi-Wen Lv et al.
Summary: Nowadays, photocatalysis assisted advanced oxidation processes have shown great potential in pollution control. Transition metal modified UiO-66-NH2 has been synthesized and used as a photocatalyst for degrading various organic pollutants under visible light irradiation. Fe-UiO-66-NH2 exhibited the highest photocatalytic activity and the developed Fe-UiO-66-NH2/PMS/light oxidation system showed excellent degradation ability. The introduction of Fe ions as a mediator promoted charge transfer and inhibited recombination of photogenerated electrons and holes, leading to enhanced photocatalytic performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jianhao Qiu et al.
Summary: Oxygen vacancy-rich Bi2MoO6 nanoflakes were anchored on cuboid MIL-121, resulting in enhanced separation and transportation rates of photo-induced charge carriers. The Bi2MoO6/MIL-121 with rich oxygen vacancies exhibited excellent photocatalytic activities for Cr(VI) reduction and 2-nitrophenol degradation. The timely consumption of photo-induced electrons and holes further boosted the photocatalytic efficiencies in their coexistent environment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Shi-Qing Wang et al.
Summary: This study investigates the photocatalytic performance of metal-organic frameworks (MOFs) in CO2 reduction by synthesizing UiO-66-NH2 with different types and degrees of defects. The results show that the nature and ligand vacancies of the defects play a crucial role in enhancing the photocatalytic activity. The findings suggest that tailoring the defects of MOFs can boost their photocatalytic performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Yunjang Gu et al.
Summary: Heterogeneous catalysts based on defective metal-organic frameworks (MOFs) have been synthesized and characterized in this study. The synthesized MOFs were analyzed using various techniques, and a computational method was developed to approximate the degree of defects. One of the MOFs showed high catalytic conversion and selectivity, and it could be recycled multiple times.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Haopeng Feng et al.
Summary: This study proposes a design strategy to improve the HER activity of LDHs by P doping and deposition of metal nanodots, achieving an increase of one order of magnitude. The obtained electrocatalyst CPFC-LDH shows excellent activity in alkaline electrolyte, reaching a current density of 10 mA/cm(2) with only 63 mV overpotential for HER.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Manpreet Kaur et al.
Summary: Metal-organic frameworks (MOFs) are porous crystalline materials built through the interconnection between metal clusters and organic linkers, with controllable structures and distribution of catalytically active sites via post-synthesis modification (PSM) using Schiff base. Schiff base complex-anchored MOFs play a significant role in various catalytic reactions, offering a promising strategy to develop highly effective and stable catalysts. These catalysts help overcome the limitations of homogeneous and heterogeneous catalysis, making them valuable for diverse catalytic applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Ya-Ya Yang et al.
Summary: The MoO3-x/NCNs composite with near-infrared light-triggerable thermo-sensitive properties achieved rapid and effective inactivation of E. coli and S. aureus within 60 minutes and 100 minutes, respectively, through photodynamic and photothermal effects.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Tianwei Qian et al.
Summary: A recyclable photocatalyst with high adsorption and photocatalytic performance was developed by constructing a three-component photocatalyst on carbon fiber cloth, which effectively treated antibiotics in flowing sewage.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
Chen Zhao et al.
Summary: Z-scheme Bi5O7I/UiO-66-NH2 heterojunction photocatalysts were successfully constructed via ball-milling, showing superior CIP removal efficiency compared to pristine Bi5O7I and UiO-66-NH2. Among them, the heterojunction with 50 wt% UiO-66-NH2 content (BU-5) exhibited excellent structural stability and optimal CIP removal efficiency, achieving 96.1% removal within 120 minutes of illumination.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Yoshifumi Kondo et al.
Summary: Defect engineering using acetic acid as a modulator on a zirconium-based metal-organic framework (UiO-66-NH2) effectively enhances the photocatalytic performance in hydrogen peroxide (H2O2) production. Introducing missing-linker defects with acetate ligands promotes the linker-to-cluster charge transfer (LCCT) process and suppresses H2O2 decomposition, leading to higher H2O2 concentration under light irradiation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Review
Chemistry, Physical
Sehar Tasleem et al.
Summary: This review discusses the current progress in using metal-organic frameworks (MOFs) as photocatalysts for hydrogen generation. It highlights the structural development, classification, modification strategies, and future applications of MOFs in this field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Zhao-Di Wang et al.
Summary: This study applied a defect-engineering strategy to create intrinsic defects in CuMOF, resulting in the formation of MET-Cu-D material with excellent photocatalytic performance. The fine characterizations provided the exact molecular formula of the defective Cu-MOF, which displayed outstanding H2 evolution performance. The study offers a new approach for the design of defective MOFs, promoting the further development of solar-hydrogen fuel.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Yujie Li et al.
Summary: A zirconium-based metal-organic framework containing boron (UiO-66-B) was prepared as an efficient photocatalyst for H2O2 production. The role of boron in enhancing H2O2 generation efficiency was highlighted through theoretical calculations and experimental results, providing a new strategy for designing photocatalysts with excellent H2O2 evolution efficiency.
MATERIALS HORIZONS
(2021)
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Xi Chen et al.
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Xiaolang Chen et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
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Wenfeng Jin et al.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
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Jun Zhou et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Energy & Fuels
Wenlong Xiang et al.
Article
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Xing Ma et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
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Yang Yang et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
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Xiaoyu Wang et al.
Review
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APPLIED CATALYSIS B-ENVIRONMENTAL
(2018)
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JOURNAL OF HAZARDOUS MATERIALS
(2018)
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Jingjing Shi et al.
CATALYSIS SCIENCE & TECHNOLOGY
(2018)
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2017)
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Arthur De Vos et al.
CHEMISTRY OF MATERIALS
(2017)
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Hira Saleem et al.
MICROPOROUS AND MESOPOROUS MATERIALS
(2016)
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Satoshi Kato et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2013)
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F Sandelin et al.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2006)
