Query：
学者姓名：吴棱
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
Defect engineering and single atom incorporation can provide more active sites to modulate the surface electronic structure of a catalyst and to activate reactant molecules. Herein, a series of Ru-anchored DUT-67(Zr) MOFs with explicit defect sites have been prepared for photocatalytic nitrogen reduction. It is characterized that Ru/DUT-67(Zr) possesses uniformly dispersed Ru single atoms and unsaturated Zr. Typically, 1.0 %Ru/DUT-67 (Zr) shows best performance with a NH4+ yield of 61.1 mu mol center dot g-1 center dot h-1, which is approximately 6-folds higher than that of defective DUT-67(Zr) without Ru single atom (DUT-L), while pristine DUT-67(Zr) exhibits a lack of the photocatalytic N2 reduction activity. The observed enhancement can be attributed to the introduction of Ru and unsaturated Zr sites induced by irradiation. Both of them can work together act as active centers to absorb and activate dinitrogen molecule. Furthermore, benefited from the electronic channel (Ru-S) between Ru and DUT-67 (Zr), the separation of photogenerated carriers has been greatly improved, contributing to the collaborative conversion of activated N2 to NH3. This study provides a new insight for designing a dual active sites photo- catalyst with unsaturated coordinated sites and the single atoms by the coordinately interaction of functionalized linker.
Keyword ：
Nitrogen activation Nitrogen activation Ru/DUT-67 MOF Ru/DUT-67 MOF Single atoms Single atoms Synergistic effect Synergistic effect
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Qiu, Jinjing , Chen, Qi , Liu, Cheng et al. Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 366 . |
| MLA | Qiu, Jinjing et al. "Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 366 (2025) . |
| APA | Qiu, Jinjing , Chen, Qi , Liu, Cheng , Chen, Yueling , Wu, Jionghua , Jing, Kaiqiang et al. Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 366 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
This work develops a series of bimetallic MIL-68(InFe) MOF nanorods (NM(In1-xFex)) mimicking the nitrogenase for biomimetic photocatalytic N-2 fixation. The partial substitution of In3+ with Fe3+ leads to the electron redistribution from In3+ to Fe3+, generating electron-poor In3+ (In(3+delta)+) sites and electron-rich Fe3+ (Fe(3-delta)+) sites as an electron acceptor-donor combination to promote the N-2 activation by a pi back-donation mechanism. The smaller size of the nanorods further provides more accessible active sites than the bulk counterpart. In cooperation with the H+ released from the H2O, the activated N-2 molecules were reduced by photogenerated electrons to give NH3. The optimal sample NM(In0.90Fe0.10) exhibited the highest NH4+ production rate of 30.8 mu molh(-1)g(-1) without any sacrificial agent, attributed to the presence of abundant In/Fe bimetallic sites for N-2 activation and enhanced charge mobility. This work provides new insights into rational design for artificial N-2 fixation systems by mimicking natural nitrogenase.
Keyword ：
Dual-metal sites Dual-metal sites MOFs MOFs N-2 activation N-2 activation Photocatalysis Photocatalysis
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Cheng , Chen, Mengning , Chen, Yueling et al. Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
| MLA | Liu, Cheng et al. "Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation" . | CHEMICAL ENGINEERING JOURNAL 498 (2024) . |
| APA | Liu, Cheng , Chen, Mengning , Chen, Yueling , Chen, Qi , Wu, Jionghua , Lin, Sen et al. Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation . | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Covalent organic frameworks (COFs) with excellent structural tunability have emerged as fascinating photocatalysts to fulfill future energy demands. Here, we developed a COFs heterostructure by assembling two COFs for photocatalytic overall water splitting. The resulting heterostructure exhibited an effective spatial separation of photoredox sites originating from the efficient separation of photoinduced charge carriers through an orientated interfacial electron transfer pathway. Accordingly, the heterostructure of the COFs displays excellent activity for stoichiometric water splitting into H-2 and O-2 under 5 W white LED light irradiation. Our efficiencies of H-2 and O-2 evolution rates up to 120 and 58 mu mol g(-1) h(-1) are significantly higher than those reported previously. The combination of experiments and theoretical calculations shows that water oxidation proceeds by a metal-free hydration-mediated pathway. This work sheds light on a rational design of the COF heterostructure with spatially separated photoredox for water splitting.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Niu, Qing , Chen, Wei , Pan, Guodong et al. Spatially Separated Photoredox in a Covalent Organic Frameworks Heterostructure Boosting Overall Water Splitting [J]. | ACS MATERIALS LETTERS , 2024 , 6 (4) : 1411-1417 . |
| MLA | Niu, Qing et al. "Spatially Separated Photoredox in a Covalent Organic Frameworks Heterostructure Boosting Overall Water Splitting" . | ACS MATERIALS LETTERS 6 . 4 (2024) : 1411-1417 . |
| APA | Niu, Qing , Chen, Wei , Pan, Guodong , Li, Liuyi , Yu, Yan , Bi, Jinhong et al. Spatially Separated Photoredox in a Covalent Organic Frameworks Heterostructure Boosting Overall Water Splitting . | ACS MATERIALS LETTERS , 2024 , 6 (4) , 1411-1417 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Adsorption and activation of C-H bonds by photocatalysts are crucial for the efficient conversion of C-H bonds to produce high-value chemicals. Nevertheless, the delivery of surface-active oxygen species for C-H bond oxygenation inevitably needs to overcome obstacles due to the separated active centers, which suppresses the catalytic efficiency. Herein, Ni dopants are introduced into a monolayer Bi2WO6 to create cascaded active units consisting of unsaturated W atoms and Bi/O frustrated Lewis pairs. Experimental characterizations and density functional theory calculations reveal that these special sites can establish an efficient and controllable C-H bond oxidation process. The activated oxygen species on unsaturated W are readily transferred to the Bi/O sites for C-H bond oxygenation. The catalyst with a Ni mass fraction of 1.8% exhibits excellent toluene conversion rates and high selectivity towards benzaldehyde. This study presents a fascinating strategy for toluene oxidation through the design of efficient cascaded active units.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Shi, Yingzhang , Li, Peng , Chen, Huiling et al. Photocatalytic toluene oxidation with nickel-mediated cascaded active units over Ni/Bi2WO6 monolayers [J]. | NATURE COMMUNICATIONS , 2024 , 15 (1) . |
| MLA | Shi, Yingzhang et al. "Photocatalytic toluene oxidation with nickel-mediated cascaded active units over Ni/Bi2WO6 monolayers" . | NATURE COMMUNICATIONS 15 . 1 (2024) . |
| APA | Shi, Yingzhang , Li, Peng , Chen, Huiling , Wang, Zhiwen , Song, Yujie , Tang, Yu et al. Photocatalytic toluene oxidation with nickel-mediated cascaded active units over Ni/Bi2WO6 monolayers . | NATURE COMMUNICATIONS , 2024 , 15 (1) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The efficient removal of highly toxic polyhalogenated biphenyls is rather challenging, mainly due to the difficulties in splitting C-X (X = Cl or Br) bond with high bond energy, as well as the transfer of active hydrogen species during the reduction dehalogenation process. In this work, sub-nanometer Pd-Pt alloy clusters (ca. 1 nm) supported on defect-containing TiO2(B) nanosheets (PdPt/TB), on absorption of visible light illumination (lambda > 400 nm), were prepared and served as an efficient photocatalysts for dehalogenation of polyhalogenated biphenyls with H2O as the hydrogen source. An optimal sample (Pd0.7Pt0.3/TB) shows the highest photocatalytic dehalogenation efficiency for 3,3 ',4,4 '-trtrachlorobiphenyl (PCB77) within 30 mins, which is 12.5, 3.5 and 3 times higher than that of Pt-1/TB, Pd-1/TB, and Pd-0.7 + Pt-0.3/TB samples, respectively. Besides, 4,4 '-dibromobiphenyl (PBB15) was also completely removed within 10 mins by using Pd0.7Pt0.3/TB photocatalyst, demonstrating its potential applications. Experiments and d-band theory calculations revealed that the introduction of Pt can regulate the d-band center of Pd to strength the interaction between active hydrogen with alloy and promote the transfer of hydrogen species. Meanwhile, Pd-Pt alloy is conducive to activate the C-X bond of polyhalogenated biphenyls. Finally, a mechanism based on Pd-Pt alloy clusters synergistic interaction is proposed at the molecular level. This work demonstrates the successful synthesis of sub-nanometer Pd-Pt alloy nanoclusters and elucidates the effect of interaction among Pd, Pt and supports, providing an efficient method for the removal of polyhalogenated compounds by photocatalytic technology.
Keyword ：
d -band center d -band center Pd-Pt alloy Pd-Pt alloy Photocatalysis Photocatalysis Polyhalogenated biphenyls Polyhalogenated biphenyls Sub-nanometer cluster Sub-nanometer cluster
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Li, Dexuan , Liu, Cheng , Huang, Danlei et al. Optimizing the d-band center of sub-nanometer Pd-Pt alloy clusters for improved photocatalytic dehalogenation of polyhalogenated biphenyls [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 342 . |
| MLA | Li, Dexuan et al. "Optimizing the d-band center of sub-nanometer Pd-Pt alloy clusters for improved photocatalytic dehalogenation of polyhalogenated biphenyls" . | SEPARATION AND PURIFICATION TECHNOLOGY 342 (2024) . |
| APA | Li, Dexuan , Liu, Cheng , Huang, Danlei , Wu, Ling , Li, Chuanhao , Guo, Wei . Optimizing the d-band center of sub-nanometer Pd-Pt alloy clusters for improved photocatalytic dehalogenation of polyhalogenated biphenyls . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 342 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
A series of Al3+-doped UiO-66(Ce) MOFs (U(CexAl1_ x)) was developed to reveal the roles of metal doping on active site formation and substrate activation in photocatalytic selective transformation of amines to imines. Al3+ doping induced crystal structure distortion to form coordinately unsaturated metal (Al, Ce) sites as Lewis acid sites to chemisorb and activate benzylamine (BA). In situ FTIR revealed that the Al site with stronger acid strength facilitated BA activation. The activation degree of N-H bonds in BA was evaluated by changes of calculated force constant. The intermediate products were confirmed through time-dependent in situ FTIR. The Al3+-doped sample U(Ce0.90Al0.10), the optimal catalyst, showed a significantly increased BA conversion (97.6 %) than that (47.5 %) of undoped sample, which was attributed to enough active sites and the optimal charge mobility. Finally, the present study proposes a synergistic photocatalytic mechanism associated with molecular activation to demonstrate selective oxidation pathways at the molecular level.
Keyword ：
Active sites Active sites Metal doping Metal doping Photocatalysis Photocatalysis UiO-66(Ce) UiO-66(Ce)
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Cheng , Chen, Huiling , Chen, Qi et al. Active site modulation in UiO-66(Ce) MOFs by Al3+doping for boosting photocatalysis [J]. | JOURNAL OF CATALYSIS , 2024 , 437 . |
| MLA | Liu, Cheng et al. "Active site modulation in UiO-66(Ce) MOFs by Al3+doping for boosting photocatalysis" . | JOURNAL OF CATALYSIS 437 (2024) . |
| APA | Liu, Cheng , Chen, Huiling , Chen, Qi , Bi, Jinhong , Yu, Jimmy C. , Wu, Ling . Active site modulation in UiO-66(Ce) MOFs by Al3+doping for boosting photocatalysis . | JOURNAL OF CATALYSIS , 2024 , 437 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Designing photocatalysts with well-defined structure-function relationships is imperative for propelling the progression of desired photocatalytic oxidation. Herein, the efficient conversion of solar energy to H2O2 and subsequently to hydroxyl radicals (center dot OH) is achieved through a synergistic interplay between olefin linkage (-C = C-) and spatially separated benzene-triazine dual reaction sites within covalent organic frameworks (COFs). The upgraded -C = C- can increase the conjugation degree of COFs, which establishes an expanded superstructure for boosting charge separation/transfer and stability. This precise modulation renders more opportunities for the hot electrons to migrate to the benzene site for solar-to-H2O2 generation, and to the triazine site for H2O2-to-center dot OH, separately. The optimized center dot OH generation pathway enables remarkable oxidation performances against recalcitrant organic pollutants, and pathogenic microorganisms under visible light irradiation. This work provides new insights for tuning the synergistic interactions of various building blocks within the COFs for the selective generation of highly reactive center dot OH for environmental remediation.
Keyword ：
Covalent organic frameworks Covalent organic frameworks H2O2 activation H2O2 activation Hydroxyl radicals Hydroxyl radicals Photocatalysis Photocatalysis Spatial dual sites Spatial dual sites
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Jinpeng , Huang, Guocheng , Chen, Qiaoshan et al. Upgrading structural conjugation in covalent organic framework with spatial dual sites enables boosting solar-to-H2O2-to-•OH for environmental remediation [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2024 , 356 . |
| MLA | Zhang, Jinpeng et al. "Upgrading structural conjugation in covalent organic framework with spatial dual sites enables boosting solar-to-H2O2-to-•OH for environmental remediation" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 356 (2024) . |
| APA | Zhang, Jinpeng , Huang, Guocheng , Chen, Qiaoshan , Wu, Ling , Li, Liuyi , Bi, Jinhong . Upgrading structural conjugation in covalent organic framework with spatial dual sites enables boosting solar-to-H2O2-to-•OH for environmental remediation . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2024 , 356 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Photocatalytic N2 fixation is a green process for ammonia synthesis by converting N2 and H2O to NH3 and O2 directly using solar energy. Its efficiency is largely limited by the chemisorption and activation of N2. This work adopts defect engineering strategy to develop a series of MIL-68(Fe) MOFs with varying concentrations of defects by doping Cu2+ on the metal nodes of MOFs. Upon Cu2+ doping, a larger number of oxygen vacancy defects are created due to the induced crystal distortion to form coordinatively unsaturated Fe2+ sites, which can serve as the active sites for promoting the chemisorption and activation of N2. The photogenerated holes oxidize H2O to O2 and H+, and the photogenerated electrons combine with formed H+ to reduce the activated N2 to NH3. It was found that the sample with 10 mol% Cu2+ doping shows the highest NH3 production rate (21.0 mu mol center dot g- 1 center dot h-1), which is 8.4 times higher than that (2.50 mu mol center dot g- 1 center dot h-1) of the pristine MIL-68(Fe). The excellent performance is ascribed to the adequate Fe2+ active sites to chemisorb and activate N2 and the optimal mobility of photogenerated charges. Finally, a mechanism is proposed to illustrate how the number of defects affects the photocatalytic N2 fixation performance at the molecular level.
Keyword ：
Active sites Active sites Defect engineering Defect engineering MIL-68(Fe) MIL-68(Fe) N2 fixation N2 fixation Photocatalysis Photocatalysis
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Zewei , Liu, Cheng , Chen, Yueling et al. Defect modulation of MIL-68(Fe) MOFs by Cu doping for boosting photocatalytic N 2 fixation [J]. | JOURNAL OF CATALYSIS , 2024 , 432 . |
| MLA | Zhang, Zewei et al. "Defect modulation of MIL-68(Fe) MOFs by Cu doping for boosting photocatalytic N 2 fixation" . | JOURNAL OF CATALYSIS 432 (2024) . |
| APA | Zhang, Zewei , Liu, Cheng , Chen, Yueling , Chen, Qi , Shi, Yingzhang , Wang, Zhiwen et al. Defect modulation of MIL-68(Fe) MOFs by Cu doping for boosting photocatalytic N 2 fixation . | JOURNAL OF CATALYSIS , 2024 , 432 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Photocatalysis, which uses sunlight, N-2 and H2O to produce NH3, is a more sustainable approach to N-2 fixation than the Haber-Bosch process. However, its efficiency is severely limited by the difficulty of activating N N bonds. This work presents metal (M = Cu, Fe, V)-substituted MIL-125(Ti) (MIL-(MTi)) for photocatalytic N-2 fixation without using any sacrificial agents. Structural characterizations reveal that the active sites including oxygen vacancies (OV) and Ti3+ species are formed by the resulting crystal distortion due to the partial substitution of Ti4+ by other metal ions (Cu+, Fe2+, V3+) in MIL-125(Ti). MIL-(CuTi) possesses a larger number of OV and Ti3+ compared to MIL-(FeTi) and MIL-(VTi) due to the larger valence difference between Cu+ and Ti4+. These active sites not only promote the adsorption and activation of N-2 and H2O, but also facilitate the photo-generated charge mobility. Photogenerated holes oxidize H2O to produce O-2 and H+. Photogenerated electrons reduce N-2 activated on Ti3+ sites by combining with H+ to form NH4+. Therefore, MIL-(CuTi) shows the highest NH4+ production rate 46.5 mu mol center dot h(-1)center dot g(-1), which is much higher than that (1.2 mu mol center dot h(-1)center dot g(-1)) of the pristine MIL-125(Ti). This work provides a new insight into rational design for artificial N-2 fixation systems by the construction of the active site.
Keyword ：
MOFs MOFs N-2 activation N-2 activation Photocatalysis Photocatalysis Ti3+ Ti3+
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Cheng , Chen, Qi , Chen, Yueling et al. Ti3+-mediated MIL-125(Ti) by metal substitution for boosting photocatalytic N2 fixation [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2024 , 678 : 616-626 . |
| MLA | Liu, Cheng et al. "Ti3+-mediated MIL-125(Ti) by metal substitution for boosting photocatalytic N2 fixation" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 678 (2024) : 616-626 . |
| APA | Liu, Cheng , Chen, Qi , Chen, Yueling , Yu, Jimmy C. , Wu, Jionghua , Wu, Ling . Ti3+-mediated MIL-125(Ti) by metal substitution for boosting photocatalytic N2 fixation . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2024 , 678 , 616-626 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
A series of 2D/2D MoS2/Bi2WO6 S-scheme heterojunctions consisting of ultrathin MoS2 nanosheets (MS, 1.6 nm) and ultrathin Bi2WO6 nanosheets (BWO, 1.5 nm) were developed for photocatalytic degradation of ciprofloxacin. The samples with 5 % mass ratio of MS (5 %MS/BWO) exhibits the almost complete degradation of ciprofloxacin (approximate to 100 %) under visible light. It is evidenced that the formation of S-scheme heterojunction with close interfacial interaction facilitates the photoinduced carrier separation and the generation of surface acid sites. The activation of ciprofloxacin molecules is realized through the coordinately interaction of C-N and C=O with the surface W sites. Moreover, the OVs in BWO side is a convenient pathway for activated of O-2, embodying in the generation of center dot O-2(-) and center dot OH under visible light over photocatalyst. Such an association of charge transfer mechanism with coordination activation shows the enhanced photocatalytic performance toward ciprofloxacin. This work provides a motivation which designs an S-scheme heterojunction photocatalyst with the ability to activate the specific group in molecules to comprehend the degradation of antibiotics.
Keyword ：
Bi2WO6 nanosheet Bi2WO6 nanosheet Molecule coordination activation Molecule coordination activation MoS2 nanosheet MoS2 nanosheet Photocatalysis Photocatalysis S-scheme heterojunctions S-scheme heterojunctions
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Chen, Qi , Liu, Cheng , Liu, Rui et al. Ultrathin 2D/2D MoS2/Bi2WO6 S-scheme heterojunction for boosting photocatalytic degradation of ciprofloxacin [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 355 . |
| MLA | Chen, Qi et al. "Ultrathin 2D/2D MoS2/Bi2WO6 S-scheme heterojunction for boosting photocatalytic degradation of ciprofloxacin" . | SEPARATION AND PURIFICATION TECHNOLOGY 355 (2024) . |
| APA | Chen, Qi , Liu, Cheng , Liu, Rui , Hou, Yidong , Bi, Jinhong , Yu, Jimmy C. et al. Ultrathin 2D/2D MoS2/Bi2WO6 S-scheme heterojunction for boosting photocatalytic degradation of ciprofloxacin . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 355 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
