JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2025
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IF 6
Meinan Yang,Nan Wang,Xu Wang,Ruiyong Zhang,Ini-lbehe Nabuk Etim,Mei-E. Yue,Jizhou Duan,Baorong Hou,Wolfgang Sand
Oxygen vacancies can provide active sites for catalysts, promoting catalytic activity. However, there are fewer nanozyme catalysts with oxygen vacancies. In this study, CeO 2 metal–organic framework (CeO 2 -MOF) nanorods with oxygen vacancies are synthesized through a simple hydrothermal and calcination processes. The obtained CeO 2 -MOFs exhibit excellent nanozyme catalytic activity for antibacterial applications. The CeO 2 -MOF nanorods demonstrate intrinsic haloperoxidase-like activity by catalyzing the bromination of organic signaling compounds, outperforming the catalytic properties of pure CeO 2 . The activity of CeO 2 -MOF (6) is the best because of its large specific surface area of 103.638 m 2 /g, surpassing that of CeO 2 at 74.752 m 2 /g. The oxygen vacancies are crucial in regulating the electronic structure of CeO 2 -MOFs, thereby improving the catalytic performance. The experiments of multiple substrates show that CeO 2 -MOF (6) exhibits good stability and recyclability. Additionally, CeO 2 -MOF (6) can catalyze the oxidation of Br - with H 2 O 2 to the corresponding hypobromous acid (HBrO), which exhibits strong antibacterial activity against typical marine bacteria ( Pseudomonas aeruginosa ). This study expands the range of biomimetic enzyme materials. It provides an efficient and green perspective and strategy for developing antibacterial and antifouling biomimetic catalysts, which offers a sustainable alternative for industrial applications in marine coatings and environmental protection.
研究领域:
材料科学
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生物学
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环境科学
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
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2024
·
IF 4.9
Yuxin He,Hecun Zou,Xinhui Jiang,Yanrui Wei,Siqiao Li,Tong Wu,Zhengwei Zhang
Foodborne residue of carbendazim (CBZ) poses a major threat to human health. Here, we rationally designed a smartphone-assisted fluorescent sensor based on bimetallic-organic framework (Eu/Tb-MOF) for ultrasensitive and visual monitoring of CBZ. The Eu/Tb-MOF nanorods fabricated using Eu 3+ /Tb 3+ as metal nodes and homobenzoic tricarboxylic acid (H 3 BTC) as organic ligand exhibit superior optical properties. After adding CBZ, the strong orange fluorescence of Eu/Tb-MOF nanorods was suppressed by the inner filter effect (IFE). The linear ranges of the fluorescent sensor were 0.01–15 and 15–80 µg/mL, with a detection limit as low as 7.09 ng/mL. The analyses of CBZ residue in tomato and orange samples showed satisfactory recoveries of 99.32 %–101.97 % and low relative standard deviations of 0.87 %–3.44 %., verifying the practicality of the probe for CBZ. Notably, a simple and portable smartphone-assisted sensing platform based on the Eu/Tb-MOF nanorods was successfully constructed for quick, visual, and real-time monitoring of CBZ residue. This work provides an efficient onsite analytical method for assessment and warning-early of CBZ to safeguard food quality
研究领域:
食品安全
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分析化学
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光学传感
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Cheng Liu,Mengning Chen,Yueling Chen,Qi Chen,Jionghua Wu,Sen Lin,Ling Wu,Jimmy C. Yu
This work develops a series of bimetallic MIL-68(InFe) MOF nanorods (NM(In 1-x Fe x )) mimicking the nitrogenase for biomimetic photocatalytic N 2 fixation. The partial substitution of In 3+ with Fe 3+ leads to the electron redistribution from In 3+ to Fe 3+ , generating electron-poor In 3+ (In (3+δ)+ ) sites and electron-rich Fe 3+ (Fe (3–δ)+ ) sites as an electron acceptor–donor combination to promote the N 2 activation by a π 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 H 2 O, the activated N 2 molecules were reduced by photogenerated electrons to give NH 3 . The optimal sample NM(In 0.90 Fe 0.10 ) exhibited the highest NH 4 + production rate of 30.8 µmol·h −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.
研究领域:
材料科学
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环境科学
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生物化学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
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2021
·Vol. 9
·期 14
·9048-9055
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IF 12.732
Xu Ma,Zhuoyi Li,Zheng Deng,Danke Chen,Xiaobin Wang,Xinyi Wan,Zhou Fang,Xinsheng Peng
Although solar vapor desalination via interface water evaporation (SDWIE) from seawater and evaporation-induced electricity generation from pure water or low concentration salt water, respectively, have been realized separately in different systems, cogenerating drinkable water and electricity from seawater via one device simultaneously is more desirable but still challenging. In this work, a flexible Cu-CAT-1 MOF nanorod array membrane with controllable 2D/3D structures is rationally designed via a facile solid conversion process at room temperature. The Cu-CAT-1 nanorod arrays anchor on filter paper via a thin gelatin layer. Due to unique hierarchical architectures, superior solar absorption, good photothermal conversion, high zeta potentials and outstanding hydrophilicity, the resulting membrane constructed 3D SDIWE device simultaneously displays extraordinary solar desalination performance (2.07 kg m−2 h−1 based on the projected area) and nice all-weather electricity output (18.2 mW m−2) using simulated seawater. It can power up small electronic devices such as calculators, timers and light-emitting diodes (LEDs). This provides a novel avenue for the design of drinkable water and electricity cogeneration devices.
研究领域:
材料科学
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能源工程
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环境科学
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DOI
高影响因子
JOURNAL OF POROUS MATERIALS
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2021
·Vol. 29
·期 1
·97-102
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IF 2.496
Shen Tieyin,Zhong Mingjun,Feng Lijuan,Sui Zhuyin,Chen Qi
Metal nanoparticles (MNPs)/metal–organic frameworks (MOFs) composites have become a research hotspot because the cooperation between MNPs and MOF can effectively improve the catalytic performance. However, development of a simple method to disperse the tiny MNPs on MOF is still a great challenge. In this work, a AuPdPt/Cu-MOF composite was prepared successfully by a one-step reduction process. First, Cu-MOF with one-dimensional nanorod structure was prepared by using surfactant PVP to control morphological growth. Second, the AuPdPt/Cu-MOF composite was synthesized by reducing the metal precursor to AuPdPt nanoparticles (NPs) supported on the surface of Cu-MOF. Encouragingly, synergistic effect between Au, Pd, and Pt, along with high dispersion of AuPdPt NPs on Cu-MOF nanorods, leading to excellent catalytic activities toward the benzyl alcohol with a conversion rate of 66%. Thus, this simple strategy to design promising MNPs/MOF composite can provide various opportunities in the field of catalysis.
研究领域:
材料科学
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催化
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）