APPLIED CATALYSIS B-ENVIRONMENTAL
·
2020
·
IF 16.683
Chun-Shuai Cao,Jingzhen Wang,Xiaoyong Yu,Yinqing Zhang,Lingyan Zhu
Bisphenol analogues have been widely used and displayed adverse effects on human beings. Although many photocatalysts displayed remarkable performance in degrading bisphenol A (BPA) or bisphenol F (BPF), it is not clear if they may also efficiently decompose other bisphenol analogues. In this study, Bi 5 O 7 I with satisfactory photocatalytic activity was doped with metal-organic framework (UiO-67) to build up Bi 5 O 7 I/UiO-67 heterojunctions. The heterojunction enhanced the charge mobility and separation of the electron-hole pairs, which was conducive for improving the photocatalytic activity. Consequently, 4:1-Bi 5 O 7 I/UiO-67 realized highly effective degradation of seven bisphenol analogues in one hour. Density functional theory (DFT) calculations uncovered that the reaction rate constant k displayed a positive correlation with the Hirshfeld charge q (N) of tertiary butyl carbon attached with different substituent groups. This provides a prospective heterojunction catalyst to degrade a group of pollutants with similar structures, and sheds light on the structural relationship of degradation efficiency.
✓ 已验证
产品关联
DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2026
·
IF 4.7
ShuHuan Chen,Panweiyi Wang,Teshale Ayano Begeno,Afaq Nazir,ZhenXia Du,Shuping Qu
Luminescent metal-organic frameworks (LMOFs) have emerged as promising materials for optical sensing, owing to their tunable luminescent properties. However, most existing LMOF-based sensors rely on single-wavelength fluorescence intensity changes, which suffer from poor resistance to environmental fluctuations due to the absence of auxiliary reference signals, limiting their accuracy, especially for trace ammonia(NH 3 ) below the human olfactory threshold, which evades sensory perception yet poses long-term risks. To address this limitation, UIO-67-x where x denotes the molar ratio of terephthalic acid (H 2 BDC) to biphenyl-4,4`-dicarboxylic acid (H 2 BPDC) was designed. By optimizing the ligand ratio, UIO-67-0.2 was synthesized with well-defined crystallinity, large specific surface area and high fluorescence emission peak intensity. Its regular structure enables efficient encapsulation of rhodamine B (RhB) forming the dual-emission [email protected] platform. This platform has two adjustable emission peaks, both of which respond sensitively and synchronously to ammonia, thereby strengthening signal reliability and anti-interference capability through dual-channel synergistic verification. Notably [email protected] achieves an ultra-low NH 3 limit of detection (LOD) of 0.2 ppm, far below the olfactory threshold, and maintains remarkable stability after 5 cycles with stable reusability. Combining experiments and Density functional theory (DFT) calculations the quenching mechanism is clarified as the synergistic effect of static quenching and charge transfer. A [email protected] drop-cast film exhibits naked-eye distinguishable color change at 2.5 ppm NH 3 under 365 nm Ultraviolet(UV) light. It remains unchanged with other volatile organic compounds (VOCs) and shows concentration-dependent color gradation for semi-quantitative assessment. Furthermore, Digital conversion of fluorescence color signals via ΔE analysis enabled truly quantitative ammonia detection with a linear calibration curve ( R 2 = 0.968), eliminating the subjectivity of naked-eye judgment. This work develops a dual-mode LMOF for sub-olfactory-threshold NH 3 detection and informs anti-interference dual-emission platform design enabling on-site low-cost monitoring.
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2016
·Vol. 45
·期 20
·8614-8621
·
IF 4.177
Lei Xu,Yanping Luo,Lin Sun,Shan Pu,Min Fang,Rong-Xing Yuan,Hong-Bin Du
A new UiO-67-type zirconium metal organic framework (MOF) material UiO-67-bpy-Me (bpy = 2,2-bipyridine-4,4′-dicarboxylic acid, Me = methyl) was prepared by N-quaternization of the pyridine sites in UiO-67-bpy. After N-quaternization, the pristine neutral framework turned cationic while its high thermal and chemical stabilities were primarily preserved. Fast and enhanced anionic dye adsorption was observed in UiO-67-bpy-Me. In addition, despite the decrease in surface area and pore volume, UiO-67-bpy-Me exhibited an evident increase in CO2 uptake compared to UiO-67-bpy. The enhancement was ascribed to the strong interactions between CO2 and the N-quaternized framework. More importantly, as the N-quaternization has changed the electronic structure of the organic linker. UiO-67-bpy-Me showed optical absorption up to ca. 800 nm with a large red shift of 450 nm compared to the pristine UiO-67-bpy (ca. 350 nm). The extended optical absorption may lead to more efficiency in light utilization. A proof-of-concept demonstration showed that UiO-67-bpy-Me could more efficiently catalyze methyl-orange degradation under UV-Vis light irradiation than the pristine UiO-67-bpy. These findings demonstrate that N-quaternization could serve as a facile post-synthetic modification method to tune the chemical/physical properties of free pyridyl-containing MOFs.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2026
·Vol. 40
·期 5
·e70579
·
IF 4.3
Changqing Xia,Zhengshen Bao,Dehong Xu,Shixing Wang,Weili Li
A robust metal–organic framework (MOF) material, UIO67-PS, was synthesized by grafting sulfonic acid groups onto the UIO67-NH 2 framework. This modification significantly enhances the electronegativity and coordination-site density on the MOF surface, enabling threefold higher Au (III) adsorption capacity (536.4 mg/g at pH 2.0 temperature 25°C and agitation speed 120 rpm) compared to pristine UIO67-NH 2 (168.4 mg/g). The material exhibits exceptional acid resistance and recyclability (91% capacity retention after three cycles). Density functional theory (DFT) calculations and X-ray photoelectron spectroscopy (XPS) analyses reveal that the adsorption mechanism is governed by synergistic electrostatic interactions and chelation, wherein electron-rich oxygen/nitrogen-containing functional groups on the adsorbent surface coordinate with metal ions via covalent bonds to form stable five-membered ring complexes. Kinetic studies confirm rapid adsorption equilibrium (< 240 min), while thermodynamic analysis indicates an endothermic, entropy-driven process. Notably, UIO67-PS demonstrates superior selectivity for Au (III) over competing ions (e.g., Zn 2+ and Cu 2+ ) in simulated e-waste leachates. Achieving removal rates as high as 80% in real metallurgical wastewater highlights its potential for practical application. This work reveals key coordination interactions, including complexation and electrostatic attraction, within a simulated e-waste leachate system containing competing ions such as copper and nickel. These insights advance the design strategies of MOFs for sustainable Au (III) recovery and provide a scalable platform for industrial wastewater treatment, contributing to environmental protection and the sustainable utilization of critical material resources.
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Miaolu He,Yiming Jin,Jie Lian,Yue Hu,Yaqiang Yuan,Yilin Yang,Lujie Nie,Jiajing Hao,Rui Miao,Jin Wang,Xudong Wang,Lei Wang
Forward osmosis (FO) has emerged as a promising technology for lithium resource recovery owing to its low energy consumption. However, conventional FO membranes, typically featuring thick separation layers and defect-prone porous structures, suffer from low lithium recovery rates and processing efficiency. Herein, a thermos-responsive UiO-67-PNIPAM composite was constructed as a functional interlayer to dynamically regulate aqueous-phase monomer transport during interfacial polymerization. By leveraging the temperature-responsive nature of PNIPAM and controlling the organic-phase temperature, a vertical temperature gradient was established within the interlayer due to uneven heat transfer. In the upper, warmer region, PNIPAM adopts a collapsed conformation with reduced amide accessibility, exhibiting weak interaction with m-phenylenediamine, thereby enabling rapid monomer release. In the lower, cooler region, extended PNIPAM chains, with amide groups fully exposed, enhance interactions with m-phenylenediamine and hinder its diffusion to the reaction interface. This synergistic regulation promoted a self-terminating IP process, culminating in an ultrathin and dense separation layer. Furthermore, elevated temperature facilitated the escape of dissolved gases from both phases, leading to the formation of pronounced ridge-and-valley structures on the separation layer. This morphology increased the effective water permeation area and water storage capacity. As a result, the UiO-67-PNIPAM interlayer membrane achieved a water flux of 28.30 L m −2 h −1 in FO mode, representing a 100.28% improvement over the conventional membrane. Its reverse salt flux was significantly reduced to 1.44 g m −2 h −1 , a decrease of 47.26%. In lithium recovery tests, the membrane exhibited a high lithium recovery rate, demonstrating its strong potential for efficient lithium extraction.
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Zhenyu Jing,Yanhui Li,Yang Zhang,Mingzhen Wang,Yaohui Sun,Kewei Chen,Bing Chen,Shiyong Zhao,Yonghui Jin,Qiuju Du,Xinxin Pi,Yuqi Wang
Zirconium alginate/graphene oxide (ZA/GO) hydrogel spheres were prepared by crosslinking sodium alginate and GO with Zr 4+ . Then Zr 4+ on the surface of the ZA/GO substrate acted as the metal nucleation site of the UiO-67 crystal and interacted with the organic ligand biphenyl 4-4′-dicarboxylic acid (BPDC) to make UiO-67 grow in situ on the surface of the ZA/GO hydrogel sphere by the hydrothermal method . The BET surface areas of ZA/GO, ZA/UiO-67, and ZA/GO/UiO-67 aerogel spheres were 1.29, 47.71, and 89.33 m 2 /g respectively. The maximum adsorption capacities of ZA/GO, ZA/UiO-67, and ZA/GO/UiO-67 aerogel spheres for methylene blue (MB) at room temperature (298 K) were 145.08, 307.49, and 1105.23 mg/g respectively. The kinetic analysis showed that the adsorption process of MB on the ZA/GO/UiO-67 aerogel sphere was consistent with the pseudo-first-order kinetic model. Isotherm analysis showed that MB was adsorbed on ZA/GO/UiO-67 aerogel spheres as a single layer. Thermodynamic analysis showed that the adsorption process of MB on the ZA/GO/UiO-67 aerogel sphere was exothermic and spontaneous. Adsorption of MB on ZA/GO/UiO-67 aerogel spheres is mainly dependent on π-π bond, electrostatic interaction, and hydrogen bond . After 8 cycles, ZA/GO/UiO-67 aerogel spheres still showed high adsorption performance and good reuse ability.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2024
·
IF 3.7
Yan Gao,Shumin Zhao,Jingwen Huang,Tao Han,Jianshe Zhao
Venturello-structured polyoxometalates (POMs) are effective homogeneous catalysts and confining POMs to size-matched metal-organic frameworks (MOFs) as heterogeneous catalyst is an effective way to improve their practical application. The appropriate pore and narrow window of pristine UiO-67 can not only enclose POMs in single molecule but also limit their leaching and can provide a suitable platform for the oxidation of most sulfur-containing organic compound. The composite (CTA) 3 PW 4 @UiO-67 was prepared by a facile in situ synthesis method, characterized by a variety of means and tested for desulfurization of multicomponent simulated diesel. The results prove that the active component (CTA) 3 PW 4 is effectively encapsulated, and the composite (CTA) 3 PW 4 @UiO-67 show remarkable desulfurization activity and excellent reusability. In addition, the kinetics and possible mechanism of the reaction were investigated. This work opens up a new idea for the design of “host-guest adapted” catalyst suitable for fuel desulfurization technology.
研究领域:
化学工程
·
催化科学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Xueqin Sun,Yan Fan,Jiacheng Liu
A novel of ratiometric fluorescence sensor Eu 3+ @UiO-67-TFSA with pre-concentration effect was fabricated by PSM. • The prepared Eu 3+ @UiO-67-TFSA exhibited high selectivity and sensitivity toward OFL. • The possible sensing mechanism of Eu 3+ @UiO-67-TFSA for OFL was systematically studied. • The Eu 3+ @UiO-67-TFSA paper sensor with smartphone allowed on-site visual rapid OFL detection. The excessive use of ofloxacin (OFL) has led to its persistent residues in water sources and animal-derived foods, posing a threat to human health. Therefore, it is urgent to develop fluorescent sensing materials capable of detecting ofloxacin in water environments and food matrices. Herein, a novel Eu 3+ @tetrafluorosuccinic acid-functionalized ratiometric fluorescent material Eu 3+ @UiO-67-TFSA was prepared by a two-step post-synthetic modification of UiO-67. In the concentration range of 1–15 μM, the Eu 3+ @UiO-67-TFSA had a limit of detection (LOD) of 0.42 μM for OFL, which was approximately 3.90 times lower than that of the non-fluorinated Eu 3+ @UiO-67-SA (LOD = 1.64 μM). The improved sensing performance could be attributed to the pre-concentration effect provided by the Eu 3+ @UiO-67-TFSA. The possible detection mechanism was systematically elucidated through relevant experiments and density functional theory (DFT) calculation. Moreover, the constructed smartphone-assisted visual sensing platform was successfully applied to detect OFL in actual food samples and real water environment samples. A novel ratiometric fluorescent sensor Eu 3+ @UiO-67-TFSA was synthesized through two-step PSM. The preparation of Eu 3+ @UiO-67-TFSA enabled effective detection of OFL via ratiometic fluorescence signals, with a detection limit as low as 0.42 μM, which was approximately 3.90 times lower than that of the non-fluorinated Eu 3+ @UiO-67-SA. The improved sensing performance could be attributed to the pre-concentration effect provided by the as-obtained Eu 3+ @UiO-67-TFSA. Furthermore, the fluorescent test strips based on Eu 3+ @UiO-67-SA was combined with smartphone to realized on-site, visual and rapid detection of OFL. Download: Download high-res image (286KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Yuhao Liu,Xuyi Wang,Liping Chen,Ming Cheng,Hua Wang,Jiaojiao Shang,Dan Zheng,Beibo Zhang,Jianwu Lan,Shaojian Lin
Heavy metal contamination in water poses a serious global environmental challenge. In particular, hexavalent chromium (Cr (VI)) is particularly concerning due to its carcinogenicity and genotoxicity. In this work, core–shell NH2–UiO-66@UiO-67 nanoparticles (NPs) were in situ stepwise grown on sulfonated polypropylene (PP) nonwoven to fabricate a multifunctional composite (NH2–UiO-66@UiO-67/PP composite nonwoven) for efficient removal of Cr (VI). As expected, the resulting NH2–UiO-66@UiO-67/PP composite nonwoven exhibited dual functionality for efficient Cr (VI) remediation: simultaneous adsorption and visible-light-driven photocatalytic reduction, accompanied by effective sequestration of the resulting Cr (III), due to the presence of NH2–UiO-66@UiO-67 NPs. Under visible light irradiation, the composite achieved exceptional performance, reducing Cr (VI) concentrations from 0.608 mg/L to below 0.004 mg/L and lowering total Cr concentrations from 0.876 mg/L to below 0.004 mg/L, corresponding to a removal efficiency of over 99.6%. The mechanism was elucidated as an integrated adsorption-reduction-fixation process. More importantly, the composite demonstrated outstanding recyclability, retaining 80.0% of its removal efficiency after five regeneration cycles, highlighting its practical potential. Therefore, the as-obtained NH2–UiO-66@UiO-67/PP composite nonwoven can be viewed as a highly efficient material for treating Cr (VI)-contaminated wastewater through an adsorption-photocatalytic reduction pathway.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 24
·11337-11345
·
IF 9.931
Wei-Ming Liao,Jian-Hua Zhang,Zheng Wang,Shao-Yun Yin,Mei Pan,Hai-Ping Wang,Cheng-Yong Su
Electron-deficient Ru/Rh half-sandwich units are optoelectronical, stereochemical, and redox and catalytically active in nature. Four different species of these units were designed and successfully incorporated into UiO-67 frameworks by post-synthetic exchange (PSE) method and employed for photocatalytic H2 evolution and CO2 reduction. Among them, the PSE-MOF catalysts containing [M–OH2] (M = Rh or Ru) groups show higher photocatalytic activity than those with [M–Cl], providing a new example of the exploitation of H2O molecules as small ancillary ligands for the construction of Ru/Rh half-sandwich units and subsequent incorporation into MOFs as photocatalytic centers. The application of TEOA (triethanolamine) and DMA (N,N-dimethylaniline) as sacrificial agents leads to different catalytic mechanisms and durations. A long-term hydrogen evolution lasting for 174 h without significant decrease in efficiency was achieved in the RhOH2@UiO-DMA system, showing the advantage of PSE-MOFs as highly stable photocatalytic platforms with superior self-protective properties.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2020
·Vol. 187
·期 2
·1-7
·
IF 6.232
Zhang Xiaoxiong,Zhang Wenjun,Li Gang,Liu Qianqian,Xu Yinsheng,Liu Xin
Terbium(III)-functionalized zirconium-based MOFs (Tb 3+ @UIO-67) were synthesized by doping Tb 3+ into UIO-67 using a post-synthetic modification. The Tb 3+ @UIO-67 (solid or aqueous dispersion) shows only blue fluorescence (emission peaks at 420 nm) under an ultraviolet lamp (254 nm). Upon addition of 2,6-pyridinedicarboxylic acid (DPA; an anthrax biomarker), the color of the Tb 3+ @UIO-67 aqueous dispersion under an ultraviolet lamp changes from blue to green. This is mainly because DPA has a good sensitization effect on Tb 3+ . DPA can be determined by measurement of the ratio of the fluorescence intensities at 544 nm and 420 nm (excitation at 278 nm). The method allows DPA to be detected in the 0.3 to 6 μM concentration range, with a detection limit of 36 nM.
Schematic representation of a ratiometric fluorescent probe synthesized by doping terbium ions into a zirconium-based MOF (UIO-67) for determination of an anthrax biomarker.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICAL CHEMISTRY
·
2021
·
IF 6.986
Xinyang Zhu,Huanhuan Xing,Yuan Xue,Jing Li,Erkang Wang,Shaojun Dong
A chemical fixation strategy originating from single-atom-anchoring with metal–organic frameworks as a carrying matrix was proposed for solid-state electrochemiluminescence (ECL). Herein, UiO-67(N) with the exposure of 2,2′-bipyridine (bpy) ligands could coordinate with Ru2+ to form a local structure of [Ru(bpy)3]2+ (Ru-UiO). The influence of the steric effect induced with different Ru sources was discussed. The as-obtained Ru-UiO exhibits high ECL intensity and outstanding stability in the presence of a coreactant at low concentrations. The proposed synthesis strategy may hold great potential for the synthesis of solid-state ECL materials and their further utilization in ECL analysis.
研究领域:
材料科学
·
分析化学
·
电化学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）