INORGANIC CHEMISTRY COMMUNICATIONS
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2021
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IF 2.495
Ying-yue Qin,Qiao-ying Wang,Jin-Long Ge,Fang Wu
Amino-MIL-53(Al) (NH 2 -MIL-53(Al)) nanocrystals were successfully obtained through microwave ultrasound-assisted method. The structure and morphology of the as-synthesized NH 2 -MIL-53(Al) nanocrystals were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and N 2 adsorption–desorption isotherms, respectively. Upon excitation at 388 nm, the as-synthesized NH 2 -MIL-53(Al) nanocrystals show strong emission peak at 454 nm in n-octane solution at room temperature. Meanwhile, the fluorescence explorations revealed that NH 2 -MIL-53(Al) can selectively detect organosulfur compounds, including thiophene and benzothiophene through quenching effect in model fuel, with high quenching constant and low detection limit. This work presents a facile platform for the detection of organosulfur compounds in model fuel.
研究领域:
材料科学
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化学
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2019
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IF 14.229
Ranran Yuan,Cailiang Yue,Jinli Qiu,Fuqiang Liu,Aimin Li
TiO 2 @NH 2 -MIL-88B(Fe) heterostructures (TMFe-x) were successfully synthesized and used in an efficient sunlight-driven reduction towards Cr(VI) in a neutral aqueous media. Further, the prepared TMFe-x heterostructures exhibited higher photocatalytic activity when compared with those exhibited by pure TiO 2 and NH 2 -MIL-88B(Fe) under simulated sunlight irradiation. The optical TiO 2 modification content was determined to be 10 wt.% (TMFe-b), with 98.6% Cr(VI) being converted to Cr(III) within 35 min using ammonium oxalate as the hole scavenger at pH = 7. In neutral conditions, the kinetic rate constant (0.0878 min −1 ) was five times larger than the published values. Additionally, the photocatalytic performance of TMFe-b was maintained and Fe leaching was observed to be negligible after the completion of four reaction cycles. The superior photocatalytic property can be attributed to the high photoelectron-hole separation and migration efficiency. Subsequently, TMFe-b achieved Cr(VI) reduction under neutral conditions by capturing hydrogen from the water molecules or the hole scavengers. The photoelectrons and superoxide radicals were the main active species. Furthermore, TMFe-b was able to efficiently eliminate various pollutants through photocatalytic oxidation and reduction. This study suggests a novel strategy for the preparation of environmentally stable and efficient MOF-based photocatalysts to efficiently eliminate various pollutants. Further, there is a huge potential for the practical application of this technology to water purification .
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Yang Gao,Yuyang Wang,Yanlin Jiang,Chaojie Bai,Zuoqun Zhang,Yawen Zhao,Congjie Gao,Lixin Xue
To improve interface compatibility between ZIF-7 particles (PTs) and polyamide (PA) and reverse osmosis (RO) performance of thin film nano-composite (TFN) membranes, ZIF-7-NH 2 (x) particles (PTs) with different levels of -NH 2 substitution were synthesized by reacting Zn(NO 3 ) 2 with mixed ligand under different preparation conditions. The impact of their residual surface functional groups (SFGs) on the formation of inter-phase covalent bonds (ICBs) in PA separating layers were investigated relating to the inter-phase compatibility and salt rejection performance of the formed composite RO membranes. Doping ZIF-7-NH 2 PTs with ICBs could avoid the expansion of PA in acidic condition. Surprisingly high chemical stability was observed for ZIF-7-NH 2 PTs wrapped in the PA separating layers in TN membranes in the pH range of 2–13. TN(50)-0.15 membranes with strong ICBs showed 3 times higher water flux of 76 L·m −2 ·h −1 under 5.5 MPa at a high salt rejection of 98.7 %.
研究领域:
材料科学
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化学工程
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
HIGH PERFORMANCE POLYMERS
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2025
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IF 1.6
Zhiqing Liang,Zhongying Liu,Xiuyuan Wei,Hui Wu,Chanjuan Liu,Xiaohua Huang
Bifunctionalized NH2-UiO-66-CF3 nanofillers were successfully prepared by grafting - CF3 on NH2-UiO-66 via aldehyde-amine condensation reaction and applied to the preparation of 6FDA-ODA/NH2-UiO-66-CF3 mixed matrix membranes (MMMs). The successful introduction of -NH2 and -CF3 groups was verified by FT-IR, XRD, and XPS characterization, and the integrity of the crystal structure was ensured. Due to the presence of hydrogen bonding, NH2-UiO-66-CF3 showed good interfacial compatibility with the polymer matrix. Due to the introduction of the - CF3 group, the MMMs exhibited excellent thermal stability (T10% > 500°C, Tg = 300°C–305°C), hydrophobicity (contact angle of 92.96–97.71), and mechanical properties (tensile strength of 74–85 MPa). The gas separation performance tests showed that the MMMs exhibited significantly improved gas permeability and selectivity compared to the pure 6FDA-ODA membranes, which was attributed to the fact that the -NH2 and -CF3 groups provided more adsorption sites for gases. In particular, the PI/NUF(10) MMMs showed the best performance, with permeabilities of 42.71, 9.22, and 92.79 Barrer for CO2, O2, and He, respectively, which were 248%, 213%, and 173% higher than those of the pure membranes. Meanwhile, the selectivities of CO2/N2, O2/N2 and He/N2 were improved by 37%, 24%, and 8%, respectively. Close to the Robeson upper limit, demonstrating excellent gas separation potential.
研究领域:
材料科学
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化学工程
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膜技术
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气体分离
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纳米技术
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Ruixue Yan,Hao Guo,Zeyun Yang,Wenting Niu,Jianpeng Ma,Liping Peng,Mingyue Wang,Wu Yang
Alterations in guanine (GA) and adenine (AE) levels within the human body are intricately linked to overall health and daily physiological functions. Therefore, it is crucial to develop an accurate and sensitive sensor for quantifying the levels of GA and AE. In this present paper, a novel electrochemical sensor NH 2 -MXene@COF TA-DH /GCE was constructed by in-situ growing COF TA-DH with high crystallinity, good thermal stability and N-rich active centers based on Schiff base condensation reaction of 1, 3, 5-tris-(4-aminophenyl) triazine (TAPT) and 2,5-dihydroxyl-terephthalaldehyde (DHTA) on highly conductive NH 2 -MXene and then modifying it on the surface of the glass carbon electrode (GCE). The highly dispersed sandwich structure of NH 2 -MXene@COF TA-DH significantly increases the specific surface area and exposes a greater number of active sites. Benefitted from remarkable synergistic effect, the sensor exhibited excellent electrochemical catalytic activity and high sensitivity for GA and AE detection. The sensing platform was successfully used for simultaneous detection of GA and AE with wide linear ranges of 0.6–230 μM and 1–450 μM and low detection limits of 0.07 μM and 0.44 μM, respectively. This study expands applications of COFs and MXene in electrochemical biosensing platform and provides a general and valuable strategy for COFs-based electrochemical sensor construction for biomedical investigations
研究领域:
生物医学
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分析化学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Yuxin Yuan,Quanlan Liao,Tianxiang Zhao
Metal-organic frameworks (MOFs) have been hybridized with other functional materials, such as ionic liquids, covalent organic frameworks (COFs), and metallic nanoclusters, to fabricate composite materials. These composites possess the structural characteristics of their individual components and exhibit synergistic properties. In this work, we demonstrate the synthesis of core-shell structure UiO-66-NH 2 @PILs-x composite materials by encapsulating MOFs within ionic polymers (PILs) with varying thicknesses of PILs shell. These hybrid materials serve as bifunctional catalysts for the conversion of CO 2 into cyclic carbonates under solvent- and additive-free conditions through a synergistic catalytic effect facilitating the conversion of CO 2 into cyclic carbonates under solvent- and additive-free conditions through synergistic catalytic effect, exhibiting superior catalytic performance and excellent recyclability. This MOFs-based composite material provides a competitive approach for CO 2 catalytic conversion.
研究领域:
材料科学
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催化化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2020
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IF 7.489
Huijing Ma,Bing Yu,Qingping Wang,Gary Owens,Zuliang Chen
While Fe-based metal-organic frameworks (MOFs) can be used to remove antibiotics by adsorption, knowledge of how antibiotics are degraded by MOFs is still limited. In this study, one Fe-based MOF, NH 2 -MIL-88B was used to remove pefloxacin from aqueous solution via a combination of adsorption and Fenton-like oxidation. NH 2 -MIL-88B exhibited a high adsorption capacity for pefloxacin (41.37 mg·g −1 ), with >99% removal efficiency within 120 min based on Fenton-like oxidation. To better understand the mechanisms involved in integrated adsorption and Fenton-like oxidation, various advanced characterization techniques were used to monitor the changes in morphology and composition of NH 2- MIL-88B before and after removal of pefloxacin. Scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) all supported adsorption and Fenton oxidation of pefloxacin. In addition, the pefloxacin degradation products identified by LC-UV and LC-MS provided information on the potential adsorption-Fenton oxidation mechanism. These results suggested that NH 2 -MIL-88B has remarkably potential to be used in an integrated adsorption and Fenton-like process for the removal of antibiotics from aqueous solution.
研究领域:
环境科学
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化学工程
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
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2024
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IF 8.5
Xiaoyu Du,Gan Wu,Xilin Dou,Zhaoyang Ding,Jing Xie
Food prone to spoilage has a huge food safety hazard, threatening people’s health, so early detection of food spoilage is a continuous and urgent need. Herein, we developed a dual-mode response sensor, alizarin complexone@UiO-66-NH 2 , which can accurately detect pH. The sensor demonstrated significant changes in color from pale yellow to deep pink, while the fluorescence shifted from light blue to blue violet. Moreover, both UV absorption and fluorescence intensity showed a linear correlation with pH raging from 4.5 to 7.5. These results indicate that the sensor effectively responds to pH, making it suitable for detecting the freshness of perishable food. To put this into practice, we integrated the sensor with cellulose-based filter paper to determine the freshness of shrimp and beef, which was proved to be effective in assessing freshness. In the future, it can be combined with intelligent colorimetric and fluorescence instruments to achieve visual detection.
研究领域:
食品科学
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化学传感
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BIOSENSORS & BIOELECTRONICS
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2024
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IF 10.7
Yajun Gao,Suhui Xu,Ge Guo,Yajie Li,Wenyuan Zhou,Huaxiang Li,Zhenquan Yang
Herein, novel nanozyme mimics MoO 3 /MIL-125-NH 2 were reported and conjugated with bacteriophages as a new electrochemical probe for high sensitivity and specific electrochemical detection of staphylococcus aureus . The excellent peroxidase-like activity of MoO 3 /MIL-125-NH 2 composites was attributed to the integration of MIL-125-NH 2 with MoO 3 , which can boost the generation of superoxide radicals (O• 2 – ) and thus promote the oxidation of TMB in the presence of H 2 O 2 . In this work, two bacteriophages named SapYZU04 and SapYZU10 were isolated from sewage samples by using staphylococcus aureus YZUsa12 as the host. In comparison, MoO 3 /MIL-125-NH 2 @SapYZU04 was selected as a recognition agent. The DPV current declined linearly with staphylococcus aureus YZUsa12 concentration in the range of 10 1 −10 8 CFU mL −1 , with a low detection limit of 16 CFU mL −1 (S/N = 3). 20 strains including 13 host strains and 7 non-host strains were used to evaluate the selectivity of the proposed sensor. Regardless of the differences in the degrees of lytic performance for phage SapYZU04, all selected host strains can be screened with merely the same DPV current. Host spectrum-oriented bacteriophage sensing is of great importance for the practical application of bacteriophage-based biosensors in the future.
研究领域:
生物传感
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电化学检测
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微生物学
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产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Mazhar Khan,Zeeshan Akmal,Muhammad Mubashir Khan,Muhammad Tayyab,Seemal Mansoor,Muhammad Adnan Zeb,Amir Zeeshan,Ziwei Ye,Jinlong Zhang,Shiqun Wu,Lingzhi Wang
Metal-organic framework (MOF) based heterojunctions offer a promising strategy for CO 2 photoreduction, contributing to carbon neutrality and environmental remediation. However, the precise design and control of these heterostructures remain critical challenges. Herein, we report the precise construction of a heterostructure by integrating 2D ZnIn 2 S 4 nanosheets with NH 2 -MIL-125(Ti) for efficient CO 2 photoreduction in a sacrificial agent-free environment. A comprehensive investigation demonstrates robust interfacial interactions and work function differences between NH 2 -MIL-125(Ti) and ZnIn 2 S 4 , facilitating the formation of an interfacial electric field and enabling the construction of an S-scheme heterojunction. The directional migration of photogenerated charge carriers effectively suppresses their recombination, retaining the strong oxidative and reductive potential of the heterostructure components. In-situ infrared spectroscopy provides concrete evidence that the S-scheme heterojunction significantly enhances the formation of key intermediates, which are crucial for CO generation. The optimized NMT-5@ZIS achieves a CO yield of 17.30 umol g -1 h −1 without sacrificial agents, representing 8.6 and 6.6-fold improvements over pristine NH 2 -MIL-125(Ti) and ZnIn 2 S 4 , respectively. This work bestows an innovative insight into the construction of MOF-based S-scheme heterojunctions, opening new avenues for practical applications in energy storage and photocatalysis.
研究领域:
材料科学
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环境科学
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纳米技术
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催化
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能量转换
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
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2024
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IF 4.9
Xue Men,Rong Li,Aiwen Su,Yanli Zhang,Lian-Xun Gao,Chengxin Wu,Hongbin Wang,Wenrong Yang,Pengfei Pang
Protein kinase A (PKA) plays a significant role in the regulation of biological activities by the phosphorylation of the specific proteins or substrate peptides. The highly sensitive and reusable electrochemical biosensor has been developed to detect PKA activity based on the specific coordination between Zr 4+ and phosphate group. In this strategy, the specially designed substrate peptide can be anchored on the surface of gold electrode by Au-S bond. In the presence of adenosine triphosphate (ATP) and PKA, the substrate peptide is phosphorylated. Due to the large surface area of MOF and rich Zr 4+ active sites, signal molecule Thionine (Thi) can be absorbed into the cavity of NH 2 -Zr-MOF by the electrostatic interaction to form NH 2 -Zr-MOF@Thi signal probe. The phosphorylated peptide is linked to NH 2 -Zr-MOF@Thi probe because of the strong coordination interaction between Zr 4+ and phosphate group. Therefore, the number of Thi close to the electrode surface is increased and the response signal experiences amplification, markedly enhancing the sensitivity of the detection of PKA activity, which provides an excellent electrochemical sensing platform for PKA activity detection. The response signal of the electrochemical biosensor is proportional to the logarithm of PKA concentration, ranging from 0.05 U mL −1 to 100 U mL −1 , and the limit of detection of this biosensor for PKA is 0.017 U mL −1 when the signal-to-noise ratio is 3. In particular, the proposed method can selectively distinguish the target from other interferents, and can be used to screen potential small molecule inhibitors and detect PKA activity in complex cell samples. Therefore, the developed electrochemical biosensor can be used as a new way for the determination of PKA activity and the screening of its inhibitors in the future.
研究领域:
生物化学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Xiangtao Tang,Lihong Lu,Fang Yang,Xingyu Zhong,Hongfa Shi,Wenqing Zhang,Lingfan Zhang
The treatment of radioactive wastewater containing 90 Sr required advanced adsorbents to address the limitations of the recyclable usage. In this study, a UiO-66-NH 2 @Chitosan/Loofah Fiber Composite (UNCL) was synthesized using an impregnation strategy, enabling easy separation from the solution and efficient Sr 2+ removal. By integrating the good adsorption activity of UiO-66-NH 2 , interfacial modification capability of chitosan, and macrostructural advantages of loofah fiber, the composite achieved enhanced mass transfer efficiency and structural stability. UNCL achieved adsorption equilibrium within 120 min, demonstrating rapid and efficient strontium capture capability. The material demonstrated robust performance under alkaline conditions, and retained high efficacy in real river water and seawater environments. Adsorption behavior aligned with the Sips isotherm model (R 2 = 0.999) and pseudo-second-order kinetics (R 2 = 0.995) with maximum adsorption capacity of 7.64 mg/g, confirming monolayer chemisorption. Mechanistic investigations, supported by FT-IR and XPS analyses, revealed a synergistic mechanism involving ion exchange, surface complexation and electrostatic interactions at multiple active sites. UNCL maintained approximately 90 % removal efficiency after five adsorption–desorption cycles and enabled facile separation from aqueous solutions through simple mechanical retrieval. These results demonstrated that UNCL combined adsorption ability, reusability, and environmental adaptability, positioning it as a promising and practical solution for Sr 2+ remediation.
研究领域:
环境科学
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材料科学
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化学工程
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核技术
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水处理
✓ 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）