JOURNAL OF SOLID STATE CHEMISTRY
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2023
·
IF 3.3
Dongping Huang,Peng Yong,Shuifa Shen
The sea urchin-like In 2 O 3 material was successfully synthesized through a simple hydrothermal method . Furthermore, the material underwent surface decoration without adding extra indium ions , resulting in the formation of a thin MIL-68(In) layer on the surface of In 2 O 3 . The obtained In 2 O 3 @MIL-68(In) retains the sea urchin-like morphology while acquiring an additional porous structure. Compared to pure In 2 O 3 , the composite exhibits a significant increase in specific surface area, leading to enhanced gas sensitivity. Notably, it demonstrates exceptional sensitivity towards formaldehyde gas, with a response of 18 at 100 ppm at 300 °C, up to six times more than pure In 2 O 3 . Moreover, In 2 O 3 @MIL-68(In) showcases remarkable selectivity and stability. These findings suggest that surface-modified MOF can enhance gas-sensitive properties.
研究领域:
材料科学
·
化学
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DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2022
·Vol. 169
·期 12
·127509
·
IF 4.386
Rui Kuang,Ning Deng,Fuying Dong,Yongling Ding,Xuan Kuang
Electrochemical enantiorecognition of Tryptophan (Trp) isomers using Cys@In2S3/GCE prepared by two steps of sulfidation and chiralization from MIL-68(In) is reported. The Cys@In2S3/GCE electrode shows highly selective, sensitive and quantitative analysis towards Trp enantiomers. This proposed chiral sensors could be considered for practical applications in the field of Trp related medical recognition.
研究领域:
生物化学
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分析化学
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材料科学
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DOI
高影响因子
CRYSTENGCOMM
·
2025
·
IF 2.6
Yuting Luo,Yiwei Sun,Haoxiang Wang,yuyang He,Mengqi Lu,Ruoyu Wang,Dongpo Xu
Due to the wide application of tetracycline (TC), there will be residues in human daily food. It is important to develop sensitive and rapid detection methods for TC in food. In this study, a rod-like NH2-MIL-68 (In) material was developed as a DNA probe binding site for rapid detection of TC. The aptamer and NH2-MIL-68 (In) were tightly bound by glutaraldehyde. After the addition of TC, the aptamer specifically adsorbs TC in the test sample, resulting in increased impedance on the electrode and decreased electrical signal. Under optimized conditions, the sensor had a wide detection range (0.001-100 μM) and a low detection limit (0.36 nM). In addition, the NH2-MIL-68 (In)@Apta sensor was successfully applied to TC residues in milk samples with recoveries of 84.33 % -117.22 %. The results showed that our work can provide a new strategy for the direct detection of TC in food samples.
研究领域:
食品科学
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分析化学
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材料科学
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DOI
高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2025
·Vol. 48
·期 5
·e70141
·
IF 2.8
Tao Bao,Jiao Long,Jina Wang,Meng Sun,Xinglong Zheng,Sicen Wang
Herein, we present a sensitive analytical method utilizing Materials Institute Lavoisier (MIL)-68(Al)-coated frosted glass rods (MIL-68(Al)@FGR) coupled with ultra-high-performance liquid chromatography for detecting trace tetracycline (TC) antibiotics in food matrices. The synthesized coating was thoroughly characterized through field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy analyses. Systematic optimization of critical parameters, including extraction time, sample pH, formic acid concentration, and desorption time achieved optimal extraction efficiency. The developed method exhibited a wide linear range (3–70 ng/mL) with low detection limits (0.1–0.3 ng/mL) for target analytes. Practical application to spiked food samples demonstrated satisfactory recoveries of 75.2%–115.1% across milk, chicken, and egg matrices, accompanied by precise relative standard deviations of ≤8.4%. The MIL-68(Al)@FGR-based approach shows exceptional resistance to matrix interference and detection sensitivity, establishing an effective strategy for monitoring TC residues in complex food samples.
研究领域:
分析化学
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食品安全
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DOI
PubMed
高影响因子
Nano Research
·
2017
·Vol. 10
·期 10
·3543-3556
·
IF 7.354
Pi Yunhong,Li Xiyi,Xia Qibin,Wu Junliang,Li Zhong,Li Yingwei,Xiao Jing
Efficient separation and transfer of photogenerated electron/hole as well as enhanced visible light absorption play essential roles in photocatalytic reactions. To promote the photocatalytic reduction of Cr(VI), a toxic heavy metal ion, multiwalled carbon nanotube (MWCNT) was introduced as an electron acceptor into NH 2 -MIL-68(In). This led to the growth of a willow leaf-like metal-organic framework (MOF) on an MWCNT backbone forming MWCNT/NH 2 -MIL-68(In) (PL-1), which showed a highly efficient transfer of photogenerated carriers. Moreover, MWCNT incorporation introduced more mesopores for Cr(VI) diffusion and enhanced the visible light adsorption without lowering the conduction band position. As a result, the photocatalytic kinetic constant of PL-1 was found to be almost three times higher than that of the parent NH 2 -MIL-68(In). Thus, growing MOFs on MWCNTs provides a facile and promising solution for effective remediation of environmental pollution by utilizing solar energy. This work provides the first example of using MWCNT/MOF composites for photocatalytic reactions.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Nanoscale
·
2023
·Vol. 15
·期 5
·2425-2434
·
IF 6.7
Mengxi Tan,Chengye Yu,Hua Zeng,Chuanbao Liu,Wenjun Dong,Huimin Meng,Yanjing Su,Lijie Qiao,Lei Gao,Qipeng Lu,Yang Bai
Metal–organic frameworks (MOFs), as a class of semiconductor-like materials, are widely used in photocatalysis. However, the limited visible light absorption and poor charge separation efficiency are the main challenges restricting their photocatalytic performance. Herein, the type II heterojunction MIL-68(In)@ZIS was successfully fabricated by in situ growth of ZnIn2S4 (ZIS) on the surface of a representative MOF, i.e. MIL-68(In). After composition optimization, MIL-68(In)-20@ZIS shows an extraordinary photocatalytic hydrogen production efficiency of 9.09 mmol g−1 h−1 and good photochemical stability, which far exceeds those of most photocatalysts. The hierarchical loose structure of MIL-68(In)-20@ZIS is conducive to the adsorption of reactants and mass transfer. Meanwhile, a large number of tight 2D contact interfaces significantly reduce the obstruction of charge transfer, paving the way for high-perform photocatalytic hydrogen evolution. The experimental results demonstrate that the MIL-68(In)@ZIS heterojunction achieves intensive photoresponse and effective charge separation and transfer benefiting from unique charge transport paths of a type II heterojunction. This study opens an avenue toward MOF-based heterojunctions for solar energy conversion.
研究领域:
材料科学
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光催化
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可再生能源
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纳米材料
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太阳能转换
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Wenliang Zhang,Yan Wang,Timing Fang,Xiao Tang,Zhezheng Ding,Yunhai Han,Ran Guo,Pengfei Qi,Xiaomin Liu
Metal-organic frameworks (MOFs) as photocatalysts are promising candidates for environmental wastewater treatment owing to their tunable crystal structure, well-ordered donor–acceptor interface, and exceptional porosity. However, precise control over size and morphologies of MOFs to enhance adsorptive and photocatalytic performance is still a considerable challenge. Herein, the MIL-68(In)–NH 2 (MN) MOFs with special acicular structure are customized by a facile method, in which the growth of crystal nuclei is inhibited and regulated by pyridine. The formation mechanism of MN with different morphologies and size is introduced, and their photocatalytic activities are systematically explored by degrading model pollutants tetracycline (TC) and dyes under visible light irradiation. Benefiting from its high specific surface area and the exposed large lattice spacing facet, the wool-ball morphology MN (MN-W) with surface acicular nanostructure presents an optimum photocatalytic performance compared to other MN morphologies. The MN-W also exhibits excellent adsorption capacity, remarkable cyclic stability, and good practical organic wastewater treatment capability. The possible photodegradation mechanism and pathways are elucidated, demonstrating that h + is the primary reactive species, followed by •OH and •O 2 – radicals, responsible for the degradation of TC. This work is anticipated to tailoring design and modulate MOF photocatalysts for boosting the photocatalytic performance towards organic effluents remediation.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2020
·
IF 3.573
Qingqing Hou,Xiyi Li,Yunhong Pi,Jing Xiao
Photocatalytic conversion of CO2 into fuel and value-added chemicals as a promising method has been applied recently to ease energy- or environment-related crises. Herein, we construct an In2S3@NH2-MIL-68(In)@In2S3 (denoted as SMS(In)) sandwich homologous heterojunction via a controllable in situ metal–organic frameworks (MOF) sulfuration process. The improved photoreduction activity mainly lies in the effective charge transfer and separation through a homogeneous interface, enhanced CO2 adsorption and mass transfer, and plentiful reactive sites. Benefiting from this unique hollow homologous heterojunction, SMS(In)-7 obtains a CO generation rate as high as 11.23 μmol g–1 h–1 with visible-light irradiation, nearly 3 times enhancement over that of pure MOF-derived In2S3. This work provides a novel insight into the utilization of MOF-based platform for an efficient atomically heterojunction design.
研究领域:
材料科学
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环境科学
·
化学工程
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2016
·
IF 3.15
Tongtong Han,Caifeng Li,Xiangyu Guo,Hongliang Huang,Dahuan Liu,Chongli Zhong
A series of SiO 2 @aluminum-MOF(MIL-68) composites with different SiO 2 loadings have been synthesized by a simple and mild compositing strategy for high-efficiency removal of aniline. As evidenced from SEM and TEM images as well as the particle size distribution , the incorporation of SiO 2 can improve the dispersity of MIL-68(Al) in composites, and result in the smaller particle size than that of pristine MIL-68(Al). Besides, the adsorption of aniline over SiO 2 , MIL-68(Al), the physical mixture of these two materials, and SiO 2 @MIL-68(Al) composites was investigated comparatively, demonstrating a relatively high adsorption capacity (531.9 mg g −1 ) of 7% SiO 2 @MIL-68(Al) towards aniline. Combining the ultrafast adsorption dynamics (reaching equilibrium within 40 s) and great reusability, 7% SiO 2 @MIL-68(Al) shows excellent adsorption performance. This indicates that the SiO 2 @MIL-68(Al) composites possess great potential applications as a kind of fascinating adsorbent in water pollution protection.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
高影响因子
Nature Communications
·
2026
·
IF 18.1
Lv Guoliang,Zhang Linjuan,Luo Yuanyuan,Zhu Jianqiu,Wu Jilong,Qin Li,Zhang Yanlin,Zhang Zheng,Tan Pengwei,Duan Guotao
Simultaneously achieving chemiresistive gas sensors with high selectivity, sensitivity, and stability remains a significant challenge. In this study, inspired by the H 2 S-specific catalytic enzymes in biological systems, we construct an amorphous unsaturated-ligand MIL-68(Fe) 3D MOF via in situ thermal induction. Without the introduction of extrinsic catalytic or conductive components, this MOF modification strategy creates unsaturated Fe atoms within the framework itself. These atoms function dually as catalytic and conductive sites, thereby overcoming the inherent low conductivity of conventional 3D MOFs and enabling the direct construction of chemiresistive sensor for room-temperature molecular olfactory sensing. The targeted water-adsorption-coordinated catalytic mechanism bypasses the limitations of traditional oxygen adsorption processes to achieve unprecedented comprehensive performance, including fingerprint-level selectivity (against 29 interfering gases), superior sensitivity coefficient (~83/ppm), ultra-low measured lower limit (1 ppb), rapid gas sensing response/recovery characteristics (~30 s/73 s), and excellent long-term stability at room temperature.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Jianwang He,Hu Meng,Yan Xu,Liang Feng
NO 2 is one of the most important air pollutant gases for the environment and human health. H 2 is seen as the next generation of clean energy to promote sustainable development. However, sensitive detection of NO 2 at room temperature is still a major challenge, and reliable H 2 sensors are also scarce. Metal oxide semiconductor (MOS) gas sensors are advantageous for detecting gas. Hence, we synthesized the unique hexahedral hollow mesoporous In 2 O 3 (h-In 2 O 3 ) derived from MIL-68 (In). The formation process and properties of h-In 2 O 3 were analyzed. The surface of h-In 2 O 3 is rich in hydroxyl groups , which are active sites for NO 2 adsorption at room temperature. Increasing working temperature up to 160 °C enables effective sensing reaction with H 2 . Based on different temperature-dependent gas sensing mechanisms, the h-In 2 O 3 sensor exhibits ultrasensitive response values of 400 towards 100 ppb NO 2 at room temperature (24 °C) and of 17.99 towards 10 ppm H 2 at 160 °C. In addition, the h-In 2 O 3 sensor exhibits reliable linear response, low theoretical detection limit of 1.8 ppt and 23 ppb for NO 2 and H 2 , excellent selectivity, repeatability and long-term stability. The synergistic effect of the unique structure, larger specific surface area , and abundant adsorbed oxygen plus oxygen vacancy contribute to the excellent gas sensing performance of the h-In 2 O 3 sensor. This study provides a promising strategy for the development of bifunctional gas sensors.
研究领域:
材料科学
·
环境科学
·
传感器技术
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Yufei Chen,Luyao Li,Ying Wang,Siqi Wan,Conghui Liu,Xingang Kong,Jianfeng Huang,Changqing Liu,Wenjie Huang,Lixiong Yin
Solar-driven photocatalytic hydrogen evolution represents a promising strategy, yet constructing photocatalysts that simultaneously deliver high activity and efficient visible-light utilization remains challenging. In this work, an Fe-ion-doped metal–organic framework, MIL-68(Fe), was synthesized and employed as substrate template for in-situ growth of ZnIn₂S₄ nanosheets. Subsequent one-pot synthesis yielded hollow tubular MIL-68(Fe)/ZnIn₂S₄ composite uniformly coated with ZnIn₂S₄ nanosheets, effectively mitigating severe stacking inherent to pure ZnIn₂S₄. Characterization confirmed successful Fe-ion doping, which significantly enhanced visible-light absorption. The optimal composite achieved photocatalytic hydrogen evolution rate of 10.04 mmol·g −1 ·h −1 , representing 9.84-fold enhancement over pristine ZnIn₂S₄. Density functional theory calculations revealed that interfacial Fe O and in O bonds facilitate built-in electric field formation within [ZnS₄] layers, confirming successful S-scheme heterojunction construction. This unique structure preserves photogenerated charge carriers with stronger redox potentials, thereby substantially boosting overall photocatalytic activity. This study offers novel approach for photocatalyst modification and demonstrates synergistic combination of ion doping with S-scheme heterojunction engineering as highly promising research direction
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高影响因子
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