MICROCHEMICAL JOURNAL
·
2022
·
IF 5.304
Zhizhou Liu,Tong Wang,Liang He,Xueyan Nan,Xuming Sun,Pengli Bai
Bacillus anthracis, an extremely dangerous bacterium which can cause pulmonary anthrax and be used as biochemical weapon agent, can be detected by the detection of its major biomarker 2, 6-pyridine dicarboxylic acid (DPA). Herein, we reported the solvothermal synthesis of a non-luminescent NH 2 -BDC-Eu-MOF using Eu 3+ and 2-aminoterephthalic acid (NH 2 -BDC). The emission of amino ligand and Eu 3+ ions are absent in ethanol while the addition of DPA could recover both emission at 460 and 624 nm respectively. Thus this MOF can act as a dual emission ‘‘turn-on’’ probe for DPA detection. The detection limits (LOD) of this DPA probe are about 0.8 μM in ethanol and 0.36 μM in water, which are much lower than an infectious dosage of bacillus anthracis spores (60 μM) for human being. In order to monitor DPA levels more conveniently, we developed a one-to-two decoder logic gate operation, which can determinate DPA via color discrimination.
研究领域:
生物化学
·
材料科学
·
医学检测
✓ 已验证
产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2024
·
IF 4.5
Linlin Yu,Ruoyu Chen,Qian Jia
Oily wastewater, especially oil-water emulsions, has caused severe environmental damage. It is urgent to develop a simple, efficient superhydrophobic and superoleophilic material to address this issue. In this work, a multifunctional sponge based on MOF was proposed. The hydroxy-assisted method was employed to prepare MOF-5 with metal coordination centers. Subsequently, octadecylphosphonic acid (OPA) was used to hydrophobically modify MOF-5 to prepare stable and hydrophobic OPA-MOF-5. Polydimethylsiloxane (PDMS) with low surface energy was employed as the adhesive, and the hydrophobic OPA-MOF-5 was loaded onto the polyurethane (PU) sponge to obtain the stable superhydrophobic OPA-MOF-5@PDMS@PU with a WCA of 155.9°. The produced modified sponge exhibited high sorption capacity and oil-water separation efficiency, with a sorption capacity of 26.7 (petroleum ether)-85.6 (chloroform) g/g and a separation efficiency of over 99 %. It has also shown satisfactory emulsion purification and flame retardancy capacities.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2019
·
IF 14.229
Yunhong Pi,Shuo Jin,Xiyi Li,Shi Tu,Zhong Li,Jing Xiao
Constructing advanced heterojunction structures is an effective approach to improve light utility and enhance photogenerated charge separation and transfer for solar energy conversion. Herein, we reported a MWCNT@MOF-derived In 2 S 3 hollow tube heterostructure via facile MOF sulfidation process, significantly boosting its photocatalytic degradation performance of tetracycline (TC) under visible light irradiation. The MWCNT bonds to the In 2 S 3 hollow tube strongly to construct an effective heterojunction, as illustrated in TEM and Raman spectroscopy. The 0.3%-MWCNT@MOF-derived In 2 S 3 exhibited the highest photocatalytic activity for visible-light-driven TC degradation, achieving ˜100% degradation efficiency, with its apparent reaction rate constants 3–5 times higher than that of the pure MOF-derived hollow In 2 S 3 and traditional In 2 S 3 bulk. The boosted visible-light-driven degradation efficiency was attributed to the synergy between electron acceptor of MWCNTs for enhanced separation of charge carriers and active center of MOF-derived In 2 S 3 hollow tube with shorter transfer distance of charge carriers, which not only promotes the carrier transfer and inhibits the recombination rate effectively, but also improves the visible light response. Such MOF-derived visible-light-active heterostructures thus provide a novel insight into the development of highly efficient photocatalyst for a wide usage.
研究领域:
材料科学
·
环境科学
·
光催化
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Bo Yue,Zhongwei Pang,Yang Yu,Jianfei Wu,Jiafu Qu,Jundie Hu,Dan Tian,Jianzhang Li,Yahui Cai
The environmental pollution caused by the discharge of oily wastewater and printing and dyeing wastewater is becoming more and more serious. Therefore, it is necessary to find an efficient method to separate oil/water emulsions and remove organic dyes from water simultaneously. However, the traditional separation membranes are usually very expensive and easy polluting the environment. Therefore, how to prepare high-efficiency separation membrane from low-cost, green renewable materials remains a huge challenge. In this study, ethylenediaminetetraacetic acid (EDTA) modified metal–organic framework (MOF-808) nanoparticles were introduced into the wood substrate to construct a 3D wood/MOF-808-EDTA membrane with efficient water purification performance (oil/water emulsion separation and organic dye removal). Due to the introduction of hydrophilic MOF-808-EDTA nanoparticles, this novel membrane can effectively separate stable oil-in-water emulsions and remove organic dyes from water. The prepared wood/MOF-808-EDTA membrane has a high separation efficiency (more than 99.9 %) and permeation flux (1698 ± 15.85 L·m −2 ·h −1 ). The removal efficiency of organic dyes is more than 94 % with the permeation flux 1360 ± 2.54 L·m −2 ·h −1 . More importantly, the separation efficiency (oil/water emulsion) remained above 99.9 % and the dye removal efficiency was still above 90 % after 10 cycles. Additionally, the wood/MOF-808-EDTA membrane also has good mechanical/chemical stability and anti-fouling properties. This work opens a new approach for the development of functional biomass material membranes for sewage purification.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
·
2022
·Vol. 69
·期 5
·831-839
·
IF 1.753
Tong Yu,Bin Wang,Li-Ping Yu
In this work, a novel pH-responsive hybrid hydrogel namely MOF/PC hydrogel was prepared by incorporating metal–organic framework CDs@UiO-66(OH) 2 into the matrix of photonic crystal hydrogel. MOF/PC hydrogel could display colorful structure colors under visible light and emit blue fluorescence under UV light owing to the stop-bond effect of photonic crystal and fluorescence emission capacity of CDs@UiO-66(OH) 2 , respectively. Benefiting from these two optical phenomena, MOF/PC hydrogel could work as a dual-mode color-changing sensor, in structure color mode and fluorescence mode, for the sensing of pH. When incubating in aqueous solutions with different pH values, MOF/PC hydrogel could adjust its structure color to the corresponding one ranging from green to pink in 10 s, and this visible color-changing can be used to determine the approximate pH values of the sample by naked eyes without any assistance of instruments. As for the fluorescence mode, the fluorescence intensity of MOF/PC hydrogel showed a good linear relationship with pH value in the range of 3.0~7.0, and it can be used to determine the pH value of aqueous solutions quantitatively. Moreover, the as-prepared sensor is reusable and can be applied to the pH sensing of real water samples.
研究领域:
材料科学
·
化学传感器
·
光学材料
✓ 已验证
产品关联
DOI
高影响因子
KOREAN JOURNAL OF CHEMICAL ENGINEERING
·
2024
·Vol. 41
·期 6
·1665-1678
·
IF 2.9
Liu Yanyan,Wang Zhiheng,Li Xin,Gao Ruiyao,Sun Jiong,Liu Jiankun,Yao Songdong
To investigate the potential utilization of MOF templates in hydrodesulfurization (HDS) of large sulfur-containing compounds, MOF-derived Ni 2 P was prepared and characterized by XRD, TG, SEM, TEM, XPS and Raman. The findings indicate that MOF-derived Ni 2 P catalyst exhibits significantly enhanced Hydrodesulfurization (HDS) activity compared to conventional unsupported Ni 2 P. A modified pyrolysis and phosphiding condition allowed the stacking of central Ni atoms to be aggregated loosely, and morphology of MOF-derived Ni 2 P can be controllably transmitted from polyhedral to petal-like. A lower pyrolysis temperature tends to reduce density of Ni aggregates and cluster size of Ni 2 P(111), thereby facilitating the phosphiding of Ni aggregates and enhancing the catalytic activity of MOF-derived Ni 2 P in HDS process. Increasing the duration time of pyrolysis at lower temperatures does not accelerate the aggregation of particles, but makes petals on surface of MOF-derived Ni become thinner and eventually disappear, until coral-like nanosphere aggregates with uniform size are formed. The gradually elimination of MOF framework renders nickel aggregates more susceptible to phosphiding. The collapse of pore structure of MOF template can impact HDS activity of MOF-derived Ni 2 P. Prolonging pyrolysis time causes the spacing between Ni 2 P clusters to diminish, thereby significantly decreasing reactivity of Ni 2 P-400-4-275 compared to Ni 2 P-400-2-275 in DBT–HDS.
研究领域:
材料科学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 7
·4528-4540
·
IF 4.682
Chen Mingyan,Zhang Yao,Chen Jie,Liu Yucheng,Li Lingli,Du Guoyong
The porous material MOF-199 with a large specific surface area is widely used in the field of adsorption, but the single MOF material is not stable enough and the adsorption performance needs to be improved, so MOFs materials are often modified by combining with other materials. The composite material Fe 3 O 4 -ATP/MOF-199 (FAM) was prepared by solvothermal method combined with MOF-199, attapulgite (ATP) and Fe 3 O 4 . It was used in the static adsorption experiment of model oil to study the desulfurization performance, including the influence of external conditions such as adsorption time, temperature and the mass ratio of model oil to adsorbent on adsorption capacity. The structure and morphology of the adsorbent were characterized by XRD, FT-IR, SEM, VSM and BET. The experimental results show that the doping of attapulgite reduces the particle size of magnetic MOF-199 and makes the adsorbate closer to the active center of the adsorbent so as to improve the adsorption efficiency.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2019
·
IF 1.795
Jianhua Liu,Yumei Wang,Hao Guo,Songjie Fan
A novel heterogeneous membrane-MIL-121/118 were successfully synthesized on the surface of macroporous glass frits by increasing the content of aluminum nitrate in the starting solution. For the gas mixtures of H 2 /CO 2 , H 2 /CH 4 and H 2 /N 2 , the membrane exhibits permselectivity towards H 2 . Specifically, the separation factors are 10.7, 8.9 and 7.5 respectively with average H 2 permeance of 7.83 × 10 −8 mol·m −2 ·s −1 ·Pa −1 . As far as we know there is no report of any heterogeneous MOF membranes and the diversity of membrane structure certainly facilitates its versatility.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Catalysts
·
2022
·Vol. 12
·期 4
·371
·
IF 4.501
Minghao Zhou,Fei Ge,Jing Li,Haihong Xia,Junli Liu,Jianchun Jiang,Changzhou Chen,Jun Zhao,Xiaohui Yang
Lignin is an attractive renewable source of aromatics with a low effective hydrogen to carbon ratio (H/Ceff). The catalytic hydrodeoxygenation (HDO) of lignin-derived model compounds is a key strategy for lignin upgrading. In this work, the HDO of guaiacol, a typical lignin-derived compound, was carried out over metal–organic framework (MOF)-derived Ni-based catalysts. A monometallic Ni-MOF catalyst and different ratios of bimetallic NiMo-MOF catalysts were synthesized by a hydrothermal process, followed by a carbonization process. Among these catalysts, Ni3Mo1@C exhibited an excellent catalytic performance, affording a guaiacol conversion of 98.8% and a cyclohexanol selectivity of 66.8% at 240 °C and 2 MPa H2for 4 h. The addition of Mo decreased the particle size of the spherical structure and improved the dispersion of metal particles. The synergistic effect between Ni and Mo was confirmed by various means, including ICP, XRD, SEM, TEM, and NH3-TPD analyses. In addition, the effect of the reaction temperature, time, and H2pressure during the HDO process is discussed in detail.Keywords:guaiacol;hydrodeoxygenation;Ni-based bimetallic catalysts;MOF
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
APPLIED CLAY SCIENCE
·
2023
·
IF 5.6
Haibin Yang,Junzhen Guo,Liang Chu,Zhi Huang,Zhaohui Liu,Liyan Wang,Zhaokun Wang,Mu Yang,Ge Wang
Utilizing natural, abundant, and eco-friendly materials to facilitate the industrial application of nano-sized MOF particles is of utmost importance, since these nanoparticles possess high activity but difficult to recovery. Herein, benefiting from the negatively charged vermiculite , dispersed nano-sized Fe-MOF particles were successfully in-situ grown on the surface of vermiculite nanosheets (VNs) via a simple solvothermal method. The construction of the composites improved the exposure of organic dye to active sites, resulting in a remarkable performance of Fe-MOF@VNs-4 towards photo-Fenton degradation of RhB , with a k value of 0.096 min −1 and an activity of 0.581 mmol g −1 h −1 , significantly higher than that of pure VNs and Fe-MOF, surpassing most reported MOF composite catalysts. The excellent adsorption ability of Fe-MOF@VNs, along with the presence of divalent iron in vermiculite, greatly enhanced catalytic performance. Mechanistic investigations revealed that VNs facilitate the separation of photoinduced carriers excited from Fe-MOF, indicating a synergy effect between Fe-MOF and VNs. Overall, this work provides a simple and effective strategy to design large-scale and commercially available catalysts for water treatment , and also offers a promising alternative for the industrial application of nano-sized MOF particles.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Junyan Tang,Dehua Wang,Wen Qin,Siyu Fang,Ting Xu,Jiming Huang,Mi Tang,Zhengbang Wang
Nanofiller/polymer composite electrolytes have been regarded as promising candidates for all-solid-state lithium-metal batteries. However, well-dispersion of nanofillers in polymer composite electrolytes is still a great challenge. Herein, we report an in-situ solvent-free processable method to the MOF/polymer composite electrolyte with highly dispersed and defected MOF nanoparticles. The high MOF dispersion without aggregation not only suggests the uniform composite structure with high utilization of MOF nanofillers but also induces the formation of continuous and uniform Li + transport paths. The defected MOF structure is favorable to adsorb anions and promote Li + transportation. As a result, Such MOF/polymer electrolyte demonstrates enhanced electrochemical performance and the assembled LiFePO 4 /Li full cells also exhibit both the excellent rate capability and cycling stability. This study proposes a simplified and efficient methodology for the highly dispersed MOF/polymer composite electrolytes for high performance solid-state batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2021
·
IF 5.455
Xiangtao Qin,Taotao Qiang,Lu Chen,Shaoting Wang
MOF-5 is an emerging semiconductor material with a great potential in photocatalytic wastewater treatment . However, its inherent deficiencies, such as the narrow range of photo-response, the fast recombination of photoinduced carriers and the unstable structure, largely limit its further application. In this work, super biocompatible N-doped carbon quantum dots (N-CQD) derived from the green precursor, coconut shells, were in situ grown on MOF-5 via a facile solvothermal method to construction of 0D/3D N-CQD/MOF-5 photocatalyst with an enhanced photoreduction ability. A sustainable and pollution-free preparation process of N-CQD/MOF-5 photocatalyst was delivered and biomass waste resource was effectively utilized via this method. This well-designed photocatalyst with the optimized 1% N-CQD loading presented a considerable photoreduction rate of Cr (VI), which was 2.5 times higher that of pure MOF-5. It also possessed a strong structural stability and reusability even after multiple tests. The boosting photocatalysis activity could be attributed to the doping of N-CQD, who not only act as an electron acceptor to separate the photoexcited electrons and holes effectively, but also play a vital role as a photosensitizer to improve the visible-light absorption. Furthermore, the influence of activation methods on the photocatalytic activity of MOF-5 were also investigated theoretically. For the purpose of clarifying the potentially photocatalytic mechanism of N-CQD/MOF-5 in photoreduction Cr (VI), a series of tests involving photoelectrical characterizations and fluorescence spectroscopy were executed. Therefore, this study provides an innovative photocatalytic system for an enhanced photoreduction performance of Cr (VI) of MOF-5.
研究领域:
环境科学
·
材料科学
✓ 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）