JOURNAL OF MEMBRANE SCIENCE
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2022
·
IF 10.53
Shuting Tian,Yang Bai,Shuangshuang Li,Zuoming Chen,Liyun Zhang,Hongjie Li,Peng Zhou,Yi He
Microsphere layers/nanofibrous membranes decorated with UiO-66-NH 2 as a metal-organic framework (MOF) were successfully obtained by one-step coaxial electrospinning. The coaxially spun dense microsphere/wire-like structure and UiO-66-NH 2 hydrophilic components with excellent hydration ability enabled the prepared membrane to have excellent static and dynamic adsorption capacity for dyes and oil-in-water emulsion separation performance (adsorption capacity >247 mg/g; separation efficiency >99%). What's more, the membrane can purify complex wastewater dynamically and efficiently (separation efficiency >99%). After the membrane was desorbed in ethanol and methanol, the reversible recovery rate was as high as 98%, indicating its excellent recyclability. In a word, the as-prepared membrane has broad prospects in the remediation of complex polluted water bodies containing dyes-oil.
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高影响因子
ADVANCES IN POLYMER TECHNOLOGY
·
2022
·
IF 2.502
Qing-Chun Chen,Yu Bang,Lu Li,Hui-Yu Deng
Owing to the specific porous structure which could provide additional passage channel for some molecules, metal organic frameworks are attractive candidates for enhancing permeability and selectivity of membranes in pervaporation, reverse osmosis, and gas separation. In this experiment, Ag@UiO-66-NH2 was introduced into polyamide separation layer by interfacial polymerization of triethylenetetramine and 1,3,5-benzenetricarboxylic acid chloride for nanofiltration. The results indicated that Ag@UiO-66-NH2 nanoparticles did endow the membranes with rapid diffusion pathways for water molecules. When the content of Ag@UiO-66-NH2 was 0.03 g, the prepared membrane (NF-Ag-3) showed high flux about 47.3 L·m-2·h-1 at 0.6 MPa, which is about 2-fold higher than that of polyamide membrane without Ag@UiO-66-NH2, while the MgSO4 rejection rate remained about 87.4%. The membrane also showed excellent antifouling properties, and the water flux recovery ratio was 95.6% after filtration BSA solution. When it was applied for 50 mg/L bisphenol A removal, the rejection rate reached 94.6%, and the flux is about 49.1 L·m-2·h-1. Moreover, Ag particles on UiO-66-NH2 rendered the membrane with good inhibition for Escherichia coli. The antibacterial rate of the membranes is above 95% when the loading of Ag@UiO-66-NH2 is more than 0.03 g.
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高影响因子
LANGMUIR
·
2022
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IF 4.331
Lan Ma,Yan Wan,Teng Wang,Yaling Liu,Ying Yin,Liyun Zhang
Developing the high-anti-fouling membrane has kept continuous attention in oil/water emulsion treatment. However, the majority of works on anti-fouling membranes mainly focused on low-viscosity oils, which greatly limited the development and application of a membrane to face the real crude oil wastewater. Inspired by the hydrophilicity of sodium carboxymethyl cellulose (CMC) and zirconium base metal–organic frame (Zr-MOF), an anti-oil-fouling CMC/UiO-66-NH2 composite membrane was constructed by a self-assembly method. Profiting from the hydrophilicity and micro-nanostructure of the CMC/UiO-66-NH2 layer, the obtained CMC/UiO-66-NH2 membranes displayed underwater superoleophobicity and desired oil resistance. It could display the effective separation capability with 1282 ± 62 to 6160 ± 81 L/(m2·h·bar) and above 99.08% toward the different light oil emulsions. More importantly, the CMC/UiO-66-NH2 membrane displayed ultralow crude oil adhesion behaviors toward the crude oil emulsions, which could achieve a considerably high flux (746 ± 60 to 5224 ± 87 L/(m2·h·bar)). Furthermore, electrostatic interaction and physical enwinding–wrapping between CMC and UiO-66-NH2 also endowed the composite membranes with outstanding stability. After immersing the as-prepared membranes into the harsh environments for 24 h, the membranes still maintained high underwater–oil contact angles (UWOCA > 155°) and separation ability (oil rejection was above 99.0%). Therefore, CMC/UiO-66-NH2 composite membranes could demonstrate promising prospects in real oily emulsion treatment.
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PubMed
高影响因子
ANALYST
·
2022
·Vol. 147
·期 17
·3867-3875
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IF 5.227
Fangfang Yu,Yihan Wang,Tengfei Liu,Xiaohui Liu,Hui Jiang,Xuemei Wang
Hypochlorite plays a vital role in biological systems and our daily life. The rapid and convenient detection of hypochlorite is imperative and significant for disease treatment and human health. In this work, EY/UiO-66-NH2 (EY = eosin Y) was prepared through a hydrothermal process and could be applied to the detection and bioimaging of hypochlorite as a self-calibrating sensing nanoprobe. EY/UiO-66-NH2 features two emissions at 432 nm and 533 nm, and the emission intensity of 533 nm is enhanced with increasing ClO− concentration. EY/UiO-66-NH2 could be utilized as a ratiometric fluorescence sensor of ClO−. The linear range of EY/UiO-66-NH2 towards ClO− is 0.1–200 μM and its detection limit is 46.4 nM. In comparison with previously reported probes for ClO−, EY/UiO-66-NH2 has the advantages of a wide linear range, low detection limit, turn-on fluorescence and ratiometric response. This work provides a new method for ClO− detection in living cells.
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PubMed
高影响因子
ChemistrySelect
·
2021
·Vol. 6
·期 14
·3370-3377
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IF 2.109
Kazem Karami,Ali Mardaniboldaji,Mohammad R. Rezayat,Parvaneh Bayat,Mohammad T Jafari
Graphical New UiO-66-NH 2 /Gly/GO nanocomposite solvothermally synthesised and characterized by techniques such as FTIR, XRD, EDAX, TGA, TEM and SEM. Nanocomposite has been exploited as an adsorbent in solid phase microextraction (SPME) method and also the pesticide chlorpyrifos as an organophosphorous pesticide is selected for the model compound. As for a determination system, Corona discharge ionization-ion mobility spectrometry (CD-IMS) has been employed. This paper seeks to produce UiO-66-NH 2 /Gly/GO nanocomposite, which is solvothermally synthesised by the “prefunctionalisation” approach using 2-aminoterephthalic acid as an organic linker in a Teflon lined autoclave and its linking to a graphene surface by glycine and finally characterized by methods such as FTIR spectrometer, Powder X-ray diffraction (XRD), energy dispersive X-ray analysis (EDAX), thermal stability measurement (TGA), transmission electron microscope (TEM), scanning electron microscope (SEM) and the Brunauer-Emmet-Teller (BET). UiO-66-NH 2 /Gly/GO nanocomposite has been exploited as an adsorbent in solid phase microextraction (SPME) method and also the pesticide chlorpyrifos as an organophosphorous pesticide is selected for the model compound. As for a determination system, Corona discharge ionization-ion mobility spectrometry (CD-IMS) has been employed. The nanocomposite capability in extracting the target analyte before and after the coating of the GO has been experimentally investigated. The IMS sensitivity has been strikingly increased in the course of using the GO as the nanocomposite coating. In order to increase the extraction efficiency and preconcentration of the analyte, both extraction temperature and time are scrutinized. All through this method, analysis factors are achieved as follows: linear dynamic range (LDR); 0.5-20.0 μg L −1 , correlation coefficient (R 2 ); 0.9992, the limit of quantification (LOQ); 0.5 μg L −1 , and limit of detection (LOD); 0.15 μg L −1 . On the whole, the proposed approach seems to be regarded as a successful method for analyzing the organophosphouros pesticide.
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高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2019
·
IF 4.978
Jiling Zhao,Chen Wang,Shixing Wang,Yang Zhou
A new adsorbent (MOFs-DHAQ) was prepared by functionalizing UiO-66-NH 2 with 1,8-dihydroxyanthraquinone to remove Pb(II) from wastewater. The optimum pH, adsorption kinetics and adsorption isotherms were studied. MOFs-DHAQ has a good removal rate for Pb(III) at pH 4. It takes only 30 min to reach maximum adsorption capacity about 213.3 mg/g. The experimental data conforms to the pseudo-secondary kinetics and the Freundlich models. The adsorption process belongs to multilayer chemical adsorption . Desorption and adsorption experiments indicate that the adsorbent can be recycled at least four times. The rising temperature favors the adsorption of Pb(II) on MOFs-DHAQ because the adsorption process is a spontaneous endothermic reaction. The interaction mechanism between Pb(II) and the reactive group is mainly electrostatic interaction and complexation. MOFs-DHAQ has excellent selectivity for removing Pb(II) from wastewater contains a variety of interfering ions. The calculated adsorption capacity ( Q ex ) of Pb(II) for column adsorption was 108.04 mg/g and was consistent with the Thomas model's adsorption capacity( Q Th ) about 109.63mg/g. Density functional theory calculations show that MOFs-DHAQ combines with Pb(II) through monodentate N atoms and bidentate O groups. MOFs-DHAQ has good application prospect in the removal of lead from wastewater.
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高影响因子
CERAMICS INTERNATIONAL
·
2019
·
IF 3.45
Guiliang Zhu,Sheng Feng,Jianying Chao,Wei Zheng,Cong Shao
A simple one-pot method was employed to synthesize C-dots modified TiO 2 nanosheets (NS)/UiO-66-NH 2 for enhancing photocatalytic activity. Anatase TiO 2 NS and UiO-66-NH 2 were closely combined and C-dots were well modified on their surfaces. The photocatalytic activities of catalysts were assessed through photodegrading ketoprofen (10 mg/L) under visible light. C-dots/TiO 2 NS/UiO-66-NH 2 degraded 90% of ketoprofen in 80 min, and owned the higher kinetic rate than TiO 2 NS (24 times) or TiO 2 NS/UiO-66-NH 2 (2.1 times). The results indicated that C-dots/TiO 2 NS/UiO-66-NH 2 exhibited the most superb visible-light photocatalytic activity. Besides, C-dots/TiO 2 NS/UiO-66-NH 2 showed good stability and reusability in four runs of degrading ketoprofen. The improved photocatalytic performance was caused by the heterostructure of TiO 2 NS and UiO-66-NH 2 and photoelectrical performance of C-dots, effectively absorbing visible light and promoting photoelectrons transfer.
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高影响因子
MICROCHEMICAL JOURNAL
·
2023
·
IF 4.8
Xiaohu Ma,Congcong Lv,Peiyu Jiang,Jingbo Geng,Yanli Guo,Yu Zhang,Yuchuan Liu,Yan Jin,Baoxin Li,Wei Liu
The trace acetone determination in breath can be regarded as a noninvasive method for diagnostic of diabetes. There is an urgent demand to develop a simple method for acetone detection which can be easily performed at home. Here, UiO-66-NH 2 @PEI with the appropriate aperture size combined with the hand-held sensor was used to construct the adsorption–desorption sensing platform for separation and enrichment of acetone in exhaled breath (EB). UiO-66-NH 2 @PEI can realize the selective adsorption, desorption and separation for acetone in EB. The flameless combustion hand-held sensor can sensitively respond to acetone in the range of 0.2–12.0 ppm and it can achieve the accurate determination of acetone content in EB of diabetic patients. The hand-held sensor is inexpensive, lightweight and easy to operate, which has great application prospects for the widespread use for diabetic patients in family life.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Shiwei Tian,Yaqi Zhang,Qiankun Sha,Tian Yang,Yan Huang,Xingxiang Zhang,Wei Wang,Na Han
Highly efficient treatment of oil-water emulsions in severe environments (organic solvents, strong acids) is recognized as a challenging subject. Polyphenylene sulfide (PPS) is an ideal membrane material with superior thermal stability as well as chemical resistance that is expected to settle this challenge. However, the hydrophobicity of PPS (h-PPS) membrane inherently prevents its efficient treatment of oil-in-water (O/W) emulsions. In this study, superhydrophilic modification of PPS substrates was achieved by in situ electrostatic self-assembly of hydrophilic Zr-MOFs to obtain UiO-66-NH 2 @h-PPS membranes. The introduction of UiO-66-NH 2 crystals constructed the micro/nanoscale hierarchical structure for the substrate, which transforms the PPS substrate from a hydrophobic to a superhydrophilic state (water droplets require only 0.6 s to be completely immersed in the membrane). Meanwhile, the UiO-66-NH 2 @h-PPS membranes gain under-water superhydrophobicity (the under-water oil contact angle exceeds 150° for toluene, hexane , dichloromethane , and carbon tetrachloride , of which toluene reaches 163.1°), thereby improving wettability selectivity and decreasing oil adhesion, permitting the fabricated UiO-66-NH 2 @h-PPS membranes to effectively separate different types of O/W emulsions. The UiO-66-NH 2 @h-PPS membranes acquire excellent permeate fluxes (for the surfactant-free toluene-in-water emulsion, it reaches up to 7638.1 L m −2 h −1 ) and separation accuracy (99.1% oil rejection). Moreover, the UiO-66-NH 2 @h-PPS membrane exhibited outstanding harsh environment resistance. Interestingly, the combination of UiO-66-NH 2 and h-PPS substrate was applicable to degrade the organic compound in water, and the degradation efficiency of the methylene blue achieved 85.7% under visible light within 120 min. In summary, loading Zr-MOFs onto h-PPS substrates provides a novel strategy for the efficient treatment of wastewater under complex conditions with great potential for practical applications.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 29
·13855-13865
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IF 3.3
Yong Cheng,Lin Deng,Dan Wang,Changchun Ji,Ying-Hua Zhou
The development of advanced catalysts is essential for efficient elimination of the emerging organic pollutants in water. Herein, Cu9S5 and Cu9S5@UiO-66-NH2 were prepared and both exhibited high Fenton-like photocatalytic activities for the degradation of organic contaminants. Removal efficiencies of 85% and 92% were achieved for Congo red (CR) and Rhodamine B (Rh B), respectively. It is found from active species trapping experiments and electron spin resonance (ESR) analysis that ˙O2−/h+ and ˙O2−/˙OH played key roles in the oxidation reaction of these two pollutants, respectively. The mechanisms were discussed on the basis of the cycles of Cu+/Cu2+.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Sijia Liu,Xifei Zhou,Changqing Yang,Chaohai Wei,Yun Hu
The extensive use of sacrificial agents and the low carrier separation and utilization efficiency remain important factors limiting the development of photocatalytic hydrogen production . We report a three-layered, dual-functional photocatalysts of Cu atomics@UiO-66-NH 2 (U6N)/ZnIn 2 S 4 nanosheets (ZIS), for the simultaneous production of photocatalytic hydrogen and degradation of organic pollutants . When common and highly toxic organic pollutants (phenolic compounds and antibiotics) were substituted for the sacrificial agents, Cu@U6N/ZIS exhibited superior sustained hydrogen production, approximately 28 times greater than that of pure ZIS. The experimental results suggested that the window size of U6N (< organic pollutants molecular size) separates the reaction sites of organic pollutants oxidation and reduction of hydrogen ions (H + ), thereby achieving spatial separation of redox sites. Besides, the structure of Cu@U6N/ZIS, which was anchored Cu within U6N and encapsulated by ZIS nanosheets, forming Z-type heterojunctions, achieved the control of the directional transfer of photogenerated electrons. And the coupled system can effectively enhance water quality by reducing the biological toxicity of the wastewater. This study suggests new avenues for environmental restoration and non-fossil fuel production.
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高影响因子
BIOCHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 3.9
Chang Liu,Xiaoyue Zhang,Yu Zhou,Lin Zhu,Chengyu Zhang,Xiaohui Yan,Shengping You,Wei Qi,Rongxin Su
The enzyme leakage in physical adsorption dramatically limits the application of immobilized laccase (Lac) in environmental treatment. Therefore, a leakage-proof Zr-based metal-organic framework (MOF) carrier, UiO-66-NH 2 (30), was constructed for the stable loading of Lac and efficient antibiotic biodegradation, which could fix the Lac inside the carrier rather than only adsorbed on the surface. Based on the aperture modulation strategy, the pore size distribution of MOFs at about 10 nm was significantly increased to match the diameter of Lac (7.6 nm), by which Lac@UiO-66-NH 2 (30) was successfully prepared with a high enzyme loading amount (275.96 mg/g) and high enzyme recovery (618 %). The immobilized Lac@UiO-66-NH 2 (30) could nearly 100 % biodegrade rifampicin and lincomycin in 6 min and 6 h, respectively, and after 8 times reuse, the degradation rates of antibiotics remained at 81.46 % and 76.12 %, which showed excellent reusability and stability. Overall, Lac@UiO-66-NH 2 (30) is expected to be an ideal candidate for pollution control.
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高影响因子
危险品化学品经营许可证（带存储）