鑽石舞台

題目：A micron-sized Co-MOF sheet to activate peroxymonosulfate for efficient organic pollutant degradation

作者：Fu-Xue Wang, Zi-Chen Zhang, Xiao-Hong Yi, Chong-Chen Wang*, Peng Wang, Chao-Yang Wang and Baoyi Yu

摘要：A Co-MOF with a 2D morphology (BUC-92) was prepared, which exhibited outstanding rhodamine B (RhB) degradation performance via peroxymonosulfate (PMS) activation. RhB was degraded completely within 10 min in the presence of 0.2 g L−1BUC-92 and 0.2 mM PMS, much higher than that using our previously reported MOF BUC-67 (54.4%) under the same conditions, whose composition was similar to that of BUC-92. A related mechanism was proposed. A fixed bed reactor was built to further evaluate the potential application of BUC-92.

期刊信息：CrystEngComm

DOI:10.1039/D2CE00791F

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題目：Customization of functional MOFs by a modular design strategy for target applications

作者：Yaguang Peng, Qiang Tan, Hongliang Huang*, Qinggong Zhu, Xinchen Kang*, Chongli Zhong, Buxing Han*

摘要：Herein, we propose a versatile 「functional modular assembly」 strategy for customizing MOFs that allows installing the desired functional unit into a host material. The functional unit could be switched according to different applications. MOF-808, a highly stable Zr-MOF containing dangling formate groups, was selected as a host material for demonstration. Functional molecules with carboxyl connectors can be directly inserted into MOF-808 to form functional modular MOFs (FM-MOFs) through single substitution, while for those without carboxyl connectors, a pre-designed convertor was grafted firstly followed by the functional molecules in a stepwise manner. A series of tailor-made FM-MOFs were generated and show excellent performance toward different applications, such as adsorption, catalysis, fluorescent sensing, electrochemistry, and the control of surface wettability. On the other hand, the functional units on the FM-MOFs can switch freely and completely via full interconversion, as well as partly to construct multivariate MOFs (MTV-MOFs). Therefore, this strategy provides a benchmark for rapid customization of functional MOFs for diverse applications that can realize the rapid modular design of materials.

期刊信息：Chem. Synth.

DOI:10.20517/cs.2022.15

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題目：A boric acid functional multi-emission metal organic frameworks-based fluorescence sensing platform for visualization of gallic acid

作者：Lei Pan, Xingzhen Li, Qipeng Zhang, Shihao Xu, Liang Yang, Fan Yang*, Changlong Jiang*

摘要：Gallic acid (GA) is widely applied as antioxidant in food, beverages, health-care products, as well as medicines, quantification detection of GA is essential for human health and quality control in food, drugs and health-care products. Herein, we designed a portable sensing platform by utilizing multi-emission Europium Metal-Organic Frameworks (Eu-MOFs) fluorophore which constructed by the coordination polymerization of europium ions (Eu3+) with 3,5-Dicarboxybenzeneboronic acid (BBDC) for the visual detection of GA. The Eu-MOFs fluorophore displayed red fluorescence with the emission peaks at 454 nm and 615 nm under 270 nm excitation. With the addition of GA, the special covalent structure of the borate ester formed between the phenolic hydroxyl group of benzene ring with the hydroxyl group of the boric acid. The red emission at 615 nm decreased, while the blue emission at 454 nm increased gradually. The highly colorimetric fluorescence provides a significant color change from red to blue and furtherly improves the detection precision, resulting in a visual and rapid detection of GA with a limit of detection (LOD) of 22.0 nM. Furthermore, the Eu-MOFs fluorescent probe applied for visual and quantitative detection of GA combined with smartphone color recognizer in tea and fruit juice samples with the recovery range of 88.34–101.16 %, and the detection results were consistent with high performance liquid chromatography (HPLC) results, which suggest an effective strategy to monitor the food additives for food safety and health guarantee.

期刊信息：Chem. Eng. J.

DOI：10.1016/j.cej.2022.138283

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題目:Home-made multifunctional auxiliary device for in-situ imaging detection and removal of quinclorac residues through MOF decorated gel refills

作者：Wenwen Jia, Ruiqing Fan*, Jian Zhang*, Ke Zhu, Shuang Gai, Huimin Nai, Haoqi Guo, Jingkun Wu, Yulin Yang*

摘要：Pesticides bring a rich crop production for the agriculture, while also cause many controversies about the potential problems about overuse. Portable devices possessing detection and decontamination of pesticide residues present in the environment are badly needed to the safety of public health. Herein, two novel two-dimensional (2D) zinc-based organic frameworks (Zn-MOFs), {Zn(Htbia)2·H2O}n (Zn1) and {[Zn(tbia)·H2O]·H2O}n (Zn2), have been successfully prepared based on a asymmetric flexible ligand 5-((4′-(triazol-1-yl)benzyl)oxy)isophthalic acid (H2tbia). The twist of 「–CH2– and –O–」 centers endow double layer structure Zn2 high stability and abound open metal sites. Eco-friendly and recoverable Zn2@ZIF-8@SA gels were fabricated by in-situ growing Zn-MOFs onto sodium alginate substrates and employed for fluorescent detecting and removing pesticides from the environment simultaneously, which exhibit a low limit of detection (LOD) of quinclorac (QNC), 2,6-dichloro-4-nitroaniline (DCN), thiabendazole (TBZ) are 0.08 μM, 0.09 μM and 0.37 μM, respectively and a high removal capacity of QNC about 142.1 mg·g−1. Furthermore, the integrated detection platform Zn2@ZIF-8@SA is developed into a portable, simple, non-invasive sensor test box for visual detection of pesticide residues on plants and fruits.

期刊信息：Chem. Eng. J.

DOI：10.1016/j.cej.2022.138303

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題目：Amidoxime-Functionalized Zeolitic imidazolate Frameworks with Antimicrobial Property for the Removal of U(VI) from Wastewater

作者：Kexiao Sang, Douchao Mei, Yudan Wang*, Lijia Liu*, Huan Lia, Guoxing Yang, Fuqiu Ma, Chunhong Zhang, Hongxing Dong

摘要：The removal of U(VI) from wastewater is an arduous technological task wherein biofouling caused by microorganisms severely depletes the relevant properties of adsorbents. Herein, the zeolitic imidazole frameworks dubbed ZIF-90 were functionalized with amidoxime via the production of a diaminomaleonitrile intermediate to manufacture a highly efficient U(VI)-adsorbing material with antibacterial properties called amidoxime-appended ZIF-90 (ZIF-90-A). The crystal and pore structures of ZIF-90 and its modified materials were characterized by FT-IR, XRD, SEM, XPS and BET. ZIF-90-A has a superior uranium-uptake capacity (490.2 mg/g) at pH 5, which is close to the pH of wastewater. At the same time, ZIF-90-A also exhibited outstanding antimicrobial properties. Values for the minimum inhibitory concentration (MIC) of ZIF-90-A were measured to be 125 and 250 μg/mL against Staphylococcus aureus and Escherichia coli, respectively. In addition, ZIF-90-A displayed good selectivity for the adsorption of UO22+; moreover, the uranium-uptake capacity of ZIF-90-A did not exhibit an obvious reduction when the adsorbent was subjected to five adsorption–desorption cycles. These results suggest that ZIF-90-A is a viable choice for the efficient removal of U(VI) from nuclear wastewater.

期刊信息：J. Environ. Chem. Eng.

DOI：10.1016/j.jece.2022.108344

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題目：Generating Metal-Organic Frameworks (MOFs) from Photovoltaic Modules for Wastewater Remediation

作者：Huu Khue Pham, Ying Sim, Michaël Carboni, Daniel Meyer, Nripan Mathews*

摘要：Upcycling enables the recycling efforts of E-waste to be more feasible and economically viable. Photovoltaic (PV) energy adoption has increased drastically over the years and is expected to become a mainstream energy source for the future due to its sustainability. However, waste management remains a problem as the PV panels gradually reach their end-of-life and start piling up. Many recycling strategies have been executed, but upcycling efforts to form high-value products from these PV panels are underexplored. In this paper, we report three different synthetic routes to generate metal-organic framework (MOF), MIL-53(Al) (Matériaux de l′Institut Lavoisier (MIL)), with the polymeric backsheet and aluminum that can be derived from solar panels. The synthesized MOFs have been evaluated in terms of their morphologies, thermal stability, crystallinity, and specific surface areas. Brunauer-Emmett-Teller (BET) surface areas of 1004 m2g-1to 1231 m2g-1were recorded across the synthesized MOFs. The MOFs were evaluated for their ability to adsorb commonly used harmful dyes, specifically cationic dye Methylene Blue and anionic dye Methyl Orange. The adsorption performances on MB and MO of as-synthesized MOFs were determined to be ranging from 190.1 to 262.5 mg g-1and 244.5 to 296.7 mg g-1respectively, demonstrating the potential of upcycling solar panels waste to valuable metal-organic framework for wastewater remediation. The findings pave the way for utilising solar panel electronic waste as a valuable resource for upcycled applications.

期刊信息：J. Environ. Chem. Eng.

DOI：10.1016/j.jece.2022.108346

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題目：Synthesis and characterization of amino functionalized bimetallic metal-organic frameworks as peroxymonosulfate activator for water purification: Performance and mechanistic studies

作者：Huanxuan Li*, Yucheng Lou, Junting Zheng, Liya Su, Shun Lu, Chen Xu, Jingang Huang, Qingwei Zhou, Junhong Tang*, Mingzhi Huang

摘要：The importance of new water purification technology for maintaining clean water resources and a high quality of life is self-evident. In this study, amino functionalized bimetallic metal-organic frameworks (NH2-MIL-101(FeCo)) were prepared to activate peroxymonosulfate (PMS) for removal of organic pollutants from water. The structure, morphology, and physicochemical properties of as-prepared NH2-MIL-101(FeCo) were comprehensively evaluated by X-ray diffraction, scanning electron microscopy, N2adsorption-desorption isotherms, and X-ray photoelectric spectroscopy. Degradation tests were performed to study effects of PMS concentration, catalyst dosage, initial pH, and common substances on the orange G (OG) removal. The acidic and alkaline conditions promoted the formation of mesoporous structures in NH2-MIL-101(FeCo) and enhanced the mass transfer processes to remove OG. 100% of OG was removed through a rate constant of 0.0711 min-1within 45 min in NH2-MIL-101(FeCo)−2/PMS/OG system, where1O2, •SO4−, and •OH played pivotal contributions in the OG removal. The catalytic activity of NH2-MIL-101(FeCo) originated from unsaturated metal sites of Fe(II) and Co(II). This work demonstrates a feasible strategy towards the synthesis of functional MOFs for removal of organic contaminants.

期刊信息：J. Environ. Chem. Eng.

DOI：10.1016/j.jece.2022.108272

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題目：Green synthesis of MOF-808 with modulation of particle sizes and defects for efficient phosphate sequestration

作者：Yu Tao, Baogang Yang, Fengyan Wang, Yanghao Yan, Xianyong Hong, Haihua Xu, Mingzhu Xia*, Fengyun Wang*

摘要：In this work, a facile and green method is applied to synthesize hydrophilic MOF-808(Zr) and modulate its defect content and particle size using different amounts of iron nitrate (denoted as F) to obtain serial XF-MOF-808 (「X」 implied the dosage of used F). The development of additional adsorption sites and the fine-tune of pore and particle size based on MOF-808 significantly improved phosphate adsorption performance. In particular, the 0.5F-MOF-808 shows excellent adsorption capacity (305.5 mg/g) and rapid diffusion rate (37.51 mg/g·min0.5) for phosphate at 298 K and initial pH = 6.5, outperforming pristine MOF-808 and most previously reported adsorbents. 0.5F-MOF-808 possesses a wide pH tolerance, outstanding reusability and excellent selectivity for phosphate adsorption from simulated wastewater, verified in environmental implication and regeneration experiments. Phosphate loaded on the adsorbent can be converted to struvite for agricultural fertilizer via a simple crystallization process. Compared to MOF-808, the exceptional sorption performance of 0.5F-MOF-808 is supported by decreased internal diffusion limitation, enlarged pore size and the development of new adsorption sites, which can be proved by advanced characterizations and batch adsorption experiments. This work presents a promising modification strategy of MOF materials for phosphate adsorption and recovery.

期刊信息：Sep. Purif. Technol.

DOI：10.1016/j.seppur.2022.121825

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題目：Rapid and facile synthesis of Au nanoparticle-decorated porous MOFs for the efficient reduction of 4‑nitrophenol

作者：Congyi Hu, Changping Yang, Xue Wang, Xiaoyan Wang, Shujun Zhen, Lei Zhan, Chengzhi Huang*, Yuanfang Li*

摘要：The reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with less toxicity and easier biodegradable is a promising strategy for industrial wastewater treatment. Herein, we developed a rapid and facile method for loading gold nanoparticles into the surface of NH2-MIL-101(Fe) (the carrier MOFs) obtained Au@NH2-MIL-101(Fe) with great structural stability and superior catalytic activity. The as-prepared Au@NH2-MIL-101(Fe) nanoparticles can absolutely reduce 0.1 mM 4-nitrophenol to 4-aminophenol in 20 s. The well-dispersed Au NPs on interface of NH2-MIL-101(Fe) provided highly dense active sites and the stable mesoporous structure of the carrier MOFs made the substrate 4-NP closer to the active center, leading to the improvement of the catalytic reduction efficiency. In addition, the composite membranes obtained from Au@NH2-MIL-101(Fe)-60 could treat for high concentration of 4-NP (2 g/L). This kind of nanoparticles not only lays the foundation for the development of novel catalysts, but also provides a practical and efficient method for industrial 4-NP wastewater treatment.

期刊信息：Sep. Purif. Technol.

DOI：10.1016/j.seppur.2022.121801

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題目：Different decorated ZIF-67 adsorption performance towards methamphetamine revealed by theoretical and experimental investigations

作者：Fengjiao Song, Shurui Cao, Zhenghong Liu, Hongtao Su, Zhiqiong Chen*

摘要：Metal-organic framework (MOF) materials, which have been deemed as effective adsorbents for removing emerging contaminants, suffered from difficult separation that limited their application in water treatment. Two different decorated ZIF-67 multifunctional adsorbents have been successfully fabricated by anchoring ZIF-67 on diverse magnetic substrates. The comparative study combining a series of adsorption experiments and structural characterization analyses was facilitated to explore the adsorption performance of two adsorbents (MrGO/ZIF and MZIF). The better adsorption capacity of MrGO/ZIF for methamphetamine (MAMP) was observed. For the introduction of reduced graphene oxide (rGO), ZIF-67 nanocrystals showed stratified multidimensional distribution on rGO, and formed a stepped pore structure. Relatively large pores of MrGO/ZIF were beneficial for the transport and adsorption of MAMP in aqueous phase. The adsorption of MAMP could be described by the Langmuir isotherm and pseudo-second-order kinetic model, and adsorption process was spontaneous and endothermic. Theoretical investigation in combination with analyses of the XPS characterization illustrated that the H-bonding interaction between the Co-OH and -NH of MAMP, and π-π interaction among the heteroaromatic rings in adsorbent and the benzene ring of MAMP was the mainly contribution of driving MAMP adsorption on MrGO/ZIF. Summarily, the excellent adsorption properties of MrGO/ZIF coupled with facile separation and sustainability make MrGO/ZIF remove MAMP more efficiently from water, which provide an insight for contaminated water treatment, and psychoactive substances monitoring.

期刊信息：J. Mol. Liq.

DOI：10.1016/j.molliq.2022.119950

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題目：Novel ZnO nanorods/Bi2MoO6/MIL-101(Fe) heterostructure immobilized on FTO with boosting photocatalytic activity for tetracycline degradation: Reaction mechanism and toxicity assessment

作者：Mahboube Hajiali, Mehrdad Farhadian*, Shahram Tangestaninejad

摘要：The new ZnO nanorods/Bi2MoO6/MIL-101(Fe) photocatalyst is synthesized by applying the solvothermal method and is characterized by XRD, FTIR, SEM, EDX, TEM, UV-vis DRS, PL, BET, and TGA analyses. The optimal molar composite ratio is ZnO: Bi2MoO6: MIL-101(Fe)= 2: 1: 0.52 with a 2.3 eV bandgap which has significantly enhanced photocatalytic activity observed in visible light irradiation (420 nm) for tetracycline degradation. The type-II/type-I heterojunction is applied for the photocatalyst reaction mechanism based on the experimental data concerning pollutant concentration = 20 ppm, catalyst dosage = 0.38g/L, pH = 7, irradiation time = 90 min, optimum conditions, tetracycline removal efficiency, and TOC at 96.1 and 87.4%, respectively. The catalyst is immobilized on the FTO glass by applying the spin coating method, where tetracycline removal efficiency and TOC are obtained at 91.7% and 84.7%, respectively. The toxicity test is run by applying the growth of Escherichia coli (E. coli) bacteria and confirms the non-toxicity of the intermediate products during the photocatalytic process.

期刊信息:Appl. Surf. Sci.

DOI:10.1016/j.apsusc.2022.154389

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題目：A porous Fe-based porphyrinic metal-organic framework for highly effective removal of organic azo-dye

作者：Saba Daliran, Mostafa Khajeh*, Ali Reza Oveisi*

摘要：With the rapid development of the global dye industry, a series of environmental problems affecting the ecosystem and human health has been perceived. In this work, a porous porphyrin catecholate iron-based metal-organic framework (PorphCat-Fe) has been prepared and evaluated for the first time for adsorptive removal of azo-dye methyl orange (MO) pollutant from aqueous media. Consequently, the various MO adsorption factors using PorphCat-Fe MOF were studied and optimized. PorphCat-Fe was able to remove about 98% of the pollutant from the water within 20 min in the batch experiments with maximum adsorption capacity of 232.5 mg g-1. Under optimum conditions, the limit of detection (LOD) was found to be 0.8 μgL-1. The MOF could maintain its adsorption efficiency toward MO in the real samples. The combination of electrostatic attractions, hydrophobic and π-π interactions, and iron-organic coordination bonding make PorphCat-Fe able to show the superior MO adsorption capacity. Remarkably, the removal efficiency of MO was nearly unchanged after five regeneration sequences on PorphCat-Fe. This effort offers the ability for application of MOFs beyond metal-carboxylate linkers in wastewater remediation.

期刊信息：Appl. Organomet. Chem.

DOI:10.1002/aoc.6830

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題目：Modification strategies on 2D Ni-Fe MOF-based catalysts in peroxydisulfate activation for efficient organic pollutant removal

作者：Minjun Liu, Ying Liu*, Xinru Liu, Chengcheng Chu, Ducheng Yao, Shun Mao*

摘要：This study reports several modification strategies to optimize and enhance the performance of two-dimensional (2D) metal organic frameworks (MOFs)-derived catalysts in peroxydisulfate (PDS) activation. The raw 2D Ni-MOF and 2D Ni-Fe-MOF without modification show poor catalytic activities for PDS activation and high metal ion leaching. The carbonization of 2D MOF can increase the activity of the catalyst but cannot solve the metal leaching problem. The further acid treatment of carbonization products can further improve the catalytic activity and decrease the metal ion leaching. The in-situ growth of 2D MOF on graphene oxide (GO) support with subsequent carbonization and acid treatment offers the best performance in PDS activation for organic pollutant removal with low metal ion leaching. Compared with other PDS systems, the Ni-Fe-C-acid/GO system displays much lower catalyst and PDS dosages for p-chloroaniline degradation. This study presents new insights in the modification strategies of 2D MOF-based catalysts in PDS activation.

期刊信息：Chin. Chem. Lett.

DOI:10.1016/j.cclet.2022.07.051

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張紫晨，女，北京建築大學環境工程專業2021級碩士研究生。主要從事金屬-有機骨架材料及衍生物/複合物的設計與可控制備及其環境應用研究。