JOURNAL OF HAZARDOUS MATERIALS
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2024
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IF 12.2
Zhixiang Xu,Dongshan Chen,Xingyu Duan,Yuning Chen,Caiqing Li,Siyuan Li,Yitao Ma,Bin Huang,Xuejun Pan
Dissolved inorganic and organic phosphorus is a major factor in triggering the eutrophication of water bodies. At present, a novel Zr 4+ cross-linked sodium alginate encapsulated in Ce-UIO-66 microspheres (Zr-SA/Ce-UIO-66) was prepared and systematically characterized. Its ability for capture of phosphate and glyphosate in their single and binary systems has been investigated comprehensively. Results showed that Zr-SA/Ce-UIO-66 exhibits excellent phosphate adsorption, achieving 92 % removal and a maximum adsorption capacity of 125 mg P/g at 313 K. Diversified mechanisms, including electrostatic attraction, ligand exchange and hydrogen bonding, have cooperatively participated in phosphate removal. Interestingly, in phosphate and glyphosate mixed solutions, the presence of phosphate significantly enhanced the removal of glyphosate for the formation of complexes between phosphate ions and the adsorbent. And that was similar to the presence of glyphosate in phosphate adsorption. Simulated wastewater experiments demonstrated the adsorbent’s practical application in water contaminated with both organic phosphorus and glyphosate composites and its potential for recycling and reuse.
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DESALINATION
·
2024
·
IF 8.3
Xiaowen Huo,Yingying Zhao,Zhaojing Jing,Jian Wang,Haitao Wang,Na Chang
One of the main approaches to improve the permeability of membranes is the preparation of PA layers with nanostructures based on metal organic framework (MOF) materials. However, the interaction between MOF additives and PIP/TMC monomers and the mechanisms affecting the interfacial polymerization process have not been elucidated. In this study, the adsorption conformation between the two-phase monomers and UiO-66 (UiO-66-TFA) was established by density functional theory (DFT) calculations based on Lewis acid-base theory. The results showed that the hydrogen bonding force between UiO-66 (UiO-66-TFA) with defect structures and PIP (−199.62 kcal/mol) was significantly stronger than that between UiO-66-TFA and TMC (−26.39 kcal/mol). Moreover, two PA layers with ridged and granular morphologies were prepared by dispersing UiO-66/UiO-66-TFA in the water/organic phase to influence interfacial polymerization, using UiO-66-TFA nanoparticles as additives. Among them, the PA layers showed more pronounced morphological transformation and excellent separation properties when UiO-66-TFA was used as an additive in the aqueous phase . The representative ridge-like nanostructured nanofiltration membrane showed a pure water flux of 27.51 L·m −2 ·h −1 and 98.8 % retention of Na 2 SO 4 . This study provides a new idea for the preparation of PA layers with different surface nanostructures based on the IP reaction of nano-additives.
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JOURNAL OF POWER SOURCES
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2024
·
IF 8.1
Guoqian Xu,Tianrui Chen,Haibang Zhang,Jianhong Yin,Yan Qian,Yan Xiong,Keyan Hu,Hao Gao,Hedong Jiang,Pingchun Guo,Jiake Li,Yanxiang Wang,Shijin Yu,Hua Zhu
Metal-organic frameworks (MOFs) have garnered significant attention in the field of Lithium-ion batteries due to their porous periodic network properties. However, this is a challenge to design high-performance solid-state electrolytes reasonably. Herein, a small nano-sized MOF Small-UiO-66 is reported, which has high surface area and mesoporous properties that can effectively inhibit PEO matrix crystallization. The presence of Small-UiO-66 accelerates the dissociation of lithium salts, which disrupts the ordered arrangement of the PEO chain segments. The abundant Lewis acidic sites on the surface of Small-UiO-66 facilitate the construction of abundant Li + transport channels and promote Li + conduction. Furthermore, the smaller nano-sized increase the interfacial wettability with lithium metal, which promotes the uniform diffusion of Li + and inhibits the growth of lithium dendrites. The results indicate that 0.1 Zr-CSE exhibits high ionic conductivities of 6.94 × 10 −4 S/cm at 60 °C. Based on 0.1 Zr-CSE, the Li||Li symmetric cell can operate stably for 1200 h at a current density of 0.1 mA/cm 2 , and the LFP||Li cell also achieves a high initial capacity of 147.65 mAh·g −1 at current densities of 0.5C. This work presents a novel approach for preparing high-performance solid-state Lithium-ion batteries using MOFs as fillers for polymer solid-state electrolytes.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Dongfang Hou,Qian Zhu,Junjie Wang,Min Deng,Xiu-qing Qiao,Bojing Sun,Qingwen Han,Ruan Chi,Dong-Sheng Li
Optimized fabrication of Z-scheme photocatalyst based on MOF materials offers sustainable energy generation and environmental improvement due to their attractive properties. The Z-scheme heterojunctions consisting of UiO-66 cubes covered with Zn 0.5 Cd 0.5 S nanoparticles were fabricated by a facile solvothermal method. Thanks to the Z-scheme carrier transport under simulated sunlight irradiation, UiO-66@Zn 0.5 Cd 0.5 S exhibited enhanced photocatalytic performance of H 2 generation synchronized with organic pollutant degradation in fluoroquinolone antibiotic wastewater. Synergistically, the highest comprehensive performance was obtained in ciprofloxacin solution. The H 2 yield reached 224 μmol∙ g −1 ∙ h −1 and simultaneously the removal efficiency was up to 83.6 %. The degradation pathways revealed that the process of piperazine ring cleavage and decarboxylation also generates H protons, further promoting the production of H 2 . Therefore, the effective spatial separation and transfer of the photoinduced carriers are attributed to the good band structure, large specific surface area, and cooperative reduction and oxidation reactions of UiO-66@Zn 0.5 Cd 0.5 S, resulting in significant photocatalytic activity. The toxicity assessment of antibiotics and intermediate products during the photocatalytic reaction also verifies the reduction of environmental risk. This study highlights a promising way to expand the application of the MOFs-based photocatalyst in clean energy conversion coupling with water remediation.
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JOURNAL OF SOLID STATE CHEMISTRY
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2024
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IF 3.2
Shipeng Liao,Muhammad Arif,Xingyue Qian,Guangyu He
The development of hybrid heterostructure photocatalysts with enhanced visible light absorption capacity holds significant importance in environmental remediation. However, the challenge persists in exploiting strong visible-light responsive photocatalysts with both high efficiency and stability. Herein, we successfully synthesized a hybrid Z-scheme heterojunction of Bi 2 O 3 and UiO-66-NH 2 (Bi 2 O 3 /UiO-66-NH 2 ) through a simple hydrothermal route. The visible light photocatalytic performance of Z-scheme Bi 2 O 3 /UiO-66-NH 2 heterojunction is systematically evaluated for persistent antibiotic tetracycline hydrochloride (TC-HCl) both in the clean and real water matrix. All heterojunction catalysts exhibit superior photodegradation capabilities compared to pristine Bi 2 O 3 and UiO-66-NH 2 . The optimal ratio of the two components heterojunction (BUN-150), in particular, demonstrates the highest removal efficiencies for TC-HCl (95 %) within a 90-min timeframe. This remarkable photocatalytic performance is credited to the Z-scheme charge transfer occurring at the interface of Bi 2 O 3 and UiO-66-NH 2 in Bi 2 O 3 /UiO-66-NH 2 heterojunction. The active species experiments and electron paramagnetic resonance analyses are conducted to identify the active reactive species during the TC-HCl degradation (·OH, h + , and ·O 2 − ), and a precise photocatalytic degradation mechanism is explained. Additionally, the photodegradation intermediates of TC-HCl are detected using the HPLC-MS analysis to explain the degradation pathways of TC-HCl. This research paves the way for the development of novel Z-scheme Bi 2 O 3 -based heterojunction catalysts for outstanding photocatalytic applications.
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JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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2024
·Vol. 171
·期 4
·047503
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IF 3.1
Zhengjie Zhang,Yiheng Zhang,Yangchun Li,Yurong Wang
An electrochemical sensor for the simultaneous detection of magnolol (MAG) and honokiol (HON) was constructed based on the metal-organic framework, UIO-66-NH2, and electroreduced carboxylated graphene oxide (ErGO-GOOH). The UIO-66-NH2@ErGO-COOH coating was characterized by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy. Cyclic voltammetry was applied to investigate the electrochemical behavior of MAG and HON on UIO-66-NH2@ErGO-COOH/GCE. The electroanalytical method for the simultaneous determination of MAG and HON was established using linear sweep voltammetry. Under optimal experimental conditions, a linear range of 0.05 ∼ 8 μM and limits of detection of 16 and 7.0 nm for MAG and HON, respectively, were obtained. The sensor exhibited good repeatability, reproducibility, stability and anti-interference ability. The sensor was successfully applied to the simultaneous detection of MAG and HON in urine and serum samples with good recovery.
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TALANTA
·
2024
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IF 5.6
Yuting Zhou,Xiang Chen,Xianlu Lei,Meiqi Huang,Miaomiao Ma,Jian Zeng,Fuyan Zhang,Shuang Li,Qi Sun,Tao Le
Zearalenone (ZEN), a prevalent mycotoxin found in cereal crops, poses a significant threat to food safety and human health. To address this issue, there is an urgent need for rapid, sensitive, and cost-effective detection methods. In this study, we developed a novel bimodal aptasensor based on NH 2 -UiO-66@MB composites for ZEN detection. Methylene blue (MB) was encapsulated within NH 2 -UiO-66 nanoparticles to enhance fluorescence intensity, and the ZEN aptamer was attached to NH 2 -UiO-66 via Zr–O–P bonds and Coulombic forces to create a gating effect. In the presence of ZEN, the aptamer bounded to ZEN, triggering a conformational change that released MB, resulting in decreased fluorescence intensity and absorbance. Under optimal conditions, the bimodal aptasensor exhibited wide linear ranges (2.5–300 ng/mL for colorimetry and 0.125–200 ng/mL for fluorescence) and low limits of detection (1.16 ng/mL for colorimetry and 0.03 ng/mL for fluorescence). Furthermore, the aptasensor demonstrated high specificity and reproducibility, with recovery rates ranging from 97.43 % to 103.71 % in spiked cereal products. These findings highlight the potential of the developed bimodal aptasensor as a novel tool for the rapid, accurate, and cost-effective detection of ZEN in cereal products, contributing to improved food safety monitoring.
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ACS Applied Materials & Interfaces
·
2024
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IF 8.3
Ying Gao,Qinqin Chen,Xinhao Shen,Shuang Yao,Zhiwen Jiang,Sanjian Ma,Hailiang Yang,Juanhong Li,Zixia Lin,Xin Liu
Both the sluggish kinetics of Fe(II) regeneration and usage restriction of H2O2 have severely hindered the scientific progress of the Fenton reaction toward practical applications. Herein, a reduction strategy of activated hydrogen, which was used to simultaneously generate H2O2 and accelerate the regeneration of ferrous in a Fenton-like reaction based on the reduction of activated hydrogen derived from H2, was proposed. Two types of composite catalysts, namely, Pd/UiO-66(Zr)-2OH and Pd@UiO-66(Zr)-2OH, were successfully prepared by loading nano-Pd particles onto the outer and inner pores of UiO-66(Zr)-2OH in different loading modes, respectively. They were used to enhance the reduction of activated hydrogen. The characterization results based on the analysis of scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy revealed that the materials were successfully prepared. By using a trace amount of ferrous iron and without adding H2O2, trimethoprim (C0 = 20 mg·L–1), as a target pollutant, could be nearly 100% degraded within 180 min in the reaction system composed of these two materials. The cycle of iron and the self-generation of H2O2 were verified by the detection of ferrous H2O2 in the system. Density functional theory calculation results further confirmed that the pore-filled Pd0 NPs, as the main catalytic site for Pd@UiO-66(Zr)-2OH, could produce H2O2 under the combined action of hydrogen and oxygen. The Pd@UiO-66(Zr)-2OH system had excellent stability after multiple applications (at least 6 cycles), all of which resulted in 100% removal of trimethoprim. The degradation efficiency of the Pd/UiO-66(Zr)-2OH system for TMP gradually decreased from 97 to 80% after six cycles. The results of electron paramagnetic resonance combined with classical radical burst experiments revealed the degradation pathways in the reaction system with hydroxyl radicals and singlet oxygen as the main reactive oxygen particles.
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RENEWABLE ENERGY
·
2024
·
IF 9
Wenli Zhang,Jifei Liu,Hongwei Gu,Cheng Pan,Yifei Long,Qunpeng Cheng,Guozhi Fan
The metal-organic framework materials ZIF-8 and UiO-66-NH 2 , synthesized by hydrothermal methods, were characterized in detail and combined to catalyze the transfer hydrogenation of 5-hydroxymethylfurfural (5-HMF) to 2,5-di(hydroxymethyl)furan (2,5-DHMF) using isopropanol as the hydrogen source. The ZIF-8/UiO-66-NH 2 catalyst mixture exhibited abundant Lewis acid-base sites and a hierarchical multiporous structure with a large specific surface area (564.0 m 2 /g). The conversion of 5-HMF reached 98.2 %, and the selectivity and yield of 2,5-DHMF were 96.2 % and 94.5 %, respectively. The recycling performance of ZIF-8/UiO-66-NH 2 was also investigated, and the conversion of 5-HMF and selectivity of 2,5-DHMF significantly decreased to 78.4 % and 79.1 % in the second run, respectively. The loss of −NH 2 groups was found to be the main reason for the decrease in activity. However, the catalytic activity of the recovered catalyst can be almost completely restored by the addition of a small amount of fresh UiO-66-NH 2 and ZIF-8, and the conversion of 5-HMF and selectivity of 2,5-DHMF were increased to 89.4 % and 95.5 %, respectively. In the proposed reaction mechanism, Lewis acid-base sites play important roles and exhibit a synergistic catalytic effect in the selective conversion of 5-HMF to 2,5-DHMF.
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CARBOHYDRATE POLYMERS
·
2024
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IF 10.7
Yuan Gao,Peng He,Jingwen Yang,Bo Liu,Qiong Zhang,Qi Zhou,Hanlu Xu,Rongli Jiang,Zhongran Dai,Shaorong Wang
We focus on optimizing acid-base interactions and hydrogen bonding networks to achieve enhanced proton conductivity under low relative humidity (RH) and high temperature. By functionalizing UiO-66-(COOH) 2 with glutamic acid (Glu) and lysine (Lys), we generate Glu-UiO-66-(COOH) 2 and Lys-UiO-66-(COOH) 2 . These modified materials are subsequently incorporated into chitosan (CS) to produce the composites Glu-UiO-66-(COOH) 2 @CS and Lys-UiO-66-(COOH) 2 @CS. The successful incorporation of amino acids and cross-linking between -COOH and -NH 2 groups in the composites, confirmed by FTIR and PXRD analyses, significantly enhances the structural integrity and durability by strengthening the network, and reducing polymer chain mobility. Proton conductivity assessments reveal that Lys-UiO-66-(COOH) 2 @CS-7 exhibits a remarkable conductivity of 0.022 S/cm at 100 % RH and 363 K, outperforming Glu-UiO-66-(COOH) 2 @CS-7. The lower activation energy ( E a ) of 0.28 eV for Lys-UiO-66-(COOH) 2 @CS-7, compared to 0.336 eV for Glu-UiO-66-(COOH) 2 @CS-7, highlights the significant improvement in intramolecular acid-base interactions and hydrogen bonding. Furthermore, Lys-UiO-66-(COOH) 2 @CS-7 maintains notable proton conductivity at 43 % RH, with an E a of 0.216 eV, demonstrating its efficacy in low-humidity conditions. These findings underscore the profound impact of amino acid modifications and cross-linking on proton conductivity by reinforcing acid-base interactions, hydrogen bonding networks, and proton transfer efficiency.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Jiaqi Chang,Fengsen Wang,Peng Zhang,Jiaqi Li,Xi Zhang,Fanhong Chen,Qianrui Lv
The controllable pore structures and surface functionalization characteristics of metal-organic frameworks (MOFs) provide new ideas for the development of high-performance humidity sensors. In this study, a hierarchical porous IL/UIO-66-NH 2 material with well-defined microporous-mesoporous channels was successfully synthesized. This unique porous structure results from the steric hindrance effect and competitive coordination of a carboxylic acid-functionalized ionic liquid used as the MOF precursor. By combining the Kelvin equation with Fick's law of diffusion, we revealed how the synergistic interactions within hierarchical pore structures enhance water-molecule transport dynamics, resulting in ultrafast sensor performance with response and recovery times of 0.6 s and 0.9 s, respectively. The humidity sensing mechanism was systematically investigated using electrochemical impedance spectroscopy. The sensor can accurately distinguish respiratory states and recognize short speech signals, providing a new material design strategy for wearable health monitoring devices.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Jingling Gong,Bin Xiang,Ruirui Jin,Zhaoyang Li,Weimin Liu,Jian Li
Membrane fouling is a key challenge to the sustainable operation of oil–water separation membranes. Constructing a stable hydration layer on the membrane surface as an oil-fouling resistance barrier by modulating the physicochemical structure of the membrane is one of the most effective strategies. Herein, inspired by the petal structure in nature, Cu 3 (PO 4 ) 2 and UiO-66-NH 2 particles were combined by a self-assembly strategy to construct CUP (Cu 3 (PO 4 ) 2 /UiO-66-NH 2 /PVA) composite membranes with anti-fouling capability against viscous crude oil. Benefiting from the petal structure and abundant polar groups within the membrane, the as-prepared membrane could easily combine with water molecules to form a stable hydration layer, which acted as a barrier to hinder the oil contamination of the membrane. Further, the hierarchical flower-like structure was conducive to the improvement of the emulsion breaking rate and permeation flux of oil-in-water emulsions. After 60 min continuous cross-flow separation, the obtained CUP composite membrane still remained prominent separation efficiency (99.6 %) and permeate flux (4685.96 LMH/bar). In addition, the CUP composite membranes showed outstanding resistance to acid and alkali as well as abrasion. This study provides an effective method for the advancement of high-performance membranes with high flux and anti-fouling capability in the flied of oily wastewater treatment.
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