APPLIED SURFACE SCIENCE
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2025
·
IF 6.9
Yi Li,Shiyin Ji,Yangzhou Fan,Tao Duan,Youkui Zhang
The Haber-Bosch process for ammonia synthesis is energy-intensive and environmentally damaging, while nitrate wastewater poses risks to both the environment and human health. Utilizing electrochemical method could remove nitrate in the sewage and a part of nitrate would been reduced to ammonia provided a highly efficient approach for nitrate removal and ammonia synthesis. In this study, incorporated Cu and Co on boron-nitrogen-doped graphite (BCN) substrate with eminent conductivity synthesized BCN-CuCo catalyst. On the catalyst, Cu and Co gave rise to synergistic effect which aroused charge redistribution between Cu and Co, which facilitated the nitrate adsorption, accelerated catalytic kinetics for nitrate reduction. BCN-CuCo catalyst demonstrated eminent performance for nitrate reduction, achieving a high Faradic efficiency of 95.8 % at −0.46 V vs RHE and an impressive ammonia yield rate of 12321.6 μg h −1 mg cat -1 at −0.86 V vs RHE in 0.5 M H 2 SO 4 with 0.1 M KNO 3 . It also showed excellent performance in HNO 3 and neutral media, expanding its application scope. Ultimately, the BCN-CuCo facilitated the production of 320 mg of ammonium diuranate in a neutral medium, supporting sustainable resource utilization. This research provides an efficient strategy for ammonia synthesis and introduces a method for recycling resources from uranium and nitrate-contaminated wastewater.
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APPLIED CATALYSIS A-GENERAL
·
2025
·
IF 4.8
Ting Wu,Xiang Zhang,Hongju Liang,Quan Wang,Chun-Ling Liu,Wen-Sheng Dong
The design of highly efficient and cost-effective catalysts for the conversion of biomass-derived 5-hydroxymethylfurfural (5-HMF) into sustainable liquid fuel 2,5-dimethylfuran (DMF) is both important and challenging. In this study, we developed a non-noble Co catalyst supported on SBA-15 (25Co/SBA-15). Our results demonstrate that this catalyst exhibits remarkable efficiency in selectively hydrodeoxygenating 5-HMF to DMF, achieving a DMF yield of 96.3 % with complete conversion of 5-HMF under mild reaction conditions (150 °C, 2.0 MPa H 2 for 2 h). Notably, the productivity rate of DMF reached an exceptional value of 19.1 mmol·gcat −1 ·h −1 , surpassing most previously reported catalysts in literature. Additionally, by utilizing two distinct solvents - N,N-dimethylformamide (N,N-DMF) resulting in a high yield of 2,5-bis(hydroxymethyl)furan (BHMF) and tetrahydrofuran (THF) yielding an even higher yield of DMF - our approach enables facile switching between these two products during hydrogenation over the Co/SBA-15 catalyst. Furthermore, our catalyst demonstrates excellent reusability and can be easily regenerated through calcination in air. The exceptional catalytic performance of the catalyst can be ascribed to the synergistic effect between metallic Co and adjacent Lewis acidic Co 2+ in CoO dispersed on the surface of SBA-15. A dual-site Langmuir–Hinshelwood–Hougen–Watson (LHHW) model was proposed for the hydrodeoxygenating 5-HMF to DMF.
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LWT-FOOD SCIENCE AND TECHNOLOGY
·
2025
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IF 6.6
Yiting Ye,Jiaqi Liu,Tingzi Yan,Yujia Yan,Jiangkai Fan,Xiao Zhang,Li Gan,Hui Chai,Guoying Zhou
Due to the huge waste caused by fruit mildew during transportation and storage, there is an urgent need to develop novel packing materials with antibacterial and degradable properties. Herein, poly(lactic-co-caprolactone)/Gelatin/Tannic acid (PLCL/GEL/TA) membranes were fabricated by electrospinning of PLCL and GEL to obtain PLCL/GEL membranes, followed by cross-linking with TA. The microstructures of PLCL/GEL/TA membranes were characterized by scanning electron microscope (SEM). The mechanical and wetting properties were evaluated by Instron universal material testing and Drop shape analysis system, respectively. The antibacterial and antioxidant properties were determined. The preservation properties of the membranes were evaluated using blueberry as a model fruit. The results showed that smooth and uniform microstructure was formed on all electrospun membranes. The PLCL/GEL/TA membranes exhibited enhanced mechanical property, wettability, biodegradability, antioxidant and antibacterial properties, when compared to PLCL/GEL membranes without TA treatment. In addition, these increased properties showed positive correlation with TA content. Besides, TA was slowly released from the PLCL/GEL/TA membranes, in a controlled and sustained manner. Moreover, the cytotoxicity assays confirmed the non-toxic nature of these membranes. Finally, the PLCL/GEL/TA membranes effectively inhibited decay degree, weight loss, and extended the shelf life of blueberries. Overall, the antioxidant, antibacterial, biodegradable and biocompatible PLCL/GEL/TA membranes exhibited remarkable preservation performance, demonstrating significant potential as novel packing materials.
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TALANTA
·
2025
·
IF 6.1
Yin-Xia Sun,Xue Bai,Ai-Ping Luo,Yu Sun,Zhe-Peng Deng,Wan-Hong Sun,Wen-Yu Han
Quinolone antibiotics pose a threat to health and the environment due to their difficulty in decomposition and misuse. A novel fluorescence composite material CQD x @Co/Mn-MOF has been developed, which uses cobalt (Co) and manganese (Mn) as metal centers and 1,3,5-triazobenzene as organic ligands. Meaningfully, CQD x @Co/Mn-MOF can be designed as a ratiometric fluorescence sensor for detecting quinolone antibiotics, especially norfloxacin (NFX). In a series of CQD x @Co/Mn-MOF, CQD 6μL @Co/Mn-MOF sensor exhibits good linearity within the NFX concentration range of 1–4 × 10 −5 M, with a detection limit of 0.70 μM. Compared with Co/Mn-MOF, introducing CQDs significantly reduces the detection limit from 3.50 μM to 0.70 μM and increases the detection sensitivity by five times. The CQD 6μL @Co/Mn-MOF sensor exhibits fast response time (2 s), high selectivity and sensitivity to NFX, making it an ideal ratiometric fluorescent sensor for the detection of these antibiotics. Based on its excellent detection performance, the sensor was further applied to the quantitative determination of NFX in chicken, beef and honey samples and satisfactory results were obtained with recoveries ranging from 97.51 % to 108.60 %. In addition, based on CQD 6μL @Co/Mn-MOF test strips, convenient and real-time detection of quinolone antibiotics has been achieved. In conclusion, the CQD 6μL @Co/Mn-MOF ratiometric fluorescent sensor provides a reliable, sensitive and efficient analytical method for the detection and evaluation of trace NFX in food, which is of great significance for ensuring food safety and public health.
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高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2024
·Vol. 54
·期 1
·634-646
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IF 2.2
Liu Xinyu,Li Mingzhao,Shi Chonghua,Wang Jing,Yao Shaowei
Sodium-ion batteries are considered promising for large-scale energy storage due to their abundance. Therefore, it is crucial to develop stable anode materials with high specific capacity. SnO 2 was coated with Zn/Co-zeolitic imidazolate frameworks (ZIFs) by using the solvothermal method to obtain SnO 2 @Zn/Co-ZIFs. Then, Sn@Zn/Co-NPC (N-doped porous carbon) was obtained through heat treatment in an inert atmosphere. In this material, Sn provides a higher capacity, while Zn/Co-NPC not only can provide part of the capacity and increase the conductivity of the material, but also helps alleviate the volume expansion of Sn during the charge and discharge process. Therefore, the effect of the amount of Sn on the electrochemical properties of the materials was investigated by varying the addition of SnO 2 . The results show that the 50Sn@Zn/Co-NPC electrode material retains a discharge specific capacity of 334.90 mAh g −1 after 100 cycles at 100 mA g −1 current density. After 200 cycles at 500 mA g −1 current density, 50Sn@Zn/Co-NPC electrode material still has 275.80 mAh g −1 discharge specific capacity. The 50Sn@Zn/Co-NPC electrode material has excellent electrochemical properties. Therefore, this paper provides a reference for the design of stable, long-cycle, and low-cost anode materials for sodium-ion batteries.
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APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Qiang Guo,Yu Qiao,Yonghou Xiao,Yi Pan,Yushan Li,Xu Liu,Gaohong He
Cuprous ion modified molecular sieves have been considered as promising CO adsorbents in gas separation or purification industry. However, it persists as a significant challenge to overcome the unfavorable effect of water vapor in the work environment on gas adsorption and separation. Herein, we propose a synthetic strategy using rare earth element La as an additive to form La O La coordination bonds followed by surface silanization treatment to construct a hydrophobic Si O Si barrier to significantly improve the stability of Cu + under humid atmosphere. By successively introducing La 3+ and Cu + into zeolite 5A, CuCl/LaA adsorbents were prepared via ion exchange and solid dispersion methods. And then by silanization modification using toluene as solvent and butyltrichlorosilane (BTS) as hydrophobic agent, hydrophobic CuCl/LaA-BTS adsorbents were prepared. Dynamic adsorption investigation demonstrated that the as-prepared CuCl/LaA-BTS adsorbents possessed hydrophobic surface and consequently the adsorption capacity of CO was enhanced significantly under humid atmosphere. The CO adsorption breakthrough capacity over CuCl/LaA-BTS attained 0.34 mg/g, which was 5.7 times higher than that of zeolite 5A at 40 °C, atmospheric pressure and a relative humidity of RH = 55 %. Moreover, the CO adsorption capacity of CuCl/LaA-BTS retained 0.31 mg/g after four cycle regenerations. This work provides an effective and novel route for synthesizing highly stable cuprous ion modified zeolite adsorbents.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
·
IF 20.2
Peng Zhang,Cai Liang,Mudi Wu,Yongjie Li,Xiaoping Chen,Daoyin Liu,Jiliang Ma
The efficiency and sustainability for the recycling of plastic wastes into hydrogen was investigated. An integrated microwave-driven valorization of plastic wastes and CO 2 for H 2 and CO production was proposed. Specifically, plastic wastes were decomposed into H 2 and solid carbons, followed by carbon elimination via CO 2 gasification under microwave irradiation. Through the high-throughput screen of catalysts as well as the optimization of key parameters, over 96% hydrogen was converted into H 2 with a yield of 480 mmol∙g −1 H plastic while the carbon conversion and CO 2 conversion reached up to 70% and 53%. The five-cycle successive test displayed extraordinarily high and stable catalytic activity due to the facile elimination of carbon deposition. The application for real-world plastic wastes further demonstrated the efficient microwave-driven CO 2 gasification of plastic wastes into H 2 and CO production as a feasible and sustainable technology toward the waste-to-energy circular economy.
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DESIGNED MONOMERS AND POLYMERS
·
2024
·
IF 1.8
Xiangcheng Bian,Liqun Ma,Chen Yang,Fuchun Zhang,Shuo Zhang,Yuan Li,Kai Gao,Bingxiao Liu,Zhongqiang Wang
Herein, poly(pentanediamine terephthalamide) (PA5T) homopolymer was synthesized via a salt-forming reaction+solid state polycondensation method using bio-based 1,5-pentanediamine and terephthalic acid as the primary raw materials. To address the issue of its narrower processing window, poly(hexamethylene terephthalamide)(PA6T), which also cannot be melt processed due to the processing window is negative, was introduced into its molecular chain to synthesize poly (pentanediamine/hexanediamine terephthaloyl) (PA5T-co-6T) copolymers. The structures were investigated by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance carbon spectroscopy (13C-NMR). Furthermore, the melting temperature, crystallization temperature, thermal stability, and crystal growth mode of the polymer were tested and analyzed using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and wide-angle x-ray diffraction (WAXD), respectively. The results demonstrate that the crystal growth mode gradually changes from three-dimensional spherical growth to two-dimensional disk-like or three-dimensional spherical growth with the increase of 6T chain segment content. Simultaneously, the crystallization temperature, melting temperature, and crystallization rate of the polymer all showed a trend of decreasing first and then increasing, which was due to the combined effects of the increase in the content of 6T chain segments on the molecular-chain structure and crystal structure of the polymer. Bio-based PA5T-co-6T has excellent heat resistance and a wider processing window than PA5T and PA6T, which possesses great application prospects in the fields of automotive, electronic appliances, and LED optics.
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COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
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2025
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IF 4.3
Yuxuan Luo,Zheng Zhang,Xuewei Li,Zile Zhuang,Yihan Li,Xinya Wang,Changqing Liao,Lujia Chen,Qizhi Luo,Xuncai Chen
Microplastics (MPs) are ubiquitous environmental pollutants that have garnered significant attention due to their small particle size, resistance to degradation and large specific surface area, which makes it easy to adsorb various pollutants, particularly heavy metals. Arsenic (As), a common metal poisons, poses significant risks due to its widespread industrial use. When MPs and As co-exist in the environment, they can exert combined toxic effects on organisms, affecting various systems, including the nervous system. However, research on the reproductive damage caused by the co-exposure to MPs and As is limited, and the toxic effects and mechanisms remain unclear. In this study, we investigated the co -exposure of polystyrene microplastics (PSMP) and As on female zebrafish to evaluate the reproductive toxicity and transgenerational effects. The results revealed that the combined exposure exhibited elevated reproductive toxicity, resulting in reduced gonadal indices, abnormal oocyte maturation, and disrupted sex hormone levels, as evidenced by an increased E2/T ratio. Metabolomics analyses revealed that the co-exposure to PSMP and As primarily affected pathways involved in aminoacyl-tRNA biosynthesis, sphingolipid metabolism, linoleic acid metabolism, galactose metabolism, and amino sugar and nucleotide sugar metabolism. These pathways are associated with oxidative stress, lipid synthesis, and sex hormone synthesis. Importantly, the combined exposure group exhibited more pronounced effects on offspring development compared to the alone treatment group, characterized by increased mortality rate, decreased hatching rate, and reduced heart rate. These findings provide evidence that co-exposure to MPs and As damages the reproductive system and adversely affects offspring growth and development.
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高影响因子
Results in Chemistry
·
2025
·
IF 4.2
Fuhua Wei,Peng Chen,Qinhui Ren,Qin Zhang,Wei Shang,Diaodiao Zhang,Min Li,Zhao Liang
The Co/Zn-MOFs material was synthesized successfully via the solvothermal method and then underwent calcination at 900 °C. To investigate its structural properties, multiple characterization techniques were applied, such as scanning electron microscopy (SEM), Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and nitrogen adsorption-desorption isotherms. These analyses aimed to assess the features of the carbon material for its efficacy in minocycline removal. The experimental findings demonstrated that the ideal conditions for maximizing minocycline adsorption on the carbon material obtained from Co/Zn-MOFs comprised a dosage of 20 mg, a solution concentration of 50 ppm, and a pH level of 10. Furthermore, kinetic studies revealed that the pseudo-second-order model accurately represented the experimental data. In conclusion, this research underscores the remarkable adsorption capability of the carbon material derived from Co/Zn-MOFs for minocycline, indicating potential applications in environmental cleanup and presenting an innovative approach for environmental preservation.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Yongdie Zhao,Xiaohao Liu,Rui Diao,Dongxu Yan,Fenglei Qi,Peiyong Ma
Selective hydrogenation of fatty acids is an important method for the preparation of long-chain alkanes and fatty alcohols. Herein, a series of bimetallic catalysts with different Fe/Co ratios were prepared by using phosphoric acid-activated biochar as a support. The anchoring effect of P-containing functional groups in the support greatly improves the sintering resistance of the metals. The conversion pathway of stearic acid (SA) can be regulated by controlling Fe doping and the reduction temperature. The reduction of Fe1Co3/PAC at 400 °C can selectively regulate the hydrodeoxygenation pathway of SA. At 250 °C and 4 MPa, SA was almost completely converted to long-chain alkanes. Mechanism study shows that Fe doping increases the hydrogenation site CoO and dehydration site Fe–O–P in catalysts. However, by further increasing the reduction temperature, the metal phosphides formed in the catalyst can significantly enhance the dehydrogenation of octadecanol and decarbonylation of octadecaldehyde.
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GREEN CHEMISTRY
·
2024
·Vol. 26
·期 5
·2884-2892
·
IF 9.3
Lindong Xia,Wenzhen Qin,Yu Xie,Yiqiao Wang,Yun Ling
Improving the separation efficiency of photo-generated electron–hole pair is a key issue in the field of photocatalytic hydrogen production. In this work, we successfully improved the efficiency of photo-generated carrier separation using the synergistic action of sulfur (S) vacancies and a Ni2P co-catalyst. Vs-Zn0.5Cd0.5S (Vs-ZCS) with S vacancies was designed and constructed, and Vs-ZCS/Ni2P photocatalysts were prepared with non-precious metal Ni2P as a co-catalyst. Among all the produced materials, Vs-ZCS/Ni2P-5% has a photocatalytic characteristic of 40.81 mmol g−1 h−1, which is 7.88, 3.08 and 3.75 times greater than those of ZCS (5.18 mmol g−1 h−1), Vs-ZCS (13.25 mmol g−1 h−1) and ZCS/Ni2P-5% (10.88 mmol g−1 h−1), respectively. The results of transient photo-current, electrochemical impedance spectroscopy, photoluminescence and time-resolved fluorescence show that the synergistic effect of S vacancies and Ni2P significantly promotes the separation and transfer efficiency of photo-generated carriers, as well as the photocatalytic hydrogen production reaction. Superoxide radicals and electrons are the active species for photocatalytic hydrogen generation, which is confirmed by active species capture tests and EPR. This study presents an innovative approach for developing photocatalysts with low cost and good catalytic performance.
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危险品化学品经营许可证（带存储）