BIOSENSORS & BIOELECTRONICS
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2025
·
IF 10.5
Xiaobo Zhang,Xiuwen Wang,Longjiao Zhu,Jinyan Zhu,Qiuyue Zheng,Jingli Yuan,Wentao Xu,Jijuan Cao
Salmonella typhimurium ( S. typhimurium ), as common and highly pathogenic foodborne pathogen, poses a significant risk to public safety worldwide. The development of highly sensitive, rapid and on-site method for S. typhimurium analysis is urgently needed to prevent bacterial infections. Herein, we introduced a CRISPR/Cas12a-driven electrochemiluminescence (ECL) sensor based on luminol/O 2 binary systems for S. typhimurium detection, employing ultrafine Pt nanoclusters-anchored 2D delaminated-MXenes (Pt NCs/D-MXenes) as the co-reactant accelerator. The ultrathin D-MXenes support regulates the size and dispersibility of Pt NCs and facilitates the full exposure of active sites, and synergistic interactions between D-MXenes and Pt NCs improves electrocatalytic properties toward the reduction of O 2 , which promotes the generation of ROS for boosting ECL emission. Using target responsive-regulated CRISPR/Cas12a system, the ECL sensor for S. typhimurium showed a broad concentration range from 10 1 to 10 6 CFU/mL and limit of detection of 6 CFU/mL, with satisfactory recoveries in spiked-actual samples.
研究领域:
生物技术
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食品安全
·
分析化学
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DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 32
·期 15
·2111125
·
IF 18.808
Binyao Liu,Jinyan Du,Gaili Ke,Bi Jia,Yujie Huang,Huichao He,Yong Zhou,Zhigang Zou
g -C 3 N 4 photocatalysis is a safe and green approach for H 2 O 2 production, but the activity of pristine g -C 3 N 4 photocatalysts is unsatisfactory. At present, most of the modifications on g -C 3 N 4 photocatalysts for H 2 O 2 production have focused on thermodynamic processes, few have considered the kinetic aspects. Herein, the surface N -hydroxymethylation of g -C 3 N 4 photocatalysts for the efficient kinetic production of H 2 O 2 is reported. Through the reaction of formaldehyde with the amino moieties (–NH 2 ) on the g -C 3 N 4 surface, N -hydroxymethyls groups (-NH-CH 2 -OH) are introduced on typical g -C 3 N 4 photocatalysts. Relative to the pristine g -C 3 N 4 photocatalysts, the modified g -C 3 N 4 photocatalysts have over 1280% higher activity for H 2 O 2 production in pure water system, and impressive solar-to-chemical conversion efficiency. The experimental investigations and theoretical calculations reveal that the introduction of -NH-CH 2 -OH on the g -C 3 N 4 photocatalysts does not change their morphology, light absorption intensity and edges, band positions, charge separation and transfer properties, but markedly improved the H 2 O dehydrogenation and O 2 adsorption properties of g -C 3 N 4 . As a result, the reduction kinetics of O 2 to H 2 O 2 on the g -C 3 N 4 photocatalysts with -NH-CH 2 -OH is more energetically favorable. This work provides a useful reference and inspiration to achieve the effective modification of g -C 3 N 4 or other metal-free photocatalysts from the kinetic perspective.
研究领域:
光催化
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材料科学
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化学动力学
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可再生能源
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环境化学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121375
·
IF 7.2
Jinchuan Dai,Tingting Shen,Zhe Meng,Zuotai Zhang,Xiao-Ying Lu,Feiyun Sun,Yuanyuan Tang
As the production and consumption of electronic products increasingly rely on ternary lithium-ion batteries, the need for effective recycling and disposal methods for these batteries becomes crucial. This study introduces a novel, efficient co-pyrolysis method for recycling Li(Ni 1/3 Co 1/3 Mn 1/3 )O 2 (NCM) cathode materials from spent ternary lithium-ion batteries. Employing a 1.0:0.35 mass ratio of NCM: polyvinyl chloride (PVC) in an oxygen-free environment, high recovery rates of Li (91.3 %), Ni (93.5 %), Co (93.6 %), and Mn (94.5 %) metals are achieved. The NCM cathode materials begin to decompose at temperatures below 500℃ and are fully reduced and segregated into Ni-Co alloy, MnO, and Li 2 CO 3 at 550℃ in this process. Notably, the decomposition and reduction temperature of 550℃ is significantly lower than those reported in other studies. Moreover, the NCM cathode material, were regenerated from the pyrolysis products through a straightforward high-temperature solid-phase process, and the regenerated NCM demonstrates remarkable electrochemical properties with strong cycling and rate performance. This method significantly contributes to environmental conservation, offering a green solution for recycling ternary battery waste while also addressing the challenge of waste PVC plastics. This dual-faceted approach mitigates environmental burden and resource wastage, marking a stride towards sustainable waste management and circular economy.
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高影响因子
APPLIED CATALYSIS A-GENERAL
·
2024
·
IF 4.7
Chenyang Zhao,Yujia Liu,Yupeng Tian,Yahui Li,Junjie Feng,Wei Xu,Ning Shi,Zhe Yang,Bing Sun
Direct epoxidation of propylene (C 3 H 6 ) with hydrogen (H 2 ) and oxygen (O 2 ) over Au/TS-1 catalyst was promising way for the synthesis of propylene oxide (PO). However, high selectivity of PO (>95 %) and conversion of C 3 H 6 (>5 %) cannot be achieved at the same time. The industrialization process was severely restricted. In this paper, Au/TS-1 catalysts were synthesized by deposition precipitation method with alkali metal promoter. And alkaline gases and silane coupling post-treatment were performed to promote the catalytic activity. The prepared samples exhibited a much better C 3 H 6 conversion (6.5 %) and PO selectivity (95.1 %) compared with general catalyst using normal synthetic technology. Cs 2 CO 3 was beneficial to increasing Au nanoparticles uptake efficiency. Both NH 3 and triethoxyvinylsilane post-treatment were good for smaller and more uniform loading of Au nanoparticles. The decreasing in surface hydroxyl density effectively alleviated the occurrence of PO ring opening isomerization. The increased hydrophobicity of TS-1 surface was conducive to the rapid desorption of generated PO and significantly increased PO selectivity. Multiple pretreatment was also favorable for extending the lifetime of Au/TS-1 catalyst.
研究领域:
催化化学
·
材料科学
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DOI
高影响因子
FUEL
·
2023
·
IF 7.4
Muhammad Yousaf,Yuzheng Lu,Majid Niaz Akhtar,Ali Sarosh Khawaja,Khalid Mujasam Batoo,Sajjad Hussain,Asma Noor,Muhammad Akbar,Hu Enyi,M.A.K Yousaf Shah,Naveed Mushtaq,Bin Zhu
Lattice defects in rare earth (RE) doped single-phase semiconductor materials play a key role in structural modifications and physicochemical characteristics, resulting to enhance the ionic conductivity. In this work, we synthesized lanthanum doped samarium oxide with different mole ratios and applied it as a ceramics membrane fuel cell device to enable high peak power density (PPD) at low operational temperatures (520–400 °C). The samples are capable of triple charge H + /O 2− /e − conduction and enhance the catalytic function of the cell in terms of HOR and ORR kinetics by producing lattice defects. The fabricated Sm 1.5 La 1.5 Fe 5 O 12 (2-SLFO) fuel cell device exhibits a high OCV of 1.13 V with a maximum PPD of 864.26 mW/cm 2 at 520 °C. Durability measurement verifies that 2-SLFO-based fuel cell device can be worked for 60 h under fuel cell conditions (H 2 /air) at 520 °C. The first principle calculations using density functional theory (DFT) demonstrate that the higher oxygen vacancy concentration in the 2-SLFO sample may cause to the higher charge-transfer kinetics, subsequent in the enhancement of ions transportation of the fabricated fuel cell device.
研究领域:
材料科学
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电化学
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能源材料
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固态离子学
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燃料电池技术
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Lidan Xie,Wenyi Huang,Guoqiang Jiang,Yi Liu,Mude Zhu,Yi Tang,Xueqin Chen,Xiaoyun Fan
The wide occurrence of metronidazole (MNZ) in aquatic environment has aroused increasing concern to the potential adverse effects on human health. Combining different motifs into a photolytic material to achieve high photocatalytic efficiency is regarded as one of the main strategies during photocatalytic process. Herein, a triple anions contained photocatalyst , Ba 3 (BO 3 )(CO 3 )F (BBCF), exhibited excellent removal efficiency of MNZ (92.6%) in 15 min, which was 5.87 times higher than that of commercial P25. The excellent removal efficiency could be attributed to the strong electronegativity of the F − , and the π-conjugated triangles structure of (BO 3 ) 3− and (CO 3 ) 2− , which made BBCF facilitate the transport of photogenerated electrons, thus accelerating the accumulation of active h + . Meanwhile, the appropriate reduction potential of BBCF accounted for the outstanding productivity of O 2 – . h + and O 2 – were proved as the dominant reactive species for MNZ degradation. The degradation products were analyzed by LC-TOF-MS, and the toxicity of the intermediate was evaluated to be lower than that of parent MNZ molecule. Moreover, BBCF showed the universal application of degrading oxytetracycline (OTC), methylene blue (MB). Therefore, anion-rich BBCF catalyst with high catalytic activity has a potential application prospect for degrading harmful pollutants in practical water environment.
研究领域:
环境科学
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材料科学
·
化学工程
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
·Vol. 48
·期 27
·12146-12152
·
IF 2.7
Henan Zhang,Qi Liu,Alena Novoselova,Valeri Smolenski,Kewei Jiang,Yongde Yan,Milin Zhang,Jun Wang
The reactions of oxygen and samarium ions in molten NaCl–2CsCl eutectic in the temperature range of 823–913 K have been investigated by potentiometric titration in an inert gas atmosphere. The activity of oxygen ions in the studied melts was monitored using a standard YZME (indicator) electrode based on Y2O3-stabilized ZrO2 with a solid–electrolyte membrane. The titration of Sm3+ by O2− ions demonstrated the formation of insoluble SmOCl compounds in the investigated region. The mechanism of formation of SmOCl and Sm2O3 was established by the analysis of potentiometric titration curves. Subsequently, the solubility of SmOCl and Sm2O3 in the melt was calculated using the material balance equation and solubility constant equation. Finally, the basic thermodynamic properties of SmOCl and Sm2O3 in molten NaCl–2CsCl eutectic were calculated, and the properties of samarium in the melt were summarized using the Pourbaix-type (E-pO2−) diagram to determine the kinds of stabilized samarium compounds. Furthermore, the optimal chlorination conditions can be obtained from the E-pO2− diagram of Sm.
研究领域:
化学
·
材料科学
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DOI
高影响因子
RARE METALS
·
2023
·Vol. 42
·期 6
·1969-1982
·
IF 8.8
Liao Jia-Lin,Zhang Shuai,Bai Tian-Sheng,Ji Feng-Jun,Li De-Ping,Cheng Jun,Zhang Hong-Qiang,Lu Jing-Yu,Gao Quan,Ci Li-Jie
Lithium metal batteries (LMBs) with a high theoretical capacity are seen as a type of the most potential energy storage system. Unfortunately, the growth of lithium dendrite, the irreversible side reactions, and the infinite volume alteration still curb the practical utilization of lithium metal anodes, resulting in low Coulombic efficiency (CE) and safety problems, etc. Herein, we synthesize a lithiophilic 3D copper foam host with uniformly distributed nano-flower-like ZnO particles (CuF/ZnO) and obtain the composite lithium metal anode containing the Li 2 O, LiZn alloy, and pure Li by the infusion of molten Li (CuF/Li 2 O-LiZn@Li). Benefitting from the advantages of the 3D structure of copper foam and the lithiophilicity of ZnO sites, the composite lithium metal anode can restrain the volume alternation and regulate the uniform deposition of lithium. The symmetrical cells of the composite lithium metal anode have a 1600 h long cycle life with a low polarization voltage of 15 mV, and the Coulombic efficiency can maintain about 97.8% at 1.0 mA·cm −2 , 1.0 mAh·cm −2 . Graphical abstract
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高影响因子
Catalysts
·
2023
·Vol. 13
·期 3
·577
·
IF 3.9
Lu Zou,Weilin Kong,Linfeng Peng,Fang Wang
The development of Li-CO2/O2battery with high energy density and long-term stability is urgently needed to fulfill the carbon neutralization and pollution-free environment targets. The biomass-derived heteroatom-doped carbon catalyst with the combination of high-efficiency catalytic activity and sustainable supply is a promising cathode catalyst in Li-CO2/O2battery. Specifically, the unique morphology and mesopore structure can promote the transfer of CO2, O2, and Li+. Abundant channel pores can provide discharge products accommodation to the largest extent. Nitrogen dopant, the commonly recognized active sites in carbon, can improve the electron conductivity and accelerate the sluggish kinetic reaction. Therefore, utilizing the louts leaves as the precursor, we successfully prepare the cellular-like nitrogen-doped activated carbon nanosheets (N-CNs) through the appropriate pyrolysis carbonization method. The as-synthesized carbon nanosheets display a three-dimensional interconnecting pore structure and abundant N-dopant actives, which dramatically improve the electrochemical catalytic activity of N-CNs. The Li-CO2/O2battery with the N-CNs cathode delivers a high discharge capacity of 9825 mAh g−1, low overpotential of 1.21 V, and stable cycling performance of 95 cycles. Thus, we carry out a facile method for N-doped carbon nanosheets preparation derived from the cheap natural biomass, which can be the effective cathode catalyst for environmental-friendly Li-CO2/O2battery.Keywords:biomass-derived carbon;carbon nanosheets;nitrogen defects;cathode catalyst;Li-CO2/O2battery
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DOI
高影响因子
Acta Biomaterialia
·
2023
·
IF 9.7
Yuan-Fu Ding,Xun Xu,Junyan Li,Ziyi Wang,Jingwei Luo,Greta S.P. Mok,Shengke Li,Ruibing Wang
Dual- or multi-modality combination therapy has become one of the most effective strategies to overcome drug resistance in cancer therapy, and the optimized ratio of the therapeutic agents working on the tumor greatly affects the therapeutic outcomes. However, the absence of a facile method to optimize the ratio of therapeutic agents in nanomedicine has, at least in part, impaired the clinical potential of combination therapy. Herein, a new cucurbit[7]uril (CB[7])-conjugated hyaluronic acid (HA) based nanomedicine was developed, in which both chlorin e6 (Ce6) and oxaliplatin (OX) were co-loaded non-covalently at an optimized ratio via facile host-guest complexation, for optimal, combined photodynamic therapy (PDT)/chemotherapy. To maximize the therapeutic efficacy, a mitochondrial respiration inhibitor, atovaquone (Ato), was also loaded into the nanomedicine to limit consumption of oxygen by the solid tumor, sparing oxygen for more efficient PDT. Additionally, HA on the surface of nanomedicine allowed targeted delivery to cancer cells with over-expressed CD44 receptors (such as CT26 cell lines). Thus, this supramolecular nanomedicine platform with an optimal ratio of photosensitizer and chemotherapeutic agent not only provides an important new tool for enhanced PDT/chemotherapy of solid tumors, but also offers a CB[7]-based host-guest complexation strategy to facilely optimize the ratio of therapeutic agents for multi-modality nanomedicine. Statement of significance Chemotherapy remains the most common modality for cancer treatment in clinical practice. Combination therapy by co-delivery of two or more therapeutic agents has been recognized as one of the most effective strategies to improve therapeutic outcome of cancer treatment. However, the ratio of loaded drugs could not be facilely optimized, which may greatly affect the combination efficiency and overall therapeutic outcome. Herein, we developed a hyaluronic acid based supramolecular nanomedicine with facile method to optimize the ratio of two therapeutic agents for improved therapeutic outcome. This supramolecular nanomedicine not only provides an important new tool for enhanced photodynamic therapy/chemotherapy of solid tumors, but also offers insights in using macrocyclic molecule-based host-guest complexation to facilely optimize the ratio of therapeutic agents in multi-modality nanomedicine.
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DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2022
·
IF 13.599
Dongdong Li,Jinbiao Chen,Yingtong Chen,Yian Wang,Yanpeng Fu,Minhua Shao,Zhicong Shi
Rechargeable aprotic Li-O 2 batteries have attracted increasing attention due to their extremely high capacity, and it is very important to design appropriate strategies to synthesize efficient catalysts used as oxygen cathode. In present work, we present an expedient “instantaneous nucleation and epitaxial growth” (INEG) synthesis strategy for convenient and large-scale synthesis of ultrafine MOCPs nanoparticles (size 50–100 nm) with obvious advantages such as fast synthesis, high yields, low costs and reduced synthetic steps. The bimetallic Ru/Co-MOCPs are further pyrolyzed to obtain bimetallic Co– and low content of Ru-based nanoparticles embedded within nitrogen-doped carbon (Ru/Co@N C) as an efficient catalyst used in Li-O 2 battery. The Ru/Co@N C provides porous carbon framework for the ion transportation and O 2 diffusion, and has large amounts of metal/nonmetal sites as active site to promote the oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) in Li-O 2 batteries. As a consequence, a high discharge specific capacity of 15246 mA h g −1 at 250 mA g −1 , excellent rate capability at different current densities, and stable overpotential during cycling, are achieved. This work opened up a new understanding for the industrialized synthesis of ultrafine catalysts for Li-O 2 batteries with excellent structural characteristics and electrochemical performance.
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Chufei Cheng,Fengnian Zhang,Fuhao Cheng,Jiadong Hou,Bei Ren,Yang Miao,Libiao Xin,Xiaomin Wang
The sintering process of high entropy fluorite oxide ceramics prepared by the conventional solid-phase reaction method suffers from high single-phase synthesis temperature, low densities, and abnormal grain growth . To improve the sintering characteristics of high entropy fluorite oxide ceramics, the oxide mixture was dealt with dielectric barrier discharge plasma-assisted ball milling. The samples were analyzed using XRD , SEM, TEM, TG/DTG, visual high-temperature deformation analyzer, and nanoindentation meter. The results show that the plasma field activates the raw material powder and promotes powder finer. The rapid heating effect of the plasma during the ball milling process causes micro-area sintering and micro-area melting on the powder surface, which increases the active sites of the solid phase reaction of the material, accelerates the mass transfer process, and improves the sintering activity. Compared with conventional ball milling, plasma-assisted ball milling reduces the single-phase synthesis temperature of high entropy ceramics from 1500 °C to 1300 °C. The sintered ceramic pellets have intact grain growth, no noticeable abnormal grain growth, and improved density and mechanical properties .
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高影响因子
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