CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Shen Wang,Meng Rong,Lin-Bing Sun,Yunze Zhao,Huifang Xing,Liangrong Yang
Indeed, the efficient and sustainable recovery of lithium from highly concentrated sodium-containing mother liquors of Li 2 CO 3 and salt-lake brines remains a significant challenge. Herein, two typical Li + recognition receptors, namely benzo-12-crown-4 and thenoyltrifluoroacetone, were separately introduced into the cationic and anionic parts to successfully synthesize novel bi-functionalized task-specific ionic liquids [(B12C4)C n im][TTA] (n = 4, 6, 8). A new, green, and high-efficiency extraction system has been developed by dissolving [(B12C4)C 6 im][TTA] in commercial room-temperature ionic liquid 1-hexyl-3-methyl-imdazolium bis(trifluromethylsulfonyl)imide [C 6 mim][NTf 2 ], without the addition of any other co-extractants. The newly developed [(B12C4)C 6 im][TTA]-[C 6 mim][NTf 2 ] extraction system exhibited a wide pH working range (4.0–11.0), high lithium extraction efficiency (95.4 %), as well as superior separation factors of Li/Na (β Li/Na = 2154.0) and Li/K (β Li/K =757.2). The extraction mechanism involving cation exchange was determined through slope analysis, ion chromatography, UV–vis spectroscopy and FT-IR spectra measurement, indicating that one [(B12C4)C 6 im][TTA] molecule can interact with two lithium ions and form a 1:2 complex. Moreover, the [(B12C4)C 6 im][TTA]-[C 6 mim][NTf 2 ] extraction system also demonstrated fast extraction kinetics, facile stripping and regeneration, along with good cycling performance. Furthermore, a multi-stage countercurrent extraction process to extract lithium from the simulated mother liquor of Li 2 CO 3 was evaluated. When the volume ratio (O/A) of oil phase (O) to water phase (A) was 1.0, only two theoretical extraction stages were needed to extract 91.4 % of lithium into the organic phase. Thus, the [(B12C4)C 6 im][TTA]-[C 6 mim][NTf 2 ] extraction system is promising for lithium extraction from mother liquor of Li 2 CO 3 and salt-lake brines. This study also opens the avenue for designing cationic and anionic bi-functionalized ionic liquids for metal ion separation.
✓ 已验证
产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2025
·
IF 10.5
Haizhi Huang,Hefei Wang,Keyu Du,Xiaoping Yu,Xuping Shentu
Lateral flow immunoassay (LFIA) is an affordable and rapid technique for detecting veterinary drugs such as sulfonamides (SAs). However, balancing accuracy, sensitivity, and convenience remains a challenge. To address this, a microfluidic chip-based LFIA utilizing a zirconium-based organic framework, PCN-222@liposome, was developed to simultaneously detect four Sas: sulfamethizole, sulfamethoxazole, sulfamethoxydiazine, and sulfathiazole, with both colorimetric and fluorescent dual-signal detection. In this study, PCN-222 was modified with liposomes to enhance its biocompatibility and water solubility. Characterization through scanning electron microscopy, transmission electron microscopy, powder X-ray diffraction, and Fourier-transform infrared spectroscopy, confirmed the successful incorporation of liposomes with PCN-222. Under optimized conditions, the PCN-222@liposome-LFIA demonstrated high sensitivity, with detection limits ranging from 0.01 to 0.05 μg/L using fluorescent signals—10 times more sensitive than conventional gold nanoparticle-based LFIA. Finally, the PCN-222@liposome-LFIA integrated with the microfluidic chip successfully detected the four SAs in chicken, shrimp, and milk samples, with recoveries ranging from 89.65 % to 118.78 %. This study presents a simple, sensitive, and efficient method for the rapid detection of veterinary drug residues.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2024
·
IF 10.7
Chunli Yang,Yanan Shi,Yuqing Zhang,Jiayang He,Zhihan Zhang,Xinyue Jia,Ruo Yuan,Wenju Xu
Constructing label-free bivariate fluorescence biosensor would be intriguing and desired for the recognizable and accurate detection of two specific DNA segments, yet the design of functional DNA structures with low overlapped interference might be challenging. Herein in this work, a double-faced J anus D NA n ano a rchitecture ( J DNA) with bi-responsive recognition regions on opposite sides was assembled, which consisted of two substrate strands and two template strands for loading green-/red-emissive Ag nanoclusters ( g AgNC and r AgNC) as bivariate signaling reporters. Of note, the hybridized double helix in the middle rationally oriented two flank faces and stabilized the rigid conformation of J DNA, while the template sequences of bicolor clusters were blocked to minimize non-specific background leakage. Upon inputting two targets, the discernible hairpins lost their hairpin structures due to forming two dsDNA complexes. They were executed to simultaneously invade J DNA for activating two individual target-recycled strand displacement (TRSD) events, guiding signal transduction and efficient amplification. Consequently, the clustering templates were unlocked via the tailored conformation switch of J DNA, in which g AgNC and r AgNC were in situ synthesized in two diagonal positions, thereby significantly emitting bi-responsive signal without cross interference. Benefited from the logic integration of double-faced J DNA and TRSD, a label-free, sensitive and specific bivariate fluorescence approach was developed, which would open a new avenue for the potential application in biosensing and bioanalysis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Huan Shi,Tuo Li,Yang Liu,Tong Yu,Zhenxiang Zhao,Linrui Hou,Changzhou Yuan
Sodium metal batteries (SMBs) have been widely investigated recently due to the low price of Na metal, satisfactory energy density and similar chemical properties to lithium. However, SMBs also face challenges like low Na utilization, dendrite growth, dead sodium accumulation, unstable solid electrolyte interphase and massive bubble generation. To improve their safety and cycling stability, herein, we fabricate a porous hybrid framework, i.e. , fine Bi nanoparticles anchored in porous N-doped carbon matrix (Bi@PNC), as a modified layer upon Cu collector toward stable SMBs. Upon electrochemical activation, the nanoscale Bi-derived Na–Bi alloy with high sodiophilicity reduces the nucleation overpotential of Na, inhibits the formation of Na dendrites, and decreases the loss of Na during cycling. Thanks to these striking merits, the half cells assembled with Na undergo 1600 cycles (3200 h) at 1 mA cm −2 , 1 mAh cm −2 with the average Coulombic efficiency of 99.95%. The optimized Bi@PNC based symmetric cells still maintain the overpotential of ∼9.2 mV under 1 mA cm −2 and depth of discharge of 16.7% after cycling for 2420 h. Furthermore, the assembled less-Na full SMBs exhibit superb electrochemical properties. Our strategy here provides meaningful avenue to construct stable less-Na metallic anodes for advanced SMBs.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Inorganic and Organometallic Polymers and Materials
·
2024
·
IF 3.9
Ji Yufeng,Zou Congyang,Wang Yong,Zhou Zhuyou,Liu Menghe,Xu Ying,Liu Ruijie,Yang Minjie
In this study, a novel photocatalyst composed of silver phosphate (Ag 3 PO 4 ) and bismuth-based organic framework (Bi-MOF) were synthesized via chemical precipitation at room temperature, and the photocatalytic degradation of pollutants under visible light irradiation was conducted to evaluate their photocatalytic performance. The composite materials exhibited significantly enhanced photocatalytic activity compared to pure Bi-MOF and Ag 3 PO 4 , with APBM-1/1 performing the most effectively. The degradation efficiencies of rhodamine B (RhB) and tetracycline hydrochloride (TCH) were 99% and 86.9% within 50 min and 30 min of light exposure, respectively. The construction of a unique p-n heterojunction interface between Ag 3 PO 4 and Bi-MOF significantly enhanced the efficiency of interfacial charge separation, leading to exceptional photocatalytic activity. Capture experiments and electron paramagnetic resonance (EPR) were conducted, revealing that photogenerated holes (h + ) and superoxide radicals (·O 2 − ) were the primary active species involved in the degradation reaction. Based on these findings, a plausible mechanism for the photocatalytic process was proposed.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2024
·
IF 3.8
Chengcheng Yang,Wen Deng,Fei Li,Mengting Gong,Hui Li,Xiaorong Mi,Sitong Ma
A pH/temperature bi-responsive gallic acid magnetic imprinted polymer (PTBG-MIP) was synthesized on a Fe 3 O 4 @SiO 2 @KH570 carrier using methacrylic acid (MAA), p-Vinylphenylboronic acid (p-VPBA), and N-isopropyl-acrylamide (NIPAAm) as complex functional monomers. The density functional theory (DFT) was employed to optimize the molar ratio of multi-functional monomers-template complex, which proved to be an effective tool for predicting complex configuration based on electrostatic potential (ESP) analysis and the lowest binding energy. DFT calculation and analysis determined the optimized molar ratio of 2:1:1:1 for GA-MAA-NIPAAm-p-VPBA, which showed good agreement with experimental results. The PTBG-MIP-4 obtained under the optimized conditions exhibited high pH- and temperature- dependence in rebinding the template, displaying a maximum adsorption capacity ( Q e ) of 62.26 mg g −1 and a highest selection factor (α) of 5.217. Additionally, the PTBG-MIP-4 exhibited exceptional physicochemical properties encompassing magnetization characteristics, morphology, surface sites distribution, and adsorption performance. The application efficiency of this imprinted composite in the extraction and purification of gallic acid from Galla chinensis was remarkably demonstrated.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Jixia Deng,Changlin Zhai,Lei Zhan,Kuihua Zhang,Tao Yang,Qinfei Ke,Chen Huang,Anlin Yin
The long-term reliability of small-diameter vascular grafts (SDVGs) is still largely confined by acute thrombosis, intimal hyperplasia and delayed endothelialization. In this study, a fibrous SDVG containing both physical and biochemical cues was developed to promote rapid endothelialization. The success of our method depends on the integration of a bi-oriented luminal surface with the conjugation of salvianolic acid B (Sal B) via aminolysis and subsequent amidation reaction. Specifically, longitudinally aligned poly (lactide acid-co-ε-caprolactone) (PLCL) microfibers having nano-grooved surface texture provided bi-oriented topographical cues to guide the elongation and migration of endothelial cells (ECs), whilst the incorporation of Sal B served as a biochemical signal to inhibit thrombosis, enhance EC growth and increase von Willebrand factor (vWF) expression in ECs. When implanted into a rat abdominal aorta defect model, the graft was able to facilitate luminal EC coverage, smooth muscle cells infiltration and collagen deposition without causing stenosis or thrombosis. The combination of bi-oriented topography with surface functionalization may become a platform design to maintain patency and accelerate in situ tissue regeneration of SDVG.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Lan Yang,Junyu Zhao,Chengyang Wang,Ruotong Pang,Daming Wang,Xiaogang Zhao,Chunhai Chen
Nowadays, the polymer-based composites with excellent thermal-conductive ability and ideal electromagnetic interference shielding performance are in great demand with the advent of developing modern electronic technology. However, most conventional thermal-conductive materials were typically designed to enhance thermal conductivity in just one single direction (through-plane or in-plane direction), which will be inadequate to meet increasing heat-dissipation requirements. Hence, polyetherimide/Silver (PEI/Ag) composites with unique segregated thermal-conductive network were fabricated via hot-pressing the core–shell (PEI@Ag) particles, which was endowed with superior thermal-conductive ability in bi-directions. By this process, the Ag shell was deposited on the surface of various polymer microsphere, and diverse morphology of composite particles would lead to different findings. The results show the PEI@Ag composites with filler content of 18.9 vol% exhibited high in-plane thermal conductivity and through-plane thermal conductivity of 19.9 and 14.0 W/mK, respectively. Particularly, these results achieved obvious improvements of 331 % and 1264 % higher than the composites with filler random distribution, indicating the composite materials obtained outstanding advantage in both horizontal and vertical direction. The research also found that the composites prepared from PEI@Ag core–shell structures possess better properties than those prepared with Ag nanoparticles growing on polymers, indicating the importance of continuous heat-transfer path, and their heat transfer behavior was further demonstrated by finite element analysis. Besides, the composites also exhibited remarkable EMI shielding performance (40.1 dB)). In a word, this study provides viable strategies to enhance the thermal conductivity of composites based on organic solvent-soluble polymer with EMI capability for the development of electronic devices.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2024
·
IF 10.7
Xiao Liu,Jicong Wang,Fangyuan Zhu,Yanrui Li,Wenchao Tian,Weijia Wang,Ruiyun Guo,Laijun Liu,Jing Shi
Photocatalytic conversion of CO2 into renewable fuels is an exciting and challenging approach to mitigate carbon emissions and energy crisis. The efficiency is hindered by the insufficient carrier transport capacity and high electron-hole pair complexation of catalysts. The inherent spontaneous polarization in ferroelectric materials can affect the generation, transportation, and isolation of intermediates within catalytic reactions in modulating the pace and effectiveness of photocatalytic processes. Herein, ferroelectric bismuth sodium titanate (BNT) decorated by oxygen vacancies (OVs) via in-situ reduction is first explored to promote photocatalytic CO2 reduction reaction (CO2RR). The chemical states and coordination environment of the cations and OVs are elaborated by using the X-ray absorption fine structure to probe weakened Bi-O bonds and enhanced lattice distortion. Besides built-in electric fields originating from intrinsic spontaneous polarization, carrier dynamics and reactive sites are optimized with extended visible light absorption thanks to the special morphology and OVs. Remarkably, defected catalysts show 18 times higher CO reduction yield than pristine BNT, outperforming state-of-the-art bulk ferroelectrics for single photocatalytic CO2RR. Interestingly, the product selectivity can be tailored after a poling treatment. This work provides a systematic approach to designing efficient ferroelectric photocatalysts, and meanwhile expands the ferroelectric photocatalysts family for advancing CO2 conversion.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Fang Yuqi,Li Mingzhao,Wang Zi Jin,Liu Xinyu,Yao Shaowei
Metal Bi is considered as a potential anode material for sodium-ion batteries due to its high theoretical specific capacity and low reaction voltage. However, the volume change (244%) during discharge and charge process seriously affects the cycle stability performance. Under this background, the sheet-like structure bismuth based metal-organic framework (Bi-MOF) precursor is prepared by hydrothermal method, and Bi@C composite material is obtained after heat treatment. Due to the unique sheet-like structure and the addition of carbon, the Bi@C composite material can effectively alleviate the volume change during the discharge and charge process. According to the electrochemical performance test, Bi@C electrode material still has high and stable discharge specific capacity of 392.0 mAh g −1 after 1000 cycles at the current density of 0.5 A g −1 , and has excellent rate performance. This work provides an important reference for the development of Bi-based anode materials for sodium-ion battery.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Guoguan Liu,Shan Zhong,Lishan Zhang,Hangyu Shi,Qian Zhang,Xuan Ru,Yifu Li
This work successfully synthesized Bi@Bi 2 WO 6 with oxygen vacancies (OVs) through chemical etching and systematically revealed the coupling mechanism between OVs and piezoelectric effects. In the piezo-photocatalytic degradation of 2,4-dichlorophenol (2,4-DCP), the 0.1al-BBW sample exhibited the best performance, with an apparent rate constant of 0.05468 min −1 . ERS and PFM characterizations revealed that abundant OVs were introduced by etching, leading to lattice modification and improved piezoelectric polarization. According to density functional theory (DFT) results, the piezoelectric field optimizes charge localization at OVs, strengthens band coupling, reduces carrier recombination, and facilitates the activation of H 2 O and O 2 . Furthermore, Mott-Schottky results and stress-induced simulations (0–8 %) confirmed that both piezoelectric polarization and OVs contribute synergistically to energy band restructuring. Pathway analysis showed that 1 O 2 and h + were the dominant reactive species driving the two main routes of 2,4-DCP decomposition. Overall, this work offers mechanistic insights into OVs coupling with piezoelectric and presents a viable strategy for designing advanced piezo-photocatalysts with multifunctional capabilities.
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
L. Yue,X.Z. Zheng,P.J. Xia,C. Wang,Y.F. Lei,M. Xu,W.B. Dai
Rare-earth (RE) and/or transition metal (TM) ions (co)doped phosphors have garnered much attention for promoting development in the fields of solid state lighting (SSL) and displays. It is a meaningful work to design high-quality phosphor via intelligent assembling from wide variety of compounds with RE/TM ions. Herein, the lanthanum borophosphate La 7 O 6 (BO 3 )(PO 4 ) 2 (LOBP) and Bi/Eu were selected as host and dopants for constructing the phosphor LOBP: Bi/Eu via solid phase synthetic method due to simple synthesis, chemical/thermal stability, rich cationic sites, appropriate bandgap, and controllable optical tuning from synergistic effect of cyan (Bi) and red (Eu) emissions, respectively. The structure and site occupations were analysed via XRD and Rietveld refinements , showing Bi 3+ ions were only resided in La 3+ sites within the monoclinic matrix (P2 1 /n) and appeared greater inclination towards the La sites with coordinate number ( CN ) = 8 as compared with CN = 7 due to the closer ion radius ratio. While Eu 3+ ions entered into the two distinct La sites with almost the same probability. The morphology and elemental mapping were obtained via SEM/EDS, exhibiting irregular particle shape with micron-level size, and the chemical composition met expectation. Through energy transfer (ET) from Bi to Eu under n -UV excitation, the adjustable photoluminescence (PL) from cyan traversing white and finally to red could be achieved. The concentration quenching for both singly- (Bi) and co-doped (Bi/Eu) phosphors were charged by the d-d interactions. Finally, the stable as-fabricated n -UV pumped w LED via coupling the composition-optimized white-emitting LOBP: 2%Bi, 7%Eu to a commercial 305 nm n -UV LED chip shows splendid performances.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）