ADVANCED FUNCTIONAL MATERIALS
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2024
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IF 18.5
Shutong Yang,Weikang Luo,Xianwen Song,Quan Chen,Jingjing Liu,Pingping Gan,Chuntai Liu,Teng Li,Gang Xu,Yi Zhang,Jun Zheng,Yang Wang
The prognosis for traumatic brain injury (TBI) depends largely on prompt hemostasis and effective pharmacologic interventions. Natural all-small-molecule self-gelling powder, integrating the advantages of self-assembled small-molecule hydrogels and powders, is expected to provide timely and effective prehospital management of TBI. However, the synthesis and application of natural all-small-molecule self-gelling powder is still uncharted territory. In this study, an all-small-molecule co-assembled MGF-H 3 BO 3 -RUT (MBR) self-gelling powder is fabricated through the co-assembly of mangiferin (MGF) and rutin (RUT) in H 3 BO 3 /NaOH aqueous solution. Both compounds can bind with boric acid, leading to co-assembling into hydrogels through hydrogen-bonding interactions and π – π stacking. MBR self-gelling powder is then obtained by drying the as-prepared hydrogels, thus integrating hemostasis and pharmacodynamics into one. Remarkably, it displays robust regeneration capabilities, while retaining excellent self-healing properties and injectability after drying-hydration cycles. Moreover, MBR self-gelling powder not only achieves rapid effective hemostasis but also attenuates conspicuously cerebral edema and inflammatory response after TBI by in situ spraying, exhibiting notable neuroprotective effects without discernible toxic side effects. This study provides a novel assembly strategy and application form for self-assembled gel materials originating from natural small molecules, offering promising avenues for the treatment of TBI in the acute phase.
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高影响因子
JOURNAL OF LUMINESCENCE
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2025
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IF 3.6
Pengchao Shen,Xiao Zhang,Gang Yang,Songchao Bai,Chunxiang Zhao,Xueting Wang,Changbo Zheng,Yongsheng Zhu
Lanthanide ions (Ln 3+ ) co-doped lead-free metal halide double perovskites exhibit significant potential in photoluminescence modulation, yet the luminescence synergy mechanism between co-doped Ln 3+ ions needs further exploration. In this study, we systematically investigated the electronic structure properties of the Ln 3+ single-doped (Ln 3+ = Tb 3+ , Eu 3+ , Yb 3+ , Ho 3+ , Er 3+ ) and co-doped (Tb 3+ +Eu 3+ , Yb 3+ +Ho 3+ , Yb 3+ +Er 3+ ) models based on Cs 2 NaYCl 6 double perovskites (DPs) using density functional theory (DFT). The results reveal that appropriate Ln 3+ co-doping further breaks the local symmetry compared with single doping, regulates the ionicity of Na + , and enhances the charge transfer transition of Cl − →Ln 3+ . In addition, co-doping strategies elevate exciton binding energy by approximately 25 %–38 %, promoting exciton radiative recombination. Experimental verification via hydrothermal-synthesized Ho 3+ ,Yb 3+ co-doped Cs 2 NaYCl 6 crystals confirmed a 27.4 % enhancement in absolute photoluminescence quantum yield (PLQY) under 360 nm photoexcitation compared to Ho 3+ single-doped, validating the theoretical prediction of optimized charge-transfer transitions. This study provides a theoretical reference for regulating the luminescence properties of lanthanum ion-doped double perovskite materials.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2025
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IF 9
Chunyu Fan,Liang Lv,Mengfei Liu,Juanjuan Wen,Jun Feng,Xianfu Chen,Minghui Qiu,Yiqun Fan
A co-sintering route for fabricating ZrO 2 /Al 2 O 3 bi-layer ultrafiltration membranes on quartz supports was proposed. By combining the piezoelectric support and the weak capillary force of transition layer, a thin (∼300 nm), narrowly distributed pore size, and built-in ultrasonic antifouling ultrafiltration membrane was prepared. Considering the mechanical strength of the Al 2 O 3 layer and the interfacial bonding, a co-sintering temperature of 950 °C was selected. Meanwhile, a holding step at 600 °C was introduced to alleviate the thermodynamic mismatch between the two layers caused by the phase transition of the support. The membrane maintained excellent piezoelectric response, along with high flux (366 L·m −2 ·h −1 ·bar −1 ), low roughness (11.6 nm), and small pore size (∼16 nm). The antifouling performance of the piezoelectric ultrafiltration membrane was evaluated through filtration experiments of nano-sized water-in-oil emulsions. The stable permeability of the ultrafiltration membrane was 2.8 times higher than that of the support and further increased by 16.4 % when in situ ultrasound is applied, reaching 0.829 in the stable normalized flux ( J/J 0 ). Additionally, after cleaning, the membrane flux was almost completely restored. The piezoelectric ceramic membranes prepared by this method have great potential for oil-water separation.
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高影响因子
BIORESOURCE TECHNOLOGY
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2025
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IF 9
Shaomin Kang,Dongming Wang,Mengyu Ma,Jingjing Liu,Xu Wu,Chuankun Xu,Mingxing Shi,Guolin Tong
Porous carbon (PC), characterized by tunable pore structures and high specific surface area (S BET ), is regarded as an outstanding material for supercapacitors (SCs). Notably, exploiting a gentle strategy to build high-yield-high-performance N/S co-doped hierarchical porous carbons (NSHPCs) faces huge challenges. Herein, we introduced a novel strategy to prepare NSHPCs via KNO 3 -assisted C 4 H 4 O 6 K 2 co-activation craft. Thereinto, NH 4 -kraft lignin, gained by precipitating the black liquor with (NH 4 ) 2 SO 4 , was used as precursors, while C 4 H 4 O 6 K 2 served as the main activator and KNO 3 was the assisted-activator/foaming agent. Compared with T -NSHPC activated by single C 4 H 4 O 6 K 2 , N - T -NSHPC acquired by KNO 3 -C 4 H 4 O 6 K 2 co-activation achieved 31.2 % high yield and unique mesoporous-dominated hierarchical porous structures with a high S BET of 1987.9 m 2 /g, a large pore volume of 1.04 cm 3 /g, 2.40 % N and 2.82 % S, respectively. Electrochemical tests revealed that N - T -NSHPC achieved an outstanding specific capacitance of 338.2 F/g at 0.5 A/g. When assembled as symmetrical SCs, it manifested an impressive energy density of 33.38 Wh/kg at a power density of 500 W/kg. Meanwhile, it retained 98.3 % initial capacitance after 5,000 charge–discharge tests at a high current density of 20 A/g. This insight not only presents a feasible approach to achieve high-value utilization of lignin but also provides a gentle and efficient sight for designing high-yield-high-performance NSHPCs for SCs.
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Hao Lu,Lu Huang,Jingle Chen,Mingfeng Sun,Liguang Wu,Ting Wang
To address the efficient separation of refractory small-molecule pollutants such as p -nitrophenol (PNP) from industrial wastewater, bimetallic Co-Fe hydroxide nanoparticles were synthesized via a reverse microemulsion method and incorporated into polymer matrices. Initial studies on hybrid membranes with polyvinylidene fluoride (PVDF) matrices demonstrated enhanced hydrophilicity (contact angle reduction from 77.7° to 64.9°) and antifouling performance (85 % flux recovery rate), but their large pore size (∼70 nm) limited PNP rejection (22.5 %). To overcome this problem, polysulfone (PSF) was selected as an alternative matrix substrate. By systematically adjusting the film-forming time (15–50 min) during phase inversion, tight ultrafiltration membranes with controlled pore structures were fabricated. Prolonged film-forming time (30 min) optimized the solvent-nonsolvent exchange kinetics of the obtained PSF-3 membrane, yielding a dense selective layer with a narrow pore size distribution (3–8 nm) and molecular weight cut-off. This membrane achieved a PNP rejection rate of 71 % compared to 5 % of the PVDF membrane through synergistic "size sieving-hydroxyl adsorption" while maintaining low salt rejection (<15 %) and high flux stability (<15 % flux decline rate over 6 h). Hydrophilicity (49.6° contact angle) and antifouling performance (85 % flux recovery rate after four cycles) were significantly enhanced by uniformly dispersed nanoparticles. This study highlights the critical role of film-forming time in tailoring membrane architecture and performance, providing a novel strategy for efficient small-molecule separation from saline wastewater.
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高影响因子
KOREAN JOURNAL OF CHEMICAL ENGINEERING
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2025
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IF 3.2
Liu Xilin,Yang Fuwei,Yao Zhiqian,Wang Xuan,Liu Pengfei,Li Jiayin,Zhou Hu
Immobilizing the activator on the carrier is an effective strategy to solve the difficult recovery and secondary pollution of activator in advanced oxidation process. In this study, cobalt–aluminum-layered double hydroxide (activator) was immobilized on a PU membrane carrier (Co–Al-LDH@PU membrane) by a hydrothermal in situ growth technique to form a recyclable peroxymonosulfate (PMS) activator. The as-prepared Co–Al-LDH@PU membrane exhibited an excellent ability to activate PMS for the removal of tetracycline hydrochloride (TC). 97.20% of TC (30 mg L −1 ) was eliminated with Co–Al-LDH@PU membrane (3 × 3 cm 2 ) and 1.6 mM PMS at pH 5.5 in 30 min. Singlet oxygen ( 1 O 2 ) was verified as dominant reactive oxygen species responsible for TC removal via quenching tests. Mechanism investigation suggested that the redox cycle of Co 2+ /Co 3+ on the surface of Co–Al-LDH@PU membrane was crucial for PMS activation. Meanwhile, Co–Al-LDH@PU membrane displayed the ideal reusability and versatility.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
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IF 4.3
Tingyong Wang,Xiaoxian Hu,Shenghan Huang,Zhixiong Zhuang,Xiaohua Deng,Rantao Dong,Wenjing Song,Quanxing Zheng,Weikun Lai
The co-upcycling of waste plastics and biomass presents a promising strategy for sustainable carbon utilization; however, the presence of polyvinyl chloride (PVC) often complicates this process due to chlorine-induced catalyst poisoning. Herein, an ionic liquid-assisted biphasic dichloromethane/water system is reported that transforms this challenge into an advantage by using in situ -generated HCl from PVC dechlorination to catalyze biomass conversion. Employing 1-butylpyridinium chloride ([Bpy]Cl) as a synergistic catalyst, exceptional yields of furfural (85.5 %) and 5-methylfurfural (62.8 %) were achieved from waste tobacco stalks under optimized conditions (140 °C, 8 h, 2.5 wt% PVC). This ionic liquid-PVC system demonstrated remarkable stability, maintaining > 85 % furfural yield over six consecutive cycles, and was successfully extended to corn stover mixtures with comparable efficiency. Mechanistic studies revealed that [Bpy]Cl serves dual functions: (1) accelerating PVC dehydrochlorination through nucleophilic chloride attack, and (2) facilitating the cleavage of β-1,4-glycosidic bonds in cellulose/hemicellulose, thereby enhancing acid-catalyzed sugar conversion to furfurals. This work establishes a novel paradigm for simultaneous waste valorization, achieving complete chlorine utilization from PVC while converting agricultural residues into valuable chemicals, with significant implications for circular economy implementation.
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高影响因子
CRYSTENGCOMM
·
2025
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IF 2.6
Feng Jiao,Jinzhao Huang,Zehui Liu,Yu Zhang,Xiaolong Deng,Ke Zhang,Guixin Zhao
In this paper, sodium sulfite (Na₂SO₃) and cerium nitrate (Ce(NO₃)₃) were added in the hydrothermal method for the preparation of FeCo LDH, and needle-like Ce-FeCo LDH (NS) catalysts were grown in situ on a carbon cloth.The additions of Na₂SO₃ and Ce(NO₃)₃ regulated the electron transfer of the metal cations in the LDH, and significantly improved the performance of the catalysts. The prepared Ce-FeCo LDH (NS) catalysts exhibited excellent electrochemical properties. The overpotential of OER was 221 mV at a current density of 10 mA/cm² in 1 M KOH. The surface structure and catalytic performance of the catalysts were maintained well after 100 h stability test. This study provides a new idea for the improvement and design of OER catalysts based on FeCo LDH, which is an important reference for clean energy research.
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高影响因子
ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Zheheng Jiang,Wei Liu,Muzammil Hussain,Hao Sun,Yun Kuang,Yaping Li,Wen Liu,Daojin Zhou,Xiaoming Sun
Developing efficient and stable oxygen evolution reaction (OER) electrocatalysts is vital to advancing the expansion of water-splitting for green hydrogen production. However, the high overpotential and unsatisfactory stability of electrocatalysts have been significant obstacles. Herein, hydrothermal and cathodic electrodeposition are utilized to prepare an atomically dispersed Ir-doped Co3S4 electrocatalyst (Ir–Co3S4) as precatalysts, exhibiting a record-low overpotential (158 mV at 10 mA cm–2) and ultrahigh stability (1000 h at 100 mA cm–2) in 1 M KOH after activation, making it one of the best-performing OER anodes. In situ characterizations and theoretical calculations demonstrated that Ir–Co3S4 undergoes a precatalytic evolution of sulfur–oxygen exchange to form a dual-anionic coordination environment, which is conducive to enhancing the activity of CoOOH formation at operating voltages. Ir–Co dual active sites in Ir–Co3S4/CoOxHy could trigger the OER via a kinetically advantageous oxide coupling mechanism (OCM). Furthermore, in conjunction with the Raman findings, the molecular dynamics simulations demonstrate that the SO42– generated by the electrode exerts a role in repelling Cl– through dense coverage and electrostatic repulsion, demonstrating the potential being used in saline-alkaline water splitting. This work proposes combining single noble metal atoms with economically efficient metal sulfide catalysts and presents a rational design approach for hydrogen production electrocatalysts.
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高影响因子
JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Jian Fan,Chunyan Cao,Lan Shang,Liangjie Yuan
High-nickel layered oxide LiNi 0.9 Co 0.1 O 2 is a promising cathode material for lithium-ion batteries due to its high specific capacity and low cost. However, the internal stress generated during deep delithiation can cause microcracks, giving rise to rapid capacity decay and deteriorated thermal stability. In this work, Mg and Al ions are incorporated into the bulk phase of LiNi 0.9 Co 0.1 O 2 via high-temperature solid-state reaction. We demonstrate that Al 3+ doping enhances charge transfer between transition metal (TM) and oxygen layers, strengthening TM-O bonds and stabilizing the structure, thereby alleviating structural distortions under deep delithiation. More impressively, Mg 2+ doping significantly improves structural stability through a pillaring effect, effectively suppressing irreversible phase transitions during charge-discharge cycling. Consequently, Mg-Al co-doping optimizes the overall structural integrity of the high-nickel cathode, enhances its stability, and inhibits lattice oxygen release during long-term cycling. The Mg-Al co-doped LiNi 0.9 Co 0.1 O 2 delivers a remarkable capacity of 177.3 mAh g −1 after 100 cycles with capacity retention of 93.5 %, demonstrating outstanding cyclability. This Mg-Al co-doping strategy provides a simple and practical approach to enhance the electrochemical performance of high-nickel layered cathode materials.
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高影响因子
APPLIED SURFACE SCIENCE
·
2025
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IF 6.9
Zhengyi Zhao,Yanzhi Yang,Xin Yu,Minghong Long,Zhiyong Yan,Zhonghe Xu,Xuechun Xiao
Zeolitic imidazolate framework (ZIF) address the longstanding challenge in ammonium perchlorate (AP) catalysis by simultaneously enhancing catalytic performance and heat release, owing to their high specific surface area, abundant nitrogen-rich ligands, and unique metal dispersion architecture. In this study, various metal-incorporated ZIFs were synthesized via a classical method, among which Co-ZIF exhibited optimal catalytic activity. Performance evaluations demonstrated that Co-ZIF significantly reduced the high-temperature decomposition peak by 171.4 °C (from 471.4 °C for pure AP to 300.0 °C). The activation energy ( E a ) decreased from 301.8 kJ·mol −1 to 169.9 kJ·mol −1 . Notably, the nitrogen-rich ligands within ZIFs contributed substantial heat release during AP decomposition (increasing from 888.3 J·g −1 to 2066.8 J·g −1 ). Through TG/DTG, XRD, FT-IR, and Raman analyses of the Co-ZIF + AP composite system at 280, 290, and 300 °C, we elucidated the in-situ pyrolysis process of Co-ZIF during AP thermal decomposition. The investigation confirmed the progressive decomposition of Co-ZIF and the in-situ formation of Co 3 O 4 /N-doped carbon composites, which actively participated in catalyzing AP decomposition. Based on these findings, a stage-specific catalytic mechanism was proposed, providing new insights for the application of MOF materials in AP decomposition research.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Hongtao Liu,Jiawei Wen,Lei Cao,Junlian Wang,Xin Wang,Guoyong Huang,Shengming Xu
Conventional phosphonic acid extractants such as bis (2-ethylhexyl) phosphate (P204) have only been used for cobalt extraction and perform poor separation efficiency. In this work, we propose a route to synergistically extract and separate Co, Mo, and V from spent hydrogenation catalysts by utilizing the modulating effect of ethanolamine (MEA) on phosphonic acid-based extractants, which eliminates the need for saponification and acidification of the extractants. The extraction mechanism of V, Co and Mo have been explained detailedly. By performing quantum chemical calculations on the surface properties of various amines, their metal extraction effects were predicted and validated using machine learning, laying the foundation for the design of synergistic extractants. The Co/Mo/V selective separation process was finally built with the aim of extracting cobalt first in the form of Co(RNH 2 ) 2 A 2 . At a P204 concentration of 25 %, MEA addition of 5 %, stirring time of 10 min, stirring rate of 400 rpm, the combined recoveries of the three metals Co, V and Mo reached 94.56 %, 85.60 % and 88.81 %, the separation factors β Co/Mo and β Co/V could be increased up to 44748.77 and 1174.04, respectively. It was also demonstrated that the extractant was also suitable for the selective extraction of Ni 2+ . This work provided fundamental research for the development of high-performance extraction systems.
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高影响因子
危险品化学品经营许可证（带存储）