JOURNAL OF SOLID STATE CHEMISTRY
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2025
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IF 3.5
Yanli Zhang,Jiale Zhao,Simeng Zeng,Zixuan Liu,Bo Wang,Fuhua Lin
In this paper, a novel Cu/F co-doping strategy is proposed to modify the electrochemical performance of Sr 2 Fe 1.5 Mo 0.5 O 6– δ (SFM) cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The pristine SFM, Cu-doped Sr 2 Fe 1.4 Cu 0.1 Mo 0.5 O 6− δ (SFCM) and Cu/F co-doped Sr 2 Fe 1.4 Cu 0.1 Mo 0.5 O 5.9− δ F 0.1 (SFCMF) powders were synthesized by acid-glycine combustion method, and the impacts of Cu/F co-doping on the performance of SFM cathode were investigated systematically. It's found that Cu-doped SFCM has higher oxygen vacancy content and electrical conductivity than the pristine SFM and Cu/F co-doped SFCMF cathodes. While the Coulombic force between B-sites metallic ions and oxygen ions are significantly weaken for SFCMF, enhancing the mobility of lattice oxygen. Due to the combined effects of Cu and F doping, SFCMF cathode exhibits the best electrochemical performance among all investigated samples. At 600 °C, the polarization resistant for SFCMF cathode is 1.79 Ω cm 2 , decreased by 43.71 % in contrast to the parent SFM cathode. These results indicate that Cu/F co-doping is an effective strategy to improve the electrochemical properties of perovskite cathode materials.
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高影响因子
Nanomaterials
·
2025
·Vol. 15
·期 16
·1238
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IF 4.3
Bingbing Zheng,Shuaigang Ge,Lingli Chen,Yijia Wen,Kaihuang Huang,Bingsuo Zou
Cd-based perovskite materials have the advantages of high emission efficiency and tunable emission, as well as broad application prospects in the field of optoelectronics. However, achieving multimode dynamic luminescence under UV light excitation in a single system is a great challenge. Here, we successfully prepared Sb3+/Pb2+co-doped Cs7Cd3Br13crystals by a simple hydrothermal method. Tunable emission from orange to white and then to blue, covering the wavelength range between 370 and 800 nm, was achieved by varying the doping concentration of Pb2+ions in Cs7Cd3Br13:0.5%Sb3+. Temperature-dependent photoluminescence (PL) spectra and density functional theory (DFT) calculations confirm that the wide-band white-light emission of Cs7Cd3Br13: Sb3+/Pb2+crystal comes from the first self-trapped exciton (STE1) of undoped Cs7Cd3Br13intrinsic capture state and the emission of free excitons (FEs) and STE2 induced by the confining effect and the Jahn–Teller effect by Pb2+incorporation, as well as the Sb triplet self-trapped exciton (STE3). More specifically, the samples with the best co-doped ratio exhibit significant excitation-wavelength-dependent luminescence characteristics and can realize the conversion of the emission color from white and blue to orange. Based on the tunable emission characteristics of three emission colors, the material has good prospects in encryption and anti-counterfeiting applications. This work provides a new strategy for the application of Cd-based halides in the field of anti-counterfeiting.
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高影响因子
Foods
·
2025
·Vol. 14
·期 15
·2629
·
IF 5.1
Xian-Ni Su,Yu-Yang Wang,Muhammed Fahad Khan,Li-Na Zhu,Zhong-Liang Chen,Zhuo Wang,Bing-Bing Song,Qiao-Li Zhao,Sai-Yi Zhong,Rui Li
Background:During food processing and storage, traditional protein-based delivery systems encounter significant challenges in maintaining the structural and functional integrity of bioactive compounds, primarily due to their temporal instability.Methods:In this study, a nanocomposite hydrogel was prepared through the co-assembly of a self-assembling peptide, 9-Fluorenylmethoxycarbonyl-phenylalanine-arginine-glycine-aspartic acid-phenylalanine (Fmoc-FRGDF), and hyaluronic acid (HA). The stability of this hydrogel as a quercetin (Que) delivery carrier was systematically investigated. Furthermore, the impact of Que co-assembly on the microstructural evolution and physicochemical properties of the hydrogel was characterized. Concurrently, the encapsulation efficiency (EE%) and controlled release kinetics of Que were quantitatively evaluated.Results:The findings indicated that HA significantly reduced the storage modulus (G′) from 256.5 Pa for Fmoc-FRGDF to 21.1 Pa with the addition of 0.1 mg/mL HA. Despite this reduction, HA effectively slowed degradation rates; specifically, residue rates of 5.5% were observed for Fmoc-FRGDF alone compared to 14.1% with 0.5 mg/mL HA present. Notably, Que enhanced G′ within the ternary complex, increasing it from 256.5 Pa in Fmoc-FRGDF to an impressive 7527.0 Pa in the Que/HA/Fmoc-FRGDF hydrogel containing 0.1 mg/mL HA. The interactions among Que, HA, and Fmoc-FRGDF involved hydrogen bonding, electrostatic forces, and hydrophobic interactions; furthermore, the co-assembly process strengthened the β-sheet structure while significantly promoting supramolecular ordering. Interestingly, the release profile of Que adhered to the Korsmeyer–Peppas pharmacokinetic equations.Conclusions: Overall, this study examines the impact of polyphenol on the rheological properties, microstructural features, secondary structure conformation, and supramolecular ordering within peptide–polysaccharide–polyphenol ternary complexes, and the Fmoc-FRGDF/HA hydrogel system demonstrates a superior performance as a delivery vehicle for maintaining quercetin’s bioactivity, thereby establishing a multifunctional platform for bioactive agent encapsulation and controlled release.
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高影响因子
MOLECULES
·
2025
·Vol. 30
·期 16
·3388
·
IF 4.6
Shefeng Li,Pengyi Zhao,Ziyang Liu,Chang Wang,Linling Wang,Siyu Ding
Microwave-assisted processing has shown tremendous promise in accelerating chemical reactions and reducing energy consumption through targeted dielectric heating. This study develops MOF-derived Mn-Co and Ce-Co oxide catalysts for energy-efficient benzene oxidation via microwave catalysis. The MnCo spinel oxides (particularly MnCo11-400) exhibit superior microwave absorption and catalytic activity due to enhanced oxygen mobility and tailored dielectric properties. Microwave irradiation enables rapid benzene mineralization over the MnCo11-400 catalyst, achieving 78% conversion at 30 W and complete conversion at 50 W, demonstrating exceptional energy efficiency at low power inputs. Microwaves significantly lower the reaction temperature compared to conventional thermal catalysis (ΔT = 100–250 °C). Stability tests confirm robustness over repeated power cycling (80% conversion retained after 3 × 1 h on/off cycles). Furthermore, an adsorption–microwave oxidation synergistic strategy is demonstrated: pre-adsorbed low-concentration benzene (1.15 mmol) at ambient temperature undergoes complete mineralization within 20 min under 30 W microwave irradiation. The intermittent microwave operation achieves equivalent benzene removal to continuous thermal processing while significantly reducing energy demand. This work establishes MOF-derived spinel oxides as high-performance microwave catalysts for low-temperature VOC abatement.
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高影响因子
MOLECULES
·
2025
·Vol. 30
·期 17
·3475
·
IF 4.6
Xiaoqian Xu,Song Yang,Yixiang Wang,Ying Chen,Assa Aravindh Sasikala Devi,Feng Hu
Silver is a promising electrocatalyst for electrochemical CO2reduction reaction owing to its high selectivity and efficiency for CO production. However, it still faces a fundamental trade-off between reaction activity and stability. Here, we developed a three-dimensional coral-like porous silver (CP-Ag) catalyst through seed-assisted nanoparticle attachment synthesis, which creates a unique architecture featuring interconnected pores and stable grain boundaries (GBs) between constituent Ag nanoparticles (Ag NPs). Compared to normal Ag NPs, CP-Ag demonstrates superior catalytic performance, maintaining >90% Faradaic efficiency (FE) for CO across a wide potential range (−0.6 to −1.0 V vs. RHE) while achieving 2-times higher current density. Importantly, CP-Ag demonstrated an impressive long-term stability by sustaining nearly 90% FE for CO approximately 40 h at a current density of −50 mA cm−2in a flow cell. The enhanced catalytic performance arises from three factors: (1) the three-dimensional coral-like morphology increases accessible active sites and promotes charge transfer efficiency; (2) stable GBs between interconnected nanoparticles increase reaction activity; (3) more moderate binding on Ag (100) preferentially promotes *CO intermediate formation. Our findings highlight the importance of simultaneously engineering both morphological and crystallographic features to optimize silver catalysts for CO2conversion.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yue Zhang,Jianwen Peng,Xinyu Bu,Hongda Zhou,Junqi Ning,Xinyue Xu,Ziheng Bai,Yanji Zhu,Huaiyuan Wang
Hypothesis Photovoltaic (PV) panels, the cornerstone of solar energy conversion, are vulnerable to performance degradation caused by surface fogging and contamination accumulation. Although superhydrophilic coatings have been explored to address these issues, their application remains constrained by their singular functionalities. Surfactant assemblies, owing to their amphiphilic molecular structures and capacity for interfacial modulation, emerge as promising candidates for maintaining the photoelectric conversion efficiency (PCE) of PV panels under variable humidity conditions. Experiments Here, the sodium dodecylbenzenesulfonate (SDBS) containing sulfonate (SO₃ 2− ) groups and acidic silica sol were co-assembled to construct a superhydrophilic and highly transparent coating with nanoporous structure, the coating significantly improved the PCE of PV panels under variable humidity conditions. We evaluated the coating properties were characterized by measuring the water contact angle (WCA) and visible light transmittance (VLT). Findings This work presents a novel approach to surface functionalization for PV panels through the creation of a surfactant-silica nanoporous (SSN) coating, formed via the co-assembly of SDBS and TEOS under acidic conditions. The synergistic effects of the nanoporous structure and SO₃ 2− groups impart superhydrophilic and unifies anti-reflection, antistatic, self-cleaning, and antifogging properties within a single coating. These features led to a significant enhancement in PCE under variable humidity. Importantly, the coating is fabricated through a simple, scalable process, positioning it as a highly innovative and practical solution for PV performance enhancement and paving the way for new roles of surfactant assemblies in renewable energy systems.
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高影响因子
Sustainable Materials and Technologies
·
2025
·
IF 9.2
Shiyu Huang,Deqi Fan,Chengxiao Zhao,Xin Li,Xiaofei Yang
The photocatalytic conversion of anthropogenic carbon dioxide (CO 2 ) into solar fuels using semiconductor nanomaterials represents a promising and sustainable approach to addressing both energy sustainability and climate change concerns. Developing highly efficient semiconductor-based photocatalysts to tailor reaction pathways of CO 2 reduction is the key to producing value-added products with desirable performance. Herein, we report a novel copper-doped indium oxide (Cu-doped In 2 O 3 ) nanostructure prepared via the electrospinning technique, followed by annealing to enhance photocatalytic CO 2 reduction. Our findings demonstrate that modifying the bulk In 2 O 3 with copper enables Cu-doped In 2 O 3 nanofibers to catalyze the CO 2 reduction reaction more efficiently. In situ FTIR spectra measurements were utilized to identify the reaction intermediates and gaseous products for validating the reaction pathway. Combined with in situ electron paramagnetic resonance (EPR) and vibrational spectroscopy measurements, which revealed that interstitial Cu doping induces lattice distortions and oxygen vacancy (O V ) formation, effectively enhancing visible light absorption, accelerating charge separation, and migration. Consequently, the optimized In 2 O 3 -Cu3% nanofiber photocatalyst demonstrated outstanding selectivity (100 %) and a CO production rate of 45.5 μmol·g −1 ·h −1 , which is approximately six times higher than In 2 O 3 . Mechanistic studies have indicated that O V defects serve as electron reservoirs to suppress the recombination of photogenerated charges, while simultaneously creating abundant CO 2 chemisorption sites in nanostructures.
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高影响因子
PHYTOMEDICINE
·
2025
·
IF 8.3
Xiaoyu Tao,Yifei Gao,Zhengsen Jin,Shan Lu,Zhiqi Li,Siyu Guo,Qiqi Fan,Jiaqi Li,Chuanqi Qiao,Huiling Lei,Zhiqiang Zhang,Chongjun Zhao,Jiarui Wu
Background The combined therapeutic mechanisms of evodiamine (EVO) and berberine (BBR), which are the primary bioactive components contributing to the pharmacological effects of Euodiae Fructus and Rhizoma Coptidis , a classic herb pair used for colitis, have not yet been fully elucidated Purpose This study aimed to investigate the critical mechanisms by which co-administration EVO and BBR mitigated EVO-induced hepatotoxicity while exerting therapeutic effects against colitis. Methods Safety and therapeutic outcomes of EVO alone and combined BBR were validated in normal and colitis models. RNA-seq sequencing was performed on liver and colon tissues from different groups, while metagenomic sequencing was utilized to analysis fecal samples. An integrated bioinformatics analysis of transcriptomic and metagenomic data was conducted to reveal the mechanisms underlying EVO-induced hepatotoxicity and the protective and synergistic effects of BBR against colitis. Molecular biology experiments were employed to validate the regulatory mechanism, with a particular emphasis on the interactions within the gut- liver axis, including those related to lipid metabolism and inflammatory pathways. Results BBR attenuated EVO-induced hepatotoxicity in C57 mice by ameliorating pathological injuries and hepatic steatosis as well as inhibiting abnormal AST/ALT elevation, thereby revealing its hepatoprotective effects. In colitis mice, the combination therapy exhibited enhanced efficacy in reducing mucosal damage, restoring goblet cells populations, and suppressing pro-inflammatory cytokines production compared to monotherapy. Integrated analysis of RNA-seq combined with experimental validation revealed that EVO-induced hepatotoxicity was associated with the disrupted fatty acid β-oxidation and cholesterol synthesis homeostasis. Notably, co-administration of BBR effectively rescued metabolic disturbance through modulating core regulatory targets such as ACSL1, CPT1B, SQLE, DHCR7. Additionally, the combination treatment synergistically inhibited IL-17/NF-κB signaling, upregulated tight junction proteins, and rectified gut microbiota dysbiosis, thereby alleviating intestinal injury in colitis mice. Furthermore, ACSL3, a central regulator of fatty acid β-oxidation, was identified as a pivotal target through which the combination of EVO combined BBR suppressed lipid peroxidation-mediated activation of IL-17/NF-κB, leading to alleviate inflammation in LPS-induced NCM460 cell. Conclusion ACSL3 was identified as the critical therapeutic target through underlying the amelioration of fatty acid metabolism-mediated inflammatory injury in colitis by the combined administration of EVO and BBR, thereby offering a scientific foundation for precise and safe clinical drug administration.
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高影响因子
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
·
2024
·
IF 1.9
Xiaoyu Yin,Yufan Zhao,Peng Guo,Peng Wu,Chao Chen,Aiming Zhang,Jiali Liao,Yuanyou Yang,Ning Liu,Tu Lan
The presence of carbonates or humic substances (HS) will significantly affect the species and chemical behavior of U(VI) in solution, but lacking systematic exploration of the coupling effect of carbonates and HS under near real environmental conditions at present. Herein, the sorption behavior of U(VI) on illite was systematically studied in the co-existence of carbonates and HS including both humic acid (HA) and fulvic acid (FA) by batch technique. The distribution coefficients ( K d ) increased as function of time and temperature but decreased with increasing concentrations of initial U(VI), Ca 2+ , and Mg 2+ , as well as ion strength . At pH 2.0–10.5, the K d values first increased rapidly and then decreased visibly, with its maximum value appearing at pH 5.0, owning to the changes in the interaction between illite and the dominant species of U(VI) from electrostatic attraction to electrostatic repulsion. The sorption was a heterogeneous, spontaneous, and endothermic chemical process, which could be well described by pseudo-second-order kinetic and Flory-Huggins isotherm models. When carbonates and HA/FA coexisted, the K d values always increased first and then decreased as a function of pH, with the only difference for HA and FA being the key pH (pH key ) at which the promoting and inhibiting effects on the sorption of U(VI) onto illite undergo a transition. The carbonates and HS have a synergistic inhibitory effect on the U(VI) sorption onto illite at pH 7.8. FTIR and XPS spectra demonstrated that the hydroxyl groups on the illite surface and in the HS were involved in U(VI) sorption on illite in the presence of carbonates. These results provide valuable data for a deeper understanding of U(VI) migration in geological media.
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Journal of Environmental Chemical Engineering
·
2025
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IF 7.2
Zhengyong Song,Shuming Wen,Qian Zhang,Zhihao Shen,Guang Han,Qicheng Feng
Combined collectors are widely used in mineral flotation. However, in the field of copper oxide mineral flotation, theoretical research on combined collectors is relatively scarce, especially the combination of chelating agents and xanthates. Herein, this study systematically investigated the flotation performance and related potential adsorption chemical essence of sodium butyl xanthate (SBX), 2-mercaptobenzothiazole (MBT), and their combined collectors on sulfidized azurite. Micro-flotation results demonstrated that the low-dosage combination collector system of SBX/MBT can effectively improve the flotation recovery of sulfidized azurite. Surface tension results indicated that the combined collectors had higher surface activity than the single collector, thus exhibiting better foam stability. LEIS, SEM-EDS and contact angles analysis demonstrated that compared with single collector, the combined collectors could adsorb more uniformly on the surface of sulfidized azurite, effectively improving its hydrophobicity. ToF-SIMS and XPS further demonstrated that MBT adsorbed on azurite by bonding its S and N atoms with Cu atoms of sulfidized azurite to form the surface MBT-Cu complexes. Combined with the results of adsorption capacity tests, further analysis indicated that the combined collectors of SBX and MBT may have achieved co-adsorption by forming a mixed-ligand complex on the surface of sulfidized azurite, which enhanced the adsorption density and stability of the collector on the surface of sulfidized azurite.
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Yuning Fan,Wenqian Zhang,Yaping Geng,Jiangjun Lin,Yefei Su,Kai Teng,Jiajie wu,Qing Qu,Lei Li
Singlet oxygen ( 1 O 2 ) is an efficient reactive oxygen species that, due to its relatively long lifetime and broad pH adaptability, has been considered an excellent alternative to free radicals in advanced oxidation processes. However, achieving sustained 1 O 2 generation and its effective degradation of target pollutants remains challenging. In the present study, a facile co-precipitation–calcination–microwave approach was employed, incorporating Biscogniauxia mediterranea metabolites to promote the formation of zero-valent cobalt. Consequently, a highly dispersed cobalt nanocluster catalyst (Co@NC-800-MW) was successfully prepared, which markedly enhanced the catalyst’s electron-transfer efficiency. Density functional theory calculations of adsorption energies indicated that 1 O 2 generation was thermodynamically favored. Electron paramagnetic resonance (EPR) measurements demonstrated that Co@NC-800-MW maintained continuous 1 O 2 production and played a central role in the degradation of ciprofloxacin (CIP), exhibiting high catalytic efficiency over a wide pH range (3.0–9.0). Furthermore, continuous-flow experiments confirmed the catalyst’s stability: after treating 500 mL of actual water sample with 10 mg of Co@NC-800-MW, the CIP removal rate remained at 80 %. In addition, ecotoxicity tests revealed that the treated water exhibited significantly reduced biological toxicity. These findings provide important theoretical support for the application of advanced oxidation technologies in practical water pollution remediation.
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高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Tao wang,Nan Yang,Changyu Duan,Longyun Li,Yuetong Cao,Ke Wang,Zhongqi Zhu,Genlin Zhang,Yumin Zhang,Qingju Liu,Jin Zhang
Acetone, a critical biomarker in exhaled breath for the diagnosis of diabetes, necessitates the development of high-performance gas sensors for real-time monitoring. In this work, bimetallic In 2 O 3 /Co 3 O 4 porous nanorods with tunable In/Co molar ratios were synthesized via a hydrothermal approach. The optimized sensor 3-ICO (In:Co = 3:10, molar ratio), exhibited remarkable acetone-sensing performance with a high response of 125.6 to 10 ppm acetone at 250 °C, ultrafast response/recovery times (45 s/19 s), outstanding selectivity, and long-term stability. The integration of materials characterization with density functional theory (DFT) simulations demonstrated that the p-n heterojunction formed between Co 3 O 4 and In 2 O 3 facilitates interfacial charge transfer, enhancing both the oxygen vacancy concentration and specific surface area. These synergistic effects significantly improve acetone adsorption energy and electron transport efficiency. This work highlights the pivotal role of heterojunction engineering in optimizing the detection performance of metal-oxide semiconductors for low-concentration volatile organic compounds (VOCs), offering promising applications in non-invasive diabetes diagnosis.
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