APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Shizong Wang,Jianlong Wang,Bo Lai
This study investigated the role of support-driven coordination environments in regulating peroxymonosulfate (PMS) activation by single-atom cobalt catalysts. Atomically dispersed cobalt was anchored on graphene oxide (Co/GO) and silica (Co/SiO 2 ) to compare their catalytic pathways and stability. Both catalysts enabled efficient degradation of sulfamethoxazole (SMX), achieving mineralization efficiencies of 36.4 % for Co/GO and 42.7 % for Co/SiO 2 after 60 min. Co/SiO 2 also showed superior structural stability and reduced cobalt leaching during reaction. Mechanistic studies revealed that Co/GO favored the direct formation of Co(IV)=O species, whereas Co/SiO 2 promoted surface-bound radicals, which is attributed to its higher cobalt coordination number and stronger metal-support interactions. Furthermore, both catalysts were incorporated into polyvinylidene fluoride membranes, which maintained high SMX removal efficiency during 7 days of continuous operation with real municipal wastewater. These findings underscore the crucial role of support effects in tailoring PMS activation and offer insights for designing stable single-atom catalysts for water treatment.
✓ 已验证
产品关联
DOI
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.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2025
·
IF 3.8
Chongyang Chen,Benshuang Sun,Bingxue Han,Lijia Chen,Bin Wu,Chengduo Wang,Zhijun Wang
Indium zinc oxide (IZO) ceramic targets have been extensively studied due to the advantage of high film mobility and controllable resistivity. As the base materials used for IZO ceramic targets, it is crucial to synthesize IZO composite nanoparticles by an effective technique. Herein, praseodymium (Pr)-doped IZO composite nanoparticles are fabricated by co-precipitation method. The influencing factors for the synthesis of the composite nanoparticles are analyzed, and the nanoparticles show the best properties of most uniform particle shape, size, and elemental distribution under the preparation conditions of ammonia or sodium hydroxide as an alkaline precipitant, pH of 7, and sintering temperature of 800°C. The phase composition, micro-morphology, compositional homogeneity, and chemical bonding and functional group changes of precursors and sintered particles are analyzed. Meanwhile, combined with the thermogravimetric - differential scanning calorimetry (TG-DSC) analysis of the decomposition process of the hydroxide precursor during heating, the crystallization activation energy for the transformation of the precursor from the amorphous to the crystalline state was calculated by the Kissinger and Ozawa method. Based on the concept of crystallization fraction, the crystallization mechanism of the mixed particles of precursors is explored. In addition, ceramic targets prepared from the IZO nanoparticles by this method exhibit excellent uniform elemental distribution and fine grain (<4 µm), high density (>99%), and low resistivity (<4 mΩ·cm). This work provides an efficient strategy for the preparation of IZO composite nanoparticles for applications in advanced photoelectric ceramic targets.
✓ 已验证
产品关联
DOI
高影响因子
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.
✓ 已验证
产品关联
DOI
PubMed
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.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
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.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Chunyan Fan,Xuxin Song,Yao Tang,Zehao Zang,Yangyang Ren,Lanlan Li,Xiaofei Yu,Xiaojing Yang,Zunming Lu,Xinghua Zhang
Designing catalysts that simultaneously optimize both hydrogen and oxygen evolution reaction (HER and OER) emerges as a critical materials challenge. Co(OH)₂ is recognized as an effective OER electrocatalyst, but the low HER activity limits its application in overall water splitting. In this work, we synthesized sulfur (S) and selenium (Se) doped Co(OH) 2 catalysts with significantly enhanced HER activity using an electrochemical deposition method. The S-Co(OH) 2 and Se-Co(OH) 2 catalysts own low HER overpotentials of 48 mV and 59 mV at 10 mA cm −2 . And they require 1.56 V and 1.64 V at the same current density for water splitting, the sustain stable performance for > 100 h at current densities (100 mA cm −2 ) show their practical durability. Density Functional Theory (DFT) calculations and experimental results reveal that non-metal doping induces electronic reconfiguration of Co and optimizes the ΔG H* value for intermediate formation, thus accelerating hydrogen generation and enhancing the intrinsic HER activity. This work presents an effective strategy for incorporating non-metal elements into transition metal-based catalysts, and provides insight to boost HER intrinsic activity and achieve bifunctional catalytic performance for water splitting.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE ENERGY INSTITUTE
·
2025
·
IF 6.2
Haoxin Jiang,Yuyan Zheng,Zhuoya Dong,Hui Ming,Xuqiang Guo,Lihua Cheng,Libo Zhang
The co-pyrolysis of petroleum coke with lignocellulosic biomass components offers a promising route for the high-value utilization of petroleum-refining by-products and sustainable biomass conversion. This study employs coupled Thermogravimetric analysis-Fourier-transform infrared spectroscopy (TGA-FTIR) to systematically examine the co-pyrolysis behaviour and interaction mechanisms between petroleum coke and model lignocellulosic components (cellulose, hemicellulose and lignin) across the temperature range 30–850 °C at heating rates of 5, 10, 15 and 20 °C·min −1 . The results demonstrate that the cellulose–petroleum coke system exhibits optimal volatile-release kinetics at 10 °C·min −1 , with a diffusion coefficient (D = 9.65 × 10 −10 min −2 °C −3 ) and a maximum mass-loss rate (DTG max = −1.47 %·min −1 ). In contrast, the lignin–petroleum coke system shows pronounced synergistic effects at high temperatures (>600 °C), as supported by activation energies of 57.60–84.14 kJ mol −1 and Gibbs free-energy changes (ΔG = 72.23–98.01 kJ mol −1 ), indicating catalytic and flame-retardant potential. Mechanistic insights reveal that lignocellulosic components exert phase-dependent modulation on pyrolysis dynamics, suppressing petroleum-coke hydration, fine-tuning volatile-diffusion kinetics and facilitating graphitization via co-carbonization pathways. These findings provide a scientific basis for the precise engineering of pyrolysis-product characteristics and advance the development of tailored thermochemical conversion strategies.
✓ 已验证
产品关联
DOI
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.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2025
·
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.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Changsong Chen,Xusheng Yang,Zhiyong Fu,Le Zhou,Bin Xu,Kaiming Zhang,Shengbin Zhou,Limei Zhou,Weidong Jiang
Traditional hydrogenation requires noble metal catalysts and harsh conditions. To overcome these intrinsic drawbacks, herein, sulfur-doped Co3O4–CuO/CNS bicomponent nanocomposites were prepared using S-modified chitosan (CNS) as a template via the precipitation method. The experimental results demonstrated that the incorporation of sulfur (S) significantly enhanced the synergistic effect of the Cu–Co-based bimetallic system, thereby improving catalytic activity. Notably, Co3O4–CuO/CNS-10 exhibited remarkable catalytic performance in the hydrolytic dehydrogenation of sodium borohydride, achieving a hydrogen generation rate (HGR) of 357.9 mL·min–1·g–1cat. Furthermore, Co3O4–CuO/CNS effectively catalyzed the tandem hydrogenation reduction of m-nitrobenzene (m-CNB) to m-nitroaniline (m-CAN) in the presence of sodium borohydride (NaBH4), as evidenced by an m-CAN yield of up to 99.80% under highly mild conditions. Also, Co3O4–CuO/CNS-10 displayed high chemoselectivity and regioselectivity for the reduction of various aromatic nitro compounds containing potential reactive functional groups. The doping of sulfur promotes the bimetallic Cu–Co synergistic effects accompanied by the increases of the Co2+/Co3+ ratio and enriches oxygen vacancy defects on the surface, thereby enhancing the catalytic activity of the screened heterogeneous catalyst. This work highlights the key role of sulfur and provides an innovative strategy for elevating the catalytic reactivity of bimetallic nanocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
Food Bioscience
·
2025
·
IF 5.9
Kaize Zheng,Xueling Qin,Lingchun Meng,Yusheng Liang,Junwei Qin,Zhenqiang Wu,Zhenfeng Huang
Natural Monascus yellow pigments (MYPs) have potential in the food industry due to their safety, but their application is limited by low biological activity and stability. Novel MYPs complexes, Monascus yellow pigments-tannic acid (MYPs-TA), were synthesized by spontaneously incorporating TA through intermolecular co-pigmentation in this work. Structural analysis revealed that multiple interactions contributed to the formation of complexes, including hydrogen bonding, π-π stacking, and hydrophobic interactions. The MYPs-TA exhibited characteristic ultraviolet signals of both MYPs (380 nm) and TA (276 nm), and the crystalline structure of MYPs transitioned to an amorphous form. These phenomena confirmed the tight combination of MYPs and TA. Color tonality, physicochemical stability as well as antimicrobial and antioxidant activities of MYPs were significantly improved after interaction with TA. Besides, MYPs-TA exhibited optimal stability and functionality in high-temperature processed foods such as baked goods or pasteurized products. This study provides a novel approach for synthesizing functional MYPs complexes with superior stability.
✓ 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）