JOURNAL OF SOILS AND SEDIMENTS
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2025
·
IF 3
Xie Xin,Liu Wei,Wang Mingxin,Pan Xinxing,Xue Jinjuan,Yao Meng
Purpose This study provides a novel resource utilization strategy for the carbonized soil derived from lubricant-contaminated soil. Materials and methods In this study, the lubricant-contaminated soil was treated by pyrolysis and ball milling with manganese carbonate to obtain Mn-loaded carbonized soil (Mn@BCS), which was then reused to activate peroxymonosulfate (PMS) oxidation for degradation of aniline (AN) in wastewater. Results and discussion When the dosage of Mn@BCS and PMS was both 1 g/L, 100 mg/L of AN was almost completely removed within 6 h. Three reactive oxygen species (ROS), including \({\text{SO}}_{4}^{\bullet -}\) , •OH and \({}^{1}{\text{O}}_{2}\) , were detected and verified. The probe-based kinetics models were established with atrazine, nitrobenzene and metronidazole as probes to quantify the generation of ROS. The exposure of the \({\text{SO}}_{4}^{\bullet -}\) , \(\bullet \text{OH}\) and \({}^{1}{\text{O}}_{2}\) at 6 h was 5.32 × 10 –11 , 5.40 × 10 –12 , 2.52 × 10 –10 M s, which contributed 33.62%, 2.02% and 2.98% to AN degradation, respectively. The main active sites include Mn–O, oxygen containing groups and graphitized carbon. The Mn–O and oxygen containing groups can activate PMS to produce \({\text{SO}}_{4}^{\bullet -}\) and \({}^{1}{\text{O}}_{2}\) , respectively. The graphitized carbon promotes AN degradation by generation of \({\text{SO}}_{4}^{\bullet -}\) and accelerating direct electron transfer. Conclusions Ball milling with manganese carbonate significantly improves the activation performance of carbonized soil for PMS oxidation, and thus promote the resource utilization of post-remediation soil.
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Nano-Micro Letters
·
2024
·Vol. 17
·期 1
·1-18
·
IF 31.6
Xiong Jinhua,Zhao Xu,Liu Zonglin,Chen He,Yan Qian,Lian Huanxin,Chen Yunxiang,Peng Qingyu,He Xiaodong
The large-scale, high-strength, super-tough, and multifunctional nacre-like heterocyclic aramid (HA)/MXene@polypyrrole (PPy) (HMP) nanocomposite papers were fabricated using the in-situ assembly of PPy onto the HA/MXene hydrogel template.
The "brick-and-mortar" layered structure and abundant hydrogen-bonding interactions among MXene, PPy, and HA respond cooperatively to external stress and effectively increase the mechanical properties of HMP nanocomposite papers.
The templating effect from HA/MXene was utilized to guide the assembly of conducting polymers, leading to high electrical conductivity and outstanding electromagnetic interference shielding performance.
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高影响因子
Science China-Materials
·
2024
·Vol. 67
·期 7
·2142-2152
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IF 6.8
Li Yaying,Yang Huijuan,Li Jili,Li Yefei,Ren Wei,Wen Jin,Xiao Qi,Xu Jingsan
Heterojunction photocatalysis has been widely studied as a means of efficiently converting solar energy to chemicals. However, the major challenge in developing high-performing heterojunction photocatalytic systems lies in achieving efficient transfer of electrons between the components. Herein, a novel S-scheme heterojunction photocatalyst was developed by combining BaTi 2 O5 nanorods with g-C 3 N 4 lamellae. The preferential deposition of Pt nanoparticles as cocatalyst via the one-step impregnation-reduction method on g-C 3 N 4 nanosheets with enhanced interfacial contact and strong electronic interaction has been proved essential for the photocatalytic performance. The developed Pti mp /20BaTi 2 O 5 /g-C 3 N 4 photocatalyst delivers the optimal hydrogen production rate of 2587 µmol g −1 h −1 with high stability after cycles. Photoelectrochemical analysis and theoretical calculation suggest that the formation of BaTi 2 O 5 /g-C 3 N 4 heterojunction results in the staggered band alignment and improved charge carrier dynamics. This work highlights the importance and feasibility of promoting photocatalysis by a new S-scheme heterojunction with viable cocatalysts.
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Nature Communications
·
2024
·Vol. 15
·期 1
·1-9
·
IF 14.7
Liu Cong,Mei Bingbao,Shi Zhaoping,Jiang Zheng,Ge Junjie,Xing Wei,Song Ping,Xu Weilin
Heterogeneous nano-electrocatalysts doped with nonmetal atoms have been studied extensively based on the so-called dopant-based active sites, while little attention has been paid to the stability of these dopants under working conditions. In this work, we reveal significantly, when the redox working potential is too low negatively or too high positively, the active sites based on these dopants actually tend to collapse. It means that some previously observed “remarkable catalytic performance” actually originated from some unknown active sites formed in situ. Take the Bi-F for the CO 2 RR as an example, results show that the observed remarkable activity and stability were not directly from F-based active sites, but the defective Bi sites formed in situ after the dopant leaching. Such a fact is unveiled from several heteroatom-doped nanocatalysts for four typical reactions (CO 2 RR, HER, ORR, and OER). This work provides insight into the role of dopants in electrocatalysis.
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BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
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2024
·Vol. 114
·期 1
·1-9
·
IF 2.7
Lei Pei,Zhang Jin,Kong Yaqi,He Huan,Zhong Huan
Accurate quantification of neurotoxic methylmercury (MeHg) in environmental samples is crucial for exploring its formation, behaviors, and risks. Here, we developed and optimized an alkaline digestion-manual purge trap/gas chromatography-cold atomic fluorescence spectrometry (GC-CVAFS) method for the quantification of MeHg in solid matrix samples such as sediments, soils or sedimentary rocks. The alkaline digestion method yielded higher recoveries of MeHg than the acid extraction method. The manual purge trap/GC analysis enhanced the detection of MeHg by increasing the loading volume of the digestion solution, thereby facilitating the detection of lower concentrations of MeHg in the samples when compared to fully automated analysis. The optimized method achieved a method the limit of detection (LOD) of 0.0263 ng·g -1 and a limit of quantification (LOQ) of 0.0876 ng·g -1 with relative standard deviations of less than 10%. These results suggest that the alkaline digestion method is appropriate for the pretreatment and quantification of MeHg analysis in sediments or soils, particularly those from non-Hg contaminated sites.
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Scientific Reports
·
2025
·Vol. 15
·期 1
·1-16
·
IF 3.9
Wang Qing,Chen Jie-Jie,Qiu Bin,Zhou Liang,Liu Rui-Ye,Huang Jia-Fen,He Yan,Xie Qin
Taking the extraction amount of rutin as the index, the extraction process of rutin from Ilex asprella (Hook. et Arn.) Champ. ex Benth. using the ultrasonic-assisted deep eutectic solvent method was optimized through response surface method. The effects of various factors, including the types of deep eutectic solvent, molar ratio of the solvent, water content, liquid-solid ratio, the temperature, power and time of ultrasound on the extraction amount of rutin were investigated. In accordance with the result of univariate experiments, the extraction process was optimized through employing the Box-Behnken response surface design method. A three-factor, three-level experimental model was established with the liquid-solid ratio, water content and ultrasonic time as variables. The findings indicated that the optimal technological conditions were as stated below: the molar ratio of lactic acid to choline chloride at 1:1, the ultrasonic extraction temperature at 40 °C, the ultrasonic extraction time at 31 min, the water content at 28%, and the liquid-solid ratio at 20:1 mL/g. Under optimal conditions, the validation experimental result revealed that the extraction amount of rutin was 86.553 ± 1.35 µg/g, with an absolute error of less than 0.6% in comparison with the predicted value of the model. The use of deep eutectic solvents for the extraction of rutin and the application of response surface method for optimizing the extraction process of rutin from Ilex asprella (Hook. et Arn.) Champ. ex Benth. were demonstrated. The present study provided a reference for the comprehensive utilization of Ilex asprella (Hook. et Arn.) Champ. ex Benth. .
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CHINESE JOURNAL OF POLYMER SCIENCE
·
2024
·
IF 4.1
Xiao Le-Ping,Qiu Lv-Ming,Wu Zhen,Wang Guo-Jie
To realize single-stimulus-induced simultaneous multi-behaviors in hydrogels is still quite challenging nowadays. Herein, an intelligent pH-responsive hydrogel (BP4VA/PAS) with rapid and high contrast changes in color, fluorescence, and shape simultaneously is reported. The BP4VA/PAS hydrogel is fabricated by incorporating styryl anthracene derivative (BP4VA) into copolymer networks (PAS) of acrylamide and sodium 4-styrene sulfonate. Under acid conditions, the protonation of BP4VA generates a rapid change with high color contrast from yellow to red and a fluorescence switch between bright green and weak red emission. At the same time, the electrostatic interactions between 2H-BP4VA 2+ and sulfonate anions suspended on PAS trigger BP4VA/PAS hydrogels to shrink. Upon alkaline treatment, the 2H-BP4VA 2+ /PAS hydrogel deprotonates and recovers to its original color, fluorescence, and shape. Furthermore, utilizing rapid and remarkable pH-responsive properties of BP4VA/PAS hydrogels, we successfully demonstrated its applications in biomimicry, camouflage, and multistage information encryption. Collectively, this work provided an elegant strategy to develop intelligent hydrogels in applications of biomimetic smart materials and information encryption.
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Scientific Reports
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2025
·Vol. 15
·期 1
·1-11
·
IF 3.9
Hu Lili,Wu Na,Wang Jue,Cai Donghui
The anti-inflammatory effect of phellodendrine (PHE), derived from Phellodendri Chinensis Cortex, has been verified in previous studies. Major depressive disorder (MDD) is associated with immune dysregulation and inflammatory processes. This study aimed to explore the therapeutic effects of PHE on MDD through network pharmacology and experimental validation. Multiple databases were used to predict the targets of PHE and MDD. The intersection targets between PHE and MDD were obtained to identify as targets for PHE against MDD, followed by protein–protein interaction network, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses. Molecular docking was applied to further confirm the anti-MDD effects of PHE. The mitochondrial DNA (mtDNA) copy number, inflammatory cytokines and pathway-related mRNA expressions in PC12 cell were determined via quantitative PCR (qPCR) and enzyme-linked immunosorbent assay to verify our finding. Thirty-eight intersection targets were obtained between PHE and MDD. PHE exerted an anti-MDD effect by regulating SLC6A4, SLC6A3, SLC6A2, MAOA and other targets through serotonergic synapse, salivary secretion, dopaminergic synapse, and cAMP signalling pathway. In vitro, PHE induced an increment in mtDNA copy number compared with the CORT group. PHE affected the levels of IL6 and IL1β with different concentrations. The mRNA levels of CHRM1, HTR1A and key targets of the PI3K/Akt signalling pathway were also influenced. Our research reveals novel mechanisms underlying the anti-MDD effects of PHE through network pharmacology and experiments, which provides a new direction for the development of antidepressants.
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Cell Communication and Signaling
·
2024
·Vol. 22
·期 1
·1-17
·
IF 8.2
Zhang Yu,Wu Rong,Zhan Xi,Wang Xuan-Yi,Xiang Lin-Wei,Duan Ya-Qian,You Yan,Zhang Jian-Bo,Wu Rui,Zhang Yun-Yuan,Duan Liang
Background Absent in melanoma 2 (AIM2) inflammasome-dependent pyroptosis and neutrophil extracellular traps (NETs) have been implicated in chronic liver disease (CLD). However, the specific intrahepatic cell type that undergoes AIM2 inflammasome-dependent pyroptosis and how their interaction augments hepatic inflammation/fibrosis remains unclear.Methods The expression and correlation of AIM2 inflammasome-dependent pyroptosis-related indicators and NETs were analyzed in biopsy tissue and blood specimens from chronic hepatitis patients (CHs). Cell-based experiments were conducted to investigate their interaction. In vitro and in vivo experiments were used to analyze their effects on the progression of hepatic inflammation/fibrosis as well as their clinical importance.Results Elevated levels of AIM2 inflammasome-dependent pyroptosis indicators and NETs were detected in biopsy tissue and blood specimens. Circulating NETs were positively correlated with pyroptosis-related indicators, and both were related with disease severity. Confocal imaging revealed that AIM2 was mainly localized to hepatic macrophages, indicating that hepatic macrophages were the major cell type that underwent pyroptosis. NETs were directly engulfed by macrophages and then stimulated AIM2 inflammasome-dependent macrophage pyroptosis in vitro, which amplified the activation of hepatic stellate cells (HSCs) and increased collagen deposition. Administration of the NETs degradation agent DNase I or the AIM2 inflammasome activation inhibitor ODN A151 effectively alleviated chronic liver inflammation/fibrosis progression in vivo.Conclusion sNETs-induced AIM2 inflammasome-dependent pyroptosis in macrophages facilitates liver inflammation/fibrosis progression. The identified NET–AIM2 inflammasome cascade could serve as a novel therapeutic target for hepatic inflammation/fibrosis progression.
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RARE METALS
·
2025
·Vol. 44
·期 2
·889-900
·
IF 11
Feng Ping-Xian,Chen Qi-Liang,Yang Dong-Jie,Wang Huan
Developing high-capacity carbon-based anode materials is crucial for enhancing the performance of lithium-ion batteries (LIBs). In this study, we presented a nitrogen-doped lignin mesoporous carbon/nickel/nickel oxide (NHMC/Ni/NiO) nanocomposite for developing high-capacity LIBs anode materials through carbonization and selective etching strategies. The synthesized NMHC/Ni/NiO-0.33 composite exhibited a highly regular microstructure with well-dispersed Ni/NiO particles. The composite had a surface area of 408 m 2 ⋅g −1 , a mesopore ratio of 75.0%, and a pyridine–nitrogen ratio of 58.9%. The introduction of nitrogen atoms reduced the disordered structure of lignin mesoporous carbon and enhanced its electrical conductivity, thus improving the lithium storage capabilities of the composite. Following 100 cycles at a current density of 0.2 A⋅g −1 , the composite demonstrated enhanced Coulomb efficiency and rate performance, achieving a specific discharge capacity of 1230.9 mAh⋅g −1 . At a high-current density of 1 A⋅g −1 , the composite exhibited an excellent specific discharge capacity of 714.6 mAh⋅g −1 . This study presents an innovative method for synthesizing high-performance anode materials of LIBs. Graphical abstract
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Waste and Biomass Valorization
·
2025
·
IF 2.8
Zeng Fanen,Lv Qi,Zhang Yaning,Lu Lu,Xu Bing
The practical application of hierarchical porous carbon materials in supercapacitors (SCs) promoted the development of a simple and sustainable preparation method. Plane tree seed-based porous carbon (PBC) was synthesized using static air activation with plane tree seeds as precursors and their hierarchical porous structure was regulated by controlling the reaction temperature. The physicochemical properties of the produced PBCs were characterized through scanning electron microscopy, X-ray diffraction, Raman spectroscopy, N 2 adsorption–desorption, X-ray photoelectron spectroscopy, and energy dispersive X-ray spectroscopy. The optimized hierarchical porous carbon materials obtained at an activation temperature of 700 °C possessed a high specific surface area, an optimal hierarchical porous structure dominated by mesoporous structures, and functional groups containing N and O for doping. The formation and evolution of hierarchically porous structures during static air activation were described in detail. In a three–electrode system, the optimal PBC exhibited the highest specific capacitance of 187.05 F g −1 at 0.5 A g −1 . Moreover, the constructed symmetric SC achieved a high energy density of 11.03 Wh kg −1 at a power density of 250 W kg −1 and exhibited remarkable electrochemical stability (100% over 7000 cycles at 10 A g –1 ). It can be predicted that static air activation might be a simple and sustainable method widely used for preparing carbon materials with high energy storage and conversion efficiency. Graphical
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JOURNAL OF POLYMER RESEARCH
·
2025
·Vol. 32
·期 1
·1-11
·
IF 2.8
Zhou Haitao,Liu Yan,Lu Tianhao,Xia Wulin,Qin Ying,Kuang Guankun,Xin Binjie
In this paper, a string of waterborne polyurethane (WPU) emulsions synergistically modified with PDMS and GMS were successfully prepared by incorporating Polydimethylsiloxane (PDMS) into the soft segments of waterborne polyurethanes, and using glycerol monostearate (GMS) as a chain extender. FTIR, TGA, SEM, particle size test, water contact angle and other tests were used to characterize the effects of variable GMS contents on the structure and function of WPUs. The experimental tests showed that the WPUs synthesised with 30% PDMS-8% GMS synergism had better overall performance. The water contact angle could reach 115.4°, and the water absorption was reduced to 10.52% at 72 h. Furthermore, this innovative WPU film had excellent thermal stabilization, and this study provided a new approach to improve waterproofing performance, hydrophobicity and thermal stability of waterborne polyurethanes, which is expected to be applied in coatings, adhesives and water-resistant agents.
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危险品化学品经营许可证（带存储）