Scientific Reports
·
2024
·Vol. 14
·期 1
·1-14
·
IF 3.8
Wang Xiaojian,Peng Xiaomin,Zhao Quanzhong,Mi Jinxing,Jiang Huating,Li Shengli,Hu Hui,Huang Hao
Toluene treatment has received extensive attention, and ozone synergistic catalytic oxidation was thought to be a potential method to degrade VOCs (violate organic compounds) due to its low reaction temperature and high catalytic efficiency. A series of bimetal/Cord monolithic catalysts were prepared by impregnation with cordierite, including Mn x Cu 5−x /Cord, Mn x Co 5−x /Cord and Cu x Co 5−x /Cord (x = 1, 2, 3, 4). Analysis of textural properties, structures and morphology characteristics on the prepared catalysts were conducted to evaluate their performance on toluene conversion. Effects of active component ratio, ozone addition and space velocity on the catalytic oxidation of toluene were investigated. Results showed that Mn x Co 5−x /Cord was the best among the three bimetal catalysts, and toluene conversion and mineralization rates reached 100 and 96% under the condition of Mn 2 Co 3 /Cord with 3.0 g/m 3 O 3 at the space velocity of 12,000 h −1 . Ozone addition in the catalytic oxidation of toluene by Mn x Co 5−x /Cord could efficiently avoid the 40% reduction of the specific surface area of catalysts, because it could lower the optimal temperature from 300 to 100 °C. (Co/Mn)(Co/Mn) 2 O 4 diffraction peaks in XRD spectra indicated all the four Mn x Co 1−x /Cord catalysts had a spinel structure, and diffraction peak intensity of spinel reached the largest at the ratio of Mn:Co = 2:3. Toluene conversion rate increased with rising ozone concentration because intermediate products generated by toluene degradation might react with excess ozone to generate free radicals like ·OH, which would improve the toluene mineralization rate of Mn 2 Co 3 /Cord catalyst. This study would provide a theoretical support for its industrial application.
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RARE METALS
·
2024
·
IF 9.6
Cai Yi-Meng,Li Yang-Hua,Xiao Yi,Meyer Quentin,Sun Qian,Lai Wan-Jing,Zhao Shu-Wen,Li Jun,Zhang Lin-Jie,Wang Han,Lin Zhang,Luo Jun,Han Li-Li
Electrochemical nitrate reduction to NH 3 holds a great promise for N-upcycling in nature, while its sluggish reaction kinetics involved in both the stepwise deoxygenation and hydrogenation processes necessitates the development of bespoke catalysts with multi-site engineering. Herein, we report a hybrid catalyst composed of rare-earth (RE) yttrium (Y) single atoms and copper phosphide (Cu 3 P) nanoparticles loaded on N, P-doped carbon (Y SA -Cu 3 P/CNP) through a chelating and pyrolysis method. Owing to a synergistic contribution of Y single atoms and Cu 3 P nanoparticles, Y SA -Cu 3 P/CNP achieves an impressive NH 3 Faradaic efficiency (FE) of 92% at − 0.5 V(vs. RHE) and the highest NH 3 yield rate of 11.4 mg·h −1 ·cm −2 at − 0.6 V (vs. RHE) in an alkaline media, which surpass most of the reported electrocatalysts. The intricate reaction pathway has been explored by online differential electrochemical mass spectrometry (DEMS), and the synergistic effect between Y single atoms and Cu 3 P nanoparticles has been studied by in situ synchrotron X-ray absorption spectroscopy. Moreover, density-functional theory (DFT) calculations unveil that the high-efficiency nitrate reduction on Y SA -Cu 3 P/CNP is attributed to a reduced energy barrier of the rate-determining deoxygenation step coupled with the enhanced stabilization of active hydrogen favorable for the hydrogenation steps, thereby boosting the overall reaction rates. In addition, a prototype Zn-nitrate battery utilizing Y SA -Cu 3 P/CNP as the cathode is unveiled. This work not only elucidates the mechanism behind the enhanced catalytic performance but also paves the way for the future development of high-efficiency electrocatalysts through dual-site engineering. Graphical Abstract
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Scientific Reports
·
2024
·Vol. 14
·期 1
·1-11
·
IF 3.8
Liu Hao,Xiong Zhengye,Chen Qingxiang,Wang Luyan,Wang Chunxi
To evaluate the effect of irradiation on the preservation of potatoes, fresh potatoes were selected as the irradiation objects, and irradiated with 60 Co- γ radiation source for 0, 100, 200, 500 and 1000 Gy, respectively. During the irradiation, the well-packaged Y 1.79 Bi 0.01 Eu 0.2 MgTiO 6 novel thermoluminescence dosimeter material was placed together with the potatoes at the same position. Then, the potatoes were stored in the same temperature and humidity environment, and the quality changes of the potatoes were observed. The Y 1.79 Bi 0.01 Eu 0.2 MgTiO 6 material had good performance indicators, and was used to measure the irradiation dose of the potatoes. The experiment showed that irradiation could appropriately extend the storage time of potatoes, and gamma irradiation of about 1000 Gy could achieve the best preservation effect. The main pathogenic fungi that cause dry rot of potatoes were Fusarium solani and Fusarium oxysporum , and the appropriate dose of 60 Co- γ irradiation could effectively inhibit the spread and growth of these fungi.
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FIBERS AND POLYMERS
·
2025
·
IF 2.3
Guo Xiaoyu,Feng Changjian,Huang Lilan,Wang Hongqiang,Liu Fang,Li Jiao
Polylactic acid (PLA) membranes offer advantages such as biodegradability, non-toxicity, and biocompatibility for oil–water separation. However, it remains challenging to fabricate PLA membranes with sufficient mechanical strength and hydrophobicity for practical applications. In this study, a superhydrophobic fibrous membrane based on PLA and Polybutylene terephthalate adipate (PBAT) is prepared via electrospinning, followed by a high-humidity treatment. The effects of PBAT content and high humidity treatment on the morphology, hydrophobicity, and mechanical properties of PBAT/PLA composite fiber membranes are investigated. The results show that the introduction of PBAT effectively enhances the fiber diameter, crystallization, hydrophobicity, and mechanical properties of PBAT/PLA fibers. Moreover, the high humidity treatment further improves the mechanical and hydrophobic properties of the membranes. When 0.2 g of PBAT is added and the high humidity treatment lasts for 24 h, the resulting PBAT/PLA fibrous membrane exhibits an outstanding water contact angle (WCA) of 158.23°, tensile strength of 3.802 MPa, excellent oil–water separation flux (6500 L/(m 2 ·h)), and efficiency of 99.80%, demonstrating great potential for oil–water separation applications.
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Nature Communications
·
2024
·Vol. 15
·期 1
·1-9
·
IF 14.7
Yang Xin,Huang Xin,Qiu Xiaoyan,Guo Quanquan,Zhang Xinxing
Porous materials with ultrahigh specific strength are highly desirable for aerospace, automotive and construction applications. However, because of the harsh processing of metal foams and intrinsic low strength of polymer foams, both are difficult to meet the demand for scalable development of structural foams. Herein, we present a supramolecular metallic foam (SMF) enabled by core-shell nanostructured liquid metals connected with high-density metal-ligand coordination and hydrogen bonding interactions, which maintain fluid to avoid stress concentration during foam processing at subzero temperatures. The resulted SMFs exhibit ultrahigh specific strength of 489.68 kN m kg −1 (about 5 times and 56 times higher than aluminum foams and polyurethane foams) and specific modulus of 281.23 kN m kg −1 to withstand the repeated loading of a car, overturning the previous understanding of the difficulty to achieve ultrahigh mechanical properties in traditional polymeric or organic foams. More importantly, end-of-life SMFs can be reprocessed into value-added products (e.g., fibers and films) by facile water reprocessing due to the high-density interfacial supramolecular bonding. We envisage this work will not only pave the way for porous structural materials design but also show the sustainable solution to plastic environmental risks.
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IONICS
·
2024
·Vol. 30
·期 5
·3033-3044
·
IF 2.4
Lan Yongzhi,Yu Rui,Wang Qing,Dai Jianfeng
A trimetallic layered double hydroxide (LDH), NiCoMg-LDH, was rationally designed and synthesized in this paper by hydrolytic etching of Ni 2+ and Mg 2+ using Co-MOF as a conversion template, during which the rhombic dodecahedral structure of Co-MOF was etched to form a hollow cage structure overlaid with nanosheets on the surface. In comparison to the NiCo-LDH prepared by monometallic ion etching, the NiCoMg-LDH prepared in this study has a larger specific surface area and a more stable hollow porous structure, which can provide a large number of active sites for redox reactions as well as ion transport channels. The trimetallic Ni 1 Co 1 Mg-LDH has a higher specific capacity of 2141.62 F g −1 (208.21 mAh g −1 ) at 1 A g −1 current density compared to the NiCo-LDH. It also keeps 83.61% of its specific capacity after 5000 cycles at 10 A g −1 . It also performs well in rate capacity, with a capacity retention rate of 74.49% at 20 A g −1 . With Ni 1 Co 1 Mg-LDH serving as the positive electrode and AC serving as the negative electrode, the hybrid supercapacitor (HSC) exhibits a high energy density of 61.65 Wh kg −1 at a power density of 800.02 W kg −1 . After 10,000 cycles of charge and discharge, 80.17% of the capacity was retained. This study demonstrates that the trimetallic LDH structure generated using bimetallic ion etching with MOF as a template can increase the performance and stability of supercapacitors.
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BMC PLANT BIOLOGY
·
2025
·Vol. 25
·期 1
·1-20
·
IF 4.8
Sun Meiyu,Han Baocai,Xiao Jianhua,Yu Haiyan,Jia Yinli,Yuan Shuhai,Yao Juan,Xing Quan,Wu Dongqi,Sun Guofeng,Zhang Jinzheng
Background Hemerocallis middendorffii is a kind of high quality ornamental plant with strong cold resistance, pleasant aroma, and gorgeous floral color. Hemerocallis is one of the three internationally recognized perennial flowers that has huge demand in the flower market. However, little is known about the floral scent and color biosynthesis in daylily due to the large genome size. Results We reported here a high-quality chromosome-scale genome of H. middendorffii which was a native daylily in China. Using PacBio HiFi and Hi-C sequencing technologies, we assembled a chromosome-level genome of 4.10 Gb with a contig N50 of 12.81 Mb. We identified 65,536 protein-coding genes across the 11 chromosomes. We employed a combination of genomic, transcriptomic, and metabolomic approaches to investigate mechanisms behind the floral scent and color biosynthesis in daylily. The main terpenoids contributing to floral fragrance were linalool, 3-carene, nerolidol, and α-farnesene, while carotenoids and anthocyanidins were the main components of floral color. These traits could be stably inherited by their hybrid progenies, and some of them exhibited heterosis. Through Weighted Gene Co-expression Network Analysis (WGCNA) analysis, we identified two modules MEblueviolet and MEgreenyellow related to terpenoids (floral scents) and carotenoids (floral colors) biosynthesis. The 10 hub genes including DXS , MVD , MVK , DXR , LCYBs , Z-ISO , CYPs , and JAS were screened by network construction. The results of qRT-PCR analysis showed that these hub genes were significant differentially expressed in daylily samples, and these results were basically consistent with the relative transcript levels of RNA-seq. Conclusions This study not only provides new insights into the molecular mechanisms of floral scent and color, but also lays a foundation for subsequent research on key gene functions and molecular breeding in Hemerocallis .
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2025
·
IF 3.8
Li Xiao,Chen Jia,Li Xuanwei,Xia Yaokun,Zhao Qingwei
A dispersive liquid–liquid microextraction method based on high-density alkanol–hexafluoroisopropanol supramolecular solvent (alkanol–HFIP SUPRAS) coupled with liquid chromatography-tandem mass spectrometry is presented for microextraction and detection of four antipsychotics (aripiprazole, lurasidone, risperidone, and paliperidone) in urinary specimens. With octanol as the extractant and HFIP as the dispersant, SUPRAS-forming agent, and density regulator, reverse micelle aggregate-based SUPRAS spontaneously formed in urine, which acted as SUPRAS inducer and analytical sample. SUPRAS formation was not limited by sample pH or salt addition. The SUPRAS, located at the bottom layer of the sample solution due to its high density, was easily collected in trace volumes (~14 μL). Extraction conditions were studied and screened by the one-variable-at-a-time method, the Box–Behnken design, and response surface modeling. Optimal conditions provided low solvent consumption (70 μL of octanol and HFIP), short extraction time (40 s of vortex time), high extraction rate (61–78%), and good enrichment factor (44–55). There is a good linear relationship with correlation coefficients higher than 0.9959. Method limits of detection (S/N = 3) and quantification (S/N = 10) were in the ranges of 0.13–0.38 ng mL −1 and 0.42–1.28 ng mL −1 , respectively. Recoveries ranged from 94.0 to 120.3% with intra- and inter-day relative standard deviations less than 9.9%. The method also has satisfactory levels of eco-friendliness and sustainability (0.56 of AGREEprep score) with low matrix effects (87.4–113.0%). The method is a fast, simple, efficient, and environmentally benign procedure for microextraction and detection of antipsychotics in human urine.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-15
·
IF 15.7
Bai Yang,Meng Yuanyuan,Yang Ming,Tian Ruijia,Wang Jingnan,Jiao Boxin,Pan Haibin,Gao Jiangwei,Wang Yaohua,Sun Kexuan,Zhou Shujing,Lu Xiaoyi,Song Zhenhua,Liu Chang,Ge Ziyi
All-perovskite tandem solar cells (PTSCs) offer a promising approach to surpass the Shockley-Queisser (SQ) limit, driven by efficiently reducing thermalization and transmission losses. However, the efficiency and stability of the narrow-bandgap (NBG) subcells, which are essential for PTSC performance, remain severely constrained by challenges such as lattice instability, strain accumulation and halide migration under illumination. This study introduces a rigid sulfonate-based molecule, sodium naphthalene-1,3,6-trisulfonate (NTS), into tin-lead (Sn-Pb) perovskites, where it strengthens the Sn-I bond through Sn-trisulfonate coordination and reduces light-induced dynamic lattice distortions via the rigid NTS backbone. These molecular interactions alleviate strain heterogeneity within the lattice and homogenize the Sn-Pb compositional gradient, thereby enhancing the structural integrity and long-term stability of Sn-Pb perovskites under operational conditions. As a result, Sn-Pb single-junction perovskite solar cells (PSCs) achieve a power conversion efficiency (PCE) of 23.2%. When integrated into a tandem configuration, the device attains an impressive PCE of 29.6% (certified PCE of 29.2%, one of the highest certified efficiencies to date), with 93.1% of the initial efficiency retained after 700 h of continuous operation. By stabilizing the lattice structure, this work lays a solid foundation for achieving both high efficiency and long-term durability in next-generation perovskite photovoltaics.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-15
·
IF 15.7
Jiang Yujia,Tang Ning,Wang Xiaoting,Pei Dongxu,Zhang Hao,Li Min-Hui,Hu Jun
Eutectogels have emerged as promising candidates for technological applications due to their environmental stability, repeatable deformability, and high ionic conductivity. Nevertheless, the existing eutectogels often show fragile network structures, in which the simultaneous achievement of high modulus, strength, and toughness remains a real challenge. Herein, a variable-temperature solvent exchange (VTSE) strategy is proposed to fabricate mechanically robust eutectogels. The VTSE approach implements a two-stage solvent exchange process to synergistically optimize the crystal nucleation and growth of poly(vinyl alcohol), resulting in a robust network crosslinked by well-developed crystalline domains. The obtained eutectogels exhibit an advantageous combination of high Young’s modulus (103.1 MPa), strength (40.5 MPa), toughness (86.8 MJ m −3 ), and fracture energy (98.7 kJ m −2 ), surpassing the performance of conventional hydrogels, organogels, and ionogels. Moreover, the versatility of VTSE approach allows its application to other solvent systems, providing a powerful platform for the design of advanced functional gels.
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Scientific Reports
·
2025
·Vol. 15
·期 1
·1-11
·
IF 3.9
Zhu Huanle,Qi Yuchen,Hua Shiyuan,Huang Rongrong,Chen Lumin,Zhou Xiaoxuan,He Jian,Hu Hongjie,Niu Zhongfeng
Inorganic nanoparticles play important roles in cancer treatment, but the issues of biodegradable properties, and tumor penetration restricted further clinical application. Aiming at the low efficiency and toxic side effects problems existing in the current clinical treatment of cancer, a biodegradable mesoporous silica nanoparticle (MSN) platform integrating pH-responsive drug release and synergistic chemo-radiotherapy was developed. The doxorubicin hydrochloride (DOX) was loaded in MSNs via electrostatic interactions, with ultra-small hafnium sulfide (HfS 2 ) nanodots were anchored to the surface of MSN. At physiological pH, HfS₂ reinforces DOX retention through steric and electrostatic effects, while in acidic tumor microenvironments, it triggers DOX release. Concurrently, dissociated HfS 2 acts as a radiosensitizer, enhancing X-ray-induced cytotoxicity and promoting deep tumor penetration. Both the in vitro cellular and in vivo animal level results confirmed synergistically enhanced chemoradiotherapy efficiency. Therefore, this research, we believed, will bring a new train of thought and scientific support for more safety and more efficiency in cancer therapy.
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MATERIALS AND STRUCTURES
·
2025
·Vol. 58
·期 7
·1-25
·
IF 3.9
Xue Lutao,Li Yubiao,Li Rui,Yu Wenqiang
The mismatch in physical properties between traditional mortar and the porous substrate of foam concrete (FC) leads to poor adhesion and cracking, limiting the wider application of FC. In order to address this issue and alleviate the storage pressure of low silica iron tailings (LSIT), this study developed an advanced plastering mortar system for foam concrete blocks through systematic optimization of LSIT. A comprehensive evaluation was conducted on six critical parameters, including the water-cement ratio, the aggregate ratio of LSIT to sand, the content of cement, hydroxypropyl methyl cellulose (HPMC), re-dispersible latex powder (RDP), and polypropylene fiber (PPF), establishing their quantitative impacts on mortar performance. The optimal performance was achieved with a water-cement ratio of 0.84, aggregate ratio of 11:3, cement content of 30%, HPMC content of 0.4%, RDP content of 1.5%, and PPF content of 0.15%, yielding a mortar density of 1447.9 kg/m 3 , 28 d compressive strength of 8.21 MPa, and 104 mm consistency, parameters fully compliant with the M8 grade specifications in JC/T 890-2017. Advanced microstructural characterization (XRD, SEM, and hydration heat analysis) demonstrated that LSIT particles refined the granulometric distribution through microaggregate effects. In addition, C 3 S dissociation was retarded by HPMC through Ca 2+ chelation, extending the induction period of hydration. Moreover, the RDP facilitated interfacial cross-linking via transesterification, forming the core–shell structures of C–S–H and polymer, compared with the control sample, the portlandite content was slightly reduced. Furthermore, the PPF reinforcement is achieved through crack-deflection and bridging mechanisms. The modification system of multi-component materials therefore exhibits a three-fold synergistic action, including the gradation optimization of particles, the regulation of hydration kinetics, and the toughening of the interfacial. These findings establish a viable pathway for high-value utilization of iron tailings in construction materials and simultaneously elucidate the physicochemical mechanisms underlying the interactions of composite modifiers in cementitious systems. Furthermore, the modified additive system serves as a viable template for valorizing diverse solid wastes. Graphical abstract
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危险品化学品经营许可证（带存储）