Advanced Composites and Hybrid Materials
·
2023
·Vol. 6
·期 3
·1-12
·
IF 20.1
Miao Baoji,Arsalan Muhammad,BaQais Amal,Murugadoss Vignesh,Saddique Imran,Amin Mohammed A.,Ren Junna,Awais Azka,Zhu Qingsong,Xu Ben Bin,Wei Fengchun
The tetrametallic PtNiCuCo alloy nanoparticles were prepared by a simple and cost-effective solution-based approach and spray deposited on fluorine-doped tin oxide (FTO) substrates to use as a highly sensitive catalyst for hydrogen peroxide (H 2 O 2 ) sensing. The morphological studies revealed that the PtNiCuCo nanoparticles had an average particle size of 5 ± 1 nm. Electrochemical studies showed that PtNiCuCo nanoparticles possess excellent electro-oxidation activity for hydrogen peroxide at 20 mVs −1 scanning rate (vs Ag/AgCl). The wide linear range for hydrogen peroxide (H 2 O 2 ) was obtained from 10μM to 16 mM. The detection limits for H 2 O 2 were 0.16 μM (SNR = 3). The sensitivity of H 2 O 2 was 4367.25 µAmM −1 cm −2 . These results revealed that the prepared nanoparticles could be a potential candidate for H 2 O 2 sensing.
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JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2023
·Vol. 148
·期 13
·6013-6026
·
IF 4.4
Hu Yinghui,Wang Xuwen,Hao Jingwei,Jiang Shouhang,Zhang Jian,Yang Yulin,Lin Kaifeng,Zheng Jian,Shuai Yong
The excellent thermal decomposition efficiency of ammonium perchlorate (AP) is of great importance for obtaining propellant with fast specific impulse. In this study, four CuM x O y catalysts, including M = Fe, Ni, Co, and Zn, were synthesized and then used for catalyzing AP decomposition and hydroxyl-terminated polybutadiene (HTPB)-based solid propellant combustion. The existed synergistic effect in CuM x O y catalysts improved the catalytic activity and the most active CuZnO catalyst decreased the AP high-temperature decomposition temperature (HTD) from 412.5 to 289.4 °C. Kinetic studies indicated that CuM x O y catalysts inhibited the conversion of N 2 O to a fully oxidized product and decreased the activation energy ( E a ) in HTD to concentrate AP decomposition to significantly decrease the heat loss, thereby increasing their decomposition efficiency. When applying the CuM x O y catalysts in the HTPB (hydroxyl-terminated polybutadiene)-based solid propellant, a faster burning rate and stronger optical emission spectrum were obtained. The CuM x O y catalyst is a potential additive for the preparation of outstanding combustion solid propellants. Graphical abstract
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 27
·70109-70120
·
IF 5.8
Deng Dengxian,Wang Junxia,Xu Sijie,Sun Yueying,Shi Guangyu,Wang Huili,Wang Xuedong
This study investigated the physiological and biochemical impacts of organophosphate flame retardants (OPFRs) on wheat ( Triticum aestivum L.) germination and growth performance in the presence and absence of copper. The study evaluated seed germination, growth, OPFRs concentrations, chlorophyll fluorescence index (F v /F m and F v /F 0 ), and antioxidant enzyme activity. It also calculated the root accumulation of OPFRs and their root-stem translocation. At the germination stage, at a concentration of 20 μg·L −1 OPFR exposure, wheat germination vigor, root, and shoot lengths were significantly decreased compared to the control. However, the addition of a high concentration of copper (60 mg·L −1 ) decreased by 80%, 82%, and 87% in the seed germination vitality index and root and shoot elongation, respectively, compared to 20 μg·L −1 of OPFR treatment. At the seedling stage, a concentration of 50 μg·L −1 of OPFRs significantly decreased by 42% and 5.4% in wheat growth weight and the photochemical efficiency of photosystem II (Fv/Fm) compared to the control. However, the addition of a low concentration of copper (15 mg·L −1 ) slightly enhanced the growth weight compared to the other two co-exposure treatments, but the results were not significant ( p > 0.05). After 7 days of exposure, the activity of superoxide dismutase (SOD) and malondialdehyde (MDA) (indicates lipid peroxidation) content in wheat roots significantly increased compared to the control and was higher than in leaves. MDA contents in wheat roots and shoots were decreased by 18% and 6.5% when OPFRs were combined with low Cu treatment compared with single OPFRs treatment, but SOD activity was slightly improved. These results suggest that the co-exposure of copper and OPFRs enhances reactive oxygen species (ROS) production and oxidative stress tolerance. Seven OPFRs were detected in wheat roots and stems, with root concentration factors (RCFs) and translocation factors (TFs) ranging from 67 to 337 and 0.05 to 0.33, respectively, for the seven OPFRs in a single OPFR treatment. The addition of copper significantly increased OPFR accumulation in the root and aerial parts. In general, the addition of a low concentration of copper promoted wheat seedling elongation and biomass and did not significantly inhibit the germination process. OPFRs could mitigate the toxicity of low-concentration copper on wheat but had a weak detoxification effect on high-concentration copper. These results indicated that the combined toxicity of OPFRs and Cu had antagonistic effects on the early development and growth of wheat.
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Advanced Composites and Hybrid Materials
·
2023
·Vol. 6
·期 3
·1-12
·
IF 20.1
Cui Zhixiang,Zhou Jixiang,Wang Xiaolong,Wang Qianting,Si Junhui,Liu Xiaolong
Recently, aqueous nickel-zinc (Ni-Zn) batteries have abundant application potential due to its large-scale energy storage systems. However, traditional cathode materials still have the disadvantage of having much lower specific capacity than their theoretical capacity and poor cycle performance. The development of bond-free flexible cathode electrodes for high-performance aqueous Zn batteries remains a tremendous challenge. Herein, a simple method was reported to in situ grow NiCo 2 S 4 acicular nanowire arrays encapsulated by nitrogen-doped carbon on carbon cloth (denoted as CC@NC-NiCo 2 S 4 ) as binder-free and flexible electrode for high-performance aqueous Zn batteries. When CC@NC-NiCo 2 S 4 was used as a stand-alone cathode material, the prepared aqueous CC@NC-NiCo 2 S 4 //Zn battery exhibits excellent rate capability (0.58 mAh cm −2 at 2 mA cm −2 and 0.46 mAh cm −2 at 20 mA cm −2 ) and superior cycling performance (80% capacity retention at 4.65 A g −1 after 1000 cycles, based on the NiCo 2 S 4 active material). More importantly, a quasi-solid-state CC@NC-NiCo 2 S 4 /Zn cell has also been fabricated and exhibits an outstanding energy density of 238 Wh kg −1 at a power density of 1.27 kW kg −1 and 89% capacitance retention for 500 cycles with 5 mA cm −2 . Those results showed that it is much higher than that of other reported (Ni-Zn) batteries, indicating its excellent potential practical applications for high-performance aqueous Zn batteries. Graphical Abstract Novel electrode functionalized with NiCo 2 S 4 nanowire arrays encapsulated by carbon was synthesized and exhibits excellent performance for aqueous Zn batteries.
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Journal of Bionic Engineering
·
2023
·Vol. 20
·期 5
·1891-1904
·
IF 4
Wang Peng,Zhao Hui,Zheng Boyuan,Guan Ximei,Sun Bin,Liao Yongli,Yue Ying,Duan Wei,Ding Haimin
It has been proved that the construction of interconnected armour on superhydrophobic surface could significantly enhance the mechanical robustness. Here, a new kind of armour with frame/protrusion hybrid structure was achieved by nanosecond laser technology. Then, this armoured superhydrophobic surface demonstrated excellent durability, which could withstand linear abrasion (~ 3 N press) 800 cycles, water jet test (1.0 MPa pressure) 40 times and 100 °C treatment 18 days. Particularly, the armoured superhydrophobic sample shows outstanding anti-icing ability, which can speed up the supercooled water dropping (no adhesion within 2 h), increase the freezing delay time by ~ 3 times and maintain low adhesion force (less than 35 kPa) after 30 icing/de-icing cycles. Further finite element analysis and theoretical modeling proved that the developed frame/protuberance hybrid structure could effectively enhance the durability. The relatively low surface accuracy in this study can significantly reduce processing cost, which provides a bright future for the practical application of armour superhydrophobic materials.
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 32
·78521-78536
·
IF 5.8
Hu Qing-Di,Jiang Hong-Liu,Lam Kwok-Ho,Hu Zhi-Peng,Liu Zhi-Jie,Wang Hua-Ying,Yang Yong-Yu,Baigenzhenov Omirserik,Hosseini-Bandegharaei Ahmad,He Fu-An
The effect of polydopamine (PDA) modification on aminated Fe 3 O 4 nanoparticles (Fe 3 O 4 -NH 2 )/graphite oxide (GO)/β-cyclodextrin polymer cross-linked by citric acid (CDP-CA) composites were studied for the removal of a cationic dye (methylene blue, MB) and an anionic dye (Congo red, CR) from waters. The micro-structural and magnetic characterizations confirmed the successful preparation of Fe 3 O 4 -NH 2 /GO/CDP-CA and PDA/Fe 3 O 4 -NH 2 /GO/CDP-CA composites. The maximum MB and CR adsorption capacities of Fe 3 O 4 -NH 2 /GO/CDP-CA were 75 mg/g and 104 mg/g, respectively, while the corresponding amounts for PDA/Fe 3 O4-NH 2 /GO/CDP-CA composite were 195 mg/g and 64 mg/g, respectively. The dye sorption behaviors of these two composites were explained by their corresponding surface-charged properties according to the measured zeta potential results. Moreover, the high saturation magnetizations and the stable dye removal rate in the adsorption–desorption cycles indicated the good recyclability and reusability of the fabricated composites. Graphical abstract
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RARE METALS
·
2023
·Vol. 42
·期 8
·2643-2657
·
IF 8.8
Yuan Kai,Gao Teng-Jia,Yang Yang,Luo Wang,Li Shun,Zhang Chao-Yang,Xu Jian-Xiong,Li Na,Zhu Yi-Rong
Binary transition metal sulfides are hotly investigated in advanced energy storage devices because of their ultra-high reversible capacity. Nevertheless, the unsatisfied rate capability and cycling stability still hinder their practical application. Herein, hierarchical nanoporous carbon@NiCo 2 S 4 (HNCMs@NCS) composites with core–shell flower-like structures were prepared by in situ growing of NiCo 2 S 4 nanosheets on HNCMs through a hydrothermal-assisted template sacrificial method. Benefiting from a synergistic effect between the NiCo 2 S 4 shell with high specific capacity and the HNCMs with unique porous structure, the synthesized flower-like HNCMs@NCS composites exhibit extraordinary electrochemical performances, including a high capacity of 346.9 mAh·g −1 at 1 A·g −1 , superb rate property with 86.4% initial capacity at 30 A·g −1 and predominant cycle stability with 81.2% capacity retention after 5000 cycles. Furthermore, the resulting HNCMs@NCS cathode was coupled with the chemical-activated HNCMs (AHNCMs) anode to construct a hybrid supercapacitor device. The as-fabricated device exhibits superior energy density (49.9 Wh·kg −1 at 802 W·kg −1 ) and ultra-high power density (24 kW·kg −1 at 29.5 Wh·kg −1 ). This fascinating result further demonstrates the tremendous prospect of the synthesized HNCMs@NCS composites as high-performance supercapacitor electrode materials.
Graphical Abstract
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2023
·Vol. 34
·期 14
·1-13
·
IF 2.8
Hou Enhui,Kong Zhiguo,Wu Jianfeng,Wang Hairui,Nie Ping,Lu Ming,Chang Limin
Mxenes, a general term for a novel class of two-dimensional carbon–nitrogen compounds, which attracted extraordinary attention because of their unique electrochemical property. In this paper, an Ag-TiO 2 /MXene composite material was prepared for paraquat (PQ) detection by differential pulse voltammetry (DPV). It was found that the detection limit reached as low as 0.01 μM and linear range was from 0.05 to 15 μM (split into two sections: 0.05 to 1 μM and 1 μM to 15 μM). The Ag-TiO 2 /MXene composite electrode material exhibits excellent anti-interference properties to the species including the ions such as Cu 2+ , Na + , Ca 2+ , Zn 2+ , Cl − , SO 4 2− and biomass molecules such as glucose, ascorbic acid and uric acid. In the presence of organophosphorus pesticides, the electrode also showed good anti-interference. The excellent paraquat detection capability of the Ag–TiO 2 /MXene electrode material should be attributed to the synergistic effect obtained by decorating Ag and TiO 2 on MXene. In conclusion, the functionalization of MXenes through surface-modification provided a feasible route for ultrasensitive electrochemical sensors construction.
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Science China-Chemistry
·
2023
·Vol. 66
·期 6
·1722-1730
·
IF 9.6
Xiao Ruixue,Zhang Jie,Jiang Tingting,Zhou Yefan,Wang Yun,Xu Wenjia,Feng Yuhua
Precise structural control had attracted tremendous interest in nanosynthesis due to its great importance in tailoring the physical properties of nanomaterials. Here we report the synthesis of highly ordered CdS-Au-TiO 2 ternary Janus structure via template-protected sequential growth and conversion method. Arising from the integration of the rectification effect of Au-CdS and Au-TiO 2 Schottky barriers, the Janus configuration of the CdS-TiO 2 domains, the plasmonic effect of Au nanosphere, and the Z -scheme charge transportation, the CdS-Au-TiO 2 Janus structure showed high efficiency in the model photocatalytic degradation of methyl orange (MO) dye. Importantly, the well-defined structural order allowed the identification of the correlation between the structure and the catalytic performance. We believe that the synthetic control and the mechanism insights would help the design and synthesis of sophisticated nanostructures, and would eventually promote their applications in photocatalysis fields.
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Nature Communications
·
2023
·Vol. 14
·期 1
·1-10
·
IF 16.6
Zhai Li,Gebre Sara T.,Chen Bo,Xu Dan,Chen Junze,Li Zijian,Liu Yawei,Yang Hua,Ling Chongyi,Ge Yiyao,Zhai Wei,Chen Changsheng,Ma Lu,Zhang Qinghua,Li Xuefei,Yan Yujie,Huang Xinyu,Li Lujiang,Guan Zhiqiang,Tao Chen-Lei,Huang Zhiqi,Wang Hongyi,Liang Jinze,Zhu Ye,Lee Chun-Sing,Wang Peng,Zhang Chunfeng,Gu Lin,Du Yonghua,Lian Tianquan,Zhang Hua,Wu Xue-Jun
Epitaxial growth is one of the most commonly used strategies to precisely tailor heterostructures with well-defined compositions, morphologies, crystal phases, and interfaces for various applications. However, as epitaxial growth requires a small interfacial lattice mismatch between the components, it remains a challenge for the epitaxial synthesis of heterostructures constructed by materials with large lattice mismatch and/or different chemical bonding, especially the noble metal-semiconductor heterostructures. Here, we develop a noble metal-seeded epitaxial growth strategy to prepare highly symmetrical noble metal-semiconductor branched heterostructures with desired spatial configurations, i.e., twenty CdS (or CdSe) nanorods epitaxially grown on twenty exposed (111) facets of Ag icosahedral nanocrystal, albeit a large lattice mismatch (more than 40%). Importantly, a high quantum yield (QY) of plasmon-induced hot-electron transferred from Ag to CdS was observed in epitaxial Ag-CdS icosapods (18.1%). This work demonstrates that epitaxial growth can be achieved in heterostructures composed of materials with large lattice mismatches. The constructed epitaxial noble metal-semiconductor interfaces could be an ideal platform for investigating the role of interfaces in various physicochemical processes.
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CELLULOSE
·
2023
·Vol. 30
·期 9
·5607-5622
·
IF 5.7
Zhang Kecan,Li Jing,He Liang,Zhou Huajing,Guan Qingqing,Chen Keli,Shan Shaoyun,Hu Tianding
Cellulose nano/microfibres (CNFs/CMFs) with high aspect ratio were essential for mechanical strength and flexibility properties. In this study, the tobacco stem was employed as raw material for delignification with soda-oxygen (SO). By comparison with the caustic soda-anthraquinone (SAQ) treatment, based on process performance including pulp yield, residual lignin and fibre characteristics, the two-stage delignification process with total alkali 15% was selected for further preparing CNFs/CMFs with ultrasonication. Results showed that the aspect ratio of highly homogeneous CNFs/CMFs could achieve as ultra-high as 17,645. FTIR and XRD results showed that hemicellulose and lignin in CNFs/CMFs were widely removed, and the crystallinity was about 62%. TGA results exhibited that the degradation temperature was significantly enhanced to 330.2 °C. Finally, the CNF/CMF-based film was prepared and its folding endurance, tensile breaking strength, and burst strength could achieve 136, 61.28 N m/g, 278 kPa m 2 /g. The production of CNFs/CMFs from underutilized tobacco stems provided the potential to add value for industrial waste.
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JOURNAL OF NANOBIOTECHNOLOGY
·
2023
·Vol. 21
·期 1
·1-19
·
IF 10.2
Wang Yaotai,Zhang Zhong,Ren Li,Luo Yong,Wang Qi,Zou Jianzhong
Focused ultrasound ablation surgery (FUAS) is a novel therapy with a wide range of potential applications. However, synergists are crucial to the therapy process due to the ultrasonic energy's attenuation properties. As a result of the complex hypoxic environment in the tumor area and many factors, the existing synergists have limitations such as weak targeting, single imaging mode, and easy tumor recurrence after treatment. Because of the above deficiencies, this study intends to construct bio-targeted oxygen production probes consisting of Bifidobacterium that naturally target the hypoxia region of the tumor and multi-functional oxygen-producing nanoparticles equipped with IR780, perfluorohexane (PFH), CBP (carboplatin), and oxygen. The probes are expected to achieve targeted and synergistic FUAS therapy and dual-mode imaging to mediate tumor diagnosis and treatment. The oxygen and drugs carried in it are accurately released after FUAS stimulation, which is expected to alleviate tumor hypoxia, avoid tumor drug resistance, improve the effect of chemotherapy, and realize FUAS combined with chemotherapy antitumor therapy. This strategy is expected to make up for the deficiencies of existing synergists, improve the effectiveness and safety of treatment, and provide the foundation for future tumor therapy progress.Graphical Abstract
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