BIOELECTROCHEMISTRY
·
2023
·
IF 5
Jianhua Yan,Kaidi Wang,Hongjie Liu,Liwei Wang,Yixiang Li,Guoqing Zhang,Li Deng
MiRNA-155 is a typical biomarker for breast cancer. Since its low concentration in the physiological environment and the limitations of conventional miRNA detection methods like Northern imprinting and RT-qPCR, convenient, real-time, and rapid detection methods are urgently needed. In this work, an electrochemical biosensor was constructed based on the flower-like MoSe 2 @1T-MoS 2 heterojunction electrode material and specific RNA recognition probes, which can realize the rapid determination of miRNA-155 content with a wide detection range from 1 fM to 1 nM and a limit of detection (LOD) as low as 0.34 fM. Furthermore, the contents of miRNA-155 in blood samples of tumor-bearing mice and normal mice were measured as 724.93 pM and 21.42 pM, respectively by this biosensor, demonstrating its strong identification ability and miRNA-155 can be regarded as an ideal diagnostic marker. On this basis, a portable sensor platform was designed for on-site detection simulation and showed good recovery efficiency from 95.80% to 98.69%. Meanwhile, compared with the standard detection method RT-qPCR, the accuracy and reliability of the biosensor were verified, indicating that the biosensor has the potential to provide point-of-care testing (POCT) for the early diagnosis of breast cancer.
研究领域:
生物医学工程
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分子生物学
·
癌症诊断
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2023
·Vol. 15
·期 24
·10437-10446
·
IF 6.7
Xiaodan Yin,Wei Zheng,Haifeng Tang,Peigen Zhang,ZhengMing Sun
Electrode materials play a crucial role in the electrochemical performance of supercapacitors (SCs). In recent years, 1T-MoS2 and MXene have been extensively studied as potential electrode materials. However, 1T-MoS2 suffers from the metastable property, rigorous synthesis process, and nanosheet restacking issue, while the specific capacitance of MXene is restricted, limiting their supercapacitor performance. To fully exploit the advantages of both materials and address their respective problems, 1T-MoS2/Ti3C2Tz 2D/2D heterostructures are synthesized through a simple hydrothermal method. The existence of heterojunctions is confirmed by XPS and TEM. The different ratios between MoS2 and Ti3C2Tz are investigated, and the electrochemical test is carried out in a “water-in-salt” electrolyte (20 mol kg−1 LiCl). The results demonstrate that the heterostructures exhibit enhanced electrochemical performance. The optimized ratio of 1T-MoS2/Ti3C2Tz is 2 : 1, and the specific capacitance reaches 250 F g−1 at 1 A g−1 with a wide potential window of −0.9 to 0.5 V vs. Ag/AgCl. The capacitance retention is 82.3% (at 10 A g−1) after 5000 cycles, and the average coulombic efficiency (ACE) was 99.96%. Assembled into symmetric SCs (SSCs), the energy density of 12.0 W h kg−1 at a power density of 139.9 W kg−1 is achieved with a high voltage of 1.4 V. It also has 82.6% capacitance retention and 99.95% ACE after 5000 cycles at 5 A g−1. This work is expected to stimulate novel research towards the wide application of 2D/2D heterostructures in SCs.
研究领域:
材料科学
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电化学
·
纳米技术
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能源存储
✓ 已验证
DOI
高影响因子
Frontiers in Environmental Science
·
2023
·
IF 4.6
He Yutian,Wang Xinzhi,Ke Yuhan,Qiu Yiquan,Zhou Qiao,Shen Zheyu,Xie Han,Li Yingqiang,Huang Mingzhi
Introduction: Dimethyl phthalate (DMP) which has been widely detected in water is neurotoxic to humans and should be effectively eliminated. Persulfate-based advanced oxidation processes are considered to be reliable methods aiming at emerging contaminants degradation, while an efficient catalyst is urgently needed for the activation of the reaction. As a typical 2D material, 1T-MoS2 is expected to be applied to the activation of persulfate owing to its abundant active sites and excellent electrical conductivity. In practical applications, 1T-MoS2 has the phenomenon of reunion which affects the exposure of its catalytic sites.Methods: Therefore, in this study, we used waste cow manure as a raw material to prepare biochar and achieved high exposure of 1T-MoS2 activation sites by loading 1T-MoS2 onto the surface of cow manure biochar through hydrothermal synthesis. The prepared composite catalytic material CMB@1T-MoS2 was used to activate PMS for the degradation of DMP.Results: It was found that CMB@1T-MoS2 has better effect than CMB or 1T-MoS2 alone for the degradation of DMP, reaching 77.65% at pH = 3. Under alkaline conditions, the degradation rate of DMP was reduced due to the inhibition of the catalytic process. Among the different coexisting anions, HCO-3 interfered and inhibited the degradation process the most, leading to the lowest degradation rate of DMP with 42.45%.Discussion: The quenching experiments and EPR analysis showed that SO-4• and •OH were the main ROS in the CMB@1T-MoS2/PMS process. This study promotes the resourceful use of cow manure and is expected to provide a novel persulfate-based advanced oxidation process catalyzed by CMB@1T-MoS2 for the elimination of DMP in an aqueous environment.
研究领域:
环境科学
·
催化材料
·
水资源管理
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Liming Dai,Chenchen Fang,Xiaoyuan Zhang,Yaya Wang,Rui Gao,Ying Huang,Lin Zhang,Liang Xue,Pan Xiong,Yongsheng Fu,Jingwen Sun,Junwu Zhu
The sp 3 hybridization of surface sulfur in metallic phase molybdenum disulfide (1T MoS 2 ) is identified as the intrinsic bottleneck for alkaline hydrogen production (HER), where their electron-saturated nature elevates the kinetic barrier for water dissociation. To overcome this limitation, a charge-buffered sulfidation strategy is reported to stabilize anionic boron (B δ− ) within 1T MoS 2 . By employing molybdenum aluminum boride as the precursor, the B δ− dopants can be efficiently preserved via the topological confinement imposed by Mo─B─Mo network. This approach also maintains the 1T phase integrity through Al-mediated electron compensation. Theoretical and experimental analyses reveal that B δ− substitution generates vertically oriented empty p z orbitals through sp 2 hybridization, which elevates orbital energy to align with molecular orbitals of water, significantly reducing the O─H cleavage barrier by over 80% compared to 1T MoS 2 . Concurrently, the B─Mo─S networks upshift adjacent sulfur 3p band centers to optimize the hydrogen adsorption path. These dual functionalities endow the p z -functionalized 1T MoS 2 with a low overpotential of −30 mV at 10 mA cm −2 , and high-current operation of 1 A cm −2 at 1.779 V in an anion-exchange membrane electrolytic cell. This work not only establishes orbital alignment as a transformative design principle for advanced electrocatalysts, but also paves a novel synthetic pathway for 1T transition metal disulfides.
研究领域:
电化学
·
材料科学
·
催化
·
纳米技术
·
能量转换
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Lin Jin,Lin Zhang,Hao Liang,Yuhui Ao,Song Wang,De Sun
Solar-driven interfacial water evaporation is often regarded as a promising method for producing fresh water from seawater. However, developing an evaporator with an ideal evaporation rate and efficient seawater desalination capabilities remains a significant challenge, especially when considering the mechanical performance requirements in large-scale practical use. Based on this, this work proposed a Janus-structured 3D carbon fiber (CF)-reinforced solar-driven evaporator fabricated through a vacuum-assisted infusion process (VAIP). A heterogeneous structure of 1 T MoS 2 -MXene, formed through ion embedding, was adorned on the surface to serve as an efficient photothermal conversion material. Due to the synergistic advantages, the Janus 1 T MoS 2 -MXene/ CSA/CF (JMMC) evaporator achieved excellent solar absorption efficiency of 94 % in the range of 200–2500 nm. The evaporator exhibited an evaporation enthalpy as low as 1556.4 kJ·kg −1 , which facilitated the escape of water molecules at the interface. The JMMC evaporator delivered a high evaporation rate of 2.29 kg m -2 h −1 and an efficiency of 93.8 % under the irradiation of 1 sun (1.0 kW/m −2 (−|-)). The influence of the heterogeneous structure of 1 T MoS₂-MXene on the water evaporation rate was thoroughly assessed through molecular dynamics simulations. Besides, the mechanical performance of this evaporator was highly satisfactory, rendering it suitable for application in demanding and complex usage environments. Furthermore, its remarkable conductivity facilitated an excellent Joule heating effect even at low voltages, enabling water evaporation under challenging circumstances such as overcast skies or indoor settings. The versatility of this scalable evaporator holds great promise for addressing the issue of freshwater scarcity.
研究领域:
材料科学
·
环境工程
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2020
·
IF 6.215
Jiayong Dai,Le Yao,Xingsu Gao,Shumeng Bai,Xian Chen,Lei Li,Jibin Song,Huanghao Yang
The establishment of analytical methods with superior sensitivity, selectivity, accuracy, and stability, as well as ultralow detection limits inspired a broad range of research enthusiasm. In this work, we developed an electrochemical method for detecting mercury ions using metallic 1T-MoS 2 nanosheets, which was firstly fabricated using phase engineering strategy and then exfoliated. Remarkably promoted sensitivity and significantly lowered limits of detection (LODs) were achieved due to the dramatically reduced charge transfer resistance of 1T-MoS 2 nanosheets compared with that of the semiconducting 2H-MoS 2 nanoflakes. After electrode modification and optimization, working curves for both two materials were obtained. Astonishingly, the LODs of 1T-MoS 2 modified glassy carbon electrodes (GCEs) was calculated to be 1.54 × 10 −19 M (D L = 3σ/k), which was six orders of magnitude lower than that of 2H-MoS 2 (1.46 × 10 −13 M). And 1T-MoS 2 -based electrochemical detection method also exhibited superior selectivity towards other ten ions selected because of the high affinity between Hg and S. The stability and reproducibility of the new method was impressive as well, and the recovery rates using spiked real water samples were all in the range of 99.8–101.2% due to the superb sensitivity. All results proved that the metallic 1T-MoS 2 nanosheets a promising material for electrochemical detection of mercury ions.
研究领域:
分析化学
·
环境科学
·
纳米技术
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Qing Zeng,Mengxi Han,Yifan Zhu,Qingyu Wu,Jianlin Zhou,Xinhua Hu,Bo You
Solar-control window film is an effective solution for reducing indoor cooling energy consumption. In this study, a modified 1T-phase molybdenum disulfide (M1T-MoS2)/phenolic resin composite film with low reflectivity, high imaging clarity and broadband optical blocking performance was developed. To enhance the dispersion of 1T-phase MoS2 nanosheets within the resin matrix, surface functionalization was achieved using trimethoxysilylpropanethiol (TOPE), exploiting the strong chemical affinity between thiol groups and sulfur vacancies. Furthermore, in situ curing of the phenolic resin facilitated dehydration condensation between silanol groups on the modified nanosheets and hydroxymethyl groups of the resin, resulting in the nanosheets being firmly anchored within the polymer network. The improved dispersion of the metallic-like M1T-MoS2 nanosheets allows the M1T-MoS2/phenolic resin film, with a thickness of only 40 μm and a filler content of 1.75 wt %, to achieve a light shading efficiency exceeding 85% for visible and near-infrared light below 1500 nm. Additionally, the film demonstrates high imaging clarity and a low visible-light reflectance of approximately 7%, contributing to the reduction of glare and light pollution caused by excessive reflection from window films. Experimental photothermal efficiency tests and finite element analysis demonstrated that the film’s high light-shading performance was primarily due to its strong optical absorption rather than reflection. This study presents an effective approach for fabricating broadband solar control window films and provides a strategy to enhance the stability of 1T-phase MoS2 in practical applications. These findings contribute to expanding the applications of 1T-MoS2 in composite materials and energy-related fields.
研究领域:
材料科学
·
纳米技术
·
光学
·
能源效率
·
聚合物复合材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2024
·
IF 11.2
Haonan Zhai,Huibin Liu,Yufen Zhang,Jinjin Wen,Wenyue Yang,Huiting Xu,Xiaoteng Yan,Wenchao Peng,Jiapeng Liu
Aqueous zinc ion batteries (AZIBs) are now gaining widespread attention because of their cost-effectiveness, intrinsic safety, and high theoretical capacity. Nevertheless, it is still crucial to exploit high-performance electrode materials. Herein, the freestanding 1T MoS 2 @Mxene hybrid films (MMHF) were synthesized and directly served as the cathode of AZIBs. The freestanding MMHF exhibited the hierarchical layer structure with excellent conductivity and strong interfacial interaction, which promoted the exposure of more active sites and the transfer of electrons/ions. Consequently, the MMHF displayed a high specific capacity of 270 mAh g –1 (at 0.1 A g –1 ) and good rate performance. Impressively, even after 2500 cycles under 10 A g –1 , the freestanding MMHF cathode contributed a superior specific capacity of 108 mAh g –1 with an outstanding capacity retention rate of 94.7 %. Meanwhile, the energy storage mechanism of the MMHF electrode was also elucidated through ex-situ characterizations. Furthermore, the density functional theory (DFT) computations revealed the strong interfacial interactions between 1T MoS 2 and MXene, high conductivity, and low Zn 2+ diffusion barrier. This work provides a new viewpoint for designing freestanding transition metal disulfides (TMDs) -MXene hybrid film electrodes for AZIBs.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Yue Tian,Xiaoyan Liu,Xiaoqing Cao,Dieqing Zhang,Shuning Xiao,Xinru Li,Zaiyuan Le,Xianyang Li,Hexing Li
1T MoS 2 has recently attracted growing interests for energy storage due to the excellent conductivity, expanded layer space and extra exposed active sites. However, its application is still limited due to the complicated synthesis under harsh condition and poor structural stability. Herein, we report a novel MoS 2 /Cu nanowires (NWs) by microwave-assisted self-assembly of ultrathin 1T MoS 2 onto Cu NWs with interconnected conductive network and robust one-dimensional (1D) structure. As anode material for LIBs, 1T MoS 2 /Cu NWs exhibits high capacity and stability owning to the enhanced electron transport and lithium ions intercalation. Meanwhile, the enriched nanovoids supply extended space for buffering the volume change and boosting electrolyte penetration during cycling process. Moreover, Cu doped MoS 2 could also stabilize the 1T phase, leading to the excellent anode durability. It delivers a high reversible capacity of 570.6 mAh g −1 after 250 cycles at a current density of 0.5 A g −1 . Enhanced rate performance is also achieved with excellent capacity retention of 914.6 mAh g −1 at 0.1 A g −1 and 465.2 mAh g −1 at 2 A g −1 , respectively.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Yinghong Ji,Xiaoyan Ding,Yanjun Xue,Jingjing Wang,Jian Tian
The formation of composites by loading co-catalysts on semiconductor photocatalysts to improve hydrogen (H 2 ) evolution performance is a feasible strategy. Metallic 1T phase molybdenum disulfide (MoS 2 ) as cocatalysts were decorated on zinc indium sulfide (ZnIn 2 S 4 ) nanoflowers by a grinding method to construct 1T-MoS 2 @ZnIn 2 S 4 composites. The H 2 production rate of 1T-MoS 2 @ZnIn 2 S 4 composites with optimum 7 wt% 1T-MoS 2 loading achieves 15.6 mmol g −1 h −1 , 5.5 times higher than ZnIn 2 S 4 nanoflowers. The apparent quantum efficiency (AQY) increases from 3.1 % (ZnIn 2 S 4 nanoflowers) to 13.0 % (1T-MoS 2 @ZnIn 2 S 4 composites) under the wavelength light irradiation at λ = 370 nm. The loading of metallic 1T-MoS 2 with abundant edge and substrate active sites on ZnIn 2 S 4 can enhance visible light absorption, promote the transfer of electrons, and inhibit carrier recombination, thereby improving photocatalytic performance. This work offers inspiration for the design of composite photocatalysts with efficient photocatalytic capabilities.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
AICHE JOURNAL
·
2024
·
IF 3.5
Yaning Zhang,Shiyuan Fan,Siqi Gong,Huibin Liu,Huiting Xu,Junjie Qi,Honghai Wang,Chunli Li,Wenchao Peng,Jiapeng Liu
Capacitive deionization (CDI) has attracted significant attention as a water treatment technology owing to its low cost, high efficiency, and eco-friendliness. However, the unsatisfactory desalination performance of traditional electrode materials hinders the development of CDI. Herein, 1T-MoS 2 /C hybrid microspheres are successfully fabricated through confinement and phase engineering strategies. The confinement effect of porous hollow carbon microspheres reduces the overgrowth and agglomeration of MoS 2 nanosheets, which is beneficial for exposing more active sites and enhancing stability. Meanwhile, the 1T phase MoS 2 displays high intrinsic conductivity and large interlayer spacing, which is conducive to rapid insertion/extraction of Na + . Consequently, 1T-MoS 2 /C hybrid becomes a prospect electrode material for CDI, which showcases outstanding desalination capacity (48.1 mg/g at 1.2 V), eminent desalination rate as well as exceptional stability. Moreover, the desalination mechanisms are clarified through various characterizations and density functional theory calculations. This study provides new perspectives on designing high-performance MoS 2 -based CDI electrode materials.
研究领域:
材料科学
·
环境科学
·
水处理技术
✓ 已验证
产品关联
DOI
高影响因子
ENERGY & FUELS
·
2023
·
IF 5.3
Jun Tang,Jinzhao Huang,Sixuan Zhang,Zehui Liu,Xiaolong Deng
Metal-phase MoS2 (1T-MoS2) is considered a promising candidate as a catalyst for the hydrogen evolution reaction (HER). However, the instability of 1T-MoS2 limits its electrocatalytic activity. Herein, we first synthesized 1T-MoS2 with excellent HER catalytic performance by a simple one-pot hydrothermal strategy of introducing the d-electron-rich transition metal atom Ni into MoS2. A bimetallic monatomic catalyst (Pt@1T-MoS2–Ni) was also prepared by modifying 1T-MoS2–Ni with Pt single atoms (Pt SAs). Experiments show that the electron transfer caused by Ni doping leads to the 1T phase transition, and the modification of Pt SAs further improves the electrical conductivity. These two factors synergistically modulate the electronic composition of MoS2 and increase the number of reactive sites. In consequence, the Pt@1T-MoS2–Ni catalyst exhibits significantly enhanced HER activity, achieving an overpotential as low as 76 mV at 10 mA/cm2 with the corresponding Tafel slope of only 46 mV/dec. Moreover, the current attenuation is negligible within 12 h, surpassing the performance of MoS2. This study offers ideas for improving the efficiency and stability of 1T-MoS2 catalyst designs.
研究领域:
材料科学
·
电催化
·
能源化学
✓ 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）