ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Lei Liu,Mengshu Kong,Youqiang Xing,Ze Wu,Yunfei Chen
As a member of the two-dimensional transition metal dichalcogenide family, rhenium disulfide (ReS2) is a highly competitive favorite in the field of photoelectric sensors. Nevertheless, the rapid recombination of electron–hole pairs and poor electronic transmission capacity of pure ReS2 limit its wider applications. As a new attempt to optimize its inherent structure and challenge its competency boundary, in this work, a bimetallic co-chamber feeding atomic layer deposition with a precise dose regulation strategy has been used to fabricate ReS2 nanotubes (ReS2-NTs) and MoS2–ReS2 heterojunction nanotubes (MoS2–ReS2-HNTs) based on the anodic aluminum oxide template sacrifice method for the first time. These obtained NTs have at least two advantages: they have a controllable diameter (40–500 nm), definite wall thickness (1 layer to 10 layers), and desirable Mo-to-Re ratio (0 to 90%), and their electron-transfer capacity and photocurrent response can be effectively enhanced by the incorporated Mo atoms. Further experiments indicated that MoS2–ReS2-HNTs with a real Mo-to-Re ratio of 31.0% exhibits the best photocurrent response performance, by which the ultrasensitive detection of cancer-related miRNA-155 with a linear range of 10 aM to 1 nM and a detection limit of 1.8 aM is achieved.
✓ 已验证
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Chong Li,Ran Tao,Zhiqiong Li,Jiahui Liao,Chen Fu,Jikai Zhang,Huiling Ong,Chenze Lu,Jingting Luo,Yongqing Fu
Humidity sensing is crucial for food production, environmental monitoring, microelectronic manufacture, and common living conditions. Thus, there is a high demand for development of high-performance humidity sensors with good stability, high precision and fast responses. In this study, Love wave mode humidity sensors were prepared using quartz-based SAW devices coated with composite sensing layers of accordion-like Ti 3 C 2 T x , MoS 2 nanoflowers and MoS 2 @Ti 3 C 2 T x hierarchical structure, respectively. The hydrophilic Ti 3 C 2 T x was used to provide abundant surface functional groups for adsorption of water molecules, and the hydrophobic MoS 2 enabled rapid adsorption and desorption of water molecules from the surface of MoS 2 @Ti 3 C 2 T x . The MoS 2 @Ti 3 C 2 T x coated Love wave humidity sensor presented an ultra-high sensitivity of 0.67 kHz/% RH in the wide humidity range from 11.3% RH to 97.3% RH, mainly attributed to the hierarchical structure of MoS 2 @Ti 3 C 2 T x with large specific surface areas, abundant adsorption sites and superhydrophilicity. Meanwhile, this Love wave humidity sensor showed fast response/recovery rates, great repeatability and long-term stability, indicating its great prospects in humidity detection applications.
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2022
·
IF 6.14
Luyao Wang,Zhe Bai,Xiangwen Zhang,Guozhu Li
Hydrodesulfurization (HDS) is an important technique that is widely adopted in the petroleum industry to remove harmful sulfur compounds for environmental protection. MoS2 is the most commonly employed HDS catalyst but tends to stack due to its high surface energy. Active MoS2 nanosheets are anticipated to be well supported for preventing aggregation and increasing accessibility. In the current study, two-dimensional Ti3C2 MXene is utilized as a novel support to controllably anchor MoS2 nanosheets for efficient HDS. The composite of Ti3C2-supported CoMoS2 (CoMoS2/Ti3C2) with a 3D interconnected network was successfully constructed by a facile, one-step hydrothermal method. Detailed characterizations showed that MoS2 nanosheets vertically grew in situ on and between the layers of Ti3C2 MXene. CoMoS2/Ti3C2 possesses a well-defined open structure with a larger specific surface area and a higher proportion of CoMoS active phase compared with unsupported CoMoS2. As catalyzed by CoMoS2/Ti3C2, the reaction rate constant was effectively increased to 2.8 times that on CoMoS2 for the HDS of dibenzothiophene. CoMoS2/Ti3C2 also showed good stability in a harsh high-temperature reaction environment.
✓ 已验证
DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2018
·Vol. 24
·期 71
·19075-19080
·
IF 5.16
Shuo Geng,Hu Liu,Weiwei Yang,Yong Sheng Yu
Graphical Go nano ! Porous MoS 2 nanosheets were synthesized by etching away Al in Al-doped MoS 2 . The optimized porous MoS 2 nanosheets show a better hydrogen evolution reaction (HER) activity owing to the activated basal plane (see figure). Molybdenum disulfide has drawn persistent interest as a promising nonprecious electrocatalyst alternative to Pt for the hydrogen evolution reaction (HER). However, the MoS 2 catalytic efficiency is still lower than the Pt-based catalysts owing to insufficient active sites with more inert basal planes. Herein, we designed and synthesized porous MoS 2 nanosheets to activate the basal planes by etching away Al in Al-doped MoS 2 . The optimized porous MoS 2 shows a small onset overpotential as low as 136 mV, a large cathode current density of 10 mA cm −2 at η =201 mV, a low Tafel slope of 62 mV decade −1 , and a high TOF of 0.29 H 2 s −1 per active site at η =200 mV. This study opens up new avenues for designing electrocatalysts based on porous MoS 2 or other layered materials with enhanced HER performance.
✓ 已验证
DOI
PubMed
高影响因子
Small
·
2021
·Vol. 18
·期 8
·2105775
·
IF 13.281
Xiaobo Feng,Jie Lei,Liang Ma,Qunle Ouyang,Yuxuan Zeng,Hang Liang,Chunchi Lei,Gaocai Li,Lei Tan,Xiangmei Liu,Cao Yang
Osteomyelitis is considered as the most serious bone infection, which can lead to the bone destruction or fatal sepsis. Clinical treatments through frequent antibiotics administration and surgical debridement bring inevitable side effects including drug-resistance and disfigurements. It is urgent to develop an antibiotics-free and rapid strategy to treat osteomyelitis. Herein, a bifunctional sonosensitizer that consists of porphyrin-like Zn single-atom catalysts (g-ZnN 4 ) and MoS 2 quantum dots is developed, which exhibits excellent sonodynamic antibacterial efficiency and osteogenic ability. It is found that the construction of heterogeneous interfaces of g-ZnN 4 -MoS 2 fully activates the adsorbed O 2 due to the increased interface charge transfer, enhanced spin−flip, and reduced activation energy of O 2 . The generated 1 O 2 can kill methicillin-resistant Staphylococcus aureus (MRSA) with an antibacterial efficiency of 99.58% under 20 min of ultrasound (US) irradiation. The Zn single atoms immobilized in g-ZnN 4 can be released steadily in the form of Zn 2+ for 28 days within safe concentration, realizing the great osteoinductive ability of such a sonosensitizer. For the treatment of MRSA-infected osteomyelitis, the inflammation and bone loss can be significantly suppressed through sonodynamic ion therapy. This work provides another strategy for developing high efficiency sonosensitizer through ultrasound interfacial engineering.
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Wuqing Zhu,Yinlei Lin,Wanwen Kang,Haiyan Quan,Yuyuan Zhang,Menglei Chang,Kun Wang,Min Zhang,Weibin Zhang,Zhiqiang Li,Hongyang Wei,Ting Fan,Dongchu Chen,Huawen Hu
The increasing environmental pollution calls for the development of stable functional materials for efficiently binding contaminants, while they can be synthesized and recycled easily. Herein, a three-dimensional (3D) aerogel is constructed by bio-inspired adhesion of graphene and MoS 2 sheets with polydopamine (PDA) through a one-step hydrothermal route for the adsorption of the water-soluble organic contaminants. The impact of the bio-inspired interfacial adhesion on the resulting composite aerogel is thoroughly investigated, e.g., the interfacial PDA layer renders the composite aerogel considerably more porous, together with the much higher specific surface area and pore volume, as well as strikingly smaller average pore size and superior stability upon exposure to air, relative to the counterpart without the bio-inspired adhesion. The 3.2 wt% PDA composition is adequate to yield a composite structure with small MoS 2 nanocrystallites uniformly dispersed over the modified graphene surface without aggregation. The adsorption of methylene green onto such a 3D composite architecture is spontaneous and endothermic and obeys the Langmuir isotherm model and pseudo-second-order kinetics, with the maximum adsorption capacities over 200 mg/g at all the operating temperatures and the satisfactory recycling properties without significant degradation after 5 cycles.
✓ 已验证
DOI
高影响因子
MINERALS ENGINEERING
·
2025
·
IF 5
Yunzhen Hu,Kangjing Wu,Shuai Wang,Zhanfang Cao,Xin Ma,Hong Zhong
The flotation separation of chalcopyrite (CuFeS 2 ) and molybdenite (MoS 2 ) is hindered by similar surface properties, typically requiring environmentally detrimental high-alkalinity conditions (pH > 10.0). Herein, we introduce 3,4,5-Trihydroxy-N,N-bis(2-hydroxyethyl)benzamide (TBHB), a gallic acid-derived surfactant, as an efficient selective depressant for chalcopyrite under near-neutral conditions (pH 6.0–8.0). Notably, chalcopyrite recovery is reactivatable via pH adjustment (pH > 9.0). Micro-flotation tests demonstrated TBHB's high selectivity, achieving 91.81% molybdenite recovery while suppressing chalcopyrite recovery to 12.61% at pH 8.0, outperforming conventional depressants (e.g., sodium thioglycolate). Artificial mixed minerals flotation further confirmed TBHB's efficacy, with a dosage of 75 mg/L achieving Mo recovery exceeding 80%, Cu recovery below 20%. Mechanistic investigations revealed TBHB chemisorbs on the chalcopyrite surface via phenolic hydroxyl-Fe coordination, supported by high adsorption capacity (> 1.6 mg/m 2 ), reduced hydrophobicity, and FTIR/XPS analyses, which showed Fe–O bond formation and red-shifted C=O/benzene ring vibrations. Zeta potential measurements affirmed pH-dependent adsorption/desorption. DFT calculations confirmed spontaneous adsorption ( ΔE = −1.8206 eV) and short O–Fe bond (1.99 Å), verifying Fe-site affinity. Conversely, TBHB showed negligible adsorption on the molybdenite surface, with values below 0.4 mg/m 2 and a contact angle of approximately 70°, preserving its floatability. This work establishes TBHB as a sustainable alternative for Cu-Mo separation, eliminating high-alkalinity requirements while advancing green reagent design through integrated experimental and computational insights.
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2020
·Vol. 12
·期 16
·9246-9254
·
IF 6.895
Junxiao Huang,Xuelei Pan,Xiaobin Liao,Mengyu Yan,Bruce Dunn,Wen Luo,Liqiang Mai
1T-MoS2 is widely used in the hydrogen evolution reaction (HER) due to its abundant active sites and good conductivity. However, 1T-MoS2 is thermodynamically metastable due to the distorted crystal structure. Recently, researchers have detected the J1 and A1g Raman peaks after the HER process and confirmed that the 2H–1T phase possesses good stability. Therefore, continuous HER is likely to transform 1T-MoS2 into a stable 2H–1T mixed phase. The in situ characterization of 1T-MoS2 individual nanosheets in the HER process is important to understand the intrinsic electrocatalytic behaviour at confined nanoscale, which has rarely been investigated. Herein, we built an individual 1T-MoS2 nanosheet micro–nano device by the intercalation of N-butyllithium into 2H-MoS2. Then, the device was kept at an overpotential (η) of 450 mV, which was much lower than the onset potential, for 20 minutes to ensure continuous HER. Through this electrochemical treatment, we successfully obtained a mixed phase of 2H–1T and monitored the electrochemical phase transition by in situ Raman mapping and atomic force microscopy (AFM). The HER performance of the 2H–1T phase was superior to that of 1T-MoS2 and 2H-MoS2. Additionally, computational simulations demonstrated that the 2H–1T phase exhibited optimal hydrogen adsorption energy. The presented work displays the excellent catalysis of the mixed phase obtained by the electrochemical phase transition, which provides new directions for improving the catalytic activity of TMDs.
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 22
·11435-11441
·
IF 11.301
Peng Liu,Jianyue Yan,Jianxin Mao,Jiawen Li,Dongxue Liang,Wenbo Song
The alkaline hydrogen evolution reaction (HER) is an extremely important reaction in energy conversion and electrolytic industries. Pristine MoS2 exhibits poor alkaline HER activity due to weak water adsorption and dissociation. Precisely manipulating active water dissociation components to form a functional interface with MoS2 would be an effective strategy. Herein, in-plane intergrowth CoS2/MoS2 ultrathin nanosheets have been achieved via a one-step pyrolytic sulfurization of a small-sized Co/Mo-MOF precursor. The in-plane intergrowth structure produced abundant interfaces and modulated the interfacial electronic structure, demonstrating an accelerated water dissociation process. Ultralow overpotentials at both onset (16 mV) and 10 mA cm−2 (75 mV) have been obtained, which surpass those of most top-rated MoS2-based materials and are even proximate to those of commercial Pt/C (0 mV at onset and 60 mV at 10 mA cm−2, respectively). Under a large current density of 400 mA cm−2, the intergrowth nanosheet exhibited long-term stability, showing potential for applications in alkaline water splitting devices.
✓ 已验证
DOI
高影响因子
Journal of Physical Chemistry Letters
·
2025
·
IF 4.6
Yuhui Sun,Junnan Han,Min Wang,Zhihuan Li,Zijie Lin,Shimin Chen,Zehui Zhang,Shijie Yang,Linwei Yu,Zhongwei Yu,Guangbin Zhang,Wei Li,Songke Mao,Hucheng Song,Jun Xu,Kunji Chen
The global energy crisis and unsustainable reliance on fossil fuels make it particularly urgent to develop efficient renewable energy storage solutions. Aqueous zinc–air batteries (ZABs) have become extremely promising candidates due to their low cost, abundant surface resources, inherent safety, and high theoretical energy density. This study explores the feasibility of using seawater as an electrolyte for ZABs, with the aim to reduce costs and alleviate competition for limited freshwater resources. Research results indicate that ZABs using seawater electrolytes with varying salinities (1.4–10%) show good bifunctional catalytic performance in the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) with defect-driven Co3O4–MoS2 bifunctional catalysts, while maintaining strong catalytic activity and stability in nonextreme salinity environments. The assembled ZABs with defect-driven Co3O4–MoS2 bifunctional catalysts display a charge–discharge voltage difference of less than 1.1 V, can stably operate for more than 360 cycles at a current density of 5 mA/cm2, and exhibit strong tolerance to halogen ions, with performance comparable to that of batteries using conventional deionized water-based electrolytes. These findings underscore the feasibility of seawater-based ZABs, breaking through the limitations of traditional deionized water-based electrolytes and expanding the application prospects of aqueous ZABs in the realm of sustainable energy storage.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Yingzhi Chen,Le He,Miaohua Zhou,Yuanhong Zhong,Ming Sun,Lin Yu
Icing phenomena pose significant challenges to various industries, highlighting the critical need for effective anti-icing and de-icing solutions. Herein, a superhydrophobic photothermal composite, MoS 2 @PDMS-EP (PDMS denotes polydimethylsiloxane and EP represents epoxy resin), is designed for anti-icing and de-icing coatings. The coating, with a surface contact angle of 152.5° and a minimal sliding angle of 7.0°, demonstrates remarkable superhydrophobicity. Under -15 °C, the coating could delay ice formation for 13907 seconds, 143 times longer than the bare Al-substrate. The synthesized MoS 2 provides full-spectrum absorption, allowing the coating to rapidly warm up to a maximum temperature of 75.0 °C within 100 seconds under irradiation. Even at a -20 °C, the frozen coating could begin defrosting within one minute and completely melted within three minutes, achieving a maximum surface temperature of 11.1 °C due to the photothermal effect. Durability testing indicates that the coating maintains stable anti-icing effects under acidic conditions (pH 1-7), showing great potential for application in acidic outdoor environment. This study highlights a superhydrophobic MoS 2 @PDMS-EP coating with excellent anti-icing and photothermal ice-melting properties, offering a promising solution to de-icing and anti-icing problems.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Feng Xiao,Haoqun Yao,Ruiyang Qiu,Wenjie You,Zichao Cai,Xiaoyu Wang,Weikang Hu,Weijun Liu,Zijian Wang
Bacterial infection impairs skin wound healing, leading to a growing healthcare challenge. Biomolecular microneedles are developed to deliver the antibiotics, offering desirable broad-spectrum antibacterial activity for accelerating wound healing. However, the application of antibiotics is limited owning to potential drug resistance. Reactive oxygen species (ROS) have recently emerged as the next-generation antibacterial agents, due to their distinctive advantages over antibiotics. It remains a challenge to endow the antibiotic-free microneedles with enhanced ROS-production and antibacterial efficiency. Herein, a core-shell ZIF-67/MoS 2 (ZM) heterojunction was synthesized using a hydrothermal method. Compared to ZIF-67 nanoparticles, ZM heterojunction not only generated more photo-generated electrons, but also reduced the energy loss during electron transfer. Thus, the photocatalytic potential of ZM heterojunction got significantly improved for ROS production. ZM heterojunction was integrated into the double-layer gelatin methacryloyl/ZM heterojunction (GMZM) microneedle. The photothermal nanozyme-like activity, broad-spectrum antibacterial activity, and biocompatibility of GMZM microneedle were verified. Under NIR irradiation, GMZM microneedle completed 98.02 ± 1.22 % of wound closure period within 16 days. The overall application effect of GMZM microneedle was not inferior to that of commercial wound dressings from 3 M Co., Ltd. In conclusion, this study developed an antibiotic-free GMZM microneedle demonstrating superior performances, showing great potential for the treatment of infected wounds.
✓ 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）