MOLECULES
·
2023
·Vol. 28
·期 4
·1541
·
IF 4.6
Pascaline Sanga,Juanjuan Wang,Xin Li,Jia Chen,Hongdeng Qiu
Developing a simple and efficient method for removing organic micropollutants from aqueous systems is crucial. The present study describes the preparation and application, for the first time, of novel MXene-decorated bismuth ferrite nanocomposites (BiFeO3/MXene) for the removal of six sulfonamides including sulfadiazine (SDZ), sulfathiazole (STZ), sulfamerazine (SMZ), sulfamethazine (SMTZ), sulfamethoxazole (SMXZ) and sulfisoxazole (SXZ). The properties of BiFeO3/MXene are enhanced by the presence of BiFeO3nanoparticles, which provide a large surface area to facilitate the removal of sulfonamides. More importantly, BiFeO3/MXene composites demonstrated remarkable sulfonamide adsorption capabilities compared to pristine MXene, which is due to the synergistic effect between BiFeO3and MXene. The kinetics and isotherm models of sulfonamide adsorption on BiFeO3/MXene are consistent with a pseudo-second-order kinetics and Langmuir model. BiFeO3/MXene had appreciable reusability after five adsorption–desorption cycles. Furthermore, BiFeO3/MXene is stable and retains its original properties upon desorption. The present work provides an effective method for eliminating sulfonamides from water by exploiting the excellent texture properties of BiFeO3/MXene.Keywords:MXene;bismuth ferrite;nanocomposite;sulfonamide;adsorption
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Bing Liu,Xia Zhang,Jialong Chu,Fei Li,Caixia Jin,Jing Fan
Co-catalysts can achieve efficient separation of photogenerated carriers and are considered as a promising strategy for solar photocatalytic removal of pollutants. Herein, we reported the synthesis of nanocomposite of BiOIO 3 /Ti 3 C 2 MXene combining two dimensional 2D BiOIO 3 with 2D Ti 3 C 2 MXene co-catalyst. The few-layered 2D Ti 3 C 2 MXene provided more adsorption and reaction sites. Furthermore, the synergism of intimate interfacial contact between the two 2D nanosheets and robust metallic electrical conductivity of Ti 3 C 2 MXene significantly accelerated the separation and migration of photogenerated charge carriers. A variety of organic pollutants were proved to be effectively degraded by 2D/2D BiOIO 3 /Ti 3 C 2 MXene composites. The degradation efficiencies followed the order tetracycline hydrochloride (93.4 %) > diclofenac sodium (87.6 %) > levofloxacin hydrochloride (77.4 %) > 4-nitrophenol (43.3%). Besides, the satisfactory recycling and stability of BiOIO 3 /Ti 3 C 2 MXene for the degradation of organic pollutants in water under solar irradiation predicted its good prospect for practical applications.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Yining Ding,Lei Xu,Shengnan Chen,Youfu Zhu,Yuehua Sun,Liqiang Ding,Bingyu Yan,Seeram Ramakrishna,Jun Zhang,Yun-Ze Long
Skin cancer is usually treated by surgical excision in the clinic. However, the unavoidable residual cancer cells and possible wound infection lead to a high tumor recurrence rate and slow wound recovery. Existing photothermal film materials tend to have a higher heat distribution on the upper surface than on the lower surface. This leads to low temperature on the lower surface attached to the skin that cannot produce effective photothermal effects. Herein, we designed a micro-nano effect combining Ti 3 C 2 T x MXene and fibers, which produces a similar lens effect to regulate the heat generated on the upper surface transmitting to the lower surface of the fiber membrane. Due to its asymmetric and unidirectional thermal conductivity having been significantly promoted, the fiber membrane exhibits effective ablating residual cancer cells after surgical excision attached to the wound as a dressing, and thus effectively inhibits tumor growth. In addition, this thermal management fiber membrane also exhibits an excellent bactericidal effect, accelerating post-surgical wound healing without losing the property of preventing post-surgical tumor recurrence.
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2022
·Vol. 14
·期 24
·8640-8648
·
IF 8.307
Tao Chen,Changyu Yang,Xuewen Hu,Qicheng Zhang,An Cai,Huibin Liu,Yang Li,Wenchao Peng,Fengbao Zhang,Xiaobin Fan
Aqueous rechargeable zinc-ion batteries (ZIBs) are emerging in grid energy storage due to zinc abundance and intrinsic safety. However, developing suitable cathode materials with satisfactory stability and rate capacity remains a great challenge. Herein, a structure of layered MXene derived nanoporous VOx wrapped with graphene nanosheets (rGO–VOx) is constructed as a cathode for ZIBs. The incorporation of two typical 2D materials imparts composites with shortened diffusion pathways and increased electrical conductivity. Thus, the rGO–VOx cathode exhibits a remarkable rate capability of 196 mA h g−1 at 8 A g−1 and long-term stability with 90% retention after over 1200 cycles at 5 A g−1 in an aqueous coin cell. The Zn storage mechanism is also systematically investigated. The layered V2O5 transforms into layered ZnxV2O5·nH2O with larger interspacing upon cycling. NaV6O15 and the in situ formed ZnxV2O5·nH2O co-contribute to the subsequent insertion and extraction process.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2022
·
IF 11.322
Guifang He,Lili Wang,Xiaojing Bao,Zhiwei Lei,Fanggang Ning,Meng Li,Xiansheng Zhang,Lijun Qu
Flexible wearable heaters have received increasing attention in energy-saving, diverse personal thermal requirements, and healthcare management. Herein, considering the fire safety application of wearable heaters, the biodegradable alginate fibers and flame retardant (FR) viscose fibers are attempted to mix and weft-knit into the fabric, which interestingly exhibits synergetic flame retardancy with low afterflame time, afterglow time, and peak heat release rate . Further, assisted by the highly conductive Ti 3 C 2 T x (MXene) nanosheets on the surface of the fabric and the periodic nested loops of the knitted fabric, the integrated fabrics possess excellent electrical performance (2Ω sq −1 ) with the MXene content of 9.13 wt%, electromagnetic interference (EMI) shielding efficiency of 55 dB in the X band , preferable Joule heating performance under safe low voltage (123 °C at 3.5 V) and sunlight/far-infrared heating performance. The superior flame retardancy and multifunctional properties arose from the high-temperature induced well-constructed char layer, unique functionality of interconnected MXene network and multiple scattering of light or wave. Combined with the superior flame retardancy and multifunctional properties, the weft-knitted alginate/FR viscose fabrics with MXene coating become the ideal candidate materials in the fields of wearable heaters with high safety.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2022
·
IF 9.463
Qiang Chen,Qingsen Gao,Xin Wang,Dirk W. Schubert,Xianhu Liu
It is a challenge to manufacture pressure sensing materials with flexibility, high sensitivity, wide detection range for the development of intelligent electronic products. Herein, a pressure sensor based on thermoplastic polyurethane (TPU)/polydopamine (PDA)/MXene conductive composite foam (TPMF) was prepared by a combination of directional freezing and dip-coating methods. The compressive strength of anisotropic TPU foam (TF) in the vertical direction is increased by 48.1% compared with isotropic foam. Besides, the conductive foam (0.25 S/m) with an MXene content of 3.45 wt% exhibits low density (105.5 mg/cm 3 ), high porosity (91.2%) and good resistance response behavior. The sensor based on TPMF exhibits excellent flexibility, fast response times (∼40 ms), and good durability over 5000 cycles. Furthermore, the composite foam has excellent recognition ability for different compressive strain amplitudes (up to 80%) and a wide stress range (10 Pa-122.5 kPa), as well as a high gauge factor (GF) up to 2.36 in the strain range of 2.5%-20%. The sensor has shown application potential in many fields, including voice recognition, health monitoring, motion monitoring, and artificial electronic skin.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER TESTING
·
2022
·
IF 4.931
Zhaoxia Luo,Liqun Zhang,Yongri Liang,Shipeng Wen,Li Liu
To achieve high deformation under a low electric field intensity is still a big challenge for the dielectric elastomers (DE) potentially used in artificial electronic skin and artificial muscles. Herein, poly-dopamine (PDA) modified 1D barium titanate (BT@PDA) nanofibers and 2D MXene nanosheets with high aspect ratio and large dipole moment were fabricated, and introduced into TPU elastomers. Results showed that the interfacial polarization and micro-capacitor structure formed by MXene sheets lead to the high dielectric constant, and high dielectric loss of MXene/TPU composites with low modulus. The interfacial polarization caused by BT@PDA nanofibers resulting in high dielectric constant and low dielectric loss of BT@PDA/TPU composites with high modulus. Combing the advantages of the two fillers, the MXene/BT@PDA/TPU composites showed high dielectric constant, low dielectric loss, low modulus. The electrical sensitivity factor of 0.5 wt% MXene/5 wt% BT@PDA/TPU composite (11.38) was much higher than the sum of that of 0.5 wt% MXene/TPU (1.73) and 5 wt% BT@PDA/TPU (4.35) composites at a low filler content, showing the 0.5 wt% MXene/5 wt% BT@PDA/TPU dielectric composite had a large deformation under a low electric field. This work can provide an effect strategy to design DE nanocomposites with good deformation performance.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2022
·
IF 4.598
Xiao Zhang,Dong An,Zhaoshun Bi,Wei Shan,Beibei Zhu,Long Zhou,Liangmin Yu,Han Zhang,Shuwei Xia,Meng Qiu
High-resolution electrochemical sensors with excellent sensitivity and selectivity are urgently needed for simultaneous monitoring of heavy metal ions (HMIs) in the environment. In this study, a nitrogen-doped carbon-coated Ti 3 C 2 -MXene heterostructure (Ti 3 C 2 @N-C)-based electrochemical sensor was developed for simultaneously determining (Cd 2+ ) and (Pb 2+ ) in seawater and tap water via square wave anodic stripping voltammetry (SWASV). The sensor exhibits excellent performance with a low limit of detection (LOD) (Cd 2+ 2.55 nM, Pb 2+ 1.10 nM), as well as excellent selectivity in the presence of interfering ions (Zn 2+ , Fe 3+ , Fe 2+ , Co 2+ , Ni 2+ , Mn 2+ , Cu + , Cu 2+ , and K + ) and high resolution for simultaneous detection of Cd 2+ and Pb 2+ . The N-C and Ti 3 C 2 -MXene heterostructure improves the conductivity of the composites by accelerating the electron transfer. The nitrogen-doping in Ti 3 C 2 @N-C provides adsorbent sites for electrons to coordinate with HMIs. Due to the heterostructure and the coordination by nitrogen, the interface charge transfer is enhanced and the number of selective adsorption sites is increased, improving the metals determination performance. This study proposes a new strategy for improving the electrochemical characteristics of Ti 3 C 2 -MXene by using heterostructure and nitrogen-doping effect, and develops a highly sensitive sensor for selective and simultaneous determination of HMIs.
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2022
·Vol. 24
·期 8
·2101556
·
IF 4.122
Yu Wu,Aiping Lin,Jidi Zhang,Danjiao Zhao,Xiaojing Bai,Cheng Lu,Shufen Wang,Lanlan Fan,Lei Cao,Sida Liu,Feng Gu
2D MXene has attracted tremendous attention for developing high-performance energy storage devices regarding its good metallicity and relatively large accessible surface area. However, the electrochemical performance of MXene-related devices was hindered due to the pronounced self-stacking characteristic of MXene. Herein, a convenient aerosol jet printing (AJP) process is developed for the synthesis of MXene nanospheres with crumpled and eccentric structures by modulating the migration and assembly of MXene nanosheets on heat substrate. The existing temperature gradient between the apex and the edge of the deposited droplet causes thermocapillary flows carrying MXene nanosheets toward the edge and the MXene nanosheets are further shaped and assembled along the droplet surface during the solvent evaporation. Interdigital microelectrodes of crumpled MXene nanospheres are tentatively developed for electrochemical performance characterization, a competitive areal capacitance performance is demonstrated in comparison with other MXene-based devices. Importantly, this work highlights the great potential of the AJP technique for developing functional devices with fascinating hierarchical features as well as further extending applications in miniaturized and intelligent microelectronics.
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Xuan Jian,Mi-mi Zhang,Rui Li,Jian-xin Liu,Feng Fu,Zhen-hai Liang
The grand challenge in the development of Platinum (Pt)-based electrocatalytic hydrogen evolution reaction (HER) catalyst is their high-cost, low utilization and less controllable, limiting its wide application in hydrogen economy field. Therefore, exploring a new technique to construct catalyst require minimal amounts of Pt and maintain high performance is very necessary. Herein, we first designed a high-efficiency electrocatalyst based ultralow Pt loading (1.27 μg cm ‒2 ) on two-dimensional Ti 3 C 2 T x MXene support by controlling Cu monolayer underpotential deposition (UPD), and then galvanic replacement Cu monolayer with Pt. Due to the energetically favorable metal-support interaction, in acidic media the as-prepared Pt-Ti 3 C 2 T x MXene catalyst achieved a current density of 10 mA cm ‒2 at low overpotential of 30 mV. Furthermore, the Pt-Ti 3 C 2 T x MXene catalyst also exhibited a superior HER activity with high turnover frequency (TOF) of 41.8 s ‒1 and mass activity of 41.3 A mg Pt –1 , which were about nearly 47 times those of commercial 20 wt% Pt/C catalyst, respectively. This work demonstrate the potential of Ti 3 C 2 T x MXene as support for design of ultralow Pt loading electrocatalyst through Cu UPD-Galvanic replacement method that can be used for a wide range of catalytic reaction .
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Linshan Zhang,Deshun Huang,Pengxiang Zhao,Guozong Yue,Luming Yang,Weihua Dan
As a novel two-dimensional material, MXene is considered as a good candidate for pollutants removal. In this report, Ti 3 C 2 T x MXene nanosheets suspension was synthesized by intercalating and delaminating of the multi-layered Ti 3 C 2 T x using tetramethylammonium hydroxide (TMAOH). Given to its unique properties, it showed excellent performances on cationic methylene blue (MB) adsorption. The maximum adsorption capacity was figured to be 1026 mg/g at 318 K, which is much higher than most absorbents reported in previous studies. Mechanistic studies revealed that electrostatic attraction and ion exchange are the main factors for MB removal. Additionally, the Ti 3 C 2 T x MXene nanosheets composite membrane was prepared and applied to the MB removal through filtration, which showed good removal efficiency and dye water flux. The current Ti 3 C 2 T x MXene suspension should be a promising absorbent for MB removal from water.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Yuhang Wang,Guangxin Fan,Dafeng Zhang,Yanping Fan,Baozhong Liu
The enhanced effect of metal catalysts is crucial to achieve advanced performance of hydrogen storage system. Rational design of catalysts with superior catalytic activity is significant to regulate the re-/hydrogenation kinetics of MgH 2 . Herein, Ti 3 C 2 -supported praseodymium(III) fluoride (PrF 3 ) nanoparticles (PrF 3 /Ti 3 C 2 ) composite was prepared by hydrothermal method , which exhibited superior catalytic activity toward hydrogen storage of MgH 2 . The onset temperature of dehydrogenation was reduced to 180 °C after adding 5 wt% PrF 3 /Ti 3 C 2 , corresponding to a reduction of 107 °C compared with pristine MgH 2 . About 7.0 wt% hydrogen was rapidly desorbed within 3 min at 260 °C and 6.6 wt% hydrogen was absorbed within 36 s at 200 °C for MgH 2 -5 wt% PrF 3 /Ti 3 C 2 . Moreover, MgH 2 -5 wt% PrF 3 /Ti 3 C 2 exhibited an excellent capacity retention of 92.5% even after 10 cycles. Experimental results reveal that the electron transfer among Ti-species (Ti 0 , Ti 2+ , and Ti 3+ ) occurred due to the striking enhanced effect of PrF 3 on Ti 3 C 2 MXene during the reaction process, and the synergistic action between Ti-species and PrF 3 are responsible for the markedly enhanced hydrogen storage properties of MgH 2 . This study is helpful to the design and optimization of hydrogen storage materials for mobile application.
✓ 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）