Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 38
·20651-20664
·
IF 11.9
Fangfang Su,Zhongjie He,Jinliang Xie,Jing Zhang,Weirui Zhang,Yangyang Xin,Aibo Zhang,Dongdong Yao,Yaping Zheng
In recent years, solar energy has gained significant attention due to its clean, abundant, and renewable characteristics. Among various solar energy applications, solar thermal conversion has emerged as one of the most promising and straightforward methods. As a new type of photothermal material, MXene has been widely studied, but its low layer roughness and high reflection coefficient result in weak light–thermal conversion performance. In this work, we prepared nanofluids (hereafter named “Ti3C2Tx/FCuS-IL” and “Ti3C2Tx/HCuS-IL”) for light–thermal conversion by utilizing electrostatic interactions between polydopamine modified Ti3C2Tx and CuS composite photothermal materials (Ti3C2Tx/FCuS and Ti3C2Tx/HCuS) with [EBIM]NTf2. The introduction of floral and hollow CuS can effectively increase the surface roughness of Ti3C2Tx, thereby increasing the light receiving area of the material. Research has demonstrated that ionic liquids (ILs) can serve as effective heat collecting working fluids, expanding the liquid path range of nanofluids and providing them with enhanced thermal stability. Furthermore, ILs exhibit lower viscosity, which is advantageous for their efficient pumping in various industrial applications. Research on the light absorption performance and light–thermal conversion performance has found that the Ti3C2Tx/FCuS-IL and Ti3C2Tx/HCuS-IL nanofluids could achieve complete spectral absorption at lower mass fractions of 0.08% and 0.10%, respectively, and exhibited a faster heat transfer rate. The equilibrium temperature (Teq) that Ti3C2Tx/FCuS-IL (0.08%) could achieve was 80.2 °C at 1 sun, with a light–thermal conversion efficiency (ηLTC) of up to 94% and good cycling stability. Additionally, the evaporation performance of Ti3C2Tx/FCuS-IL (0.12%) and Ti3C2Tx/HCuS-IL (0.12%) had been improved by 148.6% and 134.3% compared to pure water at 1 sun. The outstanding light–thermal conversion performance of these nanofluids holds great potential advantages in various applications, such as seawater desalination, cancer treatment, hydrophobic anti-icing, and more.
研究领域:
材料科学
·
能源科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Energy Technology
·
2025
·
IF 3.6
Ming Yan,Haoyu Chen,Yu Zhu,Yuxiao Deng,Zhuanlong Yan,Ziyi Lu,Yanlin Chen
In this study, NH 2 –SiO 2 @Ti 3 C 2 T x core–shell microspheres with different Ti 3 C 2 T x contents are prepared by coating Ti 3 C 2 T x nanosheets on the surfaces of SiO 2 microspheres using an electrostatic self-assembly method. The structures, elemental compositions, and microscopic morphologies of NH 2 –SiO 2 @Ti 3 C 2 T x microspheres are investigated by X-Ray diffraction, Fourier-transform infrared spectroscopy, field-emission scanning electron microscopy, and X-Ray photoelectron spectroscopy. The results show that Ti 3 C 2 T x nanosheets are uniformly coated on the surfaces of the SiO 2 microspheres, and the surfaces of the SiO 2 microspheres are modified by NH 2 . The maximum specific surface area of NH 2 –SiO 2 @Ti 3 C 2 T x composite doped with 15 wt% Ti 3 C 2 T x is 29.937 m 2 g −1 , with an average pore size of 0.11848 cm 3 g −1 . The electrochemical performance test results show that after 100 cycles at a C rate of 0.2C, the specific capacity of the NH 2 –SiO 2 @Ti 3 C 2 T x anode material increases by 270.1% compared to that of SiO 2 , reaching 142.5 mAh g −1 . Compared with SiO 2 , the NH 2 –SiO 2 @Ti 3 C 2 T x materials have higher electrical conductivities and Li ion diffusion rates, thereby improving their rate performances, and the discharge specific capacities and cycling stability are superior to those of the SiO 2 anode material.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Xiaoyue Jin,Shaowei Wang,Chenyu Sang,Yiying Yue,Xinwu Xu,Changtong Mei,Huining Xiao,Zhichao Lou,Jingquan Han
Nanocellulose-mediated MXene composites have attracted widespread attention in the fields of sustainable energy, wearable sensors, and electromagnetic interference (EMI) shielding. However, the effects of different nanocelluloses on the multifunctional properties of nanocellulose/Ti3C2Tx composites still need further exploration. Herein, we use three types of nanocelluloses, including bacterial cellulose (BC), cellulose nanocrystals (CNCs), and 2,2,6,6-tetramethylpiperidin-1-yloxy (TEMPO)-oxidized cellulose nanofibers (TOCNs), as intercalation to link Ti3C2Tx nanosheets via a self-assembly process, improving the dispersibility, film-forming ability, mechanical properties, and multifunctional performances of nanocelluloses/Ti3C2Tx hybrids through electrostatic forces and hydrogen bonding. The optimized ultrathin (∼40 μm) TOCN/Ti3C2Tx film integrates excellent tensile strength (∼98.89 MPa), long-term stability (during deformation and water erosion), favorable photoelectric response (photosensitivity up to 2620%), and temperature response (reaching 163 °C in only 12 s). Laser-cutting patterned TOCN/Ti3C2Tx films are assembled into flexible multifunctional electronics, exhibiting splendid photoresponse performances and tunable electromagnetic energy shielding capability (>96.4%) related to the variation of water content at the film–gel electrolyte interface. Multifunctional patterned devices based on TOCN/Ti3C2Tx composite films provide a novel pathway to rationally design wearable EMI devices with photoelectric response and photothermal conversion.
研究领域:
材料科学
·
可持续能源
·
传感器技术
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2022
·
IF 9.221
Xiangrui Bu,Fa Ma,Qiang Wu,Haiyang Wu,Yubin Yuan,Long Hu,Chuanyu Han,Xiaoli Wang,Weihua Liu,Xin Li
Volatile organic compounds (VOCs) detection in ultra-low concentrations is highly demanded in industry and daily life. Ethanol is one of the most encountered VOCs. Through calcining the precursor of metal-organic frameworks (MOFs), which are in situ grown on 2D Ti 3 C 2 T x sheets, Co 3 O 4 /Ti 3 C 2 T x nanocomposites with the mesoporous structure were synthesized for ethanol sensing. The results showed that the Co 3 O 4 /Ti 3 C 2 T x sensor has an ultra-high response ( (190 towards 50 ppm ethanol), fast response/recovery speed (50 s/45 s to 50 ppm ethanol), a low detection limit (<1 ppm), ideal selectivity and long-term stability. Compared to the pure Co 3 O 4 and Ti 3 C 2 T x sensors, the Co 3 O 4 /Ti 3 C 2 T x nanocomposites sensor significantly improves ethanol-sensing performance. Within the nanocomposites, the 2D Ti 3 C 2 T x nanosheet acts as a favorable platform for the uniform nucleation and growth of Co 3 O 4 , while the mesoporous Co 3 O 4 can provide more adsorption sites for gas sensing. In addition, the formation of hybrid heterojunction is also an essential factor for enhanced sensing behaviors. This work provides a new avenue to develop nanocomposites based on metal oxide and 2D materials for VOCs sensing.
研究领域:
材料科学
·
传感器技术
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2021
·
IF 5.909
Fang-Di Wu,Jyh-Cherng Chen,Jia-Peng Hu
A ternary composite photocatalyst with high catalytic activity (TiO 2 /Ti 3 C 2 T x /AgI) was synthesized using the simple solvothermal and coprecipitation methods. The structure, morphology, photoelectric properties, and photocatalytic activity of the prepared materials were studied using various characterization techniques. The composite catalysts TiO 2 /Ti 3 C 2 T x /AgI with different proportions of TiO 2 /Ti 3 C 2 T x to AgI of 10%, 20%, 50%, 70%, and 90% were prepared by varying the amounts of AgNO 3 and KI. Compared to AgI and TiO 2 /Ti 3 C 2 T x , TiO 2 /Ti 3 C 2 T x /AgI demonstrated a superior photocatalytic degradation activity for tetracycline hydrochloride (TCH) under simulated sunlight. The degradation rate of TCH with 70% TiO 2 /Ti 3 C 2 T x /AgI composite photocatalyst reached 97%. The photoluminescence (PL) emission spectra showed that the recombination of photogenerated electrons of 70% TiO 2 /Ti 3 C 2 T x /AgI was effectively inhibited after the formation of AgI, TiO 2 , and Ti 3 C 2 T x heterojunctions . The electrochemical impedance spectroscopy (EIS) indicated that a rapid interfacial charge transfer of the 70% TiO 2 /Ti 3 C 2 T x /AgI composite to the electron acceptors (Ti 3 C 2 T x ). Ti 3 C 2 T x had high conductivity and can effectively accelerate the transfer and separation of photogenerated carriers as a charge medium. Therefore, the enhancement of photocatalytic activity of TiO 2 /Ti 3 C 2 T x /AgI can be attributed to the Z-scheme heterojunction with non-metal Ti 3 C 2 T x as the solid medium. In addition, the trapping agent experiment showed that superoxide radicals, singlet oxygen, and holes were the main active substances in the photocatalytic degradation of TCH by the TiO 2 /Ti 3 C 2 T x /AgI composite.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Zhiyi Wu,Jiahui Shen,Zimu Li,Shuang Liu,Yuxuan Zhou,Kai Feng,Binbin Zhang,Shiqi Zhao,Di Xue,Jiari He,Kewei Yu,Jinpan Zhang,Graham Dawson,Qingfeng Zhang,Lizhen Huang,Chaoran Li,Xingda An,Lifeng Chi,Xiaohong Zhang,Le He
The ever-growing interest in MXenes has been driven by their distinct electrical, thermal, mechanical, and optical properties. In this context, further revealing their physicochemical attributes remains the key frontier of MXene materials. Herein, we report the anisotropic localized surface plasmon resonance (LSPR) features in Ti3C2Tx MXene as well as site-selective photocatalysis enabled by the photophysical anisotropy. Both experimental and theoretical studies provide direct evidence of the occurrence of transverse and longitudinal dipolar plasmon resonance modes, respectively, driven by in-plane and out-of-plane vibrations of the two-dimensional (2D) MXene nanoflakes. Wavelength-controlled excitation of the two LSPR modes is demonstrated to activate either the on-edge or the in-plane active sites for plasmonic charge carrier-induced site-selective catalysis. Our findings uncover the presence as well as the mechanism of the anisotropic plasmon resonance in nonmetallic 2D nanomaterials and provide intriguing design principles for next-generation plasmonic nanocatalysts.
研究领域:
材料科学
·
物理化学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Fei Hu,Jinhe Wei,Xiong Shen,Lin Chen,Zhongming Wang,Xin Peng,Chenglong Lv,Qiuyun Ouyang
The Bi/Ti 3 C 2 T x composites were synthesized by a hydrothermal method . Then the Bi/Ti 3 C 2 T x powder was dispersed into methyl methacrylate (MMA) to fabricate the (Bi/Ti 3 C 2 T x ) 2–6 /polymethyl methacrylate (PMMA) organic glasses. The crystalline structure and phase of the Bi/Ti 3 C 2 T x were measured by the X-ray diffraction. The photoluminescence (PL) spectra and the electrochemical impedance spectra (EIS) of the Bi/Ti 3 C 2 T x were measured to prove the enhanced optical and electrical properties. The nonlinear optical (NLO) properties of the (Bi/Ti 3 C 2 T x ) 2–6 /PMMA organic glasses were investigated by the Z-scan technique. The (Bi/Ti 3 C 2 T x ) 2–6 /PMMA organic glasses exhibit the reverse saturable absorption (RSA) and self-defocusing effects. Compared to the (Bi) 2 /PMMA and (Ti 3 C 2 T x ) 2 /PMMA organic glasses, the (Bi/Ti 3 C 2 T x ) 2–6 /PMMA organic glasses exhibit the enhanced NLO properties. Among three different amount Bi/Ti 3 C 2 T x /PMMA organic glasses, (Bi/Ti 3 C 2 T x ) 4 /PMMA organic glass exhibits the strongest RSA and self-defocusing effects with β eff = (6.34 ± 1.90)× 10 2 cm·GW −1 and γ = (–3.52 ± 0.07)× 10 −4 cm 2 ·GW −1 . The enhanced RSA and self-defocusing effect of the (Bi/Ti 3 C 2 T x ) 2–6 /PMMA organic glasses make them exhibit the excellent optical limiting (OL) performance. In addition, the Bi/Ti 3 C 2 T x composites show excellent electrochemical performance as an electrode material for energy storage systems. The resultant Bi/Ti 3 C 2 T x electrode yields a high specific capacity of 68.5 mAh·g −1 at a current density of 1 A·g −1 , which is approximately 4.2 and 6.1 times than those of the Bi and Ti 3 C 2 T x electrodes, respectively. The experimental results exhibit the Bi/Ti 3 C 2 T x is highly promising for energy storage and OL devices.
研究领域:
材料科学
·
光学工程
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Hanning Zhang,Mingxi Ren,Wei Jiang,Jie Yao,Limei Pan,Jian Yang
Sodium-ion batteries (SIBs) have attracted much attention owing to their abundant resources, low cost, suitable energy density and low potential window. However, SIBs still suffer from poor charge transmission kinetics caused by large Na + radius. Therefore, anode materials are considered as the key to the development of high-performance SIBs. Herein, hierarchical Sb 2 S 3 @m-Ti 3 C 2 T x composites with Sb 2 S 3 content of 40–60% were in-situ synthesized by a simple wet chemical method , in which amorphous spherical Sb 2 S 3 particles with a size of 150–200 nm nucleate and grow uniformly on the surface of m-Ti 3 C 2 T x with the formation of Ti-S bond. m-Ti 3 C 2 T x , as a three-dimensional conductive skeleton, not only improved the electron and Na + transportation, but also significantly inhibited the agglomeration and grain growth of Sb 2 S 3 particles, promoted the electrolyte penetration, and effectively absorbed the volume expansion of Sb 2 S 3 during charging and discharging cycles. As a result, the optimized 50% Sb 2 S 3 @m-Ti 3 C 2 T x showed good rate ability and cycling performance, including a capacity of 156 mAh g −1 after 100 cycles at 0.1 A g −1 and 72 mAh g −1 after 1000 cycles at 2 A g −1 with only 0.37% attenuation per cycle. This work provided a simple and effective strategy for the design and construction of MXene-based hybrids as SIBs anode.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2023
·
IF 5.9
Fangwei Qi,Xiaosong Chen,Huixing Li,Gang Chen,Xinrui Luo,Shiyu Xiong,Shuping Peng,Cijun Shuai
Bismuth sulfide (Bi2S3) enabled us to transform light signals into electrical signals via the photoelectric effect, which exhibited tremendous prospects on constructing wireless electrical stimulation for accelerating nerve regeneration. However, too rapid recombination of photogenerated electron–hole pairs weakened its photocurrent. Herein, the Bi2S3/Ti3C2Tx heterojunction was synthesized by in situ growth of Bi2S3 nanoparticles on Ti3C2Tx nanosheets and then mixed with poly-l-lactic acid (PLLA) powder to fabricate the Bi2S3/Ti3C2Tx-PLLA conduit. At the heterojunction interfaces, Ti3C2Tx with a more positive Fermi energy level could form interfacial potential difference with Bi2S3 to promote electron–hole pair separation. Meanwhile, Ti3C2Tx with excellent conductivity could provide channels for photogenerated electron transmission, thus facilitating the generation of the photocurrent. Photoluminescence and electrochemical impedance spectroscopy analysis indicated that electron–hole pair separation and electron transfer were enhanced. As a consequence, under near-infrared light radiation, the output photocurrent of Bi2S3/Ti3C2Tx-PLLA was increased from 0.48 to 1.43 μA compared to that of Bi2S3-PLLA. The enhanced photocurrent effectively promoted the differentiation of rat pheochromocytoma (PC12) into functional neurons by upregulating extracellular Ca2+ influx. Therefore, the above results demonstrated that this work provided a new perspective for wireless electrical stimulated nerve regeneration.
研究领域:
材料科学
·
神经生物学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
RARE METALS
·
2025
·
IF 11
Li Tong hui,Ma Lin,Wang Li,Wang Hai bo,Li Bo,Han Meng yao,Li Diao feng,Bai Chun guang,Dong Ming dong,Shen Long hai,Ma Song,Qi Feng
The single-layer Ti 3 C 2 T x /MXene has become a special electromagnetic wave absorber near the terahertz band because of its abundant surface groups and excellent conductivity. However, the macro-preparation of single-layer Ti 3 C 2 T x /MXene shows significantly difficult to influence its application. The two-dimensional Ti 3 C 2 T x is easily prepared to have high production, but its weak absorption ability due to high surface conductivity also restricts its application. To realize the strong electromagnetic wave absorption of two-dimensional Ti 3 C 2 T x /MXene, a new strategy with magnetic FeNi nanoparticles decorating Ti 3 C 2 T x /MXene composites (FeNi-Ti 3 C 2 T x ) were proposed and the effective electromagnetic wave absorption features covering 170–220 GHz that means the absorption band width reach 50 GHz. With an absorber composite film thickness being only 0.6 mm, the absorptivity of the composite is enhanced with the increase of decorating FeNi nanoparticles and promote up to 75% when the FeNi nanoparticles loading content reaches 30 wt%. The improvement of absorption is attributed to the introduction of soft magnetic FeNi to adjust the high surface conductivity of MXene and improve the electromagnetic balance of the absorber. Graphical abstract
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2024
·
IF 5.9
Tiantian Lv,Jiarong Zhang,Long Yu,Ya’nan Zhao,Tianran Zhao,Yi’na Yang,Chunna Yu,Chang Zhao,Guangjian Xing
The contamination of wastewater by organic pollutants significantly impacts human health and the environment due to their carcinogenic nature and various adverse effects. To address this issue, this study offers a high-efficiency and low-cost biomass-based carbon aerogel adsorbent, which was prepared through the hydrothermal carbonization of loofah, followed by Ti 3 C 2 T X MXene impregnation. The aerogel features a porous three-dimensional network structure and a substantial specific surface area, facilitating broad-spectrum adsorption capabilities for various dyes and drugs. The aerogel achieved impressive adsorption capacities of 175.29 and 75.73 mg/g for cationic methylene blue and Rhodamine B dyes, and 106.33 and 93.29 mg/g for anionic methyl orange and Congo red dyes, as well as 86.25 mg/g for tetracycline hydrochloride, surpassing other reported biomass-based aerogels. Furthermore, it demonstrated effective decolorization ability for wastewater containing mixed dyes. Notably, it exhibited excellent recycling and regeneration properties, maintaining a high removal rate after multiple cycles of adsorption–desorption. The adsorption process of dye/drug by the aerogel followed Langmuir’s monomolecular layer adsorption model, exhibiting spontaneous, endothermic, and disorder-increasing behavior in alignment with the pseudo-second-order kinetic model. This study presents an efficient biomass-based aerogel for the removal of organic pollutants from wastewater.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Ankita Sinha,Kaixin Ma,Huimin Zhao
Present work reports preparation of colloidal single/few layer Ti 3 C 2 T x MXene flakes using minimally intensive layer delamination (MILD) method for rapid electroanalytical screening of carbamate pesticides . Lithium fluoride salt and hydrochloric acid (7.5 M LiF/9M HCl) was used to produce in-situ generated HF as etchant to remove Al successfully from Ti 3 AlC 2 MAX phase. Unlike the clay method (5 M LiF/6M HCl), this methodology simplified Ti 3 C 2 T x synthesis protocol resulting in Li + ions intercalated Ti 3 C 2 T x which was delaminated without further sonication . The delaminated Ti 3 C 2 T x flakes were found to be single/few layered sheets with mostly –OH and –O terminated surface groups. The characteristic 002 peak observed in X-ray diffraction (XRD) at 2θ = 6.4° with interplaner distance of 1.1137 nm suggested broadening of the peak attributed to the presence of Li + ions between Ti 3 C 2 T x flakes. Delaminated Ti 3 C 2 T x flakes were utilized as working electrode which demonstrated simultaneous and selective detection of carbamate pesticides methiocarb and diethofencarb by voltammetry . The oxidation peaks of the two pesticides were well separated by a potential difference of 0.35 V in 0.5 M H 2 SO 4 and DPV detection limits were calculated as 0.19 μg mL −1 and 0.46 μg mL −1 for methiocarb and diethofencarb respectively. Ti 3 C 2 T x flakes as electrochemical sensor exhibited long term stability and acceptable recoveries in real sample for environmental applications.
研究领域:
材料科学
·
环境科学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）