APPLIED CATALYSIS B-ENVIRONMENTAL
·
2022
·
IF 24.319
Xin Guo,Hao Zhang,Yiyuan Yao,Chengming Xiao,Xin Yan,Ke Chen,Junwen Qi,Yujun Zhou,Zhigao Zhu,Xiuyun Sun,Jiansheng Li
Integrating the merits of the substrate and active sites with the water matrix is of significant importance to design novel catalysts for peroxymonosulfate (PMS)-based advanced oxidation processes. A sandwich-like heterostructure catalyst (MCoO@Co-N-C) were fabricated via anchoring zero-dimensional metal-organic frameworks (MOFs)-derived CoO nanoparticles on two-dimensional Ti 3 C 2 T x MXene nanosheets . Benefiting from the distinctive structure, the resultant catalysts achieved excellent decontamination performance under high salinity conditions (200 mM). Nearly 100% efficiency of bisphenol A (BPA) was degraded within 10 min only using 0.05 g L −1 catalyst and 0.1 g L −1 PMS, with exceptional high turnover frequency (TOF) value (8.64 min −1 ) which was 22.5 times higher than that of MOFs derived catalysts without MXene. A mediated-electron transfer mechanism is found to be conducive to the oxidation of BPA. This work provides a new approach to novel catalysts designed for removing trace organic contaminants (TrOCs) in saline water.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhengyu Yao,Zhongyuan Yuan,Mengdi Xue,Chaowei Li,Wei Zhang,Yijun Fu,Dawei Li
A dual-mode hydrogel integrates passive body-heat and active photothermal harvesting. • Electrospun CA fibers enable interfacial interlocking (250% strain, >95% retention). • High Seebeck coefficient of 1.8 mV K −1 from SO 4 2− /SO 3 2− thermogalvanic effect • Photothermal effect generates ΔT of 13.8 K under one-sun irradiation to boost output. • Continuous capacitor charging and LED operation under both body heat and solar light Continuous micropower is critical for next-generation wearable electronics. However, ionic thermoelectric hydrogels relying solely on body heat are limited by the inherently small skin-air temperature gradient (ΔT), leading to inadequate and fluctuating output. We propose a dual-mode harvesting strategy employing a hierarchical MXene/cellulose acetate (CA)-polyvinyl alcohol (PVA)/PEDOT:PSS (PSPDN) hydrogel thermocell. This 3D porous hydrogel exhibits high stretchability (250%) and sustained water retention, ensuring uninterrupted thermogalvanic ion transport. In passive mode, it harvests body heat to generate a stable baseline voltage, maintaining >95% output after 100 deformation cycles. Under illumination, the MXene/CA membrane acts as a broadband solar absorber to activate an active enhancement mode. Photothermal amplification of the thermogalvanic output enlarges the localized ΔT to 13.8 K under one-sun irradiation, boosting the estimated output power by more than an order of magnitude over the body-heat baseline and yielding a Seebeck coefficient of ~1.8 mV K −1 . With stable low-voltage output, the device charges capacitors and supports LED demonstrations of its thermovoltage response under various environmental triggers. This dual-mode concept—the passive body-heat mode guarantees a weather-independent baseline while the active mode adds solar gain whenever irradiation is available—offers a practical route toward uninterrupted self-powered wearable systems. A dual-mode MXene/CA-PSPDN hydrogel enables complementary body-heat and photothermal energy harvesting by combining passive body-heat thermoelectric generation with active solar-driven photothermal amplification. An electrospun nanofiber interlocking interface ensures 250% stretchability and 95% voltage retention after 100 cycles. The thermocell achieves a high Seebeck coefficient of 1.8 mV K −1 , with ΔT reaching 13.8 K under one-sun irradiation, delivering continuous output for self-powered wearables. Download: Download high-res image (237KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2023
·Vol. 12
·期 1
·276-285
·
IF 6.4
Binzhe Tan,Dongya Guo,Zhirong Tao,Zhibo Chen,Zhijian Lv,Guozhang Wu,Yu Lin
Two-dimensional MXene materials show great potential for electromagnetic interference (EMI) shielding application because of their superior electrical conductivity. However, the susceptibility to oxidation and the mechanical brittleness of MXenes greatly limit their extensive application. Herein, an ultrathin flexible polyimide (PI)/Ti3C2TX composite film with a nacre-like lamellar structure is successfully prepared using a simple vacuum filtration and thermal imidization process. Owing to the addition of PI, the composite film exhibits excellent mechanical properties with a tensile strength of 114.9 MPa and a fracture strain of 3.0%. Moreover, the nacre-like lamellar structure is conducive to multiple internal reflections, giving rise to the absorption of electromagnetic waves. The PI/Ti3C2TX composite film exhibits an outstanding EMI shielding effectiveness of 37 dB in the X-band range with an ultrathin thickness of only 15 μm. Furthermore, PI serves as an antioxidation coating, and its EMI shielding performance is maintained even when the composite film is exposed to various harsh environments. Therefore, the resulting composite film exhibits excellent EMI shielding stability and durability, which enables the potential application of high-performance EMI shielding materials against harsh environments.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Yao Zhang,Jiefang Feng,Juan Yang,Feiyang Chen,Yunjia Liu,Xiaoxian Hu,Lijin Huang,Nianjun Yang
Detecting trace nitrofurantoin (NFT) residues in food and water is critical for public health, yet practical applications are constrained by the scarcity of highly sensitive sensing materials. Herein, an MXene/amino-functionalized carbon nanotubes (NH 2 -CNTs) hybrid composite was fabricated via a facile electrostatic self-assembly strategy for NFT sensing. In this design, the positively charged NH 2 -CNTs spontaneously assemble with negatively charged MXene nanosheets through strong electrostatic interactions, serving simultaneously as interlayer spacers to effectively prevent MXene restacking and as highly conductive bridges with excellent electrocatalytic activity. This synergistic assembly yields a three-dimensional interconnected conductive network, which endows the composite with significantly enhanced electron-transfer kinetics, enlarged electrochemically active surface area, and superior electrocatalytic activity, thereby enabling pronounced signal amplification. Consequently, the optimized sensor with a mass ratio of 5:1 delivered excellent analytical performance toward NFT, with an ultrahigh sensitivity of 22.11 μA μM −1 cm −2 , a linear detection range of 0.05–15 μM, and a detection limit of 17 nM. Moreover, the sensor was successfully applied to the quantitative determination of NFT in milk, environmental water and honey samples, affording recoveries of 94.7–107.5%. These findings provide a facile strategy to overcome MXene restacking and highlight the promising potential of this sensing platform for food safety and environmental monitoring. Download: Download high-res image (148KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 34
·期 11
·2312654
·
IF 19
Henghan Dai,Jin Chang,Jia Yang,Huifang Wang,Jinyuan Zhou,Gengzhi Sun
High-performance fibrous materials urgently desired for fabricating energy storage devices to power wearable textile electronics are expected excellent mechanical properties, improved output capacitance, and rapid charge/discharge capability; nevertheless, their contradictory requirements in material design impose immense challenges. Inspired by the robust structure of higher plants that evolve over millions of years, herein, an interfacial engineering strategy is proposed for synergizing the mechanical strength and electrochemical performance of Ti 3 C 2 T X MXene fibers by selecting aramid (Kevlar) nanofibers and borate ions (B) as the enhancers. The intercalation of Kevlar nanofibers endows the nascent wet-spun MXene gel fibers with a high stretchable ratio through physical interaction (hydrogen bonds), greatly aligning the orientation of MXene nanosheets. B-cross-links introduce covalent bonds between MXene nanosheets, which together with hydrogen bonds significantly enhance fiber strength. More importantly, optimal ion transport kinetics is achieved by synergizing the inverse impacts of Kevlar nanofibers and B-cross-link on interlayer spacing, guaranteeing excellent electrochemical performances. Benefiting from their excellent mechanical, electrical, and electrochemical performances, borate (B)-cross-linked MXene/Kevlar fibers (MKB) are simultaneously adopted as fibrous electrodes and receiving antennae for asymmetric supercapacitors with wireless charging functions. The proposed strategy provides an avenue for designing high-performance functional fibers for future wearable applications.
✓ 已验证
产品关联
DOI
高影响因子
Acta Pharmaceutica Sinica B
·
2023
·
IF 14.5
Yani Xu,Lan Yang,Min Li,Haozhou Shu,Na Jia,Yunzhen Gao,Rongying Shi,Xiaojia Yang,Zhirong Zhang,Ling Zhang
Osteosarcoma is usually resistant to immunotherapy and, thus primarily relies on surgical resection and high-dosage chemotherapy. Unfortunately, less invasive or toxic therapies such as photothermal therapy (PTT) and chemodynamic therapy (CDT) generally failed to show satisfactory outcomes. Adequate multimodal therapies with proper safety profiles may provide better solutions for osteosarcoma. Herein, a simple nanocomposite that synergistically combines CDT, PTT, and chemotherapy for osteosarcoma treatment was fabricated. In this composite, small 2D NiFe-LDH flakes were processed into 3D hollow nanospheres via template methods to encapsulate 5-Fluorouracil (5-FU) with high loading capacity. The nanospheres were then adsorbed onto larger 2D Ti 3 C 2 MXene monolayers and finally shielded by bovine serum albumin (BSA) to form 5-FU@NiFe-LDH/Ti 3 C 2 /BSA nanoplatforms (5NiTiB). Both in vitro and in vivo data demonstrated that the 5-FU induced chemotherapy, NiFe-LDH driven chemodynamic effects, and MXene-based photothermal killing collectively exhibited a synergistic “all-in-one” anti-tumor effect. 5NiTiB improved tumor suppression rate from <5 % by 5-FU alone to ∼80.1 %. This nanotherapeutic platform achieved higher therapeutic efficacy with a lower agent dose, thereby minimizing side effects. Moreover, the composite is simple to produce, enabling the fine-tuning of dosages to suit different requirements. Thus, the platform is versatile and efficient, with potential for further development.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Jiaxuan Zhou,Lijuan Yang,Xiaoyin Cao,Yingjiao Ma,Hanxue Sun,Jiyan Li,Zhaoqi Zhu,Rui Jiao,Weidong Liang,An Li
The inevitable intermittency of solar illumination during the interfacial evaporation process can cause a reduction in the evaporation performance of solar evaporators. Here, we report the fabrication of a new solar-driven interfacial evaporator using MXene nanosheets as the photothermal layer, modifying them with conjugated microporous polymer hollow microspheres , and then compounding them with the phase change material , in this case, cetyl alcohol, to form a composite evaporator (CE) that can perform all-weather solar interfacial evaporation. By combining interfacial evaporation photothermal conversion with energy storage, the evaporator achieves an evaporation rate of 1.57 kg⋅m −2 ⋅h −1 at a light intensity of 1 kW⋅m −2 and 2.79 kg⋅m −2 ⋅h −1 at a light intensity of 2 kW⋅m −2 . In addition, the evaporator attains an excellent solar evaporation efficiency of over 91% in both cases and even in salt water. In addition, interestingly, our CE exhibits excellent continuous evaporation ability, e.g., the mass of evaporated water was increased by 0.36 kg⋅m −2 at a light intensity of 2 kW⋅m −2 compared to the cavity evaporator without the phase change material (PCM) when solar light was turned off. These results could be attributed to the fact that the energy released by the incorporated phase change material allows the evaporator to maintain stable evaporation under conditions of insufficient or intermittent solar irradiation, potentially providing a new opportunity for addressing the intermittent problem of evaporation at the solar interface due to unstable light intensity, thus showing great potential for practical continuous desalination .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry B
·
2023
·Vol. 11
·期 44
·10678-10691
·
IF 7
Guanghui Liu,Hongfa Wang,Chunyan Xu,Qunling Fang,Hailong Wang,Yunqi Xu,Min Sang,Shouhu Xuan,Lingyun Hao
With the rapid development of social industrialization, environmental problems seriously threaten people's health, especially water pollution. Therefore, there is an urgent need to construct a multifunctional nanoplatform for different scenarios. Two-dimensional MXene@AgAu@PDA nanosheets loaded with AgAu bimetallic nanocages have been prepared by a one-step method. First, the in situ generated MXene@Ag is used as an auxiliary template, and then HAuCl4 and dopamine are added for in situ redox-oxidizing polymerization reactions to obtain AgAu catalytic nanocages and the protective polydopamine (PDA) layer which can improve the stability and biocompatibility. MXene and PDA have excellent photothermal conversion ability while hollow AgAu nanocages have strong absorption in the near-infrared region and a local surface plasmonic resonance effect. In comparison to the catalytic reaction rates under dark and room temperature conditions, the catalytic kinetic rate of MXene@AgAu@PDA nanosheets under near-infrared irradiation increases from 0.13 to 0.69 min−1 mg−1. Density functional theory (DFT) is used to study the electron transfer behavior between AgAu nanocages and MXene nanosheets, and the mechanism of the enhanced catalytic reaction rate is analyzed. Besides, due to its Ag ions and photothermal coupling antibacterial properties, 40 μg mL−1 MXene@AgAu@PDA nanosheets inactivates nearly all E. coli and S. aureus after irradiation with near-infrared light for 6 min.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2023
·
IF 5.9
Jingxuan Cui,Jiao Wu,Le Mi,Aihu Feng,Yang Yu,Yun Yu
Ti3C2Tx MXene is expected to achieve infrared stealth by regulating its thermal radiation properties. In this study, Ti3C2Tx MXene films were prepared by using the acid etching method, and the effects of etchants (HCl/LiF, HF, and NH4HF2) on the film structure as well as the infrared radiation properties were systematically studied. The intercalation process used to exfoliate single/few-layer nanosheets was found to accelerate the oxidation and increase the resistance of MXene. The mechanism behind these effects on emissivity was explained in detail. Based on these findings, the most suitable preparation process for low-emissivity MXene was selected. The resulting Ti3C2Tx film (HL-f), which used HCl/LiF as an etchant for Ti3AlC2, has a high conductivity of 3119 S/cm that reflects numerous infrared waves reaching its surface while exhibiting a low emissivity of only 0.13. The colloidal solution (HL-s) made with HCl/LiF as an etchant was sprayed directly onto a PI substrate as a coating with infrared stealth capabilities, thermal stability, and Joule heating properties, reducing the emissivity from 0.87 to 0.14. This work provides guidance for improving MXene preparation methods and their applications in related fields while demonstrating the great potential of HCl/LiF-etched Ti3C2Tx MXene as a low-emissivity infrared stealth material.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2023
·Vol. 148
·期 22
·12467-12479
·
IF 4.4
Pan Weihao,Zhou Qiankun,Yang Wenjie,Nie Shibin,Xu Liangji,Wei Chunxiang,Lu Hongdian,Yang Wei,Yuen Anthony Chun Yin
Acrylonitrile–butadiene–styrene (ABS) composites with less smoke and toxicity hazards (e.g., HCN and NO x ) emission are highly demanded. As a common smoke suppressant, zinc hydroxystannate (ZHS) has been used in various polymers, while the high content, special cube shape and agglomeration restrict its development. To solve these problems, MXene (Ti 3 C 2 T x ) nanosheets were utilized to wrap ZHS nanoparticles (Ti 3 C 2 T x -PDA-ZHS) to improve the dispersion and compatibility of ZHS nanoparticles in ABS, in which polydopamine (PDA) was used as a binder to combine ZHS and MXene nanosheets. Accordingly, the prepared ABS/Ti 3 C 2 T x -PDA-ZHS nanocomposites showed the enhanced properties: (1) ABS/Ti 3 C 2 T x -PDA-ZHS exhibited a 69.7% increase in elongation at break compared to ABS/ZHS at a 2 mass% loading. (2) Owing to the synergistic effect of MXene and ZHS, Ti 3 C 2 T x -PDA-ZHS provided excellent inhibition on heat and toxic gas release during combustion (a reduction of approximately 17.5%, 34.5%, 19.1% and 20.0% of peak heat release rate, HCN, NO and NO 2 , respectively). (3) The smoke density decreased from 525.6 for neat ABS to 423.2 for ABS/Ti 3 C 2 T x -PDA-ZHS with a reduction of 19.5%, and the light transmittance of ABS/Ti 3 C 2 T x -PDA-ZHS (37.7%) was much higher than that of pure ABS (21.2%) at 240 s. Therefore, Ti 3 C 2 T x -PDA-ZHS showed a great enhancement in flammability, toxicity and smoke release reduction of ABS, potentially overcoming the weakness with improved diversity in future applications. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Yulian Yang,Qiuyi Liu,Yuemeng Zou,Meng Tian,Luchun Wang,Lingling Li,Mingyue Wang,Yongqing Tao,Junji Wang,Zeng Wen,Famin Ke,Dandan Wang,Die Gao
Widespread use of fluoroquinolones (FQs) leads to its continuous excretion and release into the environment, resulting in the accumulation in water, animal-derived food etc., and posing a threat to environment and humans. Thus, the development of highly efficient FQs removal methods is of great significance. Herein, a composite (COF@MXene) was manufactured using a covalent assembly synthesis strategy by connecting covalent organic frameworks (COF) and NH 2 -MXene through a Schiff-base reaction. COF@MXene had the advantages of both COF and MXene, not only had good crystallinity , thermal stability and rich functional group properties, but also had high protein exclusion ability (Exclusion efficiency>97%) and good adsorption capacities for FQs including ciprofloxacin (CIP), lomefloxacin (LOM), moxifloxacin (MOX), gatifloxacin (GAT) and levofloxacin (LEV). The maximal adsorption capacities for them ranged from 54.63 to 147.91 mg·g −1 , which were higher than those of COF (15.99–64.06 mg·g −1 ) and MXene (27.58–33.92 mg·g −1 ). The adsorption experimental data of adsorption isotherm and kinetics separately followed the Langmuir and pseudo-second-order models. Through density functional theory (DFT), Forcite calculation, UV-Vis and XPS analyses, pore size selectivity , electrostatic and hydrogen bond interactions were determined as the main driving forces for FQs adsorption. Finally, COF@MXene coupled with HPLC-DAD was employed for the analysis of FQs from water, egg and drug samples, and the recoveries were satisfactory. This work reported a covalent assembly synthesis strategy for the preparation of COF@MXene composite for FQs removal. This approach may establish a viable route for gentle fabrication of COF and MXene based composites for various applications.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Shang-yu Chen,Yu-fan Deng,Ting Huang,Nan Zhang,Yong Wang
As an eco-friendly material, the wide application of polylactide (PLA) in wastewater treatment is favorable for eliminating the possible second-pollution induced by the common membrane materials. However, the application of PLA is also greatly restricted by the hydrophobicity and inert surface of PLA-based materials. In this work, the electrospun PLA fiber film with stereocomplex crystallites (SC-PLA) was prepared through electrospinning, then the successive decorations of self-polymerization of polydopamine (PDA) and PDA-assisted MXene deposition were carried out. The physicochemical performances such as wettability, mechanical properties, and photothermal conversion ability were intensively researched. Then, the oil/water separation ability and the organic pollutants removal effect of the composite membranes were systematically researched. The results show that the composite membrane is amphiphilic, which results in the membrane exhibiting high fluxes and excellent oil/water separation performance in the separation process of different types of emulsions, and oil/water separation efficiency can be further enhanced under light irradiation. Specifically, the maximum adsorption capacity of the composite membrane for methylene blue (MB) reached 434.8 mg/g, and the composite membrane can also simultaneously remove oil and MB from the emulsified solution in the one-time separation process. This work demonstrates that the PLA-based composite membranes have potential application in sewage purification and can be the alternative for the next generation membrane separation material.
✓ 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）