CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Xin Jin,Wenshu Zhang,Siyang Liu,Tianpeng Zhang,Zihui Song,Wenlong Shao,Runyue Mao,Man Yao,Xigao Jian,Fangyuan Hu
To improve sluggish reaction kinetics and solve the severe self-stacking of MXene-based anodes for sodium ion batteries (SIBs), a novel highly stable sandwich-like structure with tunable interspace supported by dense N -rich polymer hydrogen-bonding network is synthesized for improving the pseudo-capacitance of Ti 3 C 2 T x MXene. The interconnected MXene-based sandwich structure can establish the stable conductive framework, abundant active sites and tunable interspace that provide channels for rapid Na + storage. Besides, the dense polymer hydrogen-bonding network can effectively prevent interlayer restacking for ultra-stable Na + storage. After modification, the N contents of Ti 3 C 2 T x MXene are increased to 21.63 at %. N -rich polymer network not only provides extra active sites for pseudo-capacitance Na + storage, but also accelerates Na + transport and charge transfer. As the anode for half-cell of SIBs, it shows excellent cycling performance of 148.4 mAh g −1 after 3000 cycles at 500 mA g −1 with capacity retention of 102.4 % and 123.4 mAh g −1 after 5000 cycles at 1000 mA g −1 . The performance of full-cell based on the optimized composite anode and Na 3 V 2 (PO 4 ) 3 (NVP) cathode is superior to other MXene-based full-cell of SIBs. The novel sandwich-like structure delivers a perspective for enhancing the stability and achieving fast Na + diffusion of layer structure by polymer hydrogen-bonding network.
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高影响因子
PEST MANAGEMENT SCIENCE
·
2021
·Vol. 77
·期 11
·4960-4970
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IF 4.845
Wenneng Wu,Minghui Wan,Qiang Fei,Yu Tian,Saijie Song,He Shen,Jian Shen
BACKGROUND Stimuli-responsive pesticide controlled release system provides a new strategy for the development of high-efficiency pesticides formulation. RESULTS In this article, we report a novel polydopamine surface modified MXene-Ti 3 C 2 T x nanocarrier for pesticide delivery and plant protection. Polydopamine modified Ti 3 C 2 T x (PDA@Ti 3 C 2 T x ) nanocarrier was prepared by biomimetic self-polymerization of dopamine on the surface of Ti 3 C 2 T x . A typical pesticide, emamectin benzoate (EB), was loaded on PDA@Ti 3 C 2 T x through physisorption process, with a high pesticide loading rate of 45.37%. PDA@Ti 3 C 2 T x exhibited excellent photothermal conversion effect ( η = 34.5%). Under the irradiation of near-infrared (NIR) laser, EB would sustained release from PDA@Ti 3 C 2 T x nanocarrier to surrounding medium. Compared with free EB, EB@PDA@Ti 3 C 2 T x exhibited prolonged persistence period, which can keep antipest activity at 14 days post spraying. In addition, PDA@Ti 3 C 2 T x nanocarrier and EB@PDA@Ti 3 C 2 T x nanoformulation are of good safety, showing no side effect to the seed germination and seedling growth. CONCLUSION This research developed a novel nanocarrier for water-insoluble pesticide delivery, realizing NIR-responsive controlled release and sustained antipest activity.
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PubMed
高影响因子
ENERGY & FUELS
·
2021
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IF 3.605
Xianjie Liu,Fankai Lin,Xiaoguang Zhang,Mingyong Liu,Zhenhua Sun,Liangpei Zhang,Xin Min,Ruiyu Mi,Zhaohui Huang
The application of phase-change materials (PCMs) for solar energy utilization and thermal energy storage is limited by their low thermal conductivity, undesirable solar-thermal conversion efficiency, and poor shape stability. Here, the novel paraffin/Ti3C2Tx@gelatin (PA/T@G) composite PCMs were successfully obtained by encapsulating paraffin (PA) into gelatin aerogels modified by Ti3C2Tx nanosheets. Three-dimensional (3D) porous gelatin aerogel acted as a favorable supporting material for PA with large enthalpy, while the Ti3C2Tx nanosheets contributed to enhancing the thermal conductivity and converting solar energy into thermal energy by trapping photons and heating molecules. The results exhibited that the composite PCMs had high load rates (96.3–97.7%) and large melting enthalpies (184.7–199.9 J/g). The thermal conductivity of PA/T-30@G was 0.919 W/(m·K), which reached up to 3.48 times that of PA, and the solar-thermal conversion efficiency of the composite PCMs was greatly improved via the introduction of Ti3C2Tx nanosheets. Notably, the composite PCMs with good shape and thermal stability is a promising material for solar-thermal energy storage applications.
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高影响因子
POLYMER
·
2023
·
IF 4.6
Haowen Sun,Qiuru Bao,Gang Chen,Shulong Wu,Yuan Liu,Qi Wang
With the development of microelectronics and flexible wearable electronic devices, poly(vinyl alcohol) (PVA) based thermal interface materials (TIMs) have received much attention. However, poor heat dissipation and high flammability have emerged as the key issues that restrict their application. In this work, the directional alignment of phytic acid (PA) modified boron nitride nanosheets (BNNS) and Ti 3 C 2 T x MXene in PVA matrix was achieved by ice-templated assembly, which simultaneously enhanced the flame retardancy and thermal conductivity of PVA composite films (PVA/BT x ). Owing to the synergistic effect between oriented BNNS and Ti 3 C 2 T x MXene on forming the thermally conductive network within PVA matrix, the in-plane thermal conductivity of PVA/BT x -30 composite film was increased to 8.54 W m −1 K −1 , much higher than that of PVA film (0.30 W m −1 K −1 ). Meanwhile, the heat dissipation process of PVA films applied as TIMs was simulated, which showed that PVA/BT x -30 films exhibited excellent thermal conduction and significantly decreased the operation temperature of electronic devices. Additionally, the peak heat release rate (PHRR) and total heat release (THR) of PVA/BT x -30 films were reduced by 60.3% and 62.0%, respectively, showing good flame retardancy. Importantly, the flexible Ti 3 C 2 T x nanosheets further enhanced the mechanical properties of PVA/BT x composite films. Therefore, this work provides an effective method for the preparation of high thermal conductivity and flame retardant composite materials, which has important potential applications in the microelectronics industry.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2023
·
IF 15.1
Songyang Qian,Zeyu Yuan,Guangshe Li,Dongdong Li,Junzhi Li,Wei Han
The room temperature sodium-sulfur battery has attracted researchers' attention due to its ultra-high energy storage capacity and extremely low cost, but its poor cycling performance and severe dissolution of sodium polysulfide hinder its practical application. Here, we report a stable MXene derived composite sulfur host material based on nickel hydroxide coated with carbon nano network, to achieve the adsorption and conversion of sodium polysulfides. Due to the physical constraints provided by the closed layered structure and the synergistic effect of MXene adsorption and Ni(OH) 2 catalytic activity, the shuttling effect is effectively suppressed. The ex-situ analysis of electrode after reaction shows that the composite material has strong adsorption on polysulfides. In addition, Ni(OH) 2 can also accelerate the reaction process from sulfur to sodium sulfide. Therefore, Ti 3 C 2 T x /Ni(OH) 2 /C/S composite cathode can provide extraordinary reversible capacity 1175.3 mAh/g at 0.22C after 100 cycles and excellent long cycle stability (673.5 mAh/g at 2.2 C with a low decay rate of only 0.032% per cycle over 800 cycles).
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
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IF 5.2
Yuncong Yang,Wenmin Song,Balaji Murugesan,Xiuwen Cheng,Mingming Jiang,Zhuo Chen,Beifa Yan,Yurong Cai
Flexible strain sensors have attracted the attention of researchers due to their wide range of applications in wearable electronic skin and healthcare monitoring. The fabrication of flexible strain sensors with high strength , good linear sensitivity, stability and comfort is still challenging. Here, an anisotropic silk fibroin (SF) based hydrogel is fabricated through an oriented freezing method and a low-temperature concentration is to follow. This approach combines HA with SF to increase the hydrogel's water-holding capacity, and Ti 3 C 2 T x MXene is doped as a conductive-sensitive component. Benefitting from the synergy of its well-designed components and the oriented internal crosslinking network structure, the hydrogel has a wide working range and a stable resistance response under 0∼80% compression strain. Especially the oriented hydrogel has ultra-high compression resilience (∼ 99%) in the orientation direction, and it is stable and durable for up to 10,000 cycles under 50% compression self-rebound. Flexible sensors made of conductive hydrogel were attached to the human body or combined with out-of-body clothing to detect human movement. Based on these findings, the prepared conductive hydrogel could be used as a wearable strain sensor material.
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高影响因子
Nano Today
·
2023
·
IF 17.4
Xianyu Zhu,Wenqi Zhang,Huandong Xiang,Qingchao Chang,Ruixue Liu,Yilong Wan,Ruiting Zhang,Feng Zhao,Yongxing She,Hui Yuan,Jigang Yang,Qiqiang Li,Shanshan Wang,Liang Yan
Synergistic radiosensitization of cancer cells by metal-based nanomaterials and natural products is a forward-looking alternative for radiotherapy enhancement while inhibiting tumor metastasis. This work explores a phase change material (PCM)-gated Ti 3 C 2 T x nanosheet as a photothermal-responsive drug delivery system for loading natural trans -resveratrol (RSV), aiming at such synergistic radiosensitization in a controlled manner. This system can improve the biodispersity of RSV in the physiological solutions and inhibit the radiation-enhanced enzymatic activity of Ti 3 C 2 T x nanosheets to a large extent. Upon 808 nm near infrared light illimitation, Ti 3 C 2 T x -mediated photothermal heating makes the loaded PCM to be melted, resulting in the controlled release of RSV and simultaneous recovery of radiation-enhanced enzymatic activity of Ti 3 C 2 T x nanosheets. By further irradiating with X-ray, Ti 3 C 2 T x nanosheets is responsible for enhanced catalytic decomposition of H 2 O 2 to highly toxic hydroxyl radical as well as the consumption of intracellular glutathione . Both in vitro and in vivo studies demonstrate that those excess radical oxygen species can synergize with the released RSV to induce cancer cell death by apoptosis/ferroptosis hybrid pathway, fully inhibiting growth and metastasis of orthotopic breast cancer. These results reveal that the combination of PCM-gated Ti 3 C 2 T x nanosheets with RSV is capable of fabricating the photothermal-responsive theranostic systems and aiding the confinement of synergistic radiosensitization exclusively in the cancer cells for radiotherapy enhancement against tumor metastasis.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Hang Xu,Mingjing Ge,Yin Liu,Chen Yao,Houzhen Zhou,Mingmei Ding,Yang Li
Singlet oxygen ( 1 O 2 ) is an electrophilic oxidant capable of selectively eliminating contaminants in complex wastewater, which is highly expected in environmental remediation. However, due to the limitations in synthesizing catalysts with well-defined adsorption and active sites, the efficient and selective generation of 1 O 2 remains challenging. Herein, isolated Ru-O 3 moiety decorated two-dimensional Ti 3 C 2 T x catalysts (Ru-SA/Ti 3 C 2 T x ) were prepared to regulate 1 O 2 generation via peroxymonosulfate (PMS) activation. The constructed catalysts with asymmetric dual-metal structures (Ti-O-Ru) exhibited surprising mass activity of 1.4 × 10 4 min −1 ·mol −1 with a high 1 O 2 generation selectivity of 98.3 %. Mechanism inquiry indicated that the enhanced adsorption and electron transfer between PMS and Ru-SA/Ti 3 C 2 T x attributed to the synergistic effect of the strong adsorption at the Ru sites and the rapid electron transfer in the asymmetric Ti-O-Ru structures. Theoretical calculations demonstrated that Ru-O 3 moiety decreased the formation energy barrier of key intermediate *O, thus converting to a 1 O 2 -dominated oxidation path. Two possible degradation pathways of tetracycline hydrochloride (TCH) were proposed by gas chromatography-mass spectrometry (GC–MS), and the toxicities of intermediates were significantly decreased due to the strong electrophilic attack of 1 O 2 . This study deepened the understanding of the specific contribution of individual sites in multi-site synergistic, which furnished implications for the design and optimization of Fenton-like catalysts.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
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IF 18.5
Zhixin Jia,Jingbin Zhang,Zengtao Ji,Jiaran Zhang,Xinting Yang,Ce Shi,Xia Sun,Yemin Guo
Hydrogen sulfide (H 2 S) contamination of food has raised widespread public health concerns, leading to substantial medical and economic burdens. Herein, a 2D/0D heterojunction fluorescent probe (TCTG) with Schottky barriers (SB) is designed and synthesized, utilizing Ti 3 C 2 T x MXene-loaded graphene quantum dots (GQDs), for the detection of H 2 S during food spoilage. The microstructures observed through SEM and TEM reveal that uniformly sized GQDs are evenly attached to the surface of a monolayer Ti 3 C 2 T x . The chemisorption between GQDs and Ti 3 C 2 T x facilitates charge transfer and the formation of SB, resulting in intramolecular charge transfer (ICT) effects. With the introduction of H 2 S, TCTG (50%) exhibits the highest sensitivity, selectivity, and anti-interference properties, with ultra-fast fluorescence transient reaction (3s) and remarkably low detection limit of 41.82 ppb as well as noticeable color change. When TCTG (50%) reacted with H 2 S, the ICT effects are inhibited, leading to the recovery of photoinduced electron transfer (PET) and fluorescence quenching. Notably, probe TCTG is effectively utilized to detect changes in H 2 S levels in raw foods to assess their quality. Overall, the significance of this study is its potential to revolutionize food spoilage detection, offering a fast, reliable, and sensitive method to ensure food safety and reduce associated health and economic burdens.
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高影响因子
Analytical Methods
·
2024
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IF 2.7
Jing Li,Xun Zhou,Guanghua Mao,Gangbing Zhu,Yinhui Yi
In recent years, numerous colorimetric methods have been developed for the detection of silver ions (Ag+), yet there remains a need for a simple, sensitive, real-time and quantitative sensing platform. Herein, Ti3C2Tx MXene nanoribbons (Ti3C2TxNRs) were utilized as the carrier material, and gold@platinum (Au@Pt) bimetallic nanoparticles were decorated onto the Ti3C2TxNR surface, for the first time, via a facile self-reduction method. The resulting Au@Pt–Ti3C2TxNR nanohybrid exhibited excellent catalytic activity, facilitating the oxidation of 3,3′,5,5′-tetramethylbenzidine, a colorless substrate, to generate a blue product (oxTMB), displaying prominent peroxidase-like activity. In the presence of Ag+, a remarkable inhibiting effect was observed on the catalytic activity of the Au@Pt–Ti3C2TxNR nanohybrids, effectively halting the generation of oxTMB. Based on this, the as-obtained Au@Pt–Ti3C2TxNR nanozyme was then utilized to develop a novel colorimetric sensing platform for Ag+ detection, with a low detection limit of 1.57 nM and a wide linear detection range from 5.0 nM to 9.0 μM. In addition, by combining the unique advantages of hydrogel materials and smartphone technology, a simple, real-time and quantitative platform for Ag+ monitoring was constructed, highlighting its potential for practical applications in Ag+ detection.
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PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
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IF 2.7
Ting Li,Qianqian Zou,Junhai Wang,Qiang Li,Yumu Zhou,Yulan Tang
The presence of antibiotics in aquatic systems poses a significant risk to both the ecological balance and human health. To address this issue, the development of advanced photocatalytic materials capable of efficiently treating antibiotic-contaminated wastewater is imperative. In this investigation, we successfully synthesized nitrogen–phosphorus co-doped carbon dots (NPCDs) modified (001) TiO2/Ti3C2Tx composites via a series of uncomplicated hydrothermal reactions, ensuring visible light responsivity. Comprehensive characterization of the composite photocatalysts was conducted using XRD, FT-IR, N2 adsorption, SEM, TEM, XPS, UV-Vis DRS, and PL techniques. Subsequently, the photocatalytic performance was assessed through the degradation of tetracycline hydrochloride (TC) and ceftiofur sodium solutions under visible light irradiation. The optimized composites exhibited remarkable photocatalytic degradation efficiencies of 93.4% and 75.5% for TC and ceftiofur sodium, respectively, under visible light, following quasi-primary kinetic behavior. Reactive free radical capture experiments highlighted the predominant roles of ˙O2− and ˙OH species in the photocatalytic degradation process. Additionally, we proposed plausible mechanisms governing photocatalytic degradation based on the obtained results. The heightened photocatalytic reactivity arises from the efficient transfer of photogenerated electrons through the NPCDs → TiO2 →Ti3C2Tx pathway, a mechanism that effectively facilitates the separation and transfer of photogenerated charge carriers.
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高影响因子
Journal of Hazardous Materials Advances
·
2023
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IF 0
Chunhu Tan,Tingting Zhang,Gongying Wang,Libin Zhang,Chang Liu,Weihua Li,Jiansheng Li,Rui Lu
Currently, despite the wide application of Ti 3 C 2 T x in various fields, little information is available regarding its toxicity to humans, thus, it is necessary to study its interactions with human proteins as well as its biotoxicity. In the study, spectroscopic analysis and molecular simulation were used to investigated the interaction mechanism between human serum albumin (HSA) and Ti 3 C 2 T x with different oxidation degrees. The three prepared Ti 3 C 2 T x materials with different oxidation degrees were analyzed by X-ray diffractometer, X-ray photoelectron spectroscopy, scanning electron microscope and transmission electron microscope, and the results demonstrated that TiO 2 nanoparticles were formed during the oxidation process. In conclusion, the results of the ultra violet spectrum, fluorescence spectra and zeta potential measurements showed that fully oxidized Ti 3 C 2 T x (F-Ti 3 C 2 T x ) had a greater binding ability to HSA than unoxidized Ti 3 C 2 T x (U-Ti 3 C 2 T x ), followed by partially oxidized Ti 3 C 2 T x (P-Ti 3 C 2 T x ). Based on synchronous fluorescence, circular dichroism and infrared characterization, it has been determined that with a gradual increase of Ti 3 C 2 T x oxidation degree, its effect on the conformation of HSA increases, followed by F-Ti 3 C 2 T x > P - Ti 3 C 2 T x > U - Ti 3 C 2 T x . Further analysis of the fluorescence binding ability revealed that hydrogen bonds played a major role in the interaction between HSA and Ti 3 C 2 T x .
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