CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xueming Bao,Leilei Wu,Biaobiao Yan,Ying Liu,Man Zhou,Qiang Wang,Ping Wang
Transition metal oxides have shown great potential in catalytic indoor pollutant removals, but their applications are hindered by the poor aqueous dispersity, inhalable powder forms and concerning substrate adhesion. Herein, we proposed a simple technique to fabricate durable textile coatings with ‘brick-mud’ nanostructure of Ti 3 C 2 T x (MXene) and manganese dioxide (MnO 2 ). Viscosity-controllable inks were prepared by hybridizing inulin-templated MnO 2 nanoparticles with acid-etched MXene nanosheets at room temperature, establishing firm bindings through coordination bonds between transition metal cores and hydroxyls, covalent redox linkages of Mn/Ti vacancies and intermolecular hydrogen bonds. Meanwhile, the high flatness of MXene optimized the binder/catalyst-free deposition of MnO 2 onto cotton textiles, simplifying the finishing process and providing MXene@MnO 2 coatings with encouraging fastness through the aforementioned triple bridges. Consequently, the resulting textiles exhibit satisfactory photo-antibacterial activities against gram negative and positive bacteria (>99 % within 10 min), accompanying with promising formaldehyde (HCHO) removal ability (>83 % within 30 min) and encouraging ultraviolet-absorption property (<0.05 % of UVA). Summarily, the presented deposition strategy of ‘brick-mud’-like coatings of transition metal catalysts on textiles provides a reliable alternative for the fabrication of multifunctional home textiles to improve indoor living quality.
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高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Wenting Li,Wei Kang,Chengan Ye,Nina Wu,Feihong Wang,Huan Pang
Excessive discharge of uranyl ion (U(VI)-containing) wastewater poses significant environmental and human health risks due to radiological contamination. In this study, a metal–organic framework (MOF) exhibiting aerogel-like properties was synthesized by combining UiO-66-NH 2 with MXene through a freeze-drying process. The research focused on the removal of U(VI) from aqueous solutions with this aerogel material. The adsorption isotherm was consistent with the Langmuir model, and the maximum adsorption capacity was determined to be 229.1 mg∙g −1 . The aerogel-like MOF possesses a mesoporous structure, enhancing its U(VI) adsorption efficiency while enabling easy separation and maintaining structural integrity afterward. In cyclic adsorption–desorption experiments conducted over five cycles, the UiO-66-NH 2 /MXene adsorbent demonstrated a U(VI) removal efficiency exceeding 96 %. Overall, the aerogel-like MOF demonstrates outstanding U(VI) adsorption capacity and shows promise as an effective capacitive deionization (CDI) electrode for mitigating radiological contamination.
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高影响因子
Advanced Science
·
2025
·
IF 14.1
Ao Wang,Zhenqiu Gao,Shaokuan Wu,Yihan Wei,Bohan Lu,Jia Shi,Lanyue Shen,Yina Liu,Xuhui Sun,Zhen Wen
In the face of complex pressure stimuli, pressure sensor is required to sense the magnitude of static force and sensitive to transient mechanical stimuli. However, an individual sensing mechanism has difficulty meeting practical needs simultaneously. In this work, an MXene/cellulose nanofiber (CNF) aerogel@PDMS-based dual-modal pressure sensor is reported for complex stimuli monitoring. The aerogel-based sensing material is fabricated through MXene nanosheets and CNFs. Aerogel ice crystals sublimate and then form a 3D porous structure during vacuum freeze-drying. After attaching PDMS dilution, aerogels achieve >200 reversible compressions, and hysteresis energy is reduced by 57.8%. By utilizing both triboelectric and piezoresistive properties of MXene/CNF aerogel@PDMS, a dual-modal pressure sensor is achieved. The triboelectric effect acquires high sensitivity of 26.95 kPa −1 under low pressure (3.46 Pa–3.32 kPa) and responds to vibrations up to 1000 Hz. On the basis of variable resistances of aerogels, the piezoresistive effect can be used to identify static pressures stably (167 kPa −1 , 1.56–26.64 kPa). Combining two effects broadens the lower limit of high-sensitivity monitoring, realizing static-dynamic detection simultaneously and breaking the frequency limit of piezoresistive materials. Finally, the dual-modal pressure sensor is demonstrated to monitor complex physiological and physical signals, such as pronunciation, gestures, and tone recognition.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaohai Zhang,Yijie Wang,Lei Zhang,Xinru Zhang,Yajie Guo,Bao Hao,Yongqiang Qin,Qiang Li,Lei Fan,Helei Dong,Qiulin Tan
Flexible pressure sensors with porous structures have a wide range of applications in many fields, including in flexible electronic skin, medical diagnosis, and human–computer interaction. As such, the fabrication of pressure-sensitive layers with porous structures capable of superior performance has become a significant research hotspot. Herein, we report a mechanically-sensitively enhanced structure of surface patchy protrusions and porous composites which can be used to accurately monitor limb movement, pulse, and breathing. Notably, the flexible pressure sensor exhibits high sensitivity (21.457 kPa −1 ), wide detection range (0.11–11.022 kPa), rapid response/recovery time (41.84 ms/20.82 ms), and excellent stability and cycle repeatability (up to 6000 cycles). Further, the pressure sensor array can act as an electronic skin to detect the pressure distribution. We further propose a newly developed miniaturized flexible wireless feedback system equipped with five pressure sensors. Using the detected pressure as input, the accurate recognition of nine gestures (98.22 %) was achieved with the help of a convolutional neural network (CNN) model.
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高影响因子
RSC Advances
·
2025
·Vol. 15
·期 21
·16597-16606
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IF 4.6
Xiaojing Chen,Jia Li,Caojie Zhao,Wen Zhou,Jin Yang,Qingjun Liu,Wenshuai Jiang
Ion cross-linking is often used to prepare graphene hydrogels, but the effects of different ion introductions on the properties of graphene hydrogels need to be further explored. In this study, graphene oxide (GO) and GO@MXene non-spherical hydrogels were prepared by introducing different ions, and their adsorption effects on methylene blue (MB) were discussed to determine their feasibility in water treatment. The adsorption efficiencies were significantly variable because the introduction of different ions had different effects on the internal structure and molding process of the hydrogels. The GO and GO@MXene hydrogels crosslinked with Ca2+ demonstrated superior MB adsorption performance compared to those prepared with K+ and Al3+, achieving 85.2% and 85.8% MB removal efficiencies within 9 hours, respectively. Interestingly, the morphology of the hydrogel can be changed by adjusting the drop height, which in turn affects the MB adsorption. The results showed that hydrogels had faster MB removal by preparing them from a higher height (3.5 cm). The results demonstrated that hydrogels prepared from a higher droplet fall height (3.5 cm) exhibited accelerated MB removal, with a 10–20% enhancement in removal efficiency. In addition, the effects of pH and contact time on the adsorption performance of the hydrogels were investigated. The results showed that the best removal effect was achieved under neutral conditions, and the adsorption process was consistent with the pseudo-quadratic kinetic model (R2 > 0.97). In addition, we found that the introduction of MXene enhanced the water stability of the hydrogels, which increased with the metal ion valence number. Furthermore, our study demonstrated that Ca2+-crosslinked GO and GO@MXene hydrogels exhibit excellent selective adsorption of cationic dyes, achieving MB removal efficiencies of 96.6% and 98.3% in mixed dye systems, respectively. This study not only confirms that the introduction of ions can affect the properties of hydrogels by modulating their morphology, but also provides potential candidates for MB adsorption.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Shuman Feng,Zezhen Zhang,Zekun Zhou,Lili Wu
This study developed a novel thin-film nanocomposite (TFN) membrane using vacuum-assisted deposition and surface chemical crosslinking by integrating MXene nanosheets with a tannic acid (TA) and polyethyleneimine (PEI) crosslinked network onto a PVDF substrate. A series of tests were conducted to characterize the chemical structure and surface morphology of the membranes, as well as to measure the concentrations of dye wastewater and saline solutions before and after filtration. The results showed that the introduction of the phenol-amine network altered the surface properties of the MXene layers, reducing the water contact angle to 49.8° and resulting in a negative zeta potential in the pH range 4–10. The optimized TFN-2 membrane achieved 100% removal of cationic dyes (methylene blue, malachite green, crystal violet), with rejection rates of 98.52%, 97.12%, and 100% for methylene blue, Congo red, and Coomassie brilliant blue G, respectively, and also exhibited certain salt ion rejection capability. Moreover, the introduction of the phenol-amine network significantly enhanced the oxidative stability of MXene. The TFN-2 membrane maintained stable flux and removal efficiency during 12 h of continuous operation and retained excellent separation performance after 90 days of storage. This study provides a new approach for developing high-performance separation membranes.
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高影响因子
ACS Nano
·
2025
·
IF 16
Yongmei Chen,Xinyu Zhang,Yan Liu,Zhengkun Liu,Zijie Li,Zhiqi Li,Xiaman Chen,Jiayi Liu,Zihao Chen,Guangquan Mo,Yong Xia,Lei Mou
The development of portable, cost-effective, and highly sensitive biosensors for real-time biomarker detection is crucial for advancing point-of-care testing (POCT) and wearable health monitoring. Here, we present an integrated portable electrochemical sensor (ip-ECS) that combines gold nanoparticles (AuNPs) and MXene-modified screen-printed electrodes (SPEs) with a custom-designed, low-power electronic system for point-of-care monitoring of serum biomarkers. The AuNPs and MXene nanocomposite significantly enhances the electrochemical performance of the SPE by providing a high density of active sites, improved conductivity, and catalytic activity. The detection of two model molecules (DA and UA) validated the feasibility of ip-ECS, achieving detection limits as low as 1.12 and 1.11 μM for UA and DA, respectively. Furthermore, the ip-ECS was successfully applied to detect Cys C in human serum, showing a linear response in the range of 50–5000 ng/mL and a strong correlation (ρ = 0.9556) with conventional latex immunoturbidimetry (LIA). Clinical validation using serum samples from pregnant women revealed elevated Cys C levels in gestational diabetes mellitus (GDM) patients, highlighting the sensor’s potential for early GDM risk prediction. The ip-ECS represents a significant step forward in the development of next-generation biosensors for POCT, wearable diagnostics, and personalized medicine.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Jie Lou,Jian Zheng,Zhijia Zhu,Chunyan Hu,Baojiang Liu
Owing to low biotoxicity, excellent stretchability, and good adhesion properties, hydrogel sensors have received extensive attention from the academic community and developed rapidly. Many scholars have made a series of efforts to explore suitable rapid gelation schemes, which have greatly expanded the development space of hydrogel sensors, but the existing rapid gelation schemes are inevitably cumbersome or costly while achieving rapid gelation. In this work, a simple and inexpensive controlled rapid gelation scheme was found, which only requires the addition of a thermal initiator and ammonium ferrous sulphate into the gel system to enable the controlled rapid formation of chitosan/acrylamide hydrogels at room temperature. In this study, while achieving rapid gelation (within 12 s), the physical properties as well as the sensing properties of the hydrogels were improved by adding Al 3+ and MXene. The final composites obtained have good physical properties (stress 500 kPa, strain 2640 %), excellent sensitivity (GF = 4.48, deformation of 200–500 %), and adhesion properties to a wide range of materials. The chitosan/acrylamide/MXene sensors prepared by this protocol have the effect of detecting different movements of the human body, including repetitive or fine movement changes.
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高影响因子
Environmental Science-Nano
·
2025
·
IF 5.1
Weibiao Ye,Wenhao Lao,Lan Wu,Dong-Xing Guan,Chao Zhang,Yiping Feng,Liang Mao
2D MXene nanosheets are increasingly attracting interest due to their promising applications in materials science and biomedicine. However, the environmental fate of MXenes, particularly their biotransformation, is poorly understood. Here, the biodegradability of Ti3C2 MXene nanosheets was investigated using a plant horseradish peroxidase (HRP)-mediated reaction. The degradation rates of Ti3C2 MXene nanosheets were determined to be first-order in both HRP and H2O2 dosage. Material characterizations and product identifications revealed that peroxidase-catalyzed the oxidation of Ti3C2 MXene in the presence of H2O2, resulting in the formation of holes on its basal plane, the generation of titanium dioxide (TiO2) nanoparticles, and the release of CO2. The assessment using Daphnia magna revealed visible toxicity and enrichment of Ti3C2 MXene to aquatic organisms, with LC50 values of pristine Ti3C2 MXene to Daphnia as 55.41, 7.24, and 2.97 mg L-1 at 48, 72, and 96 h, respectively. Substantial accumulation (74.30 μg Ti mg-1 of dry tissue) of Ti3C2 MXene by Daphnia was observed after 48 h of exposure. Furthermore, the biological effects of HRP-degraded Ti3C2 MXene products on Daphnia were examined. Although the toxicity to Daphnia was reduced, a substantial increase in the bioaccumulation of Ti3C2 MXene biodegradation products (137.36 μg Ti mg-1 of dry tissue) was observed. These findings reveal that enzymatic degradation alters the size and surface chemistry of Ti3C2 MXene, potentially changing its toxicity and altering its environmental compatibility.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Wenwen Tu,Yucheng Liu,Mingyan Chen,Lili Ma,Lingli Li,Bing Yang
In this study, an original photocatalytic self-cleaning composite membrane with the fabrication of graphene oxide (GO), polyacrylic acid (PAA), and g-C 3 N 4 (CN)/amorphous Ti-peroxo complexes (CATC) was prepared on the commercial cellulose acetate membrane (CAM) through the vacuum filtration approach to overcome the common membrane fouling issues. The material properties of composites or membranes were characterized. Here, the permeability and separation performance of membranes were optimized by CATC and PAA dosages. A series of membrane separation tests revealed that the produced membrane had better permeability and dye removal capabilities. A pure water flux (PWF) of the GO/PAA/CATC (GPC) membrane was 30.95 L·m −2 ·h −1 , corresponding to 3.43 times in comparison to that of the pure GO membrane. The removal efficiencies for the GPC membrane towards methylene blue (MB), rhodamine b (RhB), Cu(NO 3 ) 2 , and congo red (CR) were over 99% due to the hydrogen bond, π-π, electrostatic, and physical sieving effects. Also, the GPC membrane demonstrated a favorable separation performance towards oil/water emulsion (over 98%). In addition, the GPC membrane maintained stable rejections towards MB, CR, RhB, and Cu(NO 3 ) 2 at pH 3, 5, 7, 9, and 11 environments. Meanwhile, the self-cleaning GPC membrane was endowed with satisfactory reusability after 6 cycles because of the photocatalytic effect at the roles of h + , O 2 − , and OH free radicals. Hence, it can be expected that the GPC membrane synthesized in this study poses a favorable utilization capability in wastewater treatment.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Qingquan Lin,Guangyong Zeng,Guilong Yan,Jianquan Luo,Xiaojie Cheng,Ziyan Zhao,Han Li
Membrane separation has been widely used for water treatment, but the accumulation of pollutants on membrane surface is still inevitable during practical applications. Photocatalytic technology is an effective and environmentally friendly method for the degradation of pollutants. Here, we reported a simple method to prepare novel two-dimensional (2D) Bi 2 O 2 CO 3 @MXene photocatalytic composite membranes as well as their multi-functional abilities for water treatment. The experimental results exhibited that the composite membrane has ultrahigh water flux after incorporation of N-doped Bi 2 O 2 CO 3 nanoparticles (815.3 L·m −2 ·h −1 ). In addition, the rejection ratio for three different types of oil/water emulsions was all over 99 %, and excellent dyes removals were obtained by membrane separation, adsorption and photodegradation abilities, which were approximately 99.9 % (Congo red), 98 % (Trypan blue) and 98.4 % (Rhodamine B), respectively. Most importantly, the composite membrane maintained a stable permeability and selectivity after five consecutive cycles with visible light irradiation. Density functional theory (DFT) calculation and Finite Element Method (FEM) analysis were carried out to reveal the mechanisms for the improvement of photocatalytic activity and membrane permeability, respectively.
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高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Zhencheng Huang,Tao Huang,Xue Ye,Xingyu Feng,Xiuyuan Yang,Jianneng Liang,Shenghua Ye,Yongliang Li,Xiangzhong Ren,Wei Xiong,Xiaoping Ouyang,Qianling Zhang,Jianhong Liu
Lithium metal is a promising anode material due to its high theoretical capacity and low redox potential. However, lithium metal anode suffers from lithium dendrite, which reduces the cycle stability and reversibility of lithium metal batteries (LMBs). In order to solve this issue, we designed an in-situ polymerization method of organic–inorganic composite materials (methyl methacrylate (MMA)/MXene) to prepare artificial solid-electrolyte interphase (SEI). The as-prepared LMBs exhibit good interfacial contact and high electrochemical performance owing to the charge redistribution effect of MXene layer for decreasing the nucleation energy barrier and on the lithium metal anode. The specific capacity can sustain 106.6 mAh/g even after 1000 h cycles at 1C, and the capacity retention is 80.1 % with LiFePO 4 (LFP) as a cathode material. Therefore, we believe this simple and inexpensive method can effectively restrain the growth of lithium dendrites and improve the cyclic stability and reversibility of the LMBs.
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高影响因子
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