DESALINATION
·
2025
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IF 9.8
Guiqun Liu,Qisheng Ma,Zheng Li,Jialong Zhang,Kuan Lei,Ding Li,Min Xue,Wenli Wu,Jianghua Du,Xiaoli Zhang
Solar photothermal interfaces garner widespread attention as an economical and efficient water purification technology, particularly in applications such as seawater desalination and wastewater treatment. However, their relatively limited capacity to degrade organic pollutants in real wastewater, especially in addressing eutrophic water bodies commonly encountered in daily life, hinders their broader practical deployment. Herein, we synthesize a novel bifunctional hydrogel material, PSTCC (PAM/SA/TiO 2 -CQDs/CNTs), which integrates both photothermal and photocatalytic functionalities. We also design and fabricate a 3D structured hydrogel device to systematically evaluate its potential for eutrophic water purification. By incorporating carbon quantum dot - modified TiO 2 and carbon nanotubes into a polyacrylamide–sodium alginate composite matrix, the hydrogel exhibits significantly enhanced photothermal conversion efficiency while effectively tuning the bandgap of TiO 2 , thereby improving its photocatalytic activity. Furthermore, using a 3D structured mold and demolding process, we construct a PSTCC hydrogel evaporator featuring surface convex protrusions and vertically aligned internal capillary channels, which achieves a high evaporation rate of 2.56 kg m −2 h −1 under one sun irradiation. The device also demonstrates excellent performance in the removal of organic pollutants, achieving a photocatalytic degradation efficiency of 85.5 % for methylene blue and an inactivation rate of 58.7 % for Chlorella vulgaris . This evaporator and its associated device are expected to offer a novel paradigm for treating typical organic pollutants in eutrophic water bodies, holding broad application prospects in the field of green, efficient, and energy-saving water treatment.
研究领域:
环境科学技术
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材料科学
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水处理
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光催化
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可再生能源应用
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DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2025
·
IF 10.5
Yunzhi Han,Min Zhou,Mengjiao Zhu,Wei Zhang,Yu Liu,Tao Liu,Zhenyu Chu,Wanqin Jin
miRNA-25 is a critical and specific biomarker for the early diagnosis of pancreatic cancer. However, its sensitive and efficient detection remains challenging due to its extremely low abundance and time-consuming procedures of conventional methods. In this work, we proposed an ultrasensitive electrochemical aptasensor for rapid determination of miRNA-25 within 30 minutes using cubic Co@CNTs nanoaggregates (CC-NAs) as the signal nano-amplifier. This unique nanoarchitecture was in situ constructed through precisely controlled pyrolysis of CoCo Prussian blue analogues as a single precursor. The resulting CC-NAs exhibit excellent conductivity, electrocatalytic activity, and abundant binding sites for immobilizing capture DNA, thereby enhancing the recognition of reverse-transcribed DNA (tDNA) corresponding to miRNA-25. The aptasensor achieved an ultralow detection limit of 0.3 fM (3×10 -16 M) and an ultrawide linear range from 1 fM to 10 nM, along with high reliability and accuracy in real sample analysis. This CC-NAs based aptasensor holds great promise for facilitating rapid and ultrasensitive early screening and warning of various cancers, providing a powerful technique for aiding clinical diagnosis across diverse scenarios.
研究领域:
生物分析化学
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纳米技术
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肿瘤学
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生物传感器
·
分子诊断
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DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 31
·1-22
·
IF 2.8
Guo Yiting,Hao Jingyi,Wang Tian,Su Shen,Yang Shuangshuang,Wang Xingwei,Yu Qiangliang
To investigate the electromagnetic wave absorption performance of electromagnetic-regulated materials and copolymerized composite aerogels with polymer materials, this study loaded nano-Fe 3 O 4 onto modified CNTs through a hydrothermal reaction. The resulting material was then added to a prepolymer solution of acrylic acid and acrylamide monomers for copolymerization, followed by the preparation of composite aerogels using freeze-drying technology (Fe 3 O 4 -CNTs/P(AA-AM)). The influence of the addition amount of nano-Fe 3 O 4 -loaded modified CNTs on the electromagnetic wave absorption performance of the composite aerogels was systematically studied. Notably, the Fe 3 O 4 -CNTs/P(AA-AM)-5 aerogel exhibited the optimal wave-absorbing performance, achieving a minimum reflection loss of −35.5 dB and an effective absorption bandwidth of 5.04 GHz below −10 dB. This is primarily attributed to the excellent dual electromagnetic loss of Fe 3 O 4 -CNTs and the multiple reflection, polarization, and relaxation processes induced by the three-dimensional conductive network constructed within the aerogel skeleton. The performance relationships revealed in this study are of significant importance for the design and preparation of polymer aerogels with effective electromagnetic wave absorption capabilities.
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Chaoyuan Xiong,ShengAo Chen,Pengfei Bian,Jiangxiong Wei,Xiaojun Zeng
Fe 2 O 3 -based electromagnetic wave (EMW) absorbers are essential components in modern aviation equipment and electronic products. To improve the overall absorption capacity, achieving thinner absorbents has become a primary issue. However, this introduces two major challenges: controlling dielectric components during designing and ensuring uniform dispersion. Here, we achieve synthesis of heterostructures containing rare metal (RM) (RM=Ce, La, Nd)-doped Fe 2 O 3 and carbon nanotubes (CNTs) through a hydrothermal synthesis strategy enabled by a hydrothermal-induced in situ reactions of the rare metals. RM-doped Fe 2 O 3 /CNTs composites exhibit strong coupling effects and ultrathin EMW absorption performance due to the formation of a conductive network and heterojunctions. The refection loss ( R L ) value of Ce-Fe 2 O 3 /75CNTs is -56.89 dB at matching thickness of 2.8 mm, and the effective absorption bandwidth (EAB) reaches 3.6 GHz at an ultrathin thickness of 1.3 mm. In particular, Nd-Fe 2 O 3 /75CNTs and La-Fe 2 O 3 /75CNTs also achieve excellent EMW absorption ability, with R L values of -54.39 dB and -53.94 dB at matching thickness of only 1.4 mm and 1.2 mm. The radar cross section (RCS) simulations demonstrate the potential of RM-doped Fe 2 O 3 /CNTs composites for practical radar stealth. These results demonstrate the promise of our rare-earth modification and conductive network construction for the design of high-performance EMW absorbers.
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DOI
高影响因子
NANOTECHNOLOGY
·
2023
·Vol. 34
·期 39
·395502
·
IF 3.5
Fengna Shi,Jingfang Li,Cheng Chen,Fang Wang,Naipin Chen,Ziqi Xu,Jiajun Wang
Monitoring glucose, uric acid (UA) and hydrogen peroxide (H2O2) concentration has emerged as a critical health care issue to prevent acute complications and to minimize the hazard of long-term complications. In this paper, a novel non-enzyme electrochemical sensor was proposed with nanorod-like zinc oxide anchored on carbon nanotubes using a direct precipitation method and then decorated onto carbon cloth (ZnO/CNTs/CC). The ZnO/CNTs composite was characterized by x-ray photoelectron spectroscopy (XPS), Raman spectrum, TEM microscope and electrochemistry. The sensing of UA, glucose and H2O2 individually or simultaneously was done on a ZnO/CNTs/CC electrode, and the superior performance lies in its wide linear range, low detection limit and high selectivity, which is attributed to the synergistic effect of (a) the good electrocatalytic activity of ZnO nanorods, and (b) the large surface area with high conductivity offered by CNTs. Moreover, the ZnO/CNTs/CC electrode showed good reproducibility, stability and selectivity. Importantly, the developed sensor platform has been successfully applied to probe glucose, UA and H2O2 in human serum with satisfactory recoveries. Our proposed approach is simple in fabrication and operation, which provides a straightforward assay for the reliable and cost-effective determination of glucose, UA and H2O2 in clinical diagnosis and biomedical applications.
研究领域:
生物医学工程
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材料科学
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分析化学
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DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2025
·
IF 8.9
Anran Fu,Yunfu Ou,Juan Li,Yunxiao Zhang,Dongliang Shen,Zhen Wang,Zhengyan Chen,Dongsheng Mao
This study investigates the interlaminar toughening of bismaleimide/carbon fiber (BMI/CF) composite laminates using modified carbon nanotubes (CNTs) deposited via spray coating technology. Pristine CNTs were functionalized through chemical modification (grafting 5-aminoisophthalic acid small molecules to yield CNT-COOH) and physical modification (coating with a layer of polydopamine to produce CNT@PDA) to enhance dispersion within the composite matrix. While both modification methods improved the dispersion of CNTs, their thermal stabilities during composite molding led to contrasting toughening outcomes. Chemically grafted CNT-COOH demonstrated superior performance, achieving a 20 % increase in mode I fracture toughness (G IC ) and a 32.37 % increase in mode II fracture toughness (G IIC ). In contrast, physically coated CNT@PDA exhibited reduced toughening efficacy compared to the baseline in both mode I and mode II fracture toughness. This can be attributed to the poorer thermal stability of the physically coated CNT@PDA than that of chemically grafted CNT-COOH. On one hand, the coating material PDA itself has poor thermal stability which is highly prone to decomposition during high-temperature molding. On the other hand, it can be influenced by the methods of CNT modification. The bonding mechanisms of chemical grafting (covalent bonds) and physical coating (van der Waals forces and other physical interactions) differ, leading to varying stability under high temperatures. The decomposition of the coating material and the high-temperature failure of van der Waals forces diminished surface functional groups and introduced defects around the CNTs, significantly compromising interlaminar fracture toughness. The findings underscore the critical role of thermal stability in determining the effectiveness of nanomodification strategies for advanced composite materials.
研究领域:
材料科学
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复合材料界面工程
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纳米材料改性
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高分子基复合材料
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Zhou Yang,Lingling Dai,Fangfei Liu,Kun Jia,Zhiyuan Ren,Yanmei Yang,Qingmeng Zhang,Weifeng Li,Ming Chen
Background Folate is an essential nutrient, but its bioavailability varies greatly depending on the molecular form present in food. The intake of forms that are not readily absorbed by the human body may lead to insufficient folate levels, particularly during pregnancy, thereby increasing the risk of birth defects. As a result, it is essential to develop a highly sensitive and accurate method capable of distinguishing between the two most common natural folates, 5-methyltetrahydrofolate (5-MTHF) and 5-formyltetrahydrofolate (5-FTHF), to ensure proper folate intake and health outcomes. Results In this study, a photochemical method was employed to load gold nanoparticles (Au NPs) onto carbon nanotubes (CNTs), successfully synthesizing CNTs@Au NPs nanocomposites that exhibit excellent thermal stability and robust surface-enhanced Raman scattering (SERS) activity. These nanocomposites, capable of maintaining structural integrity at temperatures as high as 400 °C, serve as highly effective substrates for in situ high-temperature SERS detection. Using this reliable high-temperature-assisted SERS approach, the structural changes of both folates at elevated temperatures were effectively monitored, enabling clear molecular fingerprinting and distinct differentiation between the two natural folates. Moreover, the CNTs@Au NPs demonstrate exceptional sensitivity, achieving a detection limit as low as 10 -8 M for both 5-MTHF and 5-FTHF, enabling accurate quantification of mixed folate samples and demonstrating reliable performance in real sample analysis. Significance The CNTs@Au NPs with in situ high-temperature SERS capabilities show great potential for various analytical applications. In particular, they provide an effective method for monitoring the quality of folate in dietary supplements and fortified foods, thus contributing significantly to the safety and quality assurance of folate products in the market.
研究领域:
分析化学
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纳米材料
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食品安全
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光谱学
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营养科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Tie Liu
The geometric design of atomically dispersed 'framework-active sites' grafted with carbonaceous materials to establish a well-connected three-dimensional network represents a compelling strategy for enhancing the performance of lithium-oxygen batteries, particularly in terms of cyclability. This paper introduces a simple approach that utilizes self-assembly heterogeneous nucleation to fabricate discrete bimetallic (Co, Ni) micron lattices grafted onto CNTs, exhibiting commendable surface properties. This intriguing hierarchical structure optimally harnesses the profound structural effects of CNTs weaving matrix, thereby imparting essential properties to the cathode, including high catalytic activity, intrinsically accessible active sites, and continuous porosity to accommodate discharge products. And such binary metal-nitride grafted configuration is significant in mitigating the embarrassing presence of nitrides (low conductivity) and carbon material (inferior activity). Consequently, cell measurement results indicate that a comparable capacity of 8599.7 mA h g⁻¹ and cyclic performance exceeding 200 cycles are achieved in a semi-solid state battery, outperforming commercially available RuC catalysts. And the DFT calculations further demonstrate the strong electronic coupling transfer and exceptional bifunctional activity observed in this binary metal-nitride sample. Therefore, this work exemplifies both steerable preparation techniques and the considerable potential inherent in geometric design for bimetallic sites grafted with carbonaceous material-based catalysts as they transition from Li-O 2 to Li-air batteries.
研究领域:
材料科学
·
电化学
·
纳米技术
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2019
·Vol. 46
·期 3
·3242-3249
·
IF 3.45
Shiqiang Cui,Sanming Chen,Libo Deng
Silicon has been widely researched as next-generation lithium-ion batteries (LIBs) anodes on account of its high energy density . To solve the large volume expansion and low electroconductivity , carbon coating Si strategies have been developed and shown some progress. In this study, Si nanoparticles were injected into the inner of the double-deck carbon nanotubes for the formation of a sandwich-like structure to enhance the electrochemical properties of Si electrodes. Thereinto, carbon nanotube arrays (CNTs) were fabricated by liquid paraffin as the carbon resource instead of unsaturated hydrocarbon for the first time by chemical vapor deposition (CVD) method. Due to the advantage of the specific structure designed, the as-prepared material shows superior rate performance and excellent cycling stability with high capacity retention (1310 mAh g −1 at 0.1 A g −1 after 100 cycles and 1050 mAh g −1 at 1 A g −1 after 500 cycles with 98% of Coulombic efficiency). Furthermore, the full cell was also assembled with LiFePO 4 as the cathode and manifested a high energy density of 374 Whkg −1 with stable cycling performances (92% capacity retention ratio after 200 cycles).
研究领域:
材料科学
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储能
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电化学
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纳米材料
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电池技术
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DOI
高影响因子
ENERGY & FUELS
·
2022
·
IF 4.654
JiangTao Cai,Yunyun Ding,Youyu Zhu,Liuhua Hou,Shiyong Zhao,Yating Zhang
It is necessary to design an anode material for lithium-ion batteries (LIBs) with good lithium storage capacity. In the present work, the CNTs@PDA/CoMoS4 composite materials were prepared through self-polymerization of dopamine (PDA) and coating on carbon nanotubes and then deposition of CoMoS4 by a hydrothermal method. Benefited from the formation of the coordination bond between the hydroxyl groups of PDA and the metal ions of CoMoS4, the combination between the CNTs@PDA matrix and CoMoS4 nanoparticles is effectively enhanced. As a result, CoMoS4 nanoparticles grow uniformly on the surface of CNTs@PDA, which reduces the diffusion length of Li+ and improves the electronic transmission efficiency. The CNTs@PDA/CoMoS4 as an anode material exhibits outstanding electrochemical properties in terms of a high capacity of 1025.2 mA h·g–1 after 100 cycles at 0.1 A·g–1. Meanwhile, its capacity is 490.3 mA h·g–1 after 200 cycles at 1 A·g–1. The desirable electrochemical properties combined with the stable structure and the facile synthesis route make CNTs@PDA/CoMoS4 composites a potential candidate for high-performance LIBs.
研究领域:
材料科学
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储能
·
电化学
·
纳米材料
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DOI
高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 4.7
Zhe Lin,Delun Chen,Bin Qiao,Xuewei Zhang,Yang Cao,Nan Li,Yuanyuan Wang
Flexible sensing devices have attracted substantial attention due to their unique advantages and have become indispensable components in emerging applications, such as wearable technology, health monitoring, and intelligent systems. The development of multifunctional materials has been identified as a critical driver for the advancement of next-generation flexible sensors. This work presents a multifunctional hydrogel based on poly(acrylamide)-poly(2-acrylamido-2-methyl-1-propanesulfonic acid)/ionic liquid-functionalized carbon nanotubes/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate), (PAAM–PAAMPSA/CNTs-IL/PEDOT:PSS), denoted as PPC, which demonstrates a dual sensing modality. When applied as an electrochemical lactate sensor, PPC exhibits high sensitivity with a low detection limit of 0.34 μM and excellent linearity (R2 = 0.9967) across the concentration range of 1–30 mM in phosphate buffer solution. Furthermore, its electrochemical performance is minimally affected by mechanical deformation, confirming that the interference from incidental strain is negligible. The hydrogel also functions effectively as a strain sensor, demonstrating excellent sensitivity (gauge factor = 1.44) and fast response (550 ms), and consistent performance over 1000 cycles at 100% strain. In summary, the PPC hydrogel developed in this study has the dual functions of sweat lactic acid sensing and stable strain monitoring, making it a promising material in the field of multifunctional wearable devices.
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高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2014
·
IF 3.633
Jie Zhao,Yu Xie,Mingjun Li,Fangcheng Xu,Zhanggao Le,Yuancheng Qin,Dan Zhou,Zhenguo Wang,Hai Xu,Jianfei Pan,Yun Ling
A facile chemical method through hydrothermal synthesis coupled with in situ polymerization to prepare the Mn 0.6 Zn 0.4 Fe 2 O 4 -carbon nanotubes (CNTs)/polyaniline (PANI) nanocomposites has been reported in this paper. The structure of samples has been characterized by the Fourier transform infrared and X-ray diffraction. The shape and size of samples have been observed by the scanning electron microscopy and transmission electron microscopy . The conductive properties of the Mn 0.6 Zn 0.4 Fe 2 O 4 -CNTs/PANI nanocomposites have been tested by a four-probe conductivity tester at room temperature . And the magnetic properties are measured by a vibrating sample magnetometer . When the mass ratio of the Mn 0.6 Zn 0.4 Fe 2 O 4 -CNTs to aniline ( m (Mn 0.6 Zn 0.4 Fe 2 O 4 -CNTs)/ m (An)) is 0.15, the M s , M r and H c achieves 15.44 emu/g, 5.06 emu/g and 308.68 Oe, respectively. At the same time the probable formation mechanism of nanocomposites is also investigated based on the experimental results.
研究领域:
材料科学
·
纳米技术
·
高分子化学
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磁性材料
·
导电聚合物
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DOI
高影响因子
危险品化学品经营许可证（带存储）