JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.3
Peikai Luo,Zhibin Mao,Guangqi Xu,Ke Sun,Yu Cao,Pei Li,Wenwen Liu
In this study, a PWF/rGO@PVA photocatalytic membrane with high stability and reusability was successfully prepared by employing a blending-coating method. Through the innovative introduction of high thermal conductivity rGO, the membrane achieved enhanced photothermal conversion, which facilitates molecular diffusion and reduces reaction energy barriers. Simultaneously, rGO acts as an electron bridge to promote charge separation and suppress carrier recombination. With an optimal photocatalyst content of 5 wt%, the PWF/rGO@PVA membrane exhibited excellent degradation rates of 0.0112 min⁻¹ and 0.0101 min⁻¹ under UV and visible light respectively, and maintained over 70% removal efficiency after five cycles. Selective laser texturing was then applied to the membrane surface, achieving degradation rates of 96.7% and 93.6% under UV and visible light respectively, and maintained over 90% removal efficiency after five cycles. On one hand, the created periodic microstructures increased specific surface area which provided additional adsorption sites and reaction interfaces and significantly enhanced the anti-reflective properties of the membrane surface. On the other hand, the laser texturing process disrupts the hydrogen bonding network of PVA, thereby suppressing warpage deformation during photocatalytic cycling and improving structural stability. Finally, the dynamic water experiments verified that at a flow rate of 1.0 mL/min, the photocatalytic membrane retained over 80% degradation efficiency and maintained high photocatalytic stability in dynamic water environments with varying pH and the presence of inorganic anions.
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IONICS
·
2016
·Vol. 22
·期 11
·2225-2233
·
IF 2.119
Lu Juanjuan,Liu Yuelin,Liu Xinhe,Lu Xiaoquan,Liu Xiuhui
In this article, we constructed an electrochemical sensor for highly sensitive determination of β-nicotinamide adenine dinucleotide (NADH) using the poly(diallyldimethylammonium chloride)-functionalized reduced graphene oxide nanocomposite modified electrode (PDDA-rGO/GCE). The nanocomposite was characterized by transmission electron microscopy, Fourier transform-infrared spectrometry, ultraviolet-visible absorption spectrometry, cyclic voltammetry, and electrochemical impedance spectroscopy. The experimental results demonstrated that the fabricated sensor exhibited excellent electrocatalytic activity on the oxidation of NADH with a decreased about 200 mV in overpotential and 5.0-fold increment in the oxidation peak current compared to a bare GCE. Applying cyclic voltammetry, a wide linear range from 1.0 × 10 −7 to 2.9 × 10 −3 M with low limit of detection (LOD) of 3.4 × 10 −8 M and high sensitivity of 463.3 μA mM −1 cm −2 were obtained, which was superior to other NADH electrochemical sensors reported previously. Furthermore, the fabricated NADH sensor possessed excellent selectivity, reproducibility, and stability. The oxidation mechanism of NADH at the PDDA-rGO/GCE was also discussed in detail.
A simple NADH sensing platform based on PDDA-rGO composite is constructed, which exhibits an ultra-low detection limit ( 3.4×10-8 M) towards the oxidation of NADH, and the electrochemical reaction mechanism of NADH is discussed in detail.
研究领域:
生物电化学
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生物传感器
·
纳米生物技术
·
分子诊断
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转化医学
·
电分析化学
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CATALYSIS COMMUNICATIONS
·
2013
·
IF 2.915
Bin Zeng,Xiaohua Chen,Xutao Ning,Chuansheng Chen,Aiping Hu,Weina Deng
Carbon nanotubes and reduced graphene oxides (CNTs/rGO) sphere decorated with Cu 2 O, CuO nanoparticles (Cu x O–CNTs/rGO) was successfully synthesized by spray drying and post-calcinating method for the first time. Scanning electron microscopy and transmission electron microscopy observations confirmed that CNTs/rGO formed a spherical micrometer structure and Cu x O nanoparticles were decorated on their surface. The experimental results indicated that this novel architecture enhanced photocatalytic performance with 97.5% decomposition of methyl orange (MO) after 20 min in the presence of H 2 O 2 under visible light irradiation, which was much higher than that of pure Cu x O powders (31.2%).
研究领域:
材料科学
·
纳米科技
·
光催化
·
环境功能材料
·
复合材料
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高影响因子
CERAMICS INTERNATIONAL
·
2021
·Vol. 47
·期 14
·20310-20316
·
IF 4.527
Yang Yan,Linlin Zang,Tianwei Dou,Haicheng Li,Liguo Sun,Yanhong Zhang
In this work, we prepared a hollow Co 3 O 4 nanoparticles (NPs) immobilized reduced graphene oxide (rGO)/carbon monolith (HCGCM) via a one-step carbonization method. The doping of nanomaterial and transition metal oxide can improve the poor conductivity and low capacitance of pure carbonaceous materials. The optimal addition concentration of polystyrene microspheres as a template provided the HCGCM composite with a hierarchical pore structure and a large specific surface area (1600 cm 2 /g), which is conducive to generating sufficient electroactive sites. At the same time, three dimensional (3D) interconnected pores shorten ion transport paths and reduced diffusion resistance of ions. Due to the existence of pseudocapacitive behavior, the HCGCM composite, as an electrode material working in a three-electrode system, achieved a high capacitance value of 1106 F/g at a current density of 1 A/g. In two-electrode system, the asymmetric supercapacitor had excellent stability performance and remained about 86.7% capacitance after 5000 cycles test. Moreover, it also exhibited a maximum energy density of 66.7 Wh/kg at power density of 750 W/kg. Thus, the strategy of manufacturing 3D porous electrodes is beneficial to improve the overall electrochemical performance of supercapacitors .
研究领域:
材料科学
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电化学
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纳米科技
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能源存储
·
功能材料
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ACS Applied Polymer Materials
·
2026
·Vol. 8
·期 15
·13358-13365
·
IF 5.2
Wang Feifei,He Mantang,Yang Yanan,Hu Hongmei,Han Chaofeng,Li Yaping,Cao Jiliang
With the rapid advancement of electronic devices, electromagnetic
radiation has increasingly caused environmental interference, thereby
stimulating the development of flexible and wearable electromagnetic
interference (EMI) shielding materials. However, it remains challenging
to achieve EMI shielding textiles that simultaneously possess facile
fabrication, high shielding efficiency, and excellent durability.
Herein, a multilevel composite conductive network composed of reduced
graphene oxide (rGO) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(PEDOT:PSS) was successfully constructed on silk fabric (SF) via a
layer-by-layer self-assembly strategy, resulting in a flexible EMI
shielding fabric (SF-PEDOT:PSS-rGO). Specifically, PEDOT:PSS formed
a uniform conductive coating through in situ polymerization, while
rGO further established a continuous conductive network and strengthened
the interfacial interactions among the different components. Benefiting
from the synergistic effect conductive network and interfacil interactions
among PEDOT:PSS, rGO, and SF, the resulting textile exhibited outstanding
EMI shielding performance with a maximum shielding efficiency of approximately
80%. Moreover, the fabric demonstrated excellent durability, retaining
over 80% of its initial shielding efficiency after 30 washing cycles,
while maintaining stable surface resistance and EMI shielding performance
during repeated folding and tape-peeling tests. This study provides
an effective strategy for constructing durable multilevel conductive
networks on textile substrates and offers valuable guidance for the
development of high-performance wearable EMI shielding materials.
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Journal of Energy Chemistry
·
2026
·
IF 15.6
Hanjun Wei,Zhiyong Chen,Yuxiang Lai,Siyu Chen,Lu Tang,Lianyang Chen,Jimei Xue,Zhijun Wang,Ying Li
Developing ultralight aerogels that simultaneously achieve efficient electromagnetic (EM) wave absorption and multifunctionality remains challenging because of the difficulty in synergistically regulating interfacial polarization, conductive networks, and hierarchical porous structures. In this work, an in-situ growth strategy is proposed to construct interface-rich YbCoO 3 /reduced graphene oxide (rGO) aerogels, in which pentagonal YbCoO 3 units are grown in-situ and anchored within a three-dimensional (3D) rGO framework. This architecture enables precise tuning of the heterointerface density, conductive pathways, and porosity, thereby optimizing impedance matching and enhancing EM attenuation. Moreover, the introduction of Yb 3+ ions with localized 4 f electrons induces strong spin-orbit coupling and magnetic anisotropy, promoting high-frequency magnetic resonance and improving magnetic loss. Therefore, the optimized YbCoO 3 /rGO aerogel (Ybr-3 sample) exhibits a remarkable minimum reflection loss (RL min ) of −62.4 dB at 3.2 mm and an ultrawide effective absorption bandwidth (EAB) of 10.0 GHz (8–18 GHz) at a thickness of 2.2 mm while maintaining an ultralow density of 0.0047 g/cm 3 and a low filler content of 5 wt%. Additionally, a significant reduction in the radar cross-section (∼40 dB m 2 ) confirms its superior EM wave attenuation capability. The hierarchical porous structure also imparts multifunctionality, including thermal insulation and efficient dye removal. Mechanistic studies reveal that the enhanced performance arises from the synergistic effects of interfacial polarization, conductive loss, magnetic resonance, and multiple scattering, which are further strengthened by 4 f -3 d electron interactions and interface-rich porosity. This work demonstrates that integrating in situ-growth-induced structural regulation with rare-earth electronic modulation provides an effective pathway for designing ultralight materials with broadband EM wave absorption and multifunctional properties. An interface-rich YbCoO 3 /rGO aerogel was constructed via an in-situ growth strategy, which promotes strong interfacial coupling and enables broadband microwave absorption with multifunctional integration. Download: Download high-res image (273KB) Download: Download full-size image
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ChemNanoMat
·
2026
·Vol. 12
·期 4
·e202600011
·
IF 2.6
Yang Zhou,Yajun Xue,Bing Zhou,Gaojie Han,Chuntai Liu,Yuezhan Feng
Ammonia-assisted high-temperature reduction is exploited to create ultrathin (23.7 µm) MXene/reduced graphene oxide/Ni (MXene/rGO/Ni) composite films in which monodisperse metallic Ni nanoparticles are nanosoldered between conductive nanosheets. The single-step protocol simultaneously deoxygenates graphene oxide (GO), restores the MXene basal plane, and reduces Ni 2+ , generating an intact yet flexible layered scaffold with a through-plane electrical conductivity of 3.3 × 10 3 S m −1 and sheet resistance as low as 4.5 Ω sq −1 . The reconstructed heterointerfaces supply abundant dipole polarization centers and magnetic dissipation sites, endowing the film with an X-band electromagnetic interference shielding effectiveness (EMI SE) of 35.1 dB that operates through a synergistic reflection absorption mechanism (reflection coefficient R ≈ 0.9, absorption shielding effectiveness SE A ≈ 24.9 dB). Benefiting from the dense conductive network, the film enables efficient photothermal conversion and delivers linearly tunable photothermal response with excellent cycling stability. Mechanical tensile tests give an ultimate strength of 7.4 MPa, Young's modulus of 0.97 GPa, and toughness of 31.19 KJ m −3 for rMG/Ni-600 films. The aqueous fabrication route and excellent batch-to-batch reproducibility highlight the reliability of MXene/rGO/Ni homogeneous layers as lightweight, multifunctional shields for flexible electronics and high-temperature photothermal-management platforms.
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PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Z.P. Liu,J.N. Ren,T.N. Man,S.B. Gu,Y.F. Li,J.Y. Xu,M.W. Zhu,S.V. Panin,S.W. Lu
Conventional honeycomb microwave-absorbing structures cannot simultaneously achieve superhydrophobic protection and electromagnetic impedance matching under harsh service conditions such as high humidity, salt spray, and icing. To address this, the present work proposes a surface-energy-driven self-assembly strategy. RGO/SiO₂ nanostructures are introduced into a phenolic resin matrix to form a gradient architecture, which is then applied to a functionalized aramid paper honeycomb. The self-assembled gradient structure creates a low-surface-energy micro/nanostructured rough interface on the outer surface, endowing the coating with excellent superhydrophobic and anti-icing properties. Meanwhile, it enhances the incidence and dissipation of electromagnetic waves through the synergistic effects of outer-layer impedance buffering, intermediate loss enhancement, and multiple interfacial polarization. The results show that the 3FCPR coating exhibits a water contact angle of 153° and an ice delay time of approximately 8 min 30 s. In terms of electromagnetic performance, the honeycomb structure achieves an effective absorption bandwidth (EAB) of 10.6 GHz with a minimum reflection loss of −31 dB. By adopting a vertical gradient design, the EAB of the functionalized aramid honeycomb (FAH) structure is further broadened to 14.5 GHz, covering the C, X, and Ku bands. The surface-energy-driven self-assembly strategy enables the synergistic integration of superhydrophobicity, anti-icing capability, and microwave absorption while preserving the mechanical properties of the honeycomb itself. This work provides a new route for the multifunctional integrated design of lightweight honeycomb microwave absorption materials.
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MATERIALS CHEMISTRY AND PHYSICS
·
2026
·
IF 5.2
Qinqin Qian,Haocheng He,Songyin Fu,Jia Xu,Ho-Pui Ho,Shuwen Zeng,Tao Jiang,Sheqin Lv,Chenjie Gu
The efficient and sensitive monitoring of the interleukin-6 (IL-6) is crucial for the clinical tracking and diagnosis of chronic obstructive pulmonary disease (COPD). Herein, a novel surface-enhanced Raman scattering substrate (RGO@MoS 2 /Ag NPs), comprising an efficient charge-transfer and adsorption layer of reduced graphene oxide (GO) encapsulated in molybdenum disulfide (MoS 2 ) and an electromagnetic enhancement layer of Ag nanoparticles, was developed for the highly sensitive, label-free detection of IL-6. Experimentally, a precursor film consisting of (NH 4 ) 2 MoS 4 and GO was first deposited onto a rough g -C 3 N 4 substrate via spin-coating process. Subsequently, the above precursor film was subjected to a two-step high-temperature annealing process for preparing the RGO@MoS 2 charge transfer layer. Finally, Ag NPs were sputtered onto the RGO@MoS 2 film to induce the localized surface plasmons for the further enhancement of the SERS performance. Leveraging the high specific surface area and exceptional charge transfer properties of RGO@MoS 2 , together with the high-density “hot spots” generated by surface Ag NPs, the fabricated SERS substrate exhibited remarkable electromagnetic and chemical enhancement effects. By using the rhodamine 6G (R6G) as the Raman reporter, it was determined that the lowest detection limit could be as low as 10 −9 M on the optimal SERS substrate, with an enhancement factor of 2.2 × 10 9 . Meanwhile, the substrate also exhibited good uniformity, with a relative standard deviation of 9.84%. Finally, the prepared SERS substrate was used to detect the IL-6, it showed good linear response in the range of 5.0-1000 pg/mL, with a detection limit as low as 0.41 pg/mL.
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Journal of Materials Chemistry A
·
2025
·
IF 9.5
Xinheng Li,Lei Qi,Wanfei Li,Mei Wang,Jianbin Xue,Muzi Chen,Guixin Wang
Electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) into 2,5-furandicarboxylate (FDCA) has attracted great attention due to its potential for producing degradable plastics. But, HMF electrooxidation still faces challenges such as high overpotentials and sluggish kinetics. Meanwhile, H2 evolution at the cathode is less cost-effective than cathodic reactions producing valuable chemicals. In view of this, a MOF-derived CoFeP cube anchored on rGO-encapsulated nickel foam (NF) via a facile wet-chemical method is reported. The CoFeP–rGO catalyst delivers a low potential of 1.38 V at a current density of 100 mA cm−2 in 1 M KOH containing 10 mM HMF, achieving ∼100% conversion, a 96% yield of FDCA, and 100% Faraday efficiency (FE). It acts as a bifunctional catalyst, demonstrating electrocatalytic reduction of nitrobenzene (NB) at low overpotential with 91% conversion. In the proposed mechanism, the CoFeP–rGO interface is proved to play a crucial role in increasing the catalytic activity via promoting dispersion of the CoFeP nanocrystals on the substrate and accelerating the electron transfer rate across the interface.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Zhiyuan Wang,Libo Wang,Shihao Cui,Dejian Xu,Hui Wang,Honghao Liu,Haipeng Zhang,Ning Gong,Qingshan Zhao,Mingbo Wu
Pd-based catalysts play a pivotal role in nitroaromatic hydrogenation for fine chemical synthesis, yet their intrinsic overactivity often undermines target selectivity. In this study, we develop a highly efficient and magnetically recoverable Pd/Fe3O4–rGO catalyst for nitroaromatic hydrogenation through dual-support interfacial engineering, realized by precisely anchoring Pd nanoparticles at the heterojunctions of ferrosoferric oxide and reduced graphene oxide (Fe3O4–rGO). The dual-support modulation effect not only ensures uniform Pd distribution via strong interfacial interaction but also drives directional charge transfer from Pd to the Fe3O4–rGO composite support, synergistically enhancing nitro group adsorption and optimizing H2 dissociation kinetics. The prepared Pd/Fe3O4–rGO catalyst achieves exceptional catalytic performance with 99% conversion and >97% selectivity for the chemoselective hydrogenation of diverse nitroaromatics under mild conditions while maintaining remarkable activity/selectivity over multiple cycles. Notably, the integrated Fe3O4 component facilitates efficient magnetic separation (<2 min), demonstrating industrial viability for continuous processes. This work provides a rational dual-support strategy that simultaneously regulates spatial configuration and electronic states of active sites to overcome the activity-selectivity trade-off in hydrogenation catalysis.
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Xin Liu,Leigang Pei,Chenyang Zhang,Zengxian Tang,Tuo Wang,Yi Liu
TEA presents substantial risks to environmental safety and human health. Thus, developing a highly efficient and precise gas sensor for TEA holds considerable practical value. In this study, In 2 O 3 /rGO heterostructures are constructed to investigate its sensing performance toward TEA. Characterization results demonstrate that In 2 O 3 nanocubes are uniformly deposited on the rGO surface, forming a unique heterostructure. The pure In 2 O 3 sensor exhibits a response of 24.04 to 100 ppm TEA gas at 280 °C. By contrast, the In 2 O 3 /rGO-0.5 % sensor has a response as high as 46.15 under the same testing conditions, which is 1.92 times that of pure In 2 O 3 sensor. Moreover, the synergistic effects between rGO and In 2 O 3 endow the heterostructure with superior long-term stability and reproducibility compared to that of pure In 2 O 3 . These results suggest that In 2 O 3 /rGO heterostructures represent potential candidates for next-generation TEA gas sensors.
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