LANGMUIR
·
2024
·
IF 3.7
Yumin Wang,Ting Xu,Lide Xu,Gan Miao,Fangchao Li,Xiao Miao,Jingwei Lu,Zhiqiang Hou,Guina Ren,Xiaotao Zhu
Adhesive hydrogels are considered to be promising interfacial adhesive materials for various applications; however, their adhesive strength is significantly reduced when immersed in liquid environments (water and oil) due to obstruction of the liquid layer or swelling in liquid, and they could not always be reused when the failure of the adhesive performance occurred. Herein, a graphite oxide/poly(vinyl alcohol) (GO/PVA) hydrogel with strong adhesion in air and under liquid environments was developed by rationally regulating the interactions of water and dimethyl sulfoxide (DMSO) in the binary liquid system. The strong interaction between water and DMSO allowed the water layer of the GO/PVA hydrogel on the hydrogel surface to act as a shield to repel oil in air, under water, and even when immersed in oil, and it also endowed the obtained hydrogel with antiswelling property when immersed in water and oil. Importantly, the GO/PVA hydrogel could serve as an advanced adhesive to firmly bond different substrates in air, under water, and under oil, and interestingly, its dry and wet adhesive performance was repeatable and recyclable. This work is expected to be an important addition to the field of adhesive soft materials.
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FOOD CHEMISTRY
·
2024
·
IF 8.5
Chen Yin,Xin Ding,Zhihao Lin,Jiayong Cao,Weiye Shi,Jian Wang,Dan Xu,Donghui Xu,Yuan Liu,Guangyang Liu
Fresh strawberries are easily contaminated by microorganisms after picking. Therefore, how to effectively store and keep fresh strawberries has been a hot topic for scientists to study. In this study, we prepared a leaf shaped metal organic framework nanomaterial loaded with quercetin (Quercetin@ZIF-L) at first, which can achieve effective loading of quercetin (96%) within 45 min and has a controlled release effect under acidic conditions. In addition, by cleverly combining satellite graphene oxide @ silver nanoparticles (GO@AgNPs) with slow precipitation performance, Quercetin@ZIF-L/GO@AgNPs nanocomposite film with larger pore size and larger specific surface area was prepared by scraping method. The characterization data of water flux , retention rate, flux recovery rate and water vapor permeability show that the composite film has good physical properties. The experiment of film packaging showed that the fresh life of strawberry could be extended from 3 to 8 days, which significantly improved the storage and freshness cycle of strawberry. At the same time, the metal migration test proved that the residual amount of silver ion in strawberry met the EU standard and zinc ions are beneficial to the health, enriching the types of high-performance fresh-keeping materials and broadening the application.
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Frontiers in Bioengineering and Biotechnology
·
2024
·
IF 4.3
Han Meiqi,Wang Yu,Jing Luyi,Yang Gucheng,Liu Yaoyao,Mo Fan,Xu Zhaojie,Luo Jinping,Jia Qianli,Zhu Yuxin,Cao Hanwen,Cai Xinxia,Liu Juntao
The striatum plays a crucial role in studying epilepsy, as it is involved in seizure generation and modulation of brain activity. To explore the complex interplay between the striatum and epilepsy, we engineered advanced microelectrode arrays (MEAs) specifically designed for precise monitoring of striatal electrophysiological activities in rats. These observations were made during and following seizure induction, particularly three and 7 days post-initial modeling. The modification of graphene oxide (GO)/poly (3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)/platinu-m nanoparticles (PtNPs) demonstrated a marked reduction in impedance (10.5 ± 1.1 kΩ), and maintained exceptional stability, with impedance levels remaining consistently low (23 kΩ) even 14 days post-implantation. As seizure intensity escalated, we observed a corresponding increase in neuronal firing rates and local field potential power, with a notable shift towards higher frequency peaks and augmented inter-channel correlation. Significantly, during the grand mal seizures, theta and alpha bands became the dominant frequencies in the local field potential. Compared to the normal group, the spike firing rates on day 3 and 7 post-modeling were significantly higher, accompanied by a decreased firing interval. Power in both delta and theta bands exhibited an increasing trend, correlating with the duration of epilepsy. These findings offer valuable insights into the dynamic processes of striatal neural activity during the initial and latent phases of temporal lobe epilepsy and contribute to our understanding of the neural mechanisms underpinning epilepsy.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Zheng Zhang,Laifa Shen,Xin Xu,Yang Liu,Tianyu Xia,Zhen Zhu,Jiayi Xu,Jing Wang,Qi Wu,Kang Yan,Jinsong Liu,Hao Dong,Kongjun Zhu
With the rapid advancements in global electric aircraft and energy storage, the integration of carbon-fiber composite structures with energy storage technology has become a prominent topic. An AC&GO carbon fiber structural supercapacitor is designed by integrating the high specific surface area of AC with the excellent mechanical properties of GO, achieving a balanced mechanical and electrochemical performance. This supercapacitor exhibits high stability in charge–discharge characteristics, showing a capacitance of 75.79 mF cm −2 at a current density of 0.05 mA cm −2 and an energy density of 236.85 mWh m −2 . In addition, the maximum power density is 22.59 W m −2 at a current density of 1 mA cm −2 . The capacitance retention and coulombic efficiency are 98.99% and 96.52%, respectively, after 10 000 charge–discharge cycles at a current density of 0.2 mA cm −2 . Furthermore, after 15 000 cycles under load-bearing and tensile conditions at a current density of 0.2 mA cm −2 , the capacitance retention is 98.52% and 93.05%, respectively, with the tensile strength remaining above 90% compared with non-energy storage components. The multifunctional efficiency reaches 1.28, indicating the mechanical load bearing and electrochemical energy storage of AC&GO, thereby demonstrating its application potential in aerospace.
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Xin Liu,Qunzhi Zhu,Yaping Qian,Wenjing Wu
Access to clean water is a fundamental right for all individuals. However, globally, there are still 2 billion people who lack access to safe drinking water on a daily basis. Solar-driven interfacial evaporation (SDIE) has been widely explored in recent years as an effective and convenient method for desalination. However, the design and fabrication of photothermal evaporators still face challenges such as rational selection of interface materials, optimizing the evaporator preparation process, controlling the production cost, optimizing the thermal management system, and ensuring stability under different environmental conditions. This study employed a simple one-step hydrothermal and vacuum freezing method to prepare an aerogel with a synergistic effect for photothermal conversion. By doping the semiconductor ZnO into the Ag/GO composite aerogel, light absorption was maximized and efficiently converted into thermal energy, thereby improving overall photothermal conversion efficiency. The prepared ZAGA-1–1 photothermal evaporator achieved an evaporation rate of 3.52 kg m −2 h −1 at 1 kW m −2 with an efficiency of 92.63 %. Additionally, ZAGA-1–1 exhibits excellent hydrophilicity and salt removal ability, while maintaining a stable evaporation rate over 20 cycles. These properties demonstrate the great potential of ZAGA-1–1 for large-scale solar desalination applications.
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Journal of Materials Chemistry A
·
2025
·
IF 9.5
Yuchen Zhao,Jingyun Guo,Bo Yang,Panyouwen Zhang,Xinyi Wan,Lei Wang,Pingwei Ye,Xinsheng Peng
Solar-driven interfacial water evaporation (SDIWE) technology is an promising way to solve the shortage of fresh water scarcity. However, it is still challenging to generate clean water from organic compound contaminated water through SDIWE. Herein, a 3D multilayer inverted cone solar evaporator based on flexible MOF/graphene oxide composite membrane (CFG membrane) is designed for efficient water evaporation and purification. The Co-Ferrocene (Co-Fc) MOF loaded in the CFG membrane expands the interlayer spacing of GO, providing channels for water transport and enhancing the photothermal performance. The 3D multilayer inverted cone structure enhances the absorption of sunlight through multiple reflections of light between different layers. Based on the above design, the 3D evaporator with three layer CFG membranes demonstrates an evaporation rate of 2.28 kg m-2 h-1 under 1-sun illumination, good salt-resistance and long-term stability. Meanwhile, the Co-Fc MOF in the evaporator acts as an effective Fenton catalyst and promote the generation of ˙OH for the degradation of organic pollutants in wastewater. The degradation rate of pollutants in mixed wastewater (MB: 80 mg L-1; TC: 40 mg L-1; phenol: 40 mg L-1) by CFG-3 evaporator is all over 95%. Almost no volatile organic compounds (VOCs) were detected in the distilled water. This may provide a promising strategy for the efficient solar-driven evaporation and treatment of organic wastewater.
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FIBERS AND POLYMERS
·
2025
·
IF 2.3
Xu Jing,Liu Jingxiao,Shi Fei,Xiao Jianbin,Pei Wen,Yu Chen
Developing fibers with integrated photothermal conversion and thermal storage functions provides a promising approach for personal thermal management. However, conventional phase change materials (PCMs) are limited by poor solar absorption and leakage issues, reducing their efficiency. Herein, a novel porous polyimide/Cs x WO 3 /GO composite aerogel fiber (PCGAF) was fabricated by freeze-spinning technology, using polyimide as the skeleton and incorporating Cs x WO 3 and graphene oxide (GO) as photothermal absorbers. Moreover, a PCGAF/PEG composite with enhanced phase change thermal storage capacity was obtained by vacuum-impregnating polyethylene glycol (PEG), as a phase change material, into the framework of PCGAF. The as-prepared aerogel fibers exhibit superior radiative heating, outstanding thermal stability, and excellent thermal management properties. The addition of an appropriate amount of GO improves the solar absorption efficiency of the composite aerogel fibers and provides a thermally conductive backbone, facilitating the rapid thermal response of PCGAF/PEG. The optimized PCGAF-1/PEG exhibited high PEG loading (91.5%) and high enthalpy (117.8 J/g). The dynamic thermal properties of the PCGAF/PEG can effectively regulate body temperature fluctuations, making them highly promising for next-generation smart textiles in personal thermal management.
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Journal of Water Process Engineering
·
2025
·
IF 6.7
Wenshuai Jiang,Jin Yang,Yaning Wang,Yiyang Gao,Wu Ren,Yi Yu,Qingjun Liu
An efficient and sustainable dye wastewater degradation system is designed by using Fe 2+ -modified graphene oxide/MXenes (GO/MX-Fe 2+ ) composites. Experimental results demonstrated that the GO/MX-Fe 2+ composites acted as an efficient catalyst for Fenton-like reaction; moreover, they functioned as an adsorbent to remove dyes and heavy metal ions from wastewater, enhancing the degradation rate and overall purification performance. Furthermore, the study partially confirmed that the ferrous ions involved in the reaction originate from the cross-linking process during hydrothermal synthesis, rather than adsorption. By controlling the dosage of Fe 2+ , efficient degradation can be achieved while inhibiting the formation of iron sludge. Notably, the system generated a small amount of non-iron byproducts during methylene blue (MB) treatment and almost none in the degradation of other dyes, reflecting its wide applicability. The reaction pH adaptability broadened from acidic to mildly alkaline conditions. The rate of MB within 1 h reached more than 95 %, and the GO/MX-Fe 2+ composites exhibited good recyclability. This study demonstrated that due to their straightforward preparation, superior performance and minimal secondary pollution, the GO/MX-Fe 2+ composites are an example of an efficient and sustainable approach for the design of composite materials for dye degradation and environmental remediation.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Rong Huang,Fu Zhao,Yongsheng Li,Zhuoni Jiang,Fangfang He,Kai Zhang,Zhengguo Chen,Guansong He,Wenbin Yang
Traditional crosslinked polyurethane phase change materials face multiple challenges, including poor self-healing ability, low thermal conductivity and insufficient photothermal response. However, existing research has mostly focused on improving single properties, often failing to take into account the comprehensive properties of the material. This study proposes a polyurethane phase change material (GO-Cu 2+ -OUPCMs) based on a “triple dynamic bonds and graphene oxide synergistic strategy.” This material forms a dynamic cross-linked network through hydrogen bonds, oxime-urethane bonds and the coordination bonds formed between Cu 2+ and the oxime-urethane groups, achieving a high self-healing efficiency of 92.10 % while retaining excellent mechanical properties and thermal stability. Graphene oxide (GO) is covalently grafted to the polyurethane network via -NCO groups, enhancing interfacial bonding and significantly improving the material's mechanical strength, thermal conductivity, and phase change enthalpy. In addition, the material exhibits outstanding photothermal conversion capability, enabling rapid thermal response and accelerating the self-healing process. Notably, GO-Cu 2+ -OUPCMs demonstrate remarkable temperature regulation capabilities in lithium battery thermal management, effectively reducing surface temperatures during 3/4C-rate charge/discharge and suppressing thermal runaway. This study systematically elucidates the mechanism of synergistic design between multiple dynamic bonds and functionalized nanofillers, achieving simultaneous enhancement of multiple properties, and providing new insights for the efficient integration and application of polyurethane phase change materials in smart energy storage and thermal management fields.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Yiheng Li,Tao Dong,Pingli Huang,Jian Ji,Haibao Huang
Airborne formaldehyde (HCHO) in indoor environments causes serious health problems and needs to be efficiently eliminated. However, the efficient and stable catalytic oxidation of HCHO can be hardly achieved at room temperature over transition metal oxides due to the limited exposure of active sites. Herein, δ-MnO 2 @GO catalysts were originally synthesized via a facile in situ growth of δ-MnO 2 on the trace graphene oxide (GO) substrate (1%) and stably exhibited nearly 100% HCHO elimination at room temperature. δ-MnO 2 @GO showed the unique 2D coralloid structure with uniformly dispersed δ-MnO 2 nanorod on planar-structured GO, which greatly enhanced the exposure of catalytic sites and mass transfer of reactants. The abundant surface reactive oxygen species (ROS) and hydroxyl (-OH) groups were rapidly generated from the activation of O 2 and surface-adsorbed water over highly exposed catalytic sites. The ROS and -OH groups cooperated well cooperated to maintain the exceptional catalytic activity and stability towards HCHO degradation. In-situ DRIFTS results showed that catalytic HCHO oxidation predominantly follows the Langmuir-Hinshelwood (L-H) mechanism over the δ-MnO 2 @GO. This study presents a simple yet effective strategy for maximizing exposure to catalytic active sites and rational design of efficient catalysts for indoor HCHO elimination.
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JOURNAL OF CHROMATOGRAPHY A
·
2024
·
IF 3.8
Li Liang,Jia Chen,Jing Xiao,Hongdeng Qiu
With the continuous development of industrialization, the excessive emission of nitro aromatic with strong toxicity, high carcinogenicity and non-degradability has attracted great attention. How to efficiently remove nitro aromatic pollutants is an important research topic. In this work, graphene oxide/covalent organic frameworks (GO/COFs) composites were successfully synthesized via interlayer confinement strategy selecting GO, 2,5-dimethoxybenzene-1,4-dicarboxaldehyde (DMTP) and 1,3,5-tri(4-aminophenyl)benzene (TPB) as raw materials. Due to high specific surface area, hierarchical porous structure and good thermal stability, GO/COFs were utilized to adsorb and remove nitro aromatic hydrocarbons in the water environment. The adsorption behavior of GO/COFs for o-nitrophenol, 1,3-dinitrobenzene and 2,4,6-trinitrophenol were further investigated. The GO/COFs composites showed the strongest adsorption capacity for 2,4,6-trinitrophenol, and the maximum adsorption capacity for 2,4,6-trinitrophenol, o-nitrophenol, and 1,3-dinitrobenzene were 438, 317, and 173 mg g −1 , respectively. The experimental results indicated that the GO/COFs composites provided great adsorption capability for nitro aromatic pollutants and can be reused, rendering it an extremely potential adsorbent for organic pollutants.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 5
·1-11
·
IF 5.3
Tian Li,Li Huiling,Han Pengfei,Ma Guangping,Wang Wenzhuo,Jiang Hanyue,Lu Juan
An electrochemiluminescence (ECL) sensor was constructed based on Ru(bpy) 3 2+ @Au and GO@CdS for the detection of tartrazine (TTZ). In the presence of the co-reactant TPrA, Ru(bpy) 3 2+ and CdS quantum dots (QDs) were used as dual luminophores to synergistically amplify the ECL signal of the sensor. Gold nanoparticles (Au NPs) enhanced the electron transport capability of the system and thereby amplified the ECL intensity. Graphene oxide (GO), as a carrier, has a special wrinkle-like structure that not only adsorbed a substantial amount of CdS QDs but also prevented their agglomeration. Additionally, a more sensitive detection method was established based on the quenching of the ECL signal, which occurred due to the interaction between Ru(bpy) 3 2+ and TTZ. A low detection limit (1.3 × 10 –13 mol·L −1 , S/N = 3) was obtained for TTZ concentrations ranging from 4.0 × 10 –13 to 4.0 × 10 –8 mol·L −1 . Finally, actual measurement results from three beverage samples demonstrated that the prepared sensors possess excellent practical capabilities for TTZ detection. Graphical
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