RSC Advances
·
2025
·Vol. 15
·期 7
·5277-5285
·
IF 4.6
Dongfeng Shi,Xiyin Mao,Min Fei,Cong Liang,Yuyang Luo,Zhidan Xu,Liyong Hu
Antibiotics are frequently detected in aquatic environments, posing potential risks to ecological systems and human health. Among the various treatment strategies, advanced oxidation processes (AOPs) utilizing peroxymonosulfate (PMS) activation stand out due to their ease of activation and potent oxidative capabilities. This study synthesized manganese–iron–copper layered double hydroxides coupled with graphene oxide (MnFeCu-LDH/GO) using eco-friendly transition metals. Optimal conditions of pH 7, 298 K, and 0.2 g L−1 dosage of both catalyst and PMS achieved 98% CTC removal in 30 minutes. The composite was employed for the degradation of chlortetracycline (CTC) through PMS activation. Reactive oxygen species (ROS), including 1O2, ˙OH, and SO4˙−, were identified and quantified through trapping and quenching experiments, and 1O2 was identified, to be the most significant contributor to degradation. The catalyst demonstrated excellent reusability, maintaining high degradation efficiency after five cycles. These findings suggest that MnFeCu-LDH/GO-activated PMS is a promising method for mitigating antibiotic contamination in water.
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COMPOSITES COMMUNICATIONS
·
2025
·
IF 7.7
Qiang Jing,Zixi Zhang,Tianqi Liang,Shukun Yu,Shiwei Liu,Hang Zhao,Zheling Li,Pei Huang,Yuan-Qing Li,Shao-Yun Fu
Mimicking the structure of nacres with high filler contents and layered structures has been demonstrated to be a promising strategy to improve the mechanical properties of nanocomposites. However, in the fabrication of such nanocomposites, the incorporation of fillers at high contents often suffers from their agglomeration that remarkably limits their mechanical performances, which is difficult to avoid and evaluate. In this work, nanocomposites, mimicking the structure of nacres, have been prepared using high content graphene oxide (GO) and hexagonal boron nitride (hBN) hybrid fillers, where the incorporation of hBN suppresses the agglomeration of GO. This leads to superior mechanical properties of the hybrid nanocomposites than those reinforced with a single type of fillers, especially at high filler contents. Based on the three-phase rule of mixtures, a concept of ‘dispersion factor’ is proposed. A higher dispersion factor of GO is found in the hybrid nanocomposites than in the nanocomposites reinforced with just GO, demonstrating a higher level of GO dispersion and the suppression of GO agglomeration by adding hBN. Such a hybrid strategy in nanocomposites shows paramount values in the suppression of nanofiller agglomeration for preparing nanocomposites.
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MONATSHEFTE FUR CHEMIE
·
2023
·Vol. 154
·期 3
·367-377
·
IF 1.8
Guo Xuejing,Zhang Yewen,Peng Yanqing
Application of solar thermal energy relies on photothermal effect is one of the emerging topics in green chemical research. Polyethylenimine-grafted graphene oxide (PEI@GO) can harvest thermal energy directly from visible light and be employed as photothermal catalyst in model reactions. Furthermore, this nanocomposite used in carbon dioxide capture-and-release processes relied on photothermal regeneration. Graphical abstract
研究领域:
材料科学
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纳米技术
·
环境科学
·
化学工程
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INTERNATIONAL JOURNAL OF THERMOPHYSICS
·
2025
·Vol. 47
·期 1
·7
·
IF 2.9
Zhang Qiang,Han Yongliang,Ren Jiayao,Wu Fangli,Zhang Rixin,Yang Yuxin,Bi Shengshan
The dispersion stability and thermophysical properties of ternary composite nanofluids (NF) containing graphene oxide (GO), aluminum oxide (Al 2 O 3 ), and silica (SiO 2 ) at different concentrations and ratios, with water-based ethylene glycol and 1,2-butanediol added as antifreeze agents, were investigated. First, the ternary nanofluid was prepared using a two-step method, and the prepared nanoparticles were characterized using field emission scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The influence of surfactant addition on the stability of the nanofluid was analyzed. The density and thermal conductivity (TC) of NF were measured at different volume concentrations (0.2–0.6 vol%) and temperature ranges (298.15–333.15 K and 293.15–363.15 K, respectively). As the GO concentration increased, the proportion of thermal conductivity improvement showed a stepwise increase with concentration changes. When the GO concentration reached 80 % in the three types of nanoparticles, the thermal conductivity of NF at 363.15 K was 58 % higher than that of the base fluid. For the two different base fluids, under the same ratio, concentration, and temperature conditions, the base fluid containing 1,2-butanediol showed a more significant effect in enhancing thermal conductivity.
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POLYMER
·
2020
·
IF 4.231
Ze Ding,Wenbin Yang,Fangfang He,Zhuoni Jiang,Ren He,Jinghui Fan,Kai Zhang
A novel elastic shape-stabilized phase change materials (SSPCMs) were obtained by reducing and vulcanizing a graphene oxide (GO) modified phase change latex (PCL), which is composed of ethylene propylene diene monomer (EPDM) and paraffin. GO as Pickering emulsifier assisted in fabricating EPDM/paraffin PCL. The zeta potential showed that the PCL was stable. Meanwhile, optical microscope and particle size test indicated that the average particle size was 3–5 μm. Scanning electron microscopy (SEM) showed that the SSPCMs were composed of reduced GO (RGO)-coated phase change composite microspheres (PCCMs). The intact RGO coating was beneficial to prevent the leakage of paraffin. According to the leakage rate test, the leakage rate of SSPCMs were decreased. When the GO content was 0.5%, the leakage rate of SSPCMs was 0.3%. The mechanical properties test showed that the tensile strength and elongation at break were up to 2.26 MPa and 1663.53%, respectively. The comprehensive properties of the prepared SSPCM make it have great potential in the field of building temperature control.
研究领域:
材料科学
·
能源工程
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2020
·Vol. 31
·期 4
·3603-3612
·
IF 2.22
Yang Hao,Liu Nan,Ran Meiqing,He Zhiyuan,Meng Rangwei,Chen Mengwei,Lu Haifei,Yang Yingping
In this study, the graphene oxide (GO)-TiO 2 nanocomposite film prepared by the sol–gel method was used to optimize the photoelectric performance of the perovskite solar cells (PSCs), which structure is based on the carbon electrode and no hole transport layer. Through a series of scientific experiments, it has been proved that the GO–TiO 2 nanocomposite film has excellent electrical properties. The electron transport layer which containing 1 wt% of GO makes the PSCs have the most excellent performance. Compared with the controlling PSCs, the photoelectric conversion efficiency of PSCs, which containing 1 wt% GO, increased by 9.3%, from 12.44 to 13.60%. Short-circuit current density (Jsc) increased by 5.99%, from 21.55 to 22.84 mA/cm 2 , and open circuit voltage remained basically unchanged. It can be seen from the measurement results that the trend of incident photon-to-electron conversion efficiency spectrum is consistent with J – V characteristics, indicating that the PSCs device containing 1 wt% GO has the best electron extraction and transfer performance. However, when too much GO is used, the increased surface charge trap state will lead to the acceleration of carrier recombination and the decrease of electron transport path, and the photovoltaic parameters show a downward trend.
研究领域:
材料科学
·
能源科学
·
物理化学
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NANOTECHNOLOGY
·
2023
·
IF 3.5
Feitong Lu,Wei Wei,Qiang Shi,Ning Wang,Yi Xiao,Zibo Li
TiO2/graphene oxide (GO) nanocomposites with high contact interface were prepared with glycol 400 (PEG400) served as dispersant. This nanocomposite exhibits improved photocatalytic efficiency in contrast with the nanocomposite prepared without PEG400. In this work, the photocatalytic performance was investigated by observing the degradation rate of Rhodamine B (RhB). And it is found that the mass ratios of GO in nanocomposites plays an important role. When the mass ratio of GO reached 45%, the photocatalytic performance of the nanocomposites reached the highest, which is ~72%. Moreover, the photocatalytic mechanism was studied through theoretical calculations, which can be summarized as follows: 1. The presence of GO decreases the band gap of TiO2 nanoparticles. 2. GO inhibits the the recombination of photogenerated electron-hole pair. 3. GO improves the adsorption capacity of TiO2 nanoparticles for RhB. This work promoted the application of TiO2/GO nanocomposites in wastewater treatment.
研究领域:
材料科学
·
环境科学
·
纳米技术
·
光催化
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CARBON
·
2026
·
IF 12.7
Yanjun Jiang,Shuai Lv,Baoshan Li,Zihao Zhao,Xinyu Wang,Junjie Fu,Jingyu Wang,Yangzhaohua Sun,Yiming Liu,Dongdong Lv,Yanan Yang,Long Xia
To address the insufficient broadband coverage of conventional microwave absorbing materials, a high-performance absorber is developed through a synergistic strategy integrating microscopic component regulation and macroscopic structural design. Sn particles are uniformly anchored onto graphene oxide (GO) using cetyltrimethylammonium bromide (CTAB) as a charge mediator, constructing pod-like bionic micro-absorbing units. Subsequent heat treatment under an inert atmosphere induces the in-situ formation of a GO@Sn/SnO 2 multi-heterolayer structure. The optimized SG-3 sample exhibits a minimum reflection loss of −59.22 dB and a maximum effective absorption bandwidth of 5.49 GHz. To overcome the bandwidth limits of planar absorbers, a turtle shell-inspired metamaterial superstructure was designed to strengthen multi-reflection and structural resonance. Combining the optimized material with this bio-inspired structure, the composite absorber breaks the bandwidth constraints of the Planck-Rozanov limit and realizes 16 GHz broadband absorption in 2-18 GHz. At r1 = r2 = 6 mm, h1 = 8 mm, h2 = 12 mm, the absorber exhibits a 14.56 GHz effective bandwidth with strong absorption peaks in the S, C, X, and Ku bands, and a maximum reflection loss of −52.88 dB. This work provides a feasible strategy for high-performance broadband microwave absorbers.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yuan Jin,Junyuan Song,Tao Xia,Yi Liu,Nanke Ma,Guangli Li
Baicalein (BAI), exhibits diverse pharmacological activities, making its accurate and sensitive detection crucial for clinical and pharmaceutical applications. To address the need for highly sensitive and precise detection of BAI, a novel composite electrochemical sensor Bi 2 MoO 6 /GO/GCE was developed. The electrochemical analysis revealed a synergistic interplay between the catalytic properties of Bi 2 MoO 6 and the exceptional conductivity of graphene oxide (GO), resulting in the sensor exhibiting remarkable sensitivity (1.27 μA μM −1 ) and a low detection limit (0.05 μM) within the BAI concentration range of 0.1–10 μM. Mechanistic investigations demonstrated that BAI undergoes a two-electron, two-proton oxidation process at 0.2 V (vs. SCE, saturated calomel electrode). Kinetic assessments confirmed that the electrode process is governed by a combined diffusion/adsorption mechanism. Notably, Density Functional Theory (DFT) calculations revealed that neutral BAI molecules (HA state) exhibit the highest adsorption energy (E ads = −4.01 eV) and the most substantial charge transfer (Δq = 1.29 e) on the Bi 2 MoO 6 surface, offering a molecular-level rationale for the observed optimal catalytic activity at pH 6.0. The sensor demonstrated outstanding reproducibility, long-term stability (signal decay < 3% over 15 days) and successful quantification in human serum samples. This study offers a robust sensing platform for monitoring drug metabolism through an integrated materials-performance-mechanism approach.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Yingfan Guo,Nan Zhang,Huiqin Yang,Guorui Zhang,Xinmiao Xie,Yanzhe Wang,Huali Nie,Xiaoxia Wang
To overcome the pervasive trade-off between permeability and selectivity in membrane separation, this study developed a loose nanofiltration membrane operable at low pressure by constructing ordered graphene oxide (GO) nanochannels via Langmuir–Blodgett self-assembly. This technique enables precise layer-by-layer deposition of GO monolayers onto a highly porous electrospun polyacrylonitrile nanofibrous substrate, forming an ultrathin selective layer that achieves high-efficiency separation under low operating pressure. By tuning the number of deposited GO layers, the separation performance can be systematically regulated: as the layer count increases, the rejection of dyes such as Congo Red and Methylene Blue rises significantly, reaching 85–90% for the four-layer GO membrane. In salt separation, the membrane attains a Na₂SO₄ rejection of approximately 80%, with the rejection order following Na₂SO₄ > MgSO₄ > NaCl > MgCl₂, which is attributed to the synergistic effect of size sieving and Donnan exclusion. Furthermore, the GO-coated membrane exhibits enhanced antifouling performance, characterized by high flux recovery and low irreversible fouling. This work not only provides a high-performance loose nanofiltration membrane for dye/salt separation, but also offers a scalable strategy for fabricating precisely structured two-dimensional nanochannel membranes, demonstrating promising potential for wastewater treatment and resource recovery.
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Polymers
·
2025
·Vol. 17
·期 12
·1716
·
IF 4.9
Lili Kong,Xinna Yu,Qifang Sun,Meizhen Huang,Tianyuan Liu,Jie Chen
Polycyclic aromatic hydrocarbons (PAHs) have attracted significant attention due to their severe threats to both ecological systems and human health. In this paper, a high-performance surface-enhanced Raman spectroscopy (SERS) substrate based on NCF/GO/Au@Ag nanocomposites was developed, which enabled sensitive and stable detection of PAHs. The NCF/GO/Au@Ag substrate synergistic utilizes the localized surface plasmon resonance (LSPR) effect of Au@Ag core–shell nanorods and the additional interfacial charge transfer provided by graphene oxide (GO) to exhibit extremely high sensitivity. And the three-dimensional fibrous network of nanocellulose (NCF) improved nanoparticle dispersion uniformity. Combined finite element simulations and experimental studies verified that the dual plasmonic resonances (512 nm and 772 nm) of Au@Ag nanorods optimally match 785 nm excitation, yielding an enhancement factor of 5.21 × 10 5 . GO integration enhanced Raman signals by 1.68-fold through interfacial charge transfer, while the introduction of NCF reduced the signal relative standard deviation (RSD) from 36.88% to 4.29%. The NCF/GO/Au@Ag substrate achieved a detection limit of 10 μg/L for PAHs, demonstrating exceptional sensitivity and reproducibility.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2019
·
IF 3.375
Yan Liu,Jianyi Liu,Yinhua Jiang,Minjia Meng,Liang Ni,Hengli Qiu,Rongguang Yang,Zhanchao Liu,Hongwei Liu
A novel graphene oxide–silica (GO–SiO2)-embedded polyamide nanofiltration (NF) membrane was successfully constructed by the interfacial polymerization reaction between piperazine (PIP) and trimesoyl chloride on the surface of a polysulfone (PSF) microporous support. In order to improve the water flux and enhance the antifouling property, GO–SiO2 nanocomposites were dispersed in PIP solution. Scanning electron microscopy (SEM), atomic force microscopy (AFM), and water contact angle were used to characterize the prepared membranes. The results showed that the surface properties of nanocomposite NF (TFN-NF) thin films had the tendency of more hydrophilicity and smoothness. The surface contact angle (53.7°) and surface roughness (Ra = 5.68, Ra = 7.06) of the TFN-NF membrane containing 0.01 wt % GO–SiO2 were the lowest. Furthermore, 0.01 wt % GO–SiO2/TFN showed the superior separation performance that the water flux was 43.55 L m–2 h–1 and salt rejection for NaCl, Na2SO4, MgSO4 were 40.7, 93.2, 82.4%, respectively. Also, the separation performance of the TFN-NF membrane containing 0.01 wt % GO–SiO2 was further compared with other TFN-NF membranes prepared by previous studies. Besides, after filtration of bovine serum albumin solution, the normalization of the flux of the TFN-NF membranes is 0.83, which has an improvement of 23.88% when compared with that of the bare NF membrane. The result above indicates that the modified membrane shows a better antifouling property than the TFC-NF membrane.
研究领域:
材料科学
·
环境工程
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