JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 140
·期 3
·e53341
·
IF 3.057
Zhehong Lu,Yubing Hu,Tengyue Zhang,Hao Li,Haoran Bai,Guangpu Zhang,Fan Guo,Wei Jiang
The anti-migration ethylene propylene diene terpolymer (EPDM) inhibitor coating was prepared by using EPDM as a composite matrix and silicon-functionalized graphene oxide (GO-SiO 2 ) as modifiers to prevent the migration of energetic plasticizers in propellants. The anti-migration performance at different temperatures was analyzed by investigating the diffusion of dioctyl sebacate (DOS) using thermal analysis and immersion tests. After adding 1.0 wt% GO-SiO 2 , the overall performance of the inhibitor coating was the best, and the concentration of DOS that migrated into the inhibitor coating at 30°C was reduced from 45.1% to 38.8% (13.9% decrease). The results confirmed that the introduction of GO-SiO 2 prevented the migration of dioctyl sebacate to the EPDM inhibitor coating. The scanning electron microscopy results showed that GO-SiO 2 was well-dispersed in the inhibitor coating, and the tensile strength increased from 1.80 to 2.11 MPa. Migration kinetics analysis showed that the anti-migration performance was closely related to the crosslink density.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2016
·
IF 5.31
Zhenya Zhu,Jialiang Jiang,Xudong Wang,Xiaonan Huo,Yawei Xu,Qingqing Li,Lei Wang
Novel high-flux and antifouling membranes were prepared by introducing the “three-dimensional structure” nanohybrid particle (GO@SiO 2 ) and polyvinylpyrrolidone (PVP) into polyvinylidene fluoride (PVDF) casting solution. GO@SiO 2 nanohybrid particle was produced via in situ hydrolysis and condensation of precursor tetraethoxysilane (TEOS) on the surfaces of graphene oxide (GO) nanosheets, and the nanohybrid membranes were first prepared through phase inversion by an immersion precipitation technique. Compared with PVDF/PVP, PVDF/SiO 2 /PVP and PVDF/GO/PVP membranes, PVDF/GO@SiO 2 /PVP membrane had outstanding performance in hydrophilicity, surface roughness, and mechanical force. The rejection rate of bovine serum albumin (BSA) exceeded 78.5% under high water flux (1232 L/(m 2 h)) and the membrane flux recovery rate was highest (BSA = 77.5%, sodium alginate (SA) = 82.1%). To investigate the antifouling properties of the nanohybrid membrane further, the adhesion forces of foulant and membrane were determined using our own foulant probes with an atomic force microscope (AFM). The results showed that the adhesion forces between PVDF/GO@SiO 2 /PVP membrane and foulants (BSA and SA) were far smaller than the adhesive forces of the foulants with the PVDF/PVP membrane. The results showed that the new nanohybrid membrane had the best overall properties and antifouling ability, and it provides a new method for improving the performance of PVDF membranes.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Xu Haiyan,Guan Changjinsui,He Yubin,Mei Ting,Su Zhiping,Ning Liping
The discharge of oily wastewater posed severe threats to ecosystems and human health, underscoring the urgent need for sustainable and cost-effective membrane materials. In this study, a novel superhydrophilic and underwater superoleophobic BF@GO-SiO 2 membrane was constructed through a three-step process involving the delignification of bamboo powder, the blending of GO-SiO 2 hybrids for roughness enhancement, and subsequent vacuum filtration coupled with Polyethyleneimine (PEI) grafting to precisely modulate the pore structure and surface wettability. The resulting membrane exhibited a highly porous three-dimensional network structure, with surface roughness increasing proportionally to GO-SiO 2 content. Attributing to its cellulose-rich framework and robust hydration layer, the BF@GO-SiO 2 membrane achieved exceptional oil/water separation efficiency of 99.5% at high permeation fluxes of 535.2 L m −2 h −1 . Furthermore, the membrane demonstrated superior separation performance (up to 99.4%) for various oil-in-water emulsions, including surfactant-free and those stabilized by CTAB, Tween 80, and SDS. This outstanding performance was attributed to the synergistic effects of its excellent surface hydrophilicity, capillary forces and 3D water channels. The membrane also exhibited excellent durability, maintaining stable separation efficiency (above 98.0%) after 30 cycles and across a wide pH range. Furthermore, the composite membrane achieved a maximum tensile strength of 23.5 MPa, demonstrating its robust mechanical performance. This work provided a scalable strategy for fabricating high-performance separation membranes, offering significant potential for practical oily wastewater treatment applications. Graphical
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DOI
高影响因子
COLLOID AND POLYMER SCIENCE
·
2026
·
IF 2.9
Ji Hong,Wang Ruiqi,Zheng Song,Yang Ke,Xing Zhixiang
The application of oil-water separation membranes is hindered by their poor thermal stability, limited permeability, and complex production processes. To overcome these limitations, this study developed a novel modified membrane by depositing GO@SiO 2 onto nylon microporous membranes using a facile one-step vacuum filtration method. The prepared membrane exhibited both superhydrophilicity and underwater superoleophobicity. Experimental results demonstrated that the membrane achieved high separation efficiency (> 99%), exceptional water flux (3015.8 L∙m − 2 ∙h − 1 ), and excellent antifouling properties (Oil Contact Angle max = 152°, low oil adhesion) for water-in-oil emulsions. Moreover, the membrane exhibited outstanding flame retardancy (LOI max =29%) and superior thermal stability. It showed higher thermal decomposition temperatures and significantly slower weight loss rates. This modified GO@SiO 2 membrane showed great potential for the industrial-scale treatment of oil-in-water emulsions. Importantly, the flame-retardant properties also made the membrane a promising candidate for offshore oil spill fire remediation.
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DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
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2013
·
IF 5.437
Liu Deng,Chaogui Chen,Chengzhou Zhu,Shaojun Dong,Hongmei Lu
In this paper, Graphene oxide@SiO 2 @CeO 2 hybrid nanosheets (GSCs) have been successfully synthesized by the wet-chemical strategy. TEM, FITR and XPS were applied to characterize the morphology and composition of the nanosheets. The colorimetric assay of these nanosheets indicated that they possessed high intrinsic peroxidase activity, which should be ascribed to the combination of graphene oxide and CeO 2 . A fully integrated reagentless bioactive paper based on GSCs was fabricated, which were able to simultaneously detect glucose, lactate, uric acid and cholesterol. The results demonstrated that GSCs have great potential as an alternative to the commonly employed peroxidase in daily nursing and general physical examination.
研究领域:
材料科学
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医学诊断
·
生物化学
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产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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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
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环境工程
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DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2018
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IF 6.578
Jiawei Sun,Hengchang Bi,Shi Su,Haiyang Jia,Xiao Xie,Litao Sun
The development of filtration membranes with ultrahigh water flux for separation of oil-in-water emulsions by low energy consumption approach is currently an urgent demand. A novel nanocomposite membrane with superhydrophilic and underwater superoleophobic properties has been successfully prepared by one-step vacuum filtration of an aqueous graphene/SiO 2 dispersion on a microfiltration substrate. Owing to the addition of SiO 2 nanoparticles , the interlayer space of graphene oxide (GO) layers is expanded, enabling this composite membrane to separate a variety of oil-in-water emulsions with ultrahigh water flux (> 4550 L m −2 h −1 bar −1 ), a 2-order-of-magnitude improvement as compared to pure GO membrane, and also superior compared to most commercialized membranes. The proposed convenient, time-saving (< 10 min) and low cost strategy endows possibility of massive production and shed light on commercial applications of water treatment of oil-in-water wastes in industry and daily life.
研究领域:
材料科学
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环境工程
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膜技术
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纳米技术
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水处理
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DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2020
·Vol. 22
·期 5
·1-13
·
IF 2.132
Maimaiti Halidan,Wang Shixin,Awati Abuduheiremu,Xu Bo
Graphene oxide/silica (GO/SiO 2 ) containing various inorganic particles is obtained by using the Xinjiang Wucaiwan coal as carbon source and silicon source. The ruthenium/graphene oxide/silica (Ru/GO/SiO 2 ) composite was prepared by loading Ru nanoparticles on the surface of GO/SiO 2 . Then, the photocatalytic ammonia synthesis performance was investigated while characterizing the structure of Ru/GO/SiO 2 . On the one hand, the Ru can be sufficiently dispersed to make the surface plasmon resonance (SPR) effect enhance significantly. On the other hand, the quantum confinement effect of the defect structure on the Ru/GO/SiO 2 can effectively separate electron and hole, and it can participate in the reducing/oxidizing reaction of photocatalytic ammonia synthesis.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2022
·
IF 6.267
Tian Hao,Yao Wang,Miaorong Zhang,Zhipeng Liu,Jixian Liu,Linjun Huang,Jie Li,Yao Peng,Jianguo Tang
The graphene oxide-silica, GO-SiO 2 (GS) nanoparticles synthesized by in-situ hydrolysis were grafted with block polymers polyethylene glycol (PEG) and low-molecular polyethylene terephthalate (LPET) using 3-isocyanatopropyltrimethicone (IPTES) as a bridge to prepare the additive GS-IPTES plus PEG-LPET (GSIP). This grafting process was confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The GSIP of various contents was used as reinforcing fillers to prepare PET/GSIP composite by melt blending. The crystallization and mechanical properties of the PET/GSIP composite were dramatically enhanced with the addition of small amounts of GSIP. Compared with pure PET, the crystallization temperature of PET/GSIP was increased by 41 °C at 1 wt.% addition of GSIP. Moreover, the highest tensile strength was 91.2 MPa and the highest modulus was 14.7 GPa at 0.8 wt.% addition. The crystalline and mechanical properties improvements were attributed to the synergistic effects of GS and block polymer chains.
研究领域:
材料科学
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高分子化学
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DOI
高影响因子
ENERGY CONVERSION AND MANAGEMENT
·
2021
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IF 9.709
Wei Ji,Xiaomin Cheng,Haixue Chen,Linfeng Li,Yuanyuan Li,Zhi Liu
The sol–gel method was used to overcome the disadvantages associated with the high water solubility of molten salt into advantages, and a W/O emulsion system was constructed. The interfacial polymerization reaction was initiated by ammonium hydroxide to generate a SiO 2 shell layer, which served as a microcontainer for Solar Salt to prepare more stable regular spherical microcapsules with a diameter of 886 nm. Meanwhile, the oxygen-containing functional groups on the surface of graphene oxide (GO) were combined with the shell of the SiO 2 @Solar Salt phase-change heat-storage microcapsule through shared electron pairs and hydrogen bonds, such that they were uniformly distributed on the GO layer. The synthesized composite material exhibited a typical morphology of microcapsules with a core–shell structure uniformly loaded on the sheet. This study proves that the encapsulation of SiO 2 and introduction of the high thermal conductivity enhancement phase increased the thermal conductivity of the microcapsules by approximately 45% compared with pure nitrate and maintained a high specific heat capacity of 1.44 J/(g·K). In addition, the microcapsules exhibited excellent photothermal conversion efficiency, effectively absorbing visible light and increasing the heat storage rate. The addition of GO nanosheets and SiO 2 increased the structural stability of the composite material and its cycle life. Owing to the exquisite composite structure, the structural composition of the microcapsule remained unchanged after 500 thermal cycles, maintaining 98.5% latent heat, 99% heat capacity, and good thermal conductivity . This study provides a new solution for the efficient microencapsulation of molten salt heat storage materials.
研究领域:
材料科学
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能源工程
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DOI
高影响因子
Advanced Materials Technologies
·
2024
·
IF 6.4
Yingbiao Yuan,Piao Wang,Mingfeng Chen,Renjie Chen,Jun Li,Haidong Ju
Herein, the synthesis of a novel microencapsulated phase change material via a sol–gel method is presented, featuring disodium hydrogen phosphate dodecahydrate as the core and a SiO 2 /graphene oxide composite as the shell. The morphology and core–shell microstructure of the synthesized microcapsules are characterized using scanning electron microscopy. The phase change performance and thermal stability are evaluated by differential scanning calorimetry and a high/low temperature test chamber, respectively. Energy dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy are employed to determine the chemical composition of the microcapsules. The findings reveal that the MEPCM exhibited a high melting enthalpy of 174.3 J g −1 . The degree of supercooling is reduced by 2.1 °C, and after 600 thermal cycles, the phase change enthalpy of the microcapsules showed a minor decrease of ≈6.0%. Notably, the thermal conductivity of the microcapsules is significantly enhanced, increasing by up to 51.8%. When integrated into the thermal management systems of lithium-ion batteries, the MEPCM effectively maintained the battery temperature below 46 °C under a 3 C charging rate. In summary, these results suggest that the hydrated salt microcapsule with its hybrid silica and graphene oxide shell is a promising material for the thermal management of lithium-ion batteries.
研究领域:
材料科学
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能源工程
·
纳米技术
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 45
·e56215
·
IF 2.7
Xinxin Xu,Shangchao Ji,Lei Shi,Hailong Chen,Dong Liu,Jiawen Dai,Xianze Yin,Baoqing Shentu,Long Zheng
Developing nonchemical cross-linked natural rubber (NR) latex gloves with antibacterial properties and simultaneously enhanced mechanical strength and elongation at break is challenging. In this study, liquid-like silica (SiO 2 ) nanofluids (SiO 2 nfs) with hard SiO 2 cores and soft organic molecule shells are synthesized and then self-assembled with graphene oxide (GO) via electrostatic interactions to create GO@SiO 2 nfs hybrids, which are blended with NR latex. Strong hydrogen bonding and electrostatic interactions between NR latex particles and GO@SiO 2 nfs hybrids form physically cross-linked GO@SiO 2 nfs/NR composite films. The rigid GO in the hybrids provided reinforcement, while the vicious SiO 2 nfs facilitated the energy dissipation during stretching. This synergy results in simultaneous improvements in the mechanical strength and elongation at break of the GO@SiO 2 nfs/NR composite films. Their tensile strength increased by 95.2% compared with pure NR films and by 20.6% compared with GO/NR composite films, and the elongation at break improved by 27.8% and 19.4%, respectively. Furthermore, the presence of quaternary ammonium cation in SiO 2 nfs conferred excellent antibacterial efficacy against Escherichia coli and Staphylococcus aureus to the GO@SiO 2 nfs/NR composite films. These results offer valuable insights for the development of high-performance, nonchemical cross-linked NR latex products.
研究领域:
材料科学
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生物学
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DOI
高影响因子
危险品化学品经营许可证（带存储）