Polymer-Plastics Technology and Materials
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2021
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IF 2.371
Dina F. Katowah,Gharam I. Mohammed,Waheed A. Adeosun,Abullah M. Asiri,Mahmoud A. Hussein
This paper reports an electrochemical sensor developed based on cross-linked polyaniline/(chitosan-oxidized single-walled carbon nanotube-graphene oxide/copper oxide) nanocomposite (C-PANI/(OXSWCNTs-GO-CS)/CuO NCs) for detection of a 4-chlorophenol (4-CP). The NCs synthesized by an in-situ chemical polymerization method and characterized by various techniques include XRD, FTIR, SEM-EDX, HR-TEM, TGA-DTG, DTA and cyclic voltammetry. A 4-CP selective electrochemical sensor was fabricated by coating a glassy carbon electrode (GCE) with synthesized NCs. The experimental results reported here displayed the good electrochemical property toward 4-CP oxidation with a detection limit of 0.13 µM (S/N = 3) and good current stability. It also had an impressive percent recovery of the spiked 4-CP in real environmental samples. The improved sensing performances were attributed to the formation of the network structure of C-PANI/(OXSWCNTs-GO-CS)/CuO NCs. Therefore, this study presents a sensitive and promising 4-CP electrochemical sensor for water quality management and human health protection.
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高影响因子
MATERIALS TECHNOLOGY
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2018
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IF 1.232
Jixiang Wang,Hongqiang Shen,Xiaohui Dai,Chunmei Li,Weidong Shi,Yongsheng Yan
The photocatalytic technology provides a simple and effective strategy for the ever-increasing environmental and energy problem. In this work, we put forward a practical method to facilitate effectively the separation of photogenerated electrons and holes by addition of graphene oxide in Ag3PO4 and Bi2O3 nanocrystals semiconductor composite. Compared with GO-single component, the three-component GO-Ag3PO4/Bi2O3 composites with the optimum Ag3PO4/Bi2O3 ratio (6:4) and content of GO (6 wt-%) presented a further improvement on the photodegradation of tetracycline by visible light irradiation driven. GO served as a medium is used to effectively transfer of the photogenerated electrons from the conduction band Bi2O3 of to the valence band of Ag3PO4, the Z-Scheme photocatalytic degradation mechanism was proposed. Our work provides an effective method for development of pragmatic photocatalyst in present environmental pollution, energy problems and other related fields.
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ACS Applied Materials & Interfaces
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2016
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IF 7.145
Yingjie Zhou,Zemin Mao,Wei Wang,Zhengkai Yang,Xiang Liu
This paper reports a series of novel Ni-based metal–organic framework (Ni–MOFs) prepared by a facile solvothermal process. The synthetic conditions have great effects on the Ni–MOFs morphologies, porous textures, and their electrochemical performance. Improved capacitance performance was successfully realized by the in-situ hybrid of Ni–MOFs with graphene oxide (GO) nanosheets (Ni–MOFs@GO). The pseudocapacitance of ca. 1457.7 F/g for Ni–MOFs obtained at 180 °C with HCl as the modulator was elevated to ca. 2192.4 F/g at a current density of 1 A/g for the Ni–MOFs@GO with GO contents of 3 wt %. Additionally, the capacitance retention was also promoted from ca. 83.5% to 85.1% of its original capacitance at 10 A/g even after 3000 cycles accordingly. These outstanding electrochemical properties of Ni-based MOF materials may be related to their inherent characteristics, such as the unique flower-like architecture and fascinating synergetic effect between the Ni–MOFs and the GO nanosheets.
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高影响因子
Surfaces and Interfaces
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2025
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IF 6.3
Yue Zhao,Da-Peng Wang,Guang-Long Zhang,Jin-Wei Zhang,Ji-Yong Zheng,Cun-Guo Lin
In this work, the carbon-based 2D-3D composite nanocontainers endowing coatings with both active and passive protection properties were constructed by the sp 2 /sp 3 hybridized carbon as a versatile strategy. The classic graphene oxide (GO, sp 2 C) and Covalent Organic Framework-300 (COF-300, sp 3 C) were chosen as examples and benzotriazole (BTA) as the inhibitor to fabricate the GO/COF-300@BTA nanocontainer. The composite nanocontainers embedded in polyvinyl butyral (PVB) coatings were applied on cupper substrates to get mechanical enhancement, active and passive corrosion protection performance. The tensile strength of GO/COF-300/PVB (12.38 Mpa) was two times higher than that pure PVB (5.96 MPa). The active protection performance was ensured by the corrosion inhibitors encapsulated in the 3D porous carbon skeleton. The passive protection performance was endowed by the maze effect of the 2D carbon-based nanosheets. The |Z| 0.01 Hz of Cu/(GO/COF-300@BTA)/PVB was higher than 10 9 Ω·cm 2 , which was two magnitudes larger than that of PVB coating, demonstrating the anti-corrosion properties. In addition, the quantum chemical calculation and molecular dynamics simulation results elaborated the adsorption states of BTA on copper substrate and the compatibility between the molecular chains of the PVB and the GO/COF-300 nanocontainer.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Libo Ba,Chen Chen,Rui Meng,Yuliang Chen,Yuliang Wu,Yijiang Liu,Weiwei Huang,Fei Yang,Jun Cheng,Xuesong Yi
High-efficiency polyamide nanofiltration membranes were recognized as crucial for alleviating freshwater scarcity. However, the rapid reaction rate between piperazine (PIP) and trimesoyl chloride (TMC) resulted in low membrane flux and suboptimal separation efficiency, which limited the application and development of membrane technology. Herein, a novel MOF-303@GO nanomaterials were prepared by in-situ growth method, which were anchored in the framework of the substrate membrane through a phase separation method to regulate the speed of interfacial polymerization reaction to improve the performance of composite nanofiltration membranes. The MOF-303@GO was found to exhibit an adsorption effect on PIP monomers for the accumulation of the PIP molecules around the MOF-303@GO in the membrane pore, which effectively slowed transfer rate of PIP. This process resulted in a thin PA layer and rough surface, which alleviated the resistance to water molecule transport during the membrane separation process. The adsorption mechanism between MOF-303@GO and PIP was profoundly demonstrated by density-functional theory calculations. Besides, the fabricated membrane demonstrated a good water permeability of 14.53 L·m −2 ·h −1 ·bar −1 , along as well as a high Na 2 SO 4 rejection of 96.56 %. This research provided a novel material to regulate the diffusion state of PIP molecules and introduced a key strategy for uniformly blending to modify the substrate membrane, offering a potential solution to the issue of excessively rapid IP reaction rates.
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JOURNAL OF NON-CRYSTALLINE SOLIDS
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2025
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IF 3.5
Jinyi Ren,Sijia Liu,Jing Zhang,Xinfu Zhao,Shimo Yu,Zhipeng Yuan,Qingliang Guo,Xiaodong Shen,Xibin Yi
Developing highly efficient photocatalysts is crucial for solar-driven wastewater treatment, particularly in enhancing catalytic efficiency and visible-light response. In recent years, most researchers have utilized hydrothermal methods to integrate TiO₂ with graphene aerogels, thereby improving charge separation efficiency. However, severe buildup of graphene sheets will result in insufficient absorption of visible light. To address the limitation, this work directly used titanium dioxide aerogel as the framework, introduced graphene and nano-Cu particles, and combined the sol-gel method to construct a TiO 2 -GO-Cu ternary aerogel structure(TGCA), achieving the multi-component synergistic effect of the active components. The phase composition and mesoporous structure of the material were characterized by scanning electron microscopy, ultraviolet-visible spectrophotometry, N 2 adsorption test, etc. A large specific surface area of 692.9 m 2 /g and excellent pore structure were achieved. Moreover, under visible light irradiation, the degradation efficiency of Rhodamine B (RhB) reached 100% within 30 minutes, and the band gap was reduced to 2.75 eV. After eight cycles, the photocatalyst retained 76.18% of its degradation efficiency, outperforming most TiO₂-graphene materials. This study significantly improved the photocatalytic performance of the catalyst through structural regulation, optimization of electron transport, and enhancement of light absorption. It thereby offers a feasible approach and valuable reference for solar-driven wastewater treatment technologies.
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高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
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2024
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IF 4.1
Luo Fang-Hua,Dong Zhi-Tao,Chen Guo-Hua,Ma Chen,Wang Huai-Yuan
Janus films with asymmetric physical/chemical properties have attracted considerable attention due to their promising applications in personal thermal management, electronic skins, sensors, actuators, etc. However, traditional methods for fabricating Janus films conventionally need the assistance of an interface or auxiliary equipment, which are usually complex and time-consuming. Herein, flexible poly(vinyl alcohol) (PVA)/graphene oxide (GO)/h-BN (recorded as PVA/GO/h-BN) Janus films with thermally, optically, and electrically anisotropic properties are fabricated by a simple density deposition self-assembly method, which just utilizes the density difference between GO and h-BN during water evaporation. Experimental results show that the two sides of the acquired Janus films have obvious asymmetric characteristics. In the original state of the PVA/GO/h-BN Janus films, the thermal conductivity of the GO side (10.06 W·m −1 ·K −1 ) is generally lower than that of the h-BN side (10.48 W·m −1 ·K −1 ). But after GO is reduced, the thermal conductivity of the rGO side reaches 12.17 W·m −1 ·K −1 , surpassing that of the h-BN side. In addition, the relative reflectance of the h-BN side of Janus film is also significantly higher than that of the rGO side, and the surface resistance difference between the two sides is about 4 orders of magnitude. The prepared PVA/GO/h-BN Janus films show great application potential in human thermal management, light conversion switches, and electronic skins. This study provides a simple and versatile strategy for fabricating Janus films with multifunctional (such as thermal, optical, and electrical) anisotropies.
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BMC Oral Health
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2025
·Vol. 25
·期 1
·1-16
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IF 3.1
Li Congcong,Zhao Li,Chen Xiaotao,Aierken Aikepaer,Yu Min,Kong Chuifan,Baheti Wufanbieke
Background Pure titanium and titanium alloy implants have been widely utilized in dental implantology due to their excellent biocompatibility and favorable elastic modulus. However, the inherent bioinertness of titanium-based implant surfaces often results in suboptimal osseointegration with surrounding bone tissue. Consequently, surface modification is essential to enhance the osseointegrative capacity of titanium implants. Methods We fabricated hydroxyapatite-graphene oxide (HA-GO) coatings via electrochemical deposition and systematically compared four distinct protein loading methods. Ultimately, we developed a hydroxyapatite-graphene oxide/interleukin-4 (Ti@HA-GO@IL-4) coating on pure titanium substrates to investigate its physicochemical properties and biocompatibility. Results The composite coating was successfully fabricated on pure titanium substrates, inducing significant surface modifications including the incorporation of bioactive functional groups, enhanced hydrophilicity, and altered surface morphology. Comparative characterization revealed that the composite coating exhibited superior hydrophilic properties, improved mechanical compatibility with bone tissue, stable Interleukin-4 (IL-4) adsorption and sustained-release behavior, as well as excellent biosafety confirmed by proliferation and adhesion assays using mouse embryo osteoblast precursor (MC3T3-E1) cells, when compared to unmodified titanium controls. Conclusions Ti@HA-GO@IL-4 represents a composite coating material with exceptional physicochemical properties and biological performance. This material demonstrates efficient IL-4 loading capacity and sustained release characteristics, thereby effectively promoting osteogenesis. These findings provide valuable insights for developing bioactive functional materials to enhance implant osseointegration.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2025
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IF 9
Chunli Liu,Lei Zhu,Yixin Zhang,Wanwan Hu,Yongqian Shen,Haize Jin,Haiyan Wang,Wenqing Niu
The trade-off between membrane permeance and solute rejection is a persistent challenge in membrane filtration, where higher permeance typically compromises rejection performance. To overcome this limitation, we developed a one-step fabrication method for an integrally skinned asymmetric tight ultrafiltration membrane via a polyion complex reaction-assisted non-solvent induced phase separation process (PIC-assisted NIPS). A reactive hydrolyzed polyacrylonitrile (H-PAN) matrix was used to prepare the dope solution, while an aqueous solution of polyethyleneimine (PEI)/graphene oxide (GO) soluble complexes served as the coagulation bath. During phase separation, the PEI/GO complex further participates in polyelectrolyte complexation with H-PAN, resulting in the formation of a dense selective layer composed of HPAN/PEI/GO on membrane surface, enabling simultaneous high permeance and rejection. Subsequent crosslinking with glutaraldehyde further stabilized the membrane structure. The PEI content and molecular weight in the complexes critically influenced the skin layer thickness and separation performance. The optimal membrane, fabricated with 0.4 wt% PEI-10000 in the coagulation bath, exhibited exceptional performance: a water permeance of 226.1 ± 0.4 L·m −2 ·h −1 ·bar −1 , 99.8 ± 0.1 % rejection of Congo Red, and 3.2 ± 0.3 % NaCl rejection. This study presents a facile and efficient strategy for fabricating high-performance tight ultrafiltration membranes for dye removal from wastewater.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2019
·Vol. 44
·期 4
·1362-1370
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IF 3.069
Xingshuang An,Xiaojie Shi,Hui Zhang,Yao Yao,Guangxian Wang,Qingqing Yang,Lianming Xia,Xia Sun
In this paper, a sensitive electrochemical immunosensor modified with graphene oxide–chitosan (GO–CS) and cerium oxide–chitosan (CeO2–CS) using screen-printed electrodes (SPEs) was developed for the determination of aflatoxin M1 (AFM1) in milk. Compared with other electrodes, SPEs are easy for quick detection and no polishing steps are required. Graphene oxide (GO) has strong electrical conductivity and a large specific surface area, which can accelerate the transfer of electrons and fix more anti-AFM1 antibodies (ab-AFM1) on SPEs. Compared with GO, cerium oxide (CeO2) nanoparticles have a smaller diameter, and CeO2 can be uniformly attached to the surface of the GO. Simultaneously, CeO2 has good redox properties and can further accelerate the transfer of electrons, thereby further amplifying the electrochemical signal of the sensor. Chitosan (CS) has strong complexation ability, which can uniformly disperse GO and CeO2. Herein, GO–CS and CeO2–CS gradually modified SPEs to improve their electrochemical response and immobilize more antibodies. The properties of the AFM1 immunosensor were studied via differential pulse voltammetry (DPV) and cyclic voltammetry (CV). Under the optimal conditions, the immunosensor showed great reproducibility and high stability with a detection limit of 0.009 μg L−1. In addition, the immunosensor was successfully utilized for the determination of AFM1 in milk. This immunosensing principle will have broad prospects for the analysis of toxins in food, ensuring the safety of milk and dairy products.
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International Journal of Biological Sciences
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2020
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IF 4.858
Shan Peng,Yingming Sun,Yuan Luo,Shijing Ma,Wenjie Sun,Guiliang Tang,Shuying Li,Nannan Zhang,Jiangbo Ren,Yu Xiao,Xuefeng Liu,Junhong Zhang,Yan Gong,Conghua Xie
Background : Recent advances in nanomedicine provided promising alternatives for tumor treatment to improve the survival and life quality of cancer patients. This study was designed to explore the insight mechanisms of the anti-tumor effects of the novel nanocomposites (NCs) MFP-FePt-GO with non-small cell lung cancer (NSCLC). Methods : A chemical co-reduction method was applied to the synthesis process of MFP-FePt-GO NCs. The chemical synthesis efficiency and morphology of the NCs were measured with spectroscope and transmission electron microscope. Colony formation assay and cell apoptosis were conducted to assess the radiosensitivity effect of NCs with radiation. Then, we detected cell mitochondrial membrane potential and reactive oxygen species (ROS) level by flow cytometry to further explore the cause of cell death. Immunofluorescence staining and Confocal were carried out to determine the DNA damage repair. A Lewis lung carcinoma animal model was used to measure safety and anti-tumor efficiency in vivo . Results : The novel NCs MFP-FePt-GO designed on a lamellar-structure magnetic graphene oxide and polyethylene glycol drug delivery system was synthesized and functionalized for co-delivery of metronidazole and 5-fluorouracil. While no severe allergies, liver and kidney damage, or drug-related deaths were observed, MFP-FePt-GO NCs promoted radiosensitivity of NSCLC cells both in vivo and i n vitro . It improved the effects of radiation via activating intrinsic mitochondrial-mediated apoptosis and impairing DNA damage repair. This NCs also induced a ROS burst, which suppressed the antioxidant protein expression and induced cell apoptosis. Furthermore, MFP-FePt-GO NCs prevented NSCLC cell migration and invasion. Conclusion : MFP-FePt-GO NCs showed a synergistic anti-tumor effect with radiation to eliminate tumors. With good safety and efficacy, this novel NCs could be a potential radiosensitive agent for NSCLC patients.
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高影响因子
Surfaces and Interfaces
·
2026
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IF 6
Zhihui Li,Mengke Ma,Chaojin Yang,Yifan Deng,Min Guo,Zhaohui Jiang,Haofei Huang
Hierarchical PPy/GO/Ag coatings boost broadband photothermal conversion. • Controlled LbL self-assembly of PPy, 2D GO and 0D Ag NPs is achieved. • Multilayer interfaces enable solar evaporation and thermoelectric/thermotherapy. Solar energy as abundant, carbon-neutral and globally accessible energy, has garnered considerable research attention in sustainable photothermal conversion technologies. To overcome the intrinsic limitations of narrow spectral absorption and incomplete photon utilization in single-component photothermal systems, this work engineered the hierarchical polypyrrole/graphene oxide/silver nanoparticles (PPy/GO/Ag) composite coatings with multilayer interfaces on fabrics through convenient and universal layer-by-layer (LbL) self-assembly strategy. This rational design yielded hierarchical PPy/GO/Ag composite coated fabrics with 93.3% broadband absorption across the solar spectrum (300–2500 nm). Under 1 kW·m⁻ 2 (1 sun) solar irradiation, the optimized PPy(GO/Ag)-3 composite coatings achieved a steady-state surface temperature of 73.1 °C within 300 s. When integrated with a commercial thermoelectric module, the composite coatings as flexible photo-thermoelectric generator leveraging the Seebeck effect, delivered a stable open-circuit voltage of 39.7 mV and short-circuit current of 9.4 mA, corresponding to a power density of 233.2 mW·m⁻ 2 . In solar-driven interfacial evaporation, the composite coatings achieved high water evaporation rate of 2.01 kg·m⁻ 2 ·h⁻ 1 with photothermal conversion efficiency of 92.1% under 1 sun irradiation. For personal thermotherapy, the composite coated fabric maintained a safe and therapeutically effective surface temperature on human body under both simulated sunlight and natural daylight. Thus, this work provided a versatile photothermal platform for next-generation solar-harvesting systems targeting multi-scenario applications. Download: Download high-res image (322KB) Download: Download full-size image
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