ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2022
·Vol. 414
·期 12
·3571-3580
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IF 4.478
Ye Cui,Xu Fan,Ullah Fateh,Wang Minqiang
Photoelectrochemical (PEC) detection as a potential development strategy for Cu 2+ ion sensor has arisen extensive attention. Herein, CdS/Ti 3 C 2 heterostructure was synthesized by electrostatically driven assembly and hydrothermal method. On the basis of a CdS/Ti 3 C 2 heterostructure, a novel anodic PEC sensing platform was constructed for highly sensitive detection of trace amount of Cu 2+ . Carrier transport at the interface of CdS/Ti 3 C 2 heterostructure was tremendously improved, due to the generation of effective Schottky junctions. Under visible light irradiation, the CdS/Ti 3 C 2 heterostructure-modified PEC platform exhibits great anode photocurrent signal, and the formation of Cu x S reduces the PEC response with the presence of Cu 2+ as a representative analyte. Thus, the linear response of Cu 2+ ranges from 0.1 nM to 10 µM and the limits of detection (LOD, 0.05 nM) are obtained, which is lower than that of WHO’s Guidelines for Drinking-water Quality (30 μM). This idea of component reconstitution provides a new paradigm for the design of advanced PEC sensors. Graphical abstract
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PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 4
·2483-2501
·
IF 4.682
Chen Yuan,Zhang Shengchang,Jiang Chunhui,Zhong Tianhaoyue,Su Zexi,Xu Qibin,Jiang Mengjin,Liu Pengqing
In order to prevent secondary pollution due to the photocatalyst titanium dioxide (TiO 2 ) used in industrial wastewater treatment, and to boost the photo-removal efficiency TiO 2 was immobilized on the surface of high-performance poly (ether ketone) (PEEK) hollow fiber membrane via an in-situ grafting reaction. γ -Methylacryloyloxypropyltrimethoxysilane (MAPS) was used as a coupling agent to link the PEEK hollow fiber membranes with TiO 2 under UV radiation and hydrothermal treatment. The surface chemical structure, surface morphologies, and permeability of the PEEK-PMAPS-TiO 2 membranes were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and the water flux test. The performance of PEEK-PMAPS-TiO 2 membranes in terms of their ability to accelerate the photo-removal of different dyes was investigated under a range of pH conditions. Experimental results showed that the photo-degradation efficiency for tartrazine can be reached 100% (after 4 h of UV radiation at pH of 3.5) with a TiO 2 grafting degree of 15.56 wt% on the composite membranes. We also find that the acidic/alkaline condition accelerates the processes of absorption and photo-removal of negatively/positively charged dyes. In addition, the recyclability of the PEEK-PMAPS-TiO 2 membrane was also investigated. After refreshing treatment, the second photo-removal efficiency still reached over 95%. Graphical abstract
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 3
·2243-2256
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IF 4.682
Liu Huihui,Wang Shuheng,Sun Jun,Gu Xiaoyu,Li Hongfei,Zhang Sheng
Generally, the combustion of ethylene–vinyl acetate (EVA) can be effectively suppressed by the incorporation of 50 wt% magnesium hydroxide (MH), but with limited control on matrix dripping and serious deterioration on its mechanical property. In this work, a surface decorated MH by compound silicone resin (CCSi@MH) was prepared and integrated with red phosphorus (RP) introducing into EVA. The EVA/(5%RP + 45%CCSi@MH) composite achieved V-0 rating in the UL 94 test with a limit oxygen index (LOI) of 31%. The dripping behavior was eliminated. Meanwhile, the mechanical properties were ameliorated by CCSi@MH, which was reflected in both static and dynamic mechanical test. The tensile strength and the elongation at break of EVA/(5%RP + 45%CCSi@MH) composite were improved to 3.7 MPa and 52.3%, which were increased by 48% and 41%, respectively, compared with those of EVA/(5%RP + 45%MH) composite. The prepared CCSi@MH provided an accessible method solving the dilemma brought by MH as flame retardant additives in EVA.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 5
·3452-3467
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IF 4.682
Du Chunxiao,Liu Gaoyang,Qu Zhongji,Wang Wei,Yu Dan
Over the years, graphene oxide (GO) with unique permeability and selectivity has been extensively researched for hydrophilic enhancement modification, especially as the separation layer of oil–water separation composite membranes. However, the poor stability caused by hydration of GO, and the low water flux caused by the lamellar compaction limit its application. In this study, a surface modification strategy based on metal polyphenol coordination was proposed to address these problems by co-deposition of tannic acid-graphene oxide (TA-GO) and TiO 2 on electrospun polyvinylidene fluoride (PVDF) membrane. TiO 2 was inserted into GO layers to expand the interlayer spacing and prevent membrane compaction. Moreover, the interlayer force was enhanced by TA and Fe 3+ through covalent bonds, cation-π, and coordination bond. The results demonstrated that the underwater oil contact angle of resultant composite membrane reached 152.5°. In addition, it has a high flux (243.11 L/h·m 2 ·bar) and oil (> 98%)/salt (> 47%) rejection, which can be maintained even after ultrasonic treatment for 30 min. This work proposed a practical and environmental approach to construct a steady GO-modified hydrophilic membrane. Graphical abstract
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 4
·2870-2882
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IF 4.682
Han Ni,Xu Shishi,Zhang Qinfang
The Bi 2 MO 4 Cl (M = Gd and Nd) nanosheets were prepared by a molten salt flux method for the first time. The resulted Bi 2 GdO 4 Cl (F-BG) nanosheets showed the highest photocatalytic activity for oxygen (O 2 ) evolution and trypan blue (TB) degradation than Bi 2 NdO 4 Cl (F-BN), Bi 2 GdO 4 Cl (S-BG) and Bi 2 NdO 4 Cl (S-BN) synthesized by a solid-state method. The F-BG nanosheets showed the larger specific surface areas and abundant pores, which could provide more reactive sites. The photoelectrochemical and photoluminescence (PL) results revealed that F-BG sample had the excellent separation and transfer rates of photogenerated charge carriers, leading to the highly photocatalytic performance for both O 2 evolution and TB degradation. The UV–Vis diffuse reflectance spectra (DRS) showed all samples had the visible-light-responsive characteristic. The radical trapping experiment revealed hole (h + ) played a major role, while superoxide radical ( \(\cdot {\text{O}}_{{2}}^{ - }\) ) contributed a little to photocatalytic degradation process. Thus, a possible photocatalytic mechanism was proposed based on the radical trapping experiment. This work shows us a useful insight into the preparation of highly active bismuth-based oxyhalide nanosheets photocatalysts by a molten salt synthesis through surface modification and morphology control and provides the possibility of water splitting under visible light.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 4
·2528-2539
·
IF 4.682
Ye Zhenda,Zhao Xi,Yu Weitai,Chen Ying,Lin Pengcheng
Thermal conductive composite materials (TCCMs) applied in the thermal management are of ever-rising significance with the rapid development of a variety of thermal-related industrial products. Previously, the demand for TCCMs with differential thermal conductivity is generally met by using two strategies, tuning the material composition and designing the composite microstructure. However, the miscibility between different components is usually poor, resulting in the uniformity of thermal conductivity of TCCMs. In this work, the flexible reduced graphene oxide@calcium alginate (RGO@CA) composite fibers are fabricated by wet spinning of the lyotropic graphene oxide composite liquid crystals and wet chemical reduction. The resulted RGO@CA composite fibers exhibit high tensile strength of about 200 MPa. The graded utilization of the waste heat can be realized by using RGO@CA composite fibers with different compositions. The displayed utilizations of the waste heat include thermal energy storage, optical sensor, thermal source for chemical reaction. The proposed liquid crystal spinning demonstrates a novel strategy for developing advanced materials toward the thermal management and waste heat recovery of electronic devices and systems. Graphical abstract
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 3
·1810-1832
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IF 4.682
Cen Hongyu,Wu Chonggang,Chen Zhenyu
Extension of corrosion inhibitors from traditional molecular-scale to nanoscale will not only be significant to develop green and efficient inhibitors, but also supplement the discipline system of corrosion inhibitors. However, many research on the interfacial behavior of nano-inhibitors have ignored the special colloidal properties of nanoparticles and show no obvious differences with traditional inhibitors. In this study, graphene oxide (GO) was functionalized with polydopamine (PDA) via covalent modifications and self-polymerization, and GO-PDA was studied as a corrosion inhibitor of carbon steel in HCl solution. Diversified measurements confirmed that GO-PDA can effectively protect carbon steel from corrosion, and the inhibition efficiency almost reached 90% at 100 mg/L. Interfering factors including immersion time and concentration were investigated. The lamellar nanoparticles adsorbed on the surface of carbon steel have formed a hydrophobic film in micro-nano structures. The transition from a negative charge on the GO surface to a positively charged GO-PDA contributed to adsorption at the interface. An initial model of nano-inhibitor was established to explicate the inhibition mechanism. Graphical abstract
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高影响因子
JOURNAL OF APPLIED ELECTROCHEMISTRY
·
2023
·Vol. 53
·期 12
·2331-2346
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IF 2.9
Xiao Yan,Sun Wan-chang,Bai Zhong-bo,Liu Er-yong,Du Liang-liang,Cai Hui,Wang Li-ping,Liu Jing-pei,Jia Ya-peng,Zhang Jie
Additives are a cost-effective method to improve the performance of the very low profile (HVLP) copper foil coarsened layer. In this paper, the effects of 3,3’-Dithiobis-1-propanesulfonic acid disodium salt (SPS), gelatin, and sodium thiazoline dithiopropane sulfonate (SH110) concentration on the morphology, roughness, and peel strength of HVLP copper foil was reported. The results show that SH110 contributes significantly to the reduction of copper foil roughness, improvement of peel strength, and refinement of coarsened layer grains. In addition, the linear scanning voltammetry and AC impedance spectroscopy of the solution were carried out to understand the action mechanism of additives on the copper foil surface. The results demonstrate that SPS promotes the copper deposition process due to the presence of sulfonic acid groups(–SO 3 ). The amino group(–NH 2 ) of gelatin inhibits copper deposition. SH110 has both promoter (Sodium 3-Mercapto-1-Propane Sulfonate, MPS) and inhibitor (Tetrahydrothiazolidinone, H1) fragments, which achieve synergistic or competitive effects consistent with the composite additive. Graphical abstract
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高影响因子
COLLOID AND POLYMER SCIENCE
·
2023
·Vol. 301
·期 8
·989-999
·
IF 2.4
Hu Tao,Xu Weichuan,Li Dong,Wang Song,Wang Yuxiang,Wu Caijin,Tan Liqiang
Extensive use of Al 2 O 3 nanoparticles in consumer and industrial products has led to concerns about their potential environmental impacts in the recent years. In most studies concerning Al 2 O 3 aggregation and disaggregation, more was to consider the single factor that influences their environmental behaviors. Understanding the combined abiotic factors that influence the fate, transport, and stability of nanoparticles in a complex aquatic system has become extremely important. Here, we reported and analyzed the major abiotic factors such as typical solution pH, electrolyte cations in different valences (Na + and Ca 2+ ), and the presence of humic acid (HA) that influence the stability, aggregation, and disaggregation behaviors of Al 2 O 3 nanoparticles in a complex aquatic system. Dynamic light scattering technique combined with fluorescence spectroscopic analysis was used to explore the aggregation mechanisms. Experimental results indicated that Al 2 O 3 nanoparticle stability was mainly controlled by the steric hindrance, van der Walls, and electrostatic interactions between HA and Al 2 O 3 nanoparticles. Aggregation kinetics and attachment efficiency studies induced by the addition of Na + and Ca 2+ cations confirmed that divalent electrolytes could reduce the large energy barrier between the charged colloidal particles more efficiently, and induce a more aggressive aggregation of the particles. Additionally, the bridging effect of HA with Ca 2+ was also an important mechanism for the aggregation enhancement, which had been confirmed by the fluorescence excitation-emission matrix (EEM) spectra analysis. These findings are useful in understanding the environmental challenges of inorganic colloidal particles in natural environments.
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 30
·75247-75261
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IF 5.8
Sun Qing,Hu Xiaofang,Zhao Yingjie,Zhang Jian,Sheng Jiawei
Dissolved antibiotics have been a research subject due to their widespread presence and potential threats in drinking water treatment. To enhance the photocatalytic activity of Bi 2 MoO 6 for the degradation of norfloxacin (NOR), the heterostructured Co 3 O 4 /Bi 2 MoO 6 (CoBM) composites were synthesized by employing ZIF-67-derived Co 3 O 4 on Bi 2 MoO 6 microspheres. The as-synthesized resultant material 3-CoBM by 300 °C calcination was characterized by XRD, SEM, XPS, transient photocurrent techniques, and EIS. The photocatalytic performance was evaluated by monitoring different concentrations, NOR removal from aqueous solution. Compared with Bi 2 MoO 6 , 3-CoBM exhibited the better adsorption and elimination capacity of NOR due to the combined effect between peroxymonosulfate activation and photocatalytic reaction. The influences of catalyst dosage, PMS dosage, various interfering ions (Cl − , NO 3 − , HCO 3 − , and SO 4 2− ), pH value, and type of antibiotics for application removal were also invested. By activating PMS under visible-light irradiation, 84.95% of metronidazole (MNZ) can be degraded within 40 min, and NOR and tetracycline (TC) can be completely degraded using 3-CoBM. Degradation mechanism was elucidated by quenching tests in combination with EPR measurement, and the degree of activity of the active groups from strong to weak is h + , SO 4 - •, and •OH, respectively. The degradation products and conceivable degradation pathways of NOR were speculated by LC-MS. In combination of excellent peroxymonosulfate activation and highly enhanced photocatalytic performance, this newly Co 3 O 4 /Bi 2 MoO 6 catalyst might be a promising candidate for degrading emerging antibiotic contamination in wastewater.
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高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-14
·
IF 16.6
Tang Xiaoduo,Ren Jingyan,Wei Xin,Wang Tao,Li Haiqiu,Sun Yihan,Liu Yang,Chi Mingli,Zhu Shoujun,Lu Laijin,Zhang Junhu,Yang Bai
Autologous skin flap transplantation is a common method for repairing complex soft tissue defects caused by cancer, trauma, and congenital malformations. Limited blood supply range and post-transplantation ischemia-reperfusion injury can lead to distal necrosis of the flap and long-term functional loss, which severely restricts the decision-making regarding the optimal surgical plan. To address this issue, we develop a hydrogel patch that releases carbon monoxide and nitric oxide gases on demand, to afford a timely blood supply for skin flap transplantation during surgery. Using an ischemia-reperfusion dorsal skin flap model in rats, we show that the hydrogel patch maintains the immediate opening of blood flow channels in transplanted tissue and effective blood perfusion throughout the perioperative period, activating perfusion of the hemodynamic donor site. We demonstrate that the hydrogel patch promotes distal vascularization and long-term functional reconstruction of transplanted tissues by inhibiting inflammatory damage and accelerating blood vessel formation.
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高影响因子
Food and Bioprocess Technology
·
2023
·
IF 5.6
Li Jiangfei,Zhou Yajun,Lu Weihong
Vacuum freeze drying (VFD) has been widely used for drying berries, by combining with pretreatment technology, energy consumption and cost can be effectively reduced as well as product quality improved. However, the effect of cold plasma pretreatment (CPP) on the drying efficiency and quality characteristics of VFD haskap has not been investigated. In this study, an innovative drying technology, cold plasma pretreatment–assisted vacuum freeze drying, was applied to process haskap. The purpose of the present study was to explore the effect of different times of CPP (0–75 s) on VFD haskap performance. The results indicated that the application of CPP enhanced the effective diffusion rate and drying rate (27.68%) owing to pretreatment etching larger and more cracks in the microstructure, increasing cell membrane permeability (15.59%), and altering cell wall pectin composition. Midilli is the most recommended model for drying kinetics. CPP contributed to increased hydrophilicity (25.33%) and degraded enzymatic activity, thereby prompting the enhancement of polyphenols, anthocyanins, flavonoids, and antioxidant capacity. Besides, the physico-chemical properties were ameliorated, the possible mechanism for the enhanced drying rate and quality properties of VFD haskap by CPP was explained by chemometrics. Overall, CPP is a promising pretreatment technology for haskap VFD.
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高影响因子
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