Polymers
·
2018
·Vol. 10
·期 4
·460
·
IF 2.935
Jing Yang,Yi Pu,Dagang Miao,Xin Ning
The surface treatment of fabrics in an atmospheric environment may pave the way for commercially viable plasma modifications of fibrous matters. In this paper, we demonstrate a durably superhydrophobic cotton cellulose fabric prepared in a single-step graft polymerization of hexamethyldisiloxane (HMDSO) by N2and O2atmospheric pressure plasma. We systematically investigated effects on contact angle (CA) and surface morphology of the cotton fabric under three operational parameters: precursor value; ionization gas flow rate; and plasma cycle time. Surface morphology, element composition, chemical structure and hydrophobic properties of the treated fabric were characterized by scanning electron microscope (SEM), EDS, FTIR and CA on the fabrics. The results indicated that a layer of thin film and nano-particles were evenly deposited on the cotton fibers, and graft polymerization occurred between cellulose and HMDSO. The fabric treated by O2plasma exhibited a higher CA of 162° than that treated by N2plasma which was about 149°. Furthermore, the CA of treated fabrics decreased only 0°~10° after storing at the ambient conditions for four months, and treated fabrics could also endure the standard textile laundering procedure in AATCC 61-2006 with minimum change. Therefore, this single-step plasma treatment method is shown to be a novel and environment-friendly way to make durable and superhydrophobic cotton fabrics.Keywords:atmospheric pressure plasma;durability;superhydrophobility;cotton fabric;siloxane
研究领域:
材料科学
·
纺织工程
·
表面化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
VACUUM
·
2024
·
IF 3.8
Yashuai Zhang,Gancheng Li,Xu Yang,Jingwen Cui,Wei Zhao,Qing Zhuo,Yuqi Wang,Zhuo Liu,Yingru Li,Jianfeng Tan
In this article, we demonstrate the application of an atmospheric pressure plasma brush (APPB) reactor for improving the hydrophobic properties of leather surfaces treated with organo-silane precursors for the first time. A comprehensive investigation was conducted to analyze the influence of various process parameters, including plasma access current, treatment duration, nozzle height, and gas flow rate, on the observed outcomes effects. The dispersion of active particles in the APPB was scrutinized using an Optical Emission Spectrometer (OES), while the underlying reaction mechanism was elucidated through the integration of Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), cross-sectional Transmission Electron Microscope (TEM) and Scanning Electron Microscope (SEM) analysis. The findings unveiled that the resultant polysiloxane polymers bestowed a remarkable degree of hydrophobicity upon the leather, persisting steadfastly even following a 90-day aging period (WCA >140°). This APPB treatment combined with organosilane strategy may open a new design avenue for the development of surface treatments for intricate and temperature-sensitive substrates materials.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
PLASMA SCIENCE & TECHNOLOGY
·
2021
·Vol. 23
·期 11
·115403
·
IF 1.567
Weisheng CUI,Qiaolu LIN,Hongbo LI,Shuai ZHAO,Yunge ZHANG,Yifan HUANG,Shuting FAN,Yiling SUN,Zhengfang QIAN,Renheng WANG
The formation of homogeneous dielectric barrier discharge (DBD) in air is a key scientific problem and core technical problem to be solved for the application of plasmas. Here, we report the effect of two-dimensional (2D) nanomaterial Ti3C2Tx (Tx = –F, –O and/or –OH) on regulating the electrical discharge characteristics. The field emission and weak bound state property of Ti3C2Tx can effectively increase the seed electrons and contribute to the generation of atmospheric pressure homogeneous air DBD. The electron avalanche development for the uneven electrode structure is calculated, and the discharge mode transition is modeled. The comparative analyses of discharge phenomena validate the regulation of Ti3C2Tx on the discharge characteristics of DBD. The light emission capture and the voltage and current waveforms verify that the transition of Townsend discharge to streamer discharge is effectively inhibited. The optical emission spectra are used to characterize the plasma and confirm that it is in a non-equilibrium state and the gas temperature is at room temperature. This is the first exploration of Ti3C2Tx on the regulation of electrical discharge characteristics as far as we know. This work proves the feasibility of Ti3C2Tx as a source of seed electrons to form homogeneous DBD, establishing a preliminary foundation for promoting the application of atmospheric pressure non-equilibrium plasma.
研究领域:
物理学
·
材料科学
·
等离子体科学
✓ 已验证
DOI
高影响因子
PLASMA SCIENCE & TECHNOLOGY
·
2019
·Vol. 22
·期 2
·025503
·
IF 1.193
Qunxia ZHANG,Cao FANG,Zhu CHEN,Qing HUANG
Fungal infection of human nails, or onychomycosis, affects 10% of the world's adult population, but current therapies have various drawbacks. In this work, we employed a self-made low-temperature plasma (LTP) device, namely, an atmospheric-pressure plasma jet (APPJ) device to treat the nails infected with Trichophyton rubrum (T. rubrum) with the aid of persulfate solution. We found that persulfate solution had a promoting effect on plasma treatment of onychomycosis. With addition of sodium persulfate, the APPJ therapy could cure onychomycosis after several times of treatment. As such, this work has demonstrated a novel and effective approach which makes good use of LTP technique in the treatment of onychomycosis.
研究领域:
医学
·
微生物学
✓ 已验证
DOI
高影响因子
Journal of Water Process Engineering
·
2023
·
IF 7
Ruixue Wang,Zhongwen Li,Xiaosen Li,Peiwen Guo,Haibo Wang,Xuan Guo,Jinyi Zhong
Atmospheric pressure plasma jet (APPJ), as an emerging clean and efficient technology, has been found a great potential for chemical warfare agents (CWAs) decontamination. In this study, we first proposed APPJ for the degradation of sulfur mustard (HD) and its surrogate 2-chloroethyl ethyl sulfide (2-CEES) in water. Under optimal conditions, the degradation efficiency of 2-CEES and HD reached 100 % after 5 min or 6 min plasma treatment. The degradation products of 2-CEES and HD were mainly non-toxic alcohols or low toxic sulfones, which can be degraded and converted into some small molecules (HCl, SO 2 , or CO 2 ) under further plasma treatment. We then identified two dominant short-lived reactive species (·OH and 1 O 2 ) and long-lived reactive molecule (H 2 O 2 ) and distinguished the effect of these three active particles during the degradation process of 2-CEES in water. This work provides detailed evidence of a novel decontamination strategy for HD and 2-CEES.
研究领域:
环境科学
·
化学工程
·
等离子体技术
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2023
·
IF 6.2
Chengfeng Xiong,Yu Wang,Liangliang Lin,Ming Gao,Yifan Huang,Paul K Chu
The increasing demand for flexible electronics has spurred the development of flexible substrates with high thermal conductivity . Herein, nanocomposite coatings based on aluminum nitride (AlN) and siloxane matrix are deposited on polyimide (PI) films by atmospheric pressure plasma for improved thermal conductivity. Commercially available aluminum nitride powders are incorporated into methyltrimethoxysilane (MTMS) precursor to form nanocomposite coatings at atmospheric pressure. The evolution of the as-prepared coatings is systematically investigated upon the variations of the deposition time. The smooth surface is transformed into a rough surface with spherical nanoparticles , and the silicon containing functional groups with AlN nanoparticles are introduced into the surface. After 6 min deposition, the surface energies of the PI film can be improved to 32.8 mJ/m 2 , and the thermal conductivity can be enhanced to 1.68 W/mK with a coating hardness of 2H. The results demonstrate that the nanocomposite coatings prepared by plasma deposition are an efficient way to modify flexible materials with improved thermal conductivity.
研究领域:
材料科学
·
柔性电子学
✓ 已验证
产品关联
DOI
高影响因子
Applied Surface Science Advances
·
2024
·
IF 7.5
Chengfeng Xiong,Ming Gao,Hao Huang,Yu Wang,Xiaobin Gu,Zilan Xiong,Yifan Huang
In this study, surface modification of basalt fibers (BFs) utilizing atmospheric pressure plasma deposition was carried out. Using this one-step deposition approach, three siloxane precursors with different structures including methyltrimethoxysilane (MTMS), hexamethyldisiloxane (HMDSO), and tetramethoxysilane (TMOS) were deposited on BFs surface, respectively. The physicochemical properties of the thin films from three different siloxane compounds are elucidated. In comparison with MTMS-coated sample, HMDSO-coated and TMOS-coated BFs surfaces feature an improved thermal insulation performance. The results demonstrate that atmospheric pressure plasma deposition is an efficient approach to modify flexible materials surface with improved thermal insulation. Moreover, it provides a reference to decide which precursor type is preferred for certain applications.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHYSICS D-APPLIED PHYSICS
·
2022
·Vol. 55
·期 48
·485202
·
IF 3.409
Kun Liu,Xiaohan Zhang,Xiongfeng Zhou,Xinming Huo,Xiaohao Wang,Kostya (Ken) Ostrikov
This work reported an air atmospheric pressure plasma jet served as an ion source for nonvolatile solid analysis, which allows a unique capability to achieve thermal desorption and ionization simultaneously without complex devices, inert gas, or solvents. Owing to precise amount of heat generated by plasma jet, nonvolatile analytes were thermally released from solid surfaces without the assistance of secondary desorption equipment. According to the mass spectra and Fourier transform infrared spectrum, [M + H]+ and [M + NO3]− ions were the major analyte ions in the positive-ion and negative-ion modes, respectively. The applied voltages, discharge currents, and gas temperatures of plasma jet were measured, and found to be positively correlated with the mass spectra signal intensity of the samples, while the added resistances and gas flow rate were negatively correlated with the signal intensity. The influence mechanisms of analytes natures coupling physical parameters of plasma jet on detection performance were revealed. The prospect of quantitative testing was confirmed by the linear relationship between the peak intensity and sample mass.
研究领域:
分析化学
·
质谱技术
·
等离子体科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2025
·
IF 8.4
Xiaopeng Zhai,Jie Gao,Siyi Jing,Pengcheng Xia,Qi Xu,Ming Zhang,Weichuan Qiao
The plasma plume generated by atmospheric pressure plasma jet (APPJ) can directly oxidize and decompose the sludge on the membrane surface in membrane bioreactor (MBR), and simultaneously modify the membrane surface, thus achieving the objective of membrane cleaning. Compared with NaClO cleaning, APPJ cleaning showed stronger performance in reducing membrane fouling. Furthermore, the average membrane fouling period using NaClO cleaning was 2.5 days, while that of APPJ cleaning increased to 3 days. The average total flux recovery ratio of the membrane after APPJ cleaning reached 85.6 %, which was higher than the 73.4 % after NaClO cleaning. The atmospheric pressure plasma plume could directly blow away the sludge on the membrane surface. Plasma generated reactive species, such as free radicals (•OH), H 2 O 2 and O 3 to destroy cells and decompose extracellular polymers into small molecules. Meanwhile, the reactive species degraded β-D-glucose polysaccharide and caused the cake layer on the membrane to be looser. APPJ cleaning could degrade signal molecules C6-HSL in the cake layer, thereby maintaining C8-HSL at low levels. In addition, the direct scanning of the plasma jet to the membrane resulted in a more hydrophilic, smoother, and more electronegative surface, which increased the anti-fouling performance of the membrane.
研究领域:
环境工程
·
水处理技术
✓ 已验证
DOI
PubMed
高影响因子
PLASMA SCIENCE & TECHNOLOGY
·
2023
·Vol. 25
·期 8
·084001
·
IF 1.7
Penghao ZHANG,Liang YU,Dazhao HE,Xinyu TANG,Shuo CHEN,Shoulong DONG,Chenguo YAO
The surface charge accumulation on polymers often leads to surface flashover. Current solutions are mainly based on the introduction of inorganic fillers. The high-cost process and low compatibility remain formidable challenges. Moreover, existing researches on all-organic insulation focus on capturing electrons, contrary to alleviating charge accumulation. Here, an all-organic modification coating was prepared on polystyrene (PS) with the large-scale atmospheric-pressure plasma, which exhibits outperformed function in mitigating surface charge accumulation. The surface charge dissipation rate and surface conductivity are promoted by about 1.37 and 9.45 times, respectively. Simulation and experimental results show that this all-organic modification coating has a smaller electron affinity potential compared with PS. The decrease of electron affinity potential may result in accelerated surface charge decay of PS, which has never been involved in previous works. Moreover, this coating also has good reliability in a repeated surface flashover. This facile and large-scale approach brings up a novel idea for surface charge regulation and the manufacture of advanced dielectric polymers.
研究领域:
材料科学
·
电气工程
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
·Vol. 48
·期 17
·7669-7675
·
IF 2.7
Liyuan Zheng,Yakun Song,Kerong Li,Lingyu Zhang,Yuexiang Lu,Shuang Liu,Zhe Wang,Xiangke Wang
It is necessary to develop methods for rapid degradation of untreated waterborne contaminants due to their serious impact on the environment and human health. Here, we proposed a rapid and efficient microplasma electrochemistry (MIPEC) method for organic dye and antibiotic degradation. The atmospheric-pressure plasma acted as the anode and it could generate reactive radicals for rapid and complete degradation of rhodamine B (RhB) in about 6 min, which is one of the fastest methods to our knowledge. Similarly, the degradation of ciprofloxacin (CIP) has also been achieved. This method with mild and convenient operation conditions could be applied in a wide pH range due to the unique properties of the plasma anode, unrestricted by the pH of wastewater. The mechanism study revealed that more reactive species could be generated at the plasma anode than at the cathode, leading to a faster reaction rate at the anode side and the presence of oxygen could also accelerate the generation of reactive species. Besides, the MIPEC method can be used to treat a variety of dyes separately and together in minutes in different water bodies, making it a universal method suitable for treating different dyes in wastewater. This work provides a rapid and efficient method for waterborne contaminant degradation without any secondary pollution and need for post treatment, and also broadens the application field of the MIPEC method.
研究领域:
环境科学
·
化学工程
·
水处理技术
✓ 已验证
产品关联
DOI
高影响因子
WATER RESEARCH
·
2020
·
IF 9.13
Hangbo Xu,Yupan Zhu,Mengru Du,Yuqi Wang,Siyao Ju,Ruonan Ma,Zhen Jiao
Although the identification of effective reactive oxygen species (ROS) generated by plasma has been extensively studied, yet the subcellular mechanism of microbial inactivation has never been clearly elucidated in plasma disinfection processes. In this study, subcellular mechanism of yeast cell inactivation during plasma-liquid interaction was revealed in terms of comprehensive factors including cell morphology, membrane permeability, lipid peroxidation, membrane potential, intracellular redox homeostasis (intracellular ROS and H 2 O 2 , and antioxidant system (SOD, CAT and GSH)), intracellular ionic equilibrium (intracellular H + and K + ) and energy metabolism (mitochondrial membrane potential, intracellular Ca 2+ and ATP level). The ROS analysis show that ·OH, 1 O 2 , ·O 2 − and H 2 O 2 were generated in this plasma-liquid interaction system and ·O 2 − served as the precursor of 1 O 2 . Additionally, the solution pH was reduced. Plasma can effectively inactivate yeast cells mainly via apoptosis by damaging cell membrane, intracellular redox and ion homeostasis and energy metabolism as well as causing DNA fragmentation. ROS scavengers ( l -His, d -Man and SOD) and pH buffer (phosphate buffer solution, PBS) were employed to investigate the role of five antimicrobial factors (·OH, 1 O 2 , ·O 2 − , H 2 O 2 and low pH) in plasma sterilization. Results show that they have different influences on the aforementioned cell physiological activities. The ·OH and 1 O 2 contributed most to the yeast inactivation. The ·OH mainly attacked cell membrane and increased cell membrane permeability. The disturb of cell energy metabolism was mainly attributed to 1 O 2 . The damage of cell membrane as well as extracellular low pH could break the intracellular ionic equilibrium and further reduce cell membrane potential. The remarkable increase of intracellular H 2 O 2 was mainly due to the influx of extracellular H 2 O 2 via destroyed cell membrane, which played a little role in yeast inactivation during 10-min plasma treatment. These findings provide comprehensive insights into the antimicrobial mechanism of plasma, which can promote the development of plasma as an alternative water disinfection strategy.
研究领域:
微生物学
·
等离子体物理
·
环境科学
·
细胞生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）