INORGANIC CHEMISTRY COMMUNICATIONS
·
2022
·
IF 3.428
Jiyan Wei,Xiaoquan Li,Fuping Bian,Jun Zeng,Jiwen Hu,Tongqiang Zong,Na Li,Shudong Lin
High purity silver nanowires (AgNWs) have received a lot of attention from researchers in the field of conductive materials. Conventional polyol synthesis method of AgNWs inevitably leads to the formation of byproduct such as silver nanoparticles. These silver nanoparticles weaken the performance of AgNWs-based flexible displays and must be cleaned up by the purification steps. In this article, we reported a facile and simple method for the synthesis of high purity AgNWs with aspect ratio over 1500 by a one-pot polyol method using silver chloride (AgCl) suspension as nucleating agents via a heterogeneous nucleation mechanism. The process of AgNWs formation was revealed by characterizing UV–vis absorption spectra at different reaction steps, then the process of AgNWs growth from nucleating agents was hypothesized. The reaction temperature and the amounts of AgCl suspension were discussed to investigate their effect on morphology of AgNWs. The high purity silver nanowires prepared via this way are ideal materials for flexible transparent conductive films and will be widely used in flexible displays, solar cells and sensors.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2017
·
IF 4.233
Xiaojuan Zhao,Xiang Lv,Hongda Cui,Tianhe Wang
We report a novel technique to fabricate bismuth stannate/silver@silver chloride (Bi 2 Sn 2 O 7 /Ag@AgCl) films on conventional glass substrates . The film exhibited a remarkable self-cleaning capability against organic dyes under visible light . Porous Bi 2 Sn 2 O 7 (BSO) film was first sintered on a glass substrate, followed by implantation of AgCl in it and photo-induction to produce Ag@AgCl. The degradation of organic dyes and photoelectrochemical studies indicate that, compared with BSO film, Bi 2 Sn 2 O 7 /Ag@AgCl film had a much improved photocatalytic ability, probably due to the enhanced electron transfer efficiency and synergistic effect of visible light absorption of the two semiconductors. The possible mechanism of this marked improvement was investigated and interpreted in terms of electrons and holes separation efficiency and charge circulation routes at the interfaces within the Bi 2 Sn 2 O 7 /Ag@AgCl composite film . The film provided in this study may well have practical applications due to its simplicity of preparation, excellent photocatalytic ability and reasonable stability.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2015
·Vol. 132
·期 25
·
IF 1.768
Xiaoqin Chen,Bojian Hu,Xiaodong Xing,Zuliang Liu,Yan Zuo,Qian Xiang
In this article, we present a simple method for synthesizing antibacterial cellulose fibers that were modified with a cationic polymer and immobilized silver chloride (AgCl) particles. Relatively simple techniques of graft polymerization and onsite precipitation were used to fabricate the composites. Scanning electron microscopy images, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and energy-dispersive X-ray spectroscopy confirmed the immobilization of the AgCl particles. The observed inhibition zone of the immobilized AgCl particle composites indicated that the biocidal silver ions were released from the composites in aqueous solution. Compared with cationic-polymer-grafted cellulose fibers or AgCl alone, the cationic polymer/AgCl composites showed excellent antibacterial activity against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus . © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42092.
研究领域:
材料科学
·
生物学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2017
·
IF 6.32
Min Liu,Liyan Zhang,Yue Hua,Luping Feng,Yao Jiang,Xiju Ding,Wei Qi,Hua Wang
Mesoporous silver–melamine (Ag–MA) nanocomposites were synthesized simply by the controlled supermolecular self-assembly process to be modified onto the electrodes for the electroanalysis of multiple sulfides in blood or wastewater. It was discovered that Ag–MA nanocomposites could be prepared with various morphological structures depending on the Ag-to-MA ratios. Furthermore, the electrodes modified with mesoporous Ag–MA nanowires could display stable and sharp electrochemical peaks of solid-state AgCl at a considerably low potential approaching zero, thus circumventing any interference from possibly coexisting electroactive substances in the background. More importantly, the yielded AgCl signals would decrease selectively induced by sulfides through the specific sulfide–chloride replacement reactions toward the transferring of AgCl into non-electroactive Ag2S. The developed electroanalysis strategy could facilitate the selective detection of multiple sulfides (i.e., S2– or H2S, Sx2–, cysteine, and S2O32–) in the complicated media with high-level salts such as blood and wastewater, showing a linear concentration range from 0.50 to 512 μM as exemplified for S2– ions in blood. Such an electroanalysis device equipped with the portable electrochemical transducer can be tailored for the field-deployable monitoring of a variety of sulfides in clinical and environmental analysis fields.
研究领域:
材料科学
·
分析化学
·
环境科学
·
医学诊断
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jing Sun,Yalei Mei,Weiliang Bai,Li Han,Yuqiang Li,Yuzhong Gao,Ming-Fei Lang,Hongsheng Xue
Flexible sheet reference electrodes play a crucial role in both flexible electrochemical biosensors and electrophysiological monitoring. Enhancing electrode stability and extending continuous operational lifespan are key issues in the research of flexible sheet reference electrodes. In this study, a novel flexible Ag/AgCl sheet reference electrode was fabricated by semi-embedding nano-silver dendrites within a polydimethylsiloxane (PDMS) matrix. The flexible Dendritic Ag/AgCl quasi-reference electrodes showed comparable stability of open circuit potential to commercial glass reference electrodes, with a single continuous stable operation time exceeding 12 h and sustained stable operation for at least 30 days when operated continuously for 1 h per day. Additionally, the shelf life was significantly extended to at least 1 year. An in-depth exploration of its mechanism reveals that the embedding strategy plays a crucial role. It strengthens the tight connections between silver dendrites, forming a robust and stable conductive network that ensures rapid and stable charge transfer. Furthermore, the strong adhesion between silver dendrites and PDMS greatly enhances its mechanical durability. This electrode exhibits high practical value in electrophysiological monitoring such as electroencephalogram and electrocardiogram, as well as in flexible sensor applications for H 2 O 2 sensing in pleural effusions, opening new pathways for advancements in flexible wearable devices and biomedical sensor technologies.
研究领域:
生物医学工程
·
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2018
·Vol. 34
·期 3
·495-499
·
IF 1.248
Li Xianliang,Shi Zuosen,Cui Zhanchen,Zhu Song
Hollow mesoporous silica particles(HMSPs) were prepared by using polystyrene microspheres as a template and loaded with silver chloride(AgCl) to act as antibacterial agents. The HMSPs possess radially oriented pore channels and a high loading amount of AgCl. The AgCl loaded HMSPs were then dispersed in hybrid coatings with different mass ratios to fabricate antibacterial coatings. The antibacterial activities of the coatings were tested against Candida albicans (ATCC 10231) and Streptococcus mutants (ATCC 25175). The resulting antibacterial coatings exhibited high antibacterial activities, high hardness, and acceptable adhesion to the substrate.
研究领域:
材料科学
·
生物学
·
牙科医学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2015
·
IF 3.368
Shutao Gao,Tao Feng,Cheng Feng,Ningzhao Shang,Chun Wang
In this paper, a novel visible-light responsive photocatalyst of Ag/AgCl@MIL-101 was synthesized via vapor diffusion-photoreduction strategy. The as-prepared composite material was characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, ultraviolet–visible diffuse reflection spectra and X-ray photoelectron spectroscopy. Due to the synergistic effect between Ag/AgCl and MIL-101, the composite photocatalyst exhibited an enhanced and stable photoactivity for the degradation of Rhodamine B under visible light irradiation. The relationship between the photocatalytic activity and the structure of Ag/AgCl@MIL-101 hybrid material was discussed and the possible reaction mechanism was proposed.
研究领域:
材料化学
·
环境催化
·
纳米材料
·
光催化
·
多孔框架材料
✓ 已验证
DOI
高影响因子
Advanced Composites and Hybrid Materials
·
2021
·Vol. 5
·期 1
·220-228
·
IF 5.693
Huang Kun,Liu Junchen,Lin Sen,Wu Yufeng,Chen Enfu,He Zhaofeng,Lei Ming
Electrocardiogram (ECG) can reflect the function of human heart in real time and is of great significance in the diagnosis of cardiovascular diseases. One of the biggest challenges of existing ECG electrodes is the incompatibility between user experience and long-term monitoring. In this study, we developed an easily fabricated, flexible, biocompatible, gel-free silver nanowires (AgNW)/polyvinyl butyral (PVB)/hydrophilic polyurethane (PU) sponge (AgPHPUS) ECG electrode, which can be used for long-term ECG monitoring and avoid skin irritation. Furthermore, the electrodes, which incorporate fractal-based conductive patterns into skin-friendly elastomers, maintain excellent mechanical and electrical stability within the limits of human skin stretching. Most importantly, the ECG signal collected by the AgPHPUS electrodes during long-term and repeated use is as accurate as that collected by the commercial Ag/AgCl electrodes. All these indicate that the new electrode can replace traditional electrode for long-term ECG monitoring.
研究领域:
生物医学工程
·
材料科学
·
心血管疾病诊断
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Gongduan Fan,Rongsheng Ning,Zhongsen Yan,Jing Luo,Banghao Du,Jiajun Zhan,Lingshan Liu,Jin Zhang
Antibiotic contamination is increasing scrutinized recently. In this work, the Ag−AgCl/WO 3 /g-C 3 N 4 (AWC) nanocomposites were successfully synthesized using a two-step process involving electrostatic self-assembly and in-situ deposition for trimethoprim (TMP) degradation. The as-prepared photocatalysts were investigated and characterized by XRD, FTIR, XPS, TGA, SEM, TEM , UV–vis, PL and EIS. The experimental results indicated that 99.9% of TMP (4 mg/L) was degraded within 60 min when the concentration of AWC was 0.5 g/L. Reactive species scavenging experiments and electron spin resonance (ESR) experiments illustrated that superoxide radical (•O 2 − ) and photogenerated holes (h + ) were the main active species. The functional theory calculation and identification of intermediates via HPLC-MS revealed the possible degradation pathways of TMP. A double photoelectron-transfer mechanism in AWC photocatalyst was proposed. Five cycling photocatalytic tests and reactions under different solution matrix effects further supported that the AWC was a promising photocatalyst for the removal of TMP from the aquatic environment.
研究领域:
环境科学
·
材料科学
·
生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Catalysis Science & Technology
·
2020
·Vol. 10
·期 24
·8230-8239
·
IF 5.721
Haiqin Lv,Yanyan Duan,Xin Zhou,Guimei Liu,Xin Wang,Yuanhao Wang,Mingzhe Yuan,Qingguo Meng,Chuanyi Wang
The abuse of tetracycline antibiotics (TCs) has created great threats to both human health and the ecosystem. Therefore, developing efficient technologies to remediate these contaminants is of significant and practical interest. In this work, a ternary plasmonic Ag/AgCl@In2O3 nanocomposite was synthesized by growing AgCl on the surface of one-dimensional In2O3 nanorods, followed by the in situ photoreduction of Ag from AgCl on AgCl@In2O3. The as-synthesized Ag/AgCl@In2O3 nanocomposite exhibits excellent performance for the photocatalytic degradation of tetracycline (TTC) with a degradation rate constant of 0.166 min−1, which is much better than that of pristine In2O3, Ag@In2O3, AgCl@In2O3, Ag/AgCl, and In2O3 + Ag/AgCl (the mechanical mixture of In2O3 and Ag/AgCl) samples. Five photocatalytic cycling tests demonstrate that Ag/AgCl@In2O3 possesses outstanding stability. In addition, Ag/AgCl@In2O3 also exhibits excellent photo-activity for the degradation of other types of tetracycline antibiotics, e.g. chlortetracycline (CTC) and oxytetracycline (OTC). Further trapping experiments prove that h+ and ˙O2− are responsible for the photocatalytic reactions. The enhancement in the photoactivity of the Ag/AgCl@In2O3 system is largely due to the surface plasmon resonance effect (SPR) provided by the Ag nanoparticles, which inject electrons into AgCl and/or In2O3, and the efficient separation of photoinduced carriers is possible by transferring electrons to the conduction band of In2O3. This work provides a new type of photocatalyst towards the effective treatment of tetracycline antibiotics in aqueous systems.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2021
·Vol. 11
·期 8
·1962
·
IF 5.076
Lingjun Li,Guangli Li,Yuliang Cao,Yvonne Yanwen Duan
High-definition transcranial direct current stimulation (HD-tDCS) is a promising non-invasive neuromodulation technique, which has been widely used in the clinical intervention and treatment of neurological or psychiatric disorders. Sintered Ag/AgCl electrode has become a preferred candidate for HD-tDCS, but its service life is very short, especially for long-term anodal stimulation. To address this issue, a novel highly durable conductive carbon/silver/silver chloride composite (C/Ag/AgCl) electrode was fabricated by a facile cold rolling method. The important parameters were systematically optimized, including the conductive enhancer, the particle size of Ag powder, the C:Ag:PTFE ratio, the saline concentration, and the active substance loading. The CNT/Ag/AgCl-721 electrode demonstrated excellent specific capacity and cycling performance. Both constant current anodal polarization and simulated tDCS measurement demonstrated that the service life of the CNT/Ag/AgCl-721 electrodes was 15-16 times of that of sintered Ag/AgCl electrodes. The much longer service life can be attributed to the formation of the three-dimensional interpenetrating conductive network with CNT doping, which can maintain a good conductivity and cycling performance even if excessive non-conductive AgCl is accumulated on the surface during long-term anodal stimulation. Considering their low cost, long service life, and good skin tolerance, the proposed CNT/Ag/AgCl electrodes have shown promising application prospects in HD-tDCS, especially for daily life scenarios.
研究领域:
神经科学
·
生物医学工程
·
材料科学
✓ 已验证
DOI
高影响因子
Desalination and Water Treatment
·
2024
·
IF 1
Hao Li,Dongbing Cheng,Lingyao Dong,Feng Qian
Membrane fouling, especially bio-fouling, limits the further development of thin film composite (TFC) aromatic polyamide reverse osmosis (RO) membranes. In the current study, a simple method (the alternative soaking surface mineralization technique) was used to deposit AgCl particles onto surfaces of commercial RO membranes to enhance its antibacterial performance and permselectivity simultaneously. Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) confirmed the deposition of AgCl particles on the surface of the modified membranes. Characterization of membrane surface showed the modification enhanced the hydrophilic of membrane surfaces, made the membrane surfaces more negatively charged and did not influence the membrane surface roughness. Under RO operation, the modification improved the membrane flux and salt rejection. Membrane fouling test showed the modified membranes had slower water flux decline rate and higher water flux recovery rate. Membrane antibacterial test showed the death rates of Escherichia coli after contacting with modified membranes were much larger than that after contacting with the unmodified membrane.
研究领域:
膜科学与技术
·
环境工程
·
材料科学
·
水处理技术
·
纳米材料应用
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）