ACS Applied Nano Materials
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2022
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IF 6.14
Xue Wang,Li-Yuan Wang,Cheng-Bao Yao,Ze-Miao Wang,Yu Liu,Cai-Hong Jiang
The metal/metal oxide semiconductor materials with special photoelectric properties have been widely used for the development of novel photoelectric devices. However, electron transfers at the interfaces of metal and metal oxide are unclear under a photoexcitation process. Herein, the pure WO3 nanorods and Ag nanoparticles (NPs)-loaded WO3 (AWO) nanorods were synthesized by a hydrothermal technique and a two-step method, which includes hydrothermal and magnetron processes. Their corresponding electron excitation and relaxation properties have been revealed by absorption/emission spectra and transmission curves under nonlinear excitation of an ultrafast laser. The dependence relationship for the morphology and structure of one-dimensional (1D) WO3 nanomaterial orientation on the parameters’ adjustment (reaction time and reactant concentration) and formation mechanism was studied. The 1D WO3 nanomaterials show obvious longitudinal growth in the (200) orientation, as well as lateral growth in the (001) and (110) orientations. The size and distribution effects of Ag NPs on the optical properties of WO3 have also been investigated. On the basis of quantum particle coupling between metal (Ag) and metal oxide materials (WO3 nanorods), electron–hole pairs were generated in the semiconductor and strongly enhanced the radiative recombination. The Z-scan results illustrated that the maximum nonlinear absorption coefficient of the AWO (6 W) nanorods was obtained. When charge transfer happens in Ag NPs, the density of the electronic states in the excited/defect states of the WO3 can be regulated. For AWO nanorods, the ground state of Ag undergoes a saturation absorption process and results in reverse saturation absorption of the excited/defect states. Because of their remarkable nonlinear-optical properties, the proposed AWO nanorods will be potential nanocomposite materials for the development of nonlinear absorption modulator devices.
研究领域:
材料科学
·
光学
·
物理化学
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DOI
高影响因子
Materials Today Energy
·
2020
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IF 5.604
Chaohu Xiao,Weidong Liang,Qi-Meige Hasi,Lihua Chen,Jingxian He,Fang Liu,Chengjun Wang,Hanxue Sun,Zhaoqi Zhu,An Li
Solar steam generation is one of the most promising technologies to utilize solar energy, which is applied to extract fresh water from seawater or contaminated water. However, solar vapour generation is usually restricted to the underutilization of solar energy or depends on complicated light-harvesting adjuncts. Here, a novel hierarchically double-layered evaporation device was demonstrated based on poly(ionic liquid)s hydrogel with the upper surface co-modified by polypyrrole (PPy) and silver particles (named as Ag/PPy-PMBA-BrILs). The evaporation system exhibits a cooperative interaction of the double-layer with efficient light-absorbing and water transportation, leading to a high evaporation rate of 1.37 kg m −2 h −1 with a photothermal conversion efficiency of 88.7% under 1 sun illumination. The high evaporation rate is mainly due to the synergistic light absorption of polypyrrole and silver particles as well as the excellent water transfer capability of poly(ionic liquid)s hydrogel. Moreover, the hydrogel-based evaporation device also exhibits excellent salt-resistant performance for solar desilination in artificial sea water. The high-efficiency poly(ionic liquid)s hydrogel based solar steam generator with co-modified light-absorbing surface may open new opportunities for the future design and fabrication of high-performanced solar steam generator for practical applications.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
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2019
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IF 2.291
Kai-Sheng Yao,Hai-Li Zhao,Nan Wang,Tian-Jin Li,Shuang Zhao,Wei-Wei Lu
The ultra-large, single-crystal Ag nanosheets and their assembled films can be easily one-pot prepared at room temperature via a chloroform-water interfacial reaction route with o -ethoxyaniline (OEA) in chloroform as reductant and AgNO 3 in water as precursor. The as-obtained single-crystal Ag nanosheets can reach as large as 16 μm in side length and as thin as 22 nm in thickness. The results show that reagent concentrations, temperature and organic phase in current liquid-liquid reaction have significant influences on the formation of Ag sheet-like nanostructures . The possible mechanism was proposed for the growth and formation of Ag nanosheets and their assembled films. Furthermore, using p -aminothiophenol (PATP) as a model molecular probe , the Ag nanosheet-assembled films exhibit outstanding surface-enhanced Raman scattering (SERS) response and high reproducibility.
研究领域:
材料科学
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纳米技术
·
化学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
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IF 4.4
Zuo Guangling,Ye Hongyong,Du Jia,Ding Xin
A ternary Ag/Bi 2 O 3 /g-C 3 N 4 (Ag/BO/CN) photocatalyst was fabricated through a combined solvothermal and photochemical reduction approach for the degradation of ciprofloxacin hydrochloride (CIP). Upon illumination with simulated sunlight, the optimized Ag/BO/CN composite efficiently degraded CIP, resulting in near-complete (98.14%) removal within 100 min. This remarkable property is attributed to a synergetic interaction between the Ag surface plasmon resonance (SPR) effect and the S-scheme heterojunction (between BO and CN). In-situ XPS analysis and work function ( Φ ) calculations confirmed the S-scheme charge migration pathway. In this scheme, an internal electric field (IEF) prompts the reunification of less-reactive charge carriers, thereby selectively retaining the highly reductive electrons (e − ) in the conduction band (CB) of CN and the strongly oxidative holes (h + ) in the valence band (VB) of BO. Quenching experiments and electron spin resonance (ESR) spectroscopy identified superoxide radicals (·O 2 − ) and hydroxyl radicals (·OH) as the primary reactive intermediates. Moreover, the catalyst shows considerable promise for practical deployment, as evidenced by its excellent stability over four consecutive cycles and sustained degradation performance across various real water systems. Graphical abstract The alternative text for this image may have been generated using AI.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Bai Haoshen,Chen Liyan,Jiao Wenxin,Zhang Ganghua,Kong Demei,Li Dezeng
Silver nanowires (AgNWs) are regarded as a new generation of photoelectric material for transparent conductive films (TCFs) to replace indium tin oxide (ITO), on account of their superior conductivity, flexibility and stability. However, challenges still remain in the applications of AgNW-based TCFs to realize a combined enhancement of both transmission and conductivity. Herein, three types of AgNWs–ZnO composite TCFs were specifically designed to improve photoelectric properties. Through employing structurally controllable ZnO modifications on AgNWs, the contact architecture between AgNWs was optimized, enhancing optical performance and electron transport within the network. The results show that: (1) AgNWs/ZnO (Type-Ⅰ) with AgNWs deposited on a ZnO-nanoparticle (NP) film reaches a sheet resistance of 27.6 Ω·sq −1 at a transmittance of 90.68%; (2) AgNWs@ZnO (Type-Ⅱ) with AgNWs encapsulated by ZnO NPs reaches 20.6 Ω·sq −1 at 87.59%; (3) AgNWs⊥ZnO (Type-Ⅲ) with AgNWs integrated with ZnO nanotrees (NTs) achieves 44.0 Ω·sq −1 at 89.60%. Furthermore, Type-Ⅰ TCFs show excellent photocatalysis, interfacial hydrophilicity, and flexibility. The comprehensive multifunctionality of AgNWs–ZnO composite TCFs proves the great potential for their development. Graphical abstract The alternative text for this image may have been generated using AI.
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DOI
高影响因子
ACS Applied Bio Materials
·
2026
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IF 5.6
Jun Ge,Xuechao Shi,Shuxian Hou,Yimei Wang,Xin Zhou,Yuhan Ji,Zhiru Tao,Xinxin Liu,Yaqi Cheng,Shujie Li,Yao Xiao,Ye Hong,Zuchun Zhao,Fei Ge,Jun Wang
The proliferation of drug-resistant bacteria in water poses a significant public health threat. Experimental wastewater from microbiology laboratories and residual fluids in medical catheters are particularly prone to pathogenic bacterial growth and biofilm formation. This challenge requires antibacterial agents that can eliminate pathogenic bacteria with high efficiency. In this study, core–shell Ag@Fe3O4 NPs were synthesized via a straightforward solvothermal method. This structuration minimizes silver ion loss and ensures sustained antibacterial activity through core–shell synergy. Mechanistic studies revealed that Ag@Fe3O4 disrupts biofilm architecture and induces nucleic acid leakage via the synergistic release of Ag+ ions and the generation of reactive oxygen species (ROS). Significantly, Ag@Fe3O4 NPs exhibit superparamagnetic properties and demonstrate a low minimum inhibitory concentration (MIC) of 10 μg/mL. In water treatment simulations, Ag@Fe3O4 NPs maintained a 100% pathogen elimination rate across diverse environmental conditions after 40 magnetic recovery cycles. Furthermore, the Ag@Fe3O4 NPs achieved precise targeting and efficient removal of biofilms in a medical catheter model under magnetic guidance. Ag@Fe3O4 NPs offer an efficient and sustainable solution for eradicating waterborne pathogens and eliminating medical catheter biofilms.
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产品关联
DOI
高影响因子
JOURNAL OF THE TEXTILE INSTITUTE
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2019
·
IF 1.063
Hongbin Li,Yan Zhuang,Hao Li,Karen Chávez Bracamontes,Dawei Wang,Ying Sun,Dan Sun,Lingping Kong,Shuzhen Gao,Mizhao Song
Surface modification is an important element of textile manufacturing. The SiO2/Ag sol–gel was coated on the cotton/linen fabric by a simple two-dipping-two-rolling coating machine. SEM, Zeta-potential, (ATR)-FTIR and XRD, physical properties, water-droplet adsorption, antibacterial performance and water-resisting property have been adopted as the characterization techniques. The Zeta-potential showed that the nano-Ag particles affected the size of SiO2 nanoparticles. The results showed that antibacterial activity and hydrophobic property of cotton/linen fabric increased with the increasing concentration of the AgNO3. Air permeability was not decreased considerably, whereas tensile strength was increased significantly after coating twice. The SiO2/Ag coating cotton/linen fabric had an excellent antibacterial performance. Our results demonstrate that this SiO2/Ag coated cotton/linen fabric is a step towards better hydrophobic performance of textile materials.
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DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
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2026
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IF 4.9
Chenyang Guo,Jianli Jiang,Haigang Hou,Jian Yang,Dongliang Zhang,Quanjiang Lv,Junlin Liu,Guanjun Qiao
Photothermoelectric (PTE) detectors, characterized by self-powered operation and broadband response, represent a promising alternative to conventional photodetectors. However, achieving efficient photothermal conversion and thermoelectric response within a single material remains a key challenge. In this work, we successfully constructed a flexible Ag 2 Te@Ag composite film of Ag 2 Te nanowires (NWs) decorated with Ag nanoparticles (NPs), which exhibits a pronounced PTE effect. The Ag NPs act as plasmonic nanoheaters, significantly enhancing light absorption and local heat generation through localized surface plasmon resonance, while the porous Ag 2 Te NW network serves as an efficient thermoelectric scaffold with low lattice thermal conductivity and optical absorption cavity. As a result, this Ag 2 Te@Ag film achieves a remarkable temperature difference of 73.4 K and a corresponding photovoltage of 1.41 mV under 450 nm laser irradiation, with a maximum responsivity of 17.17 mV W −1 across the 380–1550 nm range. The device operates in a fully self-powered mode, exhibiting fast response, excellent output linearity, and outstanding mechanical flexibility with negligible degradation of properties after 200 bending cycles. This work provides a viable strategy for developing high-performance, flexible PTE detectors for wearable optoelectronics and energy harvesting.
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产品关联
DOI
高影响因子
CHEMICAL PHYSICS LETTERS
·
2013
·
IF 2.145
Yanling Liu,Feng Song,Jiadong Liu,Jun Zhang,Yin Yu,Hongyan Zhao
The enhanced luminescences of Er 3+ /Yb 3+ co-doped Y 2 Ti 2 O 7 films were demonstrated when silver/gold (Ag/Au) nanoparticles (NPs) were doped in the films. With the precipitation of the Ag nanoprisms, more intense green (525 nm, 546 nm), red (659 nm) upconversion (UC) emission bands and strong enhanced near infrared (NIR) emission were observed and the enhanced factors were up to 16.7, 15.6, 17.7 and 5.6 folds, respectively. The accordance between the local surface plasmon resonance of NPs and the UC emission band significantly increased the luminescence intensity. The efficiencies of the radiative emissions were enhanced also due to the hydroxyl groups primarily absorbed around the NPs.
研究领域:
材料科学
·
光子学
·
纳米技术
·
光学材料
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DOI
高影响因子
Journal of Energy Chemistry
·
2026
·
IF 15.6
Junqing Zhang,Yachao Zeng,Gong Zhang,Jia Yu,Hui Gao,Xiaowei Du,Yangning Zhang,Tuo Wang,Peng Zhang,Jinlong Gong
Electrolysis of (bi)carbonates into valuable chemicals using renewable electricity is an attractive strategy to integrate CO 2 capture and valorization systems for reducing carbon emissions. Optimizing the proton concentration on the catalyst surface in (bi)carbonate electrolyzers can enable rapid local CO 2 release, making it a promising approach for enhancing electrocatalytic performance. This paper describes an efficient surface modification strategy using organic molecules with low p K a values to facilitate the accumulation of protons near the electrode. Operando Raman results prove that the modifier could promote pH swinging and increase the local CO 2 concentration. Consequently, when operated at a current density of 100 mA cm −2 , the acid-modified catalyst exhibited a CO Faradaic efficiency of 60%, higher than that of the base-modified catalyst, producing syngas with a CO/H 2 ratio of 0.5 at the cell voltage of 3.3 V. The proposed method offers promising new solutions for the development of commercially relevant integrated CO 2 reduction systems.
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产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2026
·
IF 5.8
Ze-Xian Chen,Yuan Zou,Ruo-Zhou Li,Yuan-Jun Song,Zong-Ru Yang,Lei Shi,Tong Zhang
The surging power density and thermal demands of advanced electronic devices necessitate conductive pastes that can undergo pressureless sintering at low temperatures while maintaining reliable performance under high-temperature operating conditions─requirements that conventional Sn-based solders can no longer meet. Cu@Ag core–shell nanoparticles offer a compelling alternative by integrating the cost-effectiveness and low electrochemical migration of Cu with the oxidation resistance of Ag. However, thermal dewetting of the Ag shell during heating significantly compromises the joint integrity and reliability. Here, we report a surface modification strategy that effectively suppresses the surface energy of Cu@Ag nanoparticles, enabling exceptional structural stability up to 250 °C without Ag shell dewetting. By incorporating surface-modified Ag nanoparticles, we formulate a bimodal conductive paste that achieves pressureless sintering at low temperatures and delivers a maximum shear strength of 20.18 MPa, which is on par with or even better than the shear strength of Cu@Ag nanoparticles sintered under a protective gas atmosphere in similar recent work. After 96 h of thermal aging, the shear strength further increased to 30.13 MPa. We performed fracture surface analysis on joints with different shear strengths and proposed a mechanism for the shear resistance of Cu@Ag paste joints at varying sintering levels. This work offers a practical and scalable approach for developing high-performance, low-cost conductive pastes and paves the way for the broader adoption of Cu@Ag-based pastes and adhesives in advanced electronic packaging.
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产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
·
IF 4.8
Cuifeng Jiang,Yong Zhu,Wanting Han
In this study, lysine protected silver nanoclusters (Lys-AgNCs) were prepared and the mimetic property was systematically investigated. The nanoclusters displayed oxidase-like and peroxidase-like activity for the catalytic oxidation of 3, 3′, 5, 5′-tetramethylbenzidine (TMB). Interestingly, the nanozyme property could be tuned by adjusting the pH or temperature. In the low pH (3.6–4.2), oxidase-like activity is predominant. In the high pH(4.2–5.4), peroxidase- like activity is the main activity. In the lower temperature (20–40 °C), oxidase-like activity is predominant. Importantly, the Lys-AgNCs showed stronger affinity for TMB. The activation energy of Lys-AgNCs was lower than bare Ag nanoclusters, indicating a faster reaction rate. In addition, a detection method for Hg 2+ was designed based on the aggregation enhanced peroxidase-like activity of lysine-Ag nanocluster with limit of detection (LOD) of 0.004 μM. The sensing assay exhibited excellent selectivity owing to the specific interaction between lysine and Hg 2+ and can be used in tap water with an acceptable recovery rate. Considering the cost-effective of this method, it is proposed to be used in practical application.
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产品关联
DOI
PubMed
高影响因子
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