POLYMER DEGRADATION AND STABILITY
·
2019
·
IF 3.78
Junfeng Cheng,Jun Zhou,Cheng Zhang,Zheng Cao,Dun Wu,Chunlin Liu,Hui Zou
To achieve an enhanced laser marking for polypropylene , the “core-shell” ATO@PI (antimony-doped tin oxide@polyimide) laser-sensitive composite was successfully designed and prepared. This laser-sensitive composite consisted of an ATO “core” with high photothermal conversion efficiency and a PI “shell” with high laser induced carbonization rate. Compared with pure ATO, the results showed that 0.3 wt% of the ATO@PI composite endowed polypropylene with an enhanced laser marking performance. The results of SEM and TEM revealed that PI was tightly coated around the ATO surface and the laser-sensitive composite particles were approximately spherical. Both Raman and near infrared (NIR) absorption spectrum observed that, after irradiation of 1064 nm laser, the carbonization degree of polypropylene using ATO@PI was much higher than that of only using pure ATO. The photothermal conversion of ATO and the local carbonization of PI in the composite synergistically increase the degree of laser induced carbonization of polypropylene. Importantly, the “core-shell” laser-sensitive composite designed here further broadens the application prospects of inorganic particles in the field of polymer laser marking.
研究领域:
材料科学
·
激光技术
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产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2021
·Vol. 50
·期 29
·10033-10040
·
IF 4.39
Zhibo Zhang,Ruicong Zhang,Liangge Xu,Jiajun Li,Lei Yang,Yanan Yang,Andrey Bolshakov,Jiaqi Zhu
In recent years, smart windows have been gradually applied and developed in the fields of environmental protection, energy management, smart camouflage and display. With the continuous upgrading of market demand, smart windows with both visible and infrared band modulation functions are the future development trends. However, the optical modulation of smart windows is usually limited in the visible light band (380–780 nm). In this paper, we report a novel smart window by doping antimony doped tin oxide (ATO) nanoparticles (NPs) into polymer stabilized liquid crystal (PSLC) films. These films have the widest waveband modulation function among those reported so far, covering the visible and infrared regions (380–5500 nm). The transmittance of the as-prepared smart films can be changed reversibly from highly transparent (78.5%) state to a strong light scattering (10%) state in the visible region. In addition, due to the localized surface plasmon resonance of ATO NPs, up to 80.7% of the infrared invisible light can be effectively shielded. The significance of this research is to provide theoretical and technical support for the broadband optical modulation of novel smart windows.
研究领域:
材料科学
·
光学工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Yang Li,Guoxun Zeng,Guoqiang Yang,Qibai Wu,Haiyan Zhang,Wenwu Li,Yannan Qian
Hydrophilic coatings have received considerable attentions in recent years. This study investigates an ATO/potassium silicate hydrophilic film based on antimony doped tin oxide (ATO) and potassium silicate (PS) which deposited on aluminum sheets by twice spray pyrolysis . For comparison, four groups of samples including aluminum sheets (Al), aluminum sheets deposited with ATO film (Al/ATO), aluminum sheets deposited with potassium silicate film (Al/PS) and aluminum sheets deposited with both ATO and potassium silicate films (Al/ATO/PS) have been used for experiments. The morphologies, phase structures and chemical compositions of four samples have been characterized using FE-SEM, AFM , XRD and XPS . The hydrophilic, anticorrosive, thermal conductive and electrical resistive properties of the four samples have been studied in detail. The results show clearly that smooth PS film possesses good hydrophilicity and the water contact angle of ATO/PS film maintains below 17° after being exposed in air for 1 month. Moreover, the ATO/PS film shows lower corrosion current density comparing with other samples, revealing its excellent corrosion resistance property. The difference in the thermal conductivity values of the four samples is not significant. And the thermal conductivity is slightly increased by 4.0% for Al/ATO/PS, compared to Al/PS. These results indicate that ATO/PS film has superior hydrophilic performance, corrosion resistance and thermal conductivity than the individual potassium silicate film and ATO film.
研究领域:
材料科学
·
表面工程
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Qingguo Cai,Xin Li,Liying Wen,Yangfan Du,Yihan Shi,Yibo Sun,Bo Ding,Yuanhao Wang,Shifeng Wang
Driven by the global goal of “carbon neutrality”, energy conservation, emission reduction and low-carbon development have become important research directions. Transparent thermal insulation materials can effectively shield near-infrared radiation while maintaining high visible light transmittance , making them widely applicable in building energy conservation . In this paper, antimony-doped tin oxide (ATO) and cesium tungsten bronze (Cs x WO 3 , or CWO) are chosen to be composited in order to solve the problems of the poor shielding effect of ATO for short-wavelength near-infrared (NIR) light and the unsatisfactory shielding effect of CWO for long-wavelength NIR light. Therefore, in this study, we employed a one-step hydrothermal method to form a novel CWO@ATO core-shell structure to combine the advantages of both ATO and CWO. By adjusting the composite ratio of ATO and CWO, both the physical and electronic stucutres are effectively tuned to promote the optical modulation in a broad bandwidth. Enventually, the core-shell structured composite exhibit an excellent near-infrared blocking property, surpassing the pure ATO by 27.8 % in the wavelength region of 780∼1500 nm while improving by 14.9 % compared to CWO in the long wavelength between 1500 and 2500 nm. Furthermore, the prepared CWO@ATO core-shell structure repesents near-infrared shielding rate as high as 93.1 % in the full NIR spectrum , and possesses an overall thermal insulation coefficiency (THI) of 9.33 in the full range from 780 nm to 2500 nm, which is substantially larger than that of pure ATO and CWO by a factor of 2.37 and 3.05, respectively. This core-shell structure engineering realizes the utilization of complementary advantages of ATO and Cs 0·33 WO 3 materials, providing a new method to improve the near-infrared performance of energy-saving glass coating , and having broad application prospects in the field of low-carbon buildings.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2019
·Vol. 166
·期 16
·B1727
·
IF 3.12
Shuting Cheng,Guanglei Chu,Zengning Liu,Yemin Guo,Xia Sun
A novel electrochemiluminescence (ECL) immunosensor was fabricated by using titanium dioxide (TiO2) and antimony tin oxide (ATO) nanocomposite as electrode modified material to detect aflatoxin B1 (AFB1). Luminol with ECL characteristics was modified on the surface of a platinum electrode to prepare the luminescent electrode. The buffer solution contained hydrogen peroxide (H2O2) was used to monitor the ECL signals owing to the chemiluminescence properties of luminol-H2O2 in alkaline solution. TiO2 and ATO were doped with chitosan to form TiO2@ATO nanocomposite, which was modified on the electrode to enhance the ECL intensity by accelerating the electron transfer and provided more binding sites for aflatoxin B1 antibody (Ab) and AFB1. An ECL immunosensor was prepared for AFB1 detection by modifying Ab and bovine serum albumin (BSA) successively. The specific combination of AFB1 and Ab weakened the ECL intensity, thus the concentration of AFB1 was determined according to the strength change of ECL signal. Under optimum conditions, the constructed immunosensor provided a wide linear range from 1.0 × 10−2 to 1.0 × 103 ng mL−1 with a detection limit of 0.03 ng mL−1 (S/N = 3) and showed great specificity and high stability. Furthermore, the proposed immunosensor successfully demonstrated its applicability for detecting AFB1 in peanut oil samples.
研究领域:
分析化学
·
食品安全检测
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Minjia Wang,Jinchao Bu,Yang Xu,Yuan Liu,Yunfang Yang
Antimony doped Tin Oxide (ATO) hollow submicron spheres were synthesized with a carbon ball template using the hydrothermal method , and compared to commercial nano-ATOs that differed in particle size. To study the thermal insulation performance and the mechanism of different ATOs, their morphology, crystalline structure and microstructure were examined using XRD, SEM and HRTEM. Meanwhile, the optical and thermal characteristics of the different ATOs, including absorption, reflectance, thermal conductivity , infrared emissivity (8–14 μm), and specific heat capacity, were also measured. Silicone acrylic emulsion coatings containing different dosages of ATO were then prepared, and their UV–Vis–NIR transmittance and solar heat shielding performances were tested. ATO hollow submicron spheres showed a thermal insulation performance comparable to that of nano-ATO, but their main respective thermal insulation mechanism was different. ATO hollow submicron spheres primarily relied on better particle dispersion, lower thermal conductivity, higher specific heat capacity and higher infrared emissivity. The 50 nm ATO absorbed the least solar heat but reflected the most light, while 100 nm ATO showed the opposite behavior. Both nano-ATOs had better transmittance in the visible light range but relatively low transmittance in the ultraviolet and infrared range. The results of this study indicate that ATO hollow submicron spheres are promising materials equivalent to nano-spheres that can be applied as a coating for energy conservation.
研究领域:
材料科学
·
能源工程
✓ 已验证
DOI
高影响因子
RENEWABLE ENERGY
·
2022
·
IF 8.634
Dan Qu,Lekai Cheng,Yanqiong Bao,Yingxv Gao,Xiong Zheng,Guangzhao Qin
Solar steam generation has received tremendous attention recently due to the increasing demand for fresh water. In this study, carbon black (CB) and antimony doped tin oxide (ATO) hybrid nanofluid were prepared to improve the performance of the solar desalination system . The long-term stability of CB-ATO nanofluids enables good operation during solar steam generation. The optical properties of hybrid nanofluids were investigated systematically and showed that hybrid nanofluids significantly enhanced the solar energy utilization ability compared with one-component nanofluids. Furthermore, solar evaporation experiments of hybrid nanofluids were carried out under one sun using solar irradiation simulator, the evaporation efficiency was enhanced by about four times than pure water with the addition of nanoparticles. Meanwhile, the solar-thermal conversion during the evaporation process was analyzed using experimental data and the mechanism of evaporation enhancement of hybrid nanofluids was proposed. This study paves a new way for the use of hybrid nanofluids in the solar steam generation technique.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2023
·
IF 29.4
Amin Zhang,Ang Gao,Cheng Zhou,Cuili Xue,Qian Zhang,Jesus M. De La Fuente,Daxiang Cui
Nanozymes with inherent enzyme-mimicking catalytic properties combat malignant tumor progression via catalytic therapy, while the therapeutic efficacy still needs to be improved. In this work, ultrasmall platinum nanozymes (nPt) in a confined domain of a wormlike pore channel in gold nanobipyramidal–mesoporous silica dioxide nanocomposites, producing nanozyme carriers AP-mSi with photoenhanced peroxidase ability, are innovatively synthesized. Afterward, based on the prepared AP-mSi, a lung-cancer nanozymes probe (AP-HAI) is ingeniously produced by removing the SiO 2 template, modifying human serum albumin, and loading atovaquone molecules (ATO) as well as IR780. Under NIR light irradiation, inner AuP and IR780 collaborate for photothermal process, thus facilitating the peroxidase-like catalytic process of H 2 O 2 . Additionally, loaded ATO, a cell respiration inhibitor, can impair tumor respiration metabolism and cause oxygen retention, hence enhancing IR780's photodynamic therapy (PDT) effectiveness. As a result, IR780's PDT and nPt nanozymes' photoenhanced peroxidase-like ability endow probes a high ROS productivity, eliciting antitumor immune responses to destroy tumor tissue. Systematic studies reveal that the obvious reactive oxygen species (ROS) generation is obtained by the strategy of using nPt nanozymes and reducing oxygen consumption by ATO, which in turn enables lung-cancer synergetic catalytic therapy/immunogenic-cell-death-based immunotherapy. The results of this work would provide theoretical justification for the practical use of photoenhanced nanozyme probes.
研究领域:
生物医学工程
·
肿瘤学
·
纳米医学
✓ 已验证
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Ying Zhang,Yuanqing Chen,Shufeng Li,Jianguo Lu,Miao Du,Zhichao Jiao,Juntao Zou
The hollow double-shell Silicon dioxide/antimony doped tin oxide (SiO 2 @ATO) spherical microspheres with size of 320 nm were prepared by hydrothermal method using PS spheres as templates. The morphology, crystal structure and microstructure of hollow SiO 2 @ATO microspheres were characterized by XRD , SEM, EDS and HRTEM . In addition, the composite coatings were prepared by adding different contents of hollow SiO 2 @ATO to the acrylic matrix, and their optical and thermal insulation properties were studied. The light transmittance of the acrylic matrix coating with 1.5 wt% hollow double-shell SiO 2 @ATO can reach ∼80%. Moreover, it was found that the hollow double-shell SiO 2 @ATO/acrylic matrix coating lowered the indoor temperature of a homemade incubator by 9.5 °C. Overall, the prepared hollow SiO 2 @ATO microspheres show a great potential in the application of energy saving windows.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2023
·
IF 6.9
Ammar Dmour,Yang Xiao,Wenshuang Tian,Guangzhao Qin,Xiong Zheng
In photovoltaic power systems , nanofluids are promising candidates for spectral beam splitters (SBSs) owing to their excellent spectral absorption regulation characteristics. The drawbacks of high cost and instability restrain the practical application of nanofluid SBSs. Here, we proposed a hybrid nanofluid SBS containing carbon quantum dots (CQDs) and antimony tin oxide (ATO) nanoparticles , which has been proven to be an excellent SBS from multiple perspectives. Both CQDs and ATO nanoparticles have low cost and super stability, which ensures the long-term practical application of hybrid nanofluid SBSs. Then, the light absorption characteristics of hybrid nanofluids can be effectively regulated because of the complementary optical properties of CQDs and ATO nanoparticles. Furthermore, the PV/T conversion model and indoor test were used to assess the filtering performance of hybrid nanofluid SBSs. The results indicate that CQD-ATO hybrid nanofluids can achieve a high merit function value of 1.815, which is significantly higher than pure CQD nanofluids and outperforms other nanofluid SBSs reported in the literature. This paper may promote the practical utilization of nanofluid SBSs in photovoltaic power systems.
研究领域:
材料科学
·
能源工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Haihong Niu,Xiaoyu Yao,Suikang Luo,Hao Cui,Wenlong Chen,M. D. ASIK Ahmmed,Ru Zhou,Huan Wang,Lei Wan,Liangliang Hu
In this paper, the preparation of a transparent superhydrophobic composite coating with a thermal insulation function using antimony-doped tin oxide (ATO) nanoparticles is proposed, which has advantages of being mass-producible and low-cost. In short, nanosilica and ATO are used as raw materials for constructing rough structures, and superhydrophobic coatings are obtained by mixing and adding binders after modification of each, which are then applied to the surface of various substrates by spraying to obtain a transparent superhydrophobic coating with a heat-insulating function. The specific role of each nanoparticle is discussed through comparative experiments that illustrate the mechanism by which the two particles construct rough structures. The coating achieves unique thermal insulation properties while possessing excellent superhydrophobicity (WCA of ∼163° and WSA of ∼3°) and high light transmission (∼70%). Heat-shielding experiments have demonstrated that the composite coating effectively reduces the room temperature by approximately 19% for the same irradiation time. The coating achieves a balanced improvement in visible transmittance, thermal insulation, and superhydrophobicity. In addition, the coating’s self-cleaning properties, mechanical properties, chemical weathering resistance, high-temperature resistance, and anti-icing properties were verified through various experiments.
研究领域:
材料科学
·
建筑技术
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Sciences
·
2023
·
IF 6.9
Junying Yi,Yuli Chen,Dongze Lai,Bihong Lv,Xiaomin Wu,Guohua Jing
Bi 2 O 3 catalyst with Bi-O bond crystal structure has more active sites, which shows better CO 2 catalytic performance than pure Bi catalysts in many catalytic reactions. How to strengthen the Bi-O bond in Bi 2 O 3 to obtain higher selectivity and catalytic activity is a problem worthy of consideration. Here, we develop a N 2 pre-reduced spherical Bi 2 O 3 /ATO catalyst that has a high formate Faradaic efficiency of 92.7%, which is superior to the existing tin oxide catalyst. Detailed electrocatalytic analysis shows that N 2 pre-reduction and spherical structure are helpful for Sn to stabilize the oxidation state of Bi, thus retaining part of the Bi-O structure. The existence of the Bi-O structure can reduce the energy barrier of the CO 2 production *OCHO reaction and promote the reaction rate of the CO 2 -*OCHO-HCOOH path, thus promoting the formation of formate.
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产品关联
DOI
PubMed
高影响因子
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