APPLIED CATALYSIS B-ENVIRONMENTAL
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2018
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IF 11.698
Heng Li,Meng Li,Lijun Zhang,Xiang Zhang,Yundi Ma,Bing Yu,Qiang Wei,Shuhua Yin
Dipyridyl benzene skeleton (Py-ph-Py) was synthesized and chem.-grafted on titanium dioxide through hydrothermal method. The novel organic/inorganic hybrid structure DPA-TiO 2 displays remarkable photocatalytic activity and stability. The structural and surface characterization revealed that hybrid composites were linked with chemical ester bonds, which enabled the organic skeletons on the surface to act as charming transmitters of charges. The hybrid structure not only shortens the bond gap of catalyst hence to make charges be generated under visible light, but also transfers the photogenerated electrons in time to avoid them recombining with positive holes. In addition, the excellent adsorption capacity to waste organic compounds also contributes to its wonderful catalytic properties. The novel methodology is of great instructive to the utilization of solar energy to dispose environmental pollutions.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
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2021
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IF 4.821
Jie Liu,Xinxin Xu,Aihong Wu,Zhengyou Wang,Shanshan Song,Hua Kuang,Liqiang Liu,Chuanlai Xu
In this study, a novel hapten of pyridaben was designed and used in the preparation of a monoclonal antibody (mAb), which was then used in the development of a lateral flow immunoassay (LFIA). The mAb 3C2 had good sensitivity with a 50% inhibitory concentration (IC 50 ) of 2.36 ng/mL. The developed LFIA had good sensitivity with cut-off values of 25 and 50 ng/g for pyridaben in cucumber and apple samples, respectively. Importantly, our LFIA was comparable to other methods of detection such as indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and liquid chromatography mass spectrometry (LC-MS/MS). These results indicated that the LFIA method represents a reliable, portable, and high-throughput method for the on-site detection of pyridaben in vegetables and fruits.
研究领域:
分析化学
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食品科学
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免疫学
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
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2023
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IF 3.9
Hua Ye,Denghui Liu,Fen Liu,Liangyuan Chen,Wei Hu,Yu Bai,Jiali Rao,Dehan Wu,Xinyi Cai,Shi-Jian Su
A series of light-emitting dendrimers T42Bn, T24Bn, T26Bn and T35Bn based on electron-donating units of the second-generation butyicarbazoles (G2Cz) as dendrons and electron-withdrawing core of tripyridylbenzene (TPB) were designed and synthesized. The desirable blue luminogens were obtained due to the rational molecular design based on the twisted skeleton of all the molecules despite the donors of G2Cz moieties connected to the central acceptors of TPB via a para-phenylene bridge. Their thermal, photophysical, density functional theory calculation and electrochemical properties were fully investigated. Thanks to the excellent thermal stability, film-forming ability as well as the favourable energy levels of the dendrimers, efficient solution-processed hybrid white organic light-emitting diodes (WOLEDs) were achieved by employing these blue dendrimers and the orange emitter of (acetylacetonato)-bis[2-(thieno [3,2-c]pyridin-4-yl)phenyl]iridium(III) (PO-01) as an emitting layer (EML). Among them, the device based on T42Bn exhibited the highest maximum current efficiency (CE max ) of 10.25 cd/A with a maximum external quantum efficiency (EQE max ) of 3.94% and Commission International de I'Eclairage (CIE) coordinates of (0.34, 0.39), benefiting from the largest ƞ PLQY and the highest electron transport capability of T42Bn and thus the enhancement of charge carrier balance in the device. In addition, the CIE coordinates of all the single-emitting-layer fluorescence/phosphorescence hybrid devices are very close to the benchmark white region of (0.33, 0.33). Our findings demonstrate the potential candidates of the solution-processable blue dendronized emitters for applications in full-color flat-panel displays and white lighting.
研究领域:
材料科学
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光电化学
✓ 已验证
DOI
高影响因子
ACS Applied Polymer Materials
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2023
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IF 5
Jingkai Liu,Liyue Zhang,Xinbei Zhu,Qing Chen,Kan Zhang,Xiaoqing Liu
Phenolic derivatives capable of reducing the ring-opening temperature of benzoxazine resin have gradually emerged as valuable modules for benzoxazine chemistry, not to mention their good compatibility, coreactivity, and network modifiability. However, the previously reported unsatisfactory promotion effects, unclear reaction mechanisms, and unstable structure have severely limited the development of benzoxazine/phenol systems. Herein, a supramolecular hydrogen-bonded system consisting of resorcinol and 2-aminopyridine benzoxazine (PH-2a) was developed. The PH-2a/resorcinol mixture system with an equivalence ratio of 1:1 exhibited a dramatic reduction in ring-opening peak temperature (Tp) from 283 to 110 °C. Experimental combined with computational investigations supported its supramolecular H-bond behavior. Based on the cross-comparison of PH-2a analogues and other diphenols, the critical roles of H-bonding interactions both in activating reactants and inducing a directional reaction were revealed. These H-bonds with appropriate strengths can self-assembly form and close the distance between potential reaction sites, facilitating the direct production of an adduct. In addition, the application potential of the PH-2a/resorcinol system was also prospected, which can promise network tailoring and low-temperature cross-linking by the design flexibility of PH-2a and resorcinol derivatives, opening up possibilities for the preparation of advanced polybenzoxazine resins at low temperature.
研究领域:
材料科学
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高分子化学
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超分子化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）