穆劲
无机功能材料制备与应用、胶体与界面化学
个性化签名
- 姓名:穆劲
- 目前身份:
- 担任导师情况:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
物理化学
- 研究兴趣:无机功能材料制备与应用、胶体与界面化学
穆劲教授,1963年3月生,PhD,博士生导师。现从事无机化学教学及研究工作,研究方向为无机功能材料制备与应用、胶体与界面化学,已在国内外重要学术期刊上发表70余篇学术论文,曾获国家教委科技进步二等奖等多项奖励,曾承担国家863计划、教育部优秀青年教师基金、国际合作项目等。曾任山东大学胶体与界面化学研究所所长、国家教委胶体与界面化学重点实验室主任、山东大学化学学院副院长,于1997年至2001年留学日本山口大学工学部。现任华东理工大学化学与制药学院副院长。
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2561
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成果阅读
432
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成果数
10
穆劲, Xiang-Qing Li, Jin Mu*, Feng Li, Xu-Bin Gao
Colloids and Surfaces A: Physicochem. Eng. Aspects 260(2005)239-243,-0001,():
-1年11月30日
A new type of self-assembled film was prepared by alternating deposition of oppositely charged meso-tetra-(4-trimethylaminophenyl) porphyrin nickel iodide (NiTAPPI) and citrate-stabilized CdSe nanoparticles. The stepwise deposition process was monitored by means of UV-vis spectroscopy. The interaction between the porphyrin and CdSe nanoparticles was characterized with UV-vis and fluorescence spectra. The SEM images showed the formation of densely packed two-dimensional array and the conversion of disorder-to-order of CdSe nanoparticles on the quartz substrate modified by PDDA when depositing positively charged NiTAPPI. The self-assembled film placed in ambient air exhibited significant enhancement of fluorescence intensity. The effects of heat treatment and UV-light irradiating on fluorescence properties of the composite films were investigated in details.
Porphyrin, Cadmium selenide nanoparticles, Self-assembled films, Interaction, Photoluminescence
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【期刊论文】Investigation on LB Films of Stearic Acid Inlaying Hematoporphyrin
穆劲, Mu, Jin*, Li, Jian-Ye Yang, Kong-Zhang
化学学报 ACTA CHIMICA SINICA 1993,246~260,-0001,():
-1年11月30日
In this paper, Langmuir-Blodgett films of hematoporphyrin mixed with stcaric acid have been investigated. It was found that hematoporphyrin molecules were inlaid in monolayers of stearic acid. The UV-vis spectra of the LB films showed that there wasn't strong interaction between ematoporphyrin molecules when compared with the solution spectrum. The particular orientation of hematoporphyrin macrocycle in LB f'dm was con-firmed by polarized' UV-vis spectra.
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穆劲, 李建业, 杨孔章
化学学报 ACTA CHIMICA SINICA 1994,535~538,-0001,():
-1年11月30日
卟啉类化合物具有良好的电子转移和能量传递的功能 [1],是很好的光敏剂和氧化还原剂 [2] 血卟啉及其衍生物在恶性肿瘤临床诊断及治疗中已得到应用 [3],文献 [4] 曾研究了6种无脂链卟啉在花生酸单分子膜中的镶嵌行为,其结果是卟啉被挤出花生酸单分子层成团聚集。并用sEM直接观察到混合膜的相分离现象。本文是这一工作的继续、血卟啉分子自身在液一气界面上有一定的成膜能力,但稳定性较差,难于在固体基片上沉积、将血卟啉与硬脂酸混 合时,两者在单分子膜内有较好的相容性,易于沉积在固体基片上。
血卟啉, 硬脂酸, 混合LB膜, 结构
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【期刊论文】非对称八烷氧基取代酞菁聚硅氧烷的合成及其单分子膜*
穆劲, 夏强, 化玉晶, 周伟东, 肖童
高等学校化学学报,1995,16(11):1790~1792,-0001,():
-1年11月30日
酞菁比合物是具有高稳定性的大键共轭体系。目前,酞菁LB膜研究大多采用单体小分子,其气敏特性已有报道。小分子LB膜机械强度及膜结构稳定性差、器件寿命短,无法达到实用阶段,而聚合物LB膜可以提高膜的机械强度,改善膜的性能。酞菁聚硅氧烷是具有优良氧比还原性质和光学性质的新型LB膜材料,膜分子堆集密度高,缺陷少,热和机械稳定性高,Vogel等,将其用作场效应晶体管的栅极膜材料,制作了性能优良的离子传感器。
酞莆聚硅氧烷, I., B膜, π-A曲线
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穆劲, Jin Mu, Hiroaki Okamoto, Shunsuke Takenaka*
Thin Solid Films 372(2000)240-245,-0001,():
-1年11月30日
The Langmuir film behavior of fluorine-containing side chain liquid crystal copolysiloxanes at the air-water interface has been studied over a temperature range of 277.5-310K. The surface pressure-area isotherms exhibited a transition from an expanded to a condensed phase. In the expanded phases the main chains of the polymers were anchored at the air-water interface. In the condensed phases the extension or partial exclusion of the main chains at the air-water interface was mainly controlled by the cross-sectional area of the side chain. The transferred Langmuir-Blodgett LB multilayer did not give any X-ray diffraction peak. With heating, a molecular ordering of the LB film was induced so that the film showed the Bragg diffraction peak.
Liquid crystal copolysiloxanes, Langmuir films, Langmuir-Blodgett films, Fluorine substituent effect
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【期刊论文】Monolayer and multilayer of a liquid crystal copolysiloxane at the air-water interface
穆劲, Jin Mu a, Hiroaki Okamoto a, Shunsuke Takenaka a, *, Xusheng Feng b
Physicochemical and Engineering Aspects 172(2000)87-90,-0001,():
-1年11月30日
This paper describes the phase transition behavior of a copolysiloxane (1) bearing a 4-cyanophenyl benzoate core at the terminal of the side chain. While polymer 1 exhibits only a nematic phase in bulk, it easily forms layer structures involving monolayer, trilayer, and complex multilayers at the air-water interface. In the monolayer state the cyano groups are anchored on the water surface and the aromatic moieties involving the copolysiloxane chain are directed towards the air phase. The trilayer has a partially bilayer structure on the top of the monolayer, where the layer structure was confirmed by X-ray diffraction measurement of the LB films, giving the layer spacing of 1.47 times of the calculated side chain length. Complex multilayer transitions were also observed by a further compression or changing subphase temperature.
Liquid crystal copolysiloxane, Monolayer formation, Multilayer formation, Air-water interface, LB film
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穆劲, Jin Mu a, b, Hiroaki Okamoto a, Takayoshi Yanai a, Shunsuke Takenaka a, *, Xusheng Feng b
Physicochemical and Engineering Aspects 181(2001)303-313,-0001,():
-1年11月30日
Liquid crystal polysiloxanes with a lateral 4-(4-cyanophenoxycarbonyl)phenyl 4-(2-perfluoroalkylethoxy)-2-propyleneoxybenzoate side group and a 4-decyloxy-2-propyleneoxy-benzoate hydrocarbon analogue were prepared, and the mesomorphic properties were determined by the microscopic observation and differential scanning calorimeter (DSC) thermogram, and the layer structure of the smectic A phase was characterized by an X-ray diffraction experiment. The introduction of the perfluoroalkyl chain to the polymer remarkably enhances the smectic properties due to the strong fluorophilic interactions around the perfluoroalkyl chain. The effect of the perfluoroalkyl chain on the monolayer formation was studied at the air–water interface. The surface pressure–area isotherms show that the perfluoroalkyl chain enhances the stability of the monolayer versus surface pressure. In the condensed state the cyano group in the side chain is assumed to be anchored on the water surface and the mean axis of the liquid crystal core is approximately normal to the water surface. The monolayers were easily deposited on a hydrophobic glass slide, giving uniform Langmuir–Blodgett (LB) films by the vertical deposition method. The X-ray diffraction results indicate that the perfluorooctyl chain effectively stabilizes the layer structure in the multilayer LB film at room temperature. The side chain monomers also show a similar behavior to the polymers and give uniform LB films on hydrophobic glass slides.
Liquid crystal polysiloxanes, Synthesis, Perfluoroalkyl chain, Monolayers, LB films
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【期刊论文】"Green" synthesis of starch capped CdS nanoparticles
穆劲, Qinglian Wei, Shi-Zhao Kang, Jin Mu*
Colloids and Surfaces A: Physicochem. Eng. Aspects 247(2004)125-127,-0001,():
-1年11月30日
CdS nanoparticles were successfully synthesized through a simple and "green" route using starch as a capping agent. The nanoparticles were characterized by means of AFM, X-ray diffraction (XRD), UV-vis absorption and photoluminescence spectroscopy. The X-ray diffraction analysis suggested that the CdS nanoparticles were of the cubic structure. The AFM gave an average particle size of approximately 10nm.
", Green", synthesis, CdS nanoparticles, Soluble starch, Capping agent
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穆劲, Jin Mu*, Danying Gu, Xiaofang Gu
Materials Science and Engineering C 25(2005)77-80,-0001,():
-1年11月30日
The ZnO ultrathin films were fabricated from annealing the ZnS nanoparticulate films. By the layer by layer self-assembly technique, we constructed the ZnS nanoparticulate films from alternating layers of ZnS nanoparticles and polydiallyldimethylammonium chloride (PDDA). The result of the emission spectra indicated that PDDA played a role of passivator. Annealing the ZnS/PDDA films at different temperatures led to the changes in absorption. The SEM images showed that the preannealed film was composed of the uniformly distributing domains, while on the annealed film, there exist some holes formed by the burning of the organic components. The EDS confirmed that ZnS could be converted to ZnO at 500℃
ZnS nanoparticulate films, Thermal annealing, ZnO ultrathin films
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【期刊论文】Synthesis and stabilization of ZnS nanoparticles embedded in silica nanospheres
穆劲, J. MU, D. GU, Z. XU
,-0001,():
-1年11月30日
The silica-coated ZnS nanocomposites have been synthesized by a seeded-growth procedure in iso-propanol. The results of XRD, HRTEM and UV absorption show that the ZnS nanoparticles can be incorporated in the silica nanospheres without changing the particle size, and the composites are of multi-core structure. UV absorption and emission spectra have been performed to check the character of the composites, which show that the silica shell not only increases the PL intensity, but also greatly improves the anti-oxidation ability and thermal stability.
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