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Influence of substitution of Nd3+ for Bi3+ on structure and piezoelectric properties of SrBi2-χNdχNb2O9 (χ=0, 0.1, 0.2 and 0.4) SUN Lin(孙 琳)1, CHU Jun-hao(褚君浩)1, YANG Ping-xiong(杨平雄)1, YUE Fang-yu... lowers the piezoelectric properties of SrBi2-χNdχNb2O9 ceramics. Meanwhile, the temperature coefficient of resonant frequency (TCF) decreases when Nd element partially replaces Bi element......
Photocatalytic activity enhancing for TiO2 photocatalyst by doping with La WEN Chen (文 晨), DENG Hua (邓 桦), TIAN Jun-ying (田俊莹), ZHANG Ji-mei (张继梅) Institute of Material and Chemical... activity was evaluated by the photocatalytic degradation of phenol in solution under sunlight irradiation. The results show that the crystallinity of anatase is improved by La doping. Moreover, La not only......
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J. Cent. South Univ. Technol. (2009) 16: 0931-0935 DOI: 10.1007/s11771-009-0155-7 Chemical component and antimicrobial activity of volatile oil of Calycopteris floribunda LIU Jia-jia(刘佳佳)1...%) and butyl octyl phthalate (8.21%) are the major constituents. The oils exhibit strong antimicrobial activity and display more potent against bacteria than fungi. Key words: Calycopteris floribunda......
piezoelectric ceramics was prepared by a conventional ceramic sintering technique. The effect of Bi (Mg1/2Ti1/2)O3(BMT) addition on microstructure, piezoelectric, dielectric and ferroelectric properties... kept same values when x≤0.06. The piezoelectric constant d33 increased obviously and the electromechanical coupling factor kp decreased with BMT addition. The excellent piezoelectric properties of d33......
Structure and visible photocatalytic activity of nitrogen-doped meso-porous TiO2 layer on Ti6Al4V substrate by plasma-based ion implantation LI Jin-long(李金龙)1, 2, 3, MA Xin-xin(马欣新)1, SUN Ming-ren... and nitrogen doping contribute to an apparent increase of photocatalysis efficiency. Key words: Ti6Al4V alloy; TiO2 layer; nitrogen doping; ion implantation; structure; photocatalytic activity  ......
J. Cent. South Univ. (2012) 19: 1212-1218 DOI: 10.1007/s11771-012-1131-1 Quantitative structure-activity relationship of 2-alkyl-4-(biphenylylmethoxy) pyridine derivatives with AT1 receptor antagonistic activity JIANG Yu-ren(蒋玉仁), CHEN Yu-ling(陈玉玲), YANG Yan-yan(杨焱焱), LIU qiang(刘强) College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China ? Central South......
Preparation of Nano-TiO2 Doped with Cerium and Its Photocatalytic Activity Fan Caimei1,Xue Peng1,Sun Yanping1 (1.College of Chemistry & Chemical Engineering, Taiyuan University of Technology... electron microscopy (TEM), and UV/Vis diffuse reflectance spectra (DRS). The photocatalytic activity was evaluated by photocatalytic degradation of phenol in water. The results of XRD, TEM, and DRS show......
能压电纤维复合物的驱动应变性能;方形压电纤维复合物较圆形压电纤维复合物的驱动应变性能至少可提高60%. 关键词:压电纤维复合物;有限元法;压电陶瓷纤维;应变性能 中图分类号:TF111 文献标志码:A Modeling and optimization of actuation strain property of piezoelectric... laboratory of Powder Metallurgy, Central South University, Changsha 410083, China) Abstract: The piezoelectric fiber composites become one research focus of smart materials due to the larger strain......
Antibacterial Activity of Silicate Bioceramics扈盛1,2,常江21. Department of Physical Education,Huazhong Normal University2. Biomaterials and Tissue Engineering Research Center,Shanghai Institute... showed antibacterial effect in a dose-dependent manner.Generally,the order of their antibacterial activity against E.coli from strong to weak is Ca3SiO5,bredigite,CaSiO3 and akermanite.关键词:......