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Nanoporous TiO2/SiO2 Composite Prepared by a Combined Sol-Gel and Hybrid Method Wen-Yuan Xu 1,2,a, Lu-Bin Wei 1,b and Ming-Biao Luo2 1 College of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China 2 Department of Applied Chemistry, East China Institute of Technology, Fuzhou, Jiangxi 344000, China a wenyuanxu@126.com, bwlb@cumtb.edu.cn Keywords: Nanocomposites; Titania-silica; Sol-gel; β-Cyclodextrin Abstract.
The mesoporous structure with large surface areas is of particular interest, as they can provide more active sites to adsorb reactant molecules, and thus enhance the catalysis activity.
It may be related to the fact that there are Ti-O and Si-O networks in the mixed oxides and Ti-O networks insert or disperse in the Si-O, which may be prevent Si-O developing three-dimensional network and pore structure connected mutually.
The mean pore diameter increase may be due to an increase of β-CD domains in the interconnected hybrid structure.
The single broad peak is typically non-ordered in nature, which reveals that TiO2-SiO2 composite has the mesoporous structure.

Computational The formation enthalpies of (Mg1-xAlx) 2Sn solution at 0K can be calculated as: ex SnAl SnMg SnxAlxMg ExEEx EH +− −− =∆ − 2 2 2 )1()1( 0 (1) Where, SnMgE 2 and SnAlE 2 are formation enthalpy of Mg2Sn and hypothetical compound Al2Sn, with reference states of hexagonal closed packed structured Mg, face centered cubic structure Al and white-Sn of body-centered tetragonal cell. ex E is excess formation enthalpy, it can be written as: ∑= − −= n i i i ex xLxxE 0 )21()1( (2) Here, iL are interaction parameters of Mg and Al in the same sublattice of Mg2Sn, which are obtained by fitting calculated formation enthalpy of (Mg1-xAlx) 2Sn at different composition.
Table 2 Property of Mg2Sn and Al2Sn in antifluorite structure compound method lattice parameters formation enthalpy modulus ( Å ) (kJ/mol) (Mbar) Bulk modulus C11 C12 C44 Mg2Sn LDA 6.661 -22.8534 0.474 0.808 0.207 0.371 GGA 6.803 -22.23 0.409 0.726 0.227 0.330 Expt. 6.739[16] -27.419 [17] 0.413 [18] 0.824[18] 0.208 [18] 0.366[18] Al2Sn LDA 6.34 29.53 0.514 GGA 6.45 26.59 0.418
At some x considered, we do calculations for several possible ionic arrangements, so as to determine the energetically favored structure.
(Wiley, New York, 1986) [10] D.R. lide: CRC Handbook of Chemistry and Physics, 73rd ed (CRC press, Boca Raton, 1993) [11] www.webelements.com/webelements/ elements [12] C.W.

For the organic matter that are difficult to be oxidized such as the benzene ring structure, NaClO can hydrolyze the organic molecule into a longer organic chain by opening the benzene ring structure of the organic matter via the strong oxidation of HClO and [O].Compared with the ring structure, organic matter with chain structure can be removed more easily during the coagulation process.
References [1] Yi Liao, Zhoulan Yi and Peng Li: submitted to analysis of organic compounds in chemistry supervision of power plant (2008) [2] Guoyong Du: submitted to Chemical Engineering of Oil and Gas (2003) [3] Tao Yang, Jinxiang Fu and Jianhao Liang: submitted to Indusrial Water and Waste water (2005) [4] Xinqiang Wang, Liping Liang and Juan Xie submitted to Industrial Water Treatment (2006) [5] S.D.Boyce and J.F.Homig: submitted to Environmental Science and Technology (1983) [6] Xiangwu Zhou, Xiaojun Wang, Jiao Liu and Wei Wang: submitted to Chlor-alkali Industry (2006) [7] Dazhong Qian in: Water treatment engineering of power plant chapter, 10, China Electic Power Publishing (1998) [8] Hui Jiang, Di Fan and Juan Wang: submitted to Science and Management of Environment (2010)

Introduction Due to the specific physics, chemistry and mechanics properties, especially the energy absorption property under impact, metal foam is mainly used as energy absorption and shielding structure [1].
Ashby, Cellular Solids: Structure And Properties, Cambridge University Press, 1988
Kyriakides, Dynamic crushing of aluminum foams: Part II – Analysis, International Journal of Solids and Structures, 51 (2014) 1646-1661
Li, A numerical study on the rate sensitivity of cellular metals, International Journal of Solids and Structures, 46 (2009) 3988-3998

Introduction In recent years, One-dimensional nano-structure materials have become a new research hotspot in field of materials science because of its special advantages such as optical, electrical, magnetic and other properties.
Electrospinning technique is an effective method to prepare one-dimensional nano-structure materials and has been widely used in preparation of inorganic nanofibers recently [1].
It is expected to get some special properties and applications in case that the luminescent material is a one-dimensional nano-structure.
However, there’s no report about Sr2MgSi2O7: Eu2+, Dy3+ in one-dimensional nano-structure has been published currently.
Synthesis of Blue Long-Lasting Phosphorescent Material Sr2MgSi2O7:Eu2+, Dy3+ by Coprecipitation Method [J].CHINESE JOURNAL OF INORGANIC CHEMISTRY, 26(1),p.79-83 (2010)

The research on penetration of New Annular MEFP Tao Zhou 1, a, Zhonghua Du 2, b and Lili Song3, c 1Xi’an Modern Chemistry Research Institute, Xi’an, 710065, China 2Nanjing University of Science and Technology, Nanjing, 210094, China 3 Beijing Aerospace Institute of Microsystems, Beijing, 100094, China awangfeng5356@aliyun.com, bduzhonghua@yahoo.com.cn, cnjsll1234@163.com Keywords: annular MEFP, formation, penetration Abstract: According to the detonation wave collision theory, initiation from two ends of charge, the liner will close to the middle to form high velocity MEFP.
The MEFP warhead structure was proposed by Yin JianPing and Wang ZhiJun, and the detonation wave formation and growth to be carried on the thorough analysis [2].
This EFP is based on linear charge structure and beneficial to the detonation wave collision.
Based on the annular MEFP structure, because of the axial radius of curvature it can be form closed and high penetrator.
The structures of equal and unequal liner are showed as Fig.4, it keeps the thickness with the peak of the liner as 2mm, one is equal liner, and the other is unequal liner.

Preparation and Photocatalytic Properties of Fe-Doped TiO2 Nanocrystalline Composite Particles LIAO Haidaa, Ma Jinlie, Dai Jian College of Chemistry and Ecology Engineering ,Guangxi University for Nationalities, Nanning 530006, China a lhd21c@tom.com Keywords: suspension polymerization, TiO2 nanocrystalline composite particles, photocatalysis Abstract.
The micron TiO2 particles obtained have microscopic nano-structure of doped mixed crystal, which have extended the absorbed wavelength of TiO2, increased photocatalytic efficiency, and meanwhile, maintained the high activity of nano-particles, and been favorable for separation, recovery and reuse.
It is seen that, the products are porous particles with hollow structure accumulated by nanocrystals.
The TiO2 nanocrystals are porous particles with hollow structure accumulated by nano-particles, with average particle size of 29nm.The TiO2 doped with Fe 3+ ion has high catalytic activity for the degradation of methyl orange, with Fe 3+'s doping content of 0.5% (mass fraction) as optimal value.
If the TiO2 nanocrystals are controlled at mixed crystal structure, they would have better catalytic effect, so the control of calcinations temperature is very important.

Especially it has the advantages of low density, internal porosity, uniform morphology and composition, and a certain strength and robustness.The physical performance of the micro-structure of ceramisite include rough and porous surface.
outflow The schematic diagram of experimental setup was shown in Fig.1, and the discharge reactor was made of glass with two parallel stainless steel electrodes with point-like protrusions structure on the surface.
The molecular structure of methylene blue was shown in Fig.2, the entire molecular symmetry distribution.
pump aeration tube ceramisite electrodes High voltage power Fig.1 Schematic diagram of experimental setup Fig.2 Molecular structure of methylene blue Results and discussion The element proportion and the surface characteristics of ceramisite were shown in Table 1 and Table 2 respectively.
Plasma chemistry and plasma processing.

Background Composites were widely used in aircraft load-carrying structure materials because of its excellent strength, stiffness, anti-fatigue performance and durability.
Effective Non Destructive Testing (NDT) technology for the composite structure damage inspection with continuous monitoring has important significance.
The optical fiber sensor has many unique advantages, for example, small, material compatibility, distribution measurement, and so on; thereby optical fiber intelligent materials and structures are developing very quickly in recent years [1-5].
Smart Mater Structure.Vol.4 (1995), p.93-98
Materials Chemistry and Physics.56(1) (1998),p. 91-95.

melting point [ºC] hardness [Hv] density [g/cm3] structure TiC 3200 3000 ~ 3200 4.93 FCC TiB2 3225±20 ~ 2600 4.52 HCP VC 2699±50 2400 ~ 3000 5.48 FCC Table 1: Properties of the alloyed particles.
In the surface alloyed layer of the TiC surface alloy, conglomeration of cubed primary TiCs of 5~10 µm and eutectic structures were present relatively uniformly throughout the specimen (Fig. 1a, b).
In the TiC surface alloy, primary precipitation of cubic TiCs and eutectic structure without any fine precipitates were observed.
In the case of VC, complete melting and a well developed cellular structure with elongated VCs along cell walls, and high density of fine VCs in the cell interior, resulted in very much improved hardness and wear resistance.
Techn. 84 (1996), p.398 [2] Liang Shi, Yunle Gu, Luyang Chen, Zeheng Yang, Jianhua Ma and Yitai Qian: Inorganic Chemistry Communications 7 (2004), p.193 [3] H.