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Assembly of Monodisperse Silica Spheres by Micro-Electrophoretic Deposition Process Jun-ichi Hamagami, Kazuhiro Hasegawa, and Kiyoshi Kanamura Department of Applied Chemistry, Graduate School of Engineering, Tokyo Metropolitan University 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan Keywords: electrophoretic deposition process, micro-counter electrode, local electric field, silica colloidal suspension, particle assembly ABSTRACT We demonstrate a process by which highly-controlled micrometer-size particle assembling can be achieved by an electrophoretic deposition (EPD) process with a micro counter electrode.
In these techniques, however, difficulties are often encountered in the fabrication of highly-ordered structures with nanometer- or micrometer-size periodic arrays, because the formation of a periodical structure depends on natural precipitation of microspheres.
We also notice that the packing of the silica particles was hexagonal and the (111) plane of a face-centered cubic (fcc) structure was clearly observed in Fig. 3 (b).

Adsorption behavior and kinetics of methyl orange in water on activated carbon Yonghong Wu1, a, Qi Yu1, Hongda Xu2, Zhiyong Liu3, Mingzhu Sun1, Jing Zhu1 1 School of Petrochemical Engineering, Shenyang University of Technology, Liaoning Liaoyang 111003 2 Jinxing Chemical Plant, Liaoyang Petrochemical Fiber Company, Liaoning Liaoyang 111003 3 School of Chemistry and Chemical Engineering, Shihezi Univerisity, Xinjiang Shihezi 832003 a wuyhcat@163.com Keywords: Activated carbon; Methyl orange; Adsorption; Isotherm; Kinetics Abstract.
Physical method is conducted in an inert or partial oxidative atmosphere by pyrolyzing carbonaceous precursor, followed by activation (weak oxidation) of gaseous activator to form or to widen the resultant porous carbon structure.
Besides, its convenient control of porous structure and surface functional groups of AC through process parameters, can meet different requirement of users [3-5].
Then, the porous structure becomes saturated with time and is hard to further adsorb at equilibrium.

The Coating Property Study of (Meth)Acrylate Copolymer with Gradient Wettability Surfaces Yong Zhang1*, Jiang Cheng2 1 Guangzhou Panyu Polytechnic, Guangzhou, 511483, China 2 School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China *gzpypzy@163.com Keywords: Coating performance; (Meth)acrylate copolymers; Gradient wettability; 2-Hydroxyethyl methacrylate; Cross-linking reaction Abstract.
Fig. 2 demonstrated the structure of curing agent and the product name was CYMEL 303.
Considering the chemical structure of amino curing agent as shown in Fig. 2, we studied that the amount of curing agent and the curing temperature.
Table 1 Effect of different crosslinking monomers on the properties of copolymer coating Monomers Hardness Adhesion MEK resistance Heat resistance (200 ˚C) HEA HB 1 120 Yellow HPMA HB 1 40 No change HEMA H 1 ＞200 No change Table 2 Effect of HEMA contents on the properties of copolymer coating Contents (wt %) Hardness Adhesion MEK resistance Heat resistance (120 ˚C) 20 2H 3 ＞200 No change 15 2H 2 ＞200 No change 10 2H 2 ＞200 No change 5 H 1 ＞200 No change 2 HB 1 50 No change (MMA/BA=6/4, curing agent was CYMEL 303) Table 3 Effect of HEMA on the slope of gradient wettability surfaces Comonomers with HEMA without HEMA n-BMA i-BMA t-BMA MMA/BA n-BMA i-BMA t-BMA MMA/BA ΔWCA/° 49 46 17 66 15 12 6 36 (MMA/BA=6/4, the NaOH solution was 1 mol dm-3, immersing time was 2 h) Fig.1 Contact angle of P (MMA-BA-HEMA) Fig.2 Chemical structure of CYMEL 303 Table 4 Effect of the amount of CYMEL 303 on the properties of copolymer films CYMEL 303/g 0.248 0.62 1.24 1.86 2.48 NaOH erosion time

Hot-water extraction may destroy acetyl and furfural acid substitutions on hemicelluloses chemical structure, and generate acetic acid and other low molecular organic acids.
This may be closely related to their chemical structures.
As we know, hemicelluloses structures in plant fiber are usually combined with groups of lignin in the form of lignin-carbohydrate complexes (LCC) [5].
BJ10-14), Shaanxi province key laboratory of papermaking technology and specialty paper, and the key laboratory of auxiliary chemistry & technology for chemical industry and ministry of education.

Nakahira 5, e 1, 5 Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan 2, 3 Shiraishi Central Lab.
In coatings and membranes on support, their adhesive strength is weak due to heterogeneous structures, while synthesis takes very long time.
Accordingly, it was found that product by HHP treatment with 17wt% of 5M-NaOH could be solidified with considerally dense structure.
Acknowledgement This study was partly supported by Collaborative Research Project of Materials and Structures Laboratory, Tokyo Institute of Technology.

Development of a new rotary solar photocatalytic reactor Xuhui SUN 1,3,a,, Jiaqing CHENG 1,b, and Lin SUN 2,c 1 Chemical Engineering College, Northeast Dianli University, Jilin City 132012, PR China 2 College of Chemistry, Jilin University, Changchun 130023, PR China 3 National Engineering Research Center of Urban Water Resources, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin City 150090, PR China acsxuhui@yahoo.com, b chengjiaqing1234@sina.com, csunlinrose@hotmail.com, Key words：rotary; solar; photocatalytic ; reactor Abstract: In order to make full use of sunlight and improve photocatalytic degradation efficiency, a new rotary solar photocatalytic reactor with focus reflector was designed.
The structure of reactor is closely related to photocatalytic reaction conditions.
The structure diagram of the rotary solar photocatalytic reactor (tilt tank).
The detail structure diagram of rotary solar photocatalytic reactor.

Characterization of lanthanum nitrate modified CaMgZn mixed oxide catalysts for synthesis of biodiesel LI Xue1,a, ZHOU Zi-yuan1,b, ZHU Li-wei1,c, JIANG Jian-xin1,d* 1Department of Chemistry and Chemical Engineering, Beijing Forestry University, Beijing 100083 asxbxue@126.com, bziyuanbeijing@163.com, cZhulw1969@yahoo.com.cn, djiangjx2004@hotmail.com (*corresponding author) Keywords: La(NO3)3; catalysis; catalyst characterization; glycerol yield Abstract CaMgZn mixed oxide (CMZ) catalysts were modified by addition of lanthanum nitrate, and the use of modified catalysts (CMZL) for biodiesel synthesis were investigated.
The structure of CMZL which has the highest catalysis property in the transesterification process was estimated by X-ray diffraction peaks in Fig.1.
The structure makes it easier for soybean oil and methanol to come into full contact, thus improving the catalytic activity of CMZL catalysts.
The results indicated that CMZL had a structure of rich pores, which is supposed the reason for its high catalytic activity.

Preparation and Characterization of C@PSt microspheres by High Speed Homogenization-Assisted Suspension Polymerization Hongbo Liua, Jihu Wangb, Shaoguo Wenc, Wenjun Gand, Xuqiane Shenyanf College of Chemistry and Chemical engineering, Shanghai University of Engineering Science, Shanghai 201620, P.
As shown in fig.3, there are not obvious core-shell structure when using the carbon black particles without any modification, however, spherical composite particles with the carbon in the core and polymer in the shell can been seen when using carbon black modified by oleic acid.
As shown in fig.4, SEM photos also proved the sample B had good spherical structure and the size of the microspheres was about 2μm.
The composite microsphere containing 10wt% of carbon black had good spherical structure and with size around 2μm.

Synthesis of Ti(C,N)/Al2O3 by Mechanically Induced Self-propagating Reactive Synthesis Jianfeng Zhu a, Lan Ye, Hai Tong and Fen Wang Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi'an 710021, China) azhujf@sust.edu.cn Keywords: Ti(C,N), Al2O3, composite, high energy milling, Mechanism.
The phase structure showed that the obtained samples have less N than the targeted composition, and this large deviation of the final phase structure from the theoretical calculation was mostly attributed to the low N2 pressure in high energy milling process.
The grains interlaced with each other to form a mesh-like structure to inhibit grain growth of Ti(C,N) and Al2O3, so as to improve the mechanical properties of the composite, such as hardness and flexural strength.

A Rigaku X-ray diffraction system was used to determine the film structure.
The X-ray diffractograms obtained for ZnO thin films (Figure 1) deposited at different substrate temperatures reveals the existence of a single-phase ZnO with a hexagonal wurtzite structure [15] of the bulk ZnO.
For low dopant concentrations, we observed a slightly decrease in the crystallite size which could be related to the initial disorder introduced by the dopant in the zinc oxide structure.
Basu: Materials Chemistry and Physics, 34 (1993) pp. 41 ff