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Preparation of Nitrogen-doped TiO2 /slide glass photocatalyst and application for determination of chemical oxygen demand of pesticide phoxim in circulating photoreactor Jinfen Niu 1, a , Binghua Yao 2, b , Zengfu Jin 3, c 1, 2, 3Department of Applied Chemistry, Xi’an University of Technology, Xi'an 710054,China aemail:niujinfen@xaut.edu.cn bemail:bhyao@xaut.edu.cn cemail:huaxue99@126.com Keywords: titanium dioxide, N-doped film photo catalyst, COD, pesticide phoxim Abstract.
X-ray diffraction and SEM were employed to characterize the morphology, structure of the N-TiO2 photocatalyst.
On the contrary, some new but lower diffraction peaks were found under 600℃, it is more appropriate to ascribe its crystal structures to rutile with anatase phase.

Synthesis of Thiourea-Formaldehyde Resin for Cr3+ Removal Mulati Mansuer1,a, Pengfei Wu2,b, Zhirong Zhu3,c, Zhixian Hao4,d* 1Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China amuratmansur@126.com , b0820104048@tongji.edu.cn , czhuzhirong@tongji.edu.cn, dhaozhixian@tongji.edu.cn Keywords: thiourea-formaldehyde resin, metal ions adsorption, cross-linked Abstract.
The thiourea(T) -formaldehyde(F) resins with different lamellar crystal structures were synthesized by varying the relative T/F molar ratio in acidic aqueous solution at 55˚C.
Urea(U)-Formaldehyde(F) resin, for example, sufficiently exploited as hydrophilic adhesives in wood industry, possesses typical cross-linked polymer structures.
Herein, the transformation in lamellar TF resin structure and its absorption to Cr3+ are present, varying with T/F molar ratio in its synthesis reaction.
Results and Discussion Morphology and Structure Characteristics of TF Resin.

Depending on the trigonal molecular structures and different substituted headgroups, these amphiphiles showed distinct assembly behaviors in the organized molecular films.
In addition, since the organized supramolecular structures are very sensitive to and dependent on the molecular structure of the amphiphiles, the design of amphiphilic molecules is of the utmost importance.
The structures of these molecules were confirmed by 1H NMR.
Chemical structures and abbreviations of trigonal Schiff base amphiphiles.
Lehn, Supramolecular Chemistry: Concepts and Perspectives, Wiley-VCH, Weinheim, 1995

Introduction Corrosion of metal is a serious problem in the operation of metal structures of any kind.
The structure of the glass is strengthened in this case.
To study the structure of this coating, microscopic studies were carried out.
Cochrane, Ananalysis of the microstructure and interfacial chemistry of steel–enamel interface, Thin Solid Films. 443(2003) 33–45
Ryabova, Synthensis and Investigation of White Glass-Ceramic Enamel Coatings for Steel Products, Glass Physics and Chemistry. 43 (2017) 1

Coal chemistry is the foundation of coal’s comprehensive utilization technology and coal organic chemical structure and composition is always the core issue of coal chemical.
Coal solvent extraction separation and analysis at the molecular level is the key to determine coal chemical structures [1].
Samples came from original structure coal in Pingdingshan 5th coal mine(OP5), tectonic coal in Pingdingshan 5th coal mine(TP5), original structure of coal in Pingdingshan 8th coal mine(OP8) and tectonic coal in Pingdingshan 8th coal mine(TP8).
Mechanochemical Action and Deformed Coal Structure [D].
The Characterization of Pore Structure Property of Solvent Extracts and the Composition of the Fractions; [D].Chongqing: Chongqing University,2003: 1～12(in Chinese)

Liquid crystal is mesomorphic structure.
After incorporating M. alba stem extract, it was observed that the lamellar structure still remained.
In this study, the optical pattern under polarized microscope was observed to confirm the lamellar structure.
It was found that after storing for 3 months, the lamellar structure of all formulations was retained.
Ponec, Structure of the skin barrier and its modulation by vesicular formulations, Prog.

Experimental Study on Heat Transfer of Bellows Shao-feng YAN1,a, Shi-hong FENG 2 and Yue-qiu SUN3 1Faculty of Mechanical Engineering & Automation, Liaoning University of Technology, Jinzhou, 121001, China; 2College of Chemistry & Environmental Engineering, Liaoning University of technology, Jinzhou 121004, China; 3Bohai Shipbuilding Vocational College , Huludao 125000, China; E-mail:yansf1963@163.com; Keywords: Bellows, Condensation heat transfer, Enhancement heat transfer, Formula for heat transfer Abstract.
The effect of bellows structure parameters and pipe diameter on the enhancement heat transfer has been investigated.
Introduction Heat transfer of bellows is remarkable widely used in recent years because of its simple structure, convenient processing, and heat transfer enhancement effect.
In this paper, twice curve fitting method is used to research the influence of structure parameters on heat transfer of bellows, receiving the relation of the convective heat transfer coefficien of bellows' inside and outside, which provides evidence for the reasonable structured design of Bellows Tube Heat Exchanger[3].
At first, using Willson fitting curve isolation method [3] to establish the bellow's internal heat transfer coefficient correlation within a certain structure size.

And The structure of corrosion layer and the eroded degree are relative to the height of the strap alloys above the plate.
The structure of corrosion layers and the morphology of its crystals were observed by SEM.
The porous structure would lead to the further corrosion.
Thus it can be concluded that the structure of corrosion layer and the degree eroded were relative to the height of the strap above the electrolyte.
The structure of corrosion layer and the eroded degree are relative to the height of the strap alloys above the plate.

Research on core-shell TiO2/Al2O3 by one-step hydrothermal Liu Zhiping 1, a, Li Changming1,b and Yin Lisong1,c 1 Analytical and Testing Center ,Wuyi University ,Jiangmen ,Guangdong , 529020, China a ping_liu42@163.com, b lichangming@126.com, cyinlisong2000@163.com Keywords: Hydrothermal;Core-shell;Coating Abstract: The core-shell structure’s synthesis process by one-step hydrothermal method has remarkable peculiarities, such as simple procedures and short production cycles.
In order to get the precursor with the core-shell structure, it’s important to study the technological parameters.
The significance of the nano-particle surface modification is that people can have more freedom on the modification of nano-particle, not only the physical and chemical effects of nano-particle can be understood, but also the application of nano- particle can be extended; The purpose of nano-particle’ surface modification may be classified into four aspects ,that is improving or changing the dispersibility of nano-partical, increasing the surface activity of nano-partical, creating new effects of physics, chemistry, mechanical properties or new functions on the surface of nano-particals and improving the compatibility of the nano-particals with other materials[1-2] .
However, traditional process of the core-shell structure’ synthesis is based on the first nano nuclear particle and then envelope, furthermore, it must go through the late crystallization heat treatment, thereby core-shell structure synthesis in this method is complex with long cycle and much production costs.
Whereas the core-shell structure’s synthesis process by one-step hydrothermal method don’t need made the nano core as a prerequisite and has the same advantages of hydrothermal synthesis of Nano-powders. therefore, this method can lower production costs, simplify the process line with the prospect of industrial application[3].

It was identified that the formed phases were close to the ordered orthorhombic structure of Al3Ni type.
The phases with different structure image from that of Al matrix were observed.
The lamellar structure with different contrast indicates that each lamellar layer composes of structure with different compositions.
In order to confirm the lamellar structure, HAADF-STEM image was observed.
[8] H.Kinoshita, H.Takahashi and R.Gotthardt:Materials Chemistry and Physics, 81(2003)424