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This can be explained from the characteristics of the activated carbon where the commercial activated carbon has a very well develop pores structures in contrast to jackfruit peel activated carbon.
Both jackfruit peel activated carbon (JPAC) and commercial activated carbon (CAC) were analyzed to determine their physical and chemical characteristics i.e. surface morphology, surface structure and pore arrangement were obtained from the Scanning Electron Microscopy (SEM) experiment, and the elemental analysis was found via Energy-dispersive X-ray spectroscopy (EDX) analysis.
Based on the surface morphology analysis (refer Figure 4) it is clearly shown the surface morphology of CAC (Figure 4.b) is more porous and the pore structures are well developed compared to JPAC (Figure 4.a).
[2] Manahan S., (1984) Environmental Chemistry, Book/colei California, USA [3] Bingau P., Lonsdale H., and Pinho M, (1986).

Materials Curcuminoids (> 95%) extracted from natural turmeric, containing > 80% curcumin were purchased from local market, namely Vietnam Institute of Industrial Chemistry (VIIC).
In order to compare the effect of dispersed medium on the stability of curcumin in molecular form and in encapsulated structure (nano form), the absorption spectra of curcumin powder dispersed in the aqueous environments were also measured.
The main reason for this finding is the presence of emulsions with layer structure resulting in slower curcumin leakage from the inner hydrophobic area, because leaked curcumin can be gradually degraded during storage.
Furthemore, the nano structure can help to improve physiochemical properties and stabilities of curcumin.
Jachak, Recent developments in chemistry and biology of curcumin analogues, RSC Adv. 4 (2014) 13946–13978

Synthesis and Characterization of hollow core-shell ZrO2@void@BiVO4 visible-light photocatalyst Binghua Yao1,a, Min Liu1,b, Zhanying Ma1,2,c and Cheng Wang1,d 1Department of Applied Chemistry, Xi’an University of Technology, Xi’an, P.R.
China 710048 2Department of Chemistry, Xianyang Normal University, Xianyang, P.R.
However, the TEM image of ZrO2@BiVO4 exhibited no obvious nanovoid structure except some ‘‘pores’’on the rough surface.
The results indicate that ZrO2 was highly dispersed on the surface of BiVO4 nanoparticles as amorphous, and had not affected the crystal structure of BiVO4.
Secondly, the mass transfer between reactants and the catalyst-active sites may be influenced by the structure of the shell.

The composition of bath used for EN coating is high phosphorous and therefore resulting in an amorphous structure and consequently rougher surface.
The amorphous structure provides high corrosion resistance [8].
Combination effect of amorphous structure and nylon particles on surfaces makes EN Nylon composite coating more corrosion resistance than EN coating.
[6 ] B Bozzini, C Martini, PL Cavallotti, E Lanzoni, “Relationship Among Crystallographic Structure, Mechanical Properties and Tribological Behavior of Electroless Ni–P(9%)/B4C Films”, Wear 225–229 (1999) 806–13
Ramkumaar, “FTIR and Thermal Studies on Nylon-66 and 30% Glass Fibre Reinforced Nylon-66” E-Journal of Chemistry 6 (1) (2009) 23-33

Preparation and Characterization of Layered Rare Earth Compound Lin Zhang1, Wei Yang1, Yanyan Zhang1, Wangyan Shi1, Danyu Jiang2, Qiang Li1* 1Department of Chemistry, East China Normal University.
According to previous report [9], the material we prepared have a pure 9-fold coordination in the pillared framework structure in contrast to pillared framework structure Ln2(OH)5X·2H2O (X= Cl−and NO3−) involving the copresence of 8- and 9-fold lanthanide coordination [10].
The 9-fold Ln-O coordination is reminiscent of the UCl3-type Ln(OH)3, a nonlamellar structure built by closest packing of {Ln(OH)9} subunits [11].
The {LnO9} polyhedra in the pillared structure can be derived from Ln(OH)3 by substituting one-third of the OH groups with three oxygen atoms, one from the COO group and the other two from H2O molecules.
And the inhibited growth direction of the nanosheets can be determined to be (001), because the nanosheets with a large area lies along the Cu grid, this provided a strong evidence that the intralayer structure of the Y1.9Eu0.1(OH)5[C6H5COO]·2H2O remained the originated crystalline during the exfoliation.

(a) Schematic illustration of spin-coating set-up on quartz crystal microbalance (QCM) surface; (b) chemical structure of chitosan and α-pinene Results and Discussion The QCM was coated with chitosan/α-pinene via the spin-coating method.
If analyte that injected has the same or similar structure and shapes with a cavity, there will be a selective recognition process between imprinting polymer and analyte.
Fig. 4 also shows that the response of the sensor to γ-terpinene is high but less than the response of the sensor to α-pinene because the structure of γ-terpinene is similar to α-pinene.
The response of ethanol, n-amyl alcohol, and isopropanol is small because the structure of them is not similar to α-pinene. α-pinene does not have hydroxyl group as charachteristic structure of ethanol, n-amyl alcohol, and isopropanol.
The response of the sensor to acetone is slightly higher than ethanol, n-amyl alcohol, and isopropanol but less than α-pinene and γ-terpinene because acetone has a similar structure with α-pinene in the carbon group, but does not have an aromatic ring as α-pinene has.

Teachers are asked both to be familiar with the principles of the mechanical structure of the instrument, and to master the multi-disciplinary knowledge of the different test instruments, such as optical spectroscopy, electromagnetism, thermal chemistry, and crystallography, etc..
The testing instruments possess the complicated structure, different models of equipment and operation steps.
In order to achieve the desired effect of teaching, introduction about the structure and operation of the experimental apparatus should be explained by existing instrument resources in school.
Moreover, the cases with production realities are also selected, such as when the analysis of XRD and SEM are introduction, the analysis of composition and structure of common carbon tool steel can be for the case.
The material phase properties, structure and performance of samples were analyzed.

The spraying performance of the nozzle depends on the structure, quality and using method of nozzle.
Flowing in Nozzle Nozzle Structure.
swirl-core body cap seal via hole spiral groove Fig. 1 Structure of a swirl-core nozzle Fig. 2 Structure of the swirl core The fluid are divided into 2 parts while entering the swirl chamber through the spiral groove.
Non-structured grid model of the fluid in the swirl-core is shown in Fig.3.
Jin: University Chemistry, Vol. 19 (2004) No. 6, pp. 1-8.

Ciela K [10,11] for radiation processing of starch physicochemical properties, crystal structure were studied.
Analysis of spectra The so-called spectrum analysis is based on the experiments mapping infrared spectra absorption peak position, intensity and shape, the use of group vibration frequency and molecular structure of the relationship, to determine the ownership of the absorption band to confirm molecule contained in the group or bond, and then estimating the molecular structure.
RADIATION PHYSICS AND CHEMISTRY, 2002, 64(PII S0969-806X(01)00458-32): 137-148
Effect of Gamma Irradiation on Molecular Structure and Physicochemical Properties of Corn Starch[J].
Construction mechanism of reticular structure of plant fiber[J].

Because of the complex spinel structure the functional characteristics of single crystals and ceramics depend on the processing conditions of this material.
Also spinel structure can be formed in the wide range of constituent oxides (1.0 ≤n ≤ 3.5).
The infrared (IR) properties of spinel are sensitive to its chemistry and internal structure, which by-turn is defined by composition and methods of crystal preparation.
Yamanaka, Structure and lattice vibrations of Mg-Al spinel solid solutions, Phys.
Fukatsu, Defect structure of alumina-rich nonstoichiometric magnesium aluminate spinel, Solid State Ionics 177 (2006) 59-64