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Preparation of nanoparticulate YFeO3 by microwave method and its load Peisong Tanga, Lingxiang Jiab, Junyue Zhuc, Zhen Jiangd, Tingting Line, Chaowan Tangf, Haifeng Cheng Department of Material and Chemistry, Huzhou Teachers College, Huzhou 313000, China atangps@163.com, bjialingxiang123@qq.com, czhujunyue123@qq.com, djiangzhen512@qq.com, elintingting515@qq.com, ftangchaowan907@qq.com, gheadder@hutc.zj.cn Keywords: YFeO3, microwave method, load, visible-light photocatalysis Abstract.
Conclusions Using Fe(NO3)3×9H2O, Y(NO3)3×6H2O and PVA as the main raw material, the perovskite structure nanoparticulate YFeO3 was synthesized by a microwave process.
Ye, Photocatalytic degradation of MB on MIn2O4 (M = Alkali Earth Metal) under visible light: Effects of crystal and electronic structure on the photocatalytic activity.
Kudo, Photocatalytic H2 evolution reaction from aqueous solutions over band structure-controlled (AgIn)(x)Zn2(1−x)S2 solid solution photocatalysts with visible-light response and their surface nanostructures.

Extraction and Analysis of Degradable Polyethylene Residues in Soil Xiaoli Xiong 1, a, Xuegang Luo2, 3,b, Cheng Chen2, 3,c 1College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China 2Engineering Research Center for Biomass Materials, Ministry of Education, Mianyang, 621010, China 3School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China a971560620@qq.com, blxg@swust.edu.cn,cbaluhejian@yahoo.com.cn, Keywords: polyethylene powder, extraction, soil Abstract.
The FT-IR spectra and the high temperature gel permeation chromatography (HT-GPC) illustrates that no significant changes in chemical structure and molecular weight and molecular weight distribution of PE after the extraction.
The recovery rate and structure characterization, as well as molecular weight of PE samples were investigated respectively.
It can be clearly seen that there is no new absorption peak emerged and also no original absorption peak disappeared during the extraction, which indicates that the molecular structure of PE did not change before and after the extraction process.
The FT-IR spectra and HT-GPC results show that there is no significant changes in both the chemical structure and molecular weight as well as molecular weight distribution before and after extraction.

Isotherms for Aqueous potassium Adsorption and Characterization of Natural Pyrophyllite CHEN Haifenga, TANG Peisongb, XU Minhongc and CAOd Feng Department of Chemistry, Huzhou Teachers College, Huzhou 313000, China aheadder@hutc.zj.cn, btangps@hutc.zj.cn, cminhongxu@hutc.zj.cn, dcaofeng@hutc.zj.cn Keywords: Pyrophyllite, potassium, Langmuir, Freundlich, Dubinin–Radushkevich Abstract.
The crystal structure of pyrophyllite, size and morphology were characterized by XRD and SEM.
The original sample of SP (Fig. 2) showed large flat crystals with occasional book like stacked structure.
Some flaky structured materials appeared to be micaceous minerals were also found occasionally as is evident.
Ab Initio study of sorption on pyrophyllite: structure and acidity of the edge sites[J], J.

The dynamic light scattering (DLS), the Fourier Transform Infrared (FTIR) spectrocospy and the Transmission Electron Microscopy (TEM) were used to characterize the size and the chemical structure of the nanoparticle.
According to Ulanski and Rosiak, crosslinking polymerization in the emulsion system leads to the formation of smaller particles, due to the intraparticle crosslinking and to the hampered diffusion of monomer molecules to the structure [5].
This study also revealed that the sample undergoes intramolecular crosslinking due to the intraparticle crosslinking of the radicals and to the hampered diffusion of monomer molecules to the structure [5].
After irradiation, the shape of the APO nanoparticle is unidentified and it seemed that the nanoparticle is diffused to a compact structure (Fig. 3c).
Rosiak: Radiation Physics and Chemistry Vol. 63 (2002), p. 533 [2] J.M.

This is because of a conformation change of the PCDA backbone structure [14, 15].
Those strong absorption spectra corresponded to a conjugated backbone structure with excitation of p-p* and n-π* electrons [19].
Thus, the addition of SDS, the structure of which is similar to PCDA monomer, assists the Pb2+ binding ability of PDA.
We also thankful to Chemistry Program, Department of Science, Faculty of Science and Technology, Nakhon Sawan Rajabhat University for the facilities.
Oaki, Effects of the intercalation rate on the layered crystal structures and stimuli-responsive color-change properties of polydiacetylene, J.

EPS on bacteria surface consists of double-layer structure [14].
LB with relatively loose structure is located in the outer of TB and can extend to form mucus layer without obvious edge.
Farr: Journal of Biology and Chemistry Vol. 193(1951), p. 265 [12] L.
Li: Environmental Chemistry Vol. 25 (2006), p. 722 [13] F.
Flemming, in: Microbial Extracellular Polymeric Substances: Charactreization, Structure and Function, Berlin Springer (1999) [15] S.

Introduction MMT is a hydrous layered hydroxyl silicate mineral with naturally unique two-dimensional nanolayer structure.
Furthermore, due to the weak MMT structure unit layer and the interlayer interaction, positive ions can be exchanged[6].
References [1] Huang Jitai, Research of Clay Minerals Structure Characteristics and Its Application, J.
Structural Chemistry. 1996,15(6): 438-443
Journal of Materials Chemistry. 2003,13 (9): 2359-2366

Seregin, Dependence of Fine Structure of Fluorescence Spectrum Glasses AsxSe1-x, Excited By X-Ray, Bremsstrahlung on the Parameters of the X-Ray Tube, News of the Russ.
Povarov, Determination of Sulfur and Trace Elements in Petroleum Coke by X-ray Fluorescent Spectrometry, Coke and Chemistry 60(6) (2017) 247–253
Kozhokar et al., Determination of the Composition of Multicomponent Chalcogenide Glassy Semiconductors by X-ray Fluorescence Analysis, Phys. and Chemistry of Glass. 39(4) (2013) 545–552
Vargunin, Molecular Structure of AsxSe100-x Glasses Studied by X-ray Spectroscopy, Inorganic Mater. 43(8) (2007) 897–900
Nalivaiko, Nanostructured Layers of Chalcogenide Semicomductors – Structure, Optical Properties, Application, Geo-Siberia 5(1) (2009) 210–214

The theory of non-structural reservoir formed in In twentieth Century 30-40.In the second half of the twentieth Century,with Rapid development ofOil and gas exploration theory and technology, petroleum geology theorys were relevant to all areas of petroleum geology. applicated plate structure theory in petroliferous basin analysis and integrated and penetrated Geology with geochemistry Since 1980, Integrated study on Oil and gas reservoir formation conditions and distribution have carried out All over the world.
Its characteristics is based on modern geological theory, apply mathematics, physics, chemistry and Biology, use advanced computer and test, simulation technology, and Quantitatively study on mechanism, rate and process of oil and gas generation, migration, accumulation and preservation.
Deep basin gas theory On 1979, Masters called gas reservoir in sandstone in the lower position or central syncline structure as deep basin gas.
People have been able to on the applicate the seismic data and drilling and logging data to predicte and identify basin structure, sedimentary facies types and regional distribution in basin simulation.the sign of comprehensive development is the comprehensive analysis of sea level change by P.R.Vail et al ( 1988) and literature published by Sangree, Wagoner and Mitchum et al.
Oil and gas geochemical method and technology As a branch of earth chemistry, Oil reservoir geochemistry is developed in the late 80's, is product of the traditional organic and inorganic geochemistry and geological reservoir.

Fluorescence analysis of Cu(II), Pb(II) and Hg(II) ion binding to humic and fulvic acids Vojtěch Enev 1,a *, Irena Türkeová 1,b, Jana Szewieczková 1,c, Leoš Doskočil 1,d and Martina Klučáková 1,e 1Institute of Physical and Applied Chemistry, Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, Brno, 612 00, Czech Republic axcenev@fch.vutbr.cz, bxcturkeovai@fch.vutbr.cz, cxcszewieczkovaj@fch.vutbr.cz, ddoskocil@fch.vutbr.cz, eklucakova@fch.vutbr.cz Keywords: humic substances, titration, steady-state fluorescence spectroscopy, Stern-Volmer equation, fluorescence quenching Abstract.
The fact that ESFA exhibited lower EET/EBz ratio than ESHA indicates that the aromatic structures in ESFA probably have been substituted by a greater degree with aliphatic functional groups.
These results show that the aromatic structures in ESHA have higher degree of substitution with O-containing functional groups.
Higher value of E4/E6 ratio of ESFA maybe indicates the presence of structures with lower molecular weight and degree of humification.
Two adjacent aromatic carboxyl groups (i.e., a phthalic acid-like binding site) and an aromatic carboxyl group and adjacent phenolic OH group (i.e., a salicylic acid-like binding site), in the HA structure are known to form highly stable bidentate complexes with metal ions [8].