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Study on the advanced treatment of dyeing wastewater by photocatalytic-H2O2 Huixia Lan1,2,a, Ping Ma1,b, Jian Zhang1,c, HuiJie Li1,d, Heng Zhang3,4,e Shanhong Lan5,f 1College of Environment and Safe Engineering, Qingdao University of Science & Technology, Qingdao, 266042; 2Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037; 3College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao, 266042; 4State Key Laboratory of Pulp and Paper Engineering , South China University of Technology , Guangzhou, 510640, China P.R.China 5College of Chemistry and Environmental Engineering,Dongguan University of Technology, Dongguan, Guangdong, 523808 alanhuixia@163.com, btzmp2008@vip.qq.com, c2605240989@qq.com, d272935708@qq.com, ehgzhang@sina.com, flllssshhhh@126.com Keywords: Photocatalytic; dyeing wastewater; advanced treatment; nano-zinc oxide; COD removal rate.
Fig.1 ZnO XRD at 500 ˚C Fig.2 ZnO TEM at 500 ˚C As showed in Fig.1, the diffraction peak position and intensity of ZnO was same with JCPDS (No.36-1451) card of pure ZnO, six hexagonal wurtzite structure, and no other peaks of impurities, showed that the purity of ZnO was high.

The sulfocompound and the element S may enable the outer electronic structure of Ni atoms to transform to (3d)8(4s)2 from (3d)9.4(4s)0.6 so as to accelerate the active dissolution of Ni[6,7].
Materials Chemistry and Physics, Vol. 97 (2006), p.37–49.

Rahim Ruslinda1,f, R.M Ayub1,g Nano structure lab on chip research group 1Institute Nano Electronic Engineering, Universiti Malaysia Perlis.
Lieber Analytical Chemistry, July 1. 2006 [13] Nanowire Nanosensors for highly sensitive and selective detection of biological and chemical species Y.

Due to their high surface areas, distinctive netlike structure and high micropororsity, electrospun nanofibers have caught much more attention from academic and industry fields[4].
PBST samples with degree of polymerization of 110,000 were purchased from Shanghai Institute of Organic Chemistry, Chinese Academy of Science.

Helmholtz proposed the Helmholtz model at the first time to explain the double-layer structure.
The CDCs structure has an important effect on the supercapacitor’s capacitance.
Two template synthesis methods have proved to be the suitable way for the preparation of mesoporous structured carbons for they provide with a defined pore structure and narrow pore size distribution.
Journal of Materials Chemistry A, 7(14), 8633–8640. https://doi.org/10.1039/c9ta01028a [19] Homola, T., Pospíšil, J., Krumpolec, R., Souček, P., Dzik, P., Weiter, M., & Černák, M. (2018).
Journal of Physical Chemistry C, 120(25), 13406–13413. https://doi.org/10.1021/acs.jpcc.6b04045 [24] Guo, F.

First, anodizing was used to create a micro/nano structured aluminium oxide layer on the aluminium alloy substrate.
However, the addition of roughness to the surface can increase the water contact angle of without altering surface chemistry.
In Figs. 1a-b the presence of a micro/nano structure of the anodized surface (before plasma coating) can be observed.
Fig. 1a shows uniform spongy forms, while the magnified image of Fig.1b shows the presence of pores structured as a “hexagonal bird’s nest” separated by thinner pore walls.
SEM images showed the homogeneous and coral-like structure of the plasma polymerized film deposited on the anodized surface.

Glassy structure presents an inherent hydrophilic surface enabling spontaneous physically weak interactions, as ionic binding of biomolecules are satisfactorily attained through conventional wetchemical functionalization [7,8].
The O-SiCl3 is believed to be the dominant surface structure after plasma cycling.
Such a structure is stable with functional groups tagged on to additional reactive radicals incorporation.
Fig. 3 schematically presents the desired chemistry sequence.
Figure 3 - Schematic sequence of reaction mechanism from plasma induced radicals and derivation steps with the most probable structures grafted.

Adsorption of CuCl2 on Mg-Al HTlc: Effect of EDTA and Addition Sequences Yunbo Zang 1, a, Naiying Wu 1,b 1 College of Chemistry and chemical engineering, Shangqiu Normal University, China azangyunbo112@163.com, bwunaiy@163.com Keywords: Sorption; hydrotalcite-like compounds; copper(Ⅱ) Abstract In this study, removal of copper ions from aqueous solutions by synthetic Mg-Al-HTlc was investigated as a function of contact time, EDTA and addition sequences at room temperature.
The metal hydroxide layers have structures similar to that of brucite, Mg(OH)2, in which divalent cations are octahedrally surrounded by hydroxyl groups, with the resulting octahedra sharing edges to form infinite sheets.
The XRD patterns of the HTlc indicated that the HTlc sample is of a well-crystallized hydrotalcite-type structure.
It can be seen from Fig. 1 that the Cu(II) sorption did not changed the layered crystal structure and the basal spacing (d003) of the HTlc.
X-ray absorption fine structure combined with fluorescence spectrometry for monitoring trace amounts of lead adsorption in the environmental conditions.

During welding, the beneficial effects of the solution treatment are lost and heavily unbalanced structures with excess of ferrite can be found if the fusion zone chemistry and the corresponding structure are not modified by the addition of tailored filler metals. [4, 5] Cooling rate has a significant factor on ferrite-austenite ratio of weld metal.
At low cooling rate, in other words at high heat input, austenite has sufficient amount of time to nucleate and grow as ferritic structure cools down.
Optical micrographs taken at higher magnification showed that the corresponding structure was made up of elongated grains of primary ferrite, as shown in Fig.4a.

�ickel Ferrite �anocrystallites Synthesized by Sol-Gel and Coprecipitation Methods: A Comparative Study Mingwei Li1, a, Cuiping Liu1, 2, b and Xiaomei Gao1, c 1 Department of Chemistry, Tianjin University, Tianjin 300072, China 2 Department of Material Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China a mingweili@tju.edu.cn, bliucuiping@eyou.com, cxiaomeigotju@126.com Keywords: Nanocrystallines, Microstructure, Chemical synthesis, Magnetic materials Abstract.
Introduction Nanosized nickel ferrite (NiFe2O4) with inverse spinel structure is an important kind of functional material.
Our research on magnesium ferrite indicated that most of the sol-gel-derived particles had a lamellar structure being probably derived from the porous xerogel precursor [4].
The samples' crystalline structures were analyzed by an X'Pert Pro power X-ray diffractometer (XRD).
From XRD spectra of the samples, the spinel structure of NiFe2O4 was detected.