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Online since: October 2010
Authors: Wei Liu, Shi Fu Chen
Visible-light Activity Evaluation of p-n Junction Photocatalyst NiO/TiO2 Prepared by Sol-gel Method Wei Liu Shifu Chen* Department of Chemistry, Huaibei Normal University, Anhui, Huaibei 235000, People’s Republic of China E-mail: chshifu @chnu.edu.cn Keywords: NiO/TiO2, Visible-light, P-N junction, Photocatalyst, Activity, Characterization Abstract.
The microcrystalline structure and surface characteristics of the photocatalyst was also investigated by using (X-650 Japan) scanning electron microscopy (SEM).
Online since: September 2013
Authors: Olubunmi Tolulope Popoola, Abraham A. Asere
It is also expected that there should be a degree of initial swelling and then contraction during devolatilization, the degree of these physical changes is a function of the type of coal and its structure.
[19] Journal: Kilpinen P. and Hupa, M. 94, 1991, Homogeneous N2O chemistry at fluidized bed combustion conditions: a kinetic fluidize study.
Online since: November 2015
Authors: S.N. Grigoriev
Indeed, when to the substrate spaced on 100 mm from the titanium target of the magnetron filed is applied a negative voltage 80 V, synthesizes a known coating which has golden color and a composition of TiN with a microhardness of 2500 HV, columnar structure and the width of the interface less than 0.1 μm.
Book Series: NATO science series, Series II: Mathematics, physics and chemistry (2004)
Online since: June 2009
Authors: Dan Donescu, Cristina Lavinia Nistor, Violeta Purcar, Sever Serban, Constantin Radovici, Valentin Raditoiu, Christian Petcu, Marius Ghiurea
Silver-Polymer Nanohybrids Prepared by Microemulsion Polymerization Dan Donescua , Cristina Lavinia Nistor b , Violeta Purcar, Sever Serban, Constantin Radovici, Valentin Raditoiu, Cristian Petcu, Marius Ghiurea National Research & Development Institute for Chemistry and Petrochemistry -ICECHIM, Polymer Department, Bucharest, Romania a ddonescu@chimfiz.icf.ro, b lc_nistor@yahoo.com Received June 15, 2008; Revised April 7, 2009; Accepted May 28, 2009 Keywords: poly(styrene), poly(butyl acrylate), poly(methyl methacrylate), nanolatexes, silver nanoparticles Abstract.
The modifications observed from the thermal stability analysis pointed out the existence of some special interactions between the Ag° particles obtained at the end of the synthesis process and the chemical structure of the polymers from latex.
Online since: November 2011
Authors: Fu Jia Yu, Shan Cai, Shan Zhi Deng, Roger Horn, Ze Hong Wang
The effects and associated mechanisms have been dealt with in three principal forms: (1) Reduction of material strength, by the action of electrolytes and surfactants on the defect structure of the material
In either case, there is no rational for optimization of grinding aids chemistry beyond trial and error.
Online since: September 2003
Authors: Reinhard Krause-Rehberg, N.Yu. Arutyunov
Hence, the primary distribution of oxygen along the axis of the crystal qrowth contains various centres whose electronic structure is formed under the conditions of changes of the concentrations of the interstitial oxygen, carbon and intrinsic point defects.
Workshop on Positron and Positronium Chemistry ( Milwaukee, 199: ed. by Y.S.Jean), World Scientific, Singapore, 1990, p.518 [7] N.Yu.Arutyunov, A.V.Mikhailin, V.Yu.
Online since: September 2017
Authors: Saidat Olanipekun Giwa, Abdulwahab Giwa, Danladi Yakubu Said, Mustapha Danladi Ibrahim
., in such a way that the coagulant causes these suspended and dispersed particles to destabilize and agglomerate to form large and dense structures (flocs) that will precipitate and sediment.
Sahu, Reduction of COD and color by polymeric coagulant (chitosan), Journal of Polymer and Biopolymer Physics Chemistry, 1(7) (2013) 22-25
Online since: September 2013
Authors: Yuan Li, Bing Wang, Song Chao Tang, Zheng Fang Cao, Li Liang Meng
In order to achieve good compatibility, the molecular structure of solvation chains should be similar to that of unsaturated polyester resin which has medium polarity with Solubility parameter about 17.0~20.5 based on the like dissolves like principle, and the dispersant with polar groups on main or side chain such as Polyether, polyester, polyacrylate can meet this criterion (23-25).
Journal of Polymer Science Part A: Polymer Chemistry, Vol. 46(18) (2008) , p. 6185-6197
Online since: November 2025
Authors: Truddy Theron-Beukes, Kedir Bushira, Priskila Mutilifa, Johannes Sirunda
Clarified water flows over a weir structure inside the tank and enters a flocculation hopper, where any formed floc sinks to the bottom.
This method followed protocols to maintain the water’s chemistry and included all aspects of sampling, such as storage, lab delivery, and on-site measurements.
Online since: November 2012
Authors: Wen Yong Wang, Xiao Juan Ma, Gao Ping Fu
Its terrain and land-type is complex and diverse, intertwined with plains and hills, or mountains and canyons, cities and villages, or forests and farmland, land and water, which leads to the structure of atmospheric boundary layer very complicated.
Frontier and Prospect of environmental chemistry [M].