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Online since: October 2018
Authors: Rosen Avery D. Tamargo, Lance Patrick M. Buizon, Menandro C. Marquez
Scanning Electron Microscopy reveals the formation of Cu2O film and formation of secondary submicron size structures with the addition of TSCuPc.
The surface morphology of the secondary structures changes as the concentration TSCuPc increases.
C=O bonds was seen and can be attributed to the structure of PET that is used as a substrate.
S=O bonds which is a signature structure of TSCuPc was present to the samples with varying concentration of TSCuPc.
Ramos-Barrado, "Study of the Nucleation and Growth Mechanisms in the Electrodeposition of Micro- and Nanostructured Cu2O Thin Film," The Journal of Physcial Chemistry, no. 115, pp. 21373-21382, 2011.
Online since: August 2013
Authors: Atcharaporn Rattanamanee, Ruangsri Watanesk, Surasak Watanesk, Hataichanoke Niamsup, La-Ongnuan Srisombat
Effect of Gelatin on Secondary Structure, Crystallinity and Swelling Behavior of Silk Fibroin-Gelatin Hydrogelsand Its Application in ControlledRelease of Nitrogen Atcharaporn Rattanamaneea, Hataichanoke Niamsupb, La-ongnuan Srisombatc,Ruangsri Wataneskdand Surasak Wataneske* Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
The effects of gelatin on secondary structure, crystallinity and swelling ratios of the SF-gelatin hydrogels were studied.
Results and Discussion Secondary Structure The conformational transition of SF in the SF and SF-gelatin blended hydrogels was investigated using FT-IRin Fig. 1.
After treatment for 2 h at 20 °C, the peaks of amide I and amide II shifted from 1675 to 1646 cm-1 and from 1545 to 1537 cm-1(Fig. 1a), which depict β-sheet structure [7].
Acknowledgements Financial support from the Center of Excellence for Innovation in Chemistry (PERCH-CIC), Office of the Higher Education Commission (OHEC), Ministry of Education, Thailand, is gratefully acknowledged.
Online since: May 2013
Authors: Solmaz Zargari, Masoumeh Mahjoub Moghaddas, Rahim Rahimi, Rahmatollah Rahimi
Synthesis of Mesoporous V-TiO2 with Different Surfactants: The Effect of Surfactant Type on Photocatalytic Properties Rahmatollah Rahimi1,a*, Masoumeh Mahjoub Moghaddas1,b Solmaz Zargari1,c, Rahim Rahimi2,d 1Department of Inorganic Chemistry, Faculty of Chemistry, Iran University of Science and Technology, Tehran, Iran 2Purdue University, West Lafayette, IN, USA a rahimi_rah@iust.ac.ir, bmaral_mahjoum@yahoo.com, cszargari@iust.ac.ir d rrahimi@purdue.edu Keywords: vanadium doped TiO2, Surfactant effect, Sol-gel method, Photocatalytic activity Abstract.
The results showed that the surfactant type played an important role on the structure and photocatalytic activity of the samples.
As compared with P25, the presence of vanadium in TiO2 structure caused to an obvious red shift in the absorption edge of V-TiO2 samples.
The electronic structure of TiO2 can be tuned through partial substitution of Ti4+ lattice sites by V5+ or V4+ ions.
From the characterization results it was found that F127 did not modify the structure of the mesoporous V-TiO2.
Online since: December 2014
Authors: Ming Chao Che, Jie Chen
Complete polymerization and loss of solvents lead to the transition from the liquid sol into a three-dimensional network structure of the gel.
After intimate mixing of the particles, reactants react in salt melt by heating to accelerate the formation of the product structure.
The results showed that cubic perovskite and rod structure of barium titanate having an average crystallize size of 26 nm was achieved.
Sonochemical method is widely used and can be roughly divided into nine categories, including biological chemistry, analytical chemistry, catalysis chemistry, electrochemistry, photochemistry, environmental chemistry, chemical processing, mineral extraction and separation, synthesis and degradation [29].
Cho: Chemistry of Materials, Vol. 10 (1998) No.12, p.4104 [3] M.Z.
Online since: February 2021
Authors: Kadhim Suffer, Munaf S. Majeed, Rabea Q. Nafil, Marwa F. Abdul Jabbar
The results obtained from studying the structure, topography, and morphology of the product showed that the particles have a hexagonal shape.
Gondal et al. [17] manufactured ZnO and ZnO2  nano-structures by PLA with 335 nm (3rid harmonic of 1064 nm laser).
Both samples have a hexagonal crystalline structure.
Krishnan, Structure and morphologies of ZnO nanoparticles synthesized by pulsed laser ablation in liquid: Effects of temperature and energy fluence, Materials Chemistry and Physics, 162, (2015), 561-570 [19] E.
Vorokh, Scherrer formula: estimation of error in determining small nanoparticle size”, Nanosystems: Physics, Chemistry, Mathematics. 9 (2018) 364–369
Online since: March 2017
Authors: Nur Azam Badarulzaman, Suzi Salwah Jikan, Ajiya Dahiru Adamu, Shehu Yahaya
The effect of milling on the structure of kaolinite-urea intercalates were studied.
Shifting of a peak to a lower value of 2θ is observed which would be an established indication of intercalated structures of delamination.
Industrial and Engineering Chemistry Research, 49 (2010) 1503-1513
Gomes, Particle-size reduction of dickite by ultrasound treatments: effect on the structure, shape and particle-size distribution.
Plevova, Effect of brief milling and acid treatment on two ordered and disordered kaolinite structures, Appl.
Online since: June 2014
Authors: Vlad Mureşan, Mihaela Ligia Ungureşan
The details of using the PID control are pointed out, for an example of a system which contains a process with PDE II∙2 structure.
Introduction The main difference between the automatic system treated in this paper and the usual control system is the including of a distributed parameter process in its structure.
The control block scheme (the control structure) With and , the control, respectively the actuating signal are noted.
The structure parameters for the PID controller are , , and , representing successively the weighting coefficients of the proportional, integrator and derivative effects and respectively the time constant.
Hence, it is obtained the complete structure of the () matrix from (17).
Online since: April 2021
Authors: Konstantin S. Makarevich, Aleksey V. Zaitsev, Oleg I. Kaminsky
For the Cu0.05Sr0.95Bi4O7 sample, a shift of the SrBi4O7 phase reflections to the side of smaller angles due to the intercalation of copper ions into its structure is noted [20].
Mikhailov, Chemistry of bismuth compounds and materials, Novosibirsk: SB RAS. 360 (2001)
Serpone, Calcium Bismuthate Nanoparticulates with Orthorhombic and Rhombohedral Crystalline Lattices: Effects of Composition and Structure on Photoactivity, ChemistrySelect. 2(30) (2017) 9851-9863
Dong, Tuning the morphological structure and photocatalytic activity of nitrogen-doped (BiO)2CO3 by the hydrothermal temperature, corporation, Journal of Nanomaterials. 2014 (2014) 10
Beech, Beech phase equilibria and crystal chemistry in portions of the system SrO-CaO-Bi2O3-CuO, part II—the system SrO-Bi2O3-CuO, Journal of Research of the National Institute of Standards and Technology. 95(3) (1990) 291–335.
Online since: December 2016
Authors: Gitanjali Pagare
The electronic band structure (BS) and density of states (DOS) verify the metallic nature of this compound.
RX3 compounds with the AuCu3-type cubic structure exhibits a variety of phenomena [1–4].
The RE metals have high magnetic moments and a diverse range of magnetic structures.
Fig. 1(a)-1(b) Band Structure of TmPb3 On the whole, the band structures are seen to be similar in both the spins, except in the slight movement of ‘f’ like states of Tm.
Palenzona, Handbook on the Physics and Chemistry of Rare Earths, 2, (1979).
Online since: May 2014
Authors: Ji Li Zhao, Rong Yin
Prepared Patterned Magnetic Composite Microspheres by Emulsion Polymerization Rong Yin, Jili Zhao Department of chemistry and biology, Beihua University, Jilin 132013, China yinrong1223@163.com, Jili_zhao@126.com Corresponding author, Rong Yin; Email: yinrong1223@163.com; Tel: +86-18604497694 Keywords: Pattern combinations; composite microspheres; core-shell materials; emulsion polymerization.
The structure of microspheres was spherical, the size was uniform and performance is stable.
Wang: Chemistry of Functional Polymer Materials ( Chemical industry press, Beijing, 1996) [12] A.V.