scholarly journals Synthesis and characterization of alkyl polyglucoside surfactant: A pilot tool to industrial applications

2021 ◽  
Author(s):  
CI Chemistry International
Keyword(s):  
Critical Micelle Concentration ◽  
Surfactant Concentration ◽  
Industrial Applications ◽  
Industrial Processes ◽  
Synthesis And Characterization ◽  
Ionic Surfactant ◽  
Uv Visible ◽  
Gas Chromatography Mass Spectroscopy ◽  
Alkyl Polyglucoside

In this study, alkyl polyglucoside surfactant was synthesized and the critical micelle concentration (CMC) was determined. The synthesized product was quantified using Gas Chromatography-Mass Spectroscopy (GC-MS). The CMC of the surfactant was evaluated using UV-visible Spectrophotometer. The critical micelle concentration (CMC) value was obtained from the sharp break in the plot of absorbance measurements versus surfactant concentration. The critical micelle concentration (CMC) of the surfactant was found to be 0.50 mol/dm3. This result showed a precise value for the CMC of non-ionic surfactant; since the value of the CMC obtained was lower than the stock solution of the surfactant prepared. The standard change in Gibbs free energy of the micelle (ΔGoCMC) showed that the process was feasible and spontaneous having the value of − 1.716 kJ/mol. This study recommends that akyl polyglucoside should be widely used for both domestic and industrial processes in view of the environmentally friendly nature, which are safe to use partially.

scholarly journals Synthesis and characterization of new complexes of Co+2 , Ni+2 , Cu+2 and Zn+2 with (Sodium acetate thio ) ethylene ligands

2013 ◽  
Vol 10 (3) ◽  
pp. 650-657
Author(s):  
Baghdad Science Journal
Keyword(s):  
Content Analysis ◽  
General Formula ◽  
Metal Content ◽  
Sodium Acetate ◽  
Magnetic Measurement ◽  
Synthesis And Characterization ◽  
Square Planar ◽  
Square Planar Complexes ◽  
Uv Visible

This research involves the preparation of new ligands 1,1,2,2- tetrakis (sodium acetate thio)ethylene(L1) and 1,1,2- tris(sodiumacetatethio) ethylene(L2), through the reaction of disodium thioglycolate) with tetra chloro ethylene or tri chloro ethylene in (1:4) or (1:3) moler ratio . Homodinucliar complexes of general formlu [M2(L1)] and [M2(L2)ClH2O] , when M= Co(II), Ni(II), Cu (II) and Zn(II) also mono nuclear complexes of general formula [M(L2)] . The prepared complexes were characterized using spectral method (UV/Visible/ IR) , metal content analysis , magnetic and atomic measurements . The spectral and magnetic measurement indicats that some complexes have tetrahedral or square planar complexes environtment .

Synthesis and Characterization of Gold Nanoparticles Synthesized in Gel and Paper by Electrolysis

2019 ◽  
Vol 824 ◽  
pp. 163-167
Author(s):  
Pema Dechen ◽  
Ekasith Somsook
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Gold Nanoparticles ◽  
Room Temperature ◽  
Synthesis And Characterization ◽  
Visible Spectroscopy ◽  
Gold Leaf ◽  
Uv Visible ◽  
Scanning Electron

In this report, synthesis and characterization of gold nanoparticles (AuNPs) from gold leaf by electrolysis in two different media (gel and paper) in presence of sodium chloride (NaCl), glucose (C6H12O6) and polyvinyl pyrrolidone (PVP) at room temperature were investigated. Graphite was used as two electrodes, NaCl was used as an electrolyte, C6H12O6 was used as reducing agent and PVP was used as stabilizer to control the aggregation of the nanoparticles. UV-Visible spectroscopy (UV-Vis) and scanning electron microscopy (SEM) were used to confirm the characteristics and morphologies of the synthesized AuNPs.

Synthesis and characterization of calcium–alumino-silicate hydrates from oil shale ash – Towards industrial applications

Fuel ◽  
2008 ◽  
Vol 87 (10-11) ◽  
pp. 1998-2003 ◽  
Author(s):  
Janek Reinik ◽  
Ivo Heinmaa ◽  
Jyri-Pekka Mikkola ◽  
Uuve Kirso
Keyword(s):  
Oil Shale ◽  
Industrial Applications ◽  
Synthesis And Characterization ◽  
Oil Shale Ash ◽  
Alumino Silicate ◽  
Shale Ash

Synthesis and Electrochemistry of Aluminum Porphycenes: Crystal and Molecular Structure of Methyl-σ-Bonded Aluminum Etioporphycene

1997 ◽  
Vol 01 (02) ◽  
pp. 109-119 ◽  
Author(s):  
ROGER GUILARD ◽  
VIRGINIE PICHON-PESME ◽  
HASSANE LACHEKAR ◽  
CLAUDE LECOMTE ◽  
ALLY M. AUKAULOO ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Structural Data ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
H Nmr ◽  
Axial Ligands ◽  
Uv Visible

The synthesis and characterization of three monomeric aluminum porphycenes with anionic or σ-bonded axial ligands is reported. The investigated compounds are represented as ( EtioPc ) Al ( CH 3) and ( EtioPc ) AlX where EtioPc represents the dianion of etioporphycene and X = Cl − or OH −. Each synthesized complex was characterized by mass spectrometry. 1 H NMR, IR and UV-visible spectroscopies as well as by electrochemistry. Comparisons are made between the properties of complexes in the aluminum etioporphycene series and related chloro- or methyl σ-bonded Al ( III ) porphyrins containing octaethylporphyrin ( OEP ) or tetraphenylporphyrin ( TPP ) macrocycles. Comparisons are also made between the currently investigated compounds and a previously reported Al ( III ) μ-oxo dimer, [( EtioPc ) Al ]2 O . In addition, the crystal and molecular structure of ( EtioPc ) Al ( CH 3) was determined by X-ray diffraction. The molecular structure of this methyl-σ-bonded aluminum etioporphycene provides the first structural data for an aluminum porphycene compound. The aluminum(III) atom in ( EtioPc ) Al ( CH 3) is pentacoordinated and is located 0.54 Å from the plane of the four N -nitrogens.

Microwave-Hydrothermal Synthesis and Characterization of Graphene

2012 ◽  
Vol 602-604 ◽  
pp. 917-920 ◽  
Author(s):  
Zhen Hui Xiao ◽  
Shui Sheng Wu ◽  
Yan Lin Sun ◽  
Yu Lin Zhao ◽  
Ya Ming Wang
Keyword(s):  
Chemical Reduction ◽  
Visible Spectrum ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Microwave Hydrothermal ◽  
Ft Ir ◽  
Uv Visible ◽  
Scanning Electron

Graphene was synthesized by microwave-hydrothermal chemical reduction of graphite oxide using hydrazine hydrate as the reducing agent. Graphene was characterized using X-ray diffraction, UV-visible spectrum, FT-IR spectrum and scanning electron microscopy. Results indicated that the as-prepared graphene was wrinkled and comprised fewer graphenes with a highly crystalline structure.

Direct Evidence for β-Cyclodextrin-Induced Aggregation of Ionic Surfactant below Critical Micelle Concentration

1994 ◽  
Vol 48 (11) ◽  
pp. 1428-1431 ◽  
Author(s):  
Yun-Bao Jiang ◽  
Xiu-Juan Wang
Keyword(s):  
Critical Micelle Concentration ◽  
Cetyltrimethylammonium Bromide ◽  
Surfactant Concentration ◽  
Direct Evidence ◽  
Sodium Dodecylsulfate ◽  
Fluorescence Emission ◽  
Peak Height ◽  
Ionic Surfactant ◽  
Fixed Amount ◽  
Induced Aggregation

The fluorescence emission of p-dimethylaminochalcone (DMAC) has been monitored in β-cyclodextrin (β-CD) and cetyltrimethylammonium bromide (CTMAB) or sodium dodecylsulfate (SDS) mixture. In the presence of a fixed amount of β-CD, a peak-shaped variation is observed in the curve of DMAC fluorescence intensity vs. surfactant concentration below critical micelle concentration (cmc). The peak height is dependent on β-CD concentration, and no peak is noted in the absence of β-CD. Such a peak-shaped variation in DMAC fluorescence emission is shown to be direct evidence for β-CD-induced aggregation of the surfactant below cmc in aqueous solution. The 1:1 surfactant/β-CD inclusion complex is the hydrophobic source inducing the aggregation.

scholarly journals Photoluminescence of Pentavalent Uranyl Amide Complexes

2021 ◽  
Author(s):  
Fabrizio Ortu ◽  
simon Randall ◽  
David J. Moulding ◽  
Adam woodward ◽  
Karsten Meyer ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Excited State ◽  
Charge Transfer ◽  
Synthesis And Characterization ◽  
New Family ◽  
Theoretical Investigations ◽  
Charge Transfer Transitions ◽  
Uv Visible ◽  
First Time

We report the synthesis and characterization of a new family of pentavalent uranyl amide complexes, supported also by photoluminescence and theoretical investigations. These studies reveal for the first time that the UV-visible emission of uranyl(V) is an admixture of charge transfer transitions accompanied by vibronic coupling of the quartet excited state with uranyl oxo and amide vibrations, thereby offering new insights into the electronic structure of the reactive uranyl(V)

Sign in / Sign up

Export Citation Format

Share Document