Synthesis, characterization, stability, aqueous surface activity, and aqueous solution aggregation of the novel, cationic siloxane surfactants (Me3SiO)2Si(Me)-(CH2)3+NMe2(CH2)2OR X- (R = hydrogen, acetyl, N-phenylcarbamyl; X = chloride, bromide, iodide, nitrate, methyl sulfate)

Langmuir ◽  
1993 ◽  
Vol 9 (2) ◽  
pp. 424-430 ◽  
Author(s):  
Steven A. Snow
Keyword(s):  
Aqueous Solution ◽  
Surface Activity ◽  
The Novel ◽  
Methyl Sulfate ◽  
Aqueous Surface ◽  
Solution Aggregation

scholarly journals Trimethylamine-N-oxide: its hydration structure, surface activity, and biological function, viewed by vibrational spectroscopy and molecular dynamics simulations

2017 ◽  
Vol 19 (10) ◽  
pp. 6909-6920 ◽  
Author(s):  
Tatsuhiko Ohto ◽  
Johannes Hunger ◽  
Ellen H. G. Backus ◽  
Wataru Mizukami ◽  
Mischa Bonn ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Aqueous Solution ◽  
Molecular Dynamics Simulations ◽  
Surface Activity ◽  
Vibrational Spectroscopy ◽  
Biological Function ◽  
Molecular Simulations ◽  
Structure Surface ◽  
Dynamics Simulations ◽  
Hydrophilicity And Hydrophobicity

Vibrational spectroscopy and molecular simulations revealed the hydrophilicity and hydrophobicity of TMAO in aqueous solution.

scholarly journals Carbon Nitride-Perovskite Composites: Evaluation and Optimization of Photocatalytic Hydrogen Evolution in Saccharides Aqueous Solution

Catalysts ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1259
Author(s):  
Andrea Speltini ◽  
Lidia Romani ◽  
Daniele Dondi ◽  
Lorenzo Malavasi ◽  
Antonella Profumo
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
The Novel ◽  
Starch Solution ◽  
Raw Starch ◽  
Co Catalyst ◽  
Simulated Solar Light ◽  
Neat Water ◽  
Optimized Conditions

The application of hybrid photocatalysts made of carbon nitride and lead-free perovskites, namely DMASnBr3/g-C3N4 and PEA2SnBr4/g-C3N4, for the H2 evolution from saccharides aqueous solution is described. The novel composites were tested and compared in terms of hydrogen evolution rate (HER) under simulated solar light, using Pt as a reference co-catalyst, and glucose as a representative sacrificial biomass. The conditions were optimized to maximize H2 generation by a design of experiments involving catalyst amount, glucose concentration and Pt loading. For both materials, such parameters affected significantly H2 photogeneration, with the best performance observed using 0.5 g L−1 catalyst, 0.2 M glucose and 0.5 wt% Pt. Under optimized conditions, DMASnBr3/g-C3N4 showed a 5-fold higher HER compared to PEA2SnBr4/g-C3N4, i.e., 925 µmoles g−1 h−1 and 190 µmoles g−1 h−1, respectively (RSD ≤ 11%, n = 4). The former composite, which affords an HER 15-fold higher in aqueous glucose than in neat water, provided H2 also with no metal co-catalyst (around 140 µmoles g−1 h−1), and it was reusable for at least three photoreactions. Encouraging results were also collected by explorative tests on raw starch solution (around 150 µmoles g−1 h−1).

Unexpected ultrafast and highly efficient removal of uranium from aqueous solution by phosphonic acid and amine functionalized polymer adsorbent

2021 ◽  
Author(s):  
Qinghua Zhang ◽  
Shiao Zhang ◽  
Jizhou Zhao ◽  
Peng Wei ◽  
Changfu Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Phosphonic Acid ◽  
Environmental Safety ◽  
The Novel ◽  
Important Work ◽  
Efficient Removal ◽  
Novel Technologies ◽  
Resource Sustainability ◽  
Amine Functionalized ◽  
Polymer Adsorbent

It is still an important work to develop the novel technologies for the highly extraction of uranium from aqueous solution for resource sustainability and environmental safety. Herein, a novel phosphonic...

Aggregation behaviours and bactericidal activities of novel cationic surfactants functionalized with amides and ether groups

RSC Advances ◽  
2015 ◽  
Vol 5 (34) ◽  
pp. 27197-27204 ◽  
Author(s):  
Guangzhou Cao ◽  
Xiangfeng Guo ◽  
Lihua Jia ◽  
Xuhua Tian
Keyword(s):  
Aqueous Solution ◽  
Surface Activity ◽  
Cationic Surfactants ◽  
High Surface ◽  
Bacterial Activity ◽  
Aggregation Behaviors ◽  
Bactericidal Activities ◽  
High Surface Activity

Novel cationic surfactants exhibit high surface activity, interesting aggregation behaviors in aqueous solution and excellent bacterial activity.

Synthesis and Properties of Novel Carboxylate Gemini Surfactant

2011 ◽  
Vol 201-203 ◽  
pp. 2695-2699
Author(s):  
Jie Li ◽  
Qiao Mei Chen ◽  
Rong Ming Zhang ◽  
Wei Tong
Keyword(s):  
Aqueous Solution ◽  
Gemini Surfactant ◽  
High Surface ◽  
The Novel ◽  
Displacement Reaction ◽  
Oil Sand ◽  
Acylation Reaction ◽  
Anionic Gemini Surfactant ◽  
S Model ◽  
High Surface Activity

The novel anionic gemini surfactant, isodium salt of N, N’, N”- trilauroyl-diethylenetriamine diacetate(TDAD), was synthesized with ethylenediamine, sodium chloroacetate and lauroyl chloride by displacement reaction and acylation reaction. The results show that TDAD has fairly low critical micelle concentration (cmc) and high surface activity. The adsorption isotherm of TDAD at the interface of oil sand/aqueous solution is taken on “S” model, and the adsorption loss of TDAD is much lower than that of the traditional monomer sodium laurate (SL).

Sign in / Sign up

Export Citation Format

Share Document