Advances in Research on Adsorption Characteristics of Alkylammonium in Montmorillonite Inter-Layer Space

2012 ◽  
Vol 454 ◽  
pp. 3-6
Author(s):  
Jun Qiu ◽  
Dian Biao Liu ◽  
Ping Chen ◽  
Xian Jun Lu
Keyword(s):  
Interlayer Space ◽  
Adsorption Characteristics ◽  
Alkyl Ammonium ◽  
Long Chain

Adsorption Characteristics and controlling methods of long-chain alkyl ammonium cations in montmorillonite interlayer space are theoretic evidence of the montmorillonite/alkylammonium complexes in the process of preparation. This paper summarizes the advances in research on adsorption characteristics of alkyl ammonium in montmorillonite inter-layer space.

scholarly journals Spontaneous intercalation of long-chain alkyl ammonium into edge-selectively oxidized graphite to efficiently produce high-quality graphene

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Liangming Wei ◽  
Fei Wu ◽  
Diwen Shi ◽  
Changchen Hu ◽  
Xiaolin Li ◽  
...  
Keyword(s):  
High Quality ◽  
Oxidized Graphite ◽  
Alkyl Ammonium ◽  
Long Chain

scholarly journals Controlled synthesis of brightly fluorescent CH3NH3PbBr3perovskite nanocrystals employing Pb(C17H33COO)2as the sole lead source

RSC Advances ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 1132-1139 ◽  
Author(s):  
Xiaoming Fu ◽  
Zhiwei Peng ◽  
Chi Zhang ◽  
Yong Xia ◽  
Jianbing Zhang ◽  
...  
Keyword(s):  
Controlled Synthesis ◽  
Lead Source ◽  
Alkyl Ammonium ◽  
Long Chain

At an optimal short to long-chain alkyl ammonium ratio of 4 : 6, the growth of CH3NH3PbBr3nanoplatelets can be selectively suppressed with Pb(C17H33COO)2as the sole lead source, enhancing the PLQY of the produced CH3NH3PbBr3nanocrystals.

Adsorption of Lippia multiflora essential oil on two surfactant-modified clays: qualitative approach

Clay Minerals ◽  
2020 ◽  
pp. 1-10
Author(s):  
Soumahoro Gueu ◽  
Vama Etienne Tia ◽  
Danièle Bartier ◽  
Odile Barres ◽  
Fatogoma Dolourou Soro
Keyword(s):  
Essential Oil ◽  
Interlayer Space ◽  
X Ray Diffraction ◽  
Gauche Conformation ◽  
Alkyl Chains ◽  
Modified Clays ◽  
Lippia Multiflora ◽  
Internal Surfaces ◽  
Ir Analysis ◽  
Alkyl Ammonium

Abstract This paper deals with the adsorption of an essential oil (EO) on a kaolinite-rich clay and a smectite-rich clay. The two clays were modified with a quaternary alkyl ammonium surfactant to create a lipophilic environment for better adsorption of the EO. The preparation of the clay/EO hybrids avoided the use of a slurry and organic solvent. The selected EO was that of Lippia multiflora. This EO has insecticidal properties. The surfactant was trioctyl methylammonium (TOMA). The modified clays were characterized by X-ray diffraction (XRD) and infrared (IR) spectroscopy. The smectite-rich clay displayed greater adsorption of the L. multiflora EO compared to the kaolinite-rich clay. The interlayer space of the kaolinite-rich clay was not affected by the adsorption of the TOMA and/or EO molecules, which suggests that the adsorption in this clay took place on the external surface. By contrast, a significant increase in the interlayer space of the smectite-rich clay was observed, suggesting that the adsorption process of TOMA and/or EO took place on both the external and internal surfaces. The IR analysis showed that the surfactant loading in the interlayer space of the smectite-rich clay introduces a gauche conformation in the alkyl chains. A formulation mixing this local smectite-rich clay and the L. multiflora EO has potential for the manufacture of new biopesticides.

Corrosion Inhibition of Gemini Surfactant for Copper in 3.5% NaCl

2014 ◽  
Vol 936 ◽  
pp. 1125-1131 ◽  
Author(s):  
Kun Cao ◽  
Hu Yuan Sun ◽  
Bao Rong Hou
Keyword(s):  
Photoelectron Spectroscopy ◽  
Gemini Surfactant ◽  
Inhibition Efficiency ◽  
Copper Surface ◽  
Optimum Concentration ◽  
Nacl Solution ◽  
X Ray ◽  
Head Groups ◽  
Alkyl Ammonium ◽  
Long Chain

A new gemini surfactant containing long chain alkyl ammonium headgroups have been used as corrosion inhinbitor for copper in 3.5% NaCl solution. The weight loss and electrochemical methods results showed that presence of inhibitor greatly decrease corrosion rate, gemini surfactant acted as an excellent corrosion inhibitor with inhibition efficiency greater than 96% at an optimum concentration of 30 mg·L-1. X-ray photoelectron spectroscopy reveals that the gemini surfactant molecules adsorb onto the copper surface through the two ammonium head groups (N+).

The adsorption characteristics and mechanism of montmorillonite with different layer charge density for alkyl ammonium with different carbon chain length

2021 ◽  
Author(s):  
Jun Qiu ◽  
Kaibo Cui ◽  
Peng Wu ◽  
Guowei Chen ◽  
Yueting Wang ◽  
...  
Keyword(s):  
Charge Density ◽  
Chain Length ◽  
Chemical Properties ◽  
Carbon Chain ◽  
Layer Charge ◽  
Carbon Chain Length ◽  
Crystal Chemical ◽  
Adsorption Characteristics ◽  
Alkyl Ammonium

The crystal chemical properties of montmorillonite and the length and amount of straight alkyl ammonium chain affect the adsorption characteristics of alkyl ammonium on montmorillonite.

Sign in / Sign up

Export Citation Format

Share Document