Interlayer adsorption of cationic dye on cationic surfactant-modified and unmodified montmorillonite

Lilan, Zhang; Zaoui, A.; Sekkal, W.; Zheng, Yuanyuan

doi:10.1016/j.jhazmat.2022.130107

Cited by 58 publications

(14 citation statements)

References 52 publications

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“…Modification of inorganic layered silicates by cationic surfactants is the most investigated modification method by researchers. [10][11][12] As a new generation of cationic surfactants developed in recent years, quaternary phosphonium salts are very versatile and can be used as biocides, inorganic clay modifiers, preservatives, and phase transfer catalysts. [13][14][15] Compared with quaternary ammonium salts of the same molecular structure, quaternary phosphonium salts are easier to synthesize, have higher heat resistance, lower liquid crystal state onset temperature and wider liquid crystal phase temperature interval.…”

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confidence: 99%

Preparation and properties of vermiculite modified by triphenylbutylphosphonium bromide and PBAT composite film

Pei,

Shang,

et al. 2023

Polymer Composites

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In this study, quaternary phosphonium salt (P4) was prepared, vermiculite (VMT) was modified by P4, and P4@VMT/poly (butylene adipate‐co‐terephthalate) (PBAT) composite film was prepared by the solution method. The structure of the synthesized P4 was determined by nuclear magnetic resonance and infrared. The structure and performance of P4 modified vermiculite were explored and analyzed by particle size, XRD, infrared and micro‐morphology. The structure, thermal properties, crystallization properties, rheological properties, cross‐section morphology, tensile properties and antibacterial properties of pure PBAT film and P4@VMT/PBAT composite film were tested and compared. The results show that the crystallization temperature and melting temperature of P4@VMT/PBAT composite film are higher than those of pure PBAT film. With the increase in P4@VMT content, the thermal stability of the composite film becomes worse, and the crystallization enthalpy, melting enthalpy and crystallinity also decrease, while the storage modulus, loss modulus and complex viscosity of P4@VMT/PBAT composite film increase significantly. In addition, compared with pure PBAT film, the tensile strength of P4@VMT/PBAT‐20% composites decreased by 12.0% and the elongation at break decreased by 95.7%.Highlights Successful synthesis of phosphonium quaternary P4 and modification of vermiculite. The properties of P4@VMT/PBAT composite films with different contents were studied.

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confidence: 99%

Preparation and properties of vermiculite modified by triphenylbutylphosphonium bromide and PBAT composite film

Pei,

Shang,

et al. 2023

Polymer Composites

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“…The stripping of montmorillonite induced MXene oxygen functionalization and enhanced photocatalytic activity can achieve catalytic degradation of a wide range of organic pollutants (Liu et al, 2022) and cationic surfactant-modi ed montmorillonite can enhance interlayer adsorption of cationic dyes, and it is a promising adsorbent for wastewater treatment with dye-surfactant coexistence. (Zhang et al, 2022) Loess particles can be used in many applications, but there are many components in loess particles, and the single use of loess particles as loess particles will reduce the e cient use of loess particles. The above examples clearly show the use of any component of loess particles, therefore, a simple separation method for the separation of loess particle components is needed to improve the usage rate of loess particles.…”

Section: Resultsmentioning

confidence: 99%

A simple and efficient method for loess separation and composition analysis

Zhao,

Huang,

Zhou

et al. 2023

Preprint

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Loess is a widely existing cheap natural inorganic material, due to its complex composition and insufficient understanding of its efficient utilization and repeated utilization, it has not been widely used. Therefore, in this article, a simple method with buoyancy and gravity sedimentation to separate loess into large, medium and small particles. Besides, the main components of different particle size loess particles were provided. The separated particles were characterized by Scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), Brunauer-EmmettTeller (BET), Thermal gravity (TG), X-ray diffraction (XRD), X-ray fluorescence spectrum (XRF), and X-ray photoelectron spectroscopy (XPS). It was found that the mineral compositions in large, medium and small loess particles vary with particle size. The large loess particles contains more aluminosilicate, medium loess particles contains both aluminosilicate and clay. It can play different roles according to the content of different particle sizes of loess particles, and realize the efficient use of loess particles. The main component of small loess particles is clay. Clay particles have a wide range of applications and can be used for adsorption as well as catalytic degradation of pollutants as a catalyst carrier. Therefore, it is necessary to separate loess by a simple method to improve its utilization rate.

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“…By selecting suitable organic surfactants and clay minerals and controlling the loading of organic modiers, materials can be prepared with desired properties, such as increased retention capacity for anionic and non-polar compounds. 3,[10][11][12] The adsorption capacity and surface properties of montmorillonite were greatly affected by different types of modiers and the loading of modiers. The exchange of interlayer cations leads to changes in the interlayer space dimension, surface charge and wettability, and swelling pressure.…”

Section: Introductionmentioning

confidence: 99%

Interlayer structure and dynamic properties of CTMAB–montmorillonite: experiment and molecular dynamics

et al. 2023

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Interlayer adsorption of cationic dye on cationic surfactant-modified and unmodified montmorillonite

Cited by 58 publications

References 52 publications

Preparation and properties of vermiculite modified by triphenylbutylphosphonium bromide and PBAT composite film

Preparation and properties of vermiculite modified by triphenylbutylphosphonium bromide and PBAT composite film

A simple and efficient method for loess separation and composition analysis

Interlayer structure and dynamic properties of CTMAB–montmorillonite: experiment and molecular dynamics

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