Publications – LGCgE

@article{ZHANG2023130107,

title = {Interlayer adsorption of cationic dye on cationic surfactant-modified and unmodified montmorillonite},

author = {Li-Lan Zhang and Ali Zaoui and Wassila Sekkal and YuanYuan Zheng},

url = {https://www.sciencedirect.com/science/article/pii/S030438942201901X},

doi = {https://doi.org/10.1016/j.jhazmat.2022.130107},

issn = {0304-3894},

year  = {2023},

date = {2023-01-01},

urldate = {2023-01-01},

journal = {Journal of Hazardous Materials},

volume = {442},

pages = {130107},

abstract = {Water pollution by toxic organic dyes is one of the most critical health and environmental problems worldwide. By means of molecular dynamics method, the present work aims to evaluate the applicability of montmorillonite (Mt) modified by hexadecyltrimethylammonium cations (HDTMA+) compared to unmodified Na-Mt for the adsorption of cationic methylene blue (MB) dye. The results showed that the adsorption energy of MB on both HDTMA-Mt and Na-Mt absorbent ranged from − 100 to − 250 kJ/mol, indicating the effectiveness of two types of adsorbents in dye water treatment. The highest adsorption energy was found at w = 50% in each adsorbent system. Adsorption mechanisms of MB depend on molecular orientations, which is influenced by the surfactant and water content. The adsorption mechanism of MB is chemisorption dominated by strong electrostatic interaction between CH3 groups of MB and oxygen atoms of Mt surfaces. Besides, physisorption also plays a minor role in MB orientations. It is found that the existence of cationic surfactants can slightly improve the adsorption capacity of MB only at higher water content through enlarging the interlayer space of Mt and reducing mobility of MB. However, there will be a negative impact on the reduction of adsorption sites for dyes especially at low water content. Our results provide a possible application for swelling clay minerals being a promising adsorbent for dyes-surfactants co-existing wastewater treatment.},

note = {ACL},

keywords = {ER1},

pubstate = {published},

tppubtype = {article}

}

Close

2023Journal Article ER1

Auteurs : Saadedine, Mahrez; Zaïri, Fahmi; Ouali, Nourdine; Tamoud, Abderrahman; Ding, Ning; Mesbah, Amar

A micromechanical model for the swelling effect on visco-super-elastic and damage self-healing behaviors of hydrogels reinforced by nanoparticles

In: Mechanics of Materials, vol. 176, pp. 104511, 2023, (ACL).

Links

2023Journal Article ER1

Auteurs : Dziri, Ayyoub; Montagne, Alex; Roudet, Francine; Ziouche, Katir; Chicot, Didier

Martens hardness of Constantan thin films on (100) Si wafer: Improvement in contact area function in nanoindentation

In: Thin Solid Films, pp. 139712, 2023, (ACL).

Links

2023Journal Article ER1, ER2

Auteurs : Taleb, Maria; Bulteel, David; Betrancourt, Damien; Roudet, Francine; Rémond, Sébastien; Montagne, A.; Chicot, Didier

Multi-scale mechanical characterization of the interface in 3D printed concrete

In: Materials and structures, vol. 56, no. 1, pp. 24, 2023, (ACL).

Links

2023Journal Article ER1, ER2

Auteurs : Taleb, Maria; Bulteel, David; Betrancourt, Damien; Roudet, Francine; Rémond, Sébastien; Chicot, Didier

Interfacial Weakness Criterion by Indentation in 3D Printed Concrete

In: 3D Printing and Additive Manufacturing, vol. 10, no. 2, pp. 318-329, 2023, (ACL).

Links

2023Journal Article ER1

Auteurs : Wang, Wei; Duan, Xuelei; Jia, Yun; Bian, Hanbing; Chen, Liang; Zhu, Qizhi; Cao, Yajun

Damage evolution of sandstone based on acoustic emission under different seepage conditions

In: European Journal of Environmental and Civil Engineering, vol. 27, no. 4, pp. 1796-1812, 2023, (ACL).

Links