Results 1 to 10 of about 61,037 (183)

Shape and Structure Formation of Mixed Nonionic–Anionic Surfactant Micelles [PDF]

Molecules, 2021
Aqueous solutions of a nonionic surfactant (either Tween20 or BrijL23) and an anionic surfactant (sodium dodecyl sulfate, SDS) are investigated, using small-angle neutron scattering (SANS).
Michael Ludwig, Ramsia Geisler, Sylvain Prévost, Regine von Klitzing   +3 more
doaj   +2 more sources

Assessing the Effect of Anionic Surfactants on the Performance of Enhanced In-sewer Purification with Porous Media

Journal of Water and Environment Technology, 2022
The effect of anionic surfactants on organic matter degradation during enhanced in-sewer purification by porous media was evaluated in this study.
Regina Mardatillah, Tiffany Joan Sotelo, Yuta Shinfuku, Futoshi Kurisu, Hiroyasu Satoh   +4 more
doaj   +1 more source

Influence of anionic surfactant on stability of nanoparticles in aqueous solutions

Chimica Techno Acta, 2023
Dispersion and aggregation of nanoparticles in aqueous solutions are important factors for safe and effective application of nanoparticles, for instance, in the oil industry.
Dmitry O. Zelentsov, Yuliya Yu. Petrova, Alexander V. Korobkin, Anastasia A. Ivanova, Alexey N. Cheremisin, Ivan I. Shanenkov, Alexander Ya. Pak, Yuliya G. Mateyshina   +7 more
doaj   +1 more source

Influence of amphoteric and anionic surfactants on stability, surface tension, and thermal conductivity of Al2O3/water nanofluids

Case Studies in Thermal Engineering, 2021
The influence of surfactants on the dispersion, stability, and thermophysical characteristics of 0.5%-alumina/distilled water nanofluid was investigated.
Seungyeop Baek, Dongwook Shin, Gyuchang Kim, Ajeong Lee, Jungpil Noh, Byeongkeun Choi, Sunchul Huh, Hyomin Jeong, Yonmo Sung   +8 more
doaj   +1 more source

Adsorption of anionic surfactant on sandstone reservoir containing clay minerals and its effect on wettability alteration

Energy Reports, 2022
Previous researches have shown that different anionic surfactants have different adsorption rates on mineral clays. Furthermore, many literatures have presented that anionic surfactants have little effect in changing the wettability of rocks containing ...
Ira Herawati, Pudji Permadi, Achmad Rochliadi, Taufan Marhaendrajana   +3 more
doaj   +1 more source

Surfactants, its applications and effects on environment

Bibechana, 2010
Surfactant is being considered as a very demandable molecule in the field of chemistry. This paper reviews most important factors especially the uses of surfactants and their effects on environment.
SK Shah, A Bhattarai, SK Chatterjee
doaj   +3 more sources

Investigation of the Effect of Anionic and Cationic Surfactants on the Performance of Polyamide Membrane Nanofiltration [PDF]

آب و فاضلاب, 2019
Over the past decades, the sharp increase in population growth and industrialization in developing countries has reduced the quality and quantity of water resources.
Mohammad Sadeghi, Dariush Emadzadeh
doaj   +1 more source

Stimuli-Responsive Biomass Cellulose Particles Being Able to Reversibly Self-Assemble at Fluid Interface

Frontiers in Chemistry, 2020
Stimuli-responsive surface-active microcrystalline cellulose (MCC) particles are obtained by interaction with conventional cationic surfactants such as cetyltrimethylammonium bromide (CTAB) in aqueous media, where MCC are in situ hydrophobized by ...
Yue Zhu, Tingting Chen, Zhenggang Cui, Hong Dai, Li Cai   +4 more
doaj   +1 more source

Manipulation of surface charges of oil droplets and carbonate rocks to improve oil recovery

Scientific Reports, 2021
This work investigates the effect of the surface charges of oil droplets and carbonate rocks in brine and in surfactant solutions on oil production.
Jian Hou, Ming Han, Jinxun Wang
doaj   +1 more source

Nonylphenol Ethoxylate Surfactants Modified by Carboxyl Groups for Foam EOR at High-Salinity Conditions

Energies, 2021
High mineralization of water complicates the use of foam in reservoir conditions. Anionic–nonionic surfactants are one of the best candidates for these conditions since they have both high surface activity and salt tolerance.
Emil R. Saifullin, Shinar Zhanbossynova, Dmitrii A. Zharkov, Roman S. Pavelyev, Chengdong Yuan, Mikhail A. Varfolomeev, Ulukbek Zh. Mirzakimov, Sergey Yu. Ivanov, Sergey A. Sitnov   +8 more
doaj   +1 more source