@article{scholars9890,
           title = {Development of surface treated nanosilica for wettability alteration and interfacial tension reduction},
             doi = {10.1080/01932691.2017.1417133},
          number = {10},
            note = {cited By 29},
          volume = {39},
           pages = {1469--1475},
       publisher = {Taylor and Francis Inc.},
         journal = {Journal of Dispersion Science and Technology},
            year = {2018},
            issn = {01932691},
          author = {Ahmed, A. and Mohd Saaid, I. and M Pilus, R. and Abbas Ahmed, A. and Tunio, A. H. and Baig, M. K.},
        abstract = {The present study examines and compares the effect of surface treatments of nano-silica using internal olefins sulphonates (IOS20{\^a}??24 and IOS19{\^a}??23), anionic surfactants. The effect of surface modification on colloidal stability, wettability alteration and oil-water interfacial tension reduction were analyzed. Silica nanoparticles were characterized using Field Emission Scanning Electron Microscope (FESEM) and integrated energy-dispersive X-ray spectroscopy (EDX) before and after surface treatment. Using Turbiscan classic, the optimal nanosilica concentration and inspection of the coated particles dispersion stability with the help of light transmission behavior through the nanofluid was carried out. The stability was found to be enhanced as the mean light transmission declined only after surfactant treatment in both IOS coated nano-silicas but IOS19{\^a}??23 O-342 coated dispersions proved to be more stable among all three. RAME-HART Goniometer was used to perform interfacial tension (IFT) and contact angle measurements. IFT was found to be reduced by 48 after the surfactant treatment in case of IOS19{\^a}??23 O-342 coated nanosilica. Both surface treatments of nanosilica and increasing silica concentration caused significant reduction and altering wettability towards more water wet. The results revealed that IOS coatings improved the efficiency of NPs dispersion in terms of altered wettability and reduced IFT that mimics their potential for EOR applications. {\^A}{\copyright} 2017, {\^A}{\copyright} 2017 Taylor \& Francis.},
        keywords = {Anionic surfactants; Dispersions; Energy dispersive spectroscopy; Enhanced recovery; Light transmission; Nanofluidics; Oil well flooding; Scanning electron microscopy; Silica nanoparticles; Stability; Wetting, Dispersion stability; Energy dispersive X ray spectroscopy; Enhanced oil recovery; Field emission scanning electron microscopes; Nano-silica; Silica concentrations; Transmission behavior; Wettability alteration, Surface treatment},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85039867306&doi=10.1080\%2f01932691.2017.1417133&partnerID=40&md5=aa3a39e46251d2624d994e651881e304}
}