Obtention of selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition on porous substrates
Само за регистроване кориснике
2004
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this work, the possibility of obtaining selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition (PECVD) of hexamethyldisilazane (HMDS) or double layers of HMDS and n-hexane on porous substrates using a capacitive plasma reactor was investigated. The porous substrates used were paper filter, diatomite and polyester textiles. The films were characterized by X-ray photoelectron spectroscopy (XPS), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and contact angle measurements. The membranes obtained were characterized by the Cobb test. Their efficiency to separate hydrocarbon compounds from water was evaluated through filtration experiments and Karl–Fischer titration tests. The reagents used in the filtration experiments were: chloroform, n-hexane, n-heptane, ethyl ether, benzene and diesel. XPS analysis showed that Si, N, C and O were present at the surface of the film. C peak was dominant in the double layer fi...lm spectra. C–Hn, CH2, Si–H, Si–CH3, N–H, Si–CH2–Si, Si–N–Si and Si–C bonds were identified in both types of the films by ATR-FTIR. The relative intensities of the corresponding peaks in the two spectra were different. The XPS and FTIR results indicated that C was most likely present in a CHn form at the surface of double layer film. The average contact angles formed by drops of water on the film surface ranged from 135° to 155°. Water adsorption measured by Cobb test decreased from average values ranging from 300 to 9000 g m−2 (for nonmodified surfaces) to values ranging from 0 to 20 g m−2 (for treated surfaces). The Karl–Fischer titration indicated that between 90 and 1000 ppm (depending on the reagent used) of water remained in the hydrocarbon compound after filtration.
Кључне речи:
PECVD / plasma enhanced chemical vapor deposition / HMDS / hexamethyldisilazane / n-Hexane / Water selective membraneИзвор:
Materials Science and Engineering B, 2004, 112, 2-3, 165-170Издавач:
- Elsevier
Институција/група
IHTMTY - JOUR AU - Banković, Predrag AU - Demarquette, Nicole Raymonde AU - da Silva, Maria Lùcia Pereira PY - 2004 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6845 AB - In this work, the possibility of obtaining selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition (PECVD) of hexamethyldisilazane (HMDS) or double layers of HMDS and n-hexane on porous substrates using a capacitive plasma reactor was investigated. The porous substrates used were paper filter, diatomite and polyester textiles. The films were characterized by X-ray photoelectron spectroscopy (XPS), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and contact angle measurements. The membranes obtained were characterized by the Cobb test. Their efficiency to separate hydrocarbon compounds from water was evaluated through filtration experiments and Karl–Fischer titration tests. The reagents used in the filtration experiments were: chloroform, n-hexane, n-heptane, ethyl ether, benzene and diesel. XPS analysis showed that Si, N, C and O were present at the surface of the film. C peak was dominant in the double layer film spectra. C–Hn, CH2, Si–H, Si–CH3, N–H, Si–CH2–Si, Si–N–Si and Si–C bonds were identified in both types of the films by ATR-FTIR. The relative intensities of the corresponding peaks in the two spectra were different. The XPS and FTIR results indicated that C was most likely present in a CHn form at the surface of double layer film. The average contact angles formed by drops of water on the film surface ranged from 135° to 155°. Water adsorption measured by Cobb test decreased from average values ranging from 300 to 9000 g m−2 (for nonmodified surfaces) to values ranging from 0 to 20 g m−2 (for treated surfaces). The Karl–Fischer titration indicated that between 90 and 1000 ppm (depending on the reagent used) of water remained in the hydrocarbon compound after filtration. PB - Elsevier T2 - Materials Science and Engineering B T1 - Obtention of selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition on porous substrates VL - 112 IS - 2-3 SP - 165 EP - 170 DO - 10.1016/j.mseb.2004.05.026 ER -
@article{ author = "Banković, Predrag and Demarquette, Nicole Raymonde and da Silva, Maria Lùcia Pereira", year = "2004", abstract = "In this work, the possibility of obtaining selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition (PECVD) of hexamethyldisilazane (HMDS) or double layers of HMDS and n-hexane on porous substrates using a capacitive plasma reactor was investigated. The porous substrates used were paper filter, diatomite and polyester textiles. The films were characterized by X-ray photoelectron spectroscopy (XPS), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and contact angle measurements. The membranes obtained were characterized by the Cobb test. Their efficiency to separate hydrocarbon compounds from water was evaluated through filtration experiments and Karl–Fischer titration tests. The reagents used in the filtration experiments were: chloroform, n-hexane, n-heptane, ethyl ether, benzene and diesel. XPS analysis showed that Si, N, C and O were present at the surface of the film. C peak was dominant in the double layer film spectra. C–Hn, CH2, Si–H, Si–CH3, N–H, Si–CH2–Si, Si–N–Si and Si–C bonds were identified in both types of the films by ATR-FTIR. The relative intensities of the corresponding peaks in the two spectra were different. The XPS and FTIR results indicated that C was most likely present in a CHn form at the surface of double layer film. The average contact angles formed by drops of water on the film surface ranged from 135° to 155°. Water adsorption measured by Cobb test decreased from average values ranging from 300 to 9000 g m−2 (for nonmodified surfaces) to values ranging from 0 to 20 g m−2 (for treated surfaces). The Karl–Fischer titration indicated that between 90 and 1000 ppm (depending on the reagent used) of water remained in the hydrocarbon compound after filtration.", publisher = "Elsevier", journal = "Materials Science and Engineering B", title = "Obtention of selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition on porous substrates", volume = "112", number = "2-3", pages = "165-170", doi = "10.1016/j.mseb.2004.05.026" }
Banković, P., Demarquette, N. R.,& da Silva, M. L. P.. (2004). Obtention of selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition on porous substrates. in Materials Science and Engineering B Elsevier., 112(2-3), 165-170. https://doi.org/10.1016/j.mseb.2004.05.026
Banković P, Demarquette NR, da Silva MLP. Obtention of selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition on porous substrates. in Materials Science and Engineering B. 2004;112(2-3):165-170. doi:10.1016/j.mseb.2004.05.026 .
Banković, Predrag, Demarquette, Nicole Raymonde, da Silva, Maria Lùcia Pereira, "Obtention of selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition on porous substrates" in Materials Science and Engineering B, 112, no. 2-3 (2004):165-170, https://doi.org/10.1016/j.mseb.2004.05.026 . .