دورية أكاديمية
Calcite Surfaces Modified with Carboxylic Acids (C 2 to C 18 ): Layer Organization, Wettability, Stability, and Molecular Structural Properties.
| العنوان: | Calcite Surfaces Modified with Carboxylic Acids (C |
|---|---|
| المؤلفون: | Wojas NA; RISE Research Institutes of Sweden, Division of Bioeconomy and Health-Material and Surface Design, Box 5607, SE-114 86 Stockholm, Sweden.; KTH Royal Institute of Technology, Department of Chemistry, Teknikringen 30 SE, 11428 Stockholm, Sweden., Tyrode E; KTH Royal Institute of Technology, Department of Chemistry, Teknikringen 30 SE, 11428 Stockholm, Sweden., Corkery R; KTH Royal Institute of Technology, Department of Chemistry, Teknikringen 30 SE, 11428 Stockholm, Sweden.; Australian National University Department of Applied Mathematics, Research School of Physics and Engineering, Canberra ACT 0200, Australia., Ernstsson M; RISE Research Institutes of Sweden, Division of Bioeconomy and Health-Material and Surface Design, Box 5607, SE-114 86 Stockholm, Sweden., Wallqvist V; RISE Research Institutes of Sweden, Division of Bioeconomy and Health-Material and Surface Design, Box 5607, SE-114 86 Stockholm, Sweden., Järn M; RISE Research Institutes of Sweden, Division of Bioeconomy and Health-Material and Surface Design, Box 5607, SE-114 86 Stockholm, Sweden., Swerin A; Karlstad University Faculty of Health Science and Technology, Department of Engineering and Chemical Sciences: Chemical Engineering, SE-651 88 Karlstad, Sweden., Schoelkopf J; Omya International AG, Baslerstrasse 42, CH-4665 Oftringen, Switzerland., Gane PAC; Aalto University School of Chemical Engineering, Department of Bioproducts and Biosystems, P.O. Box 16300, FI-00076 Aalto, Finland.; University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11200 Belgrade, Serbia., Claesson PM; KTH Royal Institute of Technology, Department of Chemistry, Teknikringen 30 SE, 11428 Stockholm, Sweden. |
| المصدر: | Langmuir : the ACS journal of surfaces and colloids [Langmuir] 2023 Oct 24; Vol. 39 (42), pp. 14840-14852. Date of Electronic Publication: 2023 Oct 12. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 9882736 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5827 (Electronic) Linking ISSN: 07437463 NLM ISO Abbreviation: Langmuir Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Original Publication: Washington, DC : American Chemical Society, c1985- |
| مستخلص: | A fundamental understanding of the interactions between mineral surfaces and amphiphilic surface modification agents is needed for better control over the production and uses of mineral fillers. Here, we controlled the carboxylic acid layer formation conditions on calcite surfaces with high precision via vapor deposition. The properties of the resulting carboxylic acid layers were analyzed using surface-sensitive techniques, such as atomic force microscopy (AFM), contact angle measurements, angle resolved X-ray photoelectron spectroscopy (XPS), and vibrational sum-frequency spectroscopy. A low wettability was achieved with long hydrocarbon chain carboxylic acids such as stearic acid. The stearic acid layer formed by vapor deposition is initially patchy, but with increasing vapor exposure time, the patches grow and condense into a homogeneous layer with a thickness close to that expected for a monolayer as evaluated by AFM and XPS. The build-up process of the layer occurs more rapidly at higher temperatures due to the higher vapor pressure. The stability of the deposited fatty acid layer in the presence of a water droplet increases with the chain length and packing density in the adsorbed layer. Vibrational sum frequency spectroscopy data demonstrate that the stearic acid monolayers on calcite have their alkyl chains in an all-trans conformation and are anisotropically distributed on the plane of the surface, forming epitaxial monolayers. Vibrational spectra also show that the stearic acid molecules interact with the calcite surface through the carboxylic acid headgroup in both its protonated and deprotonated forms. The results presented provide new molecular insights into the properties of adsorbed carboxylic acid layers on calcite. |
| References: | Phys Chem Chem Phys. 2015 Apr 28;17(16):10963-77. (PMID: 25824115) Langmuir. 2021 Dec 7;37(48):14135-14146. (PMID: 34793681) J Phys Chem B. 2006 Feb 9;110(5):2278-92. (PMID: 16471815) Langmuir. 2021 Aug 17;37(32):9826-9837. (PMID: 34355909) Phys Rev Lett. 1987 Oct 5;59(14):1597-1600. (PMID: 10035277) Langmuir. 2010 Jun 1;26(11):8474-82. (PMID: 20334413) Phys Chem Chem Phys. 2019 Jun 7;21(21):11329-11344. (PMID: 31107479) J Colloid Interface Sci. 2010 May 15;345(2):168-73. (PMID: 20202642) J Colloid Interface Sci. 2019 Apr 1;541:42-55. (PMID: 30682592) Phys Chem Chem Phys. 2017 Apr 19;19(16):10343-10349. (PMID: 28379259) Sci Rep. 2017 Aug 8;7(1):7592. (PMID: 28790315) J Am Chem Soc. 2004 Jun 9;126(22):7034-40. (PMID: 15174874) |
| تواريخ الأحداث: | Date Created: 20231012 Latest Revision: 20231028 |
| رمز التحديث: | 20240628 |
| مُعرف محوري في PubMed: | PMC10601537 |
| DOI: | 10.1021/acs.langmuir.3c01252 |
| PMID: | 37824837 |
| قاعدة البيانات: | MEDLINE |
Find this issue from the American Chemical Society | تدمد: | 1520-5827 |
|---|---|
| DOI: | 10.1021/acs.langmuir.3c01252 |