Stability study of ZnO nanoparticles in aqueous solutions of carboxylate anions
| Parent link: | Journal of Nanoparticle Research: Scientific Journal Vol. 17.— 2015.— [123, 8 p.] |
|---|---|
| Corporate Author: | |
| Other Authors: | , , , , , |
| Summary: | Title screen The paper is devoted to the use of carboxylic acids and salts for the elaboration of stable suspensions of ZnO engineered nanoparticles (40 and 200 nm) in physiological media at pH 6–8. It was shown that the aggregation degree of ZnO-200 particles increases with the growth of carboxylic anion activity, e.g., at pH 7 in the row "Acetate-–Citrate3-–Oxalate2-" the average size of ZnO-200 particles in suspensions amounts to "169–523–770" nm, zeta potential–"35.9–-19.9–+5.42 mV", respectively. The aggregation degree of ZnO-40 particles increases in the row "Citrate3-–Acetate-–Oxalate2-", at pH 7, the average size of ZnO-40 particles in suspension amounts to "50–121–430" nm, zeta potential–"-28.3–-14.5–+2.3" mV, respectively. pH-impact was found to be size-dependent: there was a significantly less effect of pH on adsorption, dispersion, and electrokinetic properties of ZnO-40 particles when compared to ZnO-200 particles. The main reason for the difference between micro- and nanosized particles behavior is a change of the ratio of acidic, basic, and neutral Bronsted centers for particles of nanosized scale. Режим доступа: по договору с организацией-держателем ресурса |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11051-015-2896-6 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656591 |
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| 200 | 1 | |a Stability study of ZnO nanoparticles in aqueous solutions of carboxylate anions |f A. Yu. Godymchuk [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 33 tit.] | ||
| 330 | |a The paper is devoted to the use of carboxylic acids and salts for the elaboration of stable suspensions of ZnO engineered nanoparticles (40 and 200 nm) in physiological media at pH 6–8. It was shown that the aggregation degree of ZnO-200 particles increases with the growth of carboxylic anion activity, e.g., at pH 7 in the row "Acetate-–Citrate3-–Oxalate2-" the average size of ZnO-200 particles in suspensions amounts to "169–523–770" nm, zeta potential–"35.9–-19.9–+5.42 mV", respectively. The aggregation degree of ZnO-40 particles increases in the row "Citrate3-–Acetate-–Oxalate2-", at pH 7, the average size of ZnO-40 particles in suspension amounts to "50–121–430" nm, zeta potential–"-28.3–-14.5–+2.3" mV, respectively. pH-impact was found to be size-dependent: there was a significantly less effect of pH on adsorption, dispersion, and electrokinetic properties of ZnO-40 particles when compared to ZnO-200 particles. The main reason for the difference between micro- and nanosized particles behavior is a change of the ratio of acidic, basic, and neutral Bronsted centers for particles of nanosized scale. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of Nanoparticle Research |o Scientific Journal | ||
| 463 | |t Vol. 17 |v [123, 8 p.] |d 2015 | ||
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| 701 | 1 | |a Godymchuk (Godimchuk) |b A. Yu. |c specialist in the field of nanotechnologies and nanomaterials |c Associate Professor of Tomsk Polytechnic University, candidate of technical science |f 1978- |g Anna Yuryevna |3 (RuTPU)RU\TPU\pers\29602 |9 14137 | |
| 701 | 1 | |a Karepina |b E. E. |g Elizaveta Evgenjevna | |
| 701 | 1 | |a Yunda |b E. N. |c specialist in the field of nanotechnologies and nanomaterials |c Laboratory assistant of Tomsk Polytechnic University |f 1992- |g Elena Nikolaevna |3 (RuTPU)RU\TPU\pers\32482 | |
| 701 | 1 | |a Lyamina |b G. V. |c chemist |c Associate Professor of Tomsk Polytechnic University, Candidate of chemical sciences |f 1974- |g Galina Vladimirovna |3 (RuTPU)RU\TPU\pers\34501 |9 17884 | |
| 701 | 1 | |a Kosova |b N. I. |g Nataljya Ivanovna | |
| 701 | 1 | |a Kuznetsov |b D. V. |g Denis Valerjevich | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |c (2009- ) |9 26305 |
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