000 02701naa a2200313 c 4500
001 koha000890371
005 20221027132329.0
007 cr |
008 220314s2021 ru fs 100 0 eng d
035 _akoha000890371
040 _aRU-ToGU
_brus
_cRU-ToGU
100 1 _aGolubovskaya, Aleksandra G.
_9816663
245 1 0 _aFeatures of bismuth and silicon oxides synthesis by pulsed laser ablation in water
_cA. G. Golubovskaya, E. D. Fakhrutdinova, V. A. Svetlichnyi
336 _aТекст
337 _aэлектронный
504 _aБиблиогр.: 1 назв.
520 3 _aSemiconductor nanomaterials are widely used in photocatalysis due to a number of advantages such as efficient electron separation and flexible choice of semiconductor with desired band gap for efficient light absorption. Bismuth silicates (BSO) are promising new photocatalytic materials for organic decomposition and hydrogen production [1]. Currently mainly chemical methods of synthesis are used to obtain BSO materials. In this work for the first time complex oxides BSO were prepared via pulsed laser ablation (PLA) in a liquid. PLA was performed by exposing Si and Bi targets to Nd:YAG laser radiation (1064 nm, 7 ns). Separately synthesized nanocolloids were mixed and subjected to additional laser irradiation and then dried. Using different Si/Bi ratios, as well as temperature treatment of the resulting powders, BSO of various compositions were synthesized, including monophases of the compounds Bi2SiO5, Bi4Si3O12 and Bi12SiO20. The photocatalytic activity of the samples was estimated by the decomposition of Rhodamine B under LED source irradiation with rad = 375 nm. The effect extra irradiation of colloids mixture on the formation of the structure of complex oxides BSO at different Si/Bi ratios has been studied. The correlations between the optical properties, composition and structure of catalysts and their photocatalytic properties has been established. It was shown that the best photocatalytic activity exhibits Bi12SiO20 powders.
653 _aимпульсная лазерная абляция
653 _aоксид висмута
653 _aоксид кремния
655 4 _aстатьи в сборниках
_9798729
700 1 _aFakhrutdinova, Elena D.
_9567766
700 1 _aSvetlichnyi, Valerii A.
_9562988
773 0 _tPulsed lasers and laser applications AMPL-2021 : the 15th International conference, September 12-17, 2021, Tomsk, Russia : abstracts
_dTomsk, 2021
_gP. 21
_z9785936296703
852 4 _aRU-ToGU
856 4 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000890371
908 _aстатья
999 _c890371