000			03613nlm1a2200421 4500
001			668011
005			20231030042134.0
035			_a(RuTPU)RU\TPU\network\39222
035			_aRU\TPU\network\37368
090			_a668011
100			_a20220527a2022 k y0engy50 ba
101	0		_aeng
102			_aUS
135			_adrcn ---uucaa
181		0	_ai
182		0	_ab
200	1		_aPolymorphism and Visible-Light-Driven Photocatalysis of Doped Bi2O3:M (M = S, Se, and Re) _fM. Weber, R. D. Rodriguez (Rodriges) Contreras, D. R. T. Zahn [et al.]
203			_aText _celectronic
300			_aTitle screen
320			_a[References: 23 tit.]
330			_ad-Bi2O3:M (M = S, Se, and Re) with an oxygen-defective fluorite-type structure is obtained by a coprecipitation method starting from the bismuth oxido cluster [Bi38O45(OMc)24(dmso)9]·2dmso·7H2O (A) in the presence of additives such as Na2SO4, Na2SeO4, NH4ReO4, Na2SeO3·5H2O, and Na2SO3. The coprecipitation of the starting materials with aqueous NaOH results in the formation of alkaline reaction mixtures, and the cubic bismuth(III)-based oxides Bi14O20(SO4) (1c), Bi14O20(SeO4) (2c), Bi14O20(ReO4.5) (3c), Bi12.25O16.625(SeO3)1.75 (4c), and Bi10.51O14.765(SO3)0.49(SO4)0.51 (5c) are obtained after microwave-assisted heating; formation of compound 5c is the result of partial oxidation of sulfur. The compounds 1c, 2c, 4c, and 5c absorb UV light only, whereas compound 3c absorbs in the visible-light region of the solar spectrum. Thermal treatment of the as-prepared metastable bismuth(III) oxide chalcogenates 1c and 2c at T = 600 °C provides a monotropic phase transition into their tetragonal polymorphs Bi14O20(SO4) (1t) and Bi14O20(SeO4) (2t), while compound 3c is transformed into the tetragonal modification of Bi14O20(ReO4.5) (3t) after calcination at T = 700 °C. Compounds of the systems Bi2O3–SOx (x = 2 and 3) and Bi2O3–Re2O7 are thermally stable up to T = 800 °C, whereas compounds of the system Bi2O3–SeO3 completely lose SeO3. Thermal treatment of 4c and 5c in air results in the oxidation of the tetravalent to hexavalent sulfur and selenium, respectively, upon heating to T = 400–500 °C. The as-prepared cubic bismuth(III)-based oxides 1c–5c were studied with regard to the photocatalytic decomposition of rhodamine B under visible-light irradiation with compound 3c showing the highest turnover and efficiency.
333			_aРежим доступа: по договору с организацией-держателем ресурса
461			_tInorganic Chemistry
463			_tVol. 61, iss. 3 _v[P. 1571–1589] _d2022
610	1		_aэлектронный ресурс
610	1		_aтруды учёных ТПУ
610	1		_aсоосаждение
610	1		_aсоединения
610	1		_aтермическая обработка
701		0	_aWeber _bM. _gMarcus
701		1	_aRodriguez (Rodriges) Contreras _bR. D. _cVenezuelan physicist, doctor of science _cProfessor of Tomsk Polytechnic University _f1982- _gRaul David _2stltpush _3(RuTPU)RU\TPU\pers\39942
701		0	_aZahn _bD. R. T. _gDietrich
701		0	_aStowe _bK. _gKlaus
701		0	_aMehring _bM. _gMichael
712	0	2	_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа химических и биомедицинских технологий _c(2017- ) _h8120 _2stltpush _3(RuTPU)RU\TPU\col\23537
801		2	_aRU _b63413507 _c20220527 _gRCR
856	4		_uhttps://doi.org/10.1021/acs.inorgchem.1c03330
942			_cCF