A bismuth tungstate-based nanocomposite was prepared by co-precipitation from solutions of bismuth(III) nitrate pentahydrate and sodium tungstate dihydrate in an equimolar ratio (Bi:W = 1:1), followed by calcination at 450 °C. The sample was characterized by powder X-ray diffraction, IR spectroscopy and low-temperature nitrogen adsorption. According to XRD, the nanocomposite consists of orthorhombic Bi₂WO₆ (russellite) and a cubic fluorite-type δ-Bi₂O₃-based solid solution with a lattice parameter of a ≈ 5.60 Å. Crystallite sizes estimated by the Scherrer equation were ~16–18 and ~22–24 nm, respectively. The IR spectrum shows absorption bands in the 1000–400 cm⁻¹ region assigned to W–O, W–O–W and Bi–O vibrations. The BET specific surface area was 9.42 m²/g, and the total pore volume was 0.0108 cm³/g. The formation of Bi-rich phases is attributed to the hydrolysis of bismuth nitrate in aqueous medium.
| Mualliflar | Haitov , Bozor |
|---|---|
| Jurnal | Techscience.uz - техника фанлари долзарб масалалри |
| Nashriyot | Жиззах политехника институти |
| ISSN | 3030-3702, 3030-3702 |
| Nashr sanasi | 2026-10-12 |
| Jild | 4 |
| Son | 10 |
| Betlar | 72-79 |
| Til | Ingliz |
| Ilmiy soha | Texnika |
| DOI | 10.47390/ts-v4i10y2026n07 |
| Indeksga qo‘shilgan | 2026-10-13 |
DOI: 10.47390/ts-v4i10y2026n07 · Maqolaning asl sahifasi
nanocomposite, bismuth tungstate, Bi₂WO₆, δ-Bi₂O₃, co-precipitation, calcination, X-ray diffraction, IR spectroscopy, BET surface area., nanokompozit, bismut volframat, Bi₂WO₆, δ-Bi₂O₃, birgalikda cho‘ktirish, kalsinatsiya, rentgenofaza tahlili, IQ-spektroskopiya, BET solishtirma sirt.
| APA | Haitov , Bozor (2026). SYNTHESIS AND PHYSICOCHEMICAL CHARACTERIZATION OF A BISMUTH TUNGSTATE-BASED Bi₂WO₆/δ-Bi₂O₃ NANOCOMPOSITE OBTAINED BY CO-PRECIPITATION. Techscience.uz - техника фанлари долзарб масалалри, 4(10), 72-79. https://doi.org/10.47390/ts-v4i10y2026n07 |
|---|---|
| GOST (OAK) | Haitov , Bozor SYNTHESIS AND PHYSICOCHEMICAL CHARACTERIZATION OF A BISMUTH TUNGSTATE-BASED Bi₂WO₆/δ-Bi₂O₃ NANOCOMPOSITE OBTAINED BY CO-PRECIPITATION // Techscience.uz - техника фанлари долзарб масалалри. – 2026. – T. 4, № 10. – P. 72-79. – DOI: 10.47390/ts-v4i10y2026n07. |
| MLA | Haitov , Bozor. “SYNTHESIS AND PHYSICOCHEMICAL CHARACTERIZATION OF A BISMUTH TUNGSTATE-BASED Bi₂WO₆/δ-Bi₂O₃ NANOCOMPOSITE OBTAINED BY CO-PRECIPITATION.” Techscience.uz - техника фанлари долзарб масалалри, 4(10), 72-79, 2026. https://doi.org/10.47390/ts-v4i10y2026n07 |
| Chicago | Haitov , Bozor. “SYNTHESIS AND PHYSICOCHEMICAL CHARACTERIZATION OF A BISMUTH TUNGSTATE-BASED Bi₂WO₆/δ-Bi₂O₃ NANOCOMPOSITE OBTAINED BY CO-PRECIPITATION.” Techscience.uz - техника фанлари долзарб масалалри, 4(10), 72-79 (2026). https://doi.org/10.47390/ts-v4i10y2026n07 |
| Harvard | Haitov , Bozor (2026) ‘SYNTHESIS AND PHYSICOCHEMICAL CHARACTERIZATION OF A BISMUTH TUNGSTATE-BASED Bi₂WO₆/δ-Bi₂O₃ NANOCOMPOSITE OBTAINED BY CO-PRECIPITATION’, Techscience.uz - техника фанлари долзарб масалалри, 4(10), 72-79. https://doi.org/10.47390/ts-v4i10y2026n07 |
| BibTeX | @article{haitovbozor2026,
title = {SYNTHESIS AND PHYSICOCHEMICAL CHARACTERIZATION OF A BISMUTH TUNGSTATE-BASED Bi₂WO₆/δ-Bi₂O₃ NANOCOMPOSITE OBTAINED BY CO-PRECIPITATION},
author = {Haitov , Bozor},
journal = {Techscience.uz - техника фанлари долзарб масалалри},
year = {2026},
volume = {4},
number = {10},
pages = {72-79},
doi = {10.47390/ts-v4i10y2026n07},
url = {https://doi.org/10.47390/ts-v4i10y2026n07}
} |
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