Synthesis of sillenite-type compounds from zeolite precursors: XRPD and SEM/EDS analyses
Апстракт
The paper analyze the possibility of using LTA zeolite as a precursor for obtaining sillenite phase (Bi(12)MO(20), M=Si, Ti, Ge) by hydrothermal synthesis process. The synthesis procedure involves mixing of zeolite (Na-LTA) water solution with native bismuth in autoclave at 170 degrees C for 7 days. As-prepared sample contains sillenite Bi(12)SiO(20) and nepheline (Na(2)AlO(6)) phases. The structures of sillenite and nepheline phases were determined by XRPD methods, and their quantitative amounts were calculated by Rietveld method. These structures were refined with agreement factors: R(p)=7.21, R(wp)=9.25 and R(bragg)=6.14 for a cubic structure sillenite and R(bragg)=18.6 for nepheline phases. The weight fractions were 36.73% for sillenite and 63.72% for nepheline. The shape, morphology and chemical composition of investigated phase are done by means of scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS).
Кључне речи:
sillenite / zeolite precursor / XRPD / SEM / EDSИзвор:
Journal of Optoelectronics and Advanced Materials, 2008, 10, 4, 887-890Напомена:
- 5th International Conference on New Research Trends in Materials Science, Sep, 2007, Sibiu, Romania
Колекције
Институција/група
VinčaTY - JOUR AU - Radosavljević-Mihajlović, Ana S. AU - Vulic, P. AU - Matović, Branko AU - Devečerski, Aleksandar PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6751 AB - The paper analyze the possibility of using LTA zeolite as a precursor for obtaining sillenite phase (Bi(12)MO(20), M=Si, Ti, Ge) by hydrothermal synthesis process. The synthesis procedure involves mixing of zeolite (Na-LTA) water solution with native bismuth in autoclave at 170 degrees C for 7 days. As-prepared sample contains sillenite Bi(12)SiO(20) and nepheline (Na(2)AlO(6)) phases. The structures of sillenite and nepheline phases were determined by XRPD methods, and their quantitative amounts were calculated by Rietveld method. These structures were refined with agreement factors: R(p)=7.21, R(wp)=9.25 and R(bragg)=6.14 for a cubic structure sillenite and R(bragg)=18.6 for nepheline phases. The weight fractions were 36.73% for sillenite and 63.72% for nepheline. The shape, morphology and chemical composition of investigated phase are done by means of scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS). T2 - Journal of Optoelectronics and Advanced Materials T1 - Synthesis of sillenite-type compounds from zeolite precursors: XRPD and SEM/EDS analyses VL - 10 IS - 4 SP - 887 EP - 890 UR - https://hdl.handle.net/21.15107/rcub_vinar_6751 ER -
@article{ author = "Radosavljević-Mihajlović, Ana S. and Vulic, P. and Matović, Branko and Devečerski, Aleksandar", year = "2008", abstract = "The paper analyze the possibility of using LTA zeolite as a precursor for obtaining sillenite phase (Bi(12)MO(20), M=Si, Ti, Ge) by hydrothermal synthesis process. The synthesis procedure involves mixing of zeolite (Na-LTA) water solution with native bismuth in autoclave at 170 degrees C for 7 days. As-prepared sample contains sillenite Bi(12)SiO(20) and nepheline (Na(2)AlO(6)) phases. The structures of sillenite and nepheline phases were determined by XRPD methods, and their quantitative amounts were calculated by Rietveld method. These structures were refined with agreement factors: R(p)=7.21, R(wp)=9.25 and R(bragg)=6.14 for a cubic structure sillenite and R(bragg)=18.6 for nepheline phases. The weight fractions were 36.73% for sillenite and 63.72% for nepheline. The shape, morphology and chemical composition of investigated phase are done by means of scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS).", journal = "Journal of Optoelectronics and Advanced Materials", title = "Synthesis of sillenite-type compounds from zeolite precursors: XRPD and SEM/EDS analyses", volume = "10", number = "4", pages = "887-890", url = "https://hdl.handle.net/21.15107/rcub_vinar_6751" }
Radosavljević-Mihajlović, A. S., Vulic, P., Matović, B.,& Devečerski, A.. (2008). Synthesis of sillenite-type compounds from zeolite precursors: XRPD and SEM/EDS analyses. in Journal of Optoelectronics and Advanced Materials, 10(4), 887-890. https://hdl.handle.net/21.15107/rcub_vinar_6751
Radosavljević-Mihajlović AS, Vulic P, Matović B, Devečerski A. Synthesis of sillenite-type compounds from zeolite precursors: XRPD and SEM/EDS analyses. in Journal of Optoelectronics and Advanced Materials. 2008;10(4):887-890. https://hdl.handle.net/21.15107/rcub_vinar_6751 .
Radosavljević-Mihajlović, Ana S., Vulic, P., Matović, Branko, Devečerski, Aleksandar, "Synthesis of sillenite-type compounds from zeolite precursors: XRPD and SEM/EDS analyses" in Journal of Optoelectronics and Advanced Materials, 10, no. 4 (2008):887-890, https://hdl.handle.net/21.15107/rcub_vinar_6751 .