Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation

Scheelite tungstates (MWO4, M = Ca, Sr and Ba) were successfully synthesized by the reactions of M(NO3)2 · 2H 2O and Na2WO4-2H2O in propylene glycol and NaOH using cyclic microwave radiation. The tungstates were detected using SAED. TEM and SEM analyses revealed the presence of dispersed nanosized p...

Full description

Saved in:

Bibliographic Details
Main Authors:	Titipun Thongtem, Anukorn Phuruangrat, Somchai Thongtem
Format:	Journal
Published:	2018
Subjects:	Materials Science
Online Access:	https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=48749084709&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/60507
Tags:	Add Tag No Tags, Be the first to tag this record!
Institution:	Chiang Mai University

id	th-cmuir.6653943832-60507
record_format	dspace
spelling	th-cmuir.6653943832-605072018-09-10T03:44:06Z Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation Titipun Thongtem Anukorn Phuruangrat Somchai Thongtem Materials Science Scheelite tungstates (MWO4, M = Ca, Sr and Ba) were successfully synthesized by the reactions of M(NO3)2 · 2H 2O and Na2WO4-2H2O in propylene glycol and NaOH using cyclic microwave radiation. The tungstates were detected using SAED. TEM and SEM analyses revealed the presence of dispersed nanosized particles for CaWO4, nanosized particles in irregular clusters for SrWO4, and nanosized particles in clusters shaped like dumb-bells for BaWO4. Raman spectra provide evidence of the scheelite structure with six different vibration modes. Arrays of crystallographic planes were detected using HRTEM. PL emission of the products is caused by the 1T2 → 1A1 transition of electrons within [WO4]2- tetrahedrons in the blue spectral region at 407-419 nm. 2018-09-10T03:44:06Z 2018-09-10T03:44:06Z 2008-08-11 Journal 12299162 2-s2.0-48749084709 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=48749084709&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/60507
institution	Chiang Mai University
building	Chiang Mai University Library
country	Thailand
collection	CMU Intellectual Repository
topic	Materials Science
spellingShingle	Materials Science Titipun Thongtem Anukorn Phuruangrat Somchai Thongtem Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation
description	Scheelite tungstates (MWO4, M = Ca, Sr and Ba) were successfully synthesized by the reactions of M(NO3)2 · 2H 2O and Na2WO4-2H2O in propylene glycol and NaOH using cyclic microwave radiation. The tungstates were detected using SAED. TEM and SEM analyses revealed the presence of dispersed nanosized particles for CaWO4, nanosized particles in irregular clusters for SrWO4, and nanosized particles in clusters shaped like dumb-bells for BaWO4. Raman spectra provide evidence of the scheelite structure with six different vibration modes. Arrays of crystallographic planes were detected using HRTEM. PL emission of the products is caused by the 1T2 → 1A1 transition of electrons within [WO4]2- tetrahedrons in the blue spectral region at 407-419 nm.
format	Journal
author	Titipun Thongtem Anukorn Phuruangrat Somchai Thongtem
author_facet	Titipun Thongtem Anukorn Phuruangrat Somchai Thongtem
author_sort	Titipun Thongtem
title	Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation
title_short	Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation
title_full	Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation
title_fullStr	Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation
title_full_unstemmed	Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation
title_sort	synthesis of cawo4, srwo4 and bawo4 with nanosized particles using cyclic microwave radiation
publishDate	2018
url	https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=48749084709&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/60507
_version_	1681425448468217856

Synthesis of CaWO4, SrWO4 and BaWO4 with nanosized particles using cyclic microwave radiation

Similar Items