+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Selected-control hydrothermal synthesis and formation mechanism of monazite- and zircon-type LaVO(4) nanocrystals



Selected-control hydrothermal synthesis and formation mechanism of monazite- and zircon-type LaVO(4) nanocrystals



Journal of Physical Chemistry. B 110(46): 23247-23254



Selective-controlled structure and shape of LaVO(4) nanocrystals were successfully synthesized by a simple hydrothermal method without the presence of catalysts or templates. It was found that tuning the pH of the growth solution was a crucial step for the control of the structure transformation, that is, from monoclinic (m-) to tetragonal (t-) phase, and morphology evolution of LaVO(4) nanocrystals. Further studies demonstrated that the morphology of the product had a strong dependence on the initial lanthanum sources. In the La(NO(3))(3) or LaCl(3) reaction system, pure t-LaVO(4) nanorods with uniform diameters about 10 nm could be obtained. But when using La(2)(SO(4))(3) as the lanthanum source, we can get t-LaVO(4) nanowiskers with broomlike morphology. The detailed systematic study had shown that a special dissolution-recrystallization transformation mechanism as well as an Ostwald ripening process was responsible for the phase control and anisotropic morphology evolution of the LaVO(4) nanocrystals. As a result, the controlled synthesis of m- and t-LaVO(4) not only has great theoretical significance in studying the polymorph control and selective synthesis of inorganic materials but also benefits the potential applications based on LaVO(4) nanocrystals owing to the unusual luminescent properties induced by structural transformation.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 050270935

Download citation: RISBibTeXText

PMID: 17107173

DOI: 10.1021/jp0646832


Related references

Selective synthesis of monazite- and zircon-type LaVO(4) nanocrystals. Journal of Physical Chemistry. B 109(8): 3284-3290, 2005

Uranium-lead radioactive ages of monazite and zircon from the Vire-Carolles granite (Normandy); a case of zircon-monazite discrepancy. Eclogae Geologicae Helvetiae 63(1): 231-237, 1970

Colloidal nanocrystals of wurtzite-type Cu2ZnSnS4: facile noninjection synthesis and formation mechanism. Chemistry 18(11): 3127-3131, 2012

How do monazite and zircon grow, and what do monazite and zircon U-Pb age dates mean? Insights obtained from experiments. Abstracts with Programs - Geological Society of America 30(7): 214, 1998

Mechanism of Hydrothermal Synthesis of Zircon in a Fluoride Medium. Journal of Sol-Gel Science and Technology 13(1-3): 119-124, 1998

New SHRIMP U-Pb zircon ages and CHIME monazite ages from South Harris granulites, Lewisian Complex, NW Scotland implications for two stages of zircon formation during Palaeoproterozoic UHT metamorphism. Precambrian Research 200-203(none): 0-128, 2012

Hierarchical structured tungsten oxide nanocrystals via hydrothermal route: microstructure, formation mechanism and humidity sensing. Applied Physics A: Materials Science and Processing 112(4): 1033-1042, 2013

Prolonged magmatic to hydrothermal growth of zircon, xenotime and monazite in a Sn-W mineralized granite; chemical and isotopic composition of accessories. Abstracts of the, 2002

U-Pb-Th geochronology of monazite and zircon in albitite metasomatites of the Roava-Nadabula ore field (Western Carpathians, Slovakia): implications for the origin of hydrothermal polymetallic siderite veins. Mineralogy and Petrology 109(5): 519-530, 2015

Monazite- and zircon-type structures of seven mixed (Ln/Ln) PO4 compounds. Inorganica Chimica Acta 244(2): 247-252, 1996

Zircon and monazite alteration in the the Murun Granite (Muruntau, Uzbekistan); a natural analogue for hydrothermal alteration of nuclear waste forms. International Geological Congress, Abstracts = Congres Geologique International, Resumes 32, Part 2: 996, 2004

Hydrothermal synthesis of monazite. American Mineralogist 42(11-12): 904, 1957

Zircon and monazite U-Pb systems and the histories of I-type magmas, Berridale Batholith, Australia. Journal of Petrology 24(1): 76-97, 1983

Age of crustal melting and leucogranite formation from U-Pb zircon and monazite dating in the western Himalaya, Zanskar, India. Geology 23(12): 1135-1138, 1995

Hydrothermal synthesis of kaolinite and its formation mechanism. Clays and Clay Minerals 58.1, 2010