Skip to main content

Nanocalcite as a Nanoparticle/Nanopowder of CaCO3

 
Nanocalcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). Nanocalcite crystals are trigonal-rhombohedral. Nanocalcite is transparent to opaque and may occasionally show phosphorescence or fluorescence. The nature, shape and dispersion characteristics of the nanocalcite particles effect the mechanical and other properties of the polymers.
The calcium, carbon and oxygen atoms can arrange themselves in three different ways, to form three different calcium carbonate minerals. The most common arrangement is the hexagonal form known as calcite. A number of different nanocalcite crystal forms are possible: scalenohedral, rhombohedral and prismatic.
The advantages of using nanocalcite are that, they can improve the air-tightness, opacity, resistivity and stiffness, and provide good stability, and good electricity insulation. Therefore, use of nanocalcite is important in composite materials. Nanocalcite has been used extensively as filling material in various industries in order to improve some mechanical properties of the composite materials and to reduce the product costs.
The carbonization method is the most appropriate method for nanocalcite production and it is widely used commercially. Because of the availability of raw materials and their low costs, carbonation method for producing nanocalcite has advantages for large scale. The main chemicals used in nanocalcite production in large scale studies were Ca(OH)2 powders and CO2 gas.
Advanced applications of nanocaltite essentially involve the synthesis of stable, homogeneous, and nano sized particles to be used as filler material in polyester films for magnetic types’ productions, builder for detergent productions, coating pigment in the production of paper and cosmetic industries.
Microbiologically precipitated calcite has a wide range of applications, such as soil remediation, soil stabilization and concrete repair.
  • ­Nanocalcite is used in magnetic types’ production.
  • ­Nanocalcite is used in detergent production.
  • ­Nanocalcite is used in cosmetics industry.
  • ­Nanocalcite is used in paper production.
  • ­Nanocalcite is used for soil remediation and stabilization.
  • ­Nanocalcite is used for concrete repair.
Labels:

Comments

Post a Comment

Popular posts from this blog

Molybdenum Trioxide Nanoparticles/Nanopowder and Applications

General Information about Molybdenum Trioxide                                                     Molybdenum trioxide is chemical compound with the formula MoO3. Its chief application is as an oxidation catalyst and as a raw material for the production of molybdenum metal.  Molybdenum Trioxide  is a very light blue powder. Molybdenum Trioxide Nanoparticles/Nanopowder and Their Applications                                                    Like many  nanoparticles/nanopowder , Molybdenum Trioxide nanoparticles/nanopowder are used as catalysts. These catalysis reactions include hydrogenation catalysis and cracking catalysis. Molybdenum Trioxide nanoparticles/  nanopowder are useful for...
Post a Comment
Read more

Boron Carbide Nanoparticles and Their Applications

Boron carbide  which has the chemical formula of B 4 C is one of the hardest materials among the ceramics materials after diamond and boron nitride. In addition to its hardness, it has high thermal stability, low density, chemical inertness and neutron capture property. At temperature above 1200  o C, its hardness exceeds that of the diamond. Thus, it is a crucial material for high technology applications such as abrasive for polishing and grinding media, ceramic amour applications for personal purpose and equipment, blasting nozzles, ceramic bearings, semiconductor applications for dielectric barriers, medical and nuclear applications. B4C (Boron Carbide) Nanoparticles (99.5+%, 40-60nm, Hexagonal)  show an outstanding hardness among the ceramic materials. Therefore, boron carbide nanoparticles are a suitable material for many high performance applications. Boron carbide nanoparticles can be used as polishing, lapping and grinding material for hard mater...
Post a Comment
Read more

Cadmium Sulfide Nanopowder and Its Applications

Cadmium sulfide is the inorganic compound with the formula CdS. Cadmium sulfide is a yellow solid. It occurs in nature with two different crystal structures as the rare minerals greenockite and hawleyite. As a compound that is easy to isolate and purify, cadmium sulfide the principal source of cadmium for all commercial applications. Its vivid yellow color led to its adoption as a pigment for the yellow paint "cadmium yellow" in the 18th century. Cadmium Sulfide Nano Powder, CdS (99.9+%, 20 nm)  shows unique physical, chemical and structural properties from the bulk. The melting point, electronic absorption spectra, band gap energy crystal structure, and other properties of cadmium sulfide nanoparticles are affected by size. Thus, cadmium sulfide on the whole is an attractive system for practicing synthetic chemistry for nanocrystals and for understanding the chemistry, growth history of nanomaterials and also for various technical applications. Colloidal dispersions of ...
Post a Comment
Read more