Synthesis of hierarchical calcium carbonate particles

Date

2018-11-01

Author

Oral, Cağatay Mert
Kapusuz, Derya
Ercan, Batur

Metadata

Show full item record

Item Usage Stats

208
views

0
downloads

Recently, synthesis of hierarchically structured porous materials gained particular interest for various industrial applications. As a biocompatible and chemically stable material, hierarchical CaCO3 structures formed by ordered aggregation and growth of nanocrystals offer significant advantages for structural and biomedical use compared to their currently-used alternatives. During solution processing, incorporating doping agents to calcium positions or altering CaCO3 supersaturation, new crystals can heterogeneously nucleate on previously formed nuclei, leading to particle growth in a hierarchical manner. In this study, hierarchical CaCO3 microparticles were synthesized at temperatures below 100 °C by an additive-modified precipitation approach. The morphology and crystal structure of the CaCO3 particles were determined by electron microscopy (SEM and TEM) and X-ray diffraction (XRD). By varying additive content and temperature, morphologies including hollow microspheres, crab-like and flower-like particles were successfully obtained.

URI

https://hdl.handle.net/11511/78850
http://www1.metalurji.org.tr/immc2018/03_NMS/118.pdf

Conference Name

19. Uluslararası Metalurji ve Malzeme Kongresi, 2018

Collections

Department of Metallurgical and Materials Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Synthesis of silver nanowires through polyol process Coşkun, Şahin; Ünalan, Hüsnü Emrah; Department of Metallurgical and Materials Engineering (2012) Nanotechnology enabled synthesis of various shapes and morphologies of conventional materials. Nanotubes, nanoparticles, quantum dots and nanowires are the new form of materials. Especially nanowires have gotten great attention due to their unique physical, chemical and optical properties. Superior properties of nanowires are based on their high surface area and two quantum confinement directions. Silver is one of the most conductive metals and it has the highest thermal conductivity. Due to excellent prope...
INVESTIGATION OF DONOR, ACCEPTOR AND SUBSTITUENT EFFECT ON PHTHALIMIDE AND THIENO[3,4-c]PYRROLE-4,6-DIONE BASED DONOR-ACCEPTOR-DONOR TYPE MONOMERS AND POLYMERS Çakal, Deniz; Önal, Ahmet Muhtar; Cihaner, Atilla; Department of Chemistry (2021-11-26) Conjugated organic materials comprise a major field of material chemistry focused on the improvement of new building blocks for the synthesis of novel semiconducting materials with advanced functional properties. Such semiconducting systems have the advantage of low cost, solution processability and flexibility and find many applications in the field of plastic photovoltaics, electrochromics and display technologies. The electronic and optical features of these semiconducting organic materials can be tailor...
Synthesis of acrylic based high internal phase emulsion polymers and their application in chromatography Tunç, Yeliz; Hasırcı, Nesrin; Department of Polymer Science and Technology (2009) High internal phase emulsion polymers (PolyHIPEs) are new generation materials with their high porosity and interconnected open-cell structures and finds applications in areas such as supports for catalytic systems, separation media and tissue engineering scaffolds. Styrene based PolyHIPEs are currently the most popular choice, but solvent compatibility and poor mechanical properties of these materials prevent their applications. Therefore development of new polyHIPEs with desired mechanical and cellular pr...
Synthesis of Emulsion-Templated Acrylic-Based Porous Polymers: From Brittle to Elastomeric Tunc, Yeliz; Hasırcı, Nesrin; ULUBAYRAM, KEZBAN (2012-01-01) High internal phase emulsion polymers (PolyHIPEs) are novel materials that have high porosity and interconnected open-cell structure and are used in various applications such as supports for catalytic systems, media for separation of similar molecules, and scaffolds for tissue engineering. In this study, 90% porous acrylic based polyHIPE structures with various cellular structure and mechanical characteristics were developed by using stearyl acrylate (SA), isodecyl acrylate (IDA), isobornyl methacrylate (IB...
Synthesis of tin oxide-coated gold nanostars and evaluation of their surface-enhanced Raman scattering activities Elcı, Aylin; Demırtas, Ozge; Öztürk, İbrahim Murat; Bek, Alpan; Nalbant Esentürk, Emren (2018-12-01) Tin oxide-coated gold nanostar hybrid nanostructures are prepared by first synthesizing gold nanostars (ca. 400nm), then introducing Na2SnO3 precursor followed by its hydrolysis and formation of a tin oxide layer on nanoparticle surface. The synthesized hybrid structures have been characterized by combination of UV-Vis spectroscopy, transmission electron microscope (TEM), energy-dispersive X-ray studies, scanning electron microscope (SEM), X-Ray diffraction (XRD) and Fourier transform infrared (FTIR) spectr...

Citation Formats

C. M. Oral, D. Kapusuz, and B. Ercan, “Synthesis of hierarchical calcium carbonate particles,” presented at the 19. Uluslararası Metalurji ve Malzeme Kongresi, 2018, Istanbul, Turkey, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/78850.