Compare study CaCO3 crystals on the cellulose substrate by microwave-assisted method and ultrasound agitation method

Abstract

The purposes of this article were to investigate the influences of synthesis strategy on the CaCO(3) crystals on the cellulose substrate. In this study, CaCO(3) crystals were synthesized using cellulose as matrix by the microwave-assisted method and ultrasound agitation method, respectively. The CaCO(3) crystals on the cellulose substrate were characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Experimental results demonstrated that the synthesis strategy had a dramatically influences on the phase, microstructure, morphology, thermal stability, and biological activity of the CaCO(3) crystals. The pure phase of vaterite spheres with the diameter of about 320-600nm were obtained by ultrasound agitation method, meanwhile, the mixed phases of calcite and vaterite with the diameter of about 0.82-1.24μm were observed by microwave-assisted method. In view of experimental results, one can conclude that the ultrasound agitation method do more favors to the synthesis of CaCO(3) crystals with uniform morphology and size, compared with microwave-assisted method. Furthermore, cytotoxicity experiments indicated that the CaCO(3) crystals on the cellulose substrate had good biocompatibility and could be a candidate for the biomedical applications.

CaCO3-decorated cellulose aerogel for removal of Congo Red from aqueous solution

“…High efficiency for CR removal using calcium-rich fly ash (Acemioglu 2004) and Cabentonite (Lian et al 2009) has also been reported previously. CaCO 3 -loaded cellulose composites have been produced using microwave- (Stoica-Guzun et al 2013) and ultrasound-assisted methods (Fu et al 2013), in which the composite samples were characterized in terms of cytotoxicity and mechanical properties, respectively. In this study, we produced CaCO 3 -cellulose aerogel by in situ synthesis of CaCO 3 in as-produced cellulose aerogel.…”

Environmentally friendly ultrosound synthesis and antibacterial activity of cellulose/Ag/AgCl hybrids

“…Cellulose/AgCl hybrids with excellent antimicrobial activity were synthesized using cellulose solution and AgNO 3 in N,N-dimethylacetamide solvent (Li et al, 2012). Cellulose/CaCO 3 hybrids with good biocompatibility were synthesized using cellulose, CaCl 2 , and Na 2 CO 3 in ethylene glycol (Fu, Dong, Ma, Li, & Sun, 2013). Bacterial cellulose/hydroxyapatite hybrids with a 3-dimensional network were fabricated by a biomimetic process (Wan et al, 2006).…”

Effect of ultrasonication on physicochemical properties of apple based nanocellulose-calcium carbonate composites

“…As a result of these processes, which occurred during the nanocellulose preparation, the obtained non-sonicated sample was highly flocculated. The ultrasounds, besides of nanocellulose particles fragmentation favor the CaCO 3 crystals synthesis what could increase homogeneity of nanocellulose/PCC systems in respect to the particles size (Fu et al 2013).…”