Behaviors of Crystallization for Osmotic Pressure under Microwave Irradiation

Ryosuke Nakata; Yusuke Asakuma

doi:10.4236/jcpt.2015.51002

Home > Journals > Chemistry & Materials Science > JCPT

JCPT> Vol.5 No.1, January 2015

Share This Article:

Open Access

Behaviors of Crystallization for Osmotic Pressure under Microwave Irradiation

Abstract Full-Text HTML XML

Download as PDF (Size:2810KB) PP. 9-14

DOI: 10.4236/jcpt.2015.51002 4,271 Downloads 4,773 Views

Author(s) Leave a comment

Ryosuke Nakata, Yusuke Asakuma^*

Affiliation(s)

Department of Mechanical and System Engineering, University of Hyogo, Kobe, Japan.

ABSTRACT

We studied chemical garden in order to investigate precipitation behavior for osmotic pressure under microwave irradiation. The salt concentration and microwave irradiation power were varied. Microwave irradiation induced release of osmotic pressure and change of precipitation pattern because polar molecules vibrate and rotate in an electromagnetic field. For example, the width of precipitation increased and the number of rapture of the membrane decreased due to the release of osmotic pressure by the irradiation. Accordingly, microwave irradiation accelerated the diffusion of ionic molecules through the membrane.

KEYWORDS

Microwave, In-Situ Observation, Osmotic Pressure

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Nakata, R. and Asakuma, Y. (2015) Behaviors of Crystallization for Osmotic Pressure under Microwave Irradiation. Journal of Crystallization Process and Technology, 5, 9-14. doi: 10.4236/jcpt.2015.51002.

References

[1]	Cartwright, J.H.E., García-Ruiz, J.M., Novella, M.L. and Otálora, F. (2002) Formation of Chemical Gardens. Journal of Colloid and Interface Science, 256, 351-359. http://dx.doi.org/10.1006/jcis.2002.8620

[2]	Pratama, F.S., Robinson, H.F. and Pagano, J.J. (2011) Spatially Resolved Analysis of Calcium-Silica Tubes in Reverse Chemical Gardens. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 389, 127-133. http://dx.doi.org/10.1016/j.colsurfa.2011.08.041

[3]	Bormashenko, E., Bormashenko, Y., Stanevsky, O. and Pogreb, R. (2006) Evolution of Chemical Gardens in Aqueous Solutions of Polymers. Chemical Physics Letters, 417, 341-344. http://dx.doi.org/10.1016/j.cplett.2005.10.049

[4]	Barge, L.M., Doloboff, I.J., White, L.M., Stucky, G.D., Russell, M.J. and Kanik, I. (2011) Characterization of Iron-Phosphate-Silicate Chemical Garden Structures. Langmuir, 28, 3714-3721. http://dx.doi.org/10.1021/la203727g

[5]	Aaskuma, Y., Murakami, Y. and Konishi, M. (2014) Anti-Solvent Effect of Crystallization by Feeding Ethanol under Microwave Radiation. Crystal Research and Technology, 49, 129-134. http://dx.doi.org/10.1002/crat.201300327

[6]	Asakuma, Y. and Miura, M. (2014) Effect of Microwave Radiation on Diffusion Behavior of Anti-Solvent during Crystallization. Journal of Crystal Growth, 402, 32-36. ttp://dx.doi.org/10.1016/j.jcrysgro.2014.04.031

[7]	Parmar, H., Kanazawa, Y., Asada, M., Asakuma, Y., Phan, C., Pareek, V. and Evans, G. (2014) Influence of Microwave on Water Surface Tension. Langmuir, 30, 9875-9879. http://dx.doi.org/10.1021/la5019218

[8]	Nakai, Y., Tsujita, Y. and Yoshimizu, H. (2002) Control of Gas Permeability for Cellulose Acetate Membrane by Microwave Irradiation. Desalination, 145, 375-377. http://dx.doi.org/10.1016/S0011-9164(02)00439-3

[9]	Nakai, Y., Yoshimizu, H. and Tsujita, Y. (2005) Enhanced Gas Permeability of Cellulose Acetate Membranes under Microwave Irradiation. Journal of Membrane Science, 256, 72-77.