Adsorption of Metal Ions and Organic Ions onto Human Scalp Hair

Abstract:

Cystine, frequently positive charged, formulated as a kind of hydrolysate surrounds the surface of hair. It baffles the particles with the same charge from being adsorbed by hair. On the contrary, it boosts those with the different charge. As a result, negatively charged ion, in the same condition, can be adsorbed more than those positively charged and much quicker to achieve the adsorption equilibrium. In the single solution, adsorption capacity is also relevant to the size of the particles. Namely, for metal ions, the larger the particles, the less they can be adsorbed. This is caused by the steric effect. While for organic anions, the larger the matter, the larger they can be adsorbed, which may be caused by van der Waals force.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 613-616
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.613
• Online since: February 2013
• Authors: Xiu Xiu Ruan, Song Huang, Yu Xia Ji, Hua Chen
• Keywords: Cystine, Hair, Metal Ions, Organic Ions

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