Adsorption of C.I. Natural Red 4 onto Spongin Skeleton of Marine Demosponge

Materials

Małgorzata Norman⁴  Przemysᐪw Bartczak⁴  Jakub Zdarta⁴  Włodzimierz Tylus³  Tomasz Szatkowski⁴  Allison L. Stelling²  Hermann Ehrlich¹  Teofil Jesionowski⁴ 

[1] Institute of Experimental Physics, Technische Universität Bergakademie Freiberg, Leipziger 23, Freiberg 09599, Germany; E-Mail:;Department of Mechanical Engineering and Materials Science, Center for Materials Genomics, Duke University, 144 Hudson Hall, Durham, NC 27708, USA; E-Mail:;Institute of Inorganic Technology and Mineral Fertilizers, Technical University of Wroclaw, Smoluchowskiego 25, Wroclaw 50372, Poland; E-Mail:;Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, Poznan 60965, Poland; E-Mails:

关键词: C.I. Natural Red 4;    carmine;    dye adsorption;    kinetic model;    marine sponge;    spongin;    Hippospongia communis;   

DOI  :  10.3390/ma8010096

来源: mdpi

【 摘 要 】

C.I. Natural Red 4 dye, also known as carmine or cochineal, was adsorbed onto the surface of spongin-based fibrous skeleton of Hippospongia communis marine demosponge for the first time. The influence of the initial concentration of dye, the contact time, and the pH of the solution on the adsorption process was investigated. The results presented here confirm the effectiveness of the proposed method for developing a novel dye/biopolymer hybrid material. The kinetics of the adsorption of carmine onto a marine sponge were also determined. The experimental data correspond directly to a pseudo-second-order model for adsorption kinetics (r² = 0.979–0.999). The hybrid product was subjected to various types of analysis (FT-IR, Raman, ¹³C CP/MAS NMR, XPS) to investigate the nature of the interactions between the spongin (adsorbent) and the dye (the adsorbate). The dominant interactions between the dye and spongin were found to be hydrogen bonds and electrostatic effects. Combining the dye with a spongin support resulted with a novel hybrid material that is potentially attractive for bioactive applications and drug delivery systems.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.