Issue 18, 2012
From the journal:

RSC Advances

Nano-micelles based on a rosin derivative as potent sorbents and sinking agents with high absorption capabilities for the removal of metal ions†

Wei-Xin Tan,‡a   Zuan-Tao Lin,‡a   Huai-Tian Bu,b   Yanan Tianc  and  Gang-Biao Jiang*a  

* Corresponding authors

a Department of Pharmaceutical Engineering, South China Agricultural University, Guangzhou, China
E-mail: jgb3h@163.com
Fax: +86 20 85280292
Tel: +86 20 85280293

b SINTEF Materials and Chemistry, PO Box 124 Blindern, N-0314 Oslo, Norway

c Department of Veterinary Physiology and Pharmacology, Mail Stop 4466, Texas A&M University, College Station, TX 77843, USA

Abstract

In this paper, a novel stable nano-micelle based on a rosin derivative was prepared via the conjugation of tetraethylenepentamine (TEPA) with maleopimaric acid anhydride (MPA). The TEPA-MPA micelle depicts potent absorption and sinking abilities for metal ions. Its structure was characterized by FT-IR. The size of micelle measured by dynamic lighter scattering (DLS) was 96.5 nm, and its morphology observed by transmission electron microscopy (TEM) is approximately regular spherical. Besides, the low critical micelle concentration (CMC) value of micelles (6.575 × 10−4 mg mL−1) determined by fluorometric measurement indicates that the micelle has great self-assembly capability and excellent stability in aqueous solution. The adsorption mechanisms of Cu(II), Ni(II), Cd(II) and Cr(III) by TEPA-MPA were investigated by FT-IR and XPS, which suggests that both the carboxyl and amino groups are involved in metal adsorption, and that Cr(III) is the most firmly chelated ion by TEPA-MPA. Moreover, the effects of initial concentration and pH value of metal ions solution on adsorption were investigated to ascertain the adsorbing capacity. The results indicate that the adsorption of metal ions by TEPA-MPA is not pH dependent, and TEPA-MPA has a higher affinity for Ni(II) than that for Cu(II) and Cd(II). The absorption experiment data reveal that TEPA-MPA has outstanding metal absorption capacities (293.74–1655.08 mg g−1, metal ions/TEPA-MPA).

Graphical abstract: Nano-micelles based on a rosin derivative as potent sorbents and sinking agents with high absorption capabilities for the removal of metal ions

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C2RA20767B
Article type
Paper
Submitted
25 Apr 2012
Accepted
02 Jun 2012
First published
12 Jul 2012

RSC Adv., 2012,2, 7279-7289

Permissions

Request permissions

Nano-micelles based on a rosin derivative as potent sorbents and sinking agents with high absorption capabilities for the removal of metal ions

W. Tan, Z. Lin, H. Bu, Y. Tian and G. Jiang, RSC Adv., 2012, 2, 7279 DOI: 10.1039/C2RA20767B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements