Next Article in Journal
GC×GC-TOFMS Analysis of Essential Oils Composition from Leaves, Twigs and Seeds of Cinnamomum camphora L. Presl and Their Insecticidal and Repellent Activities
Previous Article in Journal
The Current Case of Quinolones: Synthetic Approaches and Antibacterial Activity
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle
Molecules 2016, 21(4), 405; doi:10.3390/molecules21040405

Insolubilization of Chestnut Shell Pigment for Cu(II) Adsorption from Water

1
Key Laboratory for Forest Resources Conservation and Use in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China
2
Faculty of Science, Southwest Forestry University, Kunming 650224, China
*
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 20 January 2016 / Revised: 4 March 2016 / Accepted: 22 March 2016 / Published: 28 March 2016
(This article belongs to the Section Green Chemistry)
View Full-Text   |   Download PDF [1500 KB, uploaded 28 March 2016]   |  

Abstract

Chestnut shell pigment (CSP) is melanin from an agricultural waste. It has potential as an adsorbent for wastewater treatment but cannot be used in its original state because of its solubility in water. We developed a new method to convert CSP to insolubilized chestnut shell pigment (ICSP) by heating, and the Cu(II) adsorption performance of ICSP was evaluated. The conversion was characterized, and the thermal treatment caused dehydration and loss of carboxyl groups and aliphatic structures in CSP. The kinetic adsorption behavior obeyed the pseudo-second-order rate law, and the equilibrium adsorption data were well described with both the Langmuir and the Freundlich isotherms. ICSP can be used as a renewable, readily-available, easily-producible, environmentally-friendly, inexpensive and effective adsorbent to remove heavy-metal from aquatic environments. View Full-Text
Keywords: Castanea; heating; heavy metal; melanin; removal Castanea; heating; heavy metal; melanin; removal
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Yao, Z.-Y.; Qi, J.-H.; Hu, Y.; Wang, Y. Insolubilization of Chestnut Shell Pigment for Cu(II) Adsorption from Water. Molecules 2016, 21, 405.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top