Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2017 Aug 7;7:7369. doi: 10.1038/s41598-017-07547-4

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Removal efficiency, adsorption capacity of poly-CD nanofibrous membrane and comparison with activated carbon (AC) and reusability of poly-CD membrane. (A) MB removal efficiency (%) of poly-CD membrane against concentration. The adsorbed amount of MB decreases gradually by the increasing dye concentration (n = 3). (B) Comparative adsorption capacity (q_e (mg/g)) graphs of poly-CD membrane (for pH = 7 and pH = 9 MB solutions) and AC are plotted for four different MB concentrations (*200–800 mg/L). Poly-CD membrane (pH = 7) indicate significantly higher capacity compared to AC. The adsorbed MB amount can be drawn up easily by adjusting the pH = 9 (n = 3). (C) R_L graphs for the adsorption of MB indicating the high tendency between MB and adsorbent, and favorable uptake process. (D) The reusability of poly-CD membrane. The desorption of MB from poly-CD membrane is achieved by washing with methanol solution containing 5% (v/v) HCl. The practical recovery is provided and poly-CD membrane offers almost the same adsorption potential for the second cycle. The inset SEM image of poly-CD membrane after reusability tests (scale bar-10μm) confirms that the fiber morphology of poly-CD membrane is still preserved after the adsorption tests (n = 3).