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Removal of Rhodamine B from water by using CdTeSe quantum dot-cellulose membrane composites†
Canan Baslak,Gulsin Arslan,Mahmut Kus,Yunus Cengeloglu
RSC Advances Pub Date : 02/16/2016 00:00:00 , DOI:10.1039/C5RA23433F
Abstract

Facilitated transport of Rhodamine B through a novel polymer inclusion membrane (PIM) containing CdTeSe Quantum Dots (QDs) as a carrier reagent has been investigated. The prepared PIM was characterized with Fourier transform infrared (FT-IR) spectroscopy, Atomic Force Microscopy (AFM), confocal microscopy, X-ray Photoelectron Spectroscopy (XPS) and fluorescence spectroscopy (PL) techniques and contact angle measurements. The transport was observed by the increased absorbance peak of the stripping phase by UV-visible and fluorescence spectrophotometer. The transport efficiency of Rhodamine B was observed to be 60% after 6 h under optimized conditions. When the feed phase contained 0.005% Rhodamine B at pH 12.19, Rhodamine B was transported through the PIM (prepared with 0.1% CdTeSe QDs) by using 1 M HCl as a stripping phase. The results also showed that the transport efficiency of the PIM was reproducible and it could be beneficial in long-term separation processes.

Graphical abstract: Removal of Rhodamine B from water by using CdTeSe quantum dot-cellulose membrane composites
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