Multifunctional Fe3O4@SiO2nanoparticles for selective detection and removal of Hg2+ion in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (15) ◽  
pp. 11000-11008 ◽  
Author(s):  
Zebin Sun ◽  
Dan Guo ◽  
Haizhen Li ◽  
Li Zhang ◽  
Bo Yang ◽  
...  

A multifunctional magnetic core–shell Fe3O4@SiO2nanoparticle decorated with rhodamine-based receptor has been successfully synthesized, aiming to detect and remove Hg2+from aqueous media.

2019 ◽  
Vol 40 (9) ◽  
pp. 1368-1377
Author(s):  
Kothalam Radhakrishnan ◽  
Perumal Panneerselvam ◽  
Ayyanu Ravikumar ◽  
Norhashimah Morad

2015 ◽  
Vol 3 (18) ◽  
pp. 4713-4722 ◽  
Author(s):  
Zebin Sun ◽  
Haizhen Li ◽  
Dan Guo ◽  
Jian Sun ◽  
Guijia Cui ◽  
...  

A multifunctional core-shell magnetic fibrous silica sensing probe AQ-Fe3O4@SiO2@KCC-1 was prepared for the detection, adsorption and removal of Zn2+ in aqueous solution.


2016 ◽  
Vol 40 (3) ◽  
pp. 2521-2529 ◽  
Author(s):  
Ehsan Nazarzadeh Zare ◽  
Moslem Mansour Lakouraj ◽  
Atefeh Ramezani

We propose that the PA3ABA@Fe3O4 core–shell magnetic nanocomposite is an appropriate candidate for water treatment processes.


2016 ◽  
Vol 230 ◽  
pp. 149-156 ◽  
Author(s):  
Dilip Saikia ◽  
Priyanka Dutta ◽  
Neelotpal Sen Sarma ◽  
Nirab C. Adhikary

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Ming La ◽  
Yuanqiang Hao ◽  
Zhaoyang Wang ◽  
Guo-Cheng Han ◽  
Lingbo Qu

A water-soluble fluorescent probe (C-GGH) was used for the highly sensitive and selective detection of cyanide (CN−) in aqueous media based on the displacement strategy. Due to the presence of the recognition unit GGH (Gly-Gly-His), the probeC-GGH can coordinate with Cu2+and consequently display ON-OFF type fluorescence response. Furthermore, thein situformed nonfluorescentC-GGH-Cu2+complex can act as an effective OFF-ON type fluorescent probe for sensing CN−anion. Due to the strong binding affinity of CN−to Cu2+, CN−can extract Cu2+fromC-GGH-Cu2+complex, leading to the release ofC-GGH and the recovery of fluorescent emission of the system. The probeC-GGH-Cu2+allowed detection of CN−in aqueous solution with a LOD (limit of detection) of 0.017 μmol/L which is much lower than the maximum contaminant level (1.9 μmol/L) for CN−in drinking water set by the WHO (World Health Organization). The probe also displayed excellent specificity for CN−towards other anions, including F−, Cl−, Br−, I−, SCN−,PO43-,N3-,NO3-, AcO−,SO42-, andCO32-.


2016 ◽  
Vol 45 (2) ◽  
pp. 811-819 ◽  
Author(s):  
Siddhartha Sankar Boxi ◽  
Santanu Paria

In this study, a fluorometric method based on Ag–CdS/Ag–ZnS core/shell nanoparticles is developed for fluoride ion detection.


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