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Environmentally Friendly Inorganic Magnetic Sulfide Nanoparticles for Efficient Adsorption‐Based Mercury Remediation from Aqueous Solution
Author(s) -
Patel Khushbu,
Singh Nimisha,
Nayak Jyotsna M.,
Jha Babli,
Sahoo Suban K.,
Kumar Rajender
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201702851
Subject(s) - mercury (programming language) , adsorption , aqueous solution , environmental remediation , tap water , nanoparticle , chemistry , langmuir adsorption model , sulfide , zinc , inorganic chemistry , magnetic nanoparticles , selectivity , zinc sulfide , langmuir , environmentally friendly , chemical engineering , materials science , contamination , nanotechnology , environmental engineering , environmental science , organic chemistry , catalysis , ecology , computer science , engineering , biology , programming language
Inorganic sulphidenanoparticles (NPs) were prepared by wrapping the magnetic iron oxide NPs with thin shell (5 nm) of zinc sulphide. The as prepared NPs show maximum mercury removal capacity of 98–99% under ambient conditions from tap, ground and polluted river water without any pre‐treatment. The magnetic nanoparticlesinteract with toxic mercuric ions predominately by adsorption phenomenon and shows excellent thermodynamic parameters fitted with Langmuir and van'thoff isotherms. The as prepared magnetic NPshave high selectivity for mercury, practical utility and can be scaled up at pilot scale.