Journal ArticleDOI
Comparative study between CeO2/Zno and CeO2/SiO2 nanocomposites for (Cr6+) heavy metal removal
Rania Ramadan,Mai M. El-Masry +1 more
TLDR
In this paper, nanocomposites of CeO2/ZnO and CeO 2/SiO2 were used as adsorbing materials for the Cr (VI) heavy metal from water.Abstract:
In the present work, nanocomposites of CeO2/ZnO and CeO2/SiO2 were prepared to be used as adsorbing materials for the Cr (VI) heavy metal from water. According to the non-toxic and low-cost properties of zinc oxide and silica, they have been prepared as a nanocomposite with anti-oxidant cerium oxide. The prepared CeO2/SiO2 nanocomposite showed larger removal efficiency for Cr (VI) from aqueous solution of (55%) at optimum conditions of pH = 7 after 100 min. The adsorption kinetics for Cr (VI) on surface of CeO2/Zno and CeO2/SiO2 were well fitted with pseudo-second-order kinetic model. The adsorption mechanism follows monolayer Langmuir isotherm model. The prepared samples were investigated and characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), UV-spectroscopy, field emission scanning electron microscopy (FESEM) and N2 adsorption–desorption isotherm (BET) isotherm. The efficiency of the prepared samples for removing of Cr (VI) from aqueous solution was investigated in different experimental conditions (different PH and contact time).read more
Citations
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Recent Advances in Adsorptive Nanocomposite Membranes for Heavy Metals Ion Removal from Contaminated Water: A Comprehensive Review
Fouad Damiri,Swetha Andra,Nagavendra Kommineni,Satheeshkumar Balu,Raviteja Bulusu,Amira A. Boseila,Damilola O. Akamo,Zubair Ahmad,Farhat Khan,Md. Habibur Rahman,Mohammed Berrada,Simona Cavalu +11 more
TL;DR: In this article , a review of the use of nanomaterials in nanoadsorptive membrane systems for wastewater treatment and heavy metal removal is extensively discussed, and the relevant properties of the nanostructures and their implications on their performance for water treatment and contamination removal are highlighted.
Journal ArticleDOI
Cu2+- and Zn2+-doped cobalt spinel ferrite: insights on structural, thermal conduction, electric, magnetic and elastic properties
TL;DR: In this article , a complete study of the structural, morphological, thermal, magnetic, and electrical properties of nanoferrites was carried out using the citrate auto-combustion technique, and all the investigated samples were found to belong to space group (Fd-3m) and space group number (227).
Journal ArticleDOI
Study the multiferroic properties of BiFeO3/Ni0.1Fe2.9O4 for heavy metal removal
TL;DR: In this article , the structural, morphological and dielectric properties of multiferroic nanocomposite material (BiFeO 3 /Ni 0.1 Fe 2.9 O 4 ) were investigated as a function of temperature as well as frequency.
Journal ArticleDOI
Triphasic CoFe2O4/ ZnFe2O4 / CuFe2O4 Nanocomposite for Water Treatment Applications
TL;DR: In this paper , a triphasic spinel spinel ferrite nanocomposite was used as an adsorbent material for heavy metal removal in the presence of citrate auto-combustion.
Journal ArticleDOI
Efficient lead removal from aquatic solution by (Co0.7Zn0.3)0.9Ni0.1Fe2O4 ferrite with tunable optical and magnetic properties.
Rania Ramadan,Amira S. Shafaay +1 more
TL;DR: A new material based on (Co0.7Zn0.3)0.9Ni0.1Fe2O4 nanoferrite was prepared by using a flash auto-combustion method as discussed by the authors .
References
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Journal ArticleDOI
Heavy metal removal from water/wastewater by nanosized metal oxides: a review.
TL;DR: The present review mainly focuses on NMOs' preparation, their physicochemical properties, adsorption characteristics and mechanism, as well as their application in heavy metal removal.
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Fabrication and Gas-Sensing Properties of Porous ZnO Nanoplates
Zhihong Jing,Jinhua Zhan +1 more
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A review on heavy metal ions adsorption from water by graphene oxide and its composites
TL;DR: Graphene oxide and its composites have attracted widespread attentions as novel adsorbents for the adsorption of various heavy metal contaminants as mentioned in this paper, because of the unique physicochemical characteristics, they might become an excellent and most potential adsorbent.
Journal ArticleDOI
ZnO-based hollow nanoparticles by selective etching: elimination and reconstruction of metal-semiconductor interface, improvement of blue emission and photocatalysis.
TL;DR: The designed fabrication procedure is simple, feasible, and universal for a series of oxide and noble metal/oxide HNPs with controlled microstructure and improved performances.
Journal ArticleDOI
Spinel ferrite magnetic adsorbents: Alternative future materials for water purification?
TL;DR: Spinel ferrite (SF) magnetic materials are an important class of composite metal oxides containing ferric ions and having the general structural formula M 2+ Fe 2 3+ O 4.