Preparation Nature Nano-Bentonite as Adsorbent Heavy Metal Cd and Hg

Remediation of heavy metals in contaminated soil by using nano‐bentonite, nano‐hydroxyapatite, and nano‐composite

“…This may be due to exchanging Silica and magnesium ions in nanobentonite with HM (Makmur & Profita, 2018). It shows the highest adsorption capacity for both cationic and anionic molecules (Liu et al, 2012).…”

“…Nano‐bentonite is highly efficient in removing Cd and Hg from wastewater with adsorption power of 99.03% and 99.18% (Sirait & Manalu, 2018). Numerous studies demonstrated that n‐Be is safe in its nano‐size concern mutagenic properties (Degtyareva et al, 2016).…”

“…This mechanism (co-precipitation) seems more efficient for the sorption of most HM, for example, Pb. For example, He et al (2013) Nano-bentonite is highly efficient in removing Cd and Hg from wastewater with adsorption power of 99.03% and 99.18% (Sirait & Manalu, 2018). Numerous studies demonstrated that n-Be is safe in its nano-size concern mutagenic properties (Degtyareva et al, 2016).…”

“…In addition, magnetic clays and Be were examined to adsorb Cd and Ni in aqueous solutions (Galamboš et al, 2009). Nano-bentonite is used as an adsorbent to remove HM such as Cd, Hg, Ni, and Pb (Doaa et al, 2020;Hend et al, 2016;Makmur & Profita, 2018).…”

Removal of iron, zinc, and nickel-ions using nano bentonite and its applications on power station wastewater

“…With the development of nanotechnology, several researchers have proved that nanomaterials are effective sorbents for the removal of heavy metal ions from wastewater due to their unique structure [4]. Nano Bentonite can be used as an alternative adsorbent because the cost is cheap and abundant in nature and so because the main constituents of Nano bentonite are montmorillonite mineral has a 3-layered structure with a 2: 1 configuration consisting of 2 layers of tetrahedral silica and 1 octahedral layer as a central, the existence of isomorphic substitution in the basic structure causes the formation of negative charges on its surface, this part called the active site which can be used as an adsorbent to bind cations and organic and metallic compounds through electrostatic bonds [5]. The aim of this work is studying the elimination of zinc(II), nickel(II), and iron(III) from wastewater using Nano bentonite as the adsorbent material and make an application of this on some collector samples from the wastewater of electrical power station in Damanhur and wastewater sample collected from one of the major metal coating workshops in Almeria, Alexandria, Egypt.…”