Intercalation of halloysite from Djebel Debagh (Algeria) and adsorption of copper ions

Mellouk, Senia; Cherifi, Souhila; Sassi, Mohamed; Marouf-Khelifa, Kheira; Bengueddach, Abdelkader; Schott, Jacques; Khelifa, Amine

doi:10.1016/j.clay.2009.02.008

Cited by 120 publications

(52 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3) shows that surface potential of the halloysite nanotube presents a larger negative charge in a wide pH range, and increases with increasing pH. The isoelectric point (pH iep ) of the halloysite is about 2.5, which is similar to previous report [27]. In this study, all pH values before and after adsorption are much higher than the pH corresponding to isoelectric point of the halloysite, suggesting negatively charged surface for the halloysite in the whole adsorption process.…”

Section: Effect Of Phsupporting

confidence: 89%

Trapping characteristic of halloysite lumen for methyl orange

Chen

Yan

Pei

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

Section: Effect Of Phsupporting

confidence: 89%

Trapping characteristic of halloysite lumen for methyl orange

Chen

Yan

Pei

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

“…The Algerian halloysites were also characterized to study the intercalation of Na + , NH 4+ , and Pb 2+ acetate and to pertain these solids for removal of copper (II) ions from aqueous solutions. The adsorption of copper ion is explained by electrostatic interaction between the copper (II) ions and negatively charged surface of halloysites and ion-exchange of cations within the acetate interlayer space 101 .…”

Section: Hnts and Dyesmentioning

confidence: 99%

Escalating Applications of Halloysite Nanotubes

Saif

Asif

2015

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

In nanotechnology different nano materials are used like carbon nanotubes, nanofluids, nanoparticles, nanoemulsions, nanocapsules, etc. Due to their toxic effects the results of these nano materials are not considered safe for humans and for the environment as well. Halloysite nanotubules (HNTs) having low cost are naturally occurring environmental friendly nanotubules. These are distinctive and handy materials formed by face weathering of aluminosilicate minerals having definite ratio of aluminum, silicon, hydrogen, and oxygen. HNTs have high mechanical strength and modulus. Due to these properties it is ideal for various applications; remediation of ecological contaminants, these are acting as a career for the delivery of drugs and various macro molecules, storage of H 2 gas, for catalytic conversions and for the processing of hydrocarbons. These are also used in anticancer therapy, sustained delivery for certain agents, as a template or nanoreactor for biocatalyst, in personal care, cosmetics and as environment caring. They are also used in the fabrication of high quality white-ware ceramics, nanotemplates and nano scale reaction bottles. Due to easy dispersability in polymer matrix, abundant availability and biocompatibility, HNTs are also used in different epoxy (EP) composites. In this review, we have tried to recap the different aspects of halloysites nanotubes for their use in different research fields.

show abstract

“…The XRD patterns of the fresh Cu(II)-clay catalyst are shown in Figure 1a. The 2θ at 8.4 o is commonly assigned to the characteristic peak of basal spacing (d 001) (2:1 TOT) of montomorillonite-KSF; the basal reflection represents the distance between two clay layers, including the thickness of one of the layers [22]. The presence of very low intensity diffraction peaks at 2θ of 36.1, 37.7, 38.9, 48.8, 53.60, and 58.7 which attributing to (110), (002), (111), (202) of CuO indicates that there are no sharp crystalline phases thus CuO being supported on MKSF in the form highly dispersed fine particles [23].…”

Section: Resultsmentioning

confidence: 99%

Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles

Dar¹,

Safvi

Rizvi

2017

Bull. Chem. React. Eng. Catal.

View full text Add to dashboard Cite

A simple and efficient synthesis of 2H-indazoles is achieved from 2-primary amines, bromobenzaldehydes and sodium azide through domino condensation, C-N and N-N bond formations, catalyzed by a heterogeneous Cu(II)-Clay catalyst. The recyclable heterogeneous Cu(II)-Clay catalyst exhibited a remarkable activity for the title reaction without any additives. An assortment of structurally diverse 2H-indazoles were prepared in good to excellent yields from easily available starting materials by using this protocol. The Cu(II)-Clay catalyst was characterized by using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Brunauer-Emmett-Teller (BET) techniques.

show abstract

Intercalation of halloysite from Djebel Debagh (Algeria) and adsorption of copper ions

Cited by 120 publications

References 28 publications

Trapping characteristic of halloysite lumen for methyl orange

Trapping characteristic of halloysite lumen for methyl orange

Escalating Applications of Halloysite Nanotubes

Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles

Contact Info

Product

Resources

About