Polypyrrole/palygorskite nanocomposite: A new chromate collector
Source abstract
Abstract
Abstract Polypyrrole (PPy) coated palygorskite (PG) was prepared via in situ polymerization of pyrrole on the surface of PG. Adsorption data indicated that nanocomposite was an efficient chromate collector from aqueous solution. The chromate removal was assumed to be mainly due to the anion exchange properties of the polymer PPy+Cl−. Adsorption kinetics was best described by the pseudo-second-order model, and Langmuir isotherm model fitted the experimental data significantly better than the Freundlich model. The adsorption process between PPy/PG and chromate was endothermic and spontaneous in nature. PPy/PG nanocomposite had a great potential application in recovery or elimination of anionic contaminations from wastewater.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Conducting polymers and applications · Adsorption and biosorption for pollutant removal · Chemical Synthesis and Characterization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Adsorption of dyes using shale oil ash10.1016/S0043-1354(00)00196-2 ↗
2. Adsorption of Cr(VI) from synthetic solutions and electroplating wastewaters on amorphous aluminium oxide10.1016/j.jhazmat.2006.08.004 ↗
3. Removal of Cr(VI) ions from aqueous solutions using poly 3-methyl thiophene conducting electroactive polymers10.1007/s10924-010-0199-7 ↗
4. Application of polypyrrole coated on wood sawdust for removal of Cr(VI) ion from aqueous solutions10.1016/j.reactfunctpolym.2007.02.001 ↗
5. Removal of chromium ions from aqueous solutions by polymer-enhanced ultrafiltration10.1016/j.jhazmat.2007.01.120 ↗
6. Enhanced removal of Cr(VI) from aqueous solution using polypyrrole/Fe3O4 magnetic nanocomposite10.1016/j.jhazmat.2011.03.062 ↗
7. Adsorption of Cr(VI) on activated rice husk carbon and activated alumina10.1016/S0960-8524(03)00204-9 ↗
8. Grape waste as a biosorbent for removing Cr(VI) from aqueous solution10.1016/j.jhazmat.2008.06.084 ↗
9. Influence of concentration of FeCl3 solution on properties of polypyrrole-Fe3O4 composites prepared by common ion absorption effect10.1016/j.synthmet.2004.04.018 ↗
10. Synthesis of polyaniline nanoparticle grafted silica gel and study of its Cr(VI) binding property10.1002/app.32790 ↗
11. Kinetics, isotherm and thermodynamics for Cr(III) and Cr(VI) adsorption from aqueous solutions by crystalline hydrous titanium oxide10.1016/j.jct.2007.05.014 ↗
12. Kinetics of chromium(VI) adsorption from model solutions on iron oxide10.1134/S1070427209050097 ↗
13. Removal and recovery of Cr(VI) from wastewater by maghemite nanoparticles10.1016/j.watres.2005.05.051 ↗
14. Application of expanded graphite/attapulgite composite materials as electrode for treatment of textile wastewater10.1016/j.clay.2009.09.006 ↗
15. Heavy metals removal from solution by polyaniline/palygorskite composite10.1002/app.34195 ↗
16. A novel technology for biosorption and recovery hexavalent chromium in wastewater by bio-functional magnetic beads10.1016/j.biortech.2007.12.002 ↗
17. Determination of chromium(VI) in black, green and herbal teas10.1016/j.foodchem.2011.05.124 ↗
18. Removal of hexavalent chromium from aqueous solution using low cost activated carbon derived from agricultural waste materials and activated carbon febric cloth10.1021/ie0400898 ↗
19. Synthesis of polypyrrole nanoparticles and its grafting with silica gel for selective binding of chromium(VI)10.1016/j.talanta.2010.11.037 ↗
20. Adsorption of dichromate ions on the cellulose/ZrO2·nH2O prepared by the methods of conventional precipitation and homogeneous solution precipitation10.1590/S0100-40422006000300017 ↗
21. Patterson · 1985
22. Heavy metals removal from solution by palygorskite clay10.1016/j.mineng.2005.07.004 ↗
23. Adsorption of Cr(VI) from aqueous solution by hydrous zirconium oxide10.1016/j.jhazmat.2009.08.131 ↗
24. Cr(VI) removal from synthetic wastewater using coconut shell charcoal and commercial activated carbon modified with oxidizing agents and/or chitosan10.1016/j.chemosphere.2003.10.001 ↗
25. DNA adsorption onto conducting polypyrrole10.1016/S0379-6779(96)03812-X ↗
26. Removal of Cr(VI) from aqueous solution by adsorption onto activated carbon10.1016/S0960-8524(01)00068-2 ↗
27. X-ray photoelectron spectroscopic studies of conductive polypyrrole complexes chemically synthesized with FeCl310.1103/PhysRevB.42.7563 ↗
28. Adsorptive removal of 2,6-dichlorophenol from aqueous solution by surfactant-modified palygorskite sorbents: equilibrium, kinetics and thermodynamics10.1260/0263-6174.29.2.185 ↗
29. Kinetics of adsorption on carbon from solution
30. Surface electric properties of polypyrrole in aqueous solutions10.1021/la034893v ↗
31. Selective adsorption behaviors of proteins on PPy-based adsorbents10.1016/j.seppur.2006.04.001 ↗
32. Adsorptive removal of Cr(III) and Fe(III) from aqueous solution by chitosan/attapulgite composites: equilibrium, thermodynamics and kinetics10.1016/j.cej.2010.12.009 ↗