Chitosan-modified palygorskite: Preparation, characterization and reactive dye removal
Source abstract
Abstract
Abstract Chitosan-modified palygorskite (CTS-modified PA) was prepared by surface grafting of PA with chitosan, and the CTS-modified PA was used as an effective adsorbent for the removal of reactive dye. The effects of various experimental parameters such as initial pH, adsorbent dosage, contact time and initial dye concentration on adsorption were investigated. The adsorption behavior of CTS-modified PA showed that the adsorption kinetics and isotherms were in good agreement with the pseudo-second-order equation and the Langmuir equation, and the maximum adsorption capacity of CTS-modified PA calculated by the Langmuir model was 71.38 mg g − 1 , which was much higher than that of the unmodified PA (6.3 mg g − 1 ).
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Adsorption and biosorption for pollutant removal · Clay minerals and soil interactions · Chemical Synthesis and Characterization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Adsorption of Congo red by chitosan hydrogel beads impregnated with carbon nanotubes10.1016/j.biortech.2009.10.051 ↗
2. Adsorption study for removal of Congo red anionic dye using organo-attapulgite10.1007/s10450-009-9155-z ↗
3. Membrane separation for wastewater reuse in the textile industry10.1016/S0921-3449(00)00079-3 ↗
4. Non-conventional low-cost adsorbents for dye removal: a review10.1016/j.biortech.2005.05.001 ↗
5. Comparative and competitive adsorption of copper, lead, and nickel using chitosan immobilized on bentonite10.1016/j.carbpol.2010.08.013 ↗
6. Dye removal from aqueous solution by adsorption on treated sawdust10.1016/S0960-8524(03)00058-0 ↗
7. Biosorbent for tungsten species removal from water: effects of co-occurring inorganic species10.1016/j.jcis.2005.06.016 ↗
8. Bacillus sp mutant for improved biodegradation of Congo red: random mutagenesis approach10.1016/j.biortech.2009.07.043 ↗
9. Pseudo-second order model for sorption processes10.1016/S0032-9592(98)00112-5 ↗
10. Discoloration and detoxicification of a Congo red dye solution by means of ozone treatment for a possible water reuse10.1016/j.jhazmat.2008.04.060 ↗
11. Application of expanded graphite/attapulgite composite materials as electrode for treatment of textile wastewater10.1016/j.clay.2009.09.006 ↗
12. A novel palygorskite-modified carbon paste amperometric sensor for catechol determination10.1016/j.aca.2011.01.007 ↗
13. Heavy metals removal from solution by polyaniline/palygorskite composite10.1002/app.34195 ↗
14. Clay–organic interactions10.1098/rsta.1984.0031 ↗
15. Interaction of alkyamines with different types of layered compounds10.1016/0167-2738(86)90057-3 ↗
16. Synthesis and decoloration capacity of well-defined and WMA-grafted palygorskite nanocomposites10.1016/j.eurpolymj.2008.03.023 ↗
17. Adsorption properties of hyperbranched aliphatic polyester grafted attapulgite towards heavy metal ions10.1016/j.jhazmat.2007.03.048 ↗
18. Surface modification of natural zeolite by chitosan and its use for nitrate removal in cold regions10.1016/j.coldregions.2010.03.002 ↗
19. Chitosan intercalated montmorillonite: preparation, characterization and cationic dye adsorption10.1016/j.clay.2008.04.013 ↗
20. Mechanisms of dye waste-water color removal by magnesium carbonate-hydrated basic10.2166/wst.1986.0045 ↗
21. Removal of organic dyes by magnetic alginate beads10.1016/j.watres.2007.09.024 ↗
22. Interactions of soluble chitosans with dyes in Water. I. Optical evidence10.1016/0144-8617(94)90112-0 ↗
23. A novel method to prepare chitosan/montmorillonite nanocomposites in the presence of hydroxy-aluminum oligomeric cations10.1016/j.compscitech.2007.10.007 ↗
24. Modified chitosan and calcium alginate biopolymer sorbents for removal of nickel (II) through adsorption10.1016/j.carbpol.2007.08.010 ↗
25. Fast removal of copper ions from aqueous solution by chitosan-g-poly (acrylic acid)/attapulgite composites10.1016/j.jhazmat.2009.02.120 ↗
26. Fast removal of methylene blue from aqueous solution by adsorption onto chitosan-g-poly (acrylic acid)/attapulgite composite10.1016/j.desal.2010.07.065 ↗
27. 2002
28. Adsorption of Hg (2+) from aqueous solution onto polyacrylamide/attapulgite10.1016/j.jhazmat.2009.06.048 ↗
29. Emerging trends and challenges in synthetic clay-based materials and layered double hydroxides10.1016/j.clay.2009.12.018 ↗
30. An overview on strategies towards clay-based designer catalysts for green and sustainable catalysis10.1016/j.clay.2011.04.016 ↗