Preparation of Laponite hydrogel in different shapes for selective dye adsorption and filtration separation
Source abstract
Abstract
Abstract The Laponite (Lap) hydrogel capsule was prepared by adding the Lap solution dropwise to an aluminum salt solution. It showed good stability in pH 7–8 and salt solution. When screening with 6 different dyes, the Lap capsule showed a high affinity to cationic dyes, methylene blue (MEB) and crystal violet (CV), but a low affinity to anionic dyes. Further study revealed that adsorption capacities reached 405 mg/g for MEB and 506 mg/g for CV at C0 = 400 ppm, higher than the report of the silicates adsorbents in literature. Furthermore, they can be repeatedly used for dyes removal. The adsorption thermodynamic and kinetics were also investigated. Meanwhile, the capsules showed good selectivity to remove MEB and CV from their mixture with methyl orange. Finally, the Lap hydrogel was coated on a filter paper to prepare the Lap hydrogel membrane, which can be used to separate the oil-water emulsion solution. This preliminary investigation provides new knowledge to extend the application of Lap in wastewater purification and treatment.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Analytical Chemistry and Sensors · Membrane Separation Technologies · Adsorption and biosorption for pollutant removal
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (79)
Show source-provided references
1. Applications of MXene-based membranes in water purification: a review10.1016/j.chemosphere.2020.126821 ↗
2. Fabrication of polycarbonate ultrafiltration mixed matrix membranes including modified halloysite nanotubes and graphene oxide nanosheets for olive oil/water emulsion separation10.1016/j.seppur.2020.117332 ↗
3. Behaviour of LAPONITE® gels: Rheology, ageing, pH effect and phase state in the presence of dispersant10.1016/j.cherd.2015.07.023 ↗
4. Colloidal capsules: nano-and microcapsules with colloidal particle shells10.1039/C6CS00632A ↗
5. Poly(N,N-dimethylaminoethyl methacrylate-co-2-acrylamido- 2-methyl-propanosulfonic acid)/Laponite nanocomposite hydrogels and cryogels with improved mechanical strength and rapid dynamic properties10.1016/j.clay.2015.12.018 ↗
6. Enhanced and selective adsorption of cationic dyes using novel biocompatible self-assembled peptide fibrils10.1016/j.jenvman.2019.109804 ↗
7. Efficient removal of Indigo Carmine dye by a separation process, Water Sci
8. Treatment of Crystal violet from synthetic solution using membranes doped with natural fruit extract10.1002/clen.201700413 ↗
9. Enhancement of adsorption ability of calcium alginate gel beads towards Pd(II) ion. A kinetic and equilibrium study on hybrid Laponite and Montmorillonite–alginate gel beads10.1016/j.clay.2015.09.014 ↗
10. A novel mesoporous silicate material (MS) preparation from dolomite and enhancing methylene blue removal by electronic induction10.1016/j.jtice.2017.08.044 ↗
11. Rapid preparation of polysaccharide hydrogel capsule free of organic reagents to control drug release10.1016/j.matlet.2017.03.099 ↗
12. Synthesis, characterization and study of covalently modified triazole LAPONITE edges10.1016/j.clay.2020.105489 ↗
13. LAPONITE-pilocarpine hybrid material: experimental and theoretical evaluation of pilocarpine conformation10.1039/C7RA02017A ↗
14. Fast Gelation of Ti3C2Tx MXene Initiated by Metal Ions10.1002/adma.201902432 ↗
15. Mesoporous zinc silicate composites derived from iron ore tailings for highly efficient dye removal: Structure and morphology evolution10.1016/j.micromeso.2020.110352 ↗
16. Synergistic effect ofLaponiteRD and oil soluble surfactant in stabilization of miniemulsions10.1016/j.clay.2011.10.015 ↗
17. IR radiation assisted preparation of KOH-activated polymer-derived carbon for methylene blue adsorption10.1016/j.jece.2019.103514 ↗
18. Water and salt dynamics in multilayer graphene oxide (GO)membrane: Role of lateral sheet dimensions10.1016/j.memsci.2018.06.031 ↗
19. Laponite immobilized TiO2 catalysts for photocatalytic degradation of phenols10.1016/j.jphotochem.2019.112045 ↗
20. Gelatin and Non-GelatinCapsuleDosage Forms10.1016/j.xphs.2017.02.006 ↗
21. MembranesforWaterTreatmentapplications – an Overview10.1021/bk-2011-1078.ch010 ↗
22. Hybrid Graphene Oxide/LaponiteLayeredMembraneswith Stable Two-Dimensional Nanochannels for Efficient Separations in Aqueous Environments10.1021/acs.iecr.0c02103 ↗
23. Ianchis · 2017
24. Hydrogel-clay nanocomposites as carriers for controlled release10.2174/0929867325666180831151055 ↗
25. Chemical stability of Laponite in aqueous media10.1016/j.clay.2014.06.004 ↗
26. Facile synthesis and properties of hierarchical double-walled copper silicate hollow nanofibers assembled by nanotubes10.1021/nn500275d ↗
27. A review on polymeric hydrogel membranes for wound dressing applications: PVA-basedhydrogeldressings10.1016/j.jare.2017.01.005 ↗
28. 2D Laminar Membranes for Selective Water and Ion Transport10.1002/adfm.201902014 ↗
29. Preparation of millimeter-sized chitosan/carboxymethyl cellulose hollowcapsuleand its dyeadsorptionproperties10.1016/j.carbpol.2020.116481 ↗
30. Pyrolytic valorization of water treatment residuals containing powdered activated carbon as multifunctional adsorbents10.1016/j.chemosphere.2020.126641 ↗
31. Gelatin Effects on the Physicochemical and Hemocompatible Properties of Gelatin/PAAm/LaponiteNanocomposite Hydrogels10.1021/acsami.5b05287 ↗
32. Hydrothermal synthesis and characterization of ordered mesoporous magnesium silicate-silica for dyes adsorption10.1016/j.matlet.2016.02.029 ↗
33. Preparation of Carbonized MOF/MgCl2 Hybrid Products as Dye Adsorbent and Supercapacitor: Morphology Evolution and Mg Salt effect10.1021/acs.iecr.8b06437 ↗
34. Ultra-thin titanium carbide (MXene) sheet membranes for high-efficient oil/ water emulsions separation10.1016/j.memsci.2019.117361 ↗
35. Biofouling mitigation effect of thin film nanocomposite membranes immobilized with laponite mediated metal ions10.1016/j.desal.2019.114162 ↗
36. A mussel inspired highly stable graphene oxide membrane for efficient oilin-water emulsions separation Sep10.1016/j.seppur.2018.01.041 ↗
37. Magnetic hydrogel beads based on PVA/sodium alginate/laponite RD and studying their BSA adsorption10.1016/j.carbpol.2016.04.024 ↗
38. Influence of membrane hydrophilicity on water permeability: an experimental study bridging simulations10.1016/j.memsci.2020.118087 ↗
39. Synthesis and fabrication of antibacterialhydrogelbeads based on modified-gum tragacanth/poly(vinyl alcohol)/Ag0 highly efficient sorbent for hard water softening10.1016/j.chemosphere.2019.03.040 ↗
40. Versatile poly(vinyl alcohol)/clay physical hydrogels with tailorable structure as potential candidates for wound healing applications10.1016/j.msec.2019.110395 ↗
41. Morphology, Surface Layer Evolution, and Structure–Dye Adsorption Relationship of Porous Fe3O4 MNPs prepared by Solvothermal/Gas Generation Process10.1021/acssuschemeng.6b02670 ↗
42. Monoglyceride-based cubosomes stabilized byLaponite: Separating the effects of stabilizer, pH and temperature10.1016/j.colsurfa.2010.01.021 ↗
43. Polycaprolactone-laponite composite scaffold releasing strontium ranelate for bone tissue engineering applications10.1016/j.colsurfb.2016.03.033 ↗
44. Synthesis of diglycolic acid functionalized core-shell silica coated Fe3O4 nanomaterials for magnetic extraction of Pb(II) and Cr(VI) ions10.1038/s41598-020-67168-2 ↗
45. UV–vis, IR and 1H NMR spectroscopic studies and characterization of ionic-pair crystal violet–oxytetracycline10.1016/j.saa.2009.11.002 ↗
46. Aminofunctionalized LAPONITE as a versatile hybrid material for chlorhexidine digluconate incorporation: Cytotoxicity and antimicrobial activities10.1016/j.clay.2020.105733 ↗
47. Preparation of PMMA/GOand PMMA/GO-Fe3O4 nanocomposites for malachite green dyeadsorption: Kinetic and thermodynamic studies10.1016/j.compositesb.2019.03.030 ↗
48. Water-processablelaponite/polyaniline/graphene oxide nanocomposites for energy applications10.1021/la5046783 ↗
49. Effects of aging on the yielding behaviour of acid and salt induced Laponite gels10.1016/j.colsurfa.2017.03.006 ↗
50. A review on two-dimensional metal oxide and metal hydroxide nanosheets for modification of polymeric membranes10.1016/j.jiec.2019.11.002 ↗
51. COx-free hydrogen generation via decomposition of ammonia over al, Ti and Zr-Laponite supported MoS2 catalysts10.1016/j.ijhydene.2020.01.062 ↗
52. Preparation and characterization of PVA/GA/Laponite membranes to enhance pervaporation desalination performance10.1016/j.seppur.2019.03.084 ↗
53. New hydrogel materials for improving solar water evaporation, desalination and wastewater treatment: a review10.1016/j.desal.2020.114564 ↗
54. Novel Wet-White Tanning Approach based onLaponiteClay Nanoparticles for Reduced Formaldehyde Release and improved Physical Performances10.1021/acssuschemeng.8b04845 ↗
55. Inorganic-organic bio-nanocomposite films based on Laponite and Cellulose Nanofibers (CNF)10.1016/j.clay.2018.12.003 ↗
56. On the comparison of pseudo-first order and pseudo-second order rate laws in the modeling of adsorption kinetics10.1016/j.cej.2016.04.079 ↗
57. Enhancing the Gelation and Bioactivity of Injectable Silk Fibroin Hydrogel with Laponite Nanoplatelets10.1021/acsami.6b00891 ↗
58. Effects of molecular mass of polymer and composition on the compressive properties of hydrogels composed of Laponite and sodium polyacrylate10.1016/j.clay.2016.01.030 ↗
59. Hydrothermally synthesized N2-UiO-66 for enhanced and selective adsorption of cationic dyes10.1016/j.eti.2020.101021 ↗
60. Carboxymethylcellulose hydrogels cross-linked with magnetite nanoparticles for the removal of organic and inorganic pollutants from water10.1016/j.jece.2017.07.025 ↗
61. MXenes—A new class of 2D layered materials: Synthesis, properties, applications as supercapacitor electrode and beyond10.1016/j.apmt.2019.100509 ↗
62. Industrialwaterpollution,waterenvironment treatment, and health risks in China10.1016/j.envpol.2016.07.011 ↗
63. Adsorptionof Polycyclic Aromatic Hydrocarbons by Graphene and Graphene Oxide Nanosheets10.1021/es405227u ↗
64. All-into-one strategy to synthesize mesoporous hybrid silicate microspheres from naturally rich red palygorskite clay as high-efficient adsorbents10.1038/srep39599 ↗
65. Self-template synthesis of nickel silicate and nickel silicate/nickel composite nanotubes and their applications in wastewater treatment10.1016/j.jcis.2018.03.044 ↗
66. Mesoporous silicate/carbon composites derived from dye-loaded palygorskite clay waste for efficient removal of organic contaminants10.1016/j.scitotenv.2019.133955 ↗
67. The hierarchical flower-like MoS2 nanosheets incorporated into PES mixed matrixmembranesfor enhanced separation performance10.1016/j.chemosphere.2020.127099 ↗
68. Selective Adsorption of Cationic Dyes for Stable Metal−Organic Framework ZJU-4810.1021/acsomega.0c00385 ↗
69. Assembly of 2D MXene nanosheets and TiO2 nanoparticles for fabricating mesoporous TiO2-MXene membranes10.1016/j.memsci.2018.03.077 ↗
70. Preparation of intelligent DNA hydrogel and its applications in biosensing10.1016/j.eurpolymj.2020.109951 ↗
71. Ultrathin sodium ferric silicate 2D nanosheets: a novel and robust adsorbent for selective removal of cationic dyes in wastewater10.1016/j.jallcom.2019.01.030 ↗
72. Highly Stable Lithium–Sulfur Batteries based on Laponite Nanosheet-Coated Celgard Separators10.1002/aenm.201801778 ↗
73. A fluorescent Pickering-emulsion stabilizer prepared using carbon nitride quantum dots and laponite nanoparticles10.1016/j.colsurfa.2018.12.021 ↗
74. An amperometric biosensor based on lactate oxidase immobilized inlaponite–chitosanhydrogelon a glassy carbon electrode. Application to the analysis ofl-lactate in food samples10.1016/j.snb.2010.11.026 ↗
75. Environmentally friendly electrostatically driven self-assembled LDH/GO/PVDF compositemembranefor water treatment10.1016/j.clay.2019.105322 ↗
76. Reversible Assembly of Graphitic Carbon Nitride 3D Network for Highly Selective Dyes Absorption and Regeneration10.1021/acsnano.6b05488 ↗
77. Characterization of mesoporous magnesium silicate with hierarchical structure and its adsorption performance for dye and lead ion10.1016/j.surfin.2017.05.005 ↗
78. Ultrathin 2D Ti3C2Tx MXene membrane for effective separation of oil-in-water emulsions in acidic, alkaline, and salty environment10.1016/j.jcis.2019.11.069 ↗
79. Swelling of Graphene OxideMembranesin Aqueous solution: Characterization of Interlayer Spacing and Insight into Water Transport Mechanisms10.1021/acsnano.7b02999 ↗