ZnO/montmorillonite for photocatalytic and photochemical degradation of methylene blue
Source abstract
Abstract
Abstract Synthesis of a ZnO/montmorillonite photocatalyst based on an Indonesian natural montmorillonite was conducted using a sol–gel intercalation method. The physicochemical properties of the material were determined by XRD, N2 adsorption–desorption, SEM, TEM and UV–Vis diffuse reflectance. The activity was evaluated in photocatalytic and photochemical degradation of methylene blue (MB) with and without H2O2. Characterization showed that the ZnO particles were successfully distributed in montmorillonite support and ZnO/montmorillonite had lower band gap energy. The increased adsorption of MB on ZnO/montmorillonite resulted in faster photodegradation. The kinetics of the reaction obeyed the Langmuir–Hinshelwood model.
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Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Sol–gel and thermally evaporated nanostructured thin ZnO films for photocatalytic degradation of trichlorophenol10.1007/s11671-009-9290-1 ↗
2. Photocatalytic water treatment: solar energy applications10.1016/j.solener.2004.03.031 ↗
3. Photodegradation of methylene blue dye by the UV/H202 and UV/acetone oxidation processes10.1016/j.desal.2005.04.005 ↗
4. Photoreactivity of ZnO nanoparticles in visible light: effect of surface states on electron transfer reaction10.1063/1.3100221 ↗
5. Kinetic study on photocatalytic degradation of C.I. Acid Yellow 23 by ZnO photocatalyst10.1016/j.jhazmat.2005.10.022 ↗
6. A rate-controlling step in Langmuir–Hinshelwood kinetic models10.1002/cjce.5450780310 ↗
7. Impregnation of ZnO onto activated carbon under hydrothermal conditions and its photocatalytic properties10.1007/s10853-006-7341-x ↗
8. Advanced oxidation processes for water treatment: advances and trends for R&D10.1002/jctb.1873 ↗
9. Synthesis and characterization of nano-sized ZnO powders by direct precipitation method10.1016/j.cej.2008.07.047 ↗
10. Removal of C.I. Acid Orange 7 from aqueous solution by UV irradiation in the presence of ZnO nanopowder10.1016/j.jhazmat.2006.08.072 ↗
11. Photocatalytic degradation of azo dye acid red 14 in water on ZnO as an alternative catalyst to TiO210.1016/S1010-6030(03)00378-2 ↗
12. Preparation and characterization of hydrophobic TiO2 pillared clay: the effect of acid hydrolysis catalyst and doped Pt amount on photocatalytic activity10.1016/j.jcis.2007.12.042 ↗
13. Composites of TiO2-aluminum pillared montmorillonite: synthesis, characterization and photocatalytic degradation of methylene blue10.1016/j.clay.2010.08.016 ↗
14. Mesosynthesis of ZnO–SiO2 porous nanocomposites with low-defect ZnO nanometric domains10.1088/0957-4484/19/22/225603 ↗
15. Reversible photoreduction of methylene blue in acrylate media containing benzyl dimethyl ketal10.1016/j.jphotochem.2007.11.005 ↗
16. New and emerging developments in solar energy
17. Photocatalytic degradation pathway of methylene blue in water10.1016/S0926-3373(00)00276-9 ↗
18. Synthesis of ZnO nanoparticles embedded in a polymeric matrix; effect of curing temperature
19. Synthesis and structural and photocatalytic properties of TiO2/montmorillonite nanocomposites
20. Azo dye degradation using Fenton type processes assisted by UV irradiation: a kinetic study10.1016/j.jphotochem.2005.11.024 ↗
21. Adsorption of dyes from aqueous solutions or suspensions with clay nano-adsorbents10.1016/j.seppur.2007.07.007 ↗
22. Optimal photodegradation of reactive blue 9 on TiO2 and ZnO suspension, Catal10.1016/S0920-5861(02)00222-5 ↗
23. Structure and photoluminescent properties of zno encapsulated in mesoporous silica SBA-15 fabricated by two-solvent strategy nanoscale
24. New titania-clay nanostructured porous materials10.1016/j.micromeso.2009.12.031 ↗
25. Sol–gel immobilization of SiO2/TiO2 on hydrophobic clay and its removal of methyl orange from water10.1007/s10971-008-1677-4 ↗
26. ZnO nanoparticles supported on mesoporous MCM-41 and SBA-15: a comparative physicochemical and photocatalytic study10.1007/s10853-010-4652-8 ↗
27. Review: heterogeneous photocatalytic treatment of organic dyes in air and aqueous media10.1016/j.jphotochemrev.2008.09.001 ↗
28. Dual-effects of adsorption and photodegradation of methylene blue by tungsten-loaded titanium dioxide10.1016/j.cej.2010.01.010 ↗
29. Photochemistry at high temperatures — potential of ZnO as a high temperature photocatalyst10.1007/s003390050451 ↗
30. A characterization study of some aspects of the adsorption of aqueous Co2+ ions on a natural bentonite clay10.1016/j.jcis.2006.04.069 ↗
31. Zn-modified MCM-41 as support for Pt catalysts10.1016/j.apcata.2008.08.021 ↗
32. Photocatalytic degradation of reactive brilliant blue X-BR in aqueous solution using quantum-sized ZnO10.1016/j.materresbull.2007.08.029 ↗
33. Phenanthroline Cu(II)-bentonite composite characterization10.1007/s10973-005-0784-5 ↗
34. Studies on the adsorption and kinetics of photodegradation of a model compound for heterogeneous photocatalysis onto TiO210.1016/j.chemosphere.2005.11.050 ↗
35. Understanding the quantum size effects in ZnO nanocrystals10.1039/b310404d ↗
36. Core/shell structured ZnO/SiO2 nanoparticles: preparation, characterization and photocatalytic property10.1016/j.apsusc.2010.06.091 ↗
37. Synthesis and characterization of TiO2-montmorillonite nanocomposites and their photocatalytic activity10.1134/S0023158410040117 ↗
38. ZnO nanoparticles immobilized on flaky layered double hydroxides as photocatalysts with enhanced adsorptivity for removal of Acid Red G10.1021/la1019313 ↗