Facile fabrication of highly efficient AgI/ZnO heterojunction and its application of methylene blue and rhodamine B solutions degradation under natural sunlight
Source abstract
Abstract
Abstract The AgI/ZnO heterojunction was successfully synthesized by in situ deposition method and was found to be a natural sunlight driven photocatalyst. The photocatalytic efficiency of AgI/ZnO was evaluated by the degradation of rhodamine B under visible light irradiation. The influence of various operational parameters such as the effect of loading amount, catalyst dosage and initial RhB concentration on the photodegradation was investigated in detail and the results were discussed. The results indicated that the AgI/ZnO composites displayed much higher photocatalytic performances over ZnO as well as AgI. Moreover, the catalyst obviously showed higher efficiency for the degradation of methylene blue and rhodamine B under natural sunlight than a 500 W Xe lamp, and nearly 100% of dyes were degraded only in 120 min under the optimum conditions. At last, the quenching effects of different scavengers suggested that the reactive •OH and h+ play the major role in the RhB degradation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Enhanced photocatalysis of electrospun Ag–ZnO heterostructured nanofibers10.1021/cm900225p ↗
2. Bahnemann environmental applications of semiconductor photocatalysis10.1021/cr00033a004 ↗
3. Semiconductor-based photocatalytic hydrogen generation10.1021/cr1001645 ↗
4. Modified TiO2 for environmental photocatalytic applications: a review10.1021/ie303468t ↗
5. Optimized photodegradation of reactive blue 19 on TiO2 and ZnO suspensions10.1016/S0920-5861(02)00222-5 ↗
6. Low-temperature growth of well-aligned ZnO nanorods by chemical vapor deposition10.1002/1521-4095(20020205)14:3<215::AID-ADMA215>3.0.CO;2-J ↗
7. Simple one-pot synthesis of ZnO/Ag heterostructures and the application in visible-light-responsive photocatalysis10.1039/C3RA46655H ↗
8. Graphene–Ag/ZnO nanocomposites as high performance photocatalysts under visible light irradiation10.1016/j.jallcom.2013.06.137 ↗
9. Visible light driven type II heterostructures and their enhanced photocatalysis properties: a review10.1039/c3nr01577g ↗
10. One-pot synthesis of visible-light-driven plasmonic photocatalyst Ag/AgCl in ionic liquid10.1021/am100781n ↗
11. One-step hydrothermal synthesis of the Ag/AgI heterojunction with highly enhanced visible-light photocatalytic performances10.1049/mnl.2014.0099 ↗
12. Visible-light-induced photocatalytic degradation of azodyes in aqueous AgI/TiO2 dispersion10.1021/es061599r ↗
13. Simple and large scale one-pot method for preparation of AgBr–ZnO nanocomposites as highly efficient visible light photocatalyst10.1016/j.apsusc.2013.07.079 ↗
14. Preparation of AgCl–ZnO nanocomposites as highly efficient visible-light photocatalysts in water by one-pot refluxing method10.1016/j.jallcom.2014.02.111 ↗
15. One-step synthesis of the nanostructured AgI/BiOI composites with highly enhanced visible-light photocatalytic performances10.1021/la903943s ↗
16. High-efficiency visible-light-driven Ag3PO4/AgI photocatalysts: z-scheme photocatalytic mechanism for their enhanced photocatalytic activity10.1021/jp406508y ↗
17. Ion-exchange preparation for visible-light-driven photocatalyst AgBr/Ag2CO3 and its photocatalytic activity10.1039/c3ra46111d ↗
18. Photocatalytic activity of AgI sensitized ZnO nanoparticles under visible light irradiation10.1016/j.powtec.2012.03.015 ↗
19. Visible-light-driven photocatalyst of Bi2WO6 nanoparticles prepared via amorphous complex precursor and photocatalytic properties10.1016/j.jssc.2005.09.041 ↗
20. Catalysis with TiO2/gold nanocomposites. Effect of metal particle size on the Fermi level equilibration10.1021/ja0315199 ↗
21. TiO2 photocatalysis: design and applications10.1016/j.jphotochemrev.2012.06.001 ↗
22. Synthesis of ZnFe2O4/ZnO nanocomposites immobilized on graphene with enhanced photocatalytic activity under solar light irradiation10.1016/j.jallcom.2013.02.147 ↗
23. A review on the visible light active titanium dioxide photocatalysts for environmental applications10.1016/j.apcatb.2012.05.036 ↗
24. Simple and large scale refluxing method for preparation of Ce-doped ZnO nanostructures as highly efficient photocatalyst10.1016/j.apsusc.2012.11.053 ↗
25. Decolorization and degradation of reactive azo dyes via heterogeneous photocatalytic processes10.1016/j.desal.2009.09.054 ↗
26. Photocatalytic degradation of model textile dyes in wastewater using ZnO as semiconductor catalyst10.1016/j.jhazmat.2004.05.013 ↗
27. The effect of operational parameters on the photocatalytic degradation of acid red 18 by ZnO10.1016/j.seppur.2007.01.032 ↗
28. Degradation of acid orange 7 using magnetic AgBr under visible light: the roles of oxidizing species10.1016/j.chemosphere.2009.06.027 ↗
29. Facile construction of heterostructured BiVO4–ZnO and its dual application of greater solar photocatalytic activity and self-cleaning property10.1021/ie404287m ↗
30. Synthesis and characterization of AgBr/AgNbO3 composite with enhanced visible-light photocatalytic activity10.1016/j.apsusc.2013.02.004 ↗
31. Highly efficient visible light-driven Ag/AgBr/ZnO composite photocatalyst for degrading Rhodamine B10.1016/j.ceramint.2013.09.080 ↗
32. Porous peanut-like Bi2O3–BiVO4 composites with heterojunctions: one-step synthesis and their photocatalytic properties10.1039/c2dt30543g ↗