Synthesis of ZnO/Ag2O nanocomposites as a highly efficient visible active photocatalyst for toxic dyes

Автор: Fatima Allawi

Статья в выпуске: 30, 2024 года.

Бесплатный доступ

By combining hydrothermal technology and deposition, it is possible to synthesize ZnO/Ag2O nanocomposites simply and effectively. The structures, compositions and morphologies of ZnO/Ag2O composites were characterized by XRD, EDS, SEM and TEM. The photocatalytic performance of the photocatalyst for degrading methylene blue (MB) has been evaluated under visible light. Specifically, The results showed that the most photocatalytic activity of MB in ZnO/Ag2O nanocomposites is two times higher than pure ZnO. Under irradiation with light. The increase in photocatalytic activity is due to the formation of heterostructures between Ag2O and ZnO, strong visible light absorption and better separation efficiency of photo-induced e––h+ pairs. In addition, the nanocomposite ZnO/Ag2O appeared to be completely stable against photodegradation under wight light. Finally, after washing dyes on the surface with high efficiency, the photooxidation process was repeated four times in the same ZnO/Ag2O nanocomposite.

Еще

ZnO/Ag2O nanocomposite, Hydrothermal, Photocatalytic, Methylene blue

Короткий адрес: https://sciup.org/148328637

IDR: 148328637

Список литературы Synthesis of ZnO/Ag2O nanocomposites as a highly efficient visible active photocatalyst for toxic dyes

Chen J, et al. Application of nano TiO2 towards polluted water treatment combined with electro-photochemical method. Water Res. Sep. 2003; 37(16): 3815–20.
De Simone S, et al. Development of silver nano- coatings on silk sutures as a novel approach against surgical infections. J. Mater. Sci. Mater. Med. Sep. 2014; 25(9): 2205-14.
Tubtimtae A, et al. Ag2S quantum dot sensitized solar cells. Electrochem. Commun. 2010; 9(12): 1158–60.
Fakhri A, et al. Structural, optical, photoluminescence and antibacterial properties of copper-doped silver sulfide nanoparticles. J. Photochem. Photobiol. B. Aug. 2015;149:78-83.
Mishra PK, et al. Zinc oxide nanoparticles: a promising nanomaterial for biomedical applications. Drug Discovery Today. 2017;22(12):1825-34.
A. Kolodziejczak-Radzimska and T. Jesionowski. Zinc oxide–from synthesis to application: a review. Materials. 2014;7(4):2833-81.
Sahoo S, et al. Effect of zinc oxide nanoparticles as cure activator on the properties of natural rubber and nitrile rubber. Journal of Applied Polymer Science. 2007;105(4):2407–15.
Newman MD, Stotland M, Ellis JI. Safety of nanosized particles in titanium dioxide- and zinc oxidebased sunscreens. Journal of the American Academy of Dermatology. 2009;61(4):685-92.
Hatamie A, et al. Zinc oxide nanostructure-modified textile and its application to biosensing, photocatalysis, and as antibacterial material. Langmuir. 2015; 31(39):10913-21.
Kadhim MJ, Mahdi MA, Hassan JJ. Influence of pH on the photocatalytic activity of ZnO nanorods. Materials international. 2020;2(2):64-72.
Urmila Chakraborty, et al. Microwave-assisted assembly of Ag2O-ZnO composite nanocones for electrochemical detection of 4-Nitrophenol and assessment of their photocatalytic activity towards degradation of 4-Nitrophenol and Methylene blue dye. Journal of Hazardous Materials. 2021;416.
Xiao FX, et al. Spatially branched hierarchical ZnO nanorod-TiO2 nanotube array heterostructures for versatile photocatalytic and photoelectrocatalytic applications: towards intimate integration of 1D-1D hybrid nanostructures. Nanoscale. 2014;6(24):14950-61.
Abhijit Kadam, et al. Template free synthesis of ZnO/Ag2O nanocomposites as a highly efficient visible active photocatalyst for detoxification of methyl orange. Journal of Photochemistry and Photobiology, B: Biology. 2016;154:24-33.
Rauf Foroutan, et al. Sono-Photocatalytic Activity of Cloisite 30B/ZnO/Ag2O Nanocomposite for the Simultaneous Degradation of Crystal Violet and Methylene Blue Dyes in Aqueous Media. J. Nanomaterials. 2022;12:3103.
Bagwan UR, et al. Effect of titanium dioxide and gadolinium dopants on photocatalytic behavior for acriflavine dye. Journal of Rare Earths. Mar. 2020;38(3):234-40.
Nayak P, et al. ZnO/CuO nanocomposites from recycled printed circuit board: preparation and photocatalytic properties. Environmental Science and Pollution Research. Jun. 2019;26(16)L16279-88.
Bu Y, Chen Z, Li W. A ZnFe2O4-ZnO nanorod array p-n junction composite and its photoelectrochemical performance. Dalton Transactions. 2013; 42(46): 16272-5.
Chen H, Liu W, Qin Z. ZnO/ZnFe2O4 nanocomposite as a broad-spectrum photo-Fentonlike Photocatalyst with near-infrared activity. Catal Sci Technol. 2017;7(11):2236-44.
Wang W, et al. P-n junction CuO/BiVO4 heterogeneous nanostructures: Synthesis and highly efficient visible-light photocatalytic performance. Dalton Transactions. May 2014;43(18):6735-43.
Lee SH, Jun BH. Silver nanoparticles: synthesis and application for nanomedicine. Int. J. Mol. Sci. 2019;20(4):865.
Reda M. Mohamed, et al. Facile Synthesis of Mesoporous Ag2O−ZnO Heterojunctions for Efficient Promotion of Visible Light Photodegradation of Tetracycline. J. ACS MEGA. 2020;19.
Nami M, Sheibani S, Rashchi F. Photocatalytic performance of coupled semiconductor ZnO–CuO nanocomposite coating prepared by a facile brass anodization process. Mater Sci Semicond Process. 2021;135.
Erdem E. Microwave power, temperature, atmospheric and light dependence of intrinsic defects in ZnO nanoparticles: A study of electron paramagnetic resonance (EPR) spectroscopy. J Alloys Compd. 2014;605:34–44.
Liu Y, et al. Attapulgite/bentonite interactions for methylene blue adsorption characteristics from aqueous solution. Chemical Engineering Journal. 2014;237:403–10.
Kadhim MJ, et al. The most important parameters that affect the photocatalytic activity of ZnO nanostructures against organic dyes: A Review. Iranian Journal of Catalysis. 2023;13(1):1-21.
Kalaycıoğlu Z, et al. Efficient Photocatalytic Degradation of Methylene Blue Dye from Aqueous Solution with Cerium Oxide Nanoparticles and Graphene Oxide-Doped Polyacrylamide. ACS Omega. Apr. 2023.

Еще

Статья научная