Preparation of superhydrophobic Ag/Fe₂O₃/ZnO surfaces with photocatalytic activity

Abstract

Combining photocatalytic and superhydrophobicity characteristics on the same surface remains a challenge. In this work it was overcome that challenge by fabricated Ag/Fe 2 O 3 / ZnO heterostructure surfaces via using a simple precipitation method; stearic acid (SA) was then employed to improve the roughness and increase the water contact angles (WCA) of the surfaces. The effects of SA and Ag/Fe 2 O 3 on superhydrophobicity and photocatalytic characteristics were investigated. The wettability measurements confirmed that the WCA of the surfaces increased from 60 ± 2°to 154 ± 2°after modification with SA due to the formation of a hierarchical structure. To evaluate the photocatalytic performance of samples, methylene blue (MB) dye was irradiated under visible light with quick photodecomposition of MB after 80 min of irradiation. Finally, this innovative approach can be utilized to develop scaled-up self-cleaning applications.

Green synthesis and characterization of silver nanoparticles for reducing the damage to sperm parameters in diabetic compared to metformin

“…These results illustrated the AgNPs has been prepared, and agreement with the JCPDS (00-001-1167). The crystallite size of Ag/AgO NPs was calculated from the full width half-maximum, Bragg reflections by the Debye–Scherrer equation 36 : where is the crystallite size, Å is the wavelength of X-ray, is the full width half maximum (FWHM) of the peak in radians, and is the Bragg angle. The crystallite size of Ag/AgO NPs are shown in Table 1 .…”

“…These results illustrated the AgNPs has been prepared, and agreement with the JCPDS (00-001-1167). The crystallite size of Ag/AgO NPs was calculated from the full width half-maximum, Bragg reflections by the Debye-Scherrer equation 36 :…”

Vanadium promoted ZnO films: Effects on optical and photocatalytic properties

“…ZnO offers some benefits over the other TCOs because of its biocompatibility, chemical stability, and superior physical properties, which make it suitable for opto-electronic, spintronic, semiconducting, photocatalytic, piezoelectric, sensing, and resistive switching applications [3–9]. Surface changes can also combine photocatalytic activity with super hydrophobicity [10,11].…”