2020
DOI: 10.1016/j.colsurfa.2020.125451
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CBD grown pure and Ce-doped ZnO nanorods: Comparison of their photocatalytic degrading efficiencies on AR88 azo dye under visible light irradiation

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Cited by 18 publications
(13 citation statements)
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“…Sa et al [ 24 ] evaluated this parameter inthe degradation of a bentazone herbicide. In order to estimate the photocatalytic activity of ZnO and Ce nanorods under the same conditions with the best 1% CZ sample, Kardes et al [ 65 ] observed three consecutive runs of color removal in AR88 azo dye. They observed a slight decrease in the percentage performance in each run, and the reason for the decrease was investigated by the ratio of ZnO leaching in the dye solution.…”
Section: Resultsmentioning
confidence: 99%
“…Sa et al [ 24 ] evaluated this parameter inthe degradation of a bentazone herbicide. In order to estimate the photocatalytic activity of ZnO and Ce nanorods under the same conditions with the best 1% CZ sample, Kardes et al [ 65 ] observed three consecutive runs of color removal in AR88 azo dye. They observed a slight decrease in the percentage performance in each run, and the reason for the decrease was investigated by the ratio of ZnO leaching in the dye solution.…”
Section: Resultsmentioning
confidence: 99%
“…The most popular assumption is that the inclusion of Ce in the lattice sites of ZnO can generate discrete energy levels between the VB and the CB: the presence of such localized electronic energy states is suggested by the strengthened visible photon absorption. In particular, the empty localized 4f orbitals of Ce 4+ below the conduction band edge would guarantee a narrow charge transfer between the 4f energy level and the conduction/valence bands of ZnO, with the consequent improved photodegradation activity [88,89,95,96,[111][112][113]. Within this description, the presence of cerium is also believed to reduce the electron-hole pair recombination, where the easy Ce 3+ /Ce 4+ conversion should be the key step, with Ce 4+ acting as an electron scavenger and Ce 3+ as an electron donor.…”
Section: Ce-doped Znomentioning
confidence: 99%
“…Connected to this uncertainty aspect, in the following we will show the different suggested working mechanisms for the Ce-doped ZnO material, critically discussing the various options proposed in the literature. As summarized in Table 2, Ce-modified ZnO has been used for the degradation of a large variety of classical and emerging pollutants in wastewater, including dyes such as methylene blue [84,[89][90][91]95,96,107,110,[116][117][118][119] and rhodamine [88,103,113,120], pharmaceuticals such as ibuprofen and paracetamol [121] and industrial contaminants like bisphenol-A [83,85,87] and acesulfame-K [105]; moreover, the photodegradation of a class of medical diagnostic agents such as X ray contrast agents (ICM) has been also reported [108]. As often happens in manuscripts dealing with photocatalytic applications, the parameters affecting the final photocatalytic ability differ from one investigation to another, making the evaluation and the comparison of the performance of different materials really difficult.…”
Section: Ce-doped Znomentioning
confidence: 99%
“…Yabalak et al reported the 72.86% of TOC removal of Procion Crimson H-EXL dye solution with 100 ppm using 50 mM of H 2 O 2 in SWO method (Kardeşet al 2020). They mentioned that subcritical water medium provides about 8% of TOC removal without using any oxidizing agent.…”
Section: The Effect Of H 2 O 2 Concentration On Color Removal Efficiencymentioning
confidence: 99%