Preparation of heterogeneous Fenton catalyst γ-Cu-Ce-Al2O3 and the evaluation on degradation of phenol

Li, Mei; Gao, Xinyu; Liu, Heming; Wang, Hongbo; Zhao, Qian; Wang, Ning

doi:10.1007/s11356-020-08648-w

Cited by 11 publications

(1 citation statement)

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“…To further improve the catalytic effect, γ-Al 2 O 3 has been used as a carrier to load some metal oxides, and its catalytic effect on ozone has been studied [ 11 , 12 ]. Among these, the active components generally include transition metals [ 13 ], precious metals [ 14 ], rare earth elements [ 15 ], and some metal oxides [ 16 ]. Certain precious metals have been shown to have the best effect, but it has also been found that the transition metals (Mn, Fe, Cu and Zn) [ 17 ], although not producing the best effect, still produce a good effect compared with many other metals, and transition metals are easily obtained [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Magnetic Composites (γ-Al2O3/TiO2/γ-Fe2O3) as Ozone Catalysts in Wastewater Treatment

Wang¹,

Zhou²,

Xu³

et al. 2022

Materials

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Using municipal sewage as a source of reclaimed water is an important way to alleviate the shortage of water resources. At present, advanced oxidation technology (AOPs), represented by ozone oxidation, is widely used in wastewater treatment. In this study, γ-Al2O3, a low-cost traditional ozone catalyst, was selected as the matrix. By modifying magnetic γ-Fe2O3 with a titanate coupling agent, in situ deposition, and calcination, the final formation of a γ-Al2O3/TiO2/γ-Fe2O3 micrometer ozone catalyst was achieved. A variety of material characterization methods were used to demonstrate that the required material was successfully prepared. The catalyst powder particles have strong magnetic properties, form aggregates easily, and have good precipitation and separation properties. Subsequently, ibuprofen was used as the degradation substrate to investigate the ozone catalytic performance of the prepared catalyst, and this proved that it had good ozone catalytic activity. The degradation process was also analyzed. The results showed that in the ozone system, some of the ibuprofen molecules will be oxidized to form 1,4-propanal phenylacetic acid, which is then further oxidized to form 1,4-acetaldehyde benzoic acid and p-phenylacetaldehyde. Finally, the prepared catalyst was applied to the actual wastewater treatment process, and it also had good catalytic performance in this context. GC–MS detection of the water samples after treatment showed that the types of organic matter in the water were significantly reduced, among which nine pollutants with high content, such as bisphenol A and sulfamethoxazole, were not detected after treatment.

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