Catalytic ozonation of 4-chlorophenol and 4-phenolsulfonic acid by CeO2 films

被引：17
作者：
Guzman, Iveete C. [1 ]
Rodriguez, Julia L. [1 ]
Poznyak, T. [1 ]
Chairez, Isaac [2 ]
Hernandez, Isaias [3 ]
Hernandez, Roberto T. [3 ]
机构：
[1] Inst Politecn Nacl, Lab Ing Quim Ambiental, ESIQIE, Mexico City 07738, DF, Mexico
[2] Inst Politecn Nacl, Dept Bioproc, UPIBI, Mexico City 07340, DF, Mexico
[3] Univ Autonoma Metropolitana Azcapotzalco, Ciencias Basicas & Ingn, Av San Pablo 180, Mexico City 02200, DF, Mexico
来源：
CATALYSIS COMMUNICATIONS | 2020年 / 133卷
关键词：
Phenolic compounds; Cerium oxide; Film; Ozonation; THIN-FILMS; ACTIVATED CARBON; CERIUM OXIDATION; DEGRADATION; OZONE; NANOPARTICLES; PERSULFATE; DEPOSITION; COMPOSITE; WATER;
D O I：
10.1016/j.catcom.2019.105827
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ceria films (CeO2(f)) were deposited on glass substrate by a spray pyrolysis method. The catalytic oxidation performance of CeO2(f) was evaluated in the removal of 4-chlorophenol (4-CPh) and 4-phenolsulfonic acid (4-SPh). The catalytic oxidation reactions were carried out in water with ozone as an oxidant agent. Conventional and catalytic ozonation achieved complete removal of both compounds. Furthermore, TOC results showed higher catalytic activity with six CeO2(f) films in comparison with conventional ozonation after 120 min for the oxidation of both 4-CPh and 4-SPh. After five consecutive reuses of CeO2(f), the similar TOC removal for 4-CPh demonstrated the ceria films stability.
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页数：5
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