Synthesis, characterization and application of CuO-CeO2 nanocatalysts in wet air oxidation of industrial wastewater

被引：18
|
作者：
Anushree [1 ]
Kumar, Satish [2 ]
Sharma, Chhaya [2 ]
机构：
[1] Indian Inst Petr, Dehra Dun 248005, Uttar Pradesh, India
[2] Indian Inst Technol Roorkee, Roorkee 247667, Uttar Pradesh, India
来源：
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2017年 / 5卷 / 04期
关键词：
Nanocatalysts; CuO-CeO2; Porous; Oxygen vacancy; Catalysis; Wet air oxidation; OXYGEN STORAGE CAPACITY; CO OXIDATION; MIXED OXIDES; CATALYSTS; METAL; CEO2; PULP; GAS; XPS; DEGRADATION;
D O I：
10.1016/j.jece.2017.07.061
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Today, the removal of persistent organic pollutants from industrial wastewater stands a major challenge. Here we report the catalytic wet air oxidation of paper industry wastewater using CuO-CeO2 nanocatalysts. The catalysts were prepared by co-precipitation method without using any surfactant. The catalysts were characterized by XRD, FTIR, XPS, Raman, N-2-sorption, FE-SEM, TEM and EDX techniques. Characterization results revealed the formation of porous CuO-CeO2 nanocatalysts with high surface area, pore volume and oxygen vacancies. Interaction between copper and cerium greatly enhanced the catalyst activity, and the maximum removal of COD (67%), color (81%), AOX (61%), TOC (64%) and chlorophenolics (66%) was achieved with Ce40Cu60 nanocatalyst. The degradation of non-biodegradable compounds resulted in increased biodegradability index.
引用
收藏
页码：3914 / 3921
页数：8
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