期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 34, 页码 30703-30712出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b06396
关键词
electro-Fenton; Fe-Ce0.75Zr0.25O2/CF; polyacrylamide; degradation; hydroxyl radical
资金
- National Natural Science Foundation of China [21722702, 21874099]
- National Science and Technology Major Project of the Ministry of Science and Technology of China [2016ZX05058-003-004]
- Tianjin Commission of Science and Technology as key technologies RD projects [15JCZDJC41200, 16YEXTSF00440, 16ZXGTSF00020]
- Innovation and Entrepreneurship Training Program of Tianjin for College Students [201910056072]
- Ministry of Public Security of the PRC [2016JSYJDO4]
Polyacrylamide (PAM) in environmental water has become a major problem in water pollution management due to its high molecular mass, corrosion resistance, high viscosity, and nonabsorption by soil. The composite of Fe-doped Ce0.75Zr0.25O2 solid solution (Fe-Ce0.75Zr0.25O2) loaded on carbon felt (CF) was fabricated by a hydrothermal synthesis method, which was used as the cathode in a heterogeneous electro-Fenton system for the degradation of PAM. It showed that the degradation efficiency of PAM by the Fe-Ce0.75Zr0.25O2/CF cathode was 86% after 120 min and the molecular mass of PAM decreased by more than 90% after 300 min. Total organic carbon removal reached 78.86% in the presence of Fe-Ce0.75Zr0.25O2/CF, while the value was only 38.01% in the absence of Fe-Ce0.75Zr0.25O2. Further studies showed that the breaking of the chain begins with the amide bond, and then, the carbon chain was cracked into a short alkyl chain. As degradation progressed, both the complex viscosity and elasticity modulus of PAM solutions decreased nearly 50% at 300 min. It indicated that center dot OH were the most significant active species for the degradation of PAM. This novel Fe-Ce0.75Zr0.25O2/CF composite is an efficient and promising electrode for the removal of PAM in wastewater.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据