Synthesis of CuO/g-C3N4 Composite with High Anti-Interference Ability for Enhanced Fenton-Like Catalysis |
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Authors: | Xiao-Hui Zhang Xiao-Yu Ye Hao-Yu Zhou Guo-Zhi Han |
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Institution: | College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816 P. R. China |
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Abstract: | The combination of semiconductors and transition metal compounds for Fenton-like application has been widely reported. However, there are still some problems that can be further studied such as the optimization of metal species and in-depth research of mechanism. In this paper, using melamine and copper acetate as raw materials, a kind of composite of copper oxide and graphitic carbon nitride (CuO/g-C3N4) is synthesized by a facile hydrothermal method. The synthetic conditions such as type of transition metal salt and ratio of raw material are further optimized. With the presence of H2O2, the CuO/g-C3N4 composite shows exceptional broad-spectrum Fenton-like catalytic performance against the organic dyes in aqueous solution within a wide pH range, and the highest degradation rate of organic dyes can reach 99% within 10 min. After eight times of recycling, the catalytic activity of the composite can still remain more than 85%. More importantly, the CuO/g-C3N4 composite presented excellent anti-interference ability toward heavy metal ions and complex pollutants. Finally, the enhanced Fenton-like catalytic mechanism is illustrated in detail. |
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Keywords: | catalysis CuO/g-C3N4 degradation Fenton-like organic dyes |
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