Fenton-like degradation of Methylene Blue using paper mill sludge-derived magnetically separable heterogeneous catalyst: Characterization and mechanism

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• 作者：Guoqiang Zhou ; Ziwen Chen ; Fei Fang ; Yuefeng He ; Haili Sun ; Huixiang Shi ; ^{11214033@zju.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Paper mill sludge ; Heterogeneous catalyst ; Methylene Blue
• 刊名：Journal of Environmental Sciences
• 出版年：2015
• 出版时间：1 September 2015
• 年：2015
• 卷：35
• 期：Complete
• 页码：20-26
• 全文大小：1390 K

文摘

For the paper industry, the disposal and management of the yielded sludge are a considerable challenge. In our work, the paper mill sludge-derived magnetically separable heterogeneous catalyst (PMS-Fe-380) was prepared easily through a facile synthesis method. The morphology and structure of PMS-Fe-380 were fully characterized by means of X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Brunauer–Emmet–Teller analysis. The catalytic activity of PMS-Fe-380 was evaluated by degradation of Methylene Blue (MB). The reusability and stability of PMS-Fe-380 were evaluated in five repeated runs, which suggested that PMS-Fe-380 manifested excellent stability of catalytic activity. Moreover, leaching tests indicated that the leached iron is negligible (< 0.5 mg/L). This study provides an alternative environmentally friendly reuse method for paper mill sludge and a novel catalyst PMS-Fe-380 that can be considered as a promising heterogeneous Fenton-like catalyst.