利用基于生物炭的 CuFeO 复合材料激活过硫酸盐降解四环素。
Degradation of tetracycline by activating persulfate using biochar-based CuFeO composite.
机构信息
School of Environmental and Safety Engineering, Changzhou University, Jiangsu, 213164, China.
Department of Ecosystem Science and Management and Materials Research Institute, 204 Energy and the Environment Laboratory, The Pennsylvania State University, University Park, State College, PA, 16802, USA.
出版信息
Environ Sci Pollut Res Int. 2022 Sep;29(44):67003-67013. doi: 10.1007/s11356-022-20500-x. Epub 2022 May 5.
Biochar derived from Lentinus edodes (LBC) and CuFeO (CuFeO@LBC) composites were prepared by the hydrothermal method, and were applied to activate persulfate (PDS) for degrading tetracycline (TC) in a wide pH range. The CuFeO@LBC composites were characterized by XRD, FTIR, SEM, and XPS. LBC-derived biochars greatly reduced the aggregation of CuFeO particles and enhanced the catalytic performance of CuFeO. CuFeO@LBC catalyst could remove 85% of tetracycline within 100 min under visible light. In addition, the removal rate of TC reached 76% after five cycles, indicating that the composite had good stability and reusability. Simple classical quenching experiments suggested that the degradation of TC could be mainly attributed to •OH and •S [Formula: see text].
由香菇（LBC）和 CuFeO（CuFeO@LBC）复合材料制备的生物炭是通过水热法制备的，并用于在较宽的 pH 范围内激活过硫酸盐（PDS）来降解四环素（TC）。通过 XRD、FTIR、SEM 和 XPS 对 CuFeO@LBC 复合材料进行了表征。LBC 衍生的生物炭大大减少了 CuFeO 颗粒的聚集，提高了 CuFeO 的催化性能。在可见光下，CuFeO@LBC 催化剂在 100 分钟内可去除 85%的四环素。此外，TC 的去除率在五次循环后达到 76%，表明该复合材料具有良好的稳定性和可重复使用性。简单的经典猝灭实验表明，TC 的降解主要归因于•OH 和•S[公式：见文本]。
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