文献类型: 外文期刊
作者: Yu, Zhongpu 1 ; Ji, Licheng 1 ; Zuo, Yihan 1 ; Zhang, Feiyan 1 ; Wei, Chengcheng 1 ; Jiang, Fei 1 ; Fu, Xianju 1 ; Wu, Wenge 2 ; Du, Jian 3 ; Chen, Chengxia 4 ; Li, Feiyue 1 ;
作者机构: 1.Anhui Sci & Technol Univ, Coll Resources & Environm Sci, Fengyang 233010, Peoples R China
2.Anhui Acad Agr Sci, Rice Res Inst, Hefei 230031, Peoples R China
3.Anhui Sunshine Pharmaceut Co Ltd, Lixin 236707, Peoples R China
4.Anhui Zhenhao Environm Protect Technol Co Ltd, Fengyang 233010, Peoples R China
关键词: Mulberry biochar; Ball milling; Tetracycline hydrochloride; Adsorption
期刊名称:WATER AIR AND SOIL POLLUTION ( 影响因子:2.9; 五年影响因子:2.9 )
ISSN: 0049-6979
年卷期: 2023 年 234 卷 4 期
页码:
收录情况: SCI
摘要: The recovery and utilization of Chinese medicine residue are increasingly becoming a concern. In this study, mulberry waste (a typical Chinese medicine residue) was selected as a raw material for biochar production at different pyrolysis temperatures (300, 500, and 700 degrees C, representing low, median, and high temperatures). This biochar was then modified by ball-milled technology a different ball-milled time of 1 to 6 h to obtain a good modification biochar for tetracycline hydrochloride (TC) adsorption. The results showed that the best modification biochar, produced by ball milling biochar (derived at 500 degrees C) for 3 h, referred to as QMB500. Compared to the pristine biochar (MB500), the QMB500 had higher surface area (increased by 14 times) and larger pore volume (increased by 8 times); besides, the oxygen-containing functional groups of QMB500 was richer than that of MB500, evidenced by Fourier transform infrared spectroscopy analysis. Due to these improved properties, the TC maximum adsorption capacity (modeled via Langmuir isotherms) of QMB500 increased by 4.2 times (103.7 mg.g(-1)). In addition, TC adsorption kinetic of modified QMB500 was well fitted by the pseudo-second-order model, and the TC adsorption is spontaneous; heat absorption and disorder increase process. TC adsorption greater capacity was at pH = 4 and ion strengths = 0.01 mol.L-1 NaNO3. These results indicate that mulberry biochar modified by ball-milled treatment is promising in environmental applications that require TC removal.
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