Effect of Fe-N modification on the properties of biochars and their adsorption behavior on tetracycline removal from aqueous solution
文献类型:期刊论文
作者 | Mei, Yanglu; Xu, Jin; Zhang, Yin; Li, Bin; Fan, Shisuo; Xu, Huacheng |
刊名 | BIORESOURCE TECHNOLOGY |
出版日期 | 2021 |
卷号 | 325 |
英文摘要 | Tetracycline (TC) adsorption capacity on pristine biochar was limited. Biochar modification can greatly improve its adsorption amount. In this study, rice straw was mixed with FeCl3 center dot 6H(2)O and urea to prepare a Fe-N modified biochar via a one-pot pyrolysis method at 700 degrees C. Meanwhile, pristine biochar (RSBC), urea modified biochar (N-RSBC), FeCl3 center dot 6H(2)O-modified biochar (Fe-RSBC) were produced as control. More functional groups, more graphited carbon structure, and magnetic components were observed in Fe-N-RSBC. Compared with RSBC, the surface area, total pore and micropore volume of Fe-N-RSBC increased 3.4-fold, 3.0-fold and 2.3-fold, respectively. The maximum capacity of TC adsorption on Fe-N-RSBC reached 156 mg.g(-1), which was 5.4 - fold, 8.2 - fold and 1.9 - fold increase to that of RSBC, N-RSBC, Fe-RSBC, respectively. The mechanism of TC adsorption on Fe-N-RSBC involved pore filling, hydrogen-bond interaction, surface complexation, and pi-pi interaction. Therefore, Fe-N-RSBC can be used as an effective adsorbent for TC removal from aqueous solution. |
源URL | [http://159.226.73.51/handle/332005/20584] |
专题 | 中国科学院南京地理与湖泊研究所 |
推荐引用方式 GB/T 7714 | Mei, Yanglu,Xu, Jin,Zhang, Yin,et al. Effect of Fe-N modification on the properties of biochars and their adsorption behavior on tetracycline removal from aqueous solution[J]. BIORESOURCE TECHNOLOGY,2021,325. |
APA | Mei, Yanglu,Xu, Jin,Zhang, Yin,Li, Bin,Fan, Shisuo,&Xu, Huacheng.(2021).Effect of Fe-N modification on the properties of biochars and their adsorption behavior on tetracycline removal from aqueous solution.BIORESOURCE TECHNOLOGY,325. |
MLA | Mei, Yanglu,et al."Effect of Fe-N modification on the properties of biochars and their adsorption behavior on tetracycline removal from aqueous solution".BIORESOURCE TECHNOLOGY 325(2021). |
入库方式: OAI收割
来源:南京地理与湖泊研究所
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