期刊论文

Hydrothermal preparation of durian biochar and its application on removal of tetracycline from aqueous solution

中文

环境化学

Environmental Chemistry

0254-6108

2016

35

7

1452-1460

10.7524/j.issn.0254-6108.2016.07.2016032001

湖南农业大学大学生创新实验项目(XCX14096),国家自然科学青年基金(41401260),湖南省自然科学基金(13JJ04068),湖南省科技厅重点项目(2015NK3015),湖南农业大学1515人才基金资助.Supported by the Special Fund for Innovative Experimental Project of College Students (XCX14096),the National Natural Science Youth Foundation Project of China(41401260),Project of Natural Science Foundation of Hunan Province(13JJ04068),Key Project of Science and Technology Department of Hunan Province(2015NK3015),Hunan Agricultural University 1515 talent fund.

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本文利用榴莲壳和氯化高铁水热法制备具有磁性的榴莲碳,利用XRD、FTIR 和SEM 对榴莲碳进行结构表征,并研究榴莲碳对水体中四环素的吸附性能,以及水热反应温度、溶液pH 和盐浓度等对榴莲碳吸附去除四环素性能的影响.结果表明,在水热温度170 ℃加热10 h 条件下制备的榴莲碳D170具有明显的纳米片状和颗粒状结构,随着温度的升高,制备的榴莲碳XRD 衍射峰增强,形成的结晶更好.吸附实验表明,随着水热制备温度的升高,制备的榴莲碳对四环素的吸附去除率呈降低趋势.榴莲碳对四环素的吸附热力学模型拟合表明: D170、D180和D200对水体中四环素的最大吸附容量分别为153. 97 mg·g~(-1)、80. 26 mg·g~(-1)和3...

Magnetic durian biochar was prepared with durian shells and iron chloride using hydrothermal method,and its surface properties were characterized by XRD,FTIR and SEM. The removal efficiency of tetracycline (TC)under different reaction conditions were than studied. The hydrothermal temperature,pH,adsorption kinetics and adsorption isothermal,salt efffect on the removal of TC in aqueous solutions were investivagated in detail. The results showed that the durian biochar prepared at hydrothermal temperature of 170 ℃ (D170)possessed nano flake and ...