期刊论文

中文

中国粉体技术

1008-5548

2023

29

01

49-60

10.13732/j.issn.1008-5548.2023.01.006

2017SK2273、2019SK2191:湖南省重点研发计划项目 19K107:湖南省高校创新平台开放基金项目 19C1900:湖南省教育厅科学研究项目

本校为第一机构

以湿地植物美人蕉(MBC)、再力花(ZBC)和旱伞草(HBC)为原材料,采用热裂解法于300、500、700 ℃下制备生物炭,应用全自动元素分析仪、扫描电子显微镜、红外光谱等手段表征分析生物炭理化性质,采用静态吸附法系统研究生物炭对镉的吸附特性。结果表明:制备温度对生物质炭的理化性质、表面形貌和矿物成分有很大影响;中温(500 ℃)、高温(700 ℃)裂解生物炭对镉的吸附性能优于低温(300 ℃)裂解生物炭的,500 ℃裂解生物炭吸附性能最好,对Cd~(2+)吸附容量均值可达96.00 mg·g~(-1),极值可达108.28 mg·g~(-1),且吸附容量从大到小为ZBC、MBC、HBC;500 ℃裂解湿地植物基生物炭对Cd~(2+)的吸附平衡时间为30 ...

The biochar was prepared by thermal decomposition method at 300,500,and 700℃using wetland plants as raw materials including Canna indica L(MBC),Thalia dealbata Fraser(ZBC)and Cyperus involucratus Rottboll(HBC).The physicochemical properties of the biochar were characterized by automatic elemental analyzer,scanning electron microscope and infrared spectroscopy,and the adsorption characteristics of cadmium on the biochar were systematically studied by static adsorp-tion method.The results show that the pyrolysis temperature has a great influence...