摘要
制备了木醋液改性生物炭粉负载腐植酸(BC-HA/WV)新型土壤修复材料,研究了其组成、施用量和老化时间等因素对萘污染修复效果的影响。结果表明,木醋液改性生物炭粉负载腐植酸对萘的固化率达到68.63%,比生物炭粉负载腐植酸提高了18.92%,修复材料最佳组成为生物炭粉与腐植酸和木醋液质量比为1.5∶1∶1;1 kg污染土壤的最佳施用量为25 g;固化率与老化时间成正比,萘与土壤接触的时间越长,其在土壤中迁移的效率越低。经FT-IR、UV、XPS、GC-MS等分析发现木醋液能促进修复材料与萘间形成分子间氢键,增强修复材料的固化能力。
A new soil remediation material with humic acid(BC-HA/WV)loaded with wood vinegar modified biochar was prepared,and the effects of its composition,dosage and aging time on the remediation of naphthalene were studied.The results showed that the curing rate of naphthalene in wood vinegar modified biochar powder loaded with humic acid reached 68.63%,which was 18.92%higher than that in biochar powder loaded with humic acid.The optimal application amount of 1 kg contaminated soil was 25 g.The curing rate was in direct proportion to the aging time,and the longer the naphthalene was in contact with the soil,the lower the efficiency of its migration in the soil.Through analysis of FT-IR,UV,XPS,GC-MS and so on,it was found that wood vinegar solution could promote the formation of intermolecular hydrogen bond between repair materials and naphthalene,and enhance the curing ability of repair materials.
作者
朱军峰
高薇春
季勇
王晶
葛磊
牛育华
ZHU Junfeng;GAO Weichun;JI Yong;WANG Jing;GE Lei;NIU Yuhua(Shaanxi Key Laboratory of Light Chemical Assistant Chemistry and Technology, College of Chemistry andChemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China;KeyLaboratory of Degradation and Unused Land Reclamation Project, Ministry of Land and Resources,Xi'an 710075, China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2020年第12期12161-12166,共6页
Journal of Functional Materials
基金
西安市科技创新引导资助项目(201805023YD1CG7(3))
自然资源部退化及未利用土地整治工程重点实验室开放基金重点资助项目(SXDJ2018-01)
省级大学生创新创业训练计划资助项目(S201910708065)。
关键词
土壤修复材料
腐植酸
木醋液
吸附
萘污染
soil remediation material
humic acid
wood vinegar
adsorption
naphthalene pollution
