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文章摘要
层状双氢氧化物在砷污染水体/土壤修复中的应用研究进展
Progress in Application of Layered Double Hydroxides in Arsenic Contaminated Water/Soil Remediation
  
DOI:
中文关键词: 层状双氢氧化物  改性  吸附  砷污染  水体修复  土壤修复
英文关键词: Layered double hydroxides  Modification  Adsorption  Arsenic contamination  Water remediation  Soil remediation
基金项目:国家自然科学基金资助项目(22166022);甘肃省自然科学基金资助项目(21JR11RA068);甘肃省高校产业支持计划基金资助项目(2020C-38)
作者单位
黄玮婷 兰州交通大学环境与市政工程学院 
白圆 兰州交通大学环境与市政工程学院 
马睿 兰州交通大学环境与市政工程学院 
敬宗显 兰州交通大学环境与市政工程学院 
万馨雯 兰州交通大学环境与市政工程学院 
吴海龙 兰州交通大学环境与市政工程学院 
刘洁 兰州交通大学环境与市政工程学院 
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中文摘要:
      综述了层状双氢氧化物(LDHs)的结构、特性及其在砷污染水体/土壤修复中的应用研究现状,介绍了共沉淀、水热合成、离子交换、溶胶〖CD*2〗凝胶、焙烧等LDHs制备方法,以及表面改性、插层、焙烧复原等改性方法。分析了LDHs吸附除砷的机理和影响因素,以及当前在材料合成、优化和应用过程中存在的不足,提出了形成工业化生产工艺、研发选择性和稳定性更强的复合材料、提升在复杂基体中的抗冲击负荷能力、探讨同构置换对层状结构的影响等后续研究方向。
英文摘要:
      In this paper, the structure and properties of layered double hydroxides(LDHs) and their application in arsenic contaminated water/soil remediation were reviewed. LDHs preparation methods such as co precipitation, hydrothermal synthesis, ion exchange, sol gel and calcination, as well as modification methods such as surface modification, intercalation and calcination restoration were introduced. The mechanism and influencing factors of arsenic removal by LDHs adsorption were analyzed, as well as the shortcomings existing in the process of material synthesis,optimization and application. Subsequent research directions were proposed to form industrial production process, develop composite materials with strong selectivity and stability, improve impact load resistance in complex matrix, and explore influences of isomorphic replacement on layered structure.
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