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| 高效去除重金属的林产废料基吸附剂研究进展 |
| Research Progress on Efficient Removal of Heavy Metals by Forestry Waste based Adsorbents |
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| DOI： |
| 中文关键词: 林产废料 吸附剂 功能基改性 高效净化 重金属废水 |
| 英文关键词: Forestry wastes Adsorbents Functional group modification Highly efficient purification Heavy metal wastewater |
| 基金项目:国家自然科学基金资助项目（22476094，51708281）；中国博士后基金资助项目（2020M681625）；江苏省博士后科研基金资助项目（2021K091A） |
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| 摘要点击次数: 896 |
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| 中文摘要: |
| 综述了林产废料（FWs）原位改性增强吸附重金属离子的研究进展，归纳了直接改性法、接枝衍生法和负载法3种改性策略的改性原理、去除效果及适用规律，指出碱氧处理、共热解、功能基接枝等方法可增加FWs表面的氧、氮、硫等亲和位点种类和含量；以FWs为基体负载纳米材料，可提升重金属捕获能力且降低纳米材料的释放风险；粉末态、气凝胶颗粒和木膜组件等形式的改性FWs表现出良好的实际应用潜力。提出了未来应针对重金属离子的种类和形态构建配位型或耦合作用型位点、提升FWs基吸附剂的位点载量和利用率，以及关注FWs基吸附剂的应用实体设计和工艺等研究方向。 |
| 英文摘要: |
| This paper reviewed the research progress on in situ modification of forestry wastes（FWs） for enhancing the adsorption of heavy metal ions，and summarized the modification mechanisms，removal effects and applicable rules of the three modification methods， including direct modification，grafting derivation and loading. It was pointed out that alkali oxidation treatment，co pyrolysis and functional group grafting could increase the types and contents of affinity sites of oxygen，nitrogen and sulfur on the surface of FWs. Loading nanomaterials on FWs could enhance the ability to capture heavy metals and reduce the release risk of nanomaterials. Modified FWs in forms of powder，aerogel particles and wood membrane modules demonstrated good potential for practical application. It proposed that future researches should focus on constructing coordination type or coupling type sites based on the species and forms of heavy metal ions，enhancing the loading capacity and utilization rate of the sites in FWs based adsorbents，and paying attention to the 〖GK!87mm〗application oriented design and process of FWs based adsorbents. |
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