文章信息/Info

Title:

Preparation and Modification of Wood Membrane and Its Application Progress in Membrane Filtration

文章編號:

1674-3962(2023)01-0054-10

作者:

孫怡然1; 馬肖雨1; 于飛2; 馬杰1; 3

（1. 同濟大學 環境功能材料研究中心，上海 200092）（2. 上海海洋大學海洋生態與環境學院，上海 201306）（3. 上海污染控制與生態安全研究院，上海 200092）

Author(s):

SUN Yiran1;  MA Xiaoyu1;  YU Fei2;  MA Jie1; 3

(1. Research Center for Environmental Functional Materials, Tongji University, Shanghai 200092, China) (2. College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China) (3. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China)

關鍵詞:

木質膜; 制備; 改性; 過濾; 分離

Keywords:

wood membrane;  preparation;  modification;  filtration;  separation

分類號:

X703

DOI:

10.7502/j.issn.1674-3962.202103039

文獻標志碼:

A

摘要:

木材獨特的三維多孔結構可有效截留水中的多數雜質，并且資源豐富、價格低廉，是一種理想的膜過濾材料；對天然木材進行改性可進一步提高其過濾效率、拓寬應用范圍。上述特性使木質膜在同類材料中具有明顯的競爭優勢，因此受到了膜過濾領域的廣泛關注。然而目前尚未有關于木質膜的制備和應用的系統綜述。從木材的結構出發，對木材的輸水結構和化學組分進行詳細介紹，并著重分析木材的結構組分特性與其膜過濾性能的關系，之后分類總結木質膜的制備與改性方法（脫木素、金屬粒子修飾、醚化/酯化、碳化），并從除菌、重金屬離子吸附與有機污染物去除3個方面總結了木質膜在膜分離領域的應用，最后對木質膜在膜過濾領域的應用前景進行分析和展望。

Abstract:

Wood has unique three-dimensional porous structure that allows it to effectively reject most impurities in water. Coupled with its low cost and extensive sources, wood has been an ideal membrane filtration material. Moreover, modification of natural wood can greatly improve its filtration efficiency. The above properties endowed wood with obvious competitive advantages among similar materials, and attracted wide attention in membrane filtration field. However, no literature has systematically reviewed the preparation methods of wood membranes and their application progress in membrane filtration. Therefore, based on the structure of wood, this article introduced the water transport structure and chemical composition of wood, and analyzed the relationship between the structure characteristics of wood and its membrane filtration performance. The four modification methods of wood membrane, namely delignification treatment, metal nanoparticles decoration, etherification/esterification modification and carbonization modification were summarized. The application of wood membrane, i.e., bacteria removal, adsorption of heavy metals, and removal of organic pollutants, in membrane separation was introduced. Finally, the prospect of wood membrane in the field of membrane filtration was analyzed.