<正>采用纳米二氧化钛TiO2对竹炭进行改性，并结合FT-IR、EPR图谱及SEM对其性能和结构进行表征，通过气相色谱法研究了改性竹炭对空气中苯的净化效果。结果表明：TiO2既负载到竹炭孔隙的边沿和表面，又没有堵塞竹炭的特殊孔隙，且改性竹炭的自旋数由8.7×1013增加到8.9×1017。纳米改性竹炭可将空气中的苯污染物降解为无毒、无害的二氧化碳和水，且在紫外灯照射下的降解效果最好；当纳米TiO2质量分数为3％时，改性竹炭降解苯12 h的净化率可达93.50％。

More and more attentions have heen paid by some scientists and even the whole society to blue algae blooming and drinking water pollution caused by water body eutrophication in Taihu Lake. At present, ecological forest shelterhehs surrounding Taihu Lake watershed having been established as an important ecological restoration program. In this paper, aulhors have analyzed the main causes of water quality decline and non-point pollutant sources. Some research progress has beers sommarized about the structure and function of riparian ecosystems, including the mechaoisms for the shelterbehs to coutrol and alleviate agricultural non-point pollutants and factors to influence their ecologieal effects. Eurthermore. sonw key methods and techniques have been applied in the classification of ripariaa ecosystem types, functional zones and site conditions, the appropriate width of riparian shelterbelts and the selectiou of plant species and their spacial allocation. Finally, some suggestions have also been given on how to establish available ecological measurements and economic policies as a reference for the construction and sustainable management of Taihu riparian shelterbelts in future.