摘要
综述了紫外辐射改性、酸碱改性、负载金属及其氧化物改性、有机物改性等生物炭的改性方法,并针对改性效果和改性机理进行了总结分析。生物炭经过改性,具有比原始生物炭更多的表面官能团,或者更高的比表面积,或者负载于生物炭表面得改性物质能够与目标物反应,进而提高生物炭的吸附性能。最后总结了改性生物炭在土壤改良、水中污染物去除和空气中污染物去除三个方面的应用。
The modification methods of biochar were reviewed, such as ultraviolet radiation modification, acid-base modification, supported metal and its oxides modification, organic modification and so on. And their modification effect and mechanism were summarized and analyzed. After modification, the biochar has more surface functional groups than original biochar, or higher specific surface area, or the modified substance loaded on the surface of biochar can react with the target substance, thereby improving the adsorption performance of biochar. Finally, the application of modified biochar in soil improvement, pollutant removal in water and air were summarized.
作者
孙越
严晓菊
张延
杜薇
鲁金凤
SUN yue;YANXiao-ju;ZHANG Yan;DU Wei;LUJin-feng(College of Hydrology and Water Resources, Hohai University, Jiangsu Nanjing 210098, China;College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China)
出处
《当代化工》
CAS
2019年第8期1700-1703,共4页
Contemporary Chemical Industry
基金
中央高校基本科研业务费专项资金，项目号：2017B10414
国家自然科学基金，项目号：51741807,51878357
关键词
生物炭
改性
水处理
土壤改良
Biochar
Modification
Water treatment
Soil improvement
