摘要
为了提高肥料的利用率,本文研究了共沉淀法制备介孔二氧化硅纳米粒子(MSN)作为载体材料,以异硫氰酸荧光素(FITC)为目标物质代替化学肥料,以壳聚糖(CS)为介孔封堵物,探究纳米粒子的控释机理。结果表明,接枝前MSN的缓释率为52.62%,接枝CS后,缓释率降低到了34.2%,明显提高了缓释效果,为智能化纳米控释肥的研究提供理论依据。
In order to improve fertilizers utilization, in this paper, mesoporous silica nanoparticles(MSN) prepared by coprecipitation method was studied as a carrier material, flurescein isothiocyanate(FITC) was used as the target material instead of chemical fertilizer, the mechanism of controlled release of nanoparticles was investigated by using CS as a mesoporous plug. The results showed that the sustained release rate of MSN before grafting was 52.62 %, and after CS grafting, the sustained release rate decreased to 34.2 %, which significantly improved the sustained release effect. Providing theoretical basis for the research of intelligent nano controlled release fertilizer.
作者
王超
杨子明
周闯
何祖宇
李普旺
Wang Chao;Yang Ziming;Zhou Chuang;He Zuyu;Li Puwang(Agricultural Products Processing Research Institute,Chinese Academy of Tropical Agricultural Sciences,Zhanjiang524001,China)
出处
《广东化工》
CAS
2018年第21期138-140,共3页
Guangdong Chemical Industry
基金
中国热带农业科学院基本科研业务费(项目编号:1630122018007)
关键词
介孔二氧化硅
控释肥
壳聚糖
mesoporous silica
controlled release fertilize
chitosan
