The invention relates to a preparation method of a compound rare earth light conversion agent for agricultural film, which belongs to the technical field of agricultural materials. The invention produces amino and carboxyl functionalized carbon points by the reaction of silk water and heat, and uses its surface polyamino and carboxyl groups to chelate rare earth ions and form a multi luminescent center to prepare the characteristic fluorescence emission with blue fluorescence emission and rare earth complex, and a wide application of energy resonance transfer between them is widely used. A high efficiency light transfer agent with a comprehensive inorganic organic compound type and a red and blue light composite type. At the same time, the invention uses methyl benzoate three azoles as the first ligand, adjacent phenanthroline as CO ligand and surfactant sixteen alkyl three methyl bromide, effectively enhancing the fluorescence of rare earth complexes, which can make the ultraviolet part of the sun light converted into agriculture. The red and blue light with better matching of the maximum absorption peak of photosynthesis has played a good role in promoting plant growth in plastic greenhouse.
【技术实现步骤摘要】
一种农膜用复合型稀土转光剂的制备方法
本专利技术涉及一种农膜用复合型稀土转光剂的制备方法,属于农业材料
技术介绍
在稀土功能材料的发展中,尤其以稀土发光材料格外引人注目。稀土因其特殊的电子层结构,而具有一般元素所无法比拟的光谱性质,稀土发光几乎覆盖了整个固体发光的范畴,只要谈到发光,几乎离不开稀土,稀土元素的原子具有未充满的受到外界屏蔽的4f5d电子组态,因此有丰富的电子能级和长寿命激发态,能级跃迁通道多达20余万个,可以产生多种多样的辐射吸收和发射,构成广泛的发光和激光材料。随着稀土分离、提纯技术的进步,以及相关技术的促进,稀土发光材料的研究和应用得到显著的发展。发光是稀土化合物光、电、磁三大功能中最突出的功能,受到人们极大的关注。稀土应用研究中,发光材料占主要地位。稀土发光材料具有许多优点:发光谱带窄,色纯度高,色彩鲜艳;光吸收能力强,转换效率高;发射波长分布区域宽;荧光寿命从纳米跨越到毫米达6个数量级;物理和化学性能稳定,耐高温,可承受大功率电子束、高能辐射和强紫外光的作用。正是这些优异的性能,使稀土化合物成为探寻高新技术材料的主要研究对象。目前, ...
【技术保护点】
1.一种农膜用复合型稀土转光剂的制备方法,其特征在于,具体制备步骤为:(1)将蚕丝水洗风干与去离子水混合装入水热反应釜中反应,冷却至室温后过滤,滤液透析除杂得碳点溶液;(2)向碳点溶液中滴加稀土硝酸盐乙醇溶液,混合均匀得悬浮液;(3)取甲基苯骈三氮唑、邻菲罗啉、十六烷基三甲基溴化铵,加入无水乙醇中搅拌20~30min,再用氢氧化钠乙醇溶液调节pH至6.5~7.0,得配体混合液;(4)向悬浮液中滴加配体混合液,混合均匀后加入氢氧化钠乙醇溶液调节pH至6.5~7.0,并加热至60~70℃,保温反应3~5h,再静置10~12h后过滤、醇洗、干燥,得农膜用复合型稀土转光剂。
【技术特征摘要】
1.一种农膜用复合型稀土转光剂的制备方法,其特征在于,具体制备步骤为:(1)将蚕丝水洗风干与去离子水混合装入水热反应釜中反应,冷却至室温后过滤,滤液透析除杂得碳点溶液;(2)向碳点溶液中滴加稀土硝酸盐乙醇溶液,混合均匀得悬浮液;(3)取甲基苯骈三氮唑、邻菲罗啉、十六烷基三甲基溴化铵,加入无水乙醇中搅拌20~30min,再用氢氧化钠乙醇溶液调节pH至6.5~7.0,得配体混合液;(4)向悬浮液中滴加配体混合液,混合均匀后加入氢氧化钠乙醇溶液调节pH至6.5~7.0,并加热至60~70℃,保温反应3~5h,再静置10~12h后过滤、醇洗、干燥,得农膜用复合型稀土转光剂。2.如权利要求1所述的一种农膜用复合型稀土转光剂的制备方法,其特征在于,步骤(1)所述蚕丝与去离...
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