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发明授权
CN105854798B 生物炭的制备方法及生物炭负载吡虫啉的方法 有权 转让

生物炭的制备方法及生物炭负载吡虫啉的方法
摘要：
本发明公开生物炭的制备方法及生物炭负载吡虫啉的方法，生物炭的制备方法，包括如下步骤：(1‑1)玉米秸秆的预处理；(1‑2)生物炭的制备：将预处理后的玉米秸秆进行无氧炭化。利用上述制备方法制得的生物炭进行生物炭负载吡虫啉的方法，包括如下步骤：(2‑1)生物炭样品的酸处理；(2‑2)生物炭样品的粒径处理；(2‑3)采用超生载药方法或回流载药方法将吡虫啉负载在生物炭上；超声载药时的超声时间为1‑10h，溶剂为二氯甲烷，吡虫啉浓度为30‑50mg/mL；回流载药时的溶剂为二氯甲烷，吡虫啉浓度为30‑50mg/mL，温度为30‑60℃，回流时间为1‑60h。本发明生物炭的制备工艺简单、价格低廉，能够负载吡虫啉且在一定条件下可以释放吡虫啉。
摘要（英）：

The invention discloses a preparing method for biochar and a method for loading imidacloprid on biochar. The preparing method for biochar includes the following steps of pretreating corn straw; preparing the biochar, wherein the pretreated corn straw is anaerobically carbonized. The method for oading imidacloprid on the biochar prepared through the preparing method includes the following steps of acid treating a biochar sample; carrying out particle size treatment on the biochar sample; loading imidacloprid on the biochar through an ultrasonic chemical loading method or a reflux chemical loading method, wherein the ultrasonic time of ultrasonic chemical loading is 1-10 h, dichloromethane serves as solvent, and the concentration of imidacloprid is 30-50 mg/mL; dichloromethane serves as solvent during reflux chemical loading, the concentration of imidacloprid is 30-50 mg/mL, the temperature is 30-60 DEG C, and the reflux time is 1-60 h. The biochar is simple in preparation technology, low in price and capable of loading imidacloprid and release imidacloprid under a certain condition.

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