吸附
化学
吸附剂
环糊精
萃取(化学)
聚合物
弗伦德利希方程
动力学
固相萃取
核化学
杀虫剂
陶瓷
色谱法
有机化学
农学
生物
物理
量子力学
作者
Xiupei Yang,Lingli Yu,Shuqi Chen,Miaochang Liu,Qian Miao,Huayue Wu,Wenxia Gao
摘要
A citric acid cross-linked β-cyclodextrin (β-CD) polymer was synthesized and loaded on micro-ceramic balls to fabricate the solid-phase adsorbents (P-MCB) for adsorption and extraction of triazole pesticides from water. The stability of β-CD polymer and P-MCB was investigated in solutions with different pH values at different temperatures. The adsorption properties and the influence of kinetics, sorbent amount, pesticide concentration, and temperature on the adsorption capacity were evaluated. The results showed P-MCB had favorable adsorption of 15.98 mg/g flutriafol in 3.5 h. The equilibrium data followed the Freundlich equation, and the adsorption of flutriafol and diniconazole followed the second-order kinetics. The recovery rate of P-MCB for triazole pesticides in water was satisfactory, and the recovery rate was still 80.1%, even at the 10th cycle. The P-MCB had good stability, with a degradation rate of 0.2% ± 0.08 within 10 days, which could ensure extraction and recycling.
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