Cyclodextrin Polymer-Loaded Micro-Ceramic Balls for Solid-Phase Extraction of Triazole Pesticides from Water

IF 8.2 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Xiaobo Yang, Lingli Yu, Shuqi Chen, Miao-chang Liu, Qian Miao, Hua-yue Wu, Wenxia Gao
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Abstract

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.
环糊精聚合物负载微陶瓷球用于固相萃取水中的三唑类农药
合成了一种柠檬酸交联β-环糊精(β-CD)聚合物,并将其负载在微陶瓷球上,制成固相吸附剂(P-MCB),用于吸附和萃取水中的三唑类农药。研究了 β-CD 聚合物和 P-MCB 在不同温度、不同 pH 值溶液中的稳定性。评估了吸附特性以及动力学、吸附剂用量、农药浓度和温度对吸附容量的影响。结果表明,P-MCB 在 3.5 h 内对 15.98 mg/g 氟曲唑有良好的吸附效果。平衡数据遵循 Freundlich 方程,对氟曲唑和地尼环唑的吸附遵循二阶动力学。P-MCB 对水中三唑类农药的回收率令人满意,即使在第 10 次循环时,回收率仍高达 80.1%。P-MCB 具有良好的稳定性,10 天内的降解率为 0.2% ± 0.08,可以确保提取和回收。
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来源期刊
ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces 工程技术-材料科学:综合
CiteScore
16.00
自引率
6.30%
发文量
4978
审稿时长
1.8 months
期刊介绍: ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.
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β-Cyclodextrin (β-CD)
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