您好，欢迎访问浙江省农业科学院 机构知识库！
浙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Green synthesis of Fe3O4@SiO2@Salg particles for organophosphorus pesticides removal: Mechanisms, biosafety, and application

文献类型： 外文期刊

作者： Liu, Zhenzhen 1 ; Zhao, Huiyu 1 ; Wang, Jiao 1 ; Wang, Zhiwei 1 ; Di, Shanshan 1 ; Xu, Hao 1 ; Wang, Qiang 1 ; Wang, Xinquan 1 ; Qi, Peipei 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China

2.Agr Minist Key Lab Pesticide Residue Detect, Hangzhou 310021, Peoples R China

3.Key Lab Detect Pesticide Residues & Control Zhejia, Hangzhou 310021, Peoples R China

关键词： Magnetic particles; Organophosphorus pesticides; Adsorption; Biosafety; Water treatment

期刊名称：CHEMOSPHERE （ 影响因子：8.8； 五年影响因子：8.3 ）

ISSN： 0045-6535

年卷期： 2023 年 332 卷

页码：

收录情况： SCI

摘要： A biosafe magnetic Fe3O4@SiO2@Salg (GMS) was successfully developed via a simple and economic method. Fe3O4@SiO2 particles were selected as the magnetic core, and they directly interacted with sodium alginate, thus mitigating the use of cross-linking agents. The microstructure, properties, and formation mechanism of GMS were examined using FE-SEM, TEM, VSM, TGA, zeta potential, and FT-IR. The as-developed GMS was used as a desirable adsorbent to remove organophosphorus pesticides (OPPs) from water bodies, and the influence of different factors on the removal efficiencies of OPPs was investigated. Optimal preparation conditions were determined, and the excellent removal efficiencies of the 18 OPPs were achieved in this study (80.5%-100% for tap, river, and seawater). After the GMS was recycled eight times, the removal efficiencies of 18 OPPs were maintained at >80%. Adsorption kinetics and isotherm models showed that the adsorption process was accurately fitted with the Langmuir isotherm and pseudo-second-order models. The values of Delta G, Delta H, and Delta S were negative, indicating that the OPPs were adsorbed on the GMS spontaneously via an exothermal reaction, and chemisorption was the dominant adsorption mechanism. Overall, the as-developed GMS was biosafe as revealed by cytotoxicity experiments. GMS had good environmental security, stability, and reusability, and it exhibited excellent potential for removing OPPs from aqueous solutions without causing secondary pollution.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：浙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台