Porphyrin based porous organic polymer modified with Fe3O4 nanoparticles as an efficient adsorbent for the enrichment of benzoylurea insecticides

Abstract

Porphyrin-based porous organic polymers (P-POPs) are amorphous polymers linked by strong covalent bonds between the porphyrin subunits that act as building blocks. The authors describe a magnetic P-POP that possesses high surface area, a highly porous structure, and strong magnetism. The MP-POP was employed as a magnetic sorbent for the extraction of benzoylurea insecticides from cucumber and tomato samples prior to their determination by HPLC. The sorbent has a typical sorption capacity of 1.90-2.00 mg∙g. The method exhibits a good linear range (0.8-160 ng·g), low limits of detection (0.08-0.2 ng·g), and high method recoveries (81.8-103.5%) for cucumber and tomato samples. The MP-POP has different adsorption capabilities for the benzoylurea insecticides, phenylurea herbicides and phenols compounds, and the adsorption mechanism is found to be based on π-stacking, hydrogen-bonding, and hydrophobic interactions. Graphical abstract A novel magnetic porphyrin-based porous organic polymer was fabricated and used as the adsorbent for the efficient extraction of benzoylurea insecticides.

Magnetic Solid Phase Extraction Based on Nanostructured Magnetic Porous Porphyrin Organic Polymer for Simultaneous Extraction and Preconcentration of Neonicotinoid Insecticides From Surface Water

“…Recently, literature has suggested that porous adsorbents such as porous organic polymers (POPs) have received significant attention in different scientific field. They have been applied as novel materials in luminescent sensing Pan et al, 2019) catalysis (Kaur et al, 2011;Zhang and Riduan, 2012;Das et al, 2019;Li et al, 2020), gas storage (Wood et al, 2008;Das et al, 2019), electrochemical sensing (Vilian et al, 2018), drug delivery, and adsorption and SPE (Huang et al, 2017;Wang et al, 2017Wang et al, , 2018aXiong et al, 2019;Li et al, 2020). These materials are prepared by combining various monomer units using different types of chemical reactions (Li et al, 2020).…”

“…These materials are prepared by combining various monomer units using different types of chemical reactions (Li et al, 2020). Depending on the type of chemical reaction, a wide range of structural frameworks are achieved (Wood et al, 2008;Wang et al, 2017Wang et al, , 2018aLi et al, 2020). Structurally, POPs poses strong covalent bonds that leads to attractive features such as high mechanical, chemical and thermal stabilities (Wang et al, 2017(Wang et al, , 2018a.…”

“…Depending on the type of chemical reaction, a wide range of structural frameworks are achieved (Wood et al, 2008;Wang et al, 2017Wang et al, , 2018aLi et al, 2020). Structurally, POPs poses strong covalent bonds that leads to attractive features such as high mechanical, chemical and thermal stabilities (Wang et al, 2017(Wang et al, , 2018a. Among different types of porous materials, the application of porphyrin based POPs (PPOPs) as adsorbents is increasing due to their large macrocyclic cavity, surface areas, remarkable stability and excellent affinity toward organic pollutants (Wang et al, 2017(Wang et al, , 2018a.…”

Preparation of a magnetic graphene/polydopamine nanocomposite for magnetic dispersive solid-phase extraction of benzoylurea insecticides in environmental water samples

“…Benzoylurea insecticides (BUIs), as a class of insect growth regulators, have been widely used to control insects because of their capability to interfere with chitin synthesis and inhibit the molting process of target pests 1 , 2 . Diflubenzuron was the prototype of all BUIs which was firstly discovered in the early 1970s, and 14 more BUIs were prepared and commercialized in the following 40 years of development 3 , 4 .…”

“…An alternative strategy to address this inefficiency in DSPE analysis is to magnetize the sorbent and develop a magnetic DSPE (MDSPE) technique. Recently, several materials have been prepared for the preparing of magnetic sorbents to extract BUIs from different matrixes, such as attapulgite 1 , ionic liquids 12 , and polymers 2 , 13 .…”