Dip-coated rapeseed meal composite as a green carrier for light-induced controlled release of pesticide. (14th September 2020)

• Record Type: Journal Article
• Authors: Chenxi, Yang; Juan, Li; Jian, Wang; Zhen, Guo; Huanyuan, Wang; Chendi, Shi; Dongwen, Hua; Ling, Li
• Is Part Of: New journal of chemistry. Volume 44:Number 37(2020)
• Page Start: 15983
• Page End: 15993
• Publication Date: 2020-09-14
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj02771e
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : 4-Aminoazobenzene moieties act as light-driven "stirrers" to stimulate the release of pesticide. Abstract : In this work, we report the novel fabrication of polymerized octadecylsiloxane (PODS)/4-aminoazobenzene (AAB) coated rapeseed meal (RSM) using a facile one-pot dip-coating method. The as-prepared RSM-PODS/AAB employs RSM as a carrier, the PODS coating endows the material with hydrophobicity, thus improving the loading rate of pinoxaden (Pxd) of RSM-PODS/AAB, and the AAB moieties act as light-driven "stirrers" to stir the release of Pxd. The structure and composition were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, ultraviolet-visible spectroscopy and contact angle measurements. The experimental results indicate that the loading rate of Pxd was increased by 21.38% compared with pristine RSM. More importantly, the Pxd-loaded RSM-PODS/AAB showed perfect UV-visible and sunlight controlled release performance, the excellent biodegradability of RSM effectively supplying the nutrient elements of plant growth in the soil. Overall, this system provides a promising way to improve controlled drug release with UV-visible- and sunlight-responsive behavior.