title: Effect of incoming and outgoing exchangeable anions on the release kinetics of phenoxyherbicides nanohybrids.
abstract: The release of chlorophenoxyherbicides agrochemicals, namely 2-chloro- (2CPA), 4-chloro and 2,4,5-trichloro (TCPA) phenoxyacetates from their nanohybrids into various aqueous solutions; carbonate, sulfate and chloride was found to be controlled by pseudo-second order rate expression. The percentage saturated released was found to be anionic-dependent, in the order of carbonate>sulfate>chloride for the release media and 2CPA>4CPA>TCPA for the anionic guests. This study demonstrates that the release of the phenoxyherbicides agrochemicals from the nanohybrid compounds can be tuned by choosing the right combination of exchangeable anions both the incoming and the outgoing anions.
authors.affiliation: Faculty of Applied Sciences, Universiti Technology MARA, 40450 Shah Alam, Selangor, Malaysia. siti_halimah_404@yahoo.com
authors.forename: Siti Halimah
authors.initials: SH
authors.lastname: Sarijo
authors.forename: Mohd Zobir
authors.initials: MZ
authors.lastname: Hussein
authors.forename: Asmah H J
authors.initials: AH
authors.lastname: Yahaya
authors.forename: Zulkarnain
authors.initials: Z
authors.lastname: Zainal
mesh_terms: D000838:Anions; D006540:Herbicides / Q000737:chemistry*; D007700:Kinetics; D053758:Nanoparticles; D014961:X-Ray Diffraction
chemical_list: D000838:Anions; D006540:Herbicides