Adsorption kinetics and isotherms study of 2, 4-dichlorophenoxyacetic acid by 3dimensional/graphene oxide/magnetic from aquatic solutions. Issue 5 (9th April 2022)

• Record Type: Journal Article
• Authors: Hajighasemkhan, Alireza; Taghavi, Lobat; Moniri, Elham; Hassani, Amir Hessam; Panahi, Homayon Ahmad
• Is Part Of: International journal of environmental analytical chemistry. Volume 102:Issue 5(2022)
• Page Start: 1171
• Page End: 1191
• Publication Date: 2022-04-09
• Subjects: 2-dichlorophenoxyacetic acid -- polymer nanomagnetic adsorbent -- thermosensitive adsorbent -- adsorption; Ecology -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental chemistry -- Periodicals; Pollution -- Periodicals; 577.14
• DOI: 10.1080/03067319.2020.1734194
• Languages: English
• ISSNs: 0306-7319

Abstract

ABSTRACT: 3D polymer nanomagnetic (3D/GO/Fe3 O4 ) adsorbent was fabricated and used for determining removal of 2, 4-D from an aqueous solution. The adsorbent was characterised by FTIR, XRD, FE-SEM, TEM, VSM, and TGA. The influence of pH, contact time, 2, 4-D initial concentration, temperature and adsorbent dosage in adsorption efficiency was examined. Maximum removal (100%) was observed at the optimum adsorption condition (pH: 3, contact time: 180 min, adsorbent dosage: 5 g/L, and temperature: 50°C). Moreover, the equilibrium adsorption data were fitted to Langmuir ( R 2 = 0.995) and pseudo-second-order model ( R 2 = 0.991). The model parameters were evaluated and maximum adsorption capacity ( q max = 5.62 mg/g) was reported. In addition, applying adsorbent to remove 2, 4-D from the real samples of agricultural wastewater shows successfully 100% removal efficiency. Therefore, according to removal efficiency (100%), this adsorbent is an excellent alternative for removal herbicide in high temperature industry.