Efficient Removal of 2,4-Dichlorophenoxyacetic Acid from Aqueous Medium Using Polydopamine/Polyacrylamide Co-deposited Magnetic Sporopollenin and Optimization with Response Surface Methodology Approach

Yılmaz Ş., Zengin A., Şahan T., Gübbük İ. H.

Journal of Polymers and the Environment, vol.31, no.1, pp.36-49, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.1007/s10924-022-02617-9
  • Journal Name: Journal of Polymers and the Environment
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, BIOSIS, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, Geobase, Greenfile, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Page Numbers: pp.36-49
  • Keywords: 2, 4-dichlorophenoxyacetic acid, Adsorption, Magnetic polymer, Optimization, Response surface methodology, Sporopollenin
  • Van Yüzüncü Yıl University Affiliated: Yes


© 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.In this study, a novel binary grafted polydopamine/polyacrylamide onto magnetic sporopollenin (PDA/PAAm@Fe3O4@SP) was synthesized in one step polymerization strategy to investigate its removal performance of 2,4-dichlorophenoxyacetic acid (2,4-D). The response surface methodology (RSM) was applied to evaluate the effects of the process factors including pH (2–8), adsorbent concentration (0.5-2 g/L), initial 2,4-D concentration (Co) (20–80 mg/L), and contact time (30–180 min) for the 2,4-D removal performance. The central composite design (CCD) through RSM was utilized to design the experiments as well as to optimize and model the 2,4-D adsorption process. The ANOVA results clearly shows that the quadratic model (p < 0.0001) was sufficient to the best predicting of the removal performance of 2,4-D (R2 = 0.99). The optimum conditions for the maximum 2,4-D removal (88.31%) was achieved at pH of 3.51, adsorbent concentration of 0.75 g/L, Co of 52.85 mg/L, and contact time of 148.53 min. The adsorption kinetic was represented by both Weber-Morris (R2 = 0.99) and pseudo-second-order models (R2 = 0.99). The isotherm for 2,4-D completely fitted the Dubinin-Radushkevich (D-R) and Langmuir models with R2 values of 0.98. The obtained outcomes indicated that the prepared material may be utilized as an alternative adsorbent for the removal of 2,4-D from waterbodies and the RSM method can be utilized as an eco-friendly and low-cost statistical approach for the elimination of 2,4-D.