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Soleimani K, Dadkhah Tehrani A, Adeli M. Preparation of new GO-based slide ring hydrogel through a convenient one-pot approach as methylene blue absorbent. Carbohydr Polym. 2018;187:94-101doi: 10.1016/j.carbpol.2018.01.084.
Soleimani, K., Dadkhah Tehrani, A., & Adeli, M. (2018). Preparation of new GO-based slide ring hydrogel through a convenient one-pot approach as methylene blue absorbent. Carbohydrate polymers, 18794-101. https://doi.org/10.1016/j.carbpol.2018.01.084
Soleimani, Khadijeh, et al. "Preparation of new GO-based slide ring hydrogel through a convenient one-pot approach as methylene blue absorbent." Carbohydrate polymers vol. 187 (2018): 94-101. doi: https://doi.org/10.1016/j.carbpol.2018.01.084
Soleimani K, Dadkhah Tehrani A, Adeli M. Preparation of new GO-based slide ring hydrogel through a convenient one-pot approach as methylene blue absorbent. Carbohydr Polym. 2018 May 01;187:94-101. doi: 10.1016/j.carbpol.2018.01.084. Epub 2018 Jan 31. PMID: 29486849.
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Carbohydr Polym. 2018 May 01;187:94-101. doi: 10.1016/j.carbpol.2018.01.084. Epub 2018 Jan 31.

Preparation of new GO-based slide ring hydrogel through a convenient one-pot approach as methylene blue absorbent.

Carbohydrate polymers

Khadijeh Soleimani, Abbas Dadkhah Tehrani, Mohsen Adeli

Affiliations

  1. Department of Chemistry, Faculty of Science, Lorestan University, Khorramabad, Iran.
  2. Department of Chemistry, Faculty of Science, Lorestan University, Khorramabad, Iran. Electronic address: [email protected].

PMID: 29486849 DOI: 10.1016/j.carbpol.2018.01.084

Abstract

Slide ring hydrogels (SRHG) with supramolecular structures are a new class of hydrogels that contrary to the traditional hydrogels comprise dynamic cross-linking points. Herein, we reported on the fabrication of a new slide ring hydrogel through a very convenient one-pot approach. In this regard, isocyanate functionalized GO was synthesized and used as a stopper as well as cross-linker in the presence of a polypseudorotaxane of cyclodextrin threaded on poly(ethylene glycol) (PR). The surface of the resulting SRHG modified via graft polymerization with polyacrylamide (PAAm) and its application as a new type of absorbent for wastewater treatment was studied. Due to its porous structure and its high content of surface functional groups, the synthesized hydrogel was able to efficiently remove cationic dye methylene blue (MB) from wastewater in a short time. The maximum adsorption capacity of the resulting hydrogel was 92.3 mg/g which exhibited an almost 100% increment as compared to that of untreated GO. The adsorption mechanism of MB was also investigated. The kinetic data, obtained at the optimum pH 7, were fitted well with the pseudo-second-order model. Results from degradation and recycling experiments toward MB showed that the SRHG was stable and reusable.

Copyright © 2018 Elsevier Ltd. All rights reserved.

Keywords: Adsorption kinetics; Graphene oxide; Hydrogel; Methylene blue; Polyrotaxane

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