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- Title
Synthesis of GG-g-P(NIPAM-co-AA)/GO and evaluation of adsorption activity for the diclofenac and metformin.
- Authors
Kamaliya, Bhagvan P.; Dave, Pragnesh N.; Chopda, Lakha V.
- Abstract
The grafting of biopolymer gum ghatti (GG) over the PNIPAM and PAA was done and loaded with graphene oxide (GO). Aim of this work is carried out combine adsorption of sodium diclofenac (SD) and metformin (MF) by the prepared hydrogels under influence of various parameters. The adsorbent GG-g-P(NIPAM-co-PAA)/GO(3 mg) chosen for adsorption activity as it displayed highest swelling capacity. The effect of amount of both adsorbents GG-g-P(NIPAM-co-PAA and GG-g-P(NIPAM-co-PAA)/GO(3 mg) showed that highest adsorption capacity found at 40 mg of adsorbents for both drugs at conditions: 100 mg/L concentration, 30 °C, 24 h and pH 6 and subsequently became stable. Both the drugs were removed in greater amount at 25 mg/L concentration, 24 h of contact time, 30 °C, 40 mg amount of both adsorbents and pH 6. Effect of time revealed that as time elevated from 2 h to 12 (100 mg/L concentration,, 30 °C, 40 mg amount of both adsorbents and pH 6) led to increase adsorption efficiency and after that increase time did not much impact on adsorption activity. Adsorption activity of hydrogels declined with increase of temperature (100 mg/L concentration, 12 h, 40 mg amount of both adsorbents and pH 6). The acidic conditions favored adsorption of SD while MF adsorbed under the weak acidic(100 mg/L concentration, 30 °C, 12 h, 40 mg amount of both adsorbents). However, basic conditions did not much influence on adsorption of MF but effected on adsorption activity of SD. Adsorption isotherm and kinetic model suggested that adsorption is homogenous and chemical in nature. The maximum adsorption capacity (qm) found to be 289.01 and 154.55 mg/g for SD and MF respectively. Highlights: • Synthesis of GG-g-P(NIPAM-co-AA)/GO • Characterize by FT-IR, XRD, SEM and BET surface area • The adsorption of sodium diclofenac and metformin was undertaken • The hydrogel exhibited moderate and good adsorption activity for sodium diclofenac and metformin • Adsorption process followed the Langmuir adsorption isotherm and pseudo-second kinetic model
- Subjects
ADSORPTION (Chemistry); ADSORPTION isotherms; ADSORPTION capacity; LANGMUIR isotherms; DICLOFENAC; METFORMIN; SORBENTS
- Publication
Journal of Environmental Health Science & Engineering, 2023, Vol 21, Issue 2, p403
- ISSN
2052-336X
- Publication type
Article
- DOI
10.1007/s40201-023-00867-w