We have located links that may give you full text access.
A novel environmental-friendly nanobiocomposite synthesis by EDTA and chitosan functionalized magnetic graphene oxide for high removal of Rhodamine B: Adsorption mechanism and separation property.
Chemosphere 2018 November 17
The synergistic combination of two different environmentally friendly functional groups (EDTA and Chitosan) with magnetic graphene oxide (mGO) nano-sheets was used for synthesizing a promising nanobiocomposite adsorbent (CS-EDTA-mGO) for efficient removal of a cationic dye, Rhodamine B (RhB), from aqueous solutions. CS-EDTA-mGO nanobiocomposite was characterized by XRD, FTIR, VSM, TGA, and zeta potential. Further, the morphological features of the synthesized graphene oxide and mGO were examined by SEM technique. The adsorption conditions were designed and optimized by experimental design applied by faced-central composite design. CS-EDTA-mGO indicated high sorption capacity where the R% of 92% was obtained under optimal conditions (sorbent dosage = 0.14 g L-1 ; dye concentration = 114 mg L-1 ; pH = 7.5; temperature = 33 °C). The result of kinetics studies revealed that the adsorption was considerably fast and the data followed the pseudo-second-order kinetic model. The adsorption equilibrium of the cationic dye by CS-EDTA-mGO showed that the Langmuir model fitted the experimental data significantly and the maximum adsorption capacity estimated from Langmuir model was 1085.3 mg g-1 , which was highly consistent with the maximum experimental adsorption capacity. The thermodynamic parameters represented that the interaction in the adsorption process was endothermic and the randomness at the solid/solution interface increased during the process. Both physical and chemical mechanisms were involved in the adsorption process, owing to the complicated structural characteristics of the nanobiocomposite. After seven cycles of adsorption/desorption, the removal efficiency of CS-EDTA-mGO nanobiocomposite was still over 80% with little loss of adsorption capacity (≈2%).
Full text links
Related Resources
Trending Papers
Challenges in Septic Shock: From New Hemodynamics to Blood Purification Therapies.Journal of Personalized Medicine 2024 Februrary 4
Molecular Targets of Novel Therapeutics for Diabetic Kidney Disease: A New Era of Nephroprotection.International Journal of Molecular Sciences 2024 April 4
The 'Ten Commandments' for the 2023 European Society of Cardiology guidelines for the management of endocarditis.European Heart Journal 2024 April 18
A Guide to the Use of Vasopressors and Inotropes for Patients in Shock.Journal of Intensive Care Medicine 2024 April 14
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app