Studies on adsorption behavior of electrospun nanofibers for pollutant remediation from simulated wastewater

Dan Bahadur Pal*, Arvind Singh, Roli Saini, Neha Srivastava, Khursheed Muzammil, Irfan Ahmad, Vijai Kumar Gupta

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The objective of this study is to investigate the adsorption behavior of an electrospun ceria-nanofiber adsorbent in removing pollutants from a simulated solution. Fourier transform infrared spectroscopy and X-ray diffraction were used to characterize this nanofiber composite. Adsorption parameters including contact time, pH, starting arsenic concentration, and adsorbent dose were optimized using batch adsorption studies. After copper was added to nanofiber, maximum removal efficiencies were increased to 96.5% under optimal conditions (1.2 g/L adsorbate dose; 2.0 ppm initial As(III) concentration; and pH of 5.0). Furthermore, the response surface methodology was also successfully applied to the design optimization of the process with central composite design. The Temkin isotherm model (R2 = 0.98) better described the adsorption equilibrium results. The pseudo-second-order kinetic model was followed by adsorption experimental data. Other kinetics theories, such as Elovich, intra-particle, and film diffusion, were also used to develop a better understanding of the adsorption mechanism. The viability of a copper/ceria composite nanofiber in the removal of arsenic demonstrates an emerging candidate in the removal of pollutants from wastewater.

Original languageEnglish
JournalApplied Nanoscience (Switzerland)
Early online date1 Jul 2022
DOIs
Publication statusFirst published - 1 Jul 2022

Bibliographical note

Funding Information:
Authors acknowledge to Department of chemical engineering IIT (BHU) Varanasi and Birla Institute of Technology Ranchi for providing characterization facilities. The authors are grateful to Scientific Research Deanship at King Khalid University, Abha, Saudi Arabia for their financial support through the Large Research Group Project under grant number (RGP.02-87-43).

Publisher Copyright:
© 2022, King Abdulaziz City for Science and Technology.

Keywords

  • Adsorption
  • Electrospun
  • Heavy metal
  • Isothermal kinetics
  • Nanofiber

Fingerprint

Dive into the research topics of 'Studies on adsorption behavior of electrospun nanofibers for pollutant remediation from simulated wastewater'. Together they form a unique fingerprint.

Cite this