<i>Raphanus caudatus</i> biomass powder as potential adsorbent for the removal of crystal violet and Rhodamine B dye from wastewater-Reference-Cited by-同舟云学术

Raphanus caudatus biomass powder as potential adsorbent for the removal of crystal violet and Rhodamine B dye from wastewater

Published:2023-10-30 Issue:11 Volume:237 Page:1863-1883
ISSN:0942-9352
Container-title:Zeitschrift für Physikalische Chemie
language:en
Short-container-title:

Author:

Naseem Khalida¹^ORCID,Ahmad Khalil²,Anwar Aneela³⁴,Farooqi Zahoor H.⁵^ORCID,Najeeb Jawayria⁶,Iftikhar Muhammad Ahmer¹,Hassan Warda⁷,Batool Ain Ul¹,Haider Sajjad⁸,Akhtar Muhammad Saeed⁹

Affiliation:

1. Department of Basic and Applied Chemistry, Faculty of Science and Technology , University of Central Punjab , Lahore 54000 , Pakistan

2. Department of Chemistry , University of Management and Technology , Sialkot 51310 , Pakistan

3. Biomedical Engineering Department , Stevens Institute of Technology , Hoboken , NJ , 07030 , USA

4. Department of Chemistry , University of Engineering and Technology , GT Road , Lahore 54890 , Pakistan

5. School of Chemistry , University of the Punjab , Lahore 54590 , Pakistan

6. Department of Chemistry , University of Gujrat , Gujrat 50700 , Pakistan

7. Department of Chemistry , The Women University Multan , Multan 66000 , Pakistan

8. Chemical Engineering Department, College of Engineering , King Saud University , P.O.Box 800 , Riyadh 11421 , Saudi Arabia

9. School of Chemical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea

Abstract

Abstract In this work, Raphanus caudatus (radish pod) leaves biomass was used as an adsorbent for the removal of crystal violet (CV) and Rhodamine B (RhB) dye from water medium. Adsorption process was performed by changing different adsorption factors such as adsorbent dose, agitation time, adsorbate concentration, pH and temperature to get maximum removal of dyes. It was observed that R. caudatus leaves biomass showed 48.7 and 19.0 mg/g value of adsorption capacity for CV and RhB dyes, respectively. High adsorption capacity value for CV was observed due to its less complex structure and small sized molecules as compared to the RhB dye molecules. Dyes removal process followed pseudo second order with the values of regression factor (R 2) found as 0.999 and 0.998 for CV and RhB, respectively. Values of R 2 were found as 0.999 and 0.998 for the removal of CV and RhB respectively while following the Langmuir adsorption isotherm model. It illustrates the single layered dye molecules adsorption over the homogeneous surface of the adsorbent. Value of enthalpy (ΔH°) was found as 11.983 and 12.28 kJ/mol for CV and RhB, respectively. It indicates endothermic nature of the process along with the increased entropy at the surface of the adsorbent during the process. Increase of salt concentration in adsorption medium caused the decreased percentage removal of dyes. Reported adsorbent also showed potential for the removal of toxic dyes from industrial wastewater.

Funder

Researchers Supporting Project, King Saud University, Riyadh, Saudi Arabia

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/zpch-2023-0259/pdf

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