Skip to content
Research Article Open access CC BY 4.0

Congo Red Removal from Polluted Water using NaOH Treated Fallen Leaves of Ficus racemosa

G. Indramahalakshmi

Asian Journal of Chemical Sciences · pp. 29–42 · Published 12 Mar 2024

10.9734/ajocs/2024/v14i2292

Abstract

Naoh treated biosorbent  Ficus Racemosa Leaf Powder (NaFRLP) was prepared from the fallen leaves of the plant. FT-IR, SEM and BET analysis were done to characterize the biosorbent. The biosorbent was found to be mesoporous with an average pore size 18 nm. Batch adsorption equilibrium studies were conducted for the adsorption of congo red on NaFRLP as a function of adsorbent dosage, agitation speed, dye concentration, temperature and contact time. Batch adsorption studies revealed that with an increase in the time of adsorption, the percentage removal of congo red increases and with an increase in the concentration of dye solution, congo red removal decreases. Initial dye concentration of 100 mgL-1, agitation speed 200 rpm and adsorbent dosage 1gL-1 were the optimum conditions for the effective removal of congo red. The adsorption data well agreed with the Langmuir isotherm as indicated by the higher correlation coefficient (R2=0.962) value. Thermodynamic analysis of the batch adsorption studies indicated that all the processes studied were spontaneous with the congo red adsorption on NaFRLP being endothermic.  Intra particle diffusion model was also tested. NaFRLP was found to be an effective adsorbent for the removal of congo red from the polluted water.

Congo red Ficus racemosa thermodynamic isotherm SEM BET thermodynamic analysis diffusion model cancer

References (21)

  1. 1 THE CONSTITUTION AND FUNDAMENTAL PROPERTIES OF SOLIDS AND LIQUIDS. PART I. SOLIDS. [DOI]
  2. 2 Über die Adsorption in Lösungen [DOI]
  3. 3 Mistakes and inconsistencies regarding adsorption of contaminants from aqueous solutions: A critical review [DOI]
  4. 4 Pore- and Solid-Diffusion Kinetics in Fixed-Bed Adsorption under Constant-Pattern Conditions [DOI]
  5. 5 Citation review of Lagergren kinetic rate equation on adsorption reactions [DOI]
  6. 6 Critical review in adsorption kinetic models [DOI]
  7. 7 Spent tea leaves: A new non-conventional and low-cost adsorbent for removal of basic dye from aqueous solutions [DOI]
  8. 8 Adsorption of Co(II) and Ni(II) by EDTA- and/or DTPA-modified chitosan: Kinetic and equilibrium modeling [DOI]
  9. 9 Removal of lead and copper ions from aqueous solutions by bacterial strain isolated from soil [DOI]
  10. 10 Recent advances in removal of Congo Red dye by adsorption using an industrial waste [DOI]
  11. 11 A comparative study on the biosorption characteristics of some yeasts for Remazol Blue reactive dye [DOI]
  12. 12 Biosorption of Cd, Cu, Ni, Mn and Zn from aqueous solutions by thermophilic bacteria, Geobacillus toebii sub.sp. decanicus and Geobacillus thermoleovorans sub.sp. stromboliensis: Equilibrium, kinetic and thermodynamic studies [DOI]
  13. 13 Adsorptive removal of acid violet 17 dye from wastewater using biosorbent obtained from NaOH and H2SO4 activation of fallen leaves of Ficus racemosa [DOI]
  14. 14 An excellent fluoride sorption behavior of ceramic adsorbent [DOI]
  15. 15 Defluoridation studies using active carbon derived from the barks of Ficus racemosa plant [DOI]
  16. 16 Progress in Biomass and Bioenergy Production [DOI]
  17. 17 NaOH-treated dead leaves of Ficus racemosa as an efficient biosorbent for Acid Blue 25 removal [DOI]
  18. 18 Monitoring of fluoride concentration in ground water of Prakasham District in India: correlation with physico-chemical parameters.
  19. 19 Kinetic, isotherm and thermodynamic studies on biosorption of chromium(VI) by using activated carbon from leaves of Ficus nitida [DOI]
  20. 20 BIOSORPTION OF AMARANTH DYE FROM AQUEOUS SOLUTION BY ROOTS, LEAVES, STEMS AND THE WHOLE PLANT OF E. crassipes [DOI]
  21. 21 Adsorption of Congo red from Aqueous Solution using Typha australis Leaves as a Low Cost adsorbent [DOI]

Cited by 2

Impact of Ultrasound Pretreatment on Extraction Efficiency and Quality Attributes of Cherry Guava

K. V, N. S., P. R. · Journal of food process engineering · 2025

Showing 1 of 2 known citations — external sources report more than can currently be individually listed.

Related research

Article metrics

Real usage data collected on this platform.

32

Page views

0

PDF downloads

2

Outbound clicks

2

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.