Adsorptive removal of dye from textile wastewater employing Moringa oleifera leaves biochar as a natural biosorbent

Hasan, M. M.; Biruni, Mir Tanvir Al; Azad, S. M. Farhaduzzaman; Ahmed, Tanvir

doi:10.1007/s13399-022-03196-4

Cited by 4 publications

(1 citation statement)

References 100 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The value of pH is a key factor in the dye’s ability to adhere to FO-CBPBB. The pH value had an impact on the level of ionization, the surface charge of the adsorbent, and the kind of dye solution. , Electrostatic interactions among the functional groups on the FO-CBPBB surface and the dye solution are controlled by pH. The shift in the pH value from 3 to 12 was used to investigate the impact of pH on the elimination of BB 1 and BO 2 dyes from an aqueous solution.…”

Section: Resultsmentioning

confidence: 99%

Metal Oxide-Impregnated Biochar for Azo Dye Remediation as Revealed through Kinetics, Thermodynamics, and Response Surface Methodology

Aslam,

Batool,

Noreen

et al. 2024

ACS Omega

View full text Add to dashboard Cite

This study reports for the first time the adsorption capacity of a novel adsorbent Croton bonplandianus Baill. biochar. Its adsorption capacity was further enhanced by loading magnetic composites on it, which makes it an efficient medium for the adsorption of dyes. Two azo dyes, Basic Brown 1 (BB 1 ) and Basic Orange 2 (BO 2 ), were studied for their effective adsorption from aqueous media. A comprehensive characterization was performed by using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) to study the properties of Fe 2 O 3 -loaded C. bonplandianus Baill. biochar (FO-CBPBB). A series of batch experiments were conducted to optimize various parameters (pH, contact time, adsorbent amount, initial BB 1 and BO 2 concentrations, and temperature) for the maximum adsorption of BB 1 and BO 2 on the FO-CBPBB adsorbent. The percentage of BB 1 and BO 2 dyes that adsorb to FO-CBPBB under the best experimental circumstances (pH of solution 7, contact time 80 min, temperature of solution 40 °C, initial BB 1 and BO 2 dye concentrations 80 mg L −1 , and adsorbent dose 1 g L −1 ) was 93 and 95%, respectively. The best adsorption of BB 1 and BO 2 was accomplished by optimizing the effects of several factors, including the starting dye concentration, contact time, and temperature, based on the central composite design. The Freundlich and Langmuir isotherm models were used to examine the equilibrium data. The Langmuir isotherm with the greatest adsorption capacity and R 2 value effectively captured the experimental results. When kinetic parameters were investigated, it was found that pseudo-second-order was appropriate, reflecting the fact that the dye−adsorbent interaction was the rate-controlling factor in this study. The sorption process was endothermic and spontaneous, as shown by the thermodynamic variables. Based on the interaction between the adsorbent and azo dyes, it was concluded that the adsorption process was electrostatic in nature. Adsorbents that have been synthesized can effectively remove azo dyes from wastewater. Excellent regeneration efficiency was exhibited by FO-CBPBB, which makes it an ecofriendly and cost-effective alternative to other costly techniques applied for water purification.

show abstract

Section: Resultsmentioning

confidence: 99%

Metal Oxide-Impregnated Biochar for Azo Dye Remediation as Revealed through Kinetics, Thermodynamics, and Response Surface Methodology

Aslam,

Batool,

Noreen

et al. 2024

ACS Omega

View full text Add to dashboard Cite

show abstract

Valorization of agricultural by-product Moringa stenopetala seed husks into activated carbon for Reactive Black and Basic Blue dye removal from textile wastewater

Donyanavard,

Tavakoli,

Rout

et al. 2024

Biomass Conv. Bioref.

View full text Add to dashboard Cite

Optimization of reactive black 5 dye removal onto kaolin filter cake activated carbon using response surface methodology

Alemayehu,

Alemayehu

2024

Preprint

View full text Add to dashboard Cite

This work investigates the removal of reactive black 5 (RB5) dye from textile wastewater, which poses significant environmental hazards, using kaolin filter cake (KFC), a new, affordable, and environmentally friendly adsorbent. The effectiveness of KFC's decolorization was assessed by adsorption tests that looked at batch process variables, such as pH, adsorbent dosage, contact time, and beginning dye concentration. FTIR, SEM, XRD, and BET techniques described the adsorbent's morphological and physicochemical characteristics. The adsorption data closely fit the Langmuir isotherm model, indicating a maximum adsorption capacity of 60.24 mg g-1. Kinetic studies revealed that the adsorption process followed a pseudo-second-order model. Response surface methodology (RSM) was employed to optimize the removal of RB5. Remarkably, KFC demonstrated excellent regeneration potential, retaining 60.52% of its adsorption capacity after five cycles. These findings suggest that KFC is a highly promising adsorbent with significant potential for sustainable, cost-effective, environmentally friendly, and efficient applications in textile wastewater treatment.

show abstract

Adsorptive removal of dye from textile wastewater employing Moringa oleifera leaves biochar as a natural biosorbent

Cited by 4 publications

References 100 publications

Metal Oxide-Impregnated Biochar for Azo Dye Remediation as Revealed through Kinetics, Thermodynamics, and Response Surface Methodology

Metal Oxide-Impregnated Biochar for Azo Dye Remediation as Revealed through Kinetics, Thermodynamics, and Response Surface Methodology

Valorization of agricultural by-product Moringa stenopetala seed husks into activated carbon for Reactive Black and Basic Blue dye removal from textile wastewater

Optimization of reactive black 5 dye removal onto kaolin filter cake activated carbon using response surface methodology

Contact Info

Product

Resources

About