Removal of Actacid Orange-RL Dye Using Biocomposites: Modeling Studies

Noreen, Saima; Bhatti, Haq Nawaz; Zuber, Muhammad; Zahid, Muhammad; Asgher, Muhammad

doi:10.15244/pjoes/68446

Cited by 53 publications

(11 citation statements)

References 16 publications

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“…The adsorption tests were conducted at 25, 40, 50, 60, 70, 80, and 90 °C, and the results are shown in Figure 4 c. Where a decrease in CR removal% occurs with increasing temperature. This may be owed to the desorption manners resulted from the breakdown of adsorption forces that were liable for the adsorption of dye molecules on the adsorbent surface [ 81 ], which might be due to damaging of active sites, the weakening of adsorptive forces between active binding sites of the adsorbent and the adsorbate species [ 3 , 82 , 83 ]. As a result, the optimal temperature for CR adsorption is between 25 °C and 45 °C, especially for ZAS adsorbents.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Application of Zeolite/Acanthophora Spicifera Nanoporous Composite for Adsorption of Congo Red Dye from Wastewater

et al. 2021

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Systematic investigations involving laboratory, analytical, and field trials were carried out to obtain the most efficient adsorbent for the removal of congo red (CR) dye from industrial effluent. Modification of the zeolite (Z) by the Acanthophora Spicifera algae (AS; marine algae) was evaluated in terms of adsorption capability of the zeolite to remove CR dye from aqueous solution. The zeolite/algae composite (ZAS) was fabricated using the wet impregnation technique. The AS, Z, and the synthesized ZAS composite were analyzed utilizing various characterization techniques. The newly synthesized ZAS composite has an adsorption capacity that is significantly higher than that of Z and AS, particularly at low CR concentrations. Batch experiments were carried out to explore the effects of different experimental factors, as well as the dye adsorption isotherms and kinetics. Owing to the presence of intermolecular interactions, the computational analysis showed that the adsorption of the CR molecule on zeolite surfaces is exothermic, energetically favorable, and spontaneous. Furthermore, growing the zeolite surface area has no discernible effect on the adsorption energies in all configurations. The ZAS composite may be used as a low-cost substitute adsorbent for the removal of anionic dyes from industrial wastewater at lower dye concentrations, according to the experimental results. Adsorption of CR dye onto Z, AS, and ZAS adsorbents was adequately explained by pseudo-second-order kinetics and the Langmuir isotherm. The sorption mechanism was also evaluated using Weber’s intra-particle diffusion module. Finally, field testing revealed that the newly synthesized adsorbent was 98.0% efficient at extracting dyes from industrial wastewater, proving the foundation of modern eco-friendly materials that aid in the reuse of industrial wastewater.

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Section: Resultsmentioning

confidence: 99%

Fabrication and Application of Zeolite/Acanthophora Spicifera Nanoporous Composite for Adsorption of Congo Red Dye from Wastewater

et al. 2021

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“…Similarly, rice bran composites have also been prepared and successfully utilized for adsorption and removal of malachite green dye 24 . Date seeds, wheat bran, dolomite, fruit peels are also some of the examples of bio-products that have been utilized as adsorbents 8 , 25 – 27 .…”

Section: Introductionmentioning

confidence: 99%

Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Al-Ghouti

Al-Absi

2020

Sci Rep

281

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In the current study, the mechanistic understanding of the adsorption isotherm and thermodynamic aspects of cationic methylene blue (MB) dye adsorption onto cellulosic olive stones biomass from wastewater were investigated. The batch adsorption of MB onto the olive stones (black and green olive stones) was tested at a variety of pH, dye concentrations, temperatures, and biomass particle sizes. The adsorption thermodynamics such as Gibbs free energy, enthalpy, and entropy changes were also calculated. Moreover, the desorption studies of MB from the spent olive stones were studied to explore the re-usability of the biomasses. The results revealed that under the optimum pH of 10, the maximum MB uptake was achieved i.e. 80.2% for the green olive stones and 70.9% for the black olive stones. The green olive stones were found to be more efficient in remediating higher MB concentrations from water than the black olive stones. The highest MB removal of the green olive stones was achieved at 600 ppm of MB, while the highest MB removal of the black olive stones was observed at 50 ppm of MB. Furthermore, for almost all the concentrations studied (50–1000 ppm), the MB adsorption was the highest at the temperature of 45 °C (P value < 0.05). It was shown by the Fourier transform infrared that the electrostatic interaction and hydrogen bonding were proposed as dominant adsorption mechanisms at basic and acidic pH, respectively. While the hydrophobic-hydrophobic interaction was a dominant mechanism at neutral pH. The thermodynamic studies revealed that the adsorption process was endothermic, spontaneous, and favorable. Moreover, the real wastewater experiment and the desorption studies showed that the green and black olive stones were a cost-effective and promising adsorbents for MB remediation from wastewater on account of their high adsorption and desorption removal capacities.

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“…Palm kernel shell (PKS), a by-product of palm oil processing, has a high carbon content, high density and low ash content, and it is produced in large quantities (2 million tonnes annually) in Malaysia. The preparation of AC from natural materials has been reported in the literature (Regti et al, 2017;Selim et al, 2017;Noreen et al, 2017;Bhatti et al, 2017;Shoukat et al, 2017;Tahir et al, 2017). A summary for preparation of AC from coconut and palm shell and its application in the removal of pollutants from wastewater are presented in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of activated carbon from palm kernel shell for treatment of greywater

Razi

Al-Gheethi

Al-Qaini

et al. 2018

Arab Journal of Basic and Applied Sciences

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The potential of activated carbon from palm kernel shell (PKS-AC) to improve the quality of surface water and greywater based on the measurements of the parameters pH, turbidity, chemical oxygen demand (COD), total dissolved oxygen (TDS) and total suspended solids (TSS) was investigated in the present study. The PKS was acid treated with aqueous H 3 PO 4 (1 N) for overnight at room temperature and then subjected to heat treatment at 550 C for 2 h. The efficiency of the PSK-AC samples of 30 and 40 mm thicknesses was examined for reduction of the above parameters in surface water and greywater samples for 5, 15, 30 and 60 min of the filtration process. The efficiency of COD reduction by 50 and 56.44%, that of TDS by 57.81% and 22%, and that of TSS by 83.11 and 42.11% were detected using the PSK-AC samples above, respectively. The OH group contributed most to the removal of pollutants among the OH, N-H, C¼O, C¼C, C-O-C, C-O-H main functional groups pointed out via Fourier Transform Infra-red (FTIR) analysis on the surface. The scanning electron microscopy (SEM) images revealed that the surface of the raw PSK-AC appeared smooth with holes on the external surface, while the grains were filled in the PSK-AC after the adsorption process. ARTICLE HISTORY

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Removal of Actacid Orange-RL Dye Using Biocomposites: Modeling Studies

Cited by 53 publications

References 16 publications

Fabrication and Application of Zeolite/Acanthophora Spicifera Nanoporous Composite for Adsorption of Congo Red Dye from Wastewater

Fabrication and Application of Zeolite/Acanthophora Spicifera Nanoporous Composite for Adsorption of Congo Red Dye from Wastewater

Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Efficiency of activated carbon from palm kernel shell for treatment of greywater

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