Selective adsorption of Pb(II) ion on amine-rich functionalized rice husk magnetic nanoparticle biocomposites in aqueous solution

Nata, Iryanti Fatyasari; Wicakso, Doni Rahmat; Mirwan, Agus; Irawan, Chairul; Ramadhani, Divany; Ursulla,

doi:10.1016/j.jece.2020.104339

Cited by 28 publications

(13 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The reaction between the contaminant and the adsorbent is pronounced by adsorption isotherms (Seidmohammadi et al, 2019). As Figure depicts, under optimum condition, the R 2 values for the Cr (VI) adsorption by modified adsorbents (acidic, alkali, and biochar rice bran) for Freundlich isotherm were 0.99, which were greater than those obtained for the Langmuir model consistent with the results of the Zhang et al (2011), Asgari et al (2015, and Nata et al (2020). The R 2 values estimated for the Langmuir model were 0.79, 0.88, and 0.85 for acidic, biochar, and alkali rice bran, respectively.…”

Section: Isotherm and Kinetic Analysessupporting

confidence: 79%

Optimizing modified rice bran for treating aqueous solutions polluted by Cr (VI) ions: isotherm and kinetics analyses

Ameri

Hoodaji

Rajaei

et al. 2021

qas

View full text Add to dashboard Cite

This study investigated the possibility and efficiency of absorbing chromium (VI) (Cr [VI]) ions from the polluted solutions by employing the chemically modified adsorbents (alkali, biochar, and acid rice bran), focusing on the possible impacts of the solution’s pH values, adsorbent’s dosages, concentrations, and contact times. The colori-metric method was used for Cr determination by employing an ultraviolet/visible spectrophotometer. The scanning electron microscope and Fourier transform infrared spectroscopy were used to analyze the characteristics of the modified adsorbents. The findings indicated that the optimized acid, biochar, alkali, and unmodified rice bran removal efficiency for Cr (VI) were 94.50%, 94.27%, 88.60%, and 90.18%, respectively. The increase of adsorbent dosage up to 2 g/L led to a rise in removal effectiveness (82.06%). Furthermore, the highest removal efficiency was obtained (94%) at the pH of 2.0, the contact duration of 100 min, Cr (VI) concentration of 50 mg/L, and dosage of 2 g/L, which was statistically the optimal condition for the modified rice bran. The adsorption kinetics was agreeably suited to pseudo-second-order, whereas the Freundlich isotherm equation was also suitably expounded the study’s findings. The findings implied that the acid and biochar rice bran performed remarkably in the reme-diation of the wastewater compared with alkali rice bran for reuse for industrial, agricultural, and environmental purposes.

show abstract

Section: Isotherm and Kinetic Analysessupporting

confidence: 79%

Optimizing modified rice bran for treating aqueous solutions polluted by Cr (VI) ions: isotherm and kinetics analyses

Ameri

Hoodaji

Rajaei

et al. 2021

qas

View full text Add to dashboard Cite

show abstract

“…Several techniques such as ion exchange, reverse osmosis, chemical precipitation, membrane separation, adsorption, and solvent extraction have been used to eliminate heavy metals, dye, and contaminants in waste water [ 16 , 17 , 18 , 19 ]. The adsorption process is an effective practice, and a low-cost method for removal of Pb(II) ions from aqueous solutions [ 20 ]. However, if the surface modification does not have enough active surface sites, then adsorption is less efficient.…”

Section: Introductionmentioning

confidence: 99%

“…Our previous studies have concerned the use of amine rice husk magnetic nanoparticles for metal ion adsorption [ 20 , 24 ]. Those studies are in order to increase the adsorption capacity of metal ions and specific surface area created through modifying of sugarcane bagasse cellulose; hence, the materials become biocomposites with robust magnetic property for easy separation.…”

Section: Introductionmentioning

confidence: 99%

The Amine Functionalized Sugarcane Bagasse Biocomposites as Magnetically Adsorbent for Contaminants Removal in Aqueous Solution

et al. 2021

Self Cite

View full text Add to dashboard Cite

The method of solvothermal by one-step operation has been performed to synthesize of magnetic amine-functionalized sugarcane bagasse biocomposites (SB-MH). The obtained SB-MH contains 62.34% of Fe, 17.8 mmol/g of amine, and a magnetic property of 19.46 emu/g. The biocomposite surface area increased significantly from 1.617 to 25.789 m2/g after amine functionalization. The optimum condition of SB-MH used for Pb(II) ion removal was achieved at pH 5 for 360 min with adsorption capacity of 203.522 mg/g. The pseudo 2nd order was well-fitted to the model of Pb(II) ion adsorption. Meanwhile, other contaminant parameters number of Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), and dye in wastewater were also remarkably reduced by about 74.4%, 88.0%, and 96.7%, respectively. The reusability of SB-MH with 4th repetitions showed only a slight decrease in performance of 5%. Therefore, the proposed magnetic amine-functionalized sugarcane bagasse biocomposites lead to a very potential adsorbent implemented in high scale due to high surface area, easy separation, stable materials and capability to adsorb contaminants from aqueous solution.

show abstract

“…A preservação da qualidade da água tem se tornado uma questão ambiental relevante considerando a diminuição dos recursos hídricos e aumento da população. NATA et al, 2020).…”

Section: Introductionunclassified

Elaboração, Caracterização Nutricional E Microbiológica De Iogurtes Com Adição De Coco Queimado E Calda De Coco, Preparados a Partir De Polpa De Coco Verde Da Espécie (Cocus Nucifera L.)

Luz¹,

Oliveira²,

Mouchrek³

et al. 2020

As Ciências Agrárias E Seus Impactos Na Sociedade (Vol. 3)

View full text Add to dashboard Cite

show abstract

Selective adsorption of Pb(II) ion on amine-rich functionalized rice husk magnetic nanoparticle biocomposites in aqueous solution

Cited by 28 publications

References 35 publications

Optimizing modified rice bran for treating aqueous solutions polluted by Cr (VI) ions: isotherm and kinetics analyses

Optimizing modified rice bran for treating aqueous solutions polluted by Cr (VI) ions: isotherm and kinetics analyses

The Amine Functionalized Sugarcane Bagasse Biocomposites as Magnetically Adsorbent for Contaminants Removal in Aqueous Solution

Elaboração, Caracterização Nutricional E Microbiológica De Iogurtes Com Adição De Coco Queimado E Calda De Coco, Preparados a Partir De Polpa De Coco Verde Da Espécie (Cocus Nucifera L.)

Contact Info

Product

Resources

About