A GO-CS@MOF [Zn(BDC)(DMF)] material for the adsorption of chromium(VI) ions from aqueous solution

Samuel, Melvin S.; Subramaniyan, Vasudevan; Bhattacharya, Jayanta; Parthiban, C.; Chand, Santanu; Singh, N. D. Pradeep

doi:10.1016/j.compositesb.2018.06.034

Cited by 131 publications

(40 citation statements)

References 117 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is mainly due to the increase in the number of active sites available for the adsorption Cr(VI) ions on PANI/Ag (AMPSA)/GO QDs NC. 32,33,37 The efficiency of the PANI/Ag (AMPSA)/GO QDs NC with 1 g L À1 for Cr(VI) removal was 99.9% aer 60 min, and the residual concentration of Cr(VI) was 0.0370 mg L À1 , which meets the standards for the Cr(VI) level in surface water (0.05 mg L À1 ) set by the WHO. 1 Therefore, 1 g L À1 of adsorbent is sufficient for the for the quantitative removal of chromium from wastewater with an initial Cr(VI) concentration of 60 mg L À1 .…”

Section: Resultssupporting

confidence: 51%

“…The k 2 values decreased with an increase in the Cr(VI) concentration, suggesting that rate of Cr(VI) adsorption on PANI/Ag (AMPSA)/GO QDs NC increased as the Cr(VI) concentration decreased. 33 These results conrm that Cr(VI) adsorption by the PANI/Ag (AMPSA)/GO QDs NC follows pseudo-second order kinetics and chemisorption (chemical interaction such as complexation and redox reaction) occurs. 47 3.1.6 The effect of the temperature.…”

Section: Resultsmentioning

confidence: 84%

“…10,25,[29][30][31][32] Although, the R of Cr(VI) from solution at pH 12 using PANI/Ag (AMPSA)/GO QDs NC is only 61%, this value is much higher than other adsorbents. [28][29][30]33 3.1.2 Mechanism of Cr(VI) removal. The proposed mechanism involved in the removal of Cr(VI) on the adsorbent can be understood as follows.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

The development of a ternary nanocomposite for the removal of Cr(vi) ions from aqueous solutions

et al. 2019

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 51%

Section: Resultsmentioning

confidence: 84%

See 1 more Smart Citation

The development of a ternary nanocomposite for the removal of Cr(vi) ions from aqueous solutions

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Recently, magnetically modified graphene oxide/chitosan/ferrite (GCF) and chitosan grafted graphene oxide (CS-GO) nanocomposite materials were successfully investigated as suitable adsorbents for efficient removal of Cr(VI) from industrial wastewaters [20][21][22] . Moreover, Samuel et al 23 developed graphene oxide/fungal hyphae (GO-FH) bio-nanocomposite material with maximum adsorption capacity of Cr(VI) (up to 212 mg/g) and excellent regeneration performance.…”

Section: Bioaccumulation Of Ni 2+ and Cr 2+ By L Plantarum Mf042018mentioning

confidence: 99%

Assessment of the heavy metal bioremediation efficiency of the novel marine lactic acid bacterium, Lactobacillus plantarum MF042018

Ameen

Hamdan

El-Naggar

2020

Sci Rep

View full text Add to dashboard Cite

Heavy metal pollution is one of the most serious environmental and human health risk problem associated with industrial progress. The present study was conducted with the goal of isolation and characterization of metal-resistant lactic acid bacteria (LAB) from the Alexandrian Mediterranean Seacoast, Egypt, with their possible exploitation in metal remediation. Lactobacillus plantarum MF042018 exhibited high degree of resistance, up to 500 and 100 ppm, to both nickel and chromium, respectively, with multiple antibiotic resistance (MAR) index above 0.5. In an attempt to improve chromium removal by L. plantarum MF042018, Plackett-Burman followed by Box-Behnken statistical designs were applied. An initial Cr 2+ concentration of 100 ppm and inoculum size of 3% presented the best conditions for the accumulation of chromium by L. plantarum MF042018. The study was also navigated to assess the biosorption capacity of L. plantarum MF042018, the maximum uptake capacity (q) of both Cd 2+ and pb 2+ was recorded at pH 2.0 and a temperature of 22 °C after 1 hr. The biosorption process of Cd 2+ and pb 2+ was well explained by the Langmuir isotherm model better than the Freundlich isotherm. Furthermore, the results revealed that the use of L. plantarum MF042018 is an effective tool for the treatment of hazardous metal-polluted battery-manufacturing effluent. Therefore, the present study implies that L. plantarum MF042018 can be applied as a promising biosorbent for the removal of heavy metals from industrial wasterwaters. As a consequence of disastrous anthropogenic activities, the discharge of hazardous heavy metal pose devastating threat to environmental safety and subsequently lead to severe concerns on human health worldwide 1. Nowadays, several approaches have been successfully developed to use magnetic nanoparticles (MNPs), such as magnetic chitosan/graphene oxide (MCGO) composite, and ultrasonic irradiation for the synthesis of metal organic frameworks (MOFs) for the removal of heavy metals from contaminated environments 2,3. In this context, the expansion of new technologies has led to the evolution of "Bioremediation" as a powerful alternative tool to reduce the adverse consequences of the tremendous accumulation of heavy metals 4. Bioremediation; using bacteria, fungi, yeast and algae, is an efficient, cost-effective and environmentally friendly strategy that has recently received great attention to tackle heavy metal contamination 5. Recently, the use of microorganisms especially fungi as potential biosorbents for the removal of heavy metals from industrial wastewater effluents has been extensively investigated 6-8. Lactic acid bacteria (LAB) are Gram-positive bacteria, that have gained Generally Recognized As Safe (GRAS) status by the US Food and Drug Administration (FDA) and have a strong record of safe application as probiotic supplements 9. Recently, several strains of LAB have generated much attention to their potential use in the removal of heavy metals for protection of human health 10-13. A considerable number ...

show abstract

“…Industrialization and mining actions, rapidly increases the heavy metals contamination in aquatic systems [25,44]. It's a well-known fact that even at very low concentration heavy metals are highly toxic to humans [14,15].…”

Section: Introductionmentioning

confidence: 99%

Biosorption of hexavalent chromium metal ions from an aqueous solution of leaves and bark of Cinnamomum verum via green route

et al. 2020

View full text Add to dashboard Cite

In present research work Cinnamomum verum leaves (CL) and barks (CB) are exploited to encounter their effectiveness against the concentration of hexavalent chromium (Cr +6 metal ions) through biosorption process. To achieve this goal optimal conditions were set and broken into various parts such as; doses of adsorbents, concentrations of adsorbates, variations in contact and stirring time (5-100 min), temperatures (10 °C to 50 °C) and pHs from acidic to basic range (1 to 12). Thermodynamic parameters were also applied to validate the assay, which shows that the process is endothermic with positive ∆H° values, while negative values of ∆G° proved the spontaneous nature of sorption. Moreover, Lagergren's kinetic equations were employed, which suggest that the observed reaction process followed the dynamics of pseudosecond order. Equilibrium adsorption isotherms namely Langmuir and Freundlich have been applied to study the adsorbate materials attraction towards Cr +6 metal ions. The determined adsorption capability, i.e. q e was found to be 11.33 and 26.85 mg/g acquired by CL and CB at 30 °C and 40 °C, respectively. FT-IR spectrums of loaded and unloaded metal ions were taken, which confirmed the participated functional groups of herbal plants in biosorption process. EDX analysis revealed the presence of Cr +6 metal ions after biosorption process. Furthermore, irregularities on surface of adsorbent material obtained from SEM images have provided more support to results for validation.

show abstract

A GO-CS@MOF [Zn(BDC)(DMF)] material for the adsorption of chromium(VI) ions from aqueous solution

Cited by 131 publications

References 117 publications

The development of a ternary nanocomposite for the removal of Cr(vi) ions from aqueous solutions

The development of a ternary nanocomposite for the removal of Cr(vi) ions from aqueous solutions

Assessment of the heavy metal bioremediation efficiency of the novel marine lactic acid bacterium, Lactobacillus plantarum MF042018

Biosorption of hexavalent chromium metal ions from an aqueous solution of leaves and bark of Cinnamomum verum via green route

Contact Info

Product

Resources

About