Enhanced sorption of cadmium ion on highly ordered nanoporous carbon by using different surfactant modification

Yazdankhah, A.; Moradi, S.E.; Amirmahmoodi, S.; Abbasian, Mojtaba; Shoja, Solmaz Esmaeily

doi:10.1016/j.micromeso.2010.04.012

Cited by 31 publications

(18 citation statements)

References 22 publications

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“…It may also combine with ammonia and cyanide to form Cd(NH 3 ) 6 −4 and Cd(CN) 4 −2 , respectively. Various industrial processes such as mining, electroplating, stabilizing plastics, manufacturing batteries, alloy, pigment, cement, fossil fuel combustion, municipal and sewage sludge incineration and high phosphate fertilizers are responsible for the release of huge amount of Cd 2+ in the environment (Klaassen et al 2009 ; Yazdankhah et al 2010 ; Liu et al 2013 ). According to an estimation 30,000 tons Cd 2+ is released in our environment annually (Nriagu and Pacyna 1988 ).…”

Section: Introductionmentioning

confidence: 99%

Cadmium resistance and uptake by bacterium, Salmonella enterica 43C, isolated from industrial effluent

et al. 2016

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Cadmium resistant bacterium, isolated from industrial wastewater, was characterized as Salmonella enterica 43C on the basis of biochemical and 16S rRNA ribotyping. It is first ever reported S. enterica 43C bared extreme resistance against heavy metal consortia in order of Pb2+>Cd2+>As3+>Zn2+>Cr6+>Cu2+>Hg2+. Cd2+ stress altered growth pattern of the bacterium in time dependent manner. It could remove nearly 57 % Cd2+ from the medium over a period of 8 days. Kinetic and thermodynamic studies based on various adsorption isotherm models (Langmuir and Freundlich) depicted the Cd2+ biosorption as spontaneous, feasible and endothermic in nature. Interestingly, the bacterium followed pseudo first order kinetics, making it a good biosorbent for heavy metal ions. The S. enterica 43C Cd2+ processivity was significantly influenced by temperature, pH, initial Cd2+ concentration, biomass dosage and co-metal ions. FTIR analysis of the bacterium revealed the active participation of amide and carbonyl moieties in Cd2+ adsorption confirmed by EDX analysis. Electron micrographs beckoned further surface adsorption and increased bacterial size due to intracellular Cd2+ accumulation. An overwhelming increase in glutathione and other non-protein thiols levels played a significant role in thriving oxidative stress generated by metal cations. Presence of metallothionein clearly depicted the role of such proteins in bacterial metal resistance mechanism. The present study results clearly declare S. enterica 43C a suitable candidate for green chemistry to bioremediate environmental Cd2+.Electronic supplementary materialThe online version of this article (doi:10.1186/s13568-016-0225-9) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Cadmium resistance and uptake by bacterium, Salmonella enterica 43C, isolated from industrial effluent

et al. 2016

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“…Though it is found abundantly in earth crust and commonly associated with ores of zinc, lead, and copper (Cheng et al 2014), its increasingly high concentration in our environment is due to human activities (Maynaud et al 2014) such as mining, electroplating, stabilizing plastics, manufacturing batteries, alloy, pigment, and high phosphate fertilizers (Klaassen et al 2009;Yazdankhah et al 2010;Zeng et al 2013). It poses a serious threat to human health as it gains entry into the human food chain (Xu et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…It poses a serious threat to human health as it gains entry into the human food chain (Xu et al 2014). It is responsible for kidney damage, osteoporosis and fractures, anemia, eosinophilia, anosmia, apoptosis, oncogenes activation, Itai-Itai disease, and chronic pulmonary problems (Waisberg et al 2003;Zeng et al 2009;Yazdankhah et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Cadmium resistance mechanism in Escherichia coli P4 and its potential use to bioremediate environmental cadmium

Khan

Nisar

Hussain

et al. 2015

Appl Microbiol Biotechnol

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A cadmium-resistant bacterium was isolated from industrial wastewater and identified as Escherichia coli (dubbed as P4) on the basis of morphological, biochemical tests and 16S rRNA ribotyping. It showed optimum growth at 30 °C and pH 7. E. coli P4 found to resist Cd(+2) (10.6 mM) as well as Zn(+2) (4.4 mM), Pb(+2) (17 mM), Cu(+2) (3.5 mM), Cr(+6) (4.4 mM), As(+2) (10.6 mM), and Hg(+2) (0.53 mM). It could remove 18.8, 37, and 56 % Cd(+2) from aqueous medium after 48, 96, and 144 h, respectively. Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and Energy-dispersive X-ray (EDX) analysis also confirmed the biosorption of Cd(+2) by E. coli P4. However, temperature and pH were found to be the most critical factors in biosorption of Cd(+2) by E. coli P4. Cd(+2) stress altered E. coli P4 cell physiology analyzed by measuring glutathione (GSH) and non-protein thiol (cysteine) levels which were increased up to 130 and 48 %, respectively. Quantitative real-time polymerase chain reaction (qRT-PCR) showed alteration in the expression levels of ftsZ, mutS, clpB, ef-tu, and dnaK genes in the presence of Cd(+2). Total protein profiles of E. coli P4 in the absence and presence of Cd(+2) were compared by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), which showed remarkable difference in the banding pattern. czcB gene, a component of czcCBA operon, was amplified from genomic DNA which suggested the chromosomal-borne Cd(+2) resistance in E. coli P4. Furthermore, it harbors smtAB gene which plays a significant role in Cd(+2) resistance.

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“…The most effective technique for the removal of environmentally hazardous material is adsorption process. As it is easy to remove the adsorbent from aqueous media after treatment, adsorption technique is generally considered to be an easy method (Yazdankhah et al 2010). Adsorbents with high surface area are undoubtedly more efficient and have been the topic of the review in this area (Selvam et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Adsorption studies of Pb(II) and Cu(II) ions on mesoporous carbon nitride functionalized with melamine-based dendrimer amine

Anbia

Haqshenas

2015

Int. J. Environ. Sci. Technol.

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Mesoporous carbon nitride functionalized with melamine-based dendrimer amine has been developed. It has been characterized using N 2 adsorption-desorption isotherm, thermogravimetric analysis, Fourier transform spectroscopy and small-angle X-ray scattering techniques. The pore diameter is centered at 4.74 nm with a relatively high BET surface area of 102.2 m 2 /g with a pore volume of 0.12 cm 3 /g. Thermogravimetric analysis curves show that the samples (mesoporous carbon nitride and mesoporous carbon nitride functionalized with melamine-based dendrimer amine) have high thermal stability compared to the earlier species. Batch adsorption experiments were conducted to study the effect of adsorbent dose, temperature, contact time and solution pH for the removal of Pb(II) from aqueous systems. The Pb(II) and Cu(II) removal by mesoporous carbon nitride functionalized with melaminebased dendrimer amine was found to be 196.34 and 199.75 mg/g, respectively. The sorption data are correlated better with the Langmuir adsorption isotherm than Freundlich isotherm. The kinetic analysis has revealed that the overall adsorption process is successfully fitted in the pseudo-second-order kinetic model.

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Enhanced sorption of cadmium ion on highly ordered nanoporous carbon by using different surfactant modification

Cited by 31 publications

References 22 publications

Cadmium resistance and uptake by bacterium, Salmonella enterica 43C, isolated from industrial effluent

Cadmium resistance and uptake by bacterium, Salmonella enterica 43C, isolated from industrial effluent

Cadmium resistance mechanism in Escherichia coli P4 and its potential use to bioremediate environmental cadmium

Adsorption studies of Pb(II) and Cu(II) ions on mesoporous carbon nitride functionalized with melamine-based dendrimer amine

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