Coliform bacteria immobilized on titanium dioxide nanoparticles as a biosorbent for trace lead preconcentration followed by atomic absorption spectrometric determination

Bakırcıoğlu, Dilek; Uçar, Gökhan; Kurtulus, Yasemin Bakircioglu

doi:10.1007/s00604-011-0630-3

Cited by 19 publications

(10 citation statements)

References 30 publications

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“…The use of biological materials for effective removal and preconcentration of heavy metals from contaminated waters has emerged as a potential alternative method to conventional treatment techniques. Of all the preconcentration methods, biosorption by microorganisms immobilized on solid support seems to be the most effective preconcentration methods [5,[19][20][21][22][23].…”

Section: +2mentioning

confidence: 99%

Biosorption of Cd+2, Cu+2, and Ni+2 Ions by a Thermophilic Haloalkalitolerant Bacterial Strain (KG9) Immobilized on Amberlite XAD-4

Alkan¹,

Güven²,

Güven³

et al. 2015

Pol. J. Environ. Stud.

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Direct analysis of trace levels of metal ions in environmental and biological samples is rather difficult using conventional analytical techniques such as flame atomic absorption spectrometry (FAAS) because of very low concentrations of these metal ions and matrix interferences [1,2]. However, this technique also presents desirable characteristics such as operational facilities, good selectivity, and low cost. In spite of high sensitivities obtained by ICP-OES and ICP-MS, these techniques are relatively expensive and present limitations related to the concomitants such as high dissolved solid contents of samples [3,4]. Therefore, sample preconcentration is becoming an essential treatment step before flame atomic absorption determination [5,6].The widely used analytical techniques for the separation and preconcentration of metal ions include solid-phase extraction [7][8][9][10][11][12], liquid-liquid extraction [13,14], coprecipitation [15], ion-exchange [16,17], and chelating resins [18]. Solid-phase extraction of heavy metal ions for prePol. J. Environ. Stud. Vol. 24, No. 5 (2015), 1903-1910 Original Research . The proposed procedure was applied for the determination of metal ions in river water, drinking water, and mushrooms. The accuracy of the developed procedure was tested by analyzing NRCC-SLRS4 riverine water and SRM1570a spinach leaves as the certified reference materials. Biosorption of Cd

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Section: +2mentioning

confidence: 99%

Biosorption of Cd+2, Cu+2, and Ni+2 Ions by a Thermophilic Haloalkalitolerant Bacterial Strain (KG9) Immobilized on Amberlite XAD-4

Alkan¹,

Güven²,

Güven³

et al. 2015

Pol. J. Environ. Stud.

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“…Lead (Pb) has also been removed using a chromatographic column filled with biomass of this same fungal species immobilized on TiO 2 nanoparticles and using hydrochloric acid (HCl) as eluent [90]. Dead coliform bacteria have been immobilized on nanoparticles of titanium oxide (TiO 2 ) for Pb preconcentration which was then analyzed using a flow injection analysis system coupled to a flame atomic absorption spectrometer [91]. The biosorption of aluminum (Al 3+ ) and cadmium (Cd 2+ ) ions over an exopolysaccharide obtained from the bacterium Lactobacillus rhamnosus was possible due to the presence of hidroxyl (▬OH) and carboxyl (▬COOH) groups that facilitated a complex formation with the target analytes [92].…”

Section: Remediation Based On Nanobiotechnologymentioning

confidence: 99%

Low Dimensional Nanostructures: Measurement and Remediation Technologies Applied to Trace Heavy Metals in Water

García-Betancourt¹,

Jiménez²,

González-Hodges³

et al. 2021

Trace Metals in the Environment - New Approaches and Recent Advances

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A nanostructure is a system in which at least one external dimension is in the nanoscale, it means a length range smaller than 100 nm. Nanostructures can be natural or synthetic and determine the physicochemical properties of bulk materials. Due to their high surface area and surface reactivity, they can be an efficient alternative to remove contaminants from the environment, including heavy metals from water. Heavy metals like mercury (Hg), cadmium (Cd), arsenic (As), lead (Pb), and chromium (Cr) are highly poisonous and hazardous to human health due to their non-biodegradability and highly toxic properties, even at trace levels. Thus, efficient, low-cost, and environmentally friendly methodologies of removal are needed. These needs for removal require fast detection, quantification, and remediation to have heavy metal-free water. Nanostructures emerged as a powerful tool capable to detect, quantify, and remove these contaminants. This book chapter summarizes some examples of nanostructures that have been used on the detection, quantification, and remediation of heavy metals in water.

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“…In recent years, researches have been focused on nano-carriers for biomass immobilization like TiO 2 [77][78][79], SiO 2 [80], multiwalled carbon nanotubes [81,82] and nanodiamond [83]. In recent years, researches have been focused on nano-carriers for biomass immobilization like TiO 2 [77][78][79], SiO 2 [80], multiwalled carbon nanotubes [81,82] and nanodiamond [83].…”

Section: Immobilized Microbial Biomass Used In Solid Phase Extractionmentioning

confidence: 99%

“…Immobilized microbial biomass was successfully used as a sorbent in SPE, where the combination of pre-concentration and metal ion separation by instrumental analysis (like flame atomic absorption spectroscopy-FAAS; cold vapor-atomic absorption spectrophotometry-CVAAS; inductively coupled plasma atomic emission spectroscopy -ICP-AES) allowed the determination of very low concentrations (in some cases several orders of magnitude lower than the detection limits of the direct method). In recent years, researches have been focused on nano-carriers for biomass immobilization like TiO 2 [77][78][79], SiO 2 [80], multiwalled carbon nanotubes [81,82] and nanodiamond [83]. They have been used as solid supports for biomasses, as a result highest preconcentration factors and lowest limit of detection were reached.…”

Section: Immobilized Microbial Biomass Used In Solid Phase Extractionmentioning

confidence: 99%

Immobilized microbial biosorbents for heavy metals removal

Velkova

Kirova

Stoytcheva

et al. 2018

Engineering in Life Sciences

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Intensive industrial and urban growth has led to the release of increasing amounts of environmental pollutants. Contamination by metals, in particular, deserves special attention due to their toxicity and potential to bioaccumulate via the food chain. Conventional techniques for the removal of toxic metals, radionuclides and precious metals from wastewater all have a number of drawbacks, such as incomplete metal extraction, high cost and risk of generating hazardous by‐products. Biosorption is a cost‐effective and environment‐friendly technology, an alternative to conventional wastewater treatment methods. Biosorption is a metabolically independent process, in which dead microbial biomass is capable of removal and concentrating metal ions from aqueous solutions. Free microbial biosorbents are of small size and low density, insufficient mechanical stability and low elasticity, which causes problems with metal ion desorption, separation of the sorbent from the medium and its regeneration. Hence, the possibilities for the implementation of continuous biosorbent processes for metal removal in flow‐type reactor systems are reduced and the practical application of biosorption in industrial conditions is limited. By immobilizing microbial biomass on suitable carriers the disadvantages of free biosorbents are eliminated and more opportunities for practical use of biosorption become available. This review examines different immobilization techniques and carriers, certain basic features and possibilities of using immobilized microbial biosorbents for the removal and concentration of metals from aqueous solutions.

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Coliform bacteria immobilized on titanium dioxide nanoparticles as a biosorbent for trace lead preconcentration followed by atomic absorption spectrometric determination

Cited by 19 publications

References 30 publications

Biosorption of Cd+2, Cu+2, and Ni+2 Ions by a Thermophilic Haloalkalitolerant Bacterial Strain (KG9) Immobilized on Amberlite XAD-4

Biosorption of Cd+2, Cu+2, and Ni+2 Ions by a Thermophilic Haloalkalitolerant Bacterial Strain (KG9) Immobilized on Amberlite XAD-4

Low Dimensional Nanostructures: Measurement and Remediation Technologies Applied to Trace Heavy Metals in Water

Immobilized microbial biosorbents for heavy metals removal

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