Košík

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  1. SYS0248443
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    $a 10.1016/j.clay.2017.03.012 $2 DOI
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    $a 20170712a2017 m y slo 03 ba
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    $a Mechanochemically activated saponite as materials for Cu2+ and Ni2+ removal from aqueous solutions $f L. Petra, P. Billik, Z. Melichová, P. Komadel
    330
      
    $a Saponites are nanosized layered aluminosilicates from the smectite group of clay minerals, which can be further functionalized to prepare low-cost materials for water purification. Mechanochemical activation of saponite was achieved by high-energy grinding in a planetary ball mill. X-ray diffraction, infrared spectroscopy, scanning electron microscopy, thermal analysis, and the determination of cation-exchange capacity and specific surface area were used to characterize parent and functionalized solids. Prepared adsorbents were used for Cu2+ and Ni2+ removal from aqueous solutions. Compared to the untreated sample, activated saponites had significantly increased capacity to take away metal cations. The equilibrium data showed the maximum of Cu2+ and Ni2+ uptake of 295 and 129 mg/g, respectively. In comparison with the pristine material, the measured values increased by 764% and 170% for Cu2+ and Ni2+ respectively. The formation of reactive Mg(OH)(2) as the saponite decomposition product was also discussed. (C) 2017 Elsevier B.V. All rights reserved.
    463
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    $1 001 umb_un_cat*0293219 $1 011 $a 0169-1317 $1 200 1 $a Applied Clay Science $v Vol. 143 (2017), pp. 22-28 $1 210 $a Amsterdam $c Elsevier B.V. $d 2017
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    $3 umb_un_auth*0261158 $a heavy metal adsorption
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    $3 umb_un_auth*0142849 $a ílové minerály $X clay minerals
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    $3 umb_un_auth*0174001 $a adsorbenty
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    $3 umb_un_auth*0261159 $a mechanochémia $X mechanochemistry
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    $3 umb_un_auth*0261160 $a atómová absorpčná spektroskopia $X atomic absorption spectroscopy
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    $n 546 $a Anorganická chémia
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    $3 umb_un_auth*0261161 $a Petra $b Lukáš $9 30 $4 070
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    $3 umb_un_auth*0261162 $a Billik $b Peter $4 070 $9 30
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    $3 umb_un_auth*0002856 $a Melichová $b Zuzana $p UMBFP08 $4 070 $f 1966- $9 20 $T Katedra chémie
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    $3 umb_un_auth*0206412 $a Komadel $b Peter $4 070 $9 20
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  2. SYS0307857
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    20240121192755.8
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    $a 000779583400010 $2 WOS CC. SCIE
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    $a 2-s2.0-85130368118 $2 SCOPUS
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    $a 10.26471/cjees/2022/017/208 $2 DOI
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    $a biblio/476379 $2 CREPC2
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    $a 20220503d2022 m y slo 03 ba
    101
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    $a eng
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    1-
    $a Mercury accumulation in wild mushrooms at abandoned Hg-deposit Malachov (Slovakia) $f Peter Andráš, Pavol Midula ... [et al.]
    330
      
    $a The aim of the presented article was to determine the Hg content in the fruiting bodies of 13 generally consumed mushroom species (Boletus reticulatus, Clitocybe nebularis, Lactarius deliciosus, Macrolepiota procera, Russula spp., Suillus grevillei, Tricholoma spp.) growing at the area of abandoned mercury deposit Malachov. The Hg concentrations were analyzed by thermal decomposition-gold amalgamation atomic absorption spectroscopy, using AMA-254 Advanced Mercury Analyzer. The Hg concentrations in soil varied widely (ranging from 0.01 to 2.44mg·kg-1), furthermore, they were particularly depended on the mushroom species. The fruiting bodies of Russula ochroleuca contained the highest concentrations of Hg (up to 16.69mg·kg-1). The lowest concentrations were detected in Russula aeruginea (from 0.04 to 0.06 in stipe stems and from 0.05 to 0.06mg·kg-1 in pileus) and in Russula vesca (0.05 in stipe stems; 0.09mg·kg-1 in pileus). Mercury is preferentially accumulated in the mushroom pileus (ranging from 0.05 in Russula vesca to 16.69mg·kg-1 in Russula ochroleuca). The bioconcentration factor was calculated for the rate of the Hg content in soil substrate vs. its concentration in the mushroom pileus (ranging from 0.03 to 29.22). The results indicate that some investigated mushroom species can be referred as Hg excluders (e.g. Russula vesca) whereas some other species as accumulators (e.g. Russula ochroleuca or Tricholoma portentosum). The obtained results were compared with the Government Decrees of Slovak Republic, showing that the substantial part of the studied mushroom species exceed the legal tolerance limit (0.25 mg kg-1) suggested for Hg in plant food and therefore they can be considered as inappropriate for human consumption.
    463
    -1
    $1 001 umb_un_cat*0306501 $1 011 $a 1842-4090 $1 011 $a 1844-489X $1 200 1 $a Carpathian journal of earth and environmental sciences $v Vol. 17, no. 1 (2022), pp. 143-147 $1 210 $a Baia Mare $c North University of Baia Mare $d 2022
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    $3 umb_un_auth*0042121 $a huby $X mushrooms $Y Fungi
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    $3 umb_un_auth*0042094 $a ortuť
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    $3 umb_un_auth*0221274 $a akumulácia koreňov
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    $3 umb_un_auth*0000387 $a sklo $X glass
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    $3 umb_un_auth*0088895 $a amalgamácia rúd
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    $3 umb_un_auth*0261160 $a atómová absorpčná spektroskopia $X atomic absorption spectroscopy
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    $3 umb_un_auth*0273282 $a články $X journal articles
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    $3 umb_un_auth*0242401 $a Midula $b Pavol $f 1989- $p UMBFP04 $9 10 $4 070 $T Katedra životného prostredia
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    $3 umb_un_auth*0290931 $a Grofčík $b Ján $4 070 $9 10
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    $3 umb_un_auth*0172645 $a Dirner $b Vojtech $f 1953- $p UMBFP04 $9 10 $4 070 $T Katedra životného prostredia
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    $3 umb_un_auth*0105708 $a Rusko $b Miroslav $f 1953- $9 10 $4 070
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    $3 umb_un_auth*0251506 $a Dadová $b Jana $4 070 $9 10
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    $3 umb_un_auth*0004164 $a Turisová $b Ingrid $f 1965- $g Ondrejová $p UMBFP09 $9 10 $4 070 $T Katedra biológie a ekológie
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    $u http://www.cjees.ro/viewTopic.php?topicId=937 $a Link na zdrojový dokument
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  3.  

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