Study of the features of sorption of metal ions from sea water on clinoptilolite from different deposits

1988 ◽  
Vol 37 (11) ◽  
pp. 2215-2219
Author(s):  
R. Kh. Khamizov ◽  
T. Yu. Butenko ◽  
L. V. Bronov ◽  
V. V. Skovyra ◽  
V. A. Novikova
Keyword(s):  
Metal Ions ◽  
Sea Water

Eco-design of nanostructured cellulose sponges for sea-water decontamination from heavy metal ions

2020 ◽  
Vol 246 ◽  
pp. 119009 ◽  
Author(s):  
Andrea Fiorati ◽  
Giacomo Grassi ◽  
Aurora Graziano ◽  
Giulia Liberatori ◽  
Nadia Pastori ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Sea Water ◽  
Water Decontamination

scholarly journals Effect of Nobel Metal Ions on the Synthesis of Metal Nanoclusters for Selective Detection of Various Heavy Metals

2020 ◽  
Author(s):  
AMIT NAIN
Keyword(s):  
Metal Ions ◽  
Photoelectron Spectroscopy ◽  
Sea Water ◽  
Metal Nanoclusters ◽  
Average Life ◽  
Metal Core ◽  
X Ray ◽  
Metal Metal ◽  
Pl Quenching

In this study, effect of noble metal ions (Au, Ag and Cu) on the synthesis of metal nanoclusters (MNCs) have been investigated. Through heating at 70ºC, TSA/BSA–Au, –Ag and –Cu NCs were separately prepared from Au3+, Ag+ and Cu2+ respectively in the presence of bovine serum albumin (BSA) and thiosalicylic acid (TSA). They exhibit photoluminescence (PL) at 700, 624 and 430 nm, with an average life times of 1500, 100 and 11.71 ns, respectively, when excited at 350 nm. X–ray photoelectron spectroscopy (XPS) data support the presence of metal core (M0) and metal–thiolate shell (Mn–SRm) in each of the TSA/BSA–Metal nanoclusters (MNCs). Spectroscopic measurements reveal the formation of Au32–SR, Ag9–SR and (Cu4–Cu13)–SR species in the TSA/BSA–Au, –Ag and –Cu NCs respectively. Through PL quenching of the TSA/BSA–Au, –Ag and –Cu NCs, they have been used separately for quantitation of Hg2+, As3+ and Cr6+ , with linear ranges of 1400, 418, and 40400 nM and limits of detection (LODs) of 0.25, 2.34 and 3.54 nM, respectively. The PL quenching is mainly due to aggregation of the MNCs via metal–metal or metal–thiol interaction. The stable TSA/BSA–Au, –Ag and –Cu NCs have been employed separately for the determination of the concentrations of Hg2+, As3+ and Cr6+ ions in the spiked sea water samples, showing advantages of simplicity, rapidity, high selectivity, and sensitivity.

scholarly journals Effects of Magnetic Fields and Metal Ions (Cu, Pb, Al and Fe) on Growth of Anoxygenic Photosynthetic Bacteria (APB)

Biospecies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 42-50 ◽  
Author(s):  
Sumardi ◽  
Salman Farisi Rochmah Agustrina ◽  
Yunita
Keyword(s):  
Magnetic Fields ◽  
Metal Ions ◽  
Photosynthetic Bacteria ◽  
Sea Water ◽  
Anoxygenic Photosynthetic Bacteria

Bakteri Fotosintetik Anoksigenik (BFA) memiliki sifat yang menguntungkan diantaranya sebagai kandidat probiotik, biofertilizer, agen bioremediasi dan mampu menurunkan konsetrasi H2S di perairan. Namun demikian BFA pun memiliki kelemahan yaitu pertumbuhannya lambat.  Interaksi ion logam dan paparan medan magnet diketahui dapat meningkatkan aktivitas enzim dan meningkatkan laju pertumbuhan. Penelitian ini bertujuan untuk mengetahui pengaruh ion logam dan paparan medan magnet terhadap pertumbuhan BFA. Isolat BFA AM hasil isolasi dari akar mangrove diuji pengaruhnya terhadap ion logam dalam media sea water complete (SWC).  Ion logam yang diujikan adalah Cu, Pb, Al dan Fe dengan konsentrasi yang berbeda.  Ion logam dipapar medan magnet 0,2 mT selama 10 menit sebelum ditambahkan ke media. Hasil penghitungan sel menunjukkan bahwa ion logam baik yang dipapar medan magnet dan tanpa dipapar medan magnet tidak berpengaruh terhadap pertumbuhan isolat BFA AM, namun ion logam dalam media SWC mempengaruhi pola spektra isolat BFA AM.

Kinetics of the sorption of metal ions from sea water on clinoptilolite

1990 ◽  
Vol 39 (2) ◽  
pp. 213-216
Author(s):  
R. Kh. Khamizov ◽  
T. Yu. Butenko ◽  
M. L. Veber ◽  
E. V. Zaitseva
Keyword(s):  
Metal Ions ◽  
Sea Water ◽  
Kinetics Of

Evaluation of the possibility of contamination of sea water by metal ions present in fuel oil

Fuel ◽  
2006 ◽  
Vol 85 (14-15) ◽  
pp. 2162-2170 ◽  
Author(s):  
C.M.M.A. Portella ◽  
M.L.B. Tristão ◽  
J. Felcman
Keyword(s):  
Metal Ions ◽  
Sea Water ◽  
Fuel Oil
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