Rapid removal of boron from environmental water samples using magnetic graphene oxide: optimized by central composite design

2019 ◽  
Vol 153 ◽  
pp. 65-75 ◽  
Author(s):  
Nour Al-Afy ◽  
Hassan Sereshti
Keyword(s):  
Graphene Oxide ◽  
Central Composite Design ◽  
Water Samples ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Magnetic Graphene Oxide ◽  
Magnetic Graphene ◽  
Rapid Removal ◽  
Central Composite

MAGNETIC GRAPHENE OXIDE AS ADSORBENT FOR THE REMOVAL OF LEAD(II) FROM WATER SAMPLES

2016 ◽  
Vol 78 (3-2) ◽  
Author(s):  
Hamid Rashidi Nodeh ◽  
Wan Aini Wan Ibrahim ◽  
Mohd Marsin Sanagi
Keyword(s):  
Graphene Oxide ◽  
Adsorption Isotherm ◽  
Water Samples ◽  
Freundlich Isotherm ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Maximum Adsorption Capacity ◽  
Solution Ph ◽  
Magnetic Graphene Oxide ◽  
Flame Atomic Absorption

Magnetic Fe3O4 nanoparticles were prepared on graphene oxide (Fe3O4/GO) in situ in a one step process. The obtained Fe3O4/GO was used as an adsorbent for the removal for Pb(II) from environmental water samples prior to flame atomic absorption spectroscopy measurement. The adsorption procedure was optimized as follows: 60 min adsorption time, 50 mL sample volume, solution pH 4.5, and 25 mg adsorbent dosage. Under the optimum conditions, the adsorption efficiency obtained was greater than 75% (C = 50 mg L-1). The adsorption isotherm of Fe3O4@GO magnetic adsorbent was studied for Pb(II) adsorption using two isotherm adsorption models namely Langmuir and Freundlich. The adsorption isotherm data fits well with Langmuir isotherm (R2 = 0.9988) rather than with Freundlich isotherm. The maximum adsorption capacity (qm) obtained was 86.2 mg g-1. The results signified that the prepared Fe3O4/GO nanocomposite has a great adsorptive ability towards the Pb(II) from environmental water samples.

scholarly journals Graphene Quantum Dots Sensor for the Determination of Graphene Oxide in Environmental Water Samples

2014 ◽  
Vol 86 (24) ◽  
pp. 12279-12284 ◽  
Author(s):  
Sandra Benítez-Martínez ◽  
Ángela Inmaculada López-Lorente ◽  
Miguel Valcárcel
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Water Samples ◽  
Graphene Quantum Dots ◽  
Environmental Water ◽  
Environmental Water Samples

Rapid Removal and Separation of Iron(II) and Manganese(II) from Micropolluted Water Using Magnetic Graphene Oxide

2014 ◽  
Vol 6 (12) ◽  
pp. 9871-9880 ◽  
Author(s):  
Han Yan ◽  
Haijiang Li ◽  
Xue Tao ◽  
Kun Li ◽  
Hu Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Magnetic Graphene Oxide ◽  
Magnetic Graphene ◽  
Rapid Removal
Sign in / Sign up

Export Citation Format

Share Document