Production of Hydroxyapatite‐Based Adsorbent for the removal of cobalt ions from the aqueous solution

2021 ◽  
Author(s):  
Armin Vahdat ◽  
Behrooz Ghasemi ◽  
Mardali Yousefpour
Keyword(s):  
Aqueous Solution ◽  
Cobalt Ions

scholarly journals CHITOSAN-TEMPLATED LIGHTWEIGHT SPINEL CoAl2O4 NANOFIBRIL AEROGELS

2018 ◽  
Vol 56 (1A) ◽  
pp. 135
Author(s):  
Chau The Lieu Trang
Keyword(s):  
Aqueous Solution ◽  
Aluminum Hydroxide ◽  
Water Soluble ◽  
Metal Hydroxides ◽  
Cobalt Ions ◽  
Spider Web ◽  
Magnetic Ceramics ◽  
Aluminum Ions ◽  
Soluble Aluminum ◽  
Mixed Metal Hydroxides

We present lightweight macro-mesoporous spinel CoAl2O4 nanostructured aerogels derived from water-soluble aluminum-chitosan complexes. Chitosan nanofibrils interact with aluminum ions to swell into hydrogels. The aluminum-induced swelling is extended to dissolve the hydrogels in water to form a homogeneous aluminum-chitosan aqueous solution. The addition of cobalt ions in the aluminum-chitosan liquids which are solidified by lyophilization to generate cotton-like aerogel composites. Uniform incorporation of cobalt-aluminum hydroxide ions onto chitosan leads nanofibrils to serve as a hierarchical template to support mixed metal hydroxides in the aerogel composites. We investigated the thermal removal of chitosan template in the composites to obtain spinel CoAl2O4 aerogels that truly replicate spider web-like fibrillar networks of chitosan template. Enlarged porosity, high crystallinity, and lightweight make the CoAl2O4 aerogels useful as a colorful nano-pigment for magnetic ceramics.

Dioxygen-mediated oxidation of hydroquinone with cobalt ions in a bicarbonate aqueous solution for the production of active radicals

2016 ◽  
Vol 40 (6) ◽  
pp. 5562-5567
Author(s):  
Dajie Zhang ◽  
Wei Shi ◽  
Qiang Cheng ◽  
Xiaoxia Li ◽  
Aihua Xu
Keyword(s):  
Aqueous Solution ◽  
Hydroxyl Radicals ◽  
High Efficiency ◽  
Cobalt Ions ◽  
Mediated Oxidation

Cobalt(ii) ions exhibit high efficiency for hydroquinone oxidation in HCO3− solution with O2 to produce hydroxyl radicals.

scholarly journals Zinc, nickel, and cobalt ions removal from aqueous solution and plating plant wastewater by modified Aspergillus flavus biomass: A dataset

Data in Brief ◽  
2017 ◽  
Vol 12 ◽  
pp. 485-492 ◽  
Author(s):  
Rauf Foroutan ◽  
Hossein Esmaeili ◽  
Seyedehmasomeh Derakhshandeh Rishehri ◽  
Farzaneh Sadeghzadeh ◽  
Seyedehroghayeh Mirahmadi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aspergillus Flavus ◽  
Cobalt Ions ◽  
Plating Plant ◽  
Zinc Nickel

Kinetic, equilibrium and thermodynamic studies for adsorptive removal of cobalt ions by rice husk from aqueous solution

2020 ◽  
Vol 204 ◽  
pp. 285-296
Author(s):  
Shagufta Zafar ◽  
Muhammad Imran Khan ◽  
Hafeez ur Rehman ◽  
Javier Fernandez-Garcia ◽  
Shabnam Shahida ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Rice Husk ◽  
Thermodynamic Studies ◽  
Cobalt Ions ◽  
Adsorptive Removal ◽  
Kinetic Equilibrium

Removal of cobalt ions from aqueous solution by forward osmosis

2017 ◽  
Vol 177 ◽  
pp. 8-20 ◽  
Author(s):  
Xiaojing Liu ◽  
Jinling Wu ◽  
Chun Liu ◽  
Jianlong Wang
Keyword(s):  
Aqueous Solution ◽  
Forward Osmosis ◽  
Cobalt Ions

scholarly journals On the Behavior of Cobalt Ions in the Aqueous Solution of Cobalt Nitrate.

1994 ◽  
Vol 110 (9) ◽  
pp. 695-699
Author(s):  
Kuniomi WASE ◽  
Yosuke KISHI
Keyword(s):  
Aqueous Solution ◽  
Cobalt Nitrate ◽  
Cobalt Ions

scholarly journals An economically viable method for the removal of cobalt ions from aqueous solution using raw and modified rice straw

HBRC Journal ◽  
2018 ◽  
Vol 14 (3) ◽  
pp. 255-262 ◽  
Author(s):  
A.A. Swelam ◽  
M.B. Awad ◽  
A.M.A. Salem ◽  
A.S. El-Feky
Keyword(s):  
Aqueous Solution ◽  
Rice Straw ◽  
Cobalt Ions ◽  
Viable Method

Feasibility Analysis of Electrodeposited Cu-W-Co Alloys

2014 ◽  
Vol 881-883 ◽  
pp. 702-707 ◽  
Author(s):  
Yuan Hui Li ◽  
Zhong Cheng Guo ◽  
Bi Fang Huang ◽  
Hui Huang
Keyword(s):  
Aqueous Solution ◽  
Copper Alloys ◽  
Electrical Contact ◽  
Copper Matrix ◽  
Feasibility Analysis ◽  
Cobalt Ions ◽  
Contact Materials ◽  
Co Alloys ◽  
Contact Field ◽  
Theory And Experiment

Electrodeposited environmental and energy-saving electrodeposited copper alloys materials without silver element will be one of the hotspots on the exploitation of the copper matrix electrical contact field. Theoretically expression of Cu, W, Co and Cu-W-Co alloys electrodeposition possibility is thermodynamically analyzed by the potential-pH plots of Cu-H2O,Co-H2O and W-H2O at normal temperature. It is found that Cu, Co can be deposited together in Cu2+,Co2+aqueous solution. Cu-W isn’t deposited from it’s Cu2+,WO42-aqueous solution, only if Co-W induced deposition under the cobalt ions’ circumstances. So, It is possible that Cu-W-Co alloys are prepared from Cu2+,Co2+,WO42-aqueous solution by the electrodeposition in the theory and experiment, which will be new method and theory for Cu-W-Co serial contact materials’ preparation.

Removal of cobalt ions from aqueous solution by an amination graphene oxide nanocomposite

2014 ◽  
Vol 270 ◽  
pp. 1-10 ◽  
Author(s):  
Fang Fang ◽  
Lingtao Kong ◽  
Jiarui Huang ◽  
Shibiao Wu ◽  
Kaisheng Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Cobalt Ions

scholarly journals Adsorption Capabilities of Activated Carbon Derived from Detarium microcarpum Seeds in Removing Co2+ and Pb2+ from Wastewater

2020 ◽  
pp. 167-179
Author(s):  
Ishaq Yahaya Lawan ◽  
Shinggu D. Yamta ◽  
Abdurrahman Hudu ◽  
Kolo Alhaji Madu ◽  
Adamu Mohammad ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Metal Ion ◽  
Adsorption Process ◽  
Ion Concentration ◽  
Adsorption Efficiency ◽  
Cobalt Ions ◽  
Initial Concentration ◽  
Detarium Microcarpum ◽  
Percentage Removal

This study was carried out to evaluate the efficiency of metals (Pb and Co) removal from solution using Detarium microcarpum seeds as adsorbent. The effect of initial concentration and adsorbent dosage on the adsorption process of these metals were studied, the percentage removal of these metals increased with increased in weight (0.5 -2.5g) in 50ml of the solution and the adsorption efficiency increased with increasing initial metal ion concentration (0.01-0.05 moldm−3). The percentage removal obtained for Lead and Cobalt were compared. The result of adsorption were fitted to Langmuir models and coefficients indicated favorable adsorption of Pb2+ and Co2+ ions on the adsorbents. The adsorption of Pb2+ and Co2+ in aqueous solution was in the following order (1400µm>420µm>150µm). More than 55.4% of studied Lead cations were removed by 1400µm, 47.2% by 420µm and 29.8% by 150µm. While for Cobalt cations only 53.2% by 1400µm, 38.6% by 420µm and 24% by 150µm respectively, from aqueous solution it was concluded that, activated Carbon derived from Detarium microcarpum seed is good in removing both lead and cobalt ions, which make it good absorbent.

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