Effect of peanut hull ash dosage on the degree of influence of operation variables on the adsorption of nickel ion from aqueous solution using peanut hull ash

2011 ◽  
Vol 42 (4) ◽  
pp. 658-661 ◽  
Author(s):  
Hui-Ru Wu ◽  
Chun-I. Lin ◽  
Li-Hwa Wang
Keyword(s):  
Aqueous Solution ◽  
Nickel Ion ◽  
Peanut Hull

scholarly journals Nickel Sorption onto Chitosan - Silica Hybrid Aerogel from Aqueous Solution

2021 ◽  
Vol 18 (9) ◽  
Author(s):  
Kelechi EBISIKE ◽  
Afamefuna Elvis OKORONKWO ◽  
Kenneth Kanayo ALANEME
Keyword(s):  
Aqueous Solution ◽  
Hydrochloric Acid ◽  
Agricultural Waste ◽  
Sorption Process ◽  
Ion Concentration ◽  
Nickel Ion ◽  
Nickel Ions ◽  
Sorption System ◽  
Silica Hybrid ◽  
Hybrid Aerogel

The utilization and efficiency of agricultural waste-derived chitosan-silica hybrid aerogel “(CS)hA” on nickel removal from aqueous solution was examined and optimum parameters for pH, contact time, and initial ion concentration were determined during batch sorption system studies. Metal recovery was performed on the adsorbent using separately dilute concentrations of hydrochloric acid, acetic acid, ammonia, and sodium hydroxide solutions as eluents. The results generated were analyzed from kinetic and isotherm studies. The maximum Ni2+ adsorption of 99.78 % was established at 60 min and pH 3 in this study. The batch studies revealed that the percentage of nickel ion removal by the adsorbent decreased along with an increase in the initial Ni2+ ions concentration. The pseudo-second-order, the best fit of the kinetic model, has the values of its correlation coefficient “R2” ranging from 0.9 to 1, whereas the Langmuir model which had the maximum monolayer adsorption capacity of 85.84 mg g-1, was the best isotherm in interpreting the sorption process and the calculated separation factor was higher than 0 but less than 1. Dilute hydrochloric acid (0.1 M) was the best eluent in removing bound nickel ions (55.63 %) from (CS)hA.

Some studies in inorganic complexes. XXII. Reactions of nickel(II) with chelating heterocyclic bases

1969 ◽  
Vol 22 (1) ◽  
pp. 59 ◽  
Author(s):  
AR Nicholoson ◽  
GJ Sutton
Keyword(s):  
Aqueous Solution ◽  
Near Infrared ◽  
Mixed Ligand ◽  
Infrared Spectrophotometry ◽  
Heterocyclic Ligands ◽  
Nickel Ion ◽  
Physical Measurements ◽  
Inorganic Complexes ◽  
Heterocyclic Bases ◽  
Solid Complexes

Spin-free six-coordinate complexes of nickel(II) and the heterocyclic ligands 2-aminomethylpyridine, 2-methylaminomethylpyridine, 2-(2- aminoethyl)pyridine, and 2-aminomethyl-6-methylpyridine have been prepared and studied. Various hydrated and anhydrous nickel(II) complexes with the anions sulphate, nitrate, halide, and perchlorate were obtained with nickel ion to ligand stoicheiometric ratios of 1 : 1, 1 : 2, and 1 : 3, and in a number of instances water molecule and anion attachments to the coordination sphere are reported; the sulphate complexes are considered to be of the bridged type. Also, certain mixed-ligand solid complexes and mixed-ligand cationic species in aqueous solution were prepared. Physical measurements used to elucidate structures included molecular conductances in suitable solvents, solubility observations, infrared spectrophotometry, pyrolysis methods, and measurements of magnetic susceptibility. Complex cations in aqueous solution were characterized by visible and near-infrared spectrophotometry.

Continuous biosorption of nickel from aqueous solution using Chrysanthemum indicum derived biochar in a fixed-bed column

2017 ◽  
Vol 76 (7) ◽  
pp. 1895-1906 ◽  
Author(s):  
Sowmya Vilvanathan ◽  
S. Shanthakumar
Keyword(s):  
Aqueous Solution ◽  
Metal Ion ◽  
Fixed Bed ◽  
Breakthrough Curves ◽  
Ion Concentration ◽  
Column Studies ◽  
Nickel Ion ◽  
Fixed Bed Column ◽  
Nickel Ions ◽  
Chrysanthemum Indicum

The biosorption capability of Chrysanthemum indicum to remove nickel ions from aqueous solution in a fixed-bed column was examined in this study. Native C. indicum flower waste was improved for its biosorptive potential by pyrolysis to obtain its biochar form and, thereby, both raw (CIF-R) and biochar (CIF-BC) forms of the flower were used for Ni(II) removal. Fixed bed column studies were conducted to examine the influence of bed height (1.0–3.0 cm), flow rate (1.0–5.0 mL min−1) and initial metal ion concentration (25–75 mg L−1). The breakthrough curves (Cout/Cin vs time) were modelled using different dynamic adsorption models, viz. Adams-Bohart, Thomas and Yoon-Nelson model. Interpretation of the data revealed a favorable correlation with the Thomas model with higher R2 values and closer model-predicted and experimental biosorption capacity values. The equilibrium uptake capacity of CIF-R and CIF-BC for Ni(II) were found to be 14.02 and 29.44 mg g−1, respectively. Further, the column was regenerated using HCl as eluent, to desorb the adsorbed Ni(II) ions. The experimental results implied and affirmed the suitability of the biosorbents for nickel ion biosorption with its nature being favorable, efficient, and environmentally friendly.

Radiation-induced precipitation of nickel ion in aqueous solution saturated with hydrogen gas

1998 ◽  
Vol 53 (6) ◽  
pp. 603-609 ◽  
Author(s):  
Norihiko Fujita ◽  
Chihiro Matsuura ◽  
Daisuke Hiroishi ◽  
Kazuhiko Saigo
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Gas ◽  
Nickel Ion ◽  
Radiation Induced

Adsorption of Pb(II) by Peanut Hull Carbon from Aqueous Solution

1995 ◽  
Vol 30 (10) ◽  
pp. 2223-2237 ◽  
Author(s):  
K. Periasamy ◽  
C. Namasivayam
Keyword(s):  
Aqueous Solution ◽  
Peanut Hull

Utilization of powdered peanut hull as biosorbent for removal of anionic dyes from aqueous solution

2005 ◽  
Vol 64 (3) ◽  
pp. 187-192 ◽  
Author(s):  
Renmin Gong ◽  
Yi Ding ◽  
Mei Li ◽  
Chao Yang ◽  
Huijun Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Anionic Dyes ◽  
Peanut Hull

scholarly journals Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Luyen T. Tran ◽  
Hoang V. Tran ◽  
Thu D. Le ◽  
Giang L. Bach ◽  
Lam D. Tran
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Adsorption Process ◽  
Adsorption Equilibrium ◽  
Entropy Change ◽  
Enthalpy Change ◽  
Nickel Ion ◽  
Adsorbent Dosage ◽  
Equilibrium Data ◽  
Adsorption Equilibrium Data

In this paper, Fe3O4/graphene oxide/chitosan (FGC) nanocomposite was synthesized using coprecipitation method for application to removal of nickel ion (Ni(II)) from aqueous solution by adsorption process. To determine residue Ni(II) ions concentration in aqueous solution after adsorption process, we have used UV-Vis spectrophotometric method, which is an effective and exact method for Ni(II) monitoring at low level by using dimethylglyoxime (DMG) as a complex reagent with Ni(II), which has a specific adsorption peak at the wavelength of 550 nm on UV-Vis spectra. A number of factors that influence Ni(II) ions adsorption capacity of FGC nanocomposite such as contact time, adsorption temperature, and adsorbent dosage were investigated. Results showed that the adsorption equilibrium is established after 70 minutes with the adsorbent dosage of 0.01 g.mL−1 at 30°C (the room temperature). The thermodynamic and kinetic parameters of this adsorption including free enthalpy change (∆G0), enthalpy change (∆H0), entropy change (∆S0), and reaction order with respect to Ni(II) ions were also determined. The Ni(II) ions adsorption equilibrium data are fitted well to the Langmuir isotherm and the maximum monolayer capacity (qmax) is 12.24 mg.g−1. Moreover, the FGC adsorbent can be recovered by an external magnet; in addition, it can be regenerated. The reusability of FGC was tested and results showed that 83.08% of removal efficiency was obtained after 3 cycles. The synthesized FGC nanocomposite with many advantages is a promising material for removal of heavy metal ions from aqueous solution to clean up the environment.

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