Removal of mercury(II) from aqueous solution by adsorption on carbon aerogel: Response surface methodological approach

Carbon ◽  
2005 ◽  
Vol 43 (1) ◽  
pp. 197-200 ◽  
Author(s):  
Jyotsna Goel ◽  
K. Kadirvelu ◽  
C. Rajagopal ◽  
V.K. Garg
Keyword(s):  
Aqueous Solution ◽  
Response Surface ◽  
Methodological Approach ◽  
Carbon Aerogel

Adsorptive Removal of Cr(VI) from Aqueous Solution over Material: Optimisation through Response Surface Methodology

2014 ◽  
Vol 518 ◽  
pp. 25-30
Author(s):  
Shu Dong Wang ◽  
Song Cheng ◽  
Jian Zhang ◽  
Hai Ying Zhao ◽  
Xun Jing Ma ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Response Surface ◽  
Mesoporous Material ◽  
Adsorption Equilibrium ◽  
Removal Rate ◽  
Methodological Approach ◽  
Batch Mode ◽  
Adsorptive Removal ◽  
Optimum Ph ◽  
Adsorbent Dose

In the present study, organic-inorganic hybrid mesoporous material (HMC) were used to optimize the removal rate for Cr (VI) by applying Response Surface Methodological approach. Batch mode experiments were also carried out to assess the adsorption equilibrium in aqueous solution. The effect of three parameters, that is pH of the solution (1.52.5), initial concentration (100500 mg/L) and adsorbent dose (0.050.15 g/ 50 mL) was studied for the removal of Cr (VI) by HMC. BoxBehnken model was used as an experimental design. The optimum pH, adsorbent dose and initial Cr (VI) concentration were found to be 2.0, 0.05 g/L and 500 mg/L, respectively. Under these conditions removal adsorption capacity of Cr (VI) was found to be 337..

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