scholarly journals Adsorptive removal of cationic dye from aqueous solution using chemically modified African Border Tree (Newbouldia laevis) bark

2018 ◽  
Vol 21 (7) ◽  
pp. 1323 ◽  
Author(s):  
C John. Ajaelu ◽  
Vivian Nwosu ◽  
Lara Ibironke ◽  
Adebayo Adeleye
Keyword(s):  
Aqueous Solution ◽  
Cationic Dye ◽  
Adsorptive Removal ◽  
Chemically Modified

Adsorptive Removal of Cationic Dye from Aqueous Solution by Graphene Oxide/Cellulose Acetate Composite

2019 ◽  
Vol 19 (8) ◽  
pp. 4535-4542 ◽  
Author(s):  
Haoliang Zang ◽  
Yanhui Li ◽  
Yali Li ◽  
Long Chen ◽  
Qiuju Du ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Cellulose Acetate ◽  
Cationic Dye ◽  
Adsorptive Removal

scholarly journals Adsorptive Removal of Methyl Red from Aqueous Solution using Charred and Xanthated Sal (Shorea robusta) Sawdust

2020 ◽  
Vol 1 (1) ◽  
pp. 37-44
Author(s):  
Krishna Bahadur Dawadi ◽  
Mahesh Bhattarai ◽  
Puspa Lal Homagai
Keyword(s):  
Aqueous Solution ◽  
Contact Time ◽  
Low Cost ◽  
Ion Concentration ◽  
Maximum Adsorption Capacity ◽  
Methyl Red ◽  
Adsorptive Removal ◽  
Shorea Robusta ◽  
Chemically Modified ◽  
Saw Dust

Adsorptive removal of methyl red (MR) from aqueous solution onto chemically modified Charred Sal (Shorea robusta) Saw-Dust (CSSD) and Xanthated Sal Saw-Dust (XSSD) has been investigated. The surface modification is characterized by Fourier transformed infra-red (FTIR) spectroscopy, scanning electron microscopy (SEM) and elemental Analysis. Different parameters are studied such as contact time, optimum pH, and initial ion concentration. Maximum dye removal is observed at pH 4 for charred and xanthated Sal saw dust. The dye can be quantitatively removed onto the surface of these adsorbent. At a contact time of 3-4 hours maximum adsorption capacity (qmax) for CSSD and XSSD are found to be 70 mg/g and 130 mg/g respectively. Adsorption kinetic data are best fitted onto pseudo second order. The obtained result indicated an excellent alternative for the treatment of dye contaminated waste water using such chemically modified Sal saw dust at low cost with better efficiency.

scholarly journals Adsorptive Removal of Malachite Green Dye from Aqueous Solution Using Chemically Modified Charred and Xanthated Wheat Bran

2020 ◽  
Vol 41 (1) ◽  
pp. 103-109
Author(s):  
Dilli Dhami ◽  
Puspa Lal Homagai
Keyword(s):  
Aqueous Solution ◽  
Malachite Green ◽  
Wheat Bran ◽  
Ph Effect ◽  
Attractive Alternative ◽  
Adsorptive Removal ◽  
Chemically Modified ◽  
Malachite Green Dye ◽  
Before And After ◽  
Initial Ph

Adsorptive removal of Malachite Green (MB) dye from aqueous solution using chemically modified Wheat Bran has been investigated. Wheat bran was chemically modified to charred through charring process and it was further modified to xanthated through xanthation process. Batch experiments were carried out to study the experimental parameters such as effect of pH, effect of concentration and effect of contact time for both Charred Wheat Bran (CWB) and Xanthated Wheat Bran (XWB) simultaneously. The concentrations of dye ions before and after the adsorption were determined by using UV-Visible Spectrophotometer. The dye uptake was maximum for the initial pH of 4 for both CWB and XWB but the percentage removal for XWB was found to be effective in comparison with CWB i.e., 98.45% and 93.45% respectively with adsorbent dose of 0.025g and agitation speed of 190 rpm. The applicability of Langmuir isotherm was tested. The adsorption capacity of MG dye into CWB and XWB was found to be 69 mg/g and 112.9 mg/g, respectively. Similarly, the kinetic data best fitted for pseudo-second order. Hence, the result showed that XWB may be an attractive alternative for the removal of MG dye from aqueous solution in comparison to CWB as bio-adsorbent.

scholarly journals Adsorptive Removal of Arsenic (III) from Aqueous Solution Using Chemically-Modified Sweet Lime (Citrus limetta) Peels

2017 ◽  
Vol 37 ◽  
pp. 11-19
Author(s):  
Subarna Karki ◽  
Ram Lochan Aryal ◽  
Sitaram Bhattarai ◽  
Surendra Kumar Gautam ◽  
Bhoj Raj Poudel
Keyword(s):  
Aqueous Solution ◽  
Adsorptive Removal ◽  
Chemically Modified ◽  
Sweet Lime ◽  
Removal Of Arsenic ◽  
Citrus Limetta

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