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Table 3

Comparison of MR dye adsorption capacity by HF with other adsorbents

AdsorbentsMaximum adsorption capacity (mg/g)Optimum dose (g/L)Concentration range (mg/L)References
Annona squmosa Seed (CAS)-activated carbon 40.486 25–200 Santhi et al. (2010)  
Thiosemicarbazide-modified chitosan 17.31 3.33 10–60 Mozaffari et al. (2019)  
Phosphoric acid-treated sugarcane bagasse 10.98 50–250 Saad et al. (2010)  
Modified zeolite 24 200 Ioannou et al. (2013)  
Hen feather 6.02 5–50 This study 
Sugarcane bagasse 5.66 50–250 Saad et al. (2010)  
Spent oil shale 3.8 0.6 10–100 Mahmoud et al. (2020)  
AdsorbentsMaximum adsorption capacity (mg/g)Optimum dose (g/L)Concentration range (mg/L)References
Annona squmosa Seed (CAS)-activated carbon 40.486 25–200 Santhi et al. (2010)  
Thiosemicarbazide-modified chitosan 17.31 3.33 10–60 Mozaffari et al. (2019)  
Phosphoric acid-treated sugarcane bagasse 10.98 50–250 Saad et al. (2010)  
Modified zeolite 24 200 Ioannou et al. (2013)  
Hen feather 6.02 5–50 This study 
Sugarcane bagasse 5.66 50–250 Saad et al. (2010)  
Spent oil shale 3.8 0.6 10–100 Mahmoud et al. (2020)  
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