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Table 4

Comparison with hitherto existing good works

S. No.SorbentsCu2+-sorption capacity, mg/gpHReferences
Hibiscus cannabinus stems 15.0 Devi et al. (2019)  
Phaseolus aureus hulls A.C. 20.0 Rao et al. (2009)  
Bio materials of Limonia acidissima plant 13.5 Devi et al. (2019)  
Ceiba pentandra hulls A.C. 21.0 Madhava Rao et al. (2006)  
Fly ash-HCl treated 21.5 Alinnor (2007)  
Clay/HCl-treated 83.3 Vengris et al. (2011)  
Sea food processing waste sludge 20.9 Lee & Davis (2001)  
Biomass of Rose waste 56.0 Iftikhar et al. (2009)  
Eggshells powder-coated with Fe3O4 44.0 Ahmad et al. (2012)  
10 Chitosan/chitosan-cross linked 88.43/200 4.5/5.6 Cao et al. (2001); Prakash & Arungalai Vendan (2016)  
11 Green alga 133.0 Gupta et al. (2006)  
12 Fly ash/NaOH-treated 64.0 6.2 Wang et al. (2006)  
13 FLSP 175.5 5 to 10 Present work 
14 APSP 140.4 6. to 10 
15 PSP 130.0 7 to 10 
S. No.SorbentsCu2+-sorption capacity, mg/gpHReferences
Hibiscus cannabinus stems 15.0 Devi et al. (2019)  
Phaseolus aureus hulls A.C. 20.0 Rao et al. (2009)  
Bio materials of Limonia acidissima plant 13.5 Devi et al. (2019)  
Ceiba pentandra hulls A.C. 21.0 Madhava Rao et al. (2006)  
Fly ash-HCl treated 21.5 Alinnor (2007)  
Clay/HCl-treated 83.3 Vengris et al. (2011)  
Sea food processing waste sludge 20.9 Lee & Davis (2001)  
Biomass of Rose waste 56.0 Iftikhar et al. (2009)  
Eggshells powder-coated with Fe3O4 44.0 Ahmad et al. (2012)  
10 Chitosan/chitosan-cross linked 88.43/200 4.5/5.6 Cao et al. (2001); Prakash & Arungalai Vendan (2016)  
11 Green alga 133.0 Gupta et al. (2006)  
12 Fly ash/NaOH-treated 64.0 6.2 Wang et al. (2006)  
13 FLSP 175.5 5 to 10 Present work 
14 APSP 140.4 6. to 10 
15 PSP 130.0 7 to 10 
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