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Table 1 Comparison of the maximum removal capacity of Cr (VI) on various removers

From: Preparation of Hollow Polyaniline Micro/Nanospheres and Their Removal Capacity of Cr (VI) from Wastewater

Removers pH qm (mg g−1) References
Hollow PANI spheres 3.0 127.88 This work
Hollow PANI spheres 4.0 43.20 This work
Hollow PANI spheres 5.0 25.61 This work
Poly(o-toluidine)/pumice 3.0 19.4 [30]
Hazelnut shell activated carbon (H2SO4) 3.0 52.2 [31]
PANI-jute 3.0 62.9 [32]
Waste Weed, Salvinia cucullata 4.9 23.98 [33]
Water lily 5.0 5.11 [34]
PANI nanowire/tubes 5.0 86.7 26
Wood activated carbon 2.0–5.0 29.9–26.6 [35]