Facile Synthesis of Graphene Oxide/Titanate Nanotube Composites and Their Application for Cobalt(II) Removal

Table 3

The comparison of the Co(II) adsorption capacity of different adsorbents.

Adsorbents	Adsorption capacity (mg/g)	References
Hydroxyapatite	20.92	[30]
Poly-ortho aminophenol and glycerol	117.9	[31]
Graphene oxide	68.2	[32]
Layered titanates	156.9	[33]
Phosphate-modified magnetite@ferrihydrite	64.1	[34]
Sugarcane leaf biomass	66.7	[35]
Nanoscaled zero-valent iron/graphene composite	134.27	[36]
GTNT composite	211.1	Present work