Recent Literature Review of Significance of Polypyrrole and Its Biocomposites in Adsorption of Dyes from Aqueous Solution

Table 2

List of common agro waste-based biosorbents used for removal of dyes.

Biosorbent	Characterization	Dye	Adsorption conditions				Adsorption potential; (mg g^−1)	Source
			Adsorbent (g/L)	Temp (°C)	pH	Time (h)
Coconut shell	FTIR. SEM. EDS	MB	1	30	9	24	200.01	[55]
Corn stalks	XPS, FT-IR	MB	2	34.8	9	1	129	[56]
Tea waste	SEM, XRD	MB	0.04	25	10	0.5	119.05	[57]
Wheat straw	TGA, SEM, FTIR	MB	1	19.8	5	1	396.9	[58]
Rice husk	TGA, XPS, BET	MG	0.5	30	6	2	67.60	[59]
Saw dust	SEM, FTIR	MG	0.01	30	8	2	52.61	[60]
Sugarcane bagasse	Pore size	RhB	0.1	20	5.7	4	263.85	[61]
Coffee ground powder	XRD, SEM,FTIR	RhB	0.05	18	7	3	5.25	[62]
Cotton stalk and hull	TAPPI 93 & ASTM E 1755-01 analysis	RB15	0.025	25	1	6	35.70	[63]
Chitosan/polyvinyl	FESEM, XRD,FTIR	MO	0.05	25	7	6	153.00	[64]