Biogenic surfactant mediated facile synthesis of visible light sensitized Zn/Mg co-doped TiO2 nanomaterials – a green approach: evaluation of photocatalytic activity by degradation of Amido Black 10B

Table 2 Comparative stretching frequency values of pericarp extract and ZMT4S2BC

Compound prepared	Stretching frequencies to be measured for	Frequencies/cm⁻¹
Compound prepared	Stretching frequencies to be measured for	Frequency values for Sapindus emerginatus pericarp extract	Shifted frequency values for ZMT4S2BC (before calcination)
Sapindus emerginatus pericarp [25]	O − H stretching vibration of flavonoids	3407	3412 (broad band)
	carboxylic O − H bond stretching vibration of saponins	2875	2994
	carboxylic C=O bond stretching vibration of saponins	1618	1633
	C=O stretching vibration of flavonoids	1693	1764
	carboxylic O − H bending vibration of saponins	1050	1376

ISSN: 2468-2039