Fig. 3

XRD diagram for samples of diclofenac (Dic), diatoms (Dia), modified diatoms (Modia), diatoms + diclofenac (Dia + Dic) and modified diatoms + diclofenac (Modia + Dic)
XRD diagram for samples of diclofenac (Dic), diatoms (Dia), modified diatoms (Modia), diatoms + diclofenac (Dia + Dic) and modified diatoms + diclofenac (Modia + Dic)