Table 2 The application of NPs made from M. oleifera in water treatment

AgNPs from M. oleifera seed

Photocatalytic activity toward organic dyes (methylene blue (> 81%), 4-nitrophenol (> 75%), orange red (> 82%) and > 80% of the Pb removal, antimicrobial activity against Gram positive (Staphylococcus aureus) and Gram negative (Escherichia coli, Pseudomonas aeruginosa, and Salmonella enterica typhimurium)

4

[14]

AgNPs from M. oleifera flower

Antibacterial (Klebsiella pneumoniae, S. aureus), sensing copper ions from 1 to 12 mM concentrations

22

[4]

FeO-NPs from a mixture of M. oleifera leaf extract and Psidium guajava leaf extract

Photocatalytic activity toward methylene blue

82

[163]

M. oleifera activated carbon modified with chitosan and Fe₃O₄ NPs

Cr adsorption capacity of 130.80 mg/g

NA

[164]

Cellulose nanofibers from M. oleifera

Cd (> 12 mg/g) and Pb (> 80 mg/g) adsorption

80–160

[165]

Activated carbon from M. oleifera seed modified with FeONPs

94.2% oils and greases adsorption

Average pore size 3.1

[166]

Aluminium oxide NPs M. oleifera gum activated carbon

Photocatalytic 94% nitrate and 95% phosphate removal

16.12

[167]

M. oleifera with Fe₃O₄ NPs

Elimination of S. aureus

NA

[168]

Ag and CuONPs from M. oleifera leaf and stem

Antimicrobial activity against E. coli, S. typhi, P. aeruginosa, Klebsiella variicola

NA

[169]

Activated carbon from M. oleifera seed modified with AgNPs

Methyl blue and methyl orange 90% and 77% photodegradation

200 to 305

[170]

FeONPs from M. oleifera leaf and stem

65.01 mg g⁻¹ metformin adsorption capacity

NA

[171]

ZnONPs from M. oleifera leaves extract

Adsorption of congo red dye reached equilibrium in 120 min

10

[86]