Potential application of activated carbon from maize tassel for the removal of heavy metals in water

A Novel Approach for the Removal of Lead(II) Ion from Wastewater Using Mucilaginous Leaves of Diceriocaryum eriocarpum Plant

“…The subsequent decrease in the removal efficiency could be due to aggregation or overlapping of the adsorption site. These findings agree with other results reported in the literature [12,15,16,38]. Figure 3 shows the effect of contact time on the adsorption of lead(II) ion onto mucilaginous leaves of DEP.…”

“…As shown in Figure 1, the band observed at 2924 cm is possibly due to C-H stretching vibrations of saturated aliphatic compounds as reported by Khambathy et al [31] while the band at 1644 cm can be attributed to -NH bending vibration of primary amines [31,32]. A small peak was observed at 1429 cm −1 and corresponds to v(C-C) stretching vibrations of aromatic rings [16].…”

“…The results from the Fourier transform infra-red showed a broad peak at 3355 cm −1 with a high transmittance frequency, which can be attributed to either -OH or -NH groups [1,16]. As shown in Figure 1, the band observed at 2924 cm is possibly due to C-H stretching vibrations of saturated aliphatic compounds as reported by Khambathy et al [31] while the band at 1644 cm can be attributed to -NH bending vibration of primary amines [31,32].…”

“…corresponds to the C-O stretch of alcohols, carboxylic acids, esters or ethers [16]. The absorption band at 611 cm…”

“…Several adsorbents from plant origin have been used and modified for heavy metal removal from wastewater and aqueous solution which include: maize tassels [15,16], watermelon shell [17], coffee beans [18], coconut shell [19], peanut shell [20], Annona squamosa shell [21], rice husks [22], rice bran [10], orange peels [23], sunflower stem [13], groundnut shells [12] and avocado seed [24]. The use of mucilage extracted from plant materials and parts of mucilaginous plants for heavy metals remediation has been recently reported [25][26][27].…”