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. 2025 Mar 6;15(10):7248–7256. doi: 10.1039/d5ra00643k

Table 2. Surface elemental compositions of PEI-g-SBMAx/TA–Fe3+/PET using EDS.

Entry Atom ratio (%)
C O Fe N S
PET 67.74 32.26 — — —
PEI-g-SBMA12%/TA–Fe3+/PET 60.38 33.70 1.26 4.54 0.12
PEI-g-SBMA22%/TA–Fe3+/PET 59.31 34.62 1.19 4.72 0.16
PEI-g-SBMA40%/TA–Fe3+/PET 59.17 34.52 1.21 4.88 0.22