Fig. 2 | npj Clean Water

Fig. 2

From: Development of an EOR-produced petroleum wastewater treatment system through integrated polyacrylonitrile membrane and ZrO2/sericin technologies: revelation of interactive mechanism based on synchrotron and XDLVO analyses

Fig. 2

a, b High-resolution N 1s and O 1s spectra of the ZrSS and PAN membrane; c synchrotron-based XRF mappings of the Zr element distribution on the surface and cross-section of the ZrSS membrane; d synchrotron-based MID-IR mappings (200 µm × 200 µm) of the Amide I group distribution on the PAN and ZrSS membrane surface; e synchrotron-based R-space Zr EXAFS (normalized Zr K-edge XANES spectra in illustration) spectra of the ZrSS NCs and ZrSS membrane.

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