Fig. 2
Average FTIR spectra of rice straw and rice straw-derived biochar. Each spectrum was an average of 30 scans from 900–3800 cm− 1 at 4 cm− 1 spectral resolution.
Fig. 2 | Scientific Reports
Average FTIR spectra of rice straw and rice straw-derived biochar. Each spectrum was an average of 30 scans from 900–3800 cm− 1 at 4 cm− 1 spectral resolution.
