N掺杂生物炭的制备及其对Co2+ 的吸附性能

余谟鑫, 张书海, 朱博文, 张晨, 王晓婷, 鲍佳敏, 邬翔

Preparation of Nitrogen-doped Biochar and its Adsorption Capacity for Co2+

YU Moxin, ZHANG Shuhai, ZHU Bowen, ZHANG Chen, WANG Xiaoting, BAO Jiamin, WU Xiang

表3 XPS分析中O1s、N1s和Co2p谱图的官能团摩尔分数

Table 3 Functional group content of O1s spectrum, N1s spectrum and Co2p spectrum in XPS analysis (mole fraction, %)

Samples -OH C=O C-O Oxide-N Graphitic-N Pyrolic-N Pyridinic-N Co3+ Co2+ NBC600 4.63 6.37 5.40 0.19 0.24 0.38 0.39 - - NBC700 4.67 7.85 4.88 0.16 0.17 0.75 0.62 - - NBC800 14.20 21.69 10.46 0.36 0.41 2.05 1.07 - - NBC800-Co2+ 13.25 14.28 14.08 0.42 1.12 1.51 0.87 4.97 8.96