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用 pH计和红外光谱仪研究了空心莲子草对Co(NO3) 2 的生物吸附特性 .发现空心莲子草对Co2 +具有较强的吸附能力 ,在达到饱和吸附前 ,其吸附量随Co2 +的起始浓度的增加而增加 .吸附前后的 pH值及红外光谱表明 :在吸附过程中 ,羟基和酰氨基起重要作用 ,Co2 +与生物材料中的氢(可能是羟基氢 )发生了交换 ,且化学吸附和物理吸附同时起作用
The biosorption characteristics of Alternanthera philoxeroides against Co (NO3) 2 were studied by pH meter and infrared spectroscopy. It was found that Alternanthera philoxeroides had a strong adsorption capacity for Co2 +. Before reaching saturation adsorption, the adsorption capacity of Alternanthera philoxeroides with Co2 + The initial pH value and the infrared spectrum of the adsorbent showed that the hydroxyl and amido groups played an important role in the adsorption process, Co2 + was exchanged with the hydrogen in the biomaterial (possibly the hydroxyl hydrogen), and the chemical Adsorption and physical adsorption work at the same time