【摘要】 以氯化锌为改性剂，以稻壳为基质材料合成生物炭，系统地研究了合成的生物炭对苯酚的吸附特性，利用BET、SEM、FTIR表征了合成生物炭的物化性能，并考察了吸附条件对苯酚吸附效果的影响。结果表明：改性合成的生物炭孔径分布在3～10 nm内，3 nm处孔结构最发达；SEM显示改性后生物质炭表面更加粗糙且孔数增多；红外光谱显示在生物炭上含有羧基、羟基、醚、内酯基等官能团；当吸附条件为：pH=6,苯酚初始浓度为300 mg/L,投加量为5 g/L时，最大吸附量为39.6 mg/g。更多还原

【Abstract】 This paper uses zinc chloride as a modifier and rice husk as the matrix material to synthesize biochar. The adsorption characteristics of the synthesized biochar for phenol were systematically studied. The physicochemical properties of the synthesized biochar were characterized by BET, SEM, and FTIR, and the effect of adsorption conditions on phenol adsorption efficiency was investigated. The results showed that the pore size distribution of the modified synthesized biochar was within 3～10 nm, with the most developed pore structure at 3nm; SEM shows that the surface of modified biochar is rougher and the number of pores increases; Infrared spectroscopy shows that biochar contains functional groups such as carboxyl, hydroxyl, ether, and internal lipid groups; When the adsorption conditions are: pH=6, the initial concentration of phenol is 300mg/L; the dosage is 5g/L; the maximum adsorption capacity is 39.6mg/g.更多还原