CAJ | 학술논문

以柚子皮为原料制备了柚子皮、水洗柚子皮和酸洗柚子皮3种生物吸附剂，用于吸附水溶液中亚甲基蓝（ MB）．考察了溶液pH值、吸附时间、MB溶液初始浓度等对吸附效果的影响，并探讨了吸附机理．结果表明：3种吸附剂对MB的吸附规律大致相同，其中水洗柚子皮的吸附量最大，酸洗柚子皮次之，柚子皮最小．在pH 9，25℃条件下，用水洗柚子皮吸附溶液中MB，约170 min达到吸附平衡，等温吸附数据符合Langmuir等温吸附模型，最大吸附量为335mg· g-1．用pH 2的酸液进行解吸附再生，解吸率达到78％．红外光谱分析表明：水洗柚子皮表面有羟基、羧基、羰基、醛基和氨基等多种官能团，吸附剂表面带负电荷的基团对MB的吸附起重要作用．
이유자피위원료제비료유자피、수세유자피화산세유자피3충생물흡부제，용우흡부수용액중아갑기람（ MB）．고찰료용액pH치、흡부시간、MB용액초시농도등대흡부효과적영향，병탐토료흡부궤리．결과표명：3충흡부제대MB적흡부규률대치상동，기중수세유자피적흡부량최대，산세유자피차지，유자피최소．재pH 9，25℃조건하，용수세유자피흡부용액중MB，약170 min체도흡부평형，등온흡부수거부합Langmuir등온흡부모형，최대흡부량위335mg· g-1．용pH 2적산액진행해흡부재생，해흡솔체도78％．홍외광보분석표명：수세유자피표면유간기、최기、탄기、철기화안기등다충관능단，흡부제표면대부전하적기단대MB적흡부기중요작용．
Water-washing and acid -treatment were applied to prepare pomelo peel adsorbents to adsorb methylene blue (MB) in water solution.The effects of pH value, adsorption time, the initial concentration of the dye solution were investigated and the adsorption mechanism was discussed .The results showed that the adsorption patterns of the three adsorbents were the same .The adsorption amount of water-treated pomelo peel was highest , acid-treated pomelo peel adsorbed less, while untreated pomelo peel adsorbed the least .Under pH 9, 25 ℃, adsorption reached equilibrium after 170 min for the water-treated pomelo peel .The adsorption followed the Langmuir adsorption isothermal mode and the maximum adsorption capacity reached 335 mg · g-1 .The desorption reached 78% under pH 2 in acid desorption regeneration.Infrared spectra revealed the presence of function groups such as -OH, COO-, C-O, N-H on the surface of water-treated peel and the negatively charged groups on the surface played an important role in the adsorption of MB .