CAJ | 학술논문

用β－CD 与苯乙烯－马来酸酐交替共聚物（SMA）反应，制备了β－CD 质量分数为49．8％的水不溶性 SMA －β－CD，并用 IR、元素分析及热分析表征。以 SMA －β－CD 为吸附剂，研究了25℃下 SMA －β－CD 对水中亚甲基蓝（MB）的吸附性能。结果表明，吸附性能随体系 pH 升高而提高，吸附在120 min 内达到平衡。固液比为0.25g／L 时，SMA －β－CD 对20 mg／L 的 MB 的吸附率为100％；固液比为0.5 g／L 时，对213.6 mg／L 的 MB 吸附率达98％。SMA －β－CD 对 MB 的吸附符合 Langmuir 模型，由 Langmuir 方程求得的最大吸附量为316.4 mg／g；吸附符合拟二级动力学模型。
용β－CD 여분을희－마래산항교체공취물（SMA）반응，제비료β－CD 질량분수위49．8％적수불용성 SMA －β－CD，병용 IR、원소분석급열분석표정。이 SMA －β－CD 위흡부제，연구료25℃하 SMA －β－CD 대수중아갑기람（MB）적흡부성능。결과표명，흡부성능수체계 pH 승고이제고，흡부재120 min 내체도평형。고액비위0.25g／L 시，SMA －β－CD 대20 mg／L 적 MB 적흡부솔위100％；고액비위0.5 g／L 시，대213.6 mg／L 적 MB 흡부솔체98％。SMA －β－CD 대 MB 적흡부부합 Langmuir 모형，유 Langmuir 방정구득적최대흡부량위316.4 mg／g；흡부부합의이급동역학모형。
Water -insoluble styrene -maleic anhydride -β-cyclodextrin (SMA -β-CD)polymer, which contained 49.8% β-CD,was synthesized by β-Cyclodextrin and styrene -maleic anhydride through alternating copolymer reaction.The structure of the SMA -β-CD polymer was characterized by IR,element and thermal analysis.The effects of the adsorption of SMA -β-CD adsorb methylene blue (MB)in water at room temperature were investigated.The results indicated that the adsorption capacity of SMA -β-CD increased along with the rising of pH value.An equilibrium adsorption could be got within 120 minutes. When the solid -liquid ratio was 0.25g·L -1 ,the rate of SMA -β-CD adsorbing MB approached to 100%with the initial concentration of 20 mg·L -1 .When the solid -liquid ratio was 0.5g·L -1 ,the rate of SMA-β-CD adsorbing MB approached to 98% with the initial concentration of 213.6 mg·L -1 .The adsorp-tion of SMA -β-CD to MB was in accordance with Langmuir model.The maximum adsorption capacity ob-tained from the Langmuir equation was 316.4 mg/g,and the adsorption behavior of SMA -β-CD con-formed to pseudo -second -order kinetic model.