CAJ | 학술논문

文章制备了一种能够选择性吸附C d2＋的磁性印迹壳聚糖球粒。该壳聚糖球粒是以C d2＋为模板，通过分子印迹技术将磁性的Fe3 O4纳米粒子包裹入壳聚糖球粒内，使壳聚糖球粒具有磁性。结果表明：磁性印迹壳聚糖球粒对C d2＋具有很高的选择性吸附能力，其对C d2＋的吸附能力为C u2＋的2倍，是Z n2＋的3倍；该壳聚糖球粒能够在外界磁场作用下方便快捷地与水体发生分离，从而实现对水体中重金属离子的移除与富集；该壳聚糖球粒可以重复使用，在循环5次后仍保持了超过90％的吸附能力。该制作磁性印迹壳聚糖球粒的技术不仅能够应用于C d2＋的吸附与分离过程，也能应用于其他重金属离子的吸附与分离过程。
문장제비료일충능구선택성흡부C d2＋적자성인적각취당구립。해각취당구립시이C d2＋위모판，통과분자인적기술장자성적Fe3 O4납미입자포과입각취당구립내，사각취당구립구유자성。결과표명：자성인적각취당구립대C d2＋구유흔고적선택성흡부능력，기대C d2＋적흡부능력위C u2＋적2배，시Z n2＋적3배；해각취당구립능구재외계자장작용하방편쾌첩지여수체발생분리，종이실현대수체중중금속리자적이제여부집；해각취당구립가이중복사용，재순배5차후잉보지료초과90％적흡부능력。해제작자성인적각취당구립적기술불부능구응용우C d2＋적흡부여분리과정，야능응용우기타중금속리자적흡부여분리과정。
In this paper ,a kind of magnetic and molecular imprinting chitosan spheres was prepared which were able to selectively absorb Cd2+ ions .Cd2+ ions were used as templates to fabricate the mo‐lecular imprinting chitosan spheres ,magnetic Fe3 O4 nanoparticles were embedded into the chitosan spheres to endow the spheres magnetism .The results showed that ,firstly ,the absorption ability of such chitosan spheres to Cd2+ was high ,which was two times that of Cu2+ ,and was about three times that of Zn2+ ;secondly ,such chitosan spheres were able to be separated from the aqueous solutions conveniently and very quickly under the external magnetic field ,and thus to remove and concentrate the heavy metal ions ;thirdly ,such chitosan spheres could be used repeatedly ,more than 90% adsorp‐tion capacity remaining after five times recycling .The process proposed in this paper is not only suit‐able for the adsorption and separation of Cd2+ ,but also applicable in the adsorption and separation of the other heavy metal ions .