Ti-CMC-HTL/WP的制备及其吸附性能的研究

Study on the Preparation of Ti-CMC-HTL/WP and Its Adsorption Performance

采用低饱和态共沉淀方法，辅助微波手段快速制备了羧甲基纤维素钠（CMC）插层含钛水滑石／木粉复合材料（Ti—CMC-HTL／WP），以次甲基蓝染料为探针，探讨该材料的吸附性能。采用XRD、SEM、FT-IR等手段对其进行了表征，结果显示Ti—CMC-HTL／WP为50-100nm的颗粒状材料。考察了吸附剂浓度、吸附温度以及次甲基蓝的初始浓度等对Ti—CMGHTL／WP吸附性能的影响，结果表明该材料在40℃水浴加热40min，吸附剂的质量浓度是200mg／L，次甲基蓝的初始质量浓度为32mg／L的条件下，次甲基蓝的去除率可达到94．5％，并具有良好的循环寿命。

Ti-CMC-HTL/WP was fleetly prepared by the technology of the microwave-crystallization and low saturated state of coprecipitation. The purposed sample was characterized by XRD, IR and SEM. The results show that the synthesized Ti-CMC-HTL/WP with 50--100 nm particles having the structure of HTL. Ti-CMC-HTL/WP was then applied to the adsorption of methylene blue （MB）. The effects of adsorbent times, the adsorbent temperature, MB concentration and cycle life on the MG adsorption are investigated, the results show that Ti-CMC-HTL/WP has the good cycle life and the removal rate of MB can reach 94. 5% under of the conditions of 40℃ adsorbent temperature, adsorbent time of 40 minutes, MB concentration of 32 mg/L and adsorbent concentration of 200 mg/L, which suggest that Ti-CMC-HTL/WP can be used as a novel and efficient adsorbent for the removal of MB.