Page 182 - 精细化工2019年第9期
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第 36 卷第 9 期                             精   细   化   工                                  Vol.36, No.9
             201 9 年 9 月                             FINE CHEMICALS                                 Sept.    2019


                水处理技术与环境保护
                H P W O /MIL-101(Fe)材料的制备及其吸附性能
                   6 2
                            18
                                  62
                                                                                 *
                                                                                             *
                           何云鹏,郭改娟,吴   双,张晓燕,杨水金 ,吕宝兰
                                      (湖北师范大学  化学化工学院,湖北  黄石    435002)


                 摘要:采用溶剂热合成法在制备 MIL-101(Fe)的过程中引入杂多酸 H 6 P 2 W 18 O 62 ,制备出吸附剂 H 6 P 2 W 18 O 62 /
                 MIL-101(Fe),并测试了其对亚甲基蓝(MB)的吸附性能。考察了 H 6 P 2 W 18 O 62 的负载量、MB 质量浓度、溶液
                 pH、温度等对材料的吸附性能。通过 XRD、SEM、FTIR、N 2 吸附-脱附等手段对材料进行表征。结果表明:吸
                 附平衡前,吸附量随 MB 质量浓度的增加而增加,在溶液 pH=4、H 6 P 2 W 18 O 62 负载量相对于复合物质量分数为
                 35%的条件下,吸附剂 H 6 P 2 W 18 O 62 /MIL-101(Fe)对亚甲基蓝溶液吸附效果最佳,在 303  K 下 H 6 P 2 W 18 O 62 /
                 MIL-101(Fe)对 MB 的最大吸附量可达 148.1 mg/g。通过动力学和热力学分析,该吸附过程符合拟二级动力学与
                 Langmuir 等温吸附模型,同时是一个吸热、自发的过程。
                 关键词:杂多酸;金属有机骨架;吸附;亚甲基蓝(MB);复合材料;水处理技术
                 中图分类号:O647.3      文献标识码:A     文章编号:1003-5214 (2019) 09-1910-07


                    Preparation and Adsorption Properties of H 6P 2W 18O 62/MIL-101(Fe)


                                                                                                     *
                                                                                         *
                   HE Yun-peng, GUO Gai-juan, WU Shuang, ZHANG Xiao-yan, YANG Shui-jin , LÜ Bao-lan
                    (College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, Hubei, China)

                 Abstract: The heteropoly acid H 6P 2W 18O 62 was introduced into the MIL-101(Fe) by solvothermal synthesis
                 to prepare a new adsorbent H 6P 2W 18O 62/MIL-101(Fe), and its adsorption performance for methylene blue
                 (MB) was tested. The adsorption properties of the materials under different conditions such as the loading
                 of H 6P 2W 18O 62, the mass concentration of methylene blue solution, the pH value of the solution and the
                 temperature were investigated. The materials were characterized by XRD, SEM, FTIR and N 2 adsorption-
                 desorption. The experimental results show that the adsorption capacity increased with the increase of the
                 mass concentration of MB before the adsorption equilibrium, when the loading amount of H 6P 2W 18O 62  is
                 35% of the mass fraction of the composite, the adsorption effect of the adsorbent H 6P 2W 18O 62/MIL-101(Fe)
                 on methylene blue solution was the best in solution pH=4. The maximum adsorption capacity of MB by
                 H 6P 2W 18O 62/MIL-101(Fe)  can  reach  148.1  mg/g  at  303  K.  By  kinetic  and  thermodynamic  analysis,  the
                 adsorption  process  conforms  to  the  pseudo-second-order  kinetics  and  Langmuir  isothermal  adsorption
                 model. The adsorption is also an endothermic and spontaneous process.
                 Key  words:  heteropoly  acid;  metal  organic  frameworks;  adsorption;  methylene  blue  (MB);  composite;
                 water treatment technology


                                                                                                    [1]
                 随着经济、工业、科技的发展,水体污染越来                          物基因发生突变,危害到人类的身体健康 。因此,
            越严重,如在制革、纺纱、印染等行业中,会排放                             水体污染的治理一直是人们研究的重要课题。近几
            出大量带有染料的废水。染料废水致使水中的动植                             年涌现出许多处理环境污染物的方法,如化学沉淀



                 收稿日期:2019-01-08;  定用日期:2019-04-22; DOI: 10.13550/j.jxhg.20190031
                 基金项目:湖北省自然科学基金重点项目(2014CFA131);污染物分析与资源化技术湖北省重点实验室资助项目(No.PA20170211)
                 作者简介:何云鹏(1993—),男,硕士生。联系人:杨水金(1964—),男,教授,E-mail:yangshuijin@hbnu.edu.cn;吕宝兰(1965—),
                 女,副教授,E-mail:lu.bl@163.com。
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