摘要： 以饱和ATP为硅源，CTAB为模板剂合成了MCM-41分子筛，考察了n（H2O）∶n（Si）（水硅比）对晶体的影响。结果表明，当水硅比为60时，其XRD特征峰最强，峰形较窄且对称，晶体大小均一、球状体规则，孔径分布均匀。研究S-60分子筛对MB吸附，0.1 g S-60分子筛对10 mg/L MB溶液，在25℃、pH=7条件下吸附25 min，吸附率高达98.96%，吸附容量为9.89 mg/g，且MCM-41分子筛具有循环再生性。
关键词:
饱和ATP,
MCM-41分子筛,
吸附
Abstract: The MCM-41 molecular sieves have been synthesized from saturated ATP as silicon source,and CTAB as template. The influences of n(H2O):n(Si)(H2O/Si ratio) on the crystal are analyzed. The results indicate that when H2O/Si ratio is 60,its XRD characteristic peaks are the strongest,peak shape is relatively narrow and symmetrical,crystal size uniform,globule regular,and pore size evenly distributed. The adsorption of methylene blue on S-60 mole-cular sieves has been investigated. The adsorption of MB by S-60 at 0.1 g of S-60 for 10 mg/L of MB solution has been investigated,under the following conditions:T=25℃,pH=7,and adsorption time 25 min. The adsorption rate is as high as 98.96%,and adsorption capacity is 9.89 mg/g. Furthermore,MCM-41 molecular sieve has cyclic reproducibility.
Key words:
saturated ATP,
MCM-41 molecular sieve,
adsorption
中图分类号:
张建民, 刘娟, 李红玑, 王改平. MCM-41分子筛合成中水硅比作用及MB吸附性能[J]. 工业水处理, 2018, 38(3): 73-76.
Zhang Jianmin, Liu Juan, Li Hongji, Wang Gaiping. H2O/Si ratio action in MCM-41 molecular sieve synthesis and MB adsorption capability[J]. INDUSTRIAL WATER TREATMENT, 2018, 38(3): 73-76.