摘要本文利用水热合成法合成有序介孔材料SBA-15和MCM-41，对SBA-15和MCM-41进行基本表征。XRD表征说明所合成的SBA-15和MCM-41为有序六方孔结构；N2吸附/脱附实验说明SBA-15具有较大的比表面积；SEM可以看出MCM-41颗粒呈球状堆积，分布较均匀，直径约为200-300 nm，SBA-15大部分为棒状，长度为700-800 nm，宽度约为300-500 nm。

本文以硅基分子筛SBA-15作为吸附剂，研究了其吸附含苯酚模拟废水，分别考察了pH、温度、接触时间和初始浓度影响下的最佳吸附条件。结果表明：当pH为4，温度为15 ℃，吸附时间为40 min，初始浓度为100 mg/L时，SBA-15对苯酚的吸附达到最佳。并对SBA-15吸附苯酚进行了热力学和动力学的研究，结果表明：SBA-15对苯酚的吸附均满足Langmuir吸附等温方程和准二级吸附动力学。63817

毕业论文关键词：有序介孔材料  SBA-15  MCM-41  苯酚  吸附 

毕业设计说明书（论文）外文摘要

Title  Ordered Mesoporous for Adsorption of Phenol in Waste Water Treatment                      

Abstract In this paper,using hydrothermal synthesis method synthesizes the ordered mesoporous materials SBA - 15 and MCM - 41, and characterizes them.XRD patterns illustrate the synthesized SBA-15 and MCM-41 have the ordered hexagonal pore structure;N2 adsorption / desorption experiments show that SBA-15 has a larger surface area;It can be seen from SEM that MCM-41 particles were accumulation as ellipsoidal, distributes more uniformly, and diameter is about 200-300 nm.Most of the SBA-15 are present as rod, their length is 700-800 nm and their width is about 300-500 nm.

   In this paper, silicon-based molecular sieve SBA-15 is used to study the adsorption of phenol-containing wastewateras the adsorbent and the influence of pH, temperature, contact time and initial concentration are studied.The results show that: the adsorption for phenol is optimal when pH is 4, the temperature is 15 ℃, adsorption time is 40 min and the initial concentration is 100 mg/L.The adsorption of SBA-15 on phenol is carried out thermodynamic and kinetic studies, the results showed that: The adsorption of SBA-15 on phenol meet the Langmuir isotherm equation and the quasi-two adsorption kinetics.

Keywords: Ordered mesoporous materials  SBA-15  MCM-41  Phenol Adsorption       

1  引言 1

1.1  介孔材料的概述 1

1.2  有序介孔材料 2

1.2.1  有序介孔材料的合成 2

1.2.2  有序介孔材料的应用 2

1.3  环境污染物苯酚 4

1.4  文本的研究思路及主要内容 5

2.  实验药品、仪器和材料制备 6

2.1  实验药品与仪器 6

2.2  材料的结构表征方法 7

2.2.1  比表面积分析测试 (BET) 7

2.2.2  X-射线衍射 (XRD) 7

2.2.3  扫描电镜测试分析(SEM) 7

2.3  污染物测试方法 8

2.4  实验材料制备 8

2.4.1  六方相的MCM-41的制备 8

2.4.2  介孔分子筛SBA-15的制备 8

3  结果与讨论 有序介孔材料对废水中苯酚的吸附处理:http://www.751com.cn/huaxue/lunwen_70593.html