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第 36 卷第 3 期 精 细 化 工 Vol.36, No.3
201 9 年 3 月 FINE CHEMICALS Mar. 2019

催化与分离提纯技术
不同晶体形貌 NH -MIL-125(Ti)的
2

制备及光催化性能

2
1
2*
2
2
2
马蕊英 ，马 迪 ，赵晓霞 ，许 广 ，文 平 ，张 瑛
〔1. 中国石化抚顺石油化工研究院，辽宁 抚顺 116045；2. 中国石油大学（北京）理学院，北京 102249〕
摘要：以 2-氨基对苯二甲酸(H 2 ATA)和钛酸四异丙酯〔Ti(C 3 H 7 O) 4 〕为原料，采用溶剂热法合成了 NH 2 -MIL-125(Ti)
晶体，通过调变溶剂 N,N-二甲基甲酰胺（DMF）和无水甲醇的体积比，NH 2 -MIL-125(Ti)晶体呈现出圆片形、十
面体和八面体形貌。采用 XRD、SEM、FTIR 和 BET 等手段对不同形貌的 NH 2 -MIL-125(Ti)晶体进行了物性分
析，并将其用于可见光光催化环己烷的氧化反应，探究了催化性能与晶面之间的构效关系。结果表明，环己烷
选择性氧化生成环己醇和环己酮目标产物主要反应发生在 NH 2 -MIL-125(Ti)晶体的{110}晶面族，而{101}晶面族
可以进一步氧化环己醇和环己酮产生 CO 和 CO 2 。
关键词：NH 2 -MIL-125(Ti)晶体；不同晶面；光催化；环己烷氧化；催化与分离提纯技术
中图分类号：O643.36 文献标识码：A 文章编号：1003-5214 (2019) 03-0481-06

Preparation and Photocatalytic Activity of NH 2-MIL-125(Ti)

Crystals with Different Morphologies

2
2*
2
2
1
2
MA Rui-ying , MA Di , ZHAO Xiao-xia , XU Guang , WEN Ping , ZHANG Ying
（1. Fushun Research Institute of Petroleum and Petrochemicals, Sinopec, Fushun 116045, Liaoning, China; 2. College
of Science, China University of Petroleum, Beijing 102249, China）
Abstract: NH 2-MIL-125(Ti) crystals were prepared using 2-aminoterephthalic acid (H 2ATA) and
tetraisopropyl titanate〔Ti(C 3H 7O) 4〕 as raw materials by a solvothermal method. By varying the volume
ratio of N,N-dimethylformamide (DMF) to methanol (MeOH) in the synthesis system, NH 2-MIL-125(Ti)
crystals exhibited circular plate, decahedral or octahedral morphology. XRD, SEM, FTIR and BET
characterization techniques were used to study the physical properties of NH 2-MIL-125(Ti) crystals with
different morphologies. Then these crystals were used in the photocatalytic oxidation of cyclohexane under
visible light irradiation. The structure-activity relationship between catalytic performance and crystal plane
was explored. Results showed that the main reaction of selective oxidation of cyclohexane to target
products cyclohexanol and cyclohexanone occurs in the {110} crystal face family of NH 2-MIL-125(Ti)
crystals, whereas the {101} crystal face family is mainly to further oxidize cyclohexanol and cyclohexanone
into CO and CO 2.
Key words: NH 2-MIL-125(Ti) crystals; different crystal planes; photocatalysis; cyclohexane oxidation;
catalysis, separation and purification technology
Foundation items: National Basic Research Program of China (2016YFC0303700); National Natural
Science Foundation of China (21676296)

可见光催化能够高效利用太阳能，是解决环境 了广泛关注。目前研究较多的可见光催化剂主要为
问题、减少能源消耗的理想途径之一，近年来受到 铬系光催化剂、含氧酸盐类光催化剂以及贵金属负

收稿日期：2018-07-26; 定用日期：2018-11-21; DOI: 10.13550/j.jxhg.20180555
基金项目：国家重点研发计划（2016YFC0303700）；国家自然科学基金项目（21676296）
作者简介：马蕊英（1985—），女，工程师。联系人：张 瑛（1977—），女，教授，博士生导师，E-mail：Y.Zhang@cup.edu.cn。