Enhanced adsorption of dibenzothiophene with zinc/copper-based metal-organic frameworks

被引：108

作者：

Wang, Tingting ^{[1
]}

Li, Xingxian ^{[1
]}

Dai, Wei ^{[1
]}

Fang, Yaoyao ^{[1
]}

Huang, He ^{[2
]}

机构：

[1] Zhejiang Normal Univ, Coll Chem & Life Sci, Jinhua 321004, Zhejiang, Peoples R China

[2] Nanjing Univ Technol, Coll Biotechnol & Pharmaceut Engn, Nanjing 210009, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 42期

关键词：

OXIDATIVE DESULFURIZATION; AMBIENT CONDITIONS; THIOPHENE CAPTURE; LIQUID FUELS; REMOVAL; CARBON; FUNCTIONALIZATION; TEREPHTHALATE; MICROWAVE; ZEOLITES;

D O I：

10.1039/c5ta05204a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel type of bimetallic-organic porous material (Zn/Cu-BTC) has been successfully synthesized with Zn2+ replacing Cu2+ in the paddle wheel unit. The as-synthesized sorbents were characterized by XRD, SEM, ICP, and TGA analyses and N-2 adsorption at 77 K. The desulfurization performance of the prepared adsorbents was evaluated by the selective adsorption of dibenzothiophene (DBT) from simulated oils in a fixed-bed breakthrough column at room temperature (298 K). From the obtained breakthrough curves, both the breakthrough capacity and the saturation capacity of the adsorbents for the sulfur element were determined. The results showed that Zn/Cu-BTC exhibited high desulfurization capacities, which are even superior to those reported previously in the literature. In addition, these novel adsorbents possessed good durability and affinities for the adsorption of dibenzothiophene in the presence of aromatic components and moisture. The saturated adsorbent Zn/Cu-BTC can be regenerated with a nitrogen atmosphere sweeping at 573 K for 5 h. More than 90% of the desulfurization capacity was recovered after regeneration.

引用

页码：21044 / 21050

页数：7

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