Co3O4/g-C3N4 Hybrids for Gas-Phase Hg0 Removal at Low Temperature

被引：37

作者：

Zhang, Zhen ^{[1
]}

Wu, Jiang ^{[1
]}

Liu, Dongjing ^{[2
]}

机构：

[1] Shanghai Univ Elect Power, Coll Energy & Mech Engn, Shanghai 200090, Peoples R China

[2] Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

PROCESSES | 2019年 / 7卷 / 05期

基金：

中国国家自然科学基金;

关键词：

mercury removal; carbon nitride nanosheet; cobalt oxide; elemental mercury; GRAPHITIC CARBON NITRIDE; SELECTIVE CATALYTIC-REDUCTION; ELEMENTAL MERCURY REMOVAL; VISIBLE-LIGHT; FLUE-GAS; OXIDATION; CAPTURE; PERFORMANCE; COMPOSITES; ADSORPTION;

D O I：

10.3390/pr7050279

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The Co3O4/g-C3N4 hybrids are constructed via the incipient wetness impregnation method by depositing Co3O4 onto the exterior of g-C3N4, and then employed for Hg-0 capture within 60-240 degrees C. The results show that the Co3O4/g-C3N4 hybrid with a Co3O4 content of 12 wt% performs optimally with the highest Hg-0 removal efficiency of similar to 100% at or above 120 degrees C. The high performances of the Co3O4/g-C3N4 hybrids are probably attributed to the tight interfacial contact between Co3O4 and g-C3N4, with its improved electron transfer, inferring that cobalt oxide and g-C3N4 display a cooperative effect towards Hg-0 removal. NO and SO2 shows a significant suppressive influence on the mercury capture performance, plausibly owing to the competing adsorption and side reactions.

引用

页数：11

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