Preparation of nano-CuO and its removal performance of H2S at room temperature

被引：0

作者：

Li, Fen ^{[1
]}

Lei, Tao ^{[1
]}

Yang, Ying ^{[1
]}

Zhang, Yan-Ping ^{[2
]}

Wei, Jin ^{[1
]}

Yang, Guang-Hui ^{[1
]}

机构：

[1] College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin

[2] School of Civil Engineering, Hebei University of Technology, Tianjin

来源：

Cailiao Gongcheng/Journal of Materials Engineering | 2015年 / 43卷 / 10期

关键词：

Copper oxide; Desulfurization at room temperature; Hydrogen sulfide; Nanomaterial; Structure;

D O I：

10.11868/j.issn.1001-4381.2015.10.001

中图分类号：

学科分类号：

摘要：

Nano-CuO was prepared by methods of liquid-phase precipitation and solid state reaction. The structure of nano-CuO was analyzed by XRD, XPS, TEM and BET techniques, and the effect of the structure of nano-CuO on the removing performance of H2S was also studied. The results indicate that various crystal size nano-CuO can be prepared by changing preparation process parameters. The desulfurization performance of nano-CuO decreases significantly with the increases of crystal size. The nano-CuO with the crystal size of 9.3 nm exhibits the best desulfurization performance, and the breakthrough time of H2S can reach 270 min. A small amount cluster caused by small crystal size has a little impact on the desulfurization activity of nano-CuO. However, the appearance of oxygen vacancies on the copper oxide surface and the decrease of electron cloud density around the copper are beneficial to the improving of desulfurization performance of nano-CuO. When the specific surface area is a little different, the effect on the desulfurization activity of nano-CuO is not obvious. But the removal of H2S can be improved when the irregular pore formed by grain accumulation distribution is narrow, and the open and contraction pore structures exist at the same time. ©, 2015, Beijing Institute of Aeronautical Materials (BIAM). All right reserved.

引用

页码：1 / 6

页数：5

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