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Removal of volatile odorous organic compounds over NiAl mixed oxides at low temperature
Zhao, Shunzheng1,2; Yi, Honghong1,2; Tang, Xiaolong1,2; Kang, Dongjuan3; Gao, Fengyu1; Wang, Jiangen1; Huang, Yonghai1; Yang, Zhongyu1
2018-02-15
发表期刊JOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
卷号344页码:797-810
摘要In this paper, a series of NiAl hydrotalcite-like compounds (HTLCs) were prepared by the urea-decomposition method. Removal of carbonyl sulfide (COS) and methyl mercaptan (CH4S) over the hydrotalcite-derived oxides (HTO) at low temperature was studied. The Ni3Al-HTO exhibited higher catalytic activities than Ni3Al mixed oxides prepared by physical mixing method (Ni3Al-PM) or impregnation/calcination method (Ni3Al-IC). Based on the characterization, it was found that desulfurization activities are closely tied to the surface acid-base properties of catalysts. CO2-TPD indicates that the basic characteristic of the Ni3Al-HTO is prominent. XPS results showed that there was a strong interaction between Ni and Al element on Ni3Al-HTO. The first principle calculation based on density function theory was applied with the aim to study the change of basic sites. The results showed that Ni3Al-HTO presents a half-metallic characteristic. Electron transfer from the Al and O atom to the Ni atom was observed, which is helpful for the transfer of electrons from the surface and improves the catalytic activity. Analysis of the DRIFT spectra suggests that sulfate species was formed by the action of surface basic sites, resulting in the formation of H2O on the surface. (C) 2017 Elsevier B.V. All rights reserved.
关键词Odor Vocs Deep Removal Mixed Oxides
文章类型Article
WOS标题词Science & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1016/j.jhazmat.2017.11.031
收录类别SCI
语种英语
关键词[WOS]HYDROTALCITE-LIKE COMPOUNDS ; MG-AL HYDROTALCITE ; GGA PLUS U ; CATALYTIC-OXIDATION ; METHYL MERCAPTAN ; CARBONYL SULFIDE ; ACTIVATED CARBON ; ETHYL-ACETATE ; PHOTOCATALYTIC DEGRADATION ; STRUCTURED CATALYST
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS类目Engineering, Environmental ; Environmental Sciences
项目资助者China Postdoctoral Science Foundation(2016M600045) ; Fundamental Research Funds for the Central Universities(FRF-TP-16-060A1)
WOS记录号WOS:000423246700081
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23985
专题多相复杂系统国家重点实验室
作者单位1.Univ Sci & Technol Beijing, Dept Environm Engn, Beijing 100083, Peoples R China
2.Beijing Key Lab Resource Oriented Treatment Ind P, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Zhao, Shunzheng,Yi, Honghong,Tang, Xiaolong,et al. Removal of volatile odorous organic compounds over NiAl mixed oxides at low temperature[J]. JOURNAL OF HAZARDOUS MATERIALS,2018,344:797-810.
APA Zhao, Shunzheng.,Yi, Honghong.,Tang, Xiaolong.,Kang, Dongjuan.,Gao, Fengyu.,...&Yang, Zhongyu.(2018).Removal of volatile odorous organic compounds over NiAl mixed oxides at low temperature.JOURNAL OF HAZARDOUS MATERIALS,344,797-810.
MLA Zhao, Shunzheng,et al."Removal of volatile odorous organic compounds over NiAl mixed oxides at low temperature".JOURNAL OF HAZARDOUS MATERIALS 344(2018):797-810.
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