Catalytic Materials: Elimination of Environmental Pollutants

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: closed (10 June 2022) | Viewed by 2540

Special Issue Editors

1. Institute of Urban Environment, CAS, Xiamen City, China
2. University of Chinese Academy of Sciences, Beijing, China
Interests: catalytic oxidation; volatile organic compounds; rare earth catalyst; single atom; interface modulation

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Guest Editor
Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
Interests: emerging organic contaminant; heavy metals; adsorption; catalytic reduction; catalytic oxidation; interfacial behavior

Special Issue Information

Dear Colleagues,

With increased urbanization, more people live in the city causing a variety of pollutants to the urban environment. These pollutants widely existing in air, water and soil are threating human health; for instance, over 6 million deaths worldwide were due to air pollution in 2019. Therefore, the development of controlling technologies has attracted more attention. Because of less secondary pollution and lower energy costing, catalytic technology is considered as the best approach. For example, the emission of NOx is reduced by NH3-SCR, indoor formaldehyde can be eliminated by catalytic oxidation, and organic dye in water can be decomposed via photocatalysis. However, the widespread application of catalysts results in some problems concerning lifetime, costing, as well as regeneration and post-treatment of inactivate catalyst. This Special Issue call for papers for Catalysts invites research contributions on the latest multidisciplinary advances on Environmental Catalysis covering these crucial fields:

(1)   Noble metal catalyst with high dispersion, single atom catalyst

(2)   Application of non-noble catalyst, rare earth material

(3)   Modulation of strong interaction between support and metal

(4)   Mechanism of catalyst poisoning at environment condition

(5)   Prolonged lifetime of environmental catalyst

(6)   Resource recycling

Submit your paper and select the Journal “Catalysts” and the Special Issue “Catalytic Materials: Elimination of Environmental Pollutants” via: MDPI submission system. Please contact the Guest Editor or the journal editor ([email protected]) for any queries. Our papers will be published on a rolling basis and we will be pleased to receive your submission once you have finished it.

Dr. Jin Chen
Dr. Xuejiao Liu
Guest Editors

Manuscript Submission Information

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Keywords

  • Gaseous pollution
  • Water pollution
  • Noble Catalyst
  • Single atom
  • Non-noble catalyst
  • High dispersion
  • Interface modulation
  • Rare earth
  • Catalyst regeneration
  • Waste post-treatment

Published Papers (1 paper)

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Research

16 pages, 4094 KiB  
Article
Flower-like Co3O4 Catalysts for Efficient Catalytic Oxidation of Multi-Pollutants from Diesel Exhaust
by Zihao Li, Xianhuai Chen, Jinghuan Chen, Huazhen Chang, Lei Ma and Naiqiang Yan
Catalysts 2022, 12(5), 527; https://doi.org/10.3390/catal12050527 - 7 May 2022
Cited by 2 | Viewed by 2138
Abstract
Nowadays, the oxidation activity at the low-temperature regime for Co3O4 catalysts needs to be improved to meet the stringent regulation of multi-pollutant diesel exhaust. Herein, nanoflower-like Co3O4 diesel oxide catalysts (DOCs) were fabricated with the addition of [...] Read more.
Nowadays, the oxidation activity at the low-temperature regime for Co3O4 catalysts needs to be improved to meet the stringent regulation of multi-pollutant diesel exhaust. Herein, nanoflower-like Co3O4 diesel oxide catalysts (DOCs) were fabricated with the addition of a low-content Pt to trigger better catalytic activities for oxidizing multi-pollutants (CO, C3H6, and NO) emissions by taking advantage of the strong-metal supporting interaction. Compared to the conventional DOCs based on Pt/Al2O3, the as-synthesized Pt/Co3O4 catalysts not only exhibited better multi-pollutants oxidation activities at the low temperature but also obtained better resistance toward NO inhibition. Moreover, Pt/Co3O4 catalysts showed exceptional hydrothermal durability throughout long-term tests in the presence of water vapor. According to the XPS and H2-TPR results, Pt promoted low-temperature catalytic activity by increasing the active surface oxygen species and reducibility due to the robust synergistic interaction between metallic Pt and supporting Co3O4. Meanwhile, TGA curves confirmed the Pt atoms that facilitated the desorption of surface-active oxygen and hydroxyl radicals in a low-temperature regime. Furthermore, instead of probing the intermediates during CO and C3H6 oxidation for Pt/Co3O4 catalysts, which included carbonates, formate, and acetate species, in situ DRIFTs experiments also revealed C3H6 oxidation mainly took place over metallic Pt sites. Full article
(This article belongs to the Special Issue Catalytic Materials: Elimination of Environmental Pollutants)
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