Recent Advances in the Preparation and Catalytic Performance of Mn-based Oxide Catalysts with Special Morphology for the Removal of Air Pollutants

2021 ◽  
Author(s):  
Chao Peng ◽  
Di Yu ◽  
Lanyi Wang ◽  
Xuehua Yu ◽  
Zhen Zhao
Keyword(s):  
Environmental Pollution ◽  
Human Health ◽  
Catalytic Oxidation ◽  
Air Pollutants ◽  
Catalytic Performance ◽  
Oxide Catalysts ◽  
Recent Advances ◽  
Air Pollutions ◽  
Special Morphology ◽  
Oxidation Technology

Air pollutants result in serious environmental pollution and cause harm to human health, which has led to air pollutions gaining attention. At present, the catalytic oxidation technology is one of...

The catalytic oxidation of organic air pollutants part 1. Single metal oxide catalysts

2007 ◽  
Vol 32 (7-12) ◽  
pp. 1025-1033 ◽  
Author(s):  
Christopher J. Heyes ◽  
James G. Irwin ◽  
Hilary A. Johnson ◽  
Ronald L. Moss
Keyword(s):  
Metal Oxide ◽  
Catalytic Oxidation ◽  
Air Pollutants ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
Single Metal Oxide

Recent Progress in 5-Hydroxymethylfurfural Catalytic Oxidation to 2,5-Furandicarboxylic Acid

2020 ◽  
Vol 24 ◽  
Author(s):  
Chiliu Cai ◽  
Haiyong Wang ◽  
Haosheng Xin ◽  
Changhui Zhu ◽  
Chenguang Wang ◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Catalytic Oxidation ◽  
Recent Progress ◽  
Aerobic Oxidation ◽  
Catalytic Performance ◽  
Reaction Pathways ◽  
Fine Chemicals ◽  
Technical Aspects ◽  
Furandicarboxylic Acid ◽  
Energy Shortage

Abstract:: Biomass has attracted much attention because of its clean and renewable characteristics. The conversion of biomass into various fine chemicals and high valueadded fuels is one of the important ways to solve the energy shortage and environmental pollution. 2,5-furandicarboxylic acid (FDCA), a kind of important and promising new bio-based monomer, has attracted the attention by many researchers due to its wide application in different industries. Therefore, many efforts have been made over various metal catalysts for FDCA production from this biomass-derived platform chemical, 5hydroxymethylfurfural (HMF). In this review, we introduced the reaction pathways of the aerobic oxidation of HMF to FDCA and summarized recent progress of different catalysts and catalysis for HMF aerobic oxidation. Catalytic performance and reaction pathways were discussed in detail. Finally, conclusions and the remaining challenges were proposed and further prospects were presented in view of the technical aspects.

scholarly journals Mycotoxins Biocontrol Methods for Healthier Crops and Stored Products

2021 ◽  
Vol 7 (5) ◽  
pp. 348
Author(s):  
Kristina Habschied ◽  
Vinko Krstanović ◽  
Zvonimir Zdunić ◽  
Jurislav Babić ◽  
Krešimir Mastanjević ◽  
...  
Keyword(s):  
Food Safety ◽  
Human Health ◽  
Fungal Growth ◽  
Antifungal Compounds ◽  
Stored Products ◽  
Soil Air ◽  
Recent Advances ◽  
Environmental Systems ◽  
Antifungal Substances

Contamination of crops with phytopathogenic genera such as Fusarium, Aspergillus, Alternaria, and Penicillium usually results in mycotoxins in the stored crops or the final products (bread, beer, etc.). To reduce the damage and suppress the fungal growth, it is common to add antifungal substances during growth in the field or storage. Many of these antifungal substances are also harmful to human health and the reduction of their concentration would be of immense importance to food safety. Many eminent researchers are seeking a way to reduce the use of synthetic antifungal compounds and to implement more eco-friendly and healthier bioweapons against fungal proliferation and mycotoxin synthesis. This paper aims to address the recent advances in the effectiveness of biological antifungal compounds application against the aforementioned fungal genera and their species to enhance the protection of ecological and environmental systems involved in crop growing (water, soil, air) and to reduce fungicide contamination of food derived from these commodities.

scholarly journals Electron donation of non-oxide supports boosts O2 activation on nano-platinum catalysts

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Gan ◽  
Jingxiu Yang ◽  
David Morris ◽  
Xuefeng Chu ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Pt Nanoparticles ◽  
Catalytic Performance ◽  
Nitrogen Vacancy ◽  
Innovative Strategy ◽  
Oxide Supports ◽  
Heterogeneous Catalytic ◽  
Highly Active ◽  
Electron Sink ◽  
Nitrogen Vacancies

AbstractActivation of O2 is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is adopted to propose an efficient strategy to develop highly active and stable catalysts for molecular O2 activation. Carbon nitride with nitrogen vacancies is prepared to serve as a support as well as electron sink to construct a synergistic catalyst with Pt nanoparticles. Extensive characterizations combined with the first-principles calculations reveal that nitrogen vacancies with excess electrons could effectively stabilize metallic Pt nanoparticles by strong p-d coupling. The Pt atoms and the dangling carbon atoms surround the vacancy can synergistically donate electrons to the antibonding orbital of the adsorbed O2. This synergistic catalyst shows great enhancement of catalytic performance and durability in toluene oxidation. The introduction of electron-rich non-oxide substrate is an innovative strategy to develop active Pt-based oxidation catalysts, which could be conceivably extended to a variety of metal-based catalysts for catalytic oxidation.

scholarly journals A Risk Assessment for Ozone Regulation Based on Statistical Rollback

2021 ◽  
Vol 11 (5) ◽  
pp. 2388
Author(s):  
Yongku Kim ◽  
Jeongjin Lee
Keyword(s):  
Public Health ◽  
Risk Assessment ◽  
Human Health ◽  
Air Pollutants ◽  
Hierarchical Bayesian Models ◽  
Health It ◽  
Matching Method ◽  
Regulatory Standards ◽  
Ozone Regulation ◽  
Ozone Levels

In environmental studies, it is important to assess how regulatory standards for air pollutants affect public health. High ozone levels contribute to harmful air pollutants. The EPA regulates ozone levels by setting ozone standards to protect public health. It is thus crucial to assess how various regulatory ozone standards affect non-accidental mortality related to respiratory deaths during the ozone season. The original rollback approach provides an adjusted ozone process under a new regulation scenario in a deterministic fashion. Herein, we consider a statistical rollback approach to allow for uncertainty in the rollback procedure by adopting the quantile matching method so that it provides flexible rollback sets. Hierarchical Bayesian models are used to predict the potential effects of different ozone standards on human health. We apply the method to epidemiologic data.

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