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Advance of Green Chemistry under the Carbon Peak and Carbon Neutral Background

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Green Chemistry".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 4980

Special Issue Editors

College of Resources and Environment, Hunan University of Technology and Business, Changsha 410001, China
Interests: machine learning; calculation model; load adaptability; spray dispersion tower; desulfurization

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Guest Editor
College of Resources and Environment, Hunan University of Technology and Business, Changsha 410001, China
Interests: air pollution control; purification process simulation; ecological environment data analysis and management; preparation and application of VOCs adsorbent and catalyst

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Guest Editor
College of Resources and Environment, Hunan University of Technology and Business, Changsha 410001, China
Interests: big data and intelligent decision-making; intelligent management of resources and environment

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Guest Editor
School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410114, China
Interests: combustion theory; high-efficiency combustion; energy-saving technologies; energy utilization of biomass and solid waste

Special Issue Information

Dear Colleagues,

Recently, the Carbon peak and Carbon neutral have been attract attention from worldwide.  Achieving carbon emissions neutrality is a goal for more than 40 governments to achieve around 2060.  Carbon peak refers to the historical peak of carbon dioxide after a plateau period. It is the historical turning point of carbon emissions from increasing to falling. To achieve carbon peak means that economic and social development is "decoupled" from carbon dioxide missions, that is, economic growth is no longer based on carbon emissions. At the cost of the increase, the carbon peak is considered to be a landmark event in the transition of an economy to green and low carbon. The carbon peak and carbon neutrality may have some connections with the industrial policy, carbon emissions trading, carbon taxation system, technological innovation, etc. The improvement of any industrial process is inseparable from the continuous trial and development of scientific research experiments.

The "Double Carbon" strategy also is the great goal in Green Chemistry field and many researchers doing many efforts to  achieve this point. Under this big background, we hold this special issue for collecting all academic results related this theme. Any research which related to the Carbon peak and Carbon neutral in chemistry field can be considered, such as but not limited to the flue gas pollutant purification, and CO2 capture and storage, etc.

Dr. Jing Liu
Dr. Changqing Su
Prof. Dr. Jian Ren
Prof. Dr. Liang Liu
Guest Editors

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Keywords

  • carbon peak
  • carbon neutral
  • energy
  • environmental chemistry
  • green chemistry
  • pollutant purification
  • CO2 capture

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Published Papers (2 papers)

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Research

20 pages, 4549 KiB  
Article
Porous Structure of β-Cyclodextrin for CO2 Capture: Structural Remodeling by Thermal Activation
by Tianxiang Guo, Runan Zhang, Xilai Wang, Lingfeng Kong, Junpeng Xu, Huining Xiao and Alemayehu Hailu Bedane
Molecules 2022, 27(21), 7375; https://doi.org/10.3390/molecules27217375 - 30 Oct 2022
Cited by 5 | Viewed by 2408
Abstract
With a purpose of extending the application of β-cyclodextrin (β-CD) for gas adsorption, this paper aims to reveal the pore formation mechanism of a promising adsorbent for CO2 capture which was derived from the structural remodeling of β-CD by thermal activation. The [...] Read more.
With a purpose of extending the application of β-cyclodextrin (β-CD) for gas adsorption, this paper aims to reveal the pore formation mechanism of a promising adsorbent for CO2 capture which was derived from the structural remodeling of β-CD by thermal activation. The pore structure and performance of the adsorbent were characterized by means of SEM, BET and CO2 adsorption. Then, the thermochemical characteristics during pore formation were systematically investigated by means of TG-DSC, in situ TG-FTIR/FTIR, in situ TG-MS/MS, EDS, XPS and DFT. The results show that the derived adsorbent exhibits an excellent porous structure for CO2 capture accompanied by an adsorption capacity of 4.2 mmol/g at 0 °C and 100 kPa. The porous structure is obtained by the structural remodeling such as dehydration polymerization with the prior locations such as hydroxyl bonded to C6 and ring-opening polymerization with the main locations (C4, C1, C5), accompanied by the release of those small molecules such as H2O, CO2 and C3H4. A large amount of new fine pores is formed at the third and fourth stage of the four-stage activation process. Particularly, more micropores are created at the fourth stage. This revealed that pore formation mechanism is beneficial to structural design of further thermal-treated graft/functionalization polymer derived from β-CD, potentially applicable for gas adsorption such as CO2 capture. Full article
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10 pages, 3147 KiB  
Article
Dimerization of Acetylene to Monovinylacetylene (MVA) by Bimetallic Zr/Cu Catalyst in Nieuwland Catalytic System
by Leng Zheng, Ruolin Lin, Dingjie Luo, Liang Guo and Jinli Zhang
Molecules 2022, 27(3), 602; https://doi.org/10.3390/molecules27030602 - 18 Jan 2022
Cited by 4 | Viewed by 1958
Abstract
Nieuwland catalyst is a key step in the dimerization of acetylene. Various zirconium metal additives incorporating Nieuwland catalysts were prepared, and their catalytic performances were assessed in acetylene dimerization. Different characterization techniques (i.e., thermogravimetric analysis, temperature-programmed reduction, X-ray diffraction, X-ray photoelectron spectroscopy, hydrogen [...] Read more.
Nieuwland catalyst is a key step in the dimerization of acetylene. Various zirconium metal additives incorporating Nieuwland catalysts were prepared, and their catalytic performances were assessed in acetylene dimerization. Different characterization techniques (i.e., thermogravimetric analysis, temperature-programmed reduction, X-ray diffraction, X-ray photoelectron spectroscopy, hydrogen ion concentration measurement and transmission electron microscopy) were employed in this study. The best catalytic performance was obtained over zirconium-acetylacetonate-incorporated Nieuwland catalysts, with an acetylene conversion of 53.3% and a monovinylacetylene selectivity of 87.4%. Based on these results, the zirconium acetylacetonate additive could reduce the types of transition state complexes, and it could also change the morphology of the catalyst. In addition, the additives could significantly inhibit the occurrence of trimerization products and polymers. Hence, the conversion of acetylene, monovinylacetylene selectivity, and stability of the Nieuwland catalysts were enhanced. Full article
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