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Heterogeneous Catalysis for Sustainability and Carbon-Neutrality

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

Deadline for manuscript submissions: 31 October 2024 | Viewed by 970

Special Issue Editor


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Guest Editor
Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
Interests: heterogeneous catalysis; energy engineering; environmental catalysis; catalytic materials; catalyst characterization

Special Issue Information

Dear Colleagues,

Motivated by today’s vision of sustainable development and the current urgent need for carbon-neutrality, researchers from both academia and industry are devoted to developing greener approaches in the fields of energy conversion, chemical production, environmental protection, etc. Catalysis, especially heterogeneous catalysis, which dominates in practical applications, offers an ideal solution as it can help to minimize the consumption of energy and the generation of waste. Hence, it is not surprising that catalysis is included as one of the twelve principles of green chemistry. Aiming at sustainable development, the ongoing substitution of feedstocks from fossil sources to renewables in recent years provides many opportunities for chemical transformations, yet urgently requires the development of more active, selective, and stable catalysts as well as new catalytic systems.

In this Special Issue, we aim to publish cutting-edge papers on the application of heterogeneous catalysis in sustainable development and carbon-neutral processes. Besides thermal catalysis, research on photocatalysis and electrocatalysis is also highly welcome. We encourage original articles, reviews, short communications, and other types of research papers within the scope of this topic. We believe that your contributions will be of great interest to a broad community of scientists and engineers working in related fields, and they will help in increasing the impact of Molecules.

Dr. Ruiyang Qu
Guest Editor

Manuscript Submission Information

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Keywords

  • heterogeneous catalysis
  • photocatalysis
  • electrocatalysis
  • catalytic materials
  • renewable energy
  • sustainable development
  • carbon-neutrality

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Published Papers (1 paper)

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Research

16 pages, 3519 KiB  
Article
Adsorptive–Photocatalytic Composites of α-Ferrous Oxalate Supported on Activated Carbon for the Removal of Phenol under Visible Irradiation
by Salomé Galeas, Víctor H. Guerrero, Patricia I. Pontón, Carla S. Valdivieso-Ramírez, Paul Vargas-Jentzsch, Paola Zárate and Vincent Goetz
Molecules 2024, 29(15), 3690; https://doi.org/10.3390/molecules29153690 - 4 Aug 2024
Viewed by 715
Abstract
Adsorptive–photocatalytic composites based on activated carbon (AC) and α-ferrous oxalate dihydrate (α-FOD) were synthesized by an original two-step method and subsequently used for the removal of phenol from aqueous solutions. To obtain the composites, ferrotitaniferous black mineral sands (0.6FeTiO3·0.4Fe2O [...] Read more.
Adsorptive–photocatalytic composites based on activated carbon (AC) and α-ferrous oxalate dihydrate (α-FOD) were synthesized by an original two-step method and subsequently used for the removal of phenol from aqueous solutions. To obtain the composites, ferrotitaniferous black mineral sands (0.6FeTiO3·0.4Fe2O3) were first dissolved in an oxalic acid solution at ambient pressure, and further treated under hydrothermal conditions to precipitate α-FOD on the AC surface. The ratio of oxalic acid to the mineral sand precursor was tuned to obtain composites with 8.3 and 42.7 wt.% of α-FOD on the AC surface. These materials were characterized by X-ray powder diffraction, scanning electron microscopy, and the nitrogen adsorption–desorption method. The phenol removal efficiency of the composites was determined during 24 h of adsorption under dark conditions, followed by 24 h of adsorption–photocatalysis under visible light irradiation. AC/α-FOD composites with 8.3 and 42.7 wt.% of α-FOD adsorbed 60% and 51% of phenol in 24 h and reached a 90% and 96% removal efficiency after 12 h of irradiation, respectively. Given its higher photocatalytic response, the 42.7 wt.% α-FOD composite was also tested during successive cycles of adsorption and adsorption–photocatalysis. This composite exhibited a reasonable level of cyclability (~99% removal after four alternated dark/irradiated cycles of 24 h and ~68% removal after three simultaneous adsorption–photocatalysis cycles of 24 h). The promising performance of the as-prepared composites opens several opportunities for their application in the effective removal of organic micropollutants from water. Full article
(This article belongs to the Special Issue Heterogeneous Catalysis for Sustainability and Carbon-Neutrality)
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