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Applications of Catalytic Materials in Energy and Environmental Areas

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Catalytic Materials".

Deadline for manuscript submissions: closed (20 August 2023) | Viewed by 1546

Special Issue Editors

Centre for Catalysis and Clean Energy, Griffith University, Brisbane 4222, Australia
Interests: materials; nanotechnology; photocatalysis; wastewater treatment; future energy synthesis
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Guest Editor
Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China
Interests: photocatalysis; electrocatalysis; CO2 reduction; photodedradation

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Guest Editor
Key Laboratory of Urban Stormwater System and Water Environment, Beijing University of Civil Engineering and Architecture, Ministry of Education, Beijing 100044, China
Interests: photocatalysis and application in environmental purification; energy conversion; the design and morphological control of nanomaterials

Special Issue Information

Dear Colleagues,

In recent years, the world has faced increasingly urgent energy and environmental challenges and a higher demand for clean energy and water. Improved nanomaterials and nanotechnologies could be applied to such issues, benefiting the sustainable development of society. This Special Issue will act as a forum allowing scientists and engineers to exchange the latest knowledge on the use of nanomaterials for catalysis in energy and environmental fields.

The following topics are of particular interest for this Special Issue: catalytic synthesis of future energy sources, including hydrogen; catalytic carbon dioxide reduction; catalytic synthesis of ammonia; catalytic degradation of pollutants in wastewater; air-purification catalysts; and other energy or environmental applications. Researchers are encouraged to submit relevant studies with an emphasis on the application of catalysts for environmental purification of future energy synthesis.

Dr. Derek Hao
Dr. Wenjun Jiang
Dr. Xiaojuan Bai
Guest Editors

Manuscript Submission Information

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Keywords

  • hydrogen
  • ammonia
  • carbon dioxide reduction
  • nanomaterials
  • wastewater treatment

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Published Papers (1 paper)

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Research

12 pages, 2681 KiB  
Article
Effect of Hydroxyapatite on the Migration of Fe(III) Ions: Kinetic, Equilibrium and Thermodynamic Study
by Qing Ye, Gongming Qian, Lulu Liu, Fu Yang and Wei Liu
Materials 2022, 15(16), 5652; https://doi.org/10.3390/ma15165652 - 17 Aug 2022
Viewed by 1023
Abstract
The recycling and regeneration of Fe(III) is the key point for promoting the oxidation reaction of ore to produce acidic mine drainage (AMD). Hydroxyapatite (HAP) has excellent adsorption ability of Fe(III), which has good biocompatibility and is widely distributed in nature. In order [...] Read more.
The recycling and regeneration of Fe(III) is the key point for promoting the oxidation reaction of ore to produce acidic mine drainage (AMD). Hydroxyapatite (HAP) has excellent adsorption ability of Fe(III), which has good biocompatibility and is widely distributed in nature. In order to achieve the source treatment of AMD, the migration and transformation of Fe(III) in the presence of HAP were systematically investigated. In this study, the influence of HAP on the migration of Fe(III) was evaluated though the transformation capacity of Fe(III) by HAP. The adsorption transformation kinetic, equilibrium and thermodynamics of Fe(III) using HAP were also systematic investigated. The transformation efficiency of Fe(III) increased with the increasing initial pH value and reached 99.8% at a pH of 5 due to the hydrolysis reaction. The transformation efficiency was also up to 99% at an initial pH of 2 when the reaction temperature increased to 313 K. However, the transformation capability of Fe(III) decreases with reaction temperature. The kinetics of the adsorption of Fe(III) fitted the pseudo second order kinetic model. Experimental results were also analyzed by the Langmuir isotherm equations at room temperatures. RL separation factor for Langmuir isotherm showed that the migration of Fe(III) is successfully hindered by HAP. Various thermodynamic parameters such as enthalpy (ΔH), Gibbs free energy (ΔG) and entropy (ΔS) changes were computed, which showed that the transport lag of Fe(III) caused by HAP is spontaneous and endothermic. Full article
(This article belongs to the Special Issue Applications of Catalytic Materials in Energy and Environmental Areas)
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