Biochar Development in Catalytic Applications

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

Deadline for manuscript submissions: closed (28 February 2025) | Viewed by 505

Special Issue Editors


E-Mail Website
Guest Editor
College of Natural Resources and Environment, Northwest A&F University, Yangling, China
Interests: biochar; biochar-based catalytic processes; sustainability; emerging contaminants; pollution control chemistry; soil carbon sequestration; advanced oxidation processes (AOPs)

E-Mail Website
Guest Editor
College of Natural Resources and Environment, Northwest A&F University, Yangling, China
Interests: biochar; biochar-based catalytic processes; environmental free radicals; microplastic; organic pollutant control and soil nitrogen turnover

Special Issue Information

Dear Colleagues,

Biochar produced from biomass waste has garnered an increasing amount of attention in the field of catalysis due to its low cost, large surface area, and high tunability. Biochar-based catalysts exhibit superior performance, often surpassing traditional commercial catalysts in the production of value-added chemicals, energy generation, and environmental remediation, bringing a positive global impact. In order to further promote the development of biochar in catalysis, especially in catalytic applications, this Special Issue will focus on the application of biochar in a variety of reactions, including esterification, catalytic reforming, cracking, gasification, pyrolysis, hydrolysis, electrochemical reactions, photocatalysis, persulfate oxidation, and other reactions. Special attention will be given to developing new methods for synthesizing biochar-based catalysts with large-scale application potential.

Given the critical importance of the advanced design and optimization of operating conditions for the performance of biochar catalysts, this Special Issue aims to provide a platform on which world-leading scientists can share their latest research in the biochar catalysis field. We invite the submission of relevant studies (both experimental and theoretical), including original research, review articles, short communications, and perspectives. Potential topics include, but are not limited to, the following:

  • Value-added chemical production;
  • Bio-oil production;
  • Bio-gas production;
  • Electrochemical energy utilization;
  • NOX reduction and ammonia ozonation;
  • Advanced oxidation processes (AOPs) for environmental remediation;
  • Catalytic reduction reactions for environmental remediation.

Dr. Na Chen
Dr. Kecheng Zhu
Guest Editors

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Keywords

  • biochar
  • photocatalysis
  • electrocatalysis
  • thermocatalysis
  • value-added chemicals production
  • energy production
  • environmental remediation

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Published Papers (1 paper)

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Research

19 pages, 6083 KiB  
Article
Microwave-Assisted Biodiesel Production Using Activated Oat Hull-Derived Biochar as Catalyst
by Jaime Ñanculeo, Benjamín Nahuelcura, Mara Cea, Norberto Abreu, Karla Garrido-Miranda, Sebastián Meier, Juan Miguel Romero-García and María Eugenia González
Catalysts 2025, 15(8), 729; https://doi.org/10.3390/catal15080729 (registering DOI) - 31 Jul 2025
Viewed by 139
Abstract
This study investigated the effect of KOH activation on biochar, with a focus on how porosity and potassium content influence microwave-assisted catalytic biodiesel production, using experimental design approaches. Activated biochar was synthesized from oat hull waste through KOH activation, followed by pyrolysis under [...] Read more.
This study investigated the effect of KOH activation on biochar, with a focus on how porosity and potassium content influence microwave-assisted catalytic biodiesel production, using experimental design approaches. Activated biochar was synthesized from oat hull waste through KOH activation, followed by pyrolysis under controlled conditions. The biochar was characterized through chemical, morphological, and physical analyses, and its catalytic performance in converting used waste cooking oil (WCO) into biodiesel was evaluated using methanol as the acyl acceptor and microwave irradiation to optimize the reaction via experimental design. Results revealed that increasing the KOH/biomass ratio significantly enhanced the specific surface area (SSA) of the catalyst, achieving a maximum SSA of 637.28 m2/g under optimal pyrolysis conditions: 600 °C for 3 h with a KOH/biomass ratio of 2. A maximum fatty acid methyl ester (FAME) yield of 100% was achieved within 1 min of microwave-assisted reaction using an optimized catalyst dosage of 2.5%, a WCO/MeOH molar ratio of 1/12, and a reaction temperature of 150 °C, with the catalyst being successfully recycled across three cycles. An economic and energy evaluation estimated a catalyst production cost of USD 176.97/kg and a biodiesel production cost of USD 8.9/kg of FAMEs. This research provides a straightforward and cost-effective approach for biofuel production. Full article
(This article belongs to the Special Issue Biochar Development in Catalytic Applications)
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