May 29, 2023
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Article

Production of AC from Bamboo, Orange, and Paulownia Waste—Influence of Activation Gas and Biomass Maturation

Publicated to: MATERIALS. 16 (9): 3498- - 2023-05-01 16(9), DOI: 10.3390/ma16093498

Authors:

Grima-Olmedo, C; Valle-Falcones, LM; Galindo, DGL; Esparver, RRP
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Affiliations

Univ Politecn Madrid, Escuela Tecn Super Ingn Minas & Energia, Dept Ingn Geol & Min, Madrid 28003, Spain - Author
Univ Politecn Madrid, Tecminergy, Getafe 28906, Spain - Author
Universidad Politécnica de Madrid - Author
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Abstract

The production of agricultural waste is associated with environmental problems and risks to public health. The general interest demands, as an ecological alternative, the proper management of waste generated by industrial activity through its transformation into value-added products. Carbonization/activation (2 h/2 h) at 700 °C in a vertical furnace (20 K/min), to produce biochar and activated carbon (AC) from bamboo, orange, and paulownia residue, was carried out in a laboratory facility with physical activation by CO2 and steam. The characterization of the carbonaceous material obtained was based on the determination of the N2 adsorption–desorption isotherms at 77 K, the specific surface area with the BET procedure, and its internal structure by means of SEM images. The BET surface area values obtained as a function of the CO2/steam agent used were 911/1182 m2/g, 248/388 m2/g, and 800/1166 m2/g for bamboo, orange, and paulownia, respectively. The range of variation of porosity in paulownia residue generated after steam activation was 485–1166 m2/g, varying depending on the degree of maturity of the biomass used. Research has shown that both the type of activation agent used to produce AC and the degree of plant maturation of the precursor residue affect the quality and characteristics of the final product.
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Keywords

activationadsorptioncarbon-dioxidecarbonizationheavy-metal ionsmaturityporous structurepyrolysisremovalsteamsurface-areavalorizationvertical furnacewaterActivationAgricultural by-productsAgricultural wasteCarbonizationMaturityValorizationVertical furnace

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal MATERIALS due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position 20/90, thus managing to position itself as a Q1 (Primer Cuartil), in the category Metallurgy & Metallurgical Engineering.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations from Scopus Elsevier, it yields a value for the Field-Weighted Citation Impact from the Scopus agency: 1.52, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2026-04-27, the following number of citations:

  • WoS: 7
  • Scopus: 10
  • Europe PMC: 1
  • Google Scholar: 5
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Impact and social visibility

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/85217/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 120
  • Downloads: 81
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (GRIMA OLMEDO, CARLOS) and Last Author (Esparver RRP).

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