Graphitization of olive mill waste biomass by pyrolysis for H2, CH4 and CO2 gas detection

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-03-05 DOI:10.1016/j.mseb.2025.118193

Amira Siai , Mariem Ben Abdallah , Guseppe Conte , Houda Nsir , Alfonso Policicchio

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引用次数: 0

Abstract

A graphitized adsorbent of CO₂, CH₄ and H₂ gases is prepared from pre-treated olive mill waste using pyrolysis method under N₂ atmosphere. This organic adsorbent is found to have a large surface area of 1571 m²/g and high pore volume of 1.04 cm³/g. The isotherms analysis by using Brunauer-Emmett-Teller (BET) method revealed that the aforementioned adsorbent exhibits mesopore structure coexisting with a microporous framework. Thanks to these textural properties, gases uptakes of this adsorbent at 298 K and 20 bars reach 5.62, 12.72 and 0.08 mmol/g for CH₄, CO₂ and H₂, respectively, which are among the highest levels compared to other solids (zeolites, metal organic framework). The adsorption–desorption cycles performed for CH₄, CO₂ and H₂ gases were found to be reversible indicating a possible and easily regeneration of the adsorbent. Considering all these advantages about low costs graphitization, great uptake of various gases, good physicochemical stability and reversibility, this adsorbent can be a promising candidate for gases storage.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.