Development of food-origin biochars for the adsorption of selected volatile organic compounds (VOCs) for environmental matrices

Kaikiti, Kyriaki; Stylianou, Marinos; Agapiou, Agapios

doi:10.1016/j.biortech.2021.125881

Cited by 17 publications

(6 citation statements)

References 46 publications

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“…The BB has a slight lower thermal stability compared to NB. However, BB and NB are rather thermally stable due to the limited percent weight loss at the temperature ≤250 • C; a similar trend was reported by Kaikiti et al [41].…”

Section: Thermogravimetric Analysis (Tga)supporting

confidence: 83%

The Effect of Different Biochar on the Mechanical Properties of Cement-Pastes and Mortars

Suarez-Riera,

Falliano,

Carvajal

et al. 2023

Buildings

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In recent years, there has been a concerning surge in CO2 emissions, with the construction and materials production sectors standing out as significant contributors to greenhouse gas pollution. To tackle this pressing environmental challenge, architectural design and civil engineering are actively pursuing strategies to mitigate their carbon footprint. These initiatives include adopting eco-friendly construction materials with reduced toxicity, rigorous energy management practices across the entire life cycle of structures, and incorporating innovative materials like biochar. Biochar is a carbon-rich byproduct generated through controlled thermochemical processes, such as pyrolysis or gasification, that stands out for its remarkable capacity to extract energy from processed biomass while delivering substantial environmental advantages. This study examines the use of biochar as a filler in cement-paste and mortar, as well as its influence on mechanical properties. In the case of cementitious pastes, results show that small amounts of biochar (1-2-5% by weight of cement) can improve the compressive and flexural strength, as well as fracture energy, thus generating a more tortuous crack path that increases the final surface area. In mortar specimens, the biochar influence does not show similar patterns or characteristics as the cement-paste in flexural and compressive strengths; nevertheless, biochar particles improve the toughness.

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Section: Thermogravimetric Analysis (Tga)supporting

confidence: 83%

The Effect of Different Biochar on the Mechanical Properties of Cement-Pastes and Mortars

Suarez-Riera,

Falliano,

Carvajal

et al. 2023

Buildings

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show abstract

“…According to the SEM images of Table 4, the PB 350 °C and 550 °C have a honeycomb-like structure with pores/cylindrical channels. In addition, some channels appear on the surface (Kaikiti et al 2021). Also, smaller pore volumes can be observed on the activated samples.…”

Section: Resultsmentioning

confidence: 97%

“…According to Table 1, the increase of pyrolysis temperature from 350 to 550 °C raised significantly the SSA. This may be attributed to incomplete carbonization at lower temperatures and the full degradation of cellulose at higher pyrolysis temperatures which leads to the formation of pores, due to the release of the respective volatile matter (Kaikiti et al 2021) The results derived from the elemental analysis show that the mineral framework of the produced biochars is not the same; it appears that the activation process is strongly affecting initial content. It can be observed that the SSA of activated biochar from Bt/350 o C is bigger than the biochar derived from Bt/550 o C. This can be attributed to the mineral content which may block the pores in the activation process.…”

Section: Resultsmentioning

confidence: 97%

Tomato waste biochar in the framework of circular economy

Stylianou

Terpsithea

Bennici

et al. 2023

Science of The Total Environment

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“…2b). Kaikiti et al 46 synthesized a series of bio-based porous carbons from four fruit sources ( pomegranate peels (PB), prickly pear peels (PPB), carob bean gum (CB) and locust bean gum (LBGB)) by slow pyrolysis (350 °C and 550 °C). The adsorption performance of four volatile organic compounds (VOCs), consisting of cresols, dimethyl trisulfide (DMTS), hexane, and benzene, was systematically and comprehensively compared.…”

Section: Perspective Dalton Transactionsmentioning

confidence: 99%