Thermal recycling strategy of Coca-Cola PVC label films by its co-carbonization with Terminalia ivorensis leaves

Adeniyi, Adewale George; Amusa, Victor Temitope; Iwuozor, Kingsley O.; Emenike, Ebuka Chizitere

doi:10.1016/j.clet.2022.100564

Cited by 33 publications

(7 citation statements)

References 34 publications

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“…The techniques include Fourier transform infrared (FTIR) spectroscopy, Scanning electron microscopy coupled with energy dispersive X‐ray spectroscopy (SEM–EDX), Differential thermal analysis/thermogravimetric analysis (DTA/TGA), and Branueur‐Emmett–Teller (BET) analysis. The FTIR (Shimadzu, FTIR‐8400 S, Japan) was used to qualitatively ascertain the functional groups and complexes present in the biochars, with the spectra obtained in the transmittance range of 4000–650 cm −1 35 . DTA/TGA analysis was carried out on the biochars to determine their thermal characteristics using the PerkinElmer simultaneous thermal analyzer according to the ASTM E1131 standard test method.…”

Section: Methodsmentioning

confidence: 99%

“…The FTIR (Shimadzu, FTIR-8400 S, Japan) was used to qualitatively ascertain the functional groups and complexes present in the biochars, with the spectra obtained in the transmittance range of 4000-650 cm À1 . 35 DTA/TGA analysis was carried out on the biochars to determine their thermal characteristics using the PerkinElmer simultaneous thermal analyzer according to the ASTM E1131 standard test method. The aluminum pan was filled with 10 mg of the composite sample.…”

Section: Biochar Characterizationmentioning

confidence: 99%

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Valorization of waste biaxially‐oriented polypropylene plastic films by its co‐carbonization with almond leaves

Adeniyi

Amusa²,

Iwuozor

et al. 2023

Env Prog and Sustain Energy

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This study utilized the top-lit updraft technology for the co-carbonization of waste biaxially-oriented polypropylene (BOPP) and almond leaves (Terminalia catappa) for the production of hybrid biochar, which was then further characterized. Biochar was also synthesized and characterized using the almond leaves alone, as it served as control for the study. The carbonization process, which ran for 100 min, gave a yield of 39.4% and 33.9% for biochar and hybrid biochar, respectively. FTIR spectra showed the presence of functional groups such as amine and carbonyl groups in the hybrid biochar. EDX results showed that the hybrid biochar contained about 57.3% carbon, in combination with other elements. SEM micrographs confirmed the presence of the plastic in the hybrid biochar. In addition, the hybrid biochar had a BET surface area of 366.8 m 2 /g and a pore diameter of 2.093 nm. DTA/TGA analysis showed that the presence of the plastics decreased the thermal stability of the hybrid biochar. This study supports the use of Terminalia catappa leaves as a reliable precursor for the synthesis of biochar and hybrid biochar.

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Section: Methodsmentioning

confidence: 99%

Section: Biochar Characterizationmentioning

confidence: 99%

Valorization of waste biaxially‐oriented polypropylene plastic films by its co‐carbonization with almond leaves

Adeniyi

Amusa²,

Iwuozor

et al. 2023

Env Prog and Sustain Energy

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“…Ghana’s economy benefited from exports of timber and timber products worth 73.35 million US dollars in 2021 and 134 million US dollars in 2020 [ 7 ]. The yellow extract from the bark is used as dye in the textile industry while the leaves have been reported to be a good material for producing conductive composites and an adsorbent for the sequestration of pollutants from the environment [ 4 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Season, storage and extraction method impact on the phytochemical profile of Terminalia ivorensis

et al. 2023

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Background Terminalia ivorensis (TI) is used in West African ethnomedicine for the treatment of conditions including ulcers, malaria and wounds. Despite its widespread use, the phytochemical profile of TI remains largely undetermined. This research investigated the effects of extraction method, season, and storage conditions on the phytochemical composition of TI to contribute towards understanding the potential benefits. Methods TI bark was collected in September 2014, September 2018 and February 2018 during the rainy or dry seasons in Eastern Region, Ghana. Samples were extracted sequentially with organic solvents (petroleum ether, chloroform, ethyl acetate and ethanol) or using water (traditional). Metabolites were identified by liquid chromatography–mass spectrometry/mass spectrometry and compared statistically by ANOVA. Results A total of 82 different phytochemicals were identified across all samples. A greater yield of the major phytochemicals (44%, p < 0.05) was obtained by water as compared with organic extraction. There was also a higher concentration of metabolites present in cold (63%, p < 0.05) compared with hot water extraction. A significantly (p < 0.05) higher number of phytochemicals were identified from TI collected in the dry (85%) compared to the rainy season (69%). TI bark stored for four years retained 84% of the major phytochemicals. Conclusion This work provides important information on composition and how this is modified by growing conditions, storage and method of extraction informing progress on the development of TI as a prophylactic formulation or medicine.

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“…1,2 Recent use of retort-heated, top-lit updraft reactors has underscored the potential of biomass-fuel-powered thermo-chemical processing of waste biomass into biochar and other value-added products without recourse to the use of electricity. 3,4 It is a technology well suited for developing economies. 5,6 Depending on the type of thermochemical technique employed, biochar, syngas, and bio-oil are the major products of this process.…”

Section: Introductionmentioning

confidence: 99%

“…Thermochemical techniques like gasification, pyrolysis, and hydrothermal processes have the potential to treat wastes in ways that have few adverse effects on the ecology and create valuable products in a variety of forms that have uses in energy production and soil nutrient recycling 1,2 . Recent use of retort‐heated, top‐lit updraft reactors has underscored the potential of biomass‐fuel‐powered thermo‐chemical processing of waste biomass into biochar and other value‐added products without recourse to the use of electricity 3,4 . It is a technology well suited for developing economies 5,6 .…”

Section: Introductionmentioning

confidence: 99%

Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

Adeniyi

Iwuozor

Emenike

2022

Biofuels Bioprod Bioref

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African balsam (Daniella oliveri) leaves and cow dung are waste materials that are commonly accessible in Africa and can be used to produce biochar by simultaneous thermochemical processing. In this study, biochar was produced in a retort‐heated, non‐electrically powered, top‐lit updraft reactor using the biomass fuel‐powered thermochemical conversion of dried cow dung and African balsam leaves at an average temperature of 320 °C. The biochar was characterized using Fourier transform infrared spectroscopy (FTIR), energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), differential thermal analysis/thermogravimetric analysis (DTA/TGA), and Brunauer–Emmett–Teller (BET) analyses. After carbonization for 100 min, biochar was obtained from processed mixed leaves/cow dung with a yield of 70%. Fourier transform infrared analysis showed the presence of alkene, hydroxyl, alkyne, alkane, and sulfur‐containing functional groups. Scanning electron micrographs showed that the biochar's surface was made up of fibrillated particles with very few pores. The biochar was observed to have a surface area of 328.199 m2/g with a higher pore volume and lower pore size than biochar produced from cow dung alone. Energy dispersive spectroscopy showed that the biochar is mostly made up of carbon (67%), and that the introduction of the leaves into the biochar feedstock increased its carbon, silicon, potassium, and bromine content. Differential thermal analysis/thermogravimetric analyses revealed the biochar to be thermally stable. The findings of this study are helpful for attempts to manage solid wastes (African balsam leaves and cow dung), reduce environmental pollution, and produce biochar whose properties are adequate for it to be used as a soil additive. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Thermal recycling strategy of Coca-Cola PVC label films by its co-carbonization with Terminalia ivorensis leaves

Cited by 33 publications

References 34 publications

Valorization of waste biaxially‐oriented polypropylene plastic films by its co‐carbonization with almond leaves

Valorization of waste biaxially‐oriented polypropylene plastic films by its co‐carbonization with almond leaves

Season, storage and extraction method impact on the phytochemical profile of Terminalia ivorensis

Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

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