Characterization of sugarcane bagasse ash (SBA) and its evaluation for use in alkali-activated slag mixtures

Lima, Victor M.E.; Barros, Luciano Cintrão; Neto, Melo

doi:10.1590/0366-69132021673813038

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…Interestingly, the evolution and disappearance of functional groups and the appearance of more prominent groups reveal the incorporation of new functionalities on our samples. The carbonyl group band is present in both (a) (i), (b) (iv) leached samples and (a) (ii), (b) (v) calcined samples however not observed for the silica spectra of both samples in (a) iii and (b) vi, which confirms the successful formation of silica groups, predominant in the material [1,24,[25][26][27]. Similarly, the results obtained for as-produced (vi) silica in Figure 2b showed identical behavior of new functionalities.…”

Section: Ftir Analysismentioning

confidence: 71%

Green Synthesis of Crystalline Silica from Sugarcane Bagasse Ash: Physico-Chemical Properties

2022

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Sugarcane bagasse South Africa is an agricultural waste that poses many environmental and human health problems. Sugarcane bagasse dumps attract many insects that harm the health of the population and cause many diseases. Sugarcane ash is a naturally renewable source of silica. This study presents for the first time the extraction of nanosilica from sugar cane bagasse ash using L-cysteine hydrochloride monohydrate acid and Tetrapropylammonium Hydroxide. The structural, morphological, and chemical properties of the extracted silica nanoparticles was cross examined using XRD, FTIR, SEM, and TGA. SEM analysis presents agglomerates of irregular sizes. It is possible to observe the structure of nanosilica formed by the presence of agglomerates of irregular shapes, as well as the presence of some spherical particles distributed in the structure. XRD analysis has revealed 2θ angles at 20, 26, 36, 39, 50, and 59 which shows that each peak on the xrd pattern is indicative of certain crystalline cubic phases of nanosilica, similar to results reported in the literature by Jagadesh et al. in 2015. The crystallite size estimated by the Scherrer equation based on the aforementioned peaks for ca-silica and L-cys-silica for the extracted particles had an average diameter of 26 nm and 29 nm, respectively. Furthermore, it showed a specific surface area of 21.6511 m2/g and 116.005 m2/g for ca-silica and L-cys silica, respectively. The Infrared (IR) spectra showed peaks at 461.231 cm−1, 787.381 cm−1 and 1045.99 cm−1 which corresponds to the Si~O~Si bending vibration, the Si~O~Si stretch vibration, and the Si~O~Si stretching vibration, respectively. This confirms the successful extraction of nanosilica from sugar cane bagasse ash. TGA analysis has revealed that the as received sugarcane bagasse has high loss on ignition (LOI) of 18%, corresponding to the presence of the unburnt or partial burnt particles, similar to results reported by Yadav et al. This study has shown that sugar cane bagasse ash is a natural resource of silica which should be harnessed for industrial purposes in south Africa.

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Section: Ftir Analysismentioning

confidence: 71%

Green Synthesis of Crystalline Silica from Sugarcane Bagasse Ash: Physico-Chemical Properties

2022

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“…The acid leaching treatment results in the degradation of cellulose and hemicelluloseinspired bonds, thus the resulting cellulose chains generate new hydrogen bonds to replace the removed ones. In essence, improves filler polymer interaction [20].…”

Section: Sem-edx Analysismentioning

confidence: 99%

Sugar Cane Bagasse Ash: An Agricultural Residue with Potential Rubber Filler Applications

Seroka¹,

Taziwa²,

Khotseng³

2023

Application and Characterization of Rubber Materials

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South Africa produces approximately 7 million tons of sugarcane bagasse annually as an agricultural residue, which is treated as waste and its disposal is known to have negative impacts on the environment. To lessen reliance on petroleum and polymers, consideration is given on use of sugarcane bagasse ash as substitute materials for the development of fillers for rubber and other large-scale commodity polymers. This work reports on the mechanical, physiochemical, and structural properties of sugarcane bagasse ash to define the compatibility with the specific polymers that will pave way to the engineering of composites to utilize the potential benefits of these residue-derived fillers. The structural and morphological properties of the untreated and treated sugarcane bagasse ash were performed using XRD, FTIR, and SEM-EDX, respectively. The obtained results confirmed the successful treatment of the sugarcane bagasse ash. The study was successful in showing that sugarcane bagasse ash as potential filler in rubber polymer matrix is a natural resource of silica, which is sustainable and cost-effective, thus should be harnessed for industrial purposes in South Africa.

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Structural behaviour of reinforced concrete beams containing recycled polyethylene terephthalate and sugarcane bagasse ash

Daniel,

Onchiri,

Omondi

2024

Applications in Engineering Science

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Characterization of sugarcane bagasse ash (SBA) and its evaluation for use in alkali-activated slag mixtures

Cited by 6 publications

References 2 publications

Green Synthesis of Crystalline Silica from Sugarcane Bagasse Ash: Physico-Chemical Properties

Green Synthesis of Crystalline Silica from Sugarcane Bagasse Ash: Physico-Chemical Properties

Sugar Cane Bagasse Ash: An Agricultural Residue with Potential Rubber Filler Applications

Structural behaviour of reinforced concrete beams containing recycled polyethylene terephthalate and sugarcane bagasse ash

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