Application of high-grade carbon produced from tyre waste using advanced thermo-chemical technology

Sharma, Anita; Sharma, Abhishek; Joshi, Jyeshtharaj B.; Jain, Rakesh; Kasilingam, Rajkumar

doi:10.1016/j.matpr.2021.01.589

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…Also, a broad band located between 2500 – 3000 cm −1 and associated to the 2D band of graphitic sp 2 material can be seen in the spectra (Dresselhaus et al 2010 ). Similar Raman spectra were previously obtained for tire derived chars attributed mainly to the carbon black present in these carbonaceous samples (Kumar et al 2018 ; Sharma et al 2021 ). The spectra of CA and CB samples and their resulting H 3 PO 4 activated chars present G bands of higher intensity than the D bands indicating a more ordered structure.…”

Section: Resultssupporting

confidence: 86%

Valorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economy

Bernardo

Lapa

Pinto

et al. 2023

Environ Sci Pollut Res

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Spent tire rubber-derived chars and their corresponding H3PO4 and CO2-activated chars were used as adsorbents in the recovery of Pb(II) ion and (W(VI)) oxyanion from synthetic solutions. The developed chars (both raw and activated) were thoroughly characterized to have insight about their textural and surface chemistry properties. H3PO4-activated chars presented lower surface areas than the raw chars and an acidic surface chemistry which affected the performance of these samples as they showed the lowest removals of the metallic ions. On the other hand, CO2-activated chars presented increased surface areas and increased mineral content compared to the raw chars, having presented higher uptake capacities for both Pb(II) (103–116 mg/g) and W(VI) (27–31 mg/g) ions. Cation exchange with Ca, Mg and Zn ions was appointed as a mechanism for Pb removal, as well as surface precipitation in the form of hydrocerussite (Pb3(CO3)2(OH)2). W(VI) adsorption might have been ruled by strong electrostatic attractions between the negatively charged tungstate species and the highly positively charged carbons’ surface.The results shown in this work allow concluding that the valorisation of spent tire rubber through pyrolysis and the subsequent activation of the obtained chars is an alternative and a feasible option to generate adsorbent materials with a high uptake capacity of critical metallic elements.

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Section: Resultssupporting

confidence: 86%

Valorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economy

Bernardo

Lapa

Pinto

et al. 2023

Environ Sci Pollut Res

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“…The main work in this research is to separate the carbon material (soot) from TW using the pyrolysis method [18], followed by making a carbon-based Hg sensor for the voltammetry method and measuring the sensor capacitance in the analysis of Hg in water. The research objectives were to obtain carbon material from TW, to characterize carbon material by XRD and SEM, to determine the electrochemical response to mercury in water by calculating LoD and LoQ and to test the Hg detection capability of the voltammetry method on natural water samples.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of mercury (Hg) sensor based on Tire Waste (TW) carbon electrode and voltammetry technique

Baihaqi,

Suhud,

Alva

et al. 2023

Sinergi

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Voltammetry is widely used to detect heavy metals such as mercury (Hg). The sensor material influences the results of the voltammetry method. Carbon-based sensors are commonly developed because of their wide potential range, low background current, inexpensive, inert, and suitable for various sensors. Recently, Tire Waste (TW) was chosen as a carbon source for the manufacture of electrodes because it is rich in carbon (88%). The material is easy to obtain, green technology and a carbon source that has not been properly utilized. Separation of carbon material from TW using the pyrolysis method produces 4.32 gr (2.6%) of soot (from 200 gr TW) as a material for making carbon-based Hg sensors. The XRD pattern of TW soot has amorphous phases. SEM topography shows that the surface of TW soot consists of particles that are almost uniform in shape. The estimated particle size is about 0.25 µm. The sensor was made with a mixture of TW soot and paraffin with a 2:1 ratio. Testing the specific value of sensor capacitance using the Cyclic Voltammetry (CV) method showed the presence of cathodic and anodic currents. The Hg deposit occurred at a peak cathodic current at a scan rate of 20 mV/s. The Limit of Detection (LoD) value is 0.0681 ppm and the Limit of Quantitation (LoQ) is 0.229 ppm. Measurement of Hg in natural water samples used river water from the Aceh Jaya sub-district at two points representing the upstream and downstream of the river. The Hg concentrations obtained were 0.000536 ppm and 0.00182 ppm, respectively and were compared with the inspection results using Atomic Absorbance Spectroscopy (AAS), 0.00058 ppm and 0.00186 ppm, respectively. The t-test results of the two Hg measurement methods at a significance level (α) of 5% obtained tcount > ttable (0.0208 <2.306), indicating that there is a significant difference between the two Hg concentration measurement methods for natural water.

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Valorisation of End-of-Life tyres for generating valuable resources under circular economy

Sharma¹,

Sawant

Sharma

et al. 2022

Fuel

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Application of high-grade carbon produced from tyre waste using advanced thermo-chemical technology

Cited by 6 publications

References 7 publications

Valorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economy

Valorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economy

Fabrication of mercury (Hg) sensor based on Tire Waste (TW) carbon electrode and voltammetry technique

Valorisation of End-of-Life tyres for generating valuable resources under circular economy

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