Effect of Activating Agent on the Preparation of Bamboo-Based High Surface Area Activated Carbon by Microwave Heating

Xia, Hongying; Wu, Jian; Srinivasakannan, C.; Peng, Jinhui; Zhang, Libo

doi:10.1515/htmp-2014-0228

Cited by 11 publications

(7 citation statements)

References 39 publications

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“…e pores on the surface could be macropores which lead to the branching micropores in the interiors of the activated carbon [25]. Figure 1(b) shows the changes in some parts of the surface particles with native biosorbent which depicts that Pb (II) ion has deposited as aggregates in the AASAC1.…”

Section: Sem Analysis Of Aasac1mentioning

confidence: 99%

“…e percentage of metal sorbed increases with an increase in adsorbent dose for the heavy metals [37]. Since the quantity of metal ion is constant, an increase in the amount of adsorbent above a quantity that can completely adsorb the available metal ion had no apparent effect on a further increase of percent adsorption [25]. e percentage removals of metal increase rapidly with an increase in the dose of the adsorbents due to the greater availability of the exchangeable sites or surface area [38].…”

Section: Effects Of Aasac1 Dose On Removal Efficiency Of Pb (Ii)mentioning

confidence: 99%

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Adsorption Phenomenon of Arundinaria alpina Stem-Based Activated Carbon for the Removal of Lead from Aqueous Solution

Asrat

Adugna

Kamaraj

et al. 2021

Journal of Chemistry

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In this study, activated carbon was prepared from locally available bamboo (Arundinaria alpina) in Ethiopia to remove Pb (II) from wastewater. Various effects such as solution pH, initial Pb (II) ion concentration, and adsorbent dose were investigated and accordingly discussed, and the process was carried out on a batch adsorption base. Dried Arundinaria alpina stem was activated with potassium hydroxide (KOH) at a ratio of 1 : 1 (w/v) and carbonized in a furnace at three temperature ranges (500oC, 600oC, and 700oC) for 3 h. The physicochemical of Arundinaria alpina stem activated carbon (AASAC) was investigated and the resultant of 500oC treatment setup is found as ideal in terms of yield (40.6 g), ash (3.5%), porosity (0.704%), moisture (7.7%), and iodine number (814.69 mg/g). The further characterization of ideal AASAC was carried out by scanning electron microscopy (SEM), X-ray diffraction (XRD) spectroscopy, and Fourier transform infra-red (FTIR). The optimum Pb (II) removal efficiency of AASAC was 99.8% at pH 5 in a synthetic solution, but the efficiency declined to 60.42% on real industrial wastewater due to the presence of its mixed pollutant nature. Freundlich isotherm model is more favorable than Langmuir with a high correlation coefficient (R2-0.9496) for Pb (II) adsorption. The study revealed that AASAC has a potential adsorption efficiency to remove the Pb (II) ion from the aqueous solution which is also recommended as an adsorbent for real industry wastewater treatment.

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Section: Sem Analysis Of Aasac1mentioning

confidence: 99%

Section: Effects Of Aasac1 Dose On Removal Efficiency Of Pb (Ii)mentioning

confidence: 99%

Adsorption Phenomenon of Arundinaria alpina Stem-Based Activated Carbon for the Removal of Lead from Aqueous Solution

Asrat

Adugna

Kamaraj

et al. 2021

Journal of Chemistry

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“…Another intriguing study by Xia et al [ 48 ] advocated microwave heating for converting bamboo into a large surface area of activated carbon. Various chemical activators were used to determine the best activating agent.…”

Section: The Uniqueness Of Bamboo For Obtaining Charcoal and Biocharmentioning

confidence: 99%

“…According to the SEM result, the pore structure was highly developed of activated carbon. FTIR was used to confirm that several functional groups were present on the activated carbon's surface [ 48 ].…”

Section: The Uniqueness Of Bamboo For Obtaining Charcoal and Biocharmentioning

confidence: 99%

Bamboo for producing charcoal and biochar for versatile applications

Chaturvedi

Singhwane

Dhangar

et al. 2023

Biomass Conv. Bioref.

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Bamboo, the fastest-growing plant, has several unique characteristics that make it appropriate for diverse applications. It is low-cost, high-tensile, lightweight, flexible, durable, and capable of proliferating even in ineffectual areas (e.g., incline). This review discusses the unique properties of bamboo for making charcoal and biochar for diverse applications. To produce bamboo charcoal and biochar, this study reports on the pyrolysis process for the thermal degradation of organic materials in an oxygen-depleted atmosphere under a specific temperature. This is an alternative method for turning waste biomass into products with additional value, such as biochar. Due to various advantages, bamboo charcoal is preferred over regular charcoal as it has four times the absorption rate and ten times more surface area reported. According to the reports, the charcoal yield ranges from 24.60 to 74.27%. Bamboo chopsticks were the most useful source for producing charcoal, with a high yield of 74.27% at 300 °C in nitrogen, but the thorny bamboo species have a tremendous amount of minimal charcoal, i.e., 24.60%. The reported biochar from bamboo yield ranges from 32 to 80%. The most extensive biochar production is produced by the bamboo D. giganteus , which yields 80% biochar at 300 °C. Dry bamboo stalks at 400 °C produced 32% biochar. One of the sections highlights biochar as a sustainable solution for plastic trash management produced during the COVID-19 pandemic. Another section is dedicated to the knowledge enhancement about the broad application spectrum of the charcoal and biochar. The last section highlights the conclusions, future perspectives, and recommendations on the charcoal and biochar derived from bamboo. Graphical Abstract

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“…Based on the fact that the activating agents potassium hydroxide (KOH) performed much better than the other activating agent in terms of its ability to produce very high surface area carbon. KOH was found to generate carbon with the highest porosity and surface area [14]. A number of studies have been carried out to using KOH as an activating agent.…”

Section: Introductionmentioning

confidence: 99%

Study of Dielectric and Adsorption Properties of Activated Carbon Prepared from Water Hyacinth using KOH as an Activating Agent

Ghiffari

Maulina

Nugroho

2020

CERiMRE

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Activated carbon can be produced from the combustion of a materials containing carbon that has been activated using activator substances. In this paper, potassium hydroxide (KOH) was selected as an activating agent. The influence of KOH concentration was investigated to determine the dielectric and adsorption properties of activated carbon derived from water hyacinth. Drying water hyacinth was carbonize in the furnace at a temperature of 400°C followed by chemical activation with variation concentration of KOH solution that used are 25%, 30%, and 35% (w/v) respectively. The results show that the best activated carbon derived from water hyacinth was obtained using 35% (w/v) KOH solution as an activating agent with the dielectric constant is 4,04 while iodine number of 514,6 mg/g.

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Effect of Activating Agent on the Preparation of Bamboo-Based High Surface Area Activated Carbon by Microwave Heating

Cited by 11 publications

References 39 publications

Adsorption Phenomenon of Arundinaria alpina Stem-Based Activated Carbon for the Removal of Lead from Aqueous Solution

Adsorption Phenomenon of Arundinaria alpina Stem-Based Activated Carbon for the Removal of Lead from Aqueous Solution

Bamboo for producing charcoal and biochar for versatile applications

Study of Dielectric and Adsorption Properties of Activated Carbon Prepared from Water Hyacinth using KOH as an Activating Agent

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