Enhancing the adsorption capability of areca leaf biochar for methylene blue by K<sub>2</sub>FeO<sub>4</sub>-catalyzed oxidative pyrolysis at low temperature

Yin, Zhibing; Liu, Nian; Bian, Siyao; Li, Jihui; Xu, Song; Zhang, Yucang

doi:10.1039/c9ra06592j

Cited by 14 publications

(7 citation statements)

References 54 publications

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“…Table 1 shows the adsorption properties for cationic dye uptake onto unmodified biochars. MG [99][100][101][102][103], MB [104][105][106][107][108][109], rhodamine B (Rh B) [99], basic red 9 (BR 9), and CV [103,110] values are included in the data. Many citations only present the quantity of dye removed (in %) [99,100,104,106,110,111], which is valuable, however, this value varies with adsorbent quantity, dye concentration, and adsorbate volume.…”

Section: Biochar As a Dye Removal Adsorbentmentioning

confidence: 99%

“…MG [99][100][101][102][103], MB [104][105][106][107][108][109], rhodamine B (Rh B) [99], basic red 9 (BR 9), and CV [103,110] values are included in the data. Many citations only present the quantity of dye removed (in %) [99,100,104,106,110,111], which is valuable, however, this value varies with adsorbent quantity, dye concentration, and adsorbate volume. MB adsorption capacities (Table 1) are 110, 150, 38, and 195 mg/g for biochar materials derived from microalgae [105], Wodyetia [107], and switchgrass at 873 and 1173 K [45,108], respectively.…”

Section: Biochar As a Dye Removal Adsorbentmentioning

confidence: 99%

“…The sulfur-doped tapioca skin was coated with chitosan at 873 K, which raised the dye absorption capabilities to 50 mg/g for MG and 40 mg/g for Rh B, respectively [145]. Unaltered areca plant biochar showed an MG capacity of 190 mg/g [106]. After activating with K 2 FeO 4 , the adsorption potential of biochar prepared from wakame increased to 250 mg/g.…”

Section: Dye Removal Using Adsorption Onto Modified Biocharsmentioning

confidence: 99%

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A Review of the Removal of Dyestuffs from Effluents onto Biochar

et al. 2022

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The study provides a review of various applications of biomass-derived biochars, waste-derived biochars, and modified biochars as adsorbent materials for removing dyestuff from process effluents. Processing significant amounts of dye effluent discharges into receiving waters can supply major benefits to countries which are affected by the water crisis and anticipated future stress in many areas in the world. When compared to most conventional adsorbents, biochars can provide an economically attractive solution. In comparison to many other textile effluent treatment processes, adsorption technology provides an economic, easily managed, and highly effective treatment option. Several tabulated data values are provided that summarize the main characteristics of various biochar adsorbents according to their ability to remove dyestuffs from wastewaters.

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Section: Biochar As a Dye Removal Adsorbentmentioning

confidence: 99%

Section: Biochar As a Dye Removal Adsorbentmentioning

confidence: 99%

Section: Dye Removal Using Adsorption Onto Modified Biocharsmentioning

confidence: 99%

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A Review of the Removal of Dyestuffs from Effluents onto Biochar

et al. 2022

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“…Balonek et al demonstrated that with the addition of Pt/α-Al 2 O 3 sphere catalyst, the oxidative pyrolysis of cellulose in a fixed bed reactor could run autothermally to produce high yields of bio-oil with no observable char formation. More recently, Yin et al , introduced K 2 FeO 4 to the pomelo peel pyrolysis process to produce magnetic biochar. They claimed that K 2 FeO 4 could not only be the precursor of magnetic iron oxide but also an internal oxidative modifier due to its strong oxidizing capability.…”

Section: Concept Of Autothermal Pyrolysis Of Biomassmentioning

confidence: 99%

Fundamental Advances in Biomass Autothermal/Oxidative Pyrolysis: A Review

Huang

Liu

et al. 2020

ACS Sustainable Chem. Eng.

139

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Pyrolysis is an important thermochemical route to decompose lignocellulose biomass into biogas, bio-oil, and biochar, which can be then converted into value-added biofuels, chemicals, and biomaterials. Conventionally, the pyrolysis reaction is carried out under inert atmosphere. The quality of biocrudes and biochars from the conventional pyrolysis could significantly vary, depending on the types of feedstocks and reaction conditions. After intensive studies on the conventional biomass pyrolysis for decades, the external heat supply for the endothermic pyrolytic reactions is still one of the most important roadblocks to inhibit the scale-up and commercialization of biomass pyrolysis technologies. Different from the pyrolysis under inert gas atmosphere, autothermal pyrolysis tends to depolymerize the biomass (polymers) with restricted supply of oxygen/air, also called oxidative pyrolysis. The presence of oxygen in the pyrolyzer will induce the exothermic char-oxygen and/or volatile-oxygen reactions, thus in situ providing the heat for the primary thermal degradation of biomass and the subsequent secondary reactions. Besides the change in product distributions, the key advantage of autothermal pyrolysis is its self-sustainability in terms of heat supply and requirement, facilitating the ease of further scaling up. This review will thus mainly focus on the sum of the recent advances in autothermal pyrolysis and also discuss some innovative pathways for improving/adjusting the product quality.

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“…The presence of dyes in water bodies poses a major threat to human health and aquatic organisms. Methylene Blue (MB) is an organic dye that has been widely used in printing industries for coloring paper, clothes, and plastics [1][2][3]; however, its improper disposal in the environment can cause a series of problems for the environment and human health due to its potential mutagenic and carcinogenic effect and great ability to color ecosystems [4,5].…”

Section: Introductionmentioning

confidence: 99%

How the Carbonization Time of Sugarcane Biomass Affects the Microstructure of Biochar and the Adsorption Process?

Fonseca¹,

Oliveira²,

Martins³

et al. 2022

Sustainability

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Biochars (BCs) are very versatile adsorbents, mainly, in the effectiveness of adsorption of organic and inorganic compounds in aqueous solutions. Here, the sugarcane biomass (SCB) was used to produce biochar at different carbonization times: 1, 2, 3, 4, and 5 h, denominated as BC1, BC2, BC3, BC4, and BC5, respectively. The superficial reactivity was studied with adsorption equilibrium experiments and kinetics models; Methylene Blue (MB) was used as adsorbate at different pH values, concentrations, and temperatures. In summary, the carbonization time provides the increase of superficial area, with exception of BC4, which decreased. Equilibrium studies showed inflection points and fluctuations with different initial dye concentration and temperature; SCB showed the best adsorption capacity compared to the BCs at the three temperatures tested, varying with the increase of MB concentration, suggesting the dependence of these two main factors on the adsorption process. The proposed adsorption mechanism suggests the major influence of Coulomb interactions, H-bonding, and π-interactions on the adsorption of MB onto adsorbents, evidencing that the adsorption is led by physical adsorption. Therefore, the results led to the use of the SCB without carbonization at 200 °C, saving energy and more adsorbent mass, considering that the carbonization influences weight loss. This study has provided insights of the use of SCB in MB dye adsorption as a low-cost and eco-friendly adsorbent.

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Enhancing the adsorption capability of areca leaf biochar for methylene blue by K₂FeO₄-catalyzed oxidative pyrolysis at low temperature

Abstract: A K2FeO4-catalyzed pyrolysis was developed for improving the adsorption capability of areca leaf biochar for methylene blue.

Cited by 14 publications

References 54 publications

A Review of the Removal of Dyestuffs from Effluents onto Biochar

A Review of the Removal of Dyestuffs from Effluents onto Biochar

Fundamental Advances in Biomass Autothermal/Oxidative Pyrolysis: A Review

How the Carbonization Time of Sugarcane Biomass Affects the Microstructure of Biochar and the Adsorption Process?

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Enhancing the adsorption capability of areca leaf biochar for methylene blue by K2FeO4-catalyzed oxidative pyrolysis at low temperature

Abstract: A K2FeO4-catalyzed pyrolysis was developed for improving the adsorption capability of areca leaf biochar for methylene blue.

Cited by 14 publications

References 54 publications

A Review of the Removal of Dyestuffs from Effluents onto Biochar

A Review of the Removal of Dyestuffs from Effluents onto Biochar

Fundamental Advances in Biomass Autothermal/Oxidative Pyrolysis: A Review

How the Carbonization Time of Sugarcane Biomass Affects the Microstructure of Biochar and the Adsorption Process?

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Enhancing the adsorption capability of areca leaf biochar for methylene blue by K₂FeO₄-catalyzed oxidative pyrolysis at low temperature