Highly efficient adsorption of cationic dye by biochar produced with Korean cabbage waste

Sewu, Divine Damertey; Boakye, Patrick; Woo, Seung Han

doi:10.1016/j.biortech.2016.11.009

Cited by 239 publications

(72 citation statements)

References 31 publications

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“…3 Various types of watertreatment techniques, including adsorption, 4 coagulation, 5 photodegradation, 6 chemical oxidation 7 and electrochemical oxidation, 8 have been reported. Among these techniques, adsorption is an efficient and convenient way to remove dyes.…”

Section: Introductionmentioning

confidence: 99%

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Huang

Peng

et al. 2018

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Huang

Peng

et al. 2018

RSC Adv.

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“…Due to the fact that biochar-based materials exhibit adsorption properties (Safarik et al 2016;Sewu et al 2017), possible adsorption of the colored reaction product on biochars need to be also considered. To test the ability of biochars to adsorb the oxidized co-substrate DPD, samples with lower peroxidase-like activity were tested by incubation with the purple-colored reaction product formed by sample OL6.…”

Section: Determination Of Peroxidase-like Activitymentioning

confidence: 99%

Biochars and their magnetic derivatives as enzyme-like catalysts mimicking peroxidases

Šafařı́k

Procházková

Baldíková

et al. 2020

Biochar

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Various materials have been extensively investigated to mimic the structures and functions of natural enzymes. We describe the discovery of a new catalytic property in the group of biochar-based carbonaceous materials, which are usually produced during biowaste thermal processing under specific conditions. The tested biochars exhibited peroxidase-like catalytic activity. Biomaterial feedstock, pyrolysis temperature, size of resulting biochar particles or biochar modification (e.g., magnetic particles deposition) influenced the peroxidase-like activity. Catalytic activity was measured with the chromogenic organic substrates N,N-diethyl-p-phenylenediamine (DPD) or 3,3′,5,5′-tetramethylbenzidine (TMB), in the presence of hydrogen peroxide. Magnetic biochar composite was studied as a complementary material, in which the presence of iron oxide particles enhances catalytic activity and enables smart magnetic separation of catalyst even from complex mixtures. The activity of the selected biochar had an optimum at pH 4 and temperature 32 °C; biochar catalyst can be reused ten times without the loss of activity. Using DPD as a substrate, K m values for native wood chip biochar and its magnetic derivative were 220 ± 5 μmol L −1 and 690 ± 80 μmol L −1 , respectively, while V max values were 10.1 ± 0.3 μmol L −1 min −1 and 16.1 ± 0.4 μmol L −1 min −1 , respectively. Biochar catalytic activity enabled the decolorization of crystal violet both in the model solution and the fish pond water containing suspended solids and dissolved organic matter. The observed biochar enzyme mimetic activity can thus find interesting applications in environmental technology for the degradation of selected xenobiotics. In general, this property predestines the low-cost biochar to be a perspective supplement or even substitution of common peroxidases in practical applications.

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“…Adsorption tests were conducted using different dosages of HFC and HFC@CO (1-5 g L À1 ) for cationic dyes (CV or MG) and anionic dyes (SY, LY, or CM) in a conical ask containing 250 mL of the dye solution (50-500 mg L À1 ) at various pH values (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12) and temperature (5-50 C). The change in dye concentration was measured at certain time intervals (1,3,5,10,15,20,30,50,70, and 90 min).…”

Section: Adsorption Experimentsmentioning

confidence: 99%

“…Materials that have been tested for this purpose include chitin, de-oiled soya, mangrove bark, peanut hull, modied tilapia sh scales, grapefruit peel, citric acid-esterifying wheat straw, opal dye sludge, orange peel, sulfuric acid-activated rice husk carbon, and biocomposite. [20][21][22][23][24][25][26][27][28][29][30] Various Chrysanthemums are cultivated in China, including Huai Flos Chrysanthemum (HFC), which has high medicinal value and can be used directly or, most commonly, used as a tea. 31 The output of HFC is about 1500 tons in china each year, and about 1000 tons of HFC are discarded aer use.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of anionic and cationic dyes via raw and chitosan oligosaccharide-modified Huai Flos Chrysanthemum at different temperatures

et al. 2019

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Highly efficient adsorption of cationic dye by biochar produced with Korean cabbage waste

Cited by 239 publications

References 31 publications

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Biochars and their magnetic derivatives as enzyme-like catalysts mimicking peroxidases

Biosorption of anionic and cationic dyes via raw and chitosan oligosaccharide-modified Huai Flos Chrysanthemum at different temperatures

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