Adsorption of Ag+ ions on hydrolyzed lignocellulosic materials based on willow, paulownia, wheat straw and maize stalks

Vassileva, Paunka; Radoykova, T.; Detcheva, Albena; Avramova, I.; Aleksieva, Katerina; Nenkova, S.; Valchev, Ivo; Mehandjiev, D.

doi:10.1007/s13762-016-0970-y

Cited by 34 publications

(17 citation statements)

References 42 publications

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“…Farm straw is also a promising raw material for active carbon production, mainly due to its ability to avoid environmental pollution through combustion. Activated carbons based on rice [ 149 ], wheat [ 150 ], sesame [ 151 ] and maize straw [ 152 ] were obtained.…”

Section: Applications Of Renewable Raw Materialsmentioning

confidence: 99%

Biodegradable Binary and Ternary Complexes from Renewable Raw Materials

et al. 2021

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The aim of this paper is to investigate the interactions between polysaccharides with different electrical charges (anionic and neutral starches) and proteins and fats in food ingredients. Another objective is to understand the mechanisms of these systems and the interdependence between their properties and intermolecular interactions. At present, there are not many studies on ternary blends composed of natural food polymers: polysaccharides of different electrical charge (anionic and neutral starches), proteins and lipids. Additionally, there are no reports concerning what type of interactions between polysaccharide, proteins and lipids exist simultaneously when the components are mixed in different orders. This paper intends to fill this gap. It also presents the application of natural biopolymers in the food and non-food industries.

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Section: Applications Of Renewable Raw Materialsmentioning

confidence: 99%

Biodegradable Binary and Ternary Complexes from Renewable Raw Materials

et al. 2021

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“…Straw from agricultural wastes is a promising resource for the production of ACs due to their low cost and the ability to avoid environmental pollution by incineration. Studies show that the straw-based activated carbons (SACs), prepared from rice straw [6][7][8], wheat straw [2,9,10], sesame straw [11], corn straw [12,13] and maize straw [10] had an adsorption effect on heavy metals and that the SACs, from corn straw [14,15] and wheat straw [14,16] can be used to remove organic dyes from water. SACs are also able to remove antibiotics [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Straw-Based Activated Carbon: Optimization of the Preparation Procedure and Performance of Volatile Organic Compounds Adsorption

Zhu

2021

Materials

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Straw is one of the largest agricultural biowastes and a potential alternative precursor of activated carbon. Activated carbon prepared from different types of straw have great differences in structure and adsorption performance. In order to explore the performance of different straw-based activated carbon in volatile organic compounds adsorption, five common straws were selected as potential source materials for the preparation of SAC. The straw-based activated carbons were prepared and characterized via a thermo-gravimetric analysis, scanning electron microscope and the Brunauer–Emmett–Teller method. Among the five straw-based activated carbons, millet straw-derived activated carbon exhibited superior properties in SBET, Smic and adsorption capacities of both toluene and ethyl acetate. Furthermore, the preparation process of millet straw activated carbon was optimized via response surface methodology, using carbonization temperature, carbonization time and impregnation ratio as variables and toluene adsorption capacity, ethyl acetate adsorption capacity and activated carbon yield as responses. The optimal preparation conditions include a carbonization temperature of 572 °C, carbonization time of 1.56 h and impregnation ratio (ZnCl2/PM, w/w) of 1.60, which was verified experimentally, resulting in millet straw activated carbon with a toluene adsorption capacity of 321.9 mg/g and ethyl acetate adsorption capacity of 240.4 mg/g. Meanwhile, the adsorption isothermals and regeneration performance of millet straw activated carbon prepared under the optimized conditions were evaluated. The descriptive ability of the isothermals via the Redlich–Peterson equation suggests a heterogeneous surface on millet straw activated carbon. Recyclability testing has shown that millet straw activated carbon maintained a stable adsorption capacity throughout the second to fifth cycles. The results of this work indicate that millet straw activated carbon may be a potential volatile organic compound adsorbent for industrial application.

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“…24 Another interesting research on waste lignocellulosic materials revealed the high potential of such materials to be used as adsorbents for Ag + ions. 25 This study used raw materials derived from banana plants. Banana plants consist of stem, peelings, leaves, fruit, as well as the heart of the bananas.…”

Section: Introductionmentioning

confidence: 99%

ADSORPTION OF Cd(II) BY CARBON PREPARED FROM PEELS AND STEMS OF KEPOK BANANA (MUSA PARADISIACA FORMATYPICA)

Napitupulu¹,

AL-GIFARY²,

Walanda³

2019

Cellulose Chem. Technol.

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Carbon was produced from peels and stems of kepok banana and was characterized. Also, its Cd(II) adsorption ability was determined. The carbon material was prepared through two-stage carbonization. First, carbonization was carried out at 400 °C for 30 minutes, and then it was continued at 450 °C and 500 °C for 10 minutes. The results showed that the carbon content obtained after carbonization of banana peels at temperatures of 400 °C, 450 °C and 500 °C was 60.92%, 55.16% and 50.11%, respectively, while that achieved from banana stems was 65.37%, 56.97% and 45.80%, respectively. The moisture content of the carbon prepared from banana peels was 7.01%, 5.37% and 5.28%, respectively, for each temperature level, while that of the carbon material made from banana stems was 4.93%, 4.17% and 3.44%, respectively. The ash content of the banana peel carbon prepared at different temperature levels was 4.56%, 7.23% and 11.04%, respectively, and that of the banana stem carbon was 7.73%, 9.65% and 13.85%, respectively. The highest iodine number of banana peel carbon (450 °C) was 1006.74 mg/g, while that of banana stem carbon (450 °C) was 1019.43 mg/g. Surface analyses were conducted using scanning electron microscopy -energy dispersive spectroscopy (SEM-EDS). The Cd(II) adsorbed by the carbon materials was measured using atomic absorption spectrometry (AAS). The results showed that increasing the weight of the adsorbent leads to an increased amount of adsorbed Cd(II).

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Adsorption of Ag+ ions on hydrolyzed lignocellulosic materials based on willow, paulownia, wheat straw and maize stalks

Cited by 34 publications

References 42 publications

Biodegradable Binary and Ternary Complexes from Renewable Raw Materials

Biodegradable Binary and Ternary Complexes from Renewable Raw Materials

Straw-Based Activated Carbon: Optimization of the Preparation Procedure and Performance of Volatile Organic Compounds Adsorption

ADSORPTION OF Cd(II) BY CARBON PREPARED FROM PEELS AND STEMS OF KEPOK BANANA (MUSA PARADISIACA FORMATYPICA)

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