Characterization of Biochar Obtained by Co-Pyrolysis of Waste Newspaper with High-Density Polyethylene

Chen, Wei Min; Chen, Min Zhi; Zhou, Xiao Yan

doi:10.15376/biores.10.4.8253-8267

Cited by 24 publications

(20 citation statements)

References 6 publications

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“…To examine the effect of in vitro aging on the elemental distribution of the nanoplastic particles, the O/C, and C/N ratios were calculated using O, C, and the N content obtained by the EDX spectrum. These ratios are also an indicator of the surface deformation and a nity to the biological activity (Luo et al 2020;Saygin and Baysal 2020b,c;Chen et al 2015). As indicated in Fig.…”

Section: Impact Of the In Vitro Aging On The Surface Characteristic Of Nanoplasticsmentioning

confidence: 90%

In vitro modeling for the aging of nanoplastics: physicochemical characteristics and effect on the biofilm formation of Staphylococcus aureus

Saygın

Baysal

2021

Preprint

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Over the last decade, it has become clear that the pollution by plastic debris presents global societal, environmental, and human health challenges. Increasing scientific attention on the occurrence and influence of plastic particles, and their potential toxic effects on the environment are evident. However, humans are also exposed to plastics in daily life and very limited information is available concerning human health, especially aging process in biological fluids and the colonization of the bacteria on plastics due to transport the pathogens, causing the infectious is another vital problem. Moreover, various studies also observed the importance of the nano-sized particles since a lower size can increase the activity, surface area etc. Therefore, the aim of this study is to investigate the in vitro (artificial saliva, artificial lysosomal fluid, phagolysosomal simulant fluid, Gamble’s solution) aging of plastic particles and the effect on the formation of Staphylococcus aureus biofilms with nanoplastics under in vitro conditions. We found that the surface properties of the nano-sized plastic particles changed according to the surrounding environment and surface deformation and the surface affinity to the biological activity was triggered with in vitro conditions due to higher hydroxyl index and carbon to nitrogen ratio. The results also showed that the Staphylococcus aureus biofilms formed with nanoplastics with the aging in vitro conditions. However, their levels and characteristic of extracellular polymeric substances were varied in these conditions with aging compared to control, and more basophilic extracellular polymeric substances were formed with these conditions.

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Section: Impact Of the In Vitro Aging On The Surface Characteristic Of Nanoplasticsmentioning

confidence: 90%

In vitro modeling for the aging of nanoplastics: physicochemical characteristics and effect on the biofilm formation of Staphylococcus aureus

Saygın

Baysal

2021

Preprint

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“…The co-pyrolysis reactor was previously described (Chen et al 2015). It was operated under a 20 mL/min N2 flow with high purity (99.99%).…”

Section: Bio-char Preparationmentioning

confidence: 99%

“…It has been demonstrated that bio-char obtained by co-pyrolysis of biomass with high-density polyethylene is upgraded, with the characteristics of lower oxygen-containing groups, increased aromatic structure, higher calorific value, and greater porosity development compared with biomass pyrolyzed alone (Chen et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature on the Evolution of Physical Structure and Chemical Properties of Bio-char Derived from Co-pyrolysis of Lignin with High-Density Polyethylene

Chen¹,

Shi²,

Nguyen³

et al. 2016

BioResources

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Bio-chars were produced by co-pyrolysis of lignin with high-density polyethylene at 350 °C, 450 °C, and 550 °C. X-ray diffraction (XRD), Raman spectroscopy, automated surface area and pore size analysis, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and electron spin resonance (ESR) spectroscopy were performed on bio-char to reveal the effect of temperature on its physical structure and chemical properties. All of the bio-chars demonstrated a highly disordered, turbostratic structure and exhibited a wide pore distribution. Dramatic losses of carbonyl, hydroxyl, and C-H groups indicated the development of condensed aromatic structure in the bio-chars. Specifically, biochar produced at 450 °C showed the highest degree of aromaticity, which is the relative content of aromatic structure with small fused rings and free radical concentration. This structure has more potential application in composite production and as solid fuel for its combustion or gasification. Moreover, biochar produced at 550 °C had the greatest porosity development, favoring its use as a precursor for activated carbon production.

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“…Although traditionally biochar is used in agriculture and livestock farming, it is now being seriously considered for applications in the RESEARCH ARTICLE OPEN ACCESS [13]. [12] emphasized that biochar has excellent insulating properties, improves air quality, soaks moisture, protects from radiation and allows buildings to be turned into carbon sinks.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Swine-Waste Biochar on the Early-Age Characteristics of Cement Paste

Ofori-Boadu¹,

Kelley²,

Aryeetey³

et al. 2017

IJERA

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The purpose of this research was to investigate the influence of swine-waste biochar (SB) on the early-age characteristics of cement pastes. Using a water/binder ratio of 0.28, SB modified cement pastes were analyzed using Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), flow, and Vicat setting tests. Notably, SB reduced the flow and initial setting times of SB modified cement pastes. Due to its porous and negatively charged surfaces, capillary water was adsorbed into the pores of the carbonaceous SB and this reduced the flow of the SB modified cement pastes. Furthermore, it is suspected that the reductions in initial setting times may have been because with the addition of water to the dry SB/cement binder mix, chemical reactions between the calcium cations from Portland cement and carboxylate anions from SB resulted in the development of Calcium Polycarboxylate Salts (C-P-S). Improvements in the properties of SB could enhance its applications in rapid-setting and flow-reducing concrete.

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Characterization of Biochar Obtained by Co-Pyrolysis of Waste Newspaper with High-Density Polyethylene

Cited by 24 publications

References 6 publications

In vitro modeling for the aging of nanoplastics: physicochemical characteristics and effect on the biofilm formation of Staphylococcus aureus

In vitro modeling for the aging of nanoplastics: physicochemical characteristics and effect on the biofilm formation of Staphylococcus aureus

Effect of Temperature on the Evolution of Physical Structure and Chemical Properties of Bio-char Derived from Co-pyrolysis of Lignin with High-Density Polyethylene

The Influence of Swine-Waste Biochar on the Early-Age Characteristics of Cement Paste

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