Preparing a magnetic activated carbon with expired beverage as carbon source and KOH as activator

Liu, Yunjie; Huo, Zhibao; Song, Zhiyuan; Zhang, Chuntao; Ren, Dezhang; Zhong, Heng; Jin, Fangming

doi:10.1016/j.jtice.2018.11.017

Cited by 40 publications

(10 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The most common application of activated carbon is to be adsorbent for various pollutants. [15][16][17] Carbon dioxide has caused wild public concern in recent years, for it is a greenhouse gas and leads to global warming. 8,9 Furthermore, activated carbon can be prepared from various feedstocks, including coal, blue-coke, and organic materials.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nitrogen‐doping activated biomass carbon from tea seed shell for CO ₂ capture and supercapacitor

2019

View full text Add to dashboard Cite

Activated carbon is a promising material that has a broad application prospect.In this work, biomass (tea seed shell) was used to prepare activated carbon with KOH activation (referred to as AC), and nitrogen was doped in activated carbon using melamine as the nitrogen source (referred to as NAC-x, where x is the mass ratio of melamine and activated carbon). The obtained activated biomass carbon (activated bio-carbon) samples were characterized by Brunauer-Emmett-Teller (BET)-specific surface area analysis, ultimate analysis, X-ray photoelectron spectroscopy (XPS) analysis, Raman spectrum analysis, and X-ray diffraction (XRD) patterns. The specific surface areas of activated bio-carbons were 1503.20 m 2 /g (AC), 1064.54 m 2 /g (NAC-1), 1187.93 m 2 /g (NAC-2), 1055.32 m 2 /g (NAC-3), and 706.22 m 2 /g (NAC-4), revealing that nitrogen-doping process leads to decrease in specific surface area. XPS analysis revealed that the main nitrogen-containing functional groups were pyrrolic-N and pyridinic-N. The capacity of CO 2 capture and electrochemical performance of activated bio-carbon samples were investigated. The CO 2 capturing capacity followed this order: AC (3.15 mmol/g) > NAC-2 (2.75 mmol/g) > NAC-1 (2.69 mmol/g) > NAC-3 (2.44 mmol/g) > NAC-4 (1.95 mmol/g) at 298 K at 1 bar, which is consistent with the order of specific surface area. The specific surface area played a dominant role in CO 2 capturing capacity. As for supercapacitor, AC-4 showed the highest specific capacitance (168 F/g) at the current density of 0.5 A/g, but NAC-2 showed the best electrochemical performance (89 F/g) at 2 A/g. Nitrogen-containing functional groups and specific surface area both had an important impact on electrochemical performance. In general, NAC-3 and NAC-2 produced excellent electrochemical performance. Compared with NAC-3, less melamine was used to prepare NAC-2; therefore, NAC-2 was considered as the best activated bio-carbon for supercapacitor for 141 F/g (at 0.5 A/g), 108 F/g (at 1 A/g), and 89 F/g (at 2 A/g) in this work.

show abstract

Section: Introductionmentioning

confidence: 99%

“…14 And the activated carbon with KOH as activator would have a high specific surface area (greater than 1000 m 2 /g). [15][16][17] Carbon dioxide has caused wild public concern in recent years, for it is a greenhouse gas and leads to global warming. A number of methods were proposed to capture CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Nitrogen‐doping activated biomass carbon from tea seed shell for CO ₂ capture and supercapacitor

2019

View full text Add to dashboard Cite

show abstract

“…In a study, magnetic carbons that were produced with FeCl3, FeCl2, and urea-catalyzed hydrothermal reaction, in which carbohydrates (fructose, glucose, and sucrose) of expired beverages were used as carbon sources, were activated with KOH. Then, their removal with water-soluble methylene blue dye with a 404.73 mgg -1 adsorption capacity was achieved (Liu et al, 2019). In another study, in order to increase the absorption of triazine herbicides from model food samples such as milk and rice, the separation of triazine herbicides depending on the hydrophobic interaction between triazine herbicides coated with magnetic modified activated carbon on a nonionic silicon surface and the adsorbent was achieved at a rate of 81 % in food samples (Mohd et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

An in vivo study on Drosophila melanogaster, Artemia salina, and Daphnia magna: Is activated carbon used as a food additive reliable?

Fidan

Ayar

2020

International Journal of Science Letters

View full text Add to dashboard Cite

Activated carbon, one of the most important adsorbents used in the industry, is a general definition used to describe carbon adsorbents, which have a large crystal and amorphous structure and wide internal pores. Activated carbon, which has started to be used in many fields in recent years, is observed to be preferred as an important additive in the food industry. This study aimed to investigate the reliability of the use of activated carbon as a food additive in different model organisms, such as Drosophila melanogaster, Artemia salina, and Daphnia magna. To this end, the organisms were kept alive in nutrient media containing activated carbon at different concentrations (0.1 mgmL-1 , 0.5 mgmL-1 , 1 mgmL-1 , 2.5 mgmL-1 , and 5 mgmL-1), and changes that occurred in their percentage of survival were determined for 48 h. According to the data obtained, for all three organisms, it was found that in comparison with the control group, there was no decrease in survival percentages in any of the experimental groups in which activated carbon was used. On the contrary, there were increases depending on concentration. Especially in A.salina, the percentage of survival, which was 78 % in the control group, increased up to 87 % (P <0.05). As a result of the study, it was concluded that activated carbon at the specified doses might be used reliably as a food additive. It was evaluated that these results should be supported by in vivo and in vitro studies to be conducted in different organisms.

show abstract

“…According to the related literature, several common activators, [28][29][30][31][32][33][34][35][36][37][38] namely KOH, MgCl 2 , NaOH, and ZnCl 2 , are selected to carbonize PMS at a temperature of 550 C and quality ratio (PMS/activator) of 1 : 1 for 120 min. The iodine adsorption capacity (q t ) of the prepared composites is shown in Fig.…”

Section: Effect Of Various Activators On Structure Of Psi-c Composite and Its Iodine Capturementioning

confidence: 99%

Rapid iodine capture from radioactive wastewater by green and low-cost biomass waste derived porous silicon–carbon composite

Han

et al. 2021

RSC Adv.

View full text Add to dashboard Cite

show abstract

Preparing a magnetic activated carbon with expired beverage as carbon source and KOH as activator

Cited by 40 publications

References 62 publications

Nitrogen‐doping activated biomass carbon from tea seed shell for CO ₂ capture and supercapacitor

Nitrogen‐doping activated biomass carbon from tea seed shell for CO ₂ capture and supercapacitor

An in vivo study on Drosophila melanogaster, Artemia salina, and Daphnia magna: Is activated carbon used as a food additive reliable?

Rapid iodine capture from radioactive wastewater by green and low-cost biomass waste derived porous silicon–carbon composite

Contact Info

Product

Resources

About

Preparing a magnetic activated carbon with expired beverage as carbon source and KOH as activator

Cited by 40 publications

References 62 publications

Nitrogen‐doping activated biomass carbon from tea seed shell for CO 2 capture and supercapacitor

Nitrogen‐doping activated biomass carbon from tea seed shell for CO 2 capture and supercapacitor

An in vivo study on Drosophila melanogaster, Artemia salina, and Daphnia magna: Is activated carbon used as a food additive reliable?

Rapid iodine capture from radioactive wastewater by green and low-cost biomass waste derived porous silicon–carbon composite

Contact Info

Product

Resources

About

Nitrogen‐doping activated biomass carbon from tea seed shell for CO ₂ capture and supercapacitor

Nitrogen‐doping activated biomass carbon from tea seed shell for CO ₂ capture and supercapacitor