High surface area ordered mesoporous carbons from waste polyester: effective adsorbent for organic pollutants from aqueous solution

Yang, Jie; Jin, Ying Xue; Yu, Xinhai; Yue, Qun Feng

doi:10.1007/s10971-017-4419-7

Cited by 11 publications

(3 citation statements)

References 35 publications

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“…It is well-known in the literature that the adsorption characteristics of different phenolic and pharmaceutical compounds are influenced by their physicochemical properties, such as water solubility and octanol-water partition coefficients (dos Reis et al 2017Yang et al 2017). However, in this study, the affinity of each organic emerging contaminant compared with others does not follow a logical pattern with respect to their physical chemical properties, reported in Table 2, in order to differentiate the reason for the differences on sorption capacities of different emerging organic contaminants.…”

Section: Adsorption Of Emerging Pollutantsmentioning

confidence: 99%

Activated carbons from avocado seed: optimisation and application for removal of several emerging organic compounds

Leite

Saucier

Lima

et al. 2017

Environ Sci Pollut Res

114

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In this study, avocado seed was successfully used as raw material for producing activated carbons by conventional pyrolysis. In order to determine the best condition to produce the activated carbons, a 2 full-factorial design of experiment (DOE) with three central points was employed by varying the temperature and time of pyrolysis. The two evaluated factors (temperature and time of pyrolysis) strongly influenced the S, pore volumes, hydrophobicity-hydrophilicity ratio (HI) and functional groups values; both factors had a negative effect over S, pore volumes and functional groups which means that increasing the values of factors leads to decrease of these responses; on the other hand, with regards to HI, both factors caused a positive effect which means that increasing their values, the HI has an enhancement over its values. The produced activated carbon exhibited high specific surface areas in the range of 1122-1584 m g. Surface characterisation revealed that avocado seed activated carbons (ASACs) have hydrophilic surfaces and have predominantly acidic groups on their surfaces. The prepared ASACs were employed in the adsorption of 25 emerging organic compounds such as 10 pharmaceuticals and 15 phenolic compounds which presented high uptake values for all emerging pollutants. It was observed that the activated carbon prepared at higher temperature of pyrolysis (700 °C), which generated less total functional groups and presented higher HI, was the activated carbon with higher sorption capacity for uptaking emerging organic contaminants. Based on results of this work, it is possible to conclude that avocado seed can be employed as a raw material to produce high surface area and very efficient activated carbons in relation to treatment of polluted waters with emerging organic pollutants.

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Section: Adsorption Of Emerging Pollutantsmentioning

confidence: 99%

Activated carbons from avocado seed: optimisation and application for removal of several emerging organic compounds

Leite

Saucier

Lima

et al. 2017

Environ Sci Pollut Res

114

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show abstract

“…Moreover, it exhibits a superior cycling stability with high capacitance retention of 93.10% after cycling 5000 times. [56] Figure 3 TEM images of various porous cabon: (a) chemical degradation of waste PS; [53] (b) carbonizing halogen-containing PTFE; [56] (c) upcycling waste mixed plastic using OMMT/Co3O4 as catalysis; [55] (d) carbonizing mixed waste plastics using KOH activation. [54] Preparation of carbon based composites…”

Section: Waste Plastics As Low Cost Feedstocks For Carbon Materialsmentioning

confidence: 99%

Converting Waste Plastics into High Yield and Quality Carbon-Based Materials

Kong¹,

Yang²,

Zhang³

et al. 2017

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Recycling waste plastics including polypropylene, polyethylene, polyethylene terephthalate, polystyrene, etc, is a very important scientific, social and economic topic. Despite significant advances in recent years, approximately 400 million tons of waste plastics are still disposed by landfill. This is obviously not an effective solution due to plastic's non-biodegradable character. Aside from mechanical recycling, which turns waste plastics into new products, and thermal recycling, which releases the thermal energy through combustion of waste plastics, chemical recycling converts waste plastics into feedstock for chemicals/materials/fuels production. This article reviews previous work on the pyrolysis and catalytic decomposition route that converted plastics into carbon-based materials, which exhibited extraordinary physical and chemical properties. However, their production processes are both resource and energy-intensive. Therefore, recycling technologies for waste plastics are still at an early stage and more innovation in waste plastic recycling is needed.

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“…Work by Yang et al investigates the adsorption ability of mesoporous carbon produced through glycolysis of amorphous PET at atmospheric pressure, with subsequent calcination of the product. 8 The mesoporous carbon exhibited a large surface area (1251 m 2 g À1 ), making it an ideal material for adsorption of pollutants such as phenol. Another contribution from Guo et al focussed upon creating a wearable technology, where graphene and MnO 2 were applied to a PET fabric and its electrochemical capabilities evaluated.…”

Section: Introductionmentioning

confidence: 99%

The physicochemical investigation of hydrothermally reduced textile waste and application within carbon-based electrodes

et al. 2019

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High surface area ordered mesoporous carbons from waste polyester: effective adsorbent for organic pollutants from aqueous solution

Cited by 11 publications

References 35 publications

Activated carbons from avocado seed: optimisation and application for removal of several emerging organic compounds

Activated carbons from avocado seed: optimisation and application for removal of several emerging organic compounds

Converting Waste Plastics into High Yield and Quality Carbon-Based Materials

The physicochemical investigation of hydrothermally reduced textile waste and application within carbon-based electrodes

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