Graphene oxide-functionalized dual-scale channels architecture for high-throughput removal of organic pollutants from water

Jian, Tian; Wei, Junfu; Zhang, Huan; Kong, Zhiyun; Zhu, Yingwen; Qin, Zhi

doi:10.1016/j.cej.2018.12.048

Cited by 32 publications

(9 citation statements)

References 50 publications

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“…These macropores could facilitate molecular transportation and provide the additional diffusion pathway. 31,32 In addition, the thicknesses of the Pt/DC, Pt/ KAC-1, and Pt/KAC-3 walls were apparently different (Figure 2g−i). The tubular wall became thinner with the increased KOH concentration.…”

Section: Methodsmentioning

confidence: 99%

Pt Nanoparticles Embedded in KOH-Activated Soybean Straw as an Efficient Catalyst toward Benzene Oxidation

Jian

Wang

et al. 2021

Ind. Eng. Chem. Res.

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As an abundant and renewable biological resource, straw has been attracting wide attention due to its distinctive tubular structure and property. Herein, soybean straw was pretreated by KOH and was used as a support for Pt nanoparticles (NPs) to realize efficient benzene combustion. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images of straw-derived samples illustrated the channel wall with open macropores and uniform distribution of Pt NPs in the straw skeleton. As a result, the temperature for 90% benzene conversion (T 90%) by Pt/KAC-3 (Pt/KAC-n, where n represents the mass ratio of straw to KOH that was varied between 1:1, 1:2, and 1:3) was determined to be 179 °C under a space velocity (SV) of 120 000 mL/(g·h). Additionally, thermal stability was enhanced to nearly 96 h. This performance is predominantly attributed to its inherent channel structure, which has open and accessible pores, resulting in a uniform distribution of Pt NPs. Such structure enables the rapid transfer of benzene molecules between channels and ensures the accessibility of Pt NPs. Furthermore, the diffusion properties were confirmed by Fick’s second law. This study demonstrated a design of more efficient catalysts while using a renewable and abundant biomaterial.

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Section: Methodsmentioning

confidence: 99%

Pt Nanoparticles Embedded in KOH-Activated Soybean Straw as an Efficient Catalyst toward Benzene Oxidation

Jian

Wang

et al. 2021

Ind. Eng. Chem. Res.

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“…For example, the mechanical strength of functionalized-RGO/poly(vinylidene fluoride) (F-RGO/PVDF) films prepared by Luo et al was 42% higher than that of conventional RGO/PVDF films. [101] Functionalized GO (FGO)/PVA Self-assembly -Excellent fire retardancy of coated PVA films was achieved [102] Advances in Materials Science and Engineering Gr has also been used to enhance the electrical and thermal conductivities of polyolefin materials. In general, the required Gr content is higher than 10 wt.% because only a large amount of Gr forms electrically conductive and thermally conductive paths in polymer matrices [88][89][90][91][92][93][94].…”

Section: Applications Of Graphene/polymer Composite Materialsmentioning

confidence: 99%

“…In addition, Gr/polyolefin composite materials have potential applications in various fields, including uses in antiaging and flame-retardant materials [100][101][102].…”

Section: Applications Of Graphene/polymer Composite Materialsmentioning

confidence: 99%

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

Long

Weng

2020

Advances in Materials Science and Engineering

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As two-dimensional materials with a high specific surface area, strength, and electrical and thermal conductivity, graphene (Gr) and its derivatives have great application prospects in various fields such as structural reinforcement, energy storage, optics, and electrical and thermal conductivity. However, the current preparation method of Gr is complicated and expensive. Its preparation cost can be reduced using Gr composites that include inorganic materials or other polymers. Composite materials comprising Gr and inorganic materials are generally prepared using sinter molding, chemical reduction, or chemical deposition. Gr should be able to mitigate several of the defects resulting from inorganic materials, including their poor toughness, small specific capacity, and low photoelectric conversion rate. The mitigation of these defects should result in the expansion of the applications of Gr composites for use in capacitors, catalysts, and sensors, among other devices. Although solution blending or in situ polymerization produces a relatively good mixing effect, in general, melt blending is used in the large-scale processing of Gr composites with polymer materials. Gr can be used to partially mitigate several weaknesses of polymer materials, including their low strength, poor electrical and thermal conductivities, and poor isolation performance, and expand the applications of Gr composites for use in electrical and thermal conductive materials and functional membrane materials, among other applications. The goal of the present paper is to introduce the structural properties of Gr and a surface modification method for Gr. In addition, the preparation methods and application fields of different Gr composite materials are reviewed. Finally, the development prospects and key issues are discussed.

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“…The report of Wang et al, (2018) have shown that the adsorption of phenols pollutants; 2-phenylphenol (PPE), bisphenol A (BPA), 4-isopropylphenol (IPE), 4-methylphenol (ME), and phenol (PE) were more effective onto the rGO ( Figure 5) as compared to the GO, attributed to the decreased in electron density in the latter, hence the strong π-π interactions between the phenols and the adsorbent [138]. Tian et al (2019), reported on the rapid adsorption of bisphenol A (3.4 sec), onto hybrid material of graphene oxide with amino functionalized polypropylene (PP-g-DMAEMA/GO). The adsorbent possessed dual channel structure which allows bisphenol A to easily access the surface of the GO through the nanochannels of the propylene molecule [139].…”

Section: Graphene Graphene Oxides and Reduced Graphene Oxidesmentioning

confidence: 99%

“…Tian et al (2019), reported on the rapid adsorption of bisphenol A (3.4 sec), onto hybrid material of graphene oxide with amino functionalized polypropylene (PP-g-DMAEMA/GO). The adsorbent possessed dual channel structure which allows bisphenol A to easily access the surface of the GO through the nanochannels of the propylene molecule [139]. In adsorption studies, their unique chemical properties and high specific surface area has been emphasized.…”

Section: Graphene Graphene Oxides and Reduced Graphene Oxidesmentioning

confidence: 99%

An Overview and Evaluation of Highly Porous Adsorbent Materials for Polycyclic Aromatic Hydrocarbons and Phenols Removal from Wastewater

Zango

Sambudi

Jumbri

et al. 2020

Water

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Graphene oxide-functionalized dual-scale channels architecture for high-throughput removal of organic pollutants from water

Cited by 32 publications

References 50 publications

Pt Nanoparticles Embedded in KOH-Activated Soybean Straw as an Efficient Catalyst toward Benzene Oxidation

Pt Nanoparticles Embedded in KOH-Activated Soybean Straw as an Efficient Catalyst toward Benzene Oxidation

A Review on the Contemporary Development of Composite Materials Comprising Graphene/Graphene Derivatives

An Overview and Evaluation of Highly Porous Adsorbent Materials for Polycyclic Aromatic Hydrocarbons and Phenols Removal from Wastewater

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