Adsorption-photocatalytic degradation of dye pollutant in water by graphite oxide grafted titanate nanotubes

Lei, Xiaoman; Li, Xiaolong; Ruan, Zhiqiang; Zhang, Tingmei; Pan, Fei; Li, Qiang; Xia, Dongsheng; Fu, Jie

doi:10.1016/j.molliq.2018.06.053

Cited by 56 publications

(13 citation statements)

References 46 publications

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“…The coupling of TiO 2 with an intrinsically adsorbent material, polyethersulfone nanofibers (PES NF), resulted in an efficient adsorption-photocatalytic degradation nanosystem for methylene blue dye [54]. Graphene oxide (GO), a common adsorbent nanomaterial with similar properties to that of graphene, was grafted to titanate nanotubes (TNT@GO), that are produced from the alkaline and thermal treatment of TiO 2 and showed higher performance in the photocatalytic activity for degrading MB dye [55]. GO is characterized by a high adsorption capacity and stability and is a particularly interesting nanomaterial to be coupled to photocatalytic nanomaterials, such as for example TiO 2 and derivatives, because it shows some semiconductive properties that can serve as photosensitizer via suppressing the charge recombination rate of electron-hole pairs [19].…”

Section: Nanomaterials As Adsorbents In Water Treatmentmentioning

confidence: 99%

Advanced Oxidation Processes Coupled with Nanomaterials for Water Treatment

Cardoso

Silva

2021

Nanomaterials

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Water quality management will be a priority issue in the near future. Indeed, due to scarcity and/or contamination of the water, regulatory frameworks will be increasingly strict to reduce environmental impacts of wastewater and to allow water to be reused. Moreover, drinking water quality standards must be improved in order to account for the emerging pollutants that are being detected in tap water. These tasks can only be achieved if new improved and sustainable water treatment technologies are developed. Nanomaterials are improving the ongoing research on advanced oxidation processes (AOPs). This work reviews the most important AOPs, namely: persulfate, chlorine and NH2Cl based processes, UV/H2O2, Fenton processes, ozone, and heterogeneous photocatalytic processes. A critical review of the current coupling of nanomaterials to some of these AOPs is presented. Besides the active role of the nanomaterials in the degradation of water contaminants/pollutants in the AOPs, the relevance of their adsorbent/absorbent function in these processes is also discussed.

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Section: Nanomaterials As Adsorbents In Water Treatmentmentioning

confidence: 99%

Advanced Oxidation Processes Coupled with Nanomaterials for Water Treatment

Cardoso

Silva

2021

Nanomaterials

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“…By penetrating and further reacting the carbon-centered radicals with the polymer chains, the chain cleavage is triggered [147]. Titanate nanotubes (TNTs) are one of the 1D nano-adsorbents that, due to their optimum stability, tubular structure, large surface area, ion exchange property, photoelectric function, and quantum size effect, have drawn attention for water treatment applications [148]. The TNT can partially adsorb dyes in a chemical manner and also via the electrostatic interaction between its surface negative charges with cationic dyes.…”

Section: D Nanocomposite Nano-adsorbentsmentioning

confidence: 99%

The Nanosized Dye Adsorbents for Water Treatment

Homaeigohar

2020

Nanomaterials

146

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Clean water is a vital element for survival of any living creature and, thus, crucially important to achieve largely and economically for any nation worldwide. However, the astonishingly fast trend of industrialization and population growth and the arisen extensive water pollutions have challenged access to clean water across the world. In this regard, 1.6 million tons of dyes are annually consumed. Thereof, 10%–15% are wasted during use. To decolorize water streams, there is an urgent need for the advanced remediation approaches involving utilization of novel materials and technologies, which are cost and energy efficient. Nanomaterials, with their outstanding physicochemical properties, can potentially resolve the challenge of need to water treatment in a less energy demanding manner. In this review, a variety of the most recent (from 2015 onwards) opportunities arisen from nanomaterials in different dimensionalities, performances, and compositions for water decolorization is introduced and discussed. The state-of-the-art research studies are presented in a classified manner, particularly based on structural dimensionality, to better illustrate the current status of adsorption-based water decolorization using nanomaterials. Considering the introduction of many newly developed nano-adsorbents and their classification based on the dimensionality factor, which has never been employed for this sake in the related literature, a comprehensive review will be presented.

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“…Among these approaches, adsorption techniques to eliminate heavy metals from aqueous media have become more attractive, have received worldwide attention, and are considered to be some of the most promising techniques due to their powerful performance, low energetic requirements, ease of implementation and operation, safety, and low cost [8][9][10]. Several adsorbents, including metal oxides, resin, silicate materials, clays, polymers, polymer-metal oxide hybrids, biomaterials, and nanocomposites, as well as carbonaceous materials, including activated carbon, carbon-graphene-based materials, fullerenes, and biochar, are newly developed and display potential applications in the removal of heavy metals from water or wastewater [11][12][13][14][15][16][17][18][19][20][21][22][23]. Fullerenes have a hydrophobic character, high electron affinity, a high surface-to-volume ratio, and surface defects.…”

Section: Introductionmentioning

confidence: 99%

An Environmentally Friendly Method for Removing Hg(II), Pb(II), Cd(II) and Sn(II) Heavy Metals from Wastewater Using Novel Metal–Carbon-Based Composites

et al. 2021

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Rapid economic and industrial development and population growth have made water contamination a serious environmental problem and a major threat to public health worldwide. Heavy metals are extensively used in numerous industrial applications and are some of the most important environmental contaminants. The impacts of heavy metals on the health of humans, animals, and plants make their removal from wastewater and water resources an important and vital issue. In this study, a simple and environmentally friendly method is proposed for the synthesis of a ZnFe2O4-carbon nanotube (CNT) adsorbent material. SEM/EDX analysis and Fourier-transform infrared spectrophotometry (FTIR) are used to characterize the synthesized adsorbent material. We test the synthesized adsorbent material’s ability to recover four heavy metals (Hg(II), Pb(II), Cd(II) and Sn(II) ions) from an aqueous solution. We show that crushing fullerene CNTs with the ZnFe2O4 composite improves the adsorption properties of free fullerene CNTs towards the investigated heavy metal ions by 25%.

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Adsorption-photocatalytic degradation of dye pollutant in water by graphite oxide grafted titanate nanotubes

Cited by 56 publications

References 46 publications

Advanced Oxidation Processes Coupled with Nanomaterials for Water Treatment

Advanced Oxidation Processes Coupled with Nanomaterials for Water Treatment

The Nanosized Dye Adsorbents for Water Treatment

An Environmentally Friendly Method for Removing Hg(II), Pb(II), Cd(II) and Sn(II) Heavy Metals from Wastewater Using Novel Metal–Carbon-Based Composites

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