Immobilized and photocatalytic performances of PDMS-SiO2-chitosan@TiO2 composites on pumice under simulated sunlight irradiation

Shao, Li; Liu, Heng; Zeng, Weiping; Zhou, Caiyun; Li, Dan; Wang, Liang; Lan, Yeqian; Xu, Feigao; Liu, Gousheng

doi:10.1016/j.apsusc.2019.02.060

Cited by 30 publications

(9 citation statements)

References 53 publications

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“…19e ). A recent report by Shao et al 129 pointed out the combination between pumice stone with the hybrid of PSCT (PDMS–SiO 2 –Cs@TiO 2 ) create a composite with high hydrophobicity. Although natural pumice possesses high hydrophilic; however, the formation of long-chain CH 3 –Si on the surface of as-synthesized composite remarkably improved its water-holding capacity.…”

Section: Green Materials-based Metal Oxides Nanocomposites: Propertie...mentioning

confidence: 99%

Fly ash-, foundry sand-, clay-, and pumice-based metal oxide nanocomposites as green photocatalysts

2021

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Section: Green Materials-based Metal Oxides Nanocomposites: Propertie...mentioning

confidence: 99%

Fly ash-, foundry sand-, clay-, and pumice-based metal oxide nanocomposites as green photocatalysts

2021

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“…This makes it easier to separate the photocatalysts from the reaction mixture for reuse. The different substances used for immobilizing photocatalysts are, for example, pumice (Shao et al 2019), stainless steel wire-mesh (Chang et al 2019), glass (Pickering et al 2017;Xing et al 2018;Pirinejad et al 2019), cellulose acetate film (Boruah et al 2019), cellulosic fibres (Jouali et al 2019), polyethersulfone matrix (Hir et al 2017), activated charcoal, zeolite, polymers, cement and clay (Hofstadler et al 1994;Ao and Lee 2005;Mohamed and Mohamed 2008;Meng et al 2008;Jafari et al 2016;Pan et al 2019) (Table 8). The physiochemical properties of the support being used play a major role in modulating the rate of photocatalysis, and they are (Pozzo et al 1997): high porosity, low manufacturing cost, high stability, nontoxicity, high transparency, chemical inertness, strong surface binding with the photocatalyst and separability.…”

Section: Reusability Of Photocatalystsmentioning

confidence: 99%

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

et al. 2020

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Textile wastewaters contain refractory dyes that cause pollution and socioeconomic issues, thus calling for efficient remediation techniques such as photocatalysis. We review the fabrication, functionalization, performance and limitations of doped catalysts for degrading and mineralizing dyes. We present developments in photocatalyst immobilization and photocatalytic reactor design. Methods such as microwave irradiation, sonication and use of ionic liquids are emerging for the preparation of doped photocatalysts. Whilst single-dye systems have been extensively studied, there is limited knowledge on multipledye systems. Immobilization of photocatalysts is gaining popularity for large-scale application, but faces issues of erosion, corrosion, mechanical strength and structure integrity. Ecotoxicological studies are required in real environments to validate the potential applications of nanostructured doped photocatalysts.

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“…In this sense, several supported photocatalysts have been prepared for MO [121,[126][127][128][129][130], RhB [123,[131][132][133], MB [122,[134][135][136][137][138][139][140][141][142][143][144], and other pulliting dyes [124,125,[145][146][147][148][149][150][151][152][153][154][155][156][157][158][159] removal, as shown in Table 3.…”

Section: Immobilized Photocatalystsmentioning

confidence: 99%

Use of Nanostructured Photocatalysts for Dye Degradation: A Review

Santoyo

Andrade-Espinoza

Romero-Toledo

et al. 2022

Period. Polytech. Chem. Eng.

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Among the technologies proposed for wastewater treatment, the Advanced Oxidation Processes are viable and technological strategies for dyes degradation. Different photocatalytic systems classified in metal oxides alone or combined through hybrid composites or immobilized onto supports have been designed in various nanostructured shapes for their application in the photodegradation of polluting dyes. This review aims to describe the dyes as an environmental threat, photocatalysis as an effective process to remove dyes from water and provide an overview of the recent studies using photocatalytic systems grouped according to their development. Furthermore, this review describes the main parameters of a photocatalytic system with an important role in dye photodegradation. Finally, we discuss the limitations of photocatalysis for real industrial applications and the challenges for this environmental nanotechnology.

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Immobilized and photocatalytic performances of PDMS-SiO2-chitosan@TiO2 composites on pumice under simulated sunlight irradiation

Cited by 30 publications

References 53 publications

Fly ash-, foundry sand-, clay-, and pumice-based metal oxide nanocomposites as green photocatalysts

Fly ash-, foundry sand-, clay-, and pumice-based metal oxide nanocomposites as green photocatalysts

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

Use of Nanostructured Photocatalysts for Dye Degradation: A Review

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