Mesoporous Titania-Silica nanocomposite as an effective material for the degradation of Bisphenol A under visible light

Jaseela, P.K.; Shamsheera, K.O.; Joseph, Abraham

doi:10.1016/j.jscs.2020.05.004

Cited by 16 publications

(4 citation statements)

References 45 publications

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“…Bisphenol A (2,2-bis (4-hydroxyphenyl) propane) is a xenoestrogen leading to several adverse effects on human beings including endocrine disruption. Jaseela et al 140 fabricated mesoporous TiO 2 @SiO 2 NPs for the removal of bisphenol A under visible light. TiO 2 existing in the sample prepared at 500–600 °C was maintained in the anatase phase.…”

Section: Applicationsmentioning

confidence: 99%

Synthesis, modification and application of titanium dioxide nanoparticles: a review

Wang

et al. 2022

Nanoscale

136

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Section: Applicationsmentioning

confidence: 99%

Synthesis, modification and application of titanium dioxide nanoparticles: a review

Wang

et al. 2022

Nanoscale

136

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“…In order to evaluate the involvement of holes (h + ), KI was added. t-butanol was added to recognise the impact of •OH radicals, potassium dichromate (K 2 Cr 2 O 7 ) was added as an escavenger, sodium azide (NaN 3 ) and benzoquinone (C 6 H 4 O 2 ) as radical scavengers for •O 2 and O 2 to examine specific reactive species [20]. Because of the TSFC1 catalyst's high efficiency, the photocatalytic efficiency of the TSFC1 catalyst in the presence of these scavengers was measured.…”

Section: Scavenger Studymentioning

confidence: 99%

“…The development of novel catalysts with high-efficiency photocatalytic performance under sunlight is significant for removing pharmaceutical compounds and further improving pilot photocatalytic performance [19]. Mesoporous composites have been proposed as a more efficient photocatalyst due to their ordered porous structure, eco-friendliness, larger surface area and pore volume, resulting in an increase in active surface sites and improved mass transport [20]. To address these issues, various approaches have been taken, such as surface modification of TiO 2 by incorporating defects, adding oxygen vacancies, and/or Ti 3+ using different treatment methods [21], phase structure modulation of TiO 2 (ratio of anatase and rutile) [22] and doping TiO 2 with different transition metals/non-metals [23].…”

Section: Introductionmentioning

confidence: 99%

“…Wang et al [27] synthesised TiO 2 /SiO 2 mesoporous nanocomposites for photocatalytic degradation of arsenic and achieved a maximum surface area of 58 m 2 g -1 . Zhang et al [28] formulated TiO 2 -SiO 2 composite with a mesoporous structure, better anatase phase and thermal stability [20]. Like TiO 2 , however, the photocatalyst TiO 2 -SiO 2 can only be excited under UV light because the energy of the TiO 2 bandgap is 3.2 eV.…”

Section: Introductionmentioning

confidence: 99%

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Efficient degradation of doxycycline and ofloxacin in an aqueous environment using Fe and Cu doped TiO2-SiO2 photocatalyst under sunlight

Rani

Garg

Singh

2021

Environmental Engineering Research

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Several drugs have sparked interest as potential COVID-19 treatment options. Doxycycline (DOX) has been widely used with other potential agents to reduce COVID-19-induced inflammation. DOX and OFLX, both well-known antimicrobial and anti-inflammatory drugs, were chosen as model pollutants. Fe, Cu-codoped TiO2-SiO2 was synthesised as a novel photocatalyst active under sunlight irradiation to treat model pollutants. The synthesised catalyst samples were meticulously characterised using various techniques to evaluate their morphological, optical, and structural properties. The results of BET analysis showed that the TSFC1 sample has a large specific surface area of 288 m 2 g -1 . Maximum degradation of DOX and OFLX (about 98%) was achieved with the TSFC1 catalyst. The photocatalytic reusability was investigated for up to seven successive cycles, and the composite particles maintained their high photodegradation activity for DOX and OFLX. TFSC1 composite, in particular, demonstrated high catalytic activity as well as excellent recovery potential, and its combination with solar light, silica, and dopants can be introduced as a promising strategy for efficiently destroying both DOX and OFLX antibiotics. This study highlights the feasibility of hybridising doped dual semiconductor nanostructures in implementing solar light-powered pharmaceutical wastewater degradation.

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Polyoxometalates/polymer composites for the photodegradation of bisphenol‐A

Brahmi

Benltifa

Ghali

et al. 2021

J of Applied Polymer Sci

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Nowadays water scarcity represents a threat for human and living beings. Therefore, to satisfy the demands of people for clean and safe water, new technologies for wastewater treatment have been developed. Thus, photocatalysis has emerged as a green chemical approach for such treatment. In this context, new polyoxometalate (POM)/polymer composites with relevant photocatalytic properties have been developed via an easy and cheap photopolymerization process upon mild visible light irradiation at 405 nm. This fruitful association between POM and polymer allowed the obtention of shaped materials facile to collect and reuse at the end of the photocatalytic treatment avoiding then the usual timeconsuming regeneration methods. The prepared photocomposites displayed excellent photocatalytic performance for the removal of bisphenol-A from water under different sources of irradiation. Hence, 100%, 88%, and 50% of this model compound were decomposed by the phosphomolybdic composite under just 90 min of UV lamp, solar and LED@375 nm irradiations, respectively. The effectiveness of these developed photocatalysts towards the degradation of other organic compounds, as well as the degradation mechanism based on the generation of highly reactive chemicals such as • OH radicals promoting the degradation were already reported. Bisphenol-A degradation pathway and the identification of the photoproducts were discussed using mass spectroscopy technique. Therefore, this paper highlighted the photocatalytic efficiency of the new manufactured materials for the photodegradation of the bisphenol-A, thus expanding their application fields, under different sources of irradiation and under pure solar irradiation which make their applications more interesting and less energy consuming.

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Mesoporous Titania-Silica nanocomposite as an effective material for the degradation of Bisphenol A under visible light

Cited by 16 publications

References 45 publications

Synthesis, modification and application of titanium dioxide nanoparticles: a review

Synthesis, modification and application of titanium dioxide nanoparticles: a review

Efficient degradation of doxycycline and ofloxacin in an aqueous environment using Fe and Cu doped TiO2-SiO2 photocatalyst under sunlight

Polyoxometalates/polymer composites for the photodegradation of bisphenol‐A

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