Iron/titanium oxide-biochar (Fe2TiO5/BC): A versatile adsorbent/photocatalyst for aqueous Cr(VI), Pb2+, F- and methylene blue

Herath, Amali; Navarathna, Chanaka; Warren, Shannon; Pérez, Felio; Pittman, Charles U.; Mlsna, Todd

doi:10.1016/j.jcis.2022.01.067

Cited by 35 publications

(9 citation statements)

References 102 publications

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“…As for Ti 2p, two obvious peaks located at 459.1 and 464.9 eV are attributed to the Ti 2p 3/2 and Ti 2p 1/2 state of Ti 4+ , respectively (Ma et al 2021). A satellite peak at 472.1 eV can be clearly seen for the Ti(IV) oxidation state (Herath et al 2022). For Fe 2p, the peaks at around 711.5 and 724.5 eV are assignable to Fe 2p 3/2 and Fe 2p 1/2 spin-orbit, respectively (Djellabi et al 2019).…”

Section: Composition and Structural Characteristicsmentioning

confidence: 96%

Synergy effect between tetracycline and Cr(VI) on combined pollution systems driving biochar-templated Fe3O4@SiO2/TiO2/g-C3N4 composites for enhanced removal of pollutants

Yang

Dai

Zhao

et al. 2023

Biochar

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Biochar-coupled Fe3O4@SiO2/TiO2/g-C3N4 composites were successfully constructed through simple sol–gel and calcination methods. The composites efficiently removed high-concentration toxic tetracycline (TC) by means of ·OH and ·$${\rm O}_2^{-}$$ O 2 - , whose removal rate exhibited 91.88% during 3 h, and the degradation rate constant reached up to 0.0068 min−1. The excellent performance can be attributed to the high specific surface area, enhanced visible light response, the introduction of magnetic nanoparticles and biochars expediting charge transfer, Z-scheme heterojunction enhancing the spatial separation of photo-generate carriers and, importantly extraordinary adsorption capacity of 147.96 mg g−1. Moreover, the composites showed the most excellent efficiency under the calcination temperature of 450 ℃, and exhibited good stability with tolerance to a wide range of pH and anions. Interestingly, a synergistic photocatalytic effect was discovered in the TC/Cr(VI) combined pollution systems, resulting in significantly improved removal of Cr(VI). Besides, the photocatalytic mechanism and degradation path of tetracycline were also elucidated. All these findings suggested the as-synthesized catalyst was an excellent photocatalyst for removal of TC/Cr(VI)-contaminated water. Graphical Abstract

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Section: Composition and Structural Characteristicsmentioning

confidence: 96%

Synergy effect between tetracycline and Cr(VI) on combined pollution systems driving biochar-templated Fe3O4@SiO2/TiO2/g-C3N4 composites for enhanced removal of pollutants

Yang

Dai

Zhao

et al. 2023

Biochar

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“…The SEM images exhibited that the spherical TiO 2 nanoparticles were evenly modified onto the biochar surface. Also, Herath et al 111 successfully decorated Fe 2 TiO 5 nanoparticles on biochar (BC) using a chemical co-precipitation method and a heat treatment process. The XRD examination of Fe 2 TiO 5 and Fe 2 TiO 5 /BC corroborated the successful deposition of Fe 2 TiO 5 on the biochar surface.…”

Section: Synthesis Strategies For Tio 2 –Biochar-b...mentioning

confidence: 99%

Recent progress in TiO₂–biochar-based photocatalysts for water contaminants treatment: strategies to improve photocatalytic performance

Liu,

Dai,

et al. 2024

RSC Adv.

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“…RHPC3@LaYO 3 demonstrates outstanding purification abilities for intricate dye-laden wastewater, particularly for dye systems with opposing charges, attributable to the synergistic effect that results in a substantial upsurge in the total absorption of dye. [50] Adsorption and desorption were the key metrics used to evaluate the performance of RHPC3@LaYO 3 . The results showed that RHPC3@LaYO 3 is a reusable adsorbent with significant regeneration capacity.…”

Section: Mb/cr Adsorptionmentioning

confidence: 99%

In Situ Synthesis of Rare‐Earth Hybridized Functional Core‐Shell Architectures from Microporous Salt Templates and Capacitance‐Adsorption Correlation Mechanisms

Zheng,

Guo

2024

Small

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Biochar Porous Carbon (BPC) has become a research hotspot in the fields of energy storage, conversion, catalysis, adsorption, and separation engineering. However, the key problem of pore structure liable to collapse has not yet been addressed effectively. Here, an innovative salt ionic coordination modulation technique is reported to synthesize a new core‐shell structure of BPC (Dual‐doped porous carbonaceous materials, RHPC3@LaYO3) by the asymmetric load of the f orbital ion, which prevents pore structural collapse. The result shows that the novel asymmetric supercapacitors (ASCs) with an excellent energy density (193.11 Wh·kg−1) and capacitance (267.14 F·g−1) by assembling the prepared porous BPC carrier and RHPC3@LaYO3, which surpass the typical supercapacitor. In order to elucidate the association between adsorption and capacitance, the adsorption coexistence equation (MACE) is constructed with the aim of providing a comprehensive explanation for the mechanism of single‐multilayer adsorption. Furthermore, a specific linkage mechanism is discovered using adsorption/ desorption properties to validate the pros/cons of capacitive properties. These results demonstrate the potential of renewable biomass materials as ASCs, which can provide new ideas for the construction of an evaluation approach for the performance of future efficient multi‐reaction energy storage devices.

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Iron/titanium oxide-biochar (Fe2TiO5/BC): A versatile adsorbent/photocatalyst for aqueous Cr(VI), Pb2+, F- and methylene blue

Cited by 35 publications

References 102 publications

Synergy effect between tetracycline and Cr(VI) on combined pollution systems driving biochar-templated Fe3O4@SiO2/TiO2/g-C3N4 composites for enhanced removal of pollutants

Synergy effect between tetracycline and Cr(VI) on combined pollution systems driving biochar-templated Fe3O4@SiO2/TiO2/g-C3N4 composites for enhanced removal of pollutants

Recent progress in TiO₂–biochar-based photocatalysts for water contaminants treatment: strategies to improve photocatalytic performance

In Situ Synthesis of Rare‐Earth Hybridized Functional Core‐Shell Architectures from Microporous Salt Templates and Capacitance‐Adsorption Correlation Mechanisms

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Iron/titanium oxide-biochar (Fe2TiO5/BC): A versatile adsorbent/photocatalyst for aqueous Cr(VI), Pb2+, F- and methylene blue

Cited by 35 publications

References 102 publications

Synergy effect between tetracycline and Cr(VI) on combined pollution systems driving biochar-templated Fe3O4@SiO2/TiO2/g-C3N4 composites for enhanced removal of pollutants

Synergy effect between tetracycline and Cr(VI) on combined pollution systems driving biochar-templated Fe3O4@SiO2/TiO2/g-C3N4 composites for enhanced removal of pollutants

Recent progress in TiO2–biochar-based photocatalysts for water contaminants treatment: strategies to improve photocatalytic performance

In Situ Synthesis of Rare‐Earth Hybridized Functional Core‐Shell Architectures from Microporous Salt Templates and Capacitance‐Adsorption Correlation Mechanisms

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Recent progress in TiO₂–biochar-based photocatalysts for water contaminants treatment: strategies to improve photocatalytic performance