Construction of α-Fe2O3 and Fe/Co-N4 structures with faceted TiO2 nanocrystals for highly efficient degradation of sulfathiazole in water

Gao, Zhao; Yang, Hanpei; Mao, Jingtao; Wu, Jerry J.

doi:10.1016/j.jclepro.2019.02.168

Cited by 26 publications

(4 citation statements)

References 60 publications

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“…Previously, we also found from the band structure results (Figure 3a,b) that after the heterojunction is photoexcited, photoelectrons migrate to the CB of Cs 0.32 WO 3 with a redox potential of −0.99 eV, which is higher than that of E at −0.048 eV (O 2 / • O 2 − ), so superoxide radicals ( • O 2 − ) can be obtained through O 2 trapping of photoelectrons. [54,55] The h + aggregated on the valence band of CuS has a redox potential of 1.77 eV, which is higher than that of E at 1.5-1.9 eV (−OH/ • OH), H 2 O can be oxidized by h + to generate hydroxyl radicals (OH − ). [55] By the EPR spin trapping test, dimethyl pyridine N-oxide (DMPO) or 2,2,6,6-tetramethylpiperidine (TEMP) is used as the trapping agent to capture h + , OH − , and • O 2 − .…”

Section: Energy Band Structure and Photothermal Conversion Mechanism ...mentioning

confidence: 99%

2D/2D Cs_0.32WO₃/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation

Zhuo

Luo

et al. 2023

Small Methods

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Desalination and power generation through solar energy harvesting is a crucial technology that can effectively address freshwater shortages and energy crises. However, owing to the complexity of the actual water environment, the thermal output capability of the photothermal material and the functional integration of the evaporation system need urgent improvement, to obtain high‐quality fresh water and sufficient electricity. Herein, a 2D/2D cesium tungsten bronze/copper sulfide (2D/2D Cs0.32WO3/CuS) nano‐heterojunction is developed and it is loaded into a cellulose‐based hybrid hydrogel to construct a multifunctional evaporator. Benefiting from the more nonradiative recombination centers from deep‐level defects, as well as shorter carrier migration distances and higher redox potentials in the Cs0.32WO3/CuS nano‐heterojunction, this evaporator has a significant improvement in thermal output capacity, enabling both super‐efficient seawater evaporation (4.22 kg m−2 h−1) and photodegradation of organic pollutants (removal rate ≈ 99%). Moreover, the evaporator exhibits long‐term stability and sustainable self‐cleaning property against salt accumulation. Remarkably, the thermoelectric module based on the Cs0.32WO3/CuS nano‐heterojunction shows promising electricity generation performance (4.85 W m−2), which can power small appliances durably and stably, exceeding previously reported similar devices. This 2D/2D heterojunction‐based solar evaporation system will provide a more reliable solution for efficient and sustainable freshwater‐electricity co‐generation in resource‐limited areas.

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Section: Energy Band Structure and Photothermal Conversion Mechanism ...mentioning

confidence: 99%

2D/2D Cs_0.32WO₃/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation

Zhuo

Luo

et al. 2023

Small Methods

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“…194 The photodegradation of sulfathiazole in aqueous media under visible light irradiation ( λ > 400 nm) was studied by Yang and co-workers. 195 They used well-faceted TiO 2 nanosheets with coexposed (001) and (101) and deposited selectively on α-Fe 2 O 3 and Fe/Co–N 4 on (001) facets (NTiO 2 –NS). Then, they prepared a hybrid material containing NTiO 2 –NS and Co 3 (Fig.…”

Section: Photocatalytic Degradation Of Organic Pollutantsmentioning

confidence: 99%

Advances in photocatalytic degradation of organic pollutants in wastewaters: harnessing the power of phthalocyanines and phthalocyanine-containing materials

Gamelas,

Tomé,

Tomé

et al. 2023

RSC Adv.

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“…The porous TiO 2 coating is donated as porous TiO 2 (PT) method, which is fabricated through Breath Figure (BF) process [25]. The reports have shown that PT method has higher purification efficiency and stronger anti-wearing ability on asphalt pavements [26][27][28]. But its preparation process is very complex causing difficulty to promote on a large scale in engineering.…”

Section: Introductionmentioning

confidence: 99%

Study on Air-Purifying Performance of Semi-Flexible Asphalt Samples Coated with Titanium Dioxide Using Different Methods

Yan¹,

Wang²,

Chi³

et al. 2022

Journal of Renewable Materials

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Titanium dioxide (TiO 2 ) was recently employed to apply onto road surfaces to degrade the harmful compounds from vehicle emissions. However, it remains a challenging task to find a highly compatible pavement type for TiO 2 application to achieve durable and efficient air-purifying performance. This study proposed to coat TiO 2 particles onto semi-flexible pavement surface and tried to investigate an optimum coating method. Three coating methods, including direct mixing TiO 2 (MT) with asphalt mixture, spraying dry TiO 2 (ST) coating and watersolution-based TiO 2 (WT) coating on semi-flexible pavement surface. To achieve this objective, semi-flexible samples were prepared to evaluate and compare the performances of three coating methods by employing resistance to wearing, NO removal efficiency tests and residual texture depth tests. It was found that the ST method not only provided better NO degrading efficiency but also improved the resistance to wearing than the other two methods.

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Construction of α-Fe2O3 and Fe/Co-N4 structures with faceted TiO2 nanocrystals for highly efficient degradation of sulfathiazole in water

Cited by 26 publications

References 60 publications

2D/2D Cs_0.32WO₃/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation

2D/2D Cs_0.32WO₃/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation

Advances in photocatalytic degradation of organic pollutants in wastewaters: harnessing the power of phthalocyanines and phthalocyanine-containing materials

Study on Air-Purifying Performance of Semi-Flexible Asphalt Samples Coated with Titanium Dioxide Using Different Methods

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Construction of α-Fe2O3 and Fe/Co-N4 structures with faceted TiO2 nanocrystals for highly efficient degradation of sulfathiazole in water

Cited by 26 publications

References 60 publications

2D/2D Cs0.32WO3/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation

2D/2D Cs0.32WO3/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation

Advances in photocatalytic degradation of organic pollutants in wastewaters: harnessing the power of phthalocyanines and phthalocyanine-containing materials

Study on Air-Purifying Performance of Semi-Flexible Asphalt Samples Coated with Titanium Dioxide Using Different Methods

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2D/2D Cs_0.32WO₃/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation

2D/2D Cs_0.32WO₃/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation