Direct Z-scheme composite of CdS and oxygen-defected CdWO 4 : An efficient visible-light-driven photocatalyst for hydrogen evolution

Xu, Jian; Tahir, Muhammad Nawaz; Pan, Lun; Huang, Zhen‐Feng; Zhang, Xiangwen; Wang, Li; Zou, Ji‐Jun

doi:10.1016/j.apcatb.2016.05.046

Cited by 195 publications

(81 citation statements)

References 42 publications

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“…The active species typically involved in the photodegradation include holes (h + ), hydroxyl radicals (•OH) and superoxide radicals (•O 2 − ) 42, 43 . A series of controlled experiments of RhB photodegradation under UV light were performed over the WO 3 /TiO 2 -wood fibers after calcination using different radical scavengers, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Preparation of heterostructured WO3/TiO2 catalysts from wood fibers and its versatile photodegradation abilities

Gao¹,

Gan²,

Qiu³

et al. 2017

Sci Rep

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A facile route was adopted to synthesize heterostructured WO3/TiO2 photocatalysts from wood fibers through a two-steps hydrothermal method and a calcination process. The prepared WO3/TiO2-wood fibers were used as photocatalysts under UV irradiation for photodegradation of rhodamine B, methylene blue and methyl orange. In calcination process, the wood fibers acted as carbon substrates to prepare the WO3/TiO2 photocatalysts with high surface area and unique morphology. Thus, the significant enhanced photodegradation efficiency of the organic pollutants with the WO3/TiO2-wood fibers under UV irradiation was obtained. The photodegradation rates are measured which confirms the highest performance of the WO3/TiO2-wood fibers after calcination in comparison to the TiO2-wood fibers after calcination and the pure WO3/TiO2 after calcination. Moreover, the photodegradation efficiency of the WO3/TiO2-wood fibers after calcination under visible light is high. Our results demonstrated that the WO3/TiO2-wood fibers after calcination are a promising candidate for wastewater treatment in practical application.

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Section: Resultsmentioning

confidence: 99%

Preparation of heterostructured WO3/TiO2 catalysts from wood fibers and its versatile photodegradation abilities

Gao¹,

Gan²,

Qiu³

et al. 2017

Sci Rep

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“…19,20 Furthermore, maximum overpotentials can be achieved with this unique Z-scheme system, which is benecial for the effective utilization of a high conduction band from a semiconductor and a low valence band from another semiconductor. [21][22][23] Li et al synthesized a Z-scheme BiVO 4 /g-CN photocatalytic system by thermal annealing and hydrothermal method. 24 The development of a reliable and efficient methodology to obtain reusable and stable heterostructure photocatalysts with optimized activity is still a great challenge.…”

Section: Introductionmentioning

confidence: 99%

Z-scheme 2D-m-BiVO₄ networks decorated by a g-CN nanosheet heterostructured photocatalyst with an excellent response to visible light

et al. 2020

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“…Since the CB position of Ta 2 O 5 ( E CB = −0.25 eV) is relatively close to the VB position of TiO 2 ( E VB = +2.78 eV), the e − on CB of Ta 2 O 5 can transfer to VB of TiO 2 and combine with the h + . More importantly, the formed Z‐scheme system can strengthen the reduction capacity of TiO 2 CB and oxidation capacity of Ta 2 O 5 VB, to enhance the sonocatalytic efficiency …”

Section: Resultsmentioning

confidence: 99%

Construction of Z‐scheme Pt‐TiO₂/(Er³⁺:Y₃Al₅O₁₂@Ta₂O₅)/HAP and its application in sonocatalytic degradation of prometryn and disinfection of Escherichia coli

Cao

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND: The recovery and reuse of sonocatalysts are the pivotal issues in the sonocatalytic degradation of organic pollutants. The use of some natural minerals as the carrier is not only beneficial to recycling of sonocatalysts, but also reduces the treatment costs of organic pollutants. Two kinds of hydroxyapatite (HAP), Ox Bone (OB)-HAP and synthesized (Syn)-HAP combine with the Pt-TiO 2 /(Er 3+ :Y 3 Al 5 O 12 @Ta 2 O 5 ) (P-TET) composite, obtaining two Z-scheme sonocatalysts, P-TET/OB-HAP and P-TET/Syn-HAP, respectively. The sonocatalytic activities of the prepared samples are investigated via degradation of prometryn and disinfection of Escherichia coli.RESULTS: A series of characterizations showed that the Z-scheme P-TET/(OB or Syn)-HAP sonocatalysts were prepared successfully. To evaluate their sonocatalytic activities, some influencing factors such as ultrasonic irradiation time, inorganic oxidants, used times and trapping agents on the sonocatalytic degradation prometryn were determined. The best degradation ratio (80.31% based on N computing and 85.07% based on S atom computing) of prometryn could be obtained for 10 mmol L −1 K 2 S 2 O 8 , 1.0 g L −1 P-TET/OB-HAP sonocatalyst and 150 min ultrasonic irradiation. The excellent sonocatalytic disinfection ratio (88.65%) of E. coli could also be obtained under 40 min ultrasound irradiation. Moreover, a possible mechanism on sonocatalytic degradation of prometryn was illustrated.CONCLUSION: The treated bovine bone HAP was directly used as a carrier to combine with P-TET to construct a novel Z-scheme P-TET/OB-HAP sonocatalyst. The high degradation ratio of prometryn and disinfection ratio of E. coli showed that P-TET/OB-HAP could be a promising sonocatalyst for the degradation of organic pollutants and the disinfection of bacteria.

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Direct Z-scheme composite of CdS and oxygen-defected CdWO 4 : An efficient visible-light-driven photocatalyst for hydrogen evolution

Cited by 195 publications

References 42 publications

Preparation of heterostructured WO3/TiO2 catalysts from wood fibers and its versatile photodegradation abilities

Preparation of heterostructured WO3/TiO2 catalysts from wood fibers and its versatile photodegradation abilities

Z-scheme 2D-m-BiVO₄ networks decorated by a g-CN nanosheet heterostructured photocatalyst with an excellent response to visible light

Construction of Z‐scheme Pt‐TiO₂/(Er³⁺:Y₃Al₅O₁₂@Ta₂O₅)/HAP and its application in sonocatalytic degradation of prometryn and disinfection of Escherichia coli

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Direct Z-scheme composite of CdS and oxygen-defected CdWO 4 : An efficient visible-light-driven photocatalyst for hydrogen evolution

Cited by 195 publications

References 42 publications

Preparation of heterostructured WO3/TiO2 catalysts from wood fibers and its versatile photodegradation abilities

Preparation of heterostructured WO3/TiO2 catalysts from wood fibers and its versatile photodegradation abilities

Z-scheme 2D-m-BiVO4 networks decorated by a g-CN nanosheet heterostructured photocatalyst with an excellent response to visible light

Construction of Z‐scheme Pt‐TiO2/(Er3+:Y3Al5O12@Ta2O5)/HAP and its application in sonocatalytic degradation of prometryn and disinfection of Escherichia coli

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Product

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Z-scheme 2D-m-BiVO₄ networks decorated by a g-CN nanosheet heterostructured photocatalyst with an excellent response to visible light

Construction of Z‐scheme Pt‐TiO₂/(Er³⁺:Y₃Al₅O₁₂@Ta₂O₅)/HAP and its application in sonocatalytic degradation of prometryn and disinfection of Escherichia coli