Zinc oxide-tungsten oxide (ZnO-WO3) composite for solar light-assisted degradation of organic dyes

Aziz, Fatima; Warsi, Al-Zoha; Somaily, H.H.; Din, Muhammad Imran; Sabeeh, Humera; Warsi, Muhammad Farooq; Shakir, Imran

doi:10.1007/s11814-022-1368-9

Cited by 9 publications

(2 citation statements)

References 34 publications

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“…Various strategies, such as modifying surface properties, using heterostructures, and interfacial engineering, have been proposed to improve spatial charge separation. [ 14,15,20–23 ]…”

Section: Introductionmentioning

confidence: 99%

Strategies to Enhance Interfacial Spatial Charge Separation for High‐Efficiency Photocatalytic Overall Water‐Splitting: A Review

Odabasi Lee,

Lakhera,

Yong

2023

Adv Energy and Sustain Res

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Developing efficient photocatalysts for overall water‐splitting (OWS) has garnered considerable attention due to their potential in renewable energy conversion and storage. Enhancing the efficiency of interfacial spatial charge separation poses a key challenge in this field, as it plays a momentous role in the photocatalytic process. In this review article, a range of strategies aimed at improving interfacial spatial charge separation in photocatalysts for realizing high‐efficiency OWS are explored. To provide a comprehensive understanding, first the fundamentals of photocatalytic water‐splitting are introduced and the main bottlenecks in the reaction process, along with various charge separation and transfer mechanisms are identified. Subsequently, recent advancements and efforts in designing spatial charge separation at the interfaces of 0D, 1D, 2D, and 3D nanostructured photocatalysts are discussed. Finally, a summary is presented and a long‐term outlook for spatial charge separation in the field of OWS is offered. By consolidating the current state‐of‐the‐art research, this review highlights the key challenges and favorable circumstances for future advancements in the pursuit of efficient OWS.

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“…Various strategies, such as modifying surface properties, using heterostructures, and interfacial engineering, have been proposed to improve spatial charge separation. [ 14,15,20–23 ]…”

Section: Introductionmentioning

confidence: 99%

Strategies to Enhance Interfacial Spatial Charge Separation for High‐Efficiency Photocatalytic Overall Water‐Splitting: A Review

Odabasi Lee,

Lakhera,

Yong

2023

Adv Energy and Sustain Res

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“…Besides, hybridizing WO 3 with ZnO importantly changed the forbidden band width of the nanocomposites, thus improving the visible light response and the photocatalytic degradation of RhB. The WO 3 /ZnO composite synthesized by the co-precipitation and ultra-sonication routes exhibited the synergetic effect of counterpart semiconductors to increase the charge separation and reduce the charge recombination, which can remarkably improve the photocatalytic degradation of methylene blue (MB) and RhB 39 .…”

Section: Introductionmentioning

confidence: 99%

Highly efficient ZnO/WO3 nanocomposites towards photocatalytic gold recovery from industrial cyanide-based gold plating wastewater

Sangkhanak,

Kunthakudee,

Hunsom

et al. 2023

Sci Rep

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Discharging the gold-contained wastewater is an economic loss. In this work, a set of ZnO/WO3 was facile synthesized by hydrothermal method in order to recover gold from the industrial cyanide-based gold plating wastewater by photocatalytic process. Effect of ZnO contents coupled with WO3 was first explored. Then, effects of operating condition including initial pH of wastewater, type of hole scavenger, concentration of the best hole scavenger and photocatalyst dose were explored. A series of experimental results demonstrated that the ZnO/WO3 nanocomposite with 5 wt% ZnO (Z5.0/WO3) depicted the highest photocatalytic activity for gold recovery due to the synergetic effect of oxygen vacancies, a well-constructed ZnO/WO3 heterostructure and an appropriate band position alignment with respect to the redox potentials of [Au(CN)2]− and hole scavengers. Via this ZnO/WO3 nanocomposite, approximately 99.5% of gold ions was recovered within 5 h using light intensity of 3.57 mW/cm2, catalyst dose of 2.0 g/L, ethanol concentration of 20 vol% and initial pH of wastewater of 11.2. In addition, high stability and reusability were observed with the best nanocomposite even at the 5th reuse. This work provides the guidance and pave the way for designing the ZnO/WO3 nanocomposite for precious metal recovery from a real industrial wastewater.

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Magnetic wood sponge: efficient oil/water separation, dye degradation, and heavy metal removal

Vojdani Saghir,

Peighambari-kalat,

Goharshadi

2024

Appl. Phys. A

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Zinc oxide-tungsten oxide (ZnO-WO3) composite for solar light-assisted degradation of organic dyes

Cited by 9 publications

References 34 publications

Strategies to Enhance Interfacial Spatial Charge Separation for High‐Efficiency Photocatalytic Overall Water‐Splitting: A Review

Strategies to Enhance Interfacial Spatial Charge Separation for High‐Efficiency Photocatalytic Overall Water‐Splitting: A Review

Highly efficient ZnO/WO3 nanocomposites towards photocatalytic gold recovery from industrial cyanide-based gold plating wastewater

Magnetic wood sponge: efficient oil/water separation, dye degradation, and heavy metal removal

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