Enhanced Photocatalysis by Synergistic Piezotronic Effect and Exciton–Plasmon Interaction Based on (Ag‐Ag<sub>2</sub>S)/BaTiO<sub>3</sub> Heterostructures

Lei, Yanqiang; Xu, Shuya; Ding, Mei; Li, Linlin; Sun, Qijun; Wang, Zhong Lin

doi:10.1002/adfm.202005716

Cited by 81 publications

(34 citation statements)

References 44 publications

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“…On the one hand, the excessive consumption of fossil energy has also led to serious environmental crises such on the stirring speed of magnetic mixer, thus assuming that Cu 2 O acts as the medium to convert mechanical energy into chemical energy, and later the concept of mechanical-catalyzed H 2 production was proposed. [27] Up till now, the researches on piezocatalysis have been gradually matured with the reports of various piezocatalysts, such as BaTiO 3 , [28][29][30][31] NaNbO 3 , [32] g-C 3 N 4 , [24,33] Bi 4 Ti 3 O 12 , [34] ZnSnO 3 , [35,36] Na 0.5 Bi 0.5 TiO 3 , [37,38] etc. During this process, it is discovered that the piezocatalytic activity is closely related to some factors such as mechanical energy capture area and catalytic active site, and thus numerous efforts have been devoted to meet these requirements.…”

Section: Introductionmentioning

confidence: 99%

Synergetic Piezo‐Photocatalytic Hydrogen Evolution on Cd_xZn_1‐xS Solid‐Solution 1D Nanorods

Lin

Huang

et al. 2021

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as "greenhouse" effect, thermal pollution, etc. [1][2][3] Meanwhile, some renewable energy resources such as solar energy, wind energy and biological energy have become new research targets, [4][5][6] among which hydrogen (H 2 ) fuel is regarded as one of the most ideal secondary energies due to the characteristics of high combustion efficiency, good thermal conductivity and environmental-innocuity, etc. [7,8] At present, the traditional industrial H 2 production route which requires a large amount of coal and petroleum is of low efficiency. The utilization of inexhaustible solar energy to split water into H 2 and O 2 to solve both the energy and environmental issues shows great potential. [9,10] In the past several decades, the metal sulfides, especially solid solution sulfides (e.g., Cd x Zn 1-x S, Cd x Mn 1-x S, (CuIn) x Cd 2(1-x) S 2 , etc.) have become the promising representatives in H 2 production field due to the adjustable bandgap and visible light absorption capacity, among which Cd x Zn 1-x S materials have been extensively investigated, including the tuning of band energy levels, morphology control, fabrication of nanostructures, etc. Nevertheless, the instability during the photocatalytic reaction process caused by the "self-photocorrosion" phenomenon has always restricted the photocatalytic activity at the same time. [11][12][13][14][15][16][17] In addition to solar energy, the mechanical energy exists everywhere in our daily lives, such as water flow, wind, noise, etc. Inspired by the natural mechanical forces, researchers have proposed the notion of piezoelectric optoelectronic effect based on the cooperation of semiconductor, light excitation and piezoelectric characteristics. That is, utilizing the energy stemmed from surrounding environment (e.g., ultrasonic vibration) to induce the formation of polarization electric field from piezoelectrics, and suppress the shielding effect of photogenerated carriers under built-in electric field, subsequently modulating effective separation of intrinsic free electron-hole pairs to trigger redox reactions with surrounding substances, which is named as piezocatalysis. [18][19][20] Similar to photocatalysis, the piezocatalysis can also realize the degradation of organic dyes, [21][22][23] water splitting and energy storage, [24][25][26] etc., via the conversion of mechanical energy into chemical energy.In 1998, Japanese scholar Domen found that the generation amount of H 2 and O 2 far exceeds the dosage of Cu 2 O in the absence of light source, and the reaction rate mainly depends Conversion of solar and mechanical vibration energies for catalytic water splitting into H 2 has gained substantial attention recently. However, the sluggish charge separation and inefficient energy utilization in photocatalytic and piezocatalytic processes severely restrict the catalytic activity. In this paper, efficient piezo-photocatalytic H 2 evolution from water splitting is realized via simultaneously converting solar and vibration energy over one-dimensional (1D) nanorod-stru...

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Section: Introductionmentioning

confidence: 99%

Synergetic Piezo‐Photocatalytic Hydrogen Evolution on Cd_xZn_1‐xS Solid‐Solution 1D Nanorods

Lin

Huang

et al. 2021

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“…In comparison to other catalysts studied in the literature for piezo(photo)catalysis and degradation of the RhB dye, ,, ZBTO–Pt and ZBTO–FeO x displayed high catalytic activities, as is seen from the comparison in Table S2. The remaining small amount of activity was related to photolysis and sonolysis effects. − …”

Section: Resultsmentioning

confidence: 99%

“…As the concentration and mobility of charge carriers are very low in most existing piezoelectric semiconductors, , the associated efficiency for redox reactivity has severely restricted their practical applicability. Although recent efforts have improved on the catalytic performances of piezoelectric semiconductors by doping with metallic elements, building heterostructures, loading with metal particles, , and introduction of surface defects, improvements of the catalytic reactivities have not been significant enough to affect real applications. Devising new piezoelectric semiconductors and related assemblies that can efficiently promote charge transfer through inherent large electric polarization fields are therefore needed for successfully accelerate synthetic redox reactions.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Sunlight-Driven Reactive Species Generation via Polarization Field in Nanopiezoelectric Heterostructures

Zhou

Yan

Shen

et al. 2021

ACS Appl. Mater. Interfaces

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Although it is established that the force-induced electric polarization field of piezoelectric semiconductors can be used to tune the transfer rate of photoexcited charge carriers, there is still a lack of successful strategies to effectively improve the photocatalytic reactivity and solar-to-chemical conversion efficiency (SCC) of piezoelectric materials. Here, we are the first to prepare and study a kind of catalyst based on nanopiezoelectric heterostructures of LiNbO3-type ZnTiO3·TiO2 and tetragonal BaTiO3 with Pt or FeO x nanoparticle modification (i.e., ZBTO–Pt or ZBTO–FeO x ) for reactive species generation. With respect to the production of •OH and •O2 – radicals, higher amounts were observed in piezophotocatalysis relative to those for individual piezo- and photocatalysis. Benefiting from the charge transfer resistance decreases by the deposition of Pt and FeO x , the amounts of •OH radicals formed on ZBTO–Pt and ZBTO–FeO x were approximately 48 and 21% higher than that on isolated ZBTO during piezophotocatalysis, and for the amounts of •O2 – radicals the enhancements were approximately 11 and 6%, respectively. Furthermore, the concentrations of H2O2 formed on ZBTO–Pt and ZBTO–FeO x under piezophotocatalysis reached approximately 315 and 206 μM after 100 min of reaction (and was still increasing) corresponding to 0.10 and 0.06% SCCs, respectively, which were also much higher than the concentrations and SCCs observed for piezo- and photocatalysis. The enhancements of piezophotocatalytic activities with these piezoelectric materials were related to the mechanical strain exerted on ZBTO, which generated a larger electric polarization field than those on ZnTiO3·TiO2 and BaTiO3 as analyzed by a finite element method. This high-intensity electric polarization field accelerated the separation and transportation of photoexcited charge carriers in the highly sunlight responsive nanopiezoelectric heterostructures based on ZBTO–Pt and ZBTO–FeO x .

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“…It is to note that all such techniques are not well explored. To improve multicatalysis in ferroelectric materials, a novel metal‐based composite could be a promising method 21 . Novel metals such as Ag and Au are well reported for enhancing photocatalysis using the surface plasmon resonance effect 22,23 .…”

Section: Introductionmentioning

confidence: 99%

“…To improve multicatalysis in ferroelectric materials, a novel metal-based composite could be a promising method. 21 Novel metals such as Ag and Au are well reported for enhancing photocatalysis using the surface plasmon resonance effect. 22,23 Ferroelectric materials have also shown surface plasmon resonance for improved photocatalysis.…”

Section: Introductionmentioning

confidence: 99%

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba_0.7Ca_0.3)TiO₃–0.5Ba(Zr_0.1Ti_0.9)O₃ composites towards the degradation of organic pollutants

Sharma

Singhal

2022

J Am Ceram Soc

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A 0.5(Ba 0.7 Ca 0.3 )TiO 3 -0.5Ba(Zr 0.1 Ti 0.9 )O 3 (BCT-BZT) ceramic was studied for photocatalysis and piezocatalysis effects using dye degradation (methylene blue, rhodamine B, and methyl orange) and bacterial (Escherichia coli) disinfection from aqueous solution. To examine the effect of ferroelectric polarization, BCT-BZT powder was poled using the corona poling technique. Same time, BCT-BZT was converted into Ag/BCT-BZT composites as Ag induced surface plasmon resonance effect during photocatalysis. Piezocatalysis performance was assessed for dyes mineralization under ultrasonication. There was a significant impact of silver nanoparticles on the photo/piezocatalysis performance of BCT-BZT. Similarly, electric poling has also played a positive role in improving the photo/piezocatalysis in view of various dye degradation. These samples also showed effective antibacterial performance.

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Enhanced Photocatalysis by Synergistic Piezotronic Effect and Exciton–Plasmon Interaction Based on (Ag‐Ag₂S)/BaTiO₃ Heterostructures

Cited by 81 publications

References 44 publications

Synergetic Piezo‐Photocatalytic Hydrogen Evolution on Cd_xZn_1‐xS Solid‐Solution 1D Nanorods

Synergetic Piezo‐Photocatalytic Hydrogen Evolution on Cd_xZn_1‐xS Solid‐Solution 1D Nanorods

Enhanced Sunlight-Driven Reactive Species Generation via Polarization Field in Nanopiezoelectric Heterostructures

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba_0.7Ca_0.3)TiO₃–0.5Ba(Zr_0.1Ti_0.9)O₃ composites towards the degradation of organic pollutants

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Enhanced Photocatalysis by Synergistic Piezotronic Effect and Exciton–Plasmon Interaction Based on (Ag‐Ag2S)/BaTiO3 Heterostructures

Cited by 81 publications

References 44 publications

Synergetic Piezo‐Photocatalytic Hydrogen Evolution on CdxZn1‐xS Solid‐Solution 1D Nanorods

Synergetic Piezo‐Photocatalytic Hydrogen Evolution on CdxZn1‐xS Solid‐Solution 1D Nanorods

Enhanced Sunlight-Driven Reactive Species Generation via Polarization Field in Nanopiezoelectric Heterostructures

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba0.7Ca0.3)TiO3–0.5Ba(Zr0.1Ti0.9)O3 composites towards the degradation of organic pollutants

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Enhanced Photocatalysis by Synergistic Piezotronic Effect and Exciton–Plasmon Interaction Based on (Ag‐Ag₂S)/BaTiO₃ Heterostructures

Synergetic Piezo‐Photocatalytic Hydrogen Evolution on Cd_xZn_1‐xS Solid‐Solution 1D Nanorods

Synergetic Piezo‐Photocatalytic Hydrogen Evolution on Cd_xZn_1‐xS Solid‐Solution 1D Nanorods

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba_0.7Ca_0.3)TiO₃–0.5Ba(Zr_0.1Ti_0.9)O₃ composites towards the degradation of organic pollutants