Efficient Doping Induced by Charge Transfer at the Hetero-Interface to Enhance Photocatalytic Performance

Zhang, Bingke; Wang, Dongbo; Cao, Jiamu; Zhao, Chenchen; Pan, Jingwen; Liu, Donghao; Liu, Sihang; Zeng, Zhi; Chen, Tianyuan; Liu, Gang; Jiao, Shujie; Xu, Zhikun; Huang, Yuewu; Zhao, Liancheng; Wang, Jinzhong

doi:10.1021/acsami.2c19209

Cited by 17 publications

(3 citation statements)

References 58 publications

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“…As for 0.05BNO-BOBI, the lattice spacing of (110) is 0.281 nm, which is between BiOBr and BiOI of the lattice spacing (Figure 2g), because I − has a wider ionic radius than Br − . 38,44,45 Generally, the lattice fringe of the Bi 3 NbO 7 (111) plane is 0.310 nm, 46 which is consistent with Figure 2h. Significantly, the main crystal planes of 0.05BNO-BOB in the HRTEM image correspond with the XRD patterns of 0.05BNO-BOB.…”

Section: Resultssupporting

confidence: 84%

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Wang

et al. 2023

ACS Appl. Nano Mater.

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Photocatalytic activation of persulfate has been receiving much attention in the field of wastewater treatment. In this work, the Bi 3 NbO 7 /BiOBr 0.75 I 0.25 nanosheet S-scheme heterojunctions were synthesized by the solvothermal method to activate persulfate. The degradation rates of rhodamine B (RhB) and TC by 0.05Bi 3 NbO 7 / BiOBr 0.75 I 0.25 were 95.4 and 74.7% in 2 h, respectively, indicating that 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 nanosheet heterojunctions have good photocatalytic activity. The synergistic effect between persulfate and the 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 photocatalyst was investigated under different persulfate contents, pH values, and light conditions. The RhB degradation rate of 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 activation persulfate is more than twice that of 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 , and the range of pH adaptation is wide. Radical quenching experiments showed that h + , • O 2 − , and •OH were the important active groups. Persulfate and catalysts produce a synergistic effect, which is S 2 O 8 2− reacting with e − to form •SO 4 − in the photocatalytic process. Meanwhile, the formation of •SO 4 − accelerates the process of photocatalytic reaction. This work provides ideas for the design of efficient and pollution-free photocatalysts for the activation of persulfate.

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Section: Resultssupporting

confidence: 84%

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Wang

et al. 2023

ACS Appl. Nano Mater.

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“…Sensitive detection based on the polarization properties of materials is also a worthy direction for further research . Based on the context of diversified exploration, research on photodetectors fabricated with lower-dimension, nanoscale materials is thriving in the pursuit of unique dimensionally dependent traits to meet the above-mentioned diverse application demands. − Especially, nanowires have a large surface-area-to-volume ratio and the presence of border defections, which facilitate light harvesting, enhance sensitivity, , photostability and band-gap tunability owing to the quantum confinement effect, − good antireflection characteristics, and rapid carrier transport. , All of these factors make nanowires an attractive candidate for application in high-performance photodetectors.…”

Section: Introductionmentioning

confidence: 99%

Self-Assembled BiGaSeAs Composite Superlattice-Structured Nanowire for Broad-Band Photodetection

Zeng,

Wang,

Cao

et al. 2024

ACS Appl. Mater. Interfaces

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Photodetectors with a broad-band response range are widely used in many fields and are regarded as pivotal components of the modern miniaturized electronics industry. However, commercial broad-band photodetectors composed of traditional bulk semiconductor materials are still limited by complex preparation techniques, high costs, and a lack of mechanical strength and flexibility, which are difficult to satisfy the increasing demand for flexible and wearable optoelectronics. Therefore, researchers have been devoted to finding new strategies to obtain flexible, stable, and high-performance broad-band photodetectors. In this work, a novel self-assembled BiGaSeAs composite superlattice-structured nanowire was developed with a simple chemical vapor deposition method for easy fabrication. After the device assembling, the photodetector showed outstanding performance in terms of obvious I on /I off (13.9), broad-band photoresponse (365−940 nm), excellent responsivity (1007.67 A/W), high detectivity (9.38 × 10 9 Jones), and rapid response (21 and 23 ms). The formation of microheterojunctions among various materials inside the nanowires also contributed to their extended broad-spectrum response and outstanding detection ability. These results indicate that the BiGaSeAs nanowires have potential applications in the field of flexible and wearable electronics.

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“…These ·OH and • O 2 – radicals degrade organic pollutants into smaller, nontoxic compounds such as CO 2 and H 2 O. , Notably, the photocatalytic performance of the semiconductor can be improved by constructing heterojunctions. This is because heterojunctions promote the efficient separation and utilization of the photogenerated charge carriers. − …”

Section: Introductionmentioning

confidence: 99%

Recyclable Flower-like Fe₃O₄@SiO₂@NiO Nanoparticles for Rhodamine B Adsorption and Photocatalytic Degradation

Ye,

Li,

et al. 2023

ACS Appl. Nano Mater.

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Tremendous efforts have been dedicated to developing waste dye treatment methods that are recyclable and efficient. However, challenges such as high toxicity, poor dispersion in aqueous solutions, and the high residual rate problems of some catalysts persist. Herein, inspired by the superparamagnetic properties and the electrostatic absorption capacity of Fe 3 O 4 and the photocatalytic activity of NiO, flower-like, adsorptive-photocatalytic dual-effect dye scavengers, named Fe 3 O 4 @SiO 2 @NiO magnetic nanoparticles (FSN MNPs), are fabricated. The outermost NiO layer with a large specific surface area of 211.876 m 2 /g effectively adsorbs dyes via electrostatic interactions. More importantly, the introduction of an inert protective SiO 2 layer between the Fe 3 O 4 core and NiO shell enhances the chemical stability and catalytic performance of the FSN MNPs. These FSN MNPs are recyclable and can be reused at least six times. Their photocatalytic activity against rhodamine B (RhB) was assessed. They show a high RhB degradation efficiency of up to 99.50%. Therefore, the FSN MNPs are promising catalysts for dye degradation in industrial wastewater treatment applications.

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Efficient Doping Induced by Charge Transfer at the Hetero-Interface to Enhance Photocatalytic Performance

Cited by 17 publications

References 58 publications

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Self-Assembled BiGaSeAs Composite Superlattice-Structured Nanowire for Broad-Band Photodetection

Recyclable Flower-like Fe₃O₄@SiO₂@NiO Nanoparticles for Rhodamine B Adsorption and Photocatalytic Degradation

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Efficient Doping Induced by Charge Transfer at the Hetero-Interface to Enhance Photocatalytic Performance

Cited by 17 publications

References 58 publications

Persulfate Activation of Photocatalysts Based on S-Scheme Bi3NbO7/BiOBr0.75I0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Persulfate Activation of Photocatalysts Based on S-Scheme Bi3NbO7/BiOBr0.75I0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Self-Assembled BiGaSeAs Composite Superlattice-Structured Nanowire for Broad-Band Photodetection

Recyclable Flower-like Fe3O4@SiO2@NiO Nanoparticles for Rhodamine B Adsorption and Photocatalytic Degradation

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Product

Resources

About

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Recyclable Flower-like Fe₃O₄@SiO₂@NiO Nanoparticles for Rhodamine B Adsorption and Photocatalytic Degradation