CdSe Quantum Dots Supported on Sb2S3 Nanorods as S-Scheme Heterojunction Photoanode in Photoelectrochemical Cells DOI

Zhen Ma,

Yuanhao Yang,

Xueling Wei

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(20), P. 24213 - 24223

Published: Oct. 7, 2024

The narrow bandgap semiconductor Sb2S3 has been extensively utilized in solar cells for its impressive light absorption coefficient and carrier mobility. However, a large number of deep energy defects provide recombination sites that limit photoelectrochemical (PEC) performance. In this study, nanorods (NRs) CdSe quantum dots (QDs) were successfully prepared, Sb2S3/CdSe-annealed quasi-one-dimensional heterojunction photoanodes with the S-scheme constructed. composite photoelectrode achieves 12 times increase photocurrent density compared to 0.4 mA cm–2 photoelectrode. Overall, synergistic effect [hk1]-oriented NRs promotes transport, achieving spatial separation photogenerated carriers efficiently weakening electron–hole pair. This study provides simple method low-cost development [hk1] orientation an idea enhance PEC water splitting direction.

Language: Английский

Enhanced oxygen anions generation on Bi2S3/Sb2S3 heterostructure by visible light for trace H2S detection at room temperature DOI
Meiling Yu, Jiayu Li,

Dongmin Yin

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 476, P. 134932 - 134932

Published: June 15, 2024

Language: Английский

Citations

13
Two-dimensional nanocomposite materials for photoelectrochemical water-splitting applications: An overview DOI Creative Commons

Tse-Wei Chen,

Shen‐Ming Chen, Palraj Kalimuthu

et al.

International Journal of Electrochemical Science, Journal Year: 2024, Volume and Issue: 19(5), P. 100576 - 100576

Published: April 4, 2024

Recently, researchers have directed considerable attention towards developing eco-friendly fuel energy technology suitable for widespread implementation. Photoelectrochemical (PEC) based water-splitting has been found to play a crucial role in converting solar into chemical energy. Therefore, through the PEC process is considered one of most effective methods generating and sustainable sources. Among various nanomaterials-based photo-electrocatalysts reported literature, two-dimensional (2D) materials-based photoelectrocatalysts extensively applied across numerous domains, serving as cost-effective efficient catalysts. Their adaptable structures compositions provide significant prospects avenues create tailored electrocatalysts, presenting abundant opportunities design strategies. Extensive discussions covered this review regarding employed synthesizing 2D their hybrid materials. These also encompass diverse strategies alter physicochemical properties developed photo-electrocatalysts. In addition, ultimately offers valuable insights potential applications 2D-based composites merits limitations. The outlines some proposed research directions that will be pursued field future.

Language: Английский

Citations

8
Effective Charge Separation in Photoelectrochemical Water Splitting: A Review from Advanced Evaluation Methods to Materials Design DOI
Haoran Zhang, Bingqing Zhang, Xianlong Wang

et al.

Sustainable Energy & Fuels, Journal Year: 2024, Volume and Issue: 8(11), P. 2357 - 2382

Published: Jan. 1, 2024

The total efficiency of PEC water splitting can be divided into light absorption, charge separation, and surface injection efficiencies. Charge separation process in ns–μs is valuable to modulate but challenging clarify the working mechanism.

Language: Английский

Citations

7
Fabrication of Sb2S3@In2Se3 heterojunction photocathodes with [hk1] dominant orientation towards photoelectrochemical water splitting DOI
Zhen Ma,

Xueling Wei,

Huakang Yu

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 129135 - 129135

Published: Aug. 9, 2024

Language: Английский

Citations

3
Fabrication of Flower-Shaped Sb2S3/Fe2O3 Heterostructures for Enhanced Photoelectrochemical Performance DOI
Zengyuan Li, Nan Jiang,

Kaixin Wang

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(23), P. 12097 - 12106

Published: May 30, 2024

Antimony sulfide (Sb2S3) has been recognized as a catalytic material for splitting water by solar energy because of its suitable narrow band gap, high absorption coefficient, and abundance elements. However, many deep-level defects in Sb2S3 result significant recombination photoexcited electron–hole pairs, weakening photoelectrochemical performance. Here, using simple hydrothermal spin-coating method, we fabricated step-scheme heterojunction Sb2S3/α-Fe2O3 to improve the performance pure Sb2S3. Our photoanode photocurrent density 1.18 mA/cm2 at 1.23 V vs reversible hydrogen electrode, 1.39 times higher than that (0.84 mA/cm2). In addition, our lower onset potential, absorbance intensity, incident photon-to-current conversion efficiency, applied bias charge transfer resistance compared Based on ultraviolet photoelectron spectroscopy, constructed structure explain enhancement. This work offers promising strategy optimize photoelectrodes solar-driven splitting.

Language: Английский

Citations

2
CdSe Quantum Dots Supported on Sb2S3 Nanorods as S-Scheme Heterojunction Photoanode in Photoelectrochemical Cells DOI

Zhen Ma,

Yuanhao Yang,

Xueling Wei

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(20), P. 24213 - 24223

Published: Oct. 7, 2024

The narrow bandgap semiconductor Sb2S3 has been extensively utilized in solar cells for its impressive light absorption coefficient and carrier mobility. However, a large number of deep energy defects provide recombination sites that limit photoelectrochemical (PEC) performance. In this study, nanorods (NRs) CdSe quantum dots (QDs) were successfully prepared, Sb2S3/CdSe-annealed quasi-one-dimensional heterojunction photoanodes with the S-scheme constructed. composite photoelectrode achieves 12 times increase photocurrent density compared to 0.4 mA cm–2 photoelectrode. Overall, synergistic effect [hk1]-oriented NRs promotes transport, achieving spatial separation photogenerated carriers efficiently weakening electron–hole pair. This study provides simple method low-cost development [hk1] orientation an idea enhance PEC water splitting direction.

Language: Английский

Citations

2