nip-type Sn-based perovskite solar cells with metal chalcogenide electron extraction layers DOI Creative Commons
Jia Liang, Tianpeng Li, Bin Li

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 6, 2024

Abstract nip-type lead-based perovskite solar cells (LPSCs) swept nearly all record power conversion efficiencies (PCEs) since the advent of perovskite-based photovoltaic technology. In contrast, tin-based (TPSCs) are not satisfied and lag far behind their pin-type counterparts. A key contributing factor is indiscriminate adoption metal oxide electron transport layers (ETLs) from nip-type LPSCs to TPSCs. Here, we reveal origin underlying mechanism ETLs on poor performance TPSC propose a novel chalcogenide ETL, specifically Sn(S0.92Se0.08)2, replace them. This newly developed ETL only circumvents oxygen molecules desorption impedes Sn2+ oxidation, but also exhibits tailored band structure, improved morphology, heightened conductivity, increased mobility. As result, TPSCs with Sn(S0.92Se0.08)2 demonstrate significant increase in open-circuit voltage, rising from 0.48 0.73V, noteworthy enhancement PCE, soaring 6.98 11.78%, representing more than 65% improvement. Additionally, exhibit operational stability, retaining over 95% initial efficiency after 1632 h. Our findings underscore substantial advancement showcasing chalcogenides as promising candidates for future applications.

Language: Английский

Utilization of Stable and Efficient High‐Entropy (Ni0.2Zn0.2Mg0.2Cu0.2Co0.2)Al2O4 Catalyst with Polyvalent Transition Metals to Boost Peroxymonosulfate Activation toward Pollutant Degradation DOI Open Access
Xinmiao Yu, Shifa Wang,

Yuanyuan Zhang

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Abstract A polyacrylamide gel method has been used to synthesize a variety of polyvalent‐transition‐metal‐doped Ni position high entropy spinel oxides (Ni 0.2 Zn Mg Cu Co )Al 2 O 4 ‐800 °C (A ) on the basis NiAl , and catalytic activity is studied under synergistic action peroxymonosulfate (PMS) activation simulated sunlight. The containing polyvalent transition metals 2+ can effectively activate PMS efficiently degrade levofloxacin (LEV) tetracycline hydrochloride (TCH) sunlight irradiation. After 90 min light exposure, degradation percentages LEV (50 mg L −1 TCH (100 by /PMS/vis system reach 87.0% 90.2%, respectively. superoxide radicals, photoinduced holes, singlet dominate process, while hydroxyl radicals sulfate play only small role. adsorption energy charge density difference between different systems are calculated functional theory, efficiency combining with change length O─O bond after adsorption. mechanism proposed, which provides new idea for study in field catalysis.

Language: Английский

Citations

2
Slow Light Effect Enhances the Photocatalytic Effect of Inverse Opal TiO2-Based Photonic Nanocrystals DOI
Jiaojiao Zhang,

Xiaolu Cai,

Xuewen Fu

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(13), P. 15376 - 15386

Published: July 2, 2024

The slow light effect at the band gap edge of photonic nanocrystals (PhCs) can improve utilization efficiency photocatalysts by enhancing collection. This study reported an anatase inverse opal TiO2 (IO TiO2) with a 3D closely packed face-centered cubic structure prepared using PhC template. simulation electric field modulus distribution in was performed, and enhancement photocatalytic caused red blue edges analyzed. experimental results rhodamine B degradation agreed simulation. IO has high specific surface area (91 m2/g), which is 4.33 times that powder TiO2, also pore volumes (0.13 cm3/g). In addition, it facilitates separation photogenerated carriers due to existence large pores are periodically interconnected, thus, significantly improving efficiency. apparent rate constant 9.96 × 10–3 min–1, 1.81 TiO2. 200 nm spectrally closer electronic Also, presents optimal photodegradation (70.02%), its 2.13 higher than porous block without gap. Moreover, detailed path possible reaction mechanism proposed based on free radical trapping experiment EPR analysis. research offered opportunities for deeper understanding more efficient blue-edge effect. be leveraged enhance optical nonlinear effect, practical significance solar energy collection conversion, switches, photocatalysis.

Language: Английский

Citations

4
Coaxial dual-tube deviceization of electrode assemblies in paired electrocatalysis for reliable and scalable water remediation DOI
Lele Cui, Mingyang Huang,

Shu Cheng

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: 368, P. 125128 - 125128

Published: Feb. 5, 2025

Language: Английский

Citations

0
Pd/TiO2 single-atom catalyst for the selective reduction of 4-chlorophenol to cyclohexanone via relay photocatalysis DOI
Jiali Huang,

Fanglin Dao,

Jing Xie

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132109 - 132109

Published: Feb. 1, 2025

Language: Английский

Citations

0
Synergetic promotional effect of dual oxygen vacancies and 2D/2D TiO2/BiOBr S-scheme heterostructure for boosted photocatalytic oxytetracycline removal DOI
Ying Tian,

Kunfeng Zhang,

Haoran Zhao

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136636 - 136636

Published: March 1, 2025

Language: Английский

Citations

0
Synthesis of Bismuth Niobate Nanoparticles Rich in Oxygen Vacancies and Efficient Degradation of Tetracycline Hydrochloride DOI
Yaru Zhang,

Xicheng Li,

Byung Chul Ji

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

With the increasing energy crisis and environmental pollution problems, development of solar-powered photocatalytic technologies for green efficient removal emerging pollutants from aquatic ecosystems has become an urgent need. Bismuth niobate (Bi3NbO7), as a bismuth-based photocatalyst, attracted much attention due to its unique electronic structure optical properties. However, Bi3NbO7 synthesized by traditional hydrothermal method suffers problems large size, limited active sites, harsh preparation conditions, which severely limit performance. In this study, small-sized nanoparticles (BNO-Ov-3) enriched with oxygen vacancies were successfully one-step solvothermal using ethylene glycol solvent structure-directing agent. Glycol not only inhibited grain growth reduced size micrometers nanometers, but also promoted formation through reducing property. Compared conventional method, BNO-Ov-3 enhanced degradation rate tetracycline hydrochloride (TC) 49.8% 92.1% under visible light irradiation. The mechanism performance enhancement was revealed XPS, EPR, PL characterization: synergistic effect nanosize effectively photogenerated carrier complexation charge separation transfer. This study provides strategy controlled synthesis bismuth lays theoretical foundation application in photocatalysis.

Language: Английский

Citations

0
Oxygen Vacancies Enabled MOF-Derived Tb–SnO2 Compound for a High-Response, Low Detection Limit, and Humidity-Tolerant Chemiresistive Gas Sensor of Formaldehyde DOI
Na Chu, Zhihua Wang, Fubo Gu

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: 7(7), P. 3041 - 3054

Published: March 31, 2025

Language: Английский

Citations

0
Cationic conjugated microporous polymers for efficient quinolone antibiotics extraction: Experimental and DFT study DOI

G. Ge,

Na Li,

Ying-Jie Hao

et al.

Journal of Chromatography A, Journal Year: 2025, Volume and Issue: 1752, P. 465973 - 465973

Published: April 17, 2025

Language: Английский

Citations

0
Interface Defects and Carrier Regulation in MOF-Derived Co3O4/In2O3 Composite Materials for Enhanced Selective Detection of HCHO DOI
Yi Chen, Dongmei Han, Zhihua Wang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: April 24, 2024

Gas sensors for real-time monitoring of low HCHO concentrations have promising applications in the field health protection and air treatment, this work reports a novel resistive gas sensor with high sensitivity selectivity to HCHO. The MOF-derived hollow In2O3 was mixed ZIF-67(Co) calcined twice obtain Co3O4/In2O3 (hereafter collectively termed MZO-6) composite enriched oxygen vacancies, tests such as XPS EPR proved that strong interfacial electronic coupling increased vacancies. gas-sensitive test results show MZO-6 abundant vacancies has higher response value (11,003) 10 ppm achieves fast response/recovery time (11/181 s) at lower operating temperature (140 °C). material significantly enhances reduces interference common pollutant gases ethanol, acetone, xylene. There is no significant fluctuation resistance values 30-day long-term stability test, good stability. synergistic effect heterostructure altered formaldehyde adsorption intermediate pathway reduced reaction activation energy, enhancing responsiveness material.

Language: Английский

Citations

3
In-situ construction of homogeneous Bi clusters by β-particle: MoS2/BiFeO3-x@POPs-β activate oxalate to photocatalytic oxidate hazardous oxygenated salts DOI
Jiang Wang,

Binbin Tan,

Z.F. Zhang

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128615 - 128615

Published: June 30, 2024

Language: Английский

Citations

1