INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2023
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IF 7.2
Wenjing Zhang,Dekang Liu,Wei Jin,Dekai Zhang,Tao Sun,Enzhou Liu,Xiaoyun Hu,Hui Miao
Bi 2 O 2 S has gradually attracted the interest of researchers due to its excellent carrier mobility and light absorption property . However, its application in photoelectrochemical water splitting is very limited. In this work, hydrothermal treatment is performed on the obtained Bi 2 O 2 S film. Bi 2 S 3 nanowires are in-situ evolved by the topological transformation of Bi 2 O 2 S, and heterojunction with atomic-level contact interface is constructed. The photocurrent density of Bi 2 O 2 S/Bi 2 S 3 photoelectrode at 1.23 V vs. RHE is 3.82 mA/cm 2 , which is 14 times that of monomer Bi 2 O 2 S. The Bi 2 O 2 S/Bi 2 S 3 heterojunction co-shared by Bi atoms has a close contact coupling interface, which stimulates stronger interfacial charge transfer. In addition, the 2D/1D morphology of the synthesized Bi 2 O 2 S nanosheets combined with Bi 2 S 3 nanowires by fine tuning builds a channel for fast carrier transport. This study provides reference and inspiration for the preparation of highly active heterostructures, and expands new paths for the design and application of Bi 2 O 2 S based photoelectrodes.
研究领域:
材料科学
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光电化学
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纳米技术
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DOI
高影响因子
Journal of Materials Chemistry C
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2024
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IF 5.7
Bingwei Li,Kai Wang,Nanyin Zhao,Zhentao Fu,Mingtao Wang,Zhuoqiao Xie,Jun Li
The rapid development of the internet of things (IOT) has led to a great demand for low-cost and high-performance self-powered photodetectors with ease of preparation. However, current self-powered photodetectors remain restricted by the high preparation costs or poor performance in the broad-spectrum range. In this paper, we report an organic–inorganic heterostructure self-powered photodetector constructed by compositing polyaniline (PANI) with Bi2O2S nanosheets, which showcases great potential in the IOT system, benefiting from the synergy of low cost and high performance in the broad-spectrum range (350–760 nm). In detail, at 0 V, the photocurrent density reached the maximum of ∼2.9 μA cm−2, while the dark current density was only ∼16 nA cm−2. Thus, the developed self-powered photodetector gave the maximum responsivity of ∼29.5 mA W−1 at 350 nm under 0 V, which is comparable to that of commercial self-powered electronic products with superior performance. The prominent performance of the device is attributed to the formation of an S-type heterojunction, which could be confirmed by density functional theory (DFT) and photoluminescence (PL). In addition, the response time (0.1 s) and cycle stability (over 10 days) confirm the reliability of the equipment. Overall, the proposed device provides a promising route for developing a low-cost, high-performance, broad-spectrum self-powered photodetector.
研究领域:
材料科学
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光电技术
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DOI
高影响因子
Surfaces and Interfaces
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2024
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IF 5.7
Xueling Wei,Yuanhao Yang,Zhen Ma,Qiujie Li,Qian Sun,Dekai Zhang,Enzhou Liu,Hui Miao
Bismuth oxysulfide (Bi 2 O 2 S), as a unique new two-dimensional layered material, has gradually attracted the interest of researchers because of its excellent photoelectric properties. How to enhance its charge kinetics is the key to improve photoelectrochemical (PEC) properties. Herein, the cascade type II-I heterostructure of Bi 2 O 2 S/Bi 2 S 3 /ZnIn 2 S 4 O (oxygen doping) was rationally fabricated by oxygen doping for efficient PEC water splitting through one-step hydrothermal method. Bi 2 S 3 was in close contact with Bi 2 O 2 S through Bi atom sharing, while ZnIn 2 S 4 O has enhanced polarity. The double-synergistic effect of the cascade II-I heterojunction with strong interface interaction and asymmetric crystal modification could greatly promote the transfer efficiency of the surface charge and the bulk charge, inhibited the photogenerated carrier recombination, and enhanced the overall charge dynamics. The results showed that the photocurrent density of Bi 2 O 2 S/Bi 2 S 3 /ZnIn 2 S 4 O composite photoanode was 4.82 mA cm −2 under the condition of 1.23 V vs. RHE, which was 9.09 times with that of monomer Bi 2 O 2 S. This study opened up a new way for the application of Bi 2 O 2 S-based photoelectrodes in the field of PEC water splitting.
研究领域:
材料科学
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光催化
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DOI
高影响因子
MATERIALS & DESIGN
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2024
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IF 7.6
Baolong Shi,Bingyu Chen,Xinzhe Yan,Huyue Cao,Hao Sun,Dalei Wang,Changwei Bi,Chao Wang,Yueyue Wang,Chaoqing Dai,Wei Liu
The overuse of tetracycline, a broad-spectrum antibiotic, has posed a severe threat to both the ecological environment and public safety. This paper presents the one-step synthesis of Bi 2 O 2 S/Bi 2 O 3 heterojunctions utilizing a simple and environmentally friendly chemical synthesis method. These heterojunctions were subsequently employed in the fabrication of photoelectrochemical sensors tailored for tetracycline detection. Under optimal conditions, with a bias voltage of 0 V, the sensor manifests exceptional self-powered capability, yielding a photocurrent density of approximately 270nA/cm 2 . The detection sensitivity for tetracycline spans a wide linear range from 0.1 pM to 200 nM, accompanied by a remarkably low detection limit of 0.5 pM (S/N = 3). Furthermore, the photoelectrochemical sensor demonstrates commendable stability, rapid response characteristics, high selectivity, and consistent detection reproducibility. These findings not only offer a novel opportunity for advancing photoelectrochemical sensors but also present a fresh perspective in the realm of photoelectrochemical sensor development.
研究领域:
分析化学
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环境科学
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材料科学
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纳米技术
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
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2024
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IF 5.7
Wei Chen,Xiang Zhang,Minhui Chi,Qi Zheng
Background Designing heterojunctions with efficient electron-hole separation holds great promise for improving photoelectric response. Results Herein, we reported a multifunctional Pt co-catalyst-modified Bi 2 O 2 S nanoflowers (BOS NFs) photocatalytic component for achieving an efficient photoelectric chemistry (PEC) immunosensor for alpha-fetoprotein (AFP). Briefly, the Pt co-catalyst improved the intrinsic band gap structure of BOS on the one hand, and on the other hand, it was able to achieve a rapid decomposition of hydrogen peroxide to hydroxyl radicals, which led to the improvement of electrochemical half-responses during the amplification of target immunosignals. In addition, Pt-functionalized BOS NFs (BOS–Pt) exhibited peroxidase-like enzymatic reaction activity and related properties. By enzyme-linked immunosorbent assay, a sandwich immuno-model in the presence of AFP catalyzed the production of hydrogen peroxide from the substrate glucose and the conversion of a sizable photoelectrochemical signal catalyzed by BOS-Pt. Following condition optimization, it was determined that the developed sensor exhibited a specific response to AFP over a wide linear range of 0.05–50 ng mL −1 . Significance This work provides a new strategy for developing efficient immunosensors from the perspective of modulating photoelectrochemical half-reactions.
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DOI
PubMed
高影响因子
CRYSTAL GROWTH & DESIGN
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2025
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IF 3.4
Wenju Wu,Chao Gu,Gang Liu,Xinmei Liu,Limin Dong,Dongbo Wang,Yuewu Huang,Jingzhou Zhang,Yuhan Li,Fei Li,Qianshi Wang,Mingyang Wu,Liancheng Zhao
This research accomplished the controlled fabrication of a 1D/2D Bi2S3/Bi2O2S heterostructure for hybrid supercapacitor applications, where Bi2S3 nanorods were grown on Bi2O2S nanosheets to form the composite material. When the ratio of Bi2S3 to Bi2O2S is controlled at 5:3, the composite material demonstrates outstanding electrochemical properties. This is due to the appropriate content of Bi2O2S, which helps construct a good interface and enhance ion diffusion capability, thereby improving the electrochemical kinetics. The strategic combination of Bi2S3’s theoretical capacity and Bi2O2S’s structural stability yields a composite material with remarkable electrochemical properties, including enhanced reversible capacity and minimized polarization during cycling. Specifically, the Bi2S3/Bi2O2S-60 electrode delivers outstanding specific capacities of 1076.6 C g–1 at 1 A g–1 and maintains 730.3 C g–1 at 10 A g–1, demonstrating excellent rate capability. Notably, the composite exhibits significantly improved cycling stability (82.8% capacity retention after 10,000 cycles at 10 A g–1) compared to pure Bi2S3(67.4%) and Bi2O2S (73.6%). When configured as a hybrid supercapacitor (Bi2S3/Bi2O2S-60//AC), the device achieves an impressive energy density of 68.28 Wh kg–1 (810.73 W kg–1) with exceptional long-term stability (93.5% capacity retention after 10,000 cycles). The coherent interface studied in this paper brings a new perspective to the field of supercapacitors.
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Xing Dai,Lijie Duan,Chaozhong Wang,Feng Qian,Linghao Kong,Bohan Jia,Kongna Wu,Yonghui Song
Bi 2 O 2 S/BN heterojunction: carbamazepine (CBZ) photodegradation. • Built-in electric field promotes spatial charge separation and migration. • Dual •OH/O 2 •− channels selectively attack distinct reactive sites in CBZ. • Bi 2 O 2 S/BN removes 93.4% of CBZ with a 4.7-fold rate enhancement. • Catalyst remains robust in real waters and reduces overall toxicity. The persistent and ecotoxic pharmaceutical carbamazepine (CBZ) poses a significant threat to aquatic environments. Although semiconductor photocatalysis offers a green solution, its efficiency is often hindered by rapid charge recombination and limited light absorption. In this study, we reported the rational design and construction of an S-scheme dibismuth oxysulfide/boron nitride (Bi 2 O 2 S/BN) heterojunction through intimate interfacial coupling between Bi 2 O 2 S and BN. This strategic integration induced strong interfacial electron coupling, resulting in a built-in electric field that regulated interfacial band bending and facilitated spatial charge separation of photogenerated electron-hole pairs, as unequivocally validated by experimental characterizations and density functional theory (DFT) calculations. The optimized Bi 2 O 2 S/BN heterojunction achieved 93.4% ± 0.1% CBZ removal within 120 min, with an apparent rate constant of 0.0155 ± 0.0001 min −1 , representing a 4.7-fold enhancement over pristine Bi 2 O 2 S. Notably, beyond conventional activity improvement, this system established spatially partitioned redox sites via work-function-driven charge redistribution, enabling a dual-channel oxidative pathway that selectively targeted distinct electrophilic and nucleophilic sites of the CBZ molecule. This molecular-level reaction matching distinguished the proposed system from previously reported CBZ photocatalysts, which primarily relied on indiscriminate reactive oxygen species (ROS) oxidation. This study reports a highly effective and stable photocatalyst for remediating persistent pollutants. Additionally, it provides mechanistic insights into interfacial charge regulation and charge-transfer dynamics in heterojunction systems, offering a valuable blueprint for designing advanced photocatalytic systems for practical environmental applications. Download: Download high-res image (404KB) Download: Download full-size image
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Chenda Wei,Shixin Huang,Wei Liu,Hailong Lin,Zhicheng Wen,Chunjin Hang,Rong An
Template-guided topotactic transformation builds an ordered 2D/1D Bi 2 O 2 S/Bi 2 S 3 . • Bi 2 O 2 S/Bi 2 S 3 exhibited excellent sensitivity and a fast response to NO under high humidity. • The sensing mechanism was systematically studied at atomic and electronic scales. • Exhaled NO monitoring potential was demonstrated under breath-relevant conditions. Exhaled nitric oxide (NO) is a clinically relevant noninvasive breath biomarker associated with asthma diagnosis and management, yet its reliable detection remains hindered by the high humidity of human breath. Here, we develop a humidity-enhanced sensing strategy through template-guided topotactic transformation. The resulting hierarchically ordered 2D/1D Bi 2 O 2 S/Bi 2 S 3 (BOS/BS) heterostructure features an open nanoarchitecture, facilitating rapid gas transport and exposing active sites. The optimized BOS/BS sensor delivers a response of 37 to 1 ppm NO at room temperature under 90% RH, with response/recovery times of 9/33 s and a detection limit of 25 ppb. The response is nearly 12 times that of the single-phase BS sensor and 4 times that of the less ordered BOS/BS sensor Rather than excluding moisture, the BOS/BS heterostructure integrates interfacial charge redistribution with humidity-induced surface hydroxylation to promote NO adsorption and conversion. This work establishes a topotactic route to hierarchically ordered heterostructures for room-temperature NO sensing under high humidity and offers a materials-design strategy for breath-relevant NO sensing under moisture-rich conditions. Download: Download high-res image (165KB) Download: Download full-size image
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Tingting Jiang,Siyu Huang,Yu Wang,Guanbo Wang,Wei Wang,Haifeng Zhang
Persulft-based advanced oxidation processes (PS-AOPs) are an efficient strategy to degrade refractory pollutants. Fabricating a highly efficient catalyst is the most pivotal factor in PS activation. This study designs a novel CoP 3 -anchored layered Bi 2 O 2 S through an interface engineering strategy, where the unique electronic structure and surface properties of Bi 2 O 2 S lead to dramatically reduced cobalt ion leaching compared with that of CoP 3 . It exhibited outstanding catalytic activity and achieved nearly complete removal (>99%) of 50 mg L −1 2,4-Dichlorophenol (2,4-DCP) within 30 min. Radical quenching experiments, EPR technique, electrochemical tests, and HPLC validated the coexistence of radical (•OH, SO 4 •− ) and non-radical ( 1 O 2 , electron transfer, high-valent metal species) pathways in the Light/Bi 2 O 2 S/CoP 3 /PMS system for 2,4-DCP degradation. Importantly, Bi 2 O 2 S/CoP 3 induced a pronounced photothermal effect that enhanced 2,4-DCP degradation efficiency. Furthermore, the attack sites of 2,4-DCP were precisely identified based on the Fukui index. Based on density functional theory calculation and high-performance liquid chromatography-mass spectrometry, the detailed degradation pathways were proposed. The toxicity of 2,4-DCP and its intermediate products were predicted by using the toxicity assessment software tool. Moreover, excellent reusability, real-water treatment efficacy (verified by 3D-EEM), high-efficiency removal of multiple pollutants, and wide pH adaptability (3−11) confirm practical potential for sewage treatment. This study provides insight into designing a highly efficient and green catalyst for simultaneous pollutant treatment.
研究领域:
环境催化
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材料科学
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水处理技术
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高级氧化过程
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纳米材料
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理论化学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）