JOURNAL OF ALLOYS AND COMPOUNDS
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2024
·
IF 5.8
Bing Wang,Yao Liu,Zhuo Li,Hong Hao,YuZhen Zhao,ZeMin He,WenQi Song,EnZhou Liu,Bo Zhou,XiaoXun Ma,Zongcheng Miao
Leveraging the synergistic combination of dipole modulation and localized surface plasmon resonance effects (LSPR) effects offers a promising solution to address the low carrier separation efficiency observed at traditional Type-III heterojunction interfaces. Herein, a derivative of SubPc-4 with a high dipole moment of 7.25 Debye was successfully synthesized by introducing carbonyl functional groups axially into the parent subphthalocyanine. Silver metal was introduced during the preparation of Ag 3 PO 4 through light irradiation, and the organic supramolecule SubPc-4 self-assembled on the Ag 3 PO 4 semiconductor surface via van der Waals forces and π-π stacking interactions, forming a binary heterojunction SubPc-4/Ag 3 PO 4 with LSPR effects. Under 30 minutes of visible light irradiation, the degradation efficiencies of tetracycline and oxytetracycline by the SubPc-4/Ag 3 PO 4 supramolecular nanoarray were 88.29% and 90.20%, respectively. DFT and TDDFT calculations, combined with experimental characterization data, indicate that the LSPR supramolecular array exhibits excellent activity and stability, primarily attributed to the improved carrier separation capability at the SubPc-4/Ag 3 PO 4 interface. This work highlights the potential of combining dipole modulation and LSPR technology to enhance the performance of Type-III heterojunction photocatalysts.
研究领域:
材料科学
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环境科学
·
化学
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DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·
IF 5.7
Xiaoying Yu,Tianfang Zheng,Yuanlin Li,Yanxiang Liu,Ping Guo,Hai-Hua Wang,Shin-ichi Sasaki,Xiao-Feng Wang
The production of hydrogen fuel by solar-driven photocatalytic water splitting is an attractive solution to overcome the environmental and energy problems with traditional fossil fuels. The strategies to improve the capacity of photocatalytic hydrogen production include enhancing the light absorption of materials and using co-catalysts to reduce the efficiency of electron–hole recombination. Here, we report a Schottky heterojunction photocatalyst composed of subphthalocyanine (SubPc) and Ti3C2Tx MXene, which can effectively separate photogenerated charges. The outstanding ability of SubPc to absorb visible light and the ability of Ti3C2Tx MXene to capture photogenerated electrons were applied to improve the photocatalytic hydrogen-production performance of the SubPc/Ti3C2Tx composite. Two types of SubPcs (SubPc-Cl and SubPc-OPh) were hybridized with Ti3C2Tx MXene nanosheets. The hydrogen evolution of SubPc/Ti3C2Tx with different mass ratios was experimentally investigated, and it was found that the optimized SubPc-Cl/Ti3C2Tx exhibited the best H2-production rate of 105 μmol g−1 h−1. Our findings provide a new design approach and promising strategy to develop low-cost photocatalysts for future solar-driven sustainable energy-conversion systems.
研究领域:
材料科学
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能源转换
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光化学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Bing Wang,XuXia Zhang,RuiQing Zhang,Zhuo Li,Bin Tian,HaiXia Ma,Zheng Zheng,Bo Zhou,MengTing Ji,ChuanHui Shi,Hong Hao
Developing a simple, low-cost, high-yield, and controllable strategy for preparing various functionalized MoS 2 -based composite materials remains a challenge. This study innovatively utilizes boron subphthalocyanine bromide (SubPc-Br) as a photosensitizer, which self-assembles on MoS 2 via intermolecular π-π stacking, creating a SubPc-Br/MoS 2 organic–inorganic semiconductor system. This addresses a research gap, employing subphthalocyanines as MoS 2 sensitizers. The SubPc-Br/MoS 2 heterojunction exhibited excellent photocatalytic activity for the degradation of antibiotics in water under solar irradiation. The rate constants for the photocatalytic degradation of CTC and CIP by SubPc-Br/MoS 2 were 4.66 and 5.93 times higher than those of pristine MoS 2 , respectively. The significant improvement in photocatalytic performance is attributed to the efficient charge separation and transfer induced by the unique S-Scheme charge transfer mechanism, which has been verified by different theoretical and experimental results. We demonstrate that the photochemical activity of O 2 molecules adsorbed on MoS 2 (1 0 0) is site-sensitive, with O 2 preferentially adsorbing on the Mid-site location with higher electron transport capability. This study provides a new perspective for enhancing photocatalytic performance by constructing an artificial photosynthetic system with an S-scheme heterojunction.
研究领域:
材料科学
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环境科学
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光催化
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2024
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IF 11.2
Shengqian Liang,Min Ma,Zheng Zheng,Jiahang Song,Yijian Zhou,Enzhou Liu,Haixia Ma,Bing Wang,Bo Zhou,Yan Nie,Zhuo Li
For the efficient harnessing of solar energy and mitigation of environmental pollution, the development and application of semiconductor photocatalysis technology is paramount. Herein, a novel SubPc-Br/CdS supramolecular array with an S-scheme heterojunction was synthesized through the intermolecular π-stacked self-assembly of subphthalocyanine (SubPc-Br) and nanometer cadmium sulfide (CdS). This self-assembly system features a highly structured architecture and excellent stability. Experiments and ground-state differential charge calculations demonstrate that SubPc-Br and CdS form a built-in electric field during the self-assembly process, a critical factor in promoting the dissociation of electrons and holes. Additionally, this study utilized time-dependent density functional theory (TDDFT) to simulate the dynamic adsorption behavior of excited oxygen molecules on the SubPc-Br/CdS interface for the first time. The analysis of molecular charge differential density under different excited states proved that the addition of SubPc-Br molecules not only improves the photocorrosion resistance of CdS in an O 2 adsorption environment but also enhances the production of advanced reactive oxygen species under the synergistic action of h + and ·O 2 – . When subjected to visible light, the degradation efficiency of minocycline (MC) achieved 96.8 % within 60 min and maintained 80.3 % after 5 cycles. In summary, this study highlights the feasibility of creating advanced S-scheme heterojunction photocatalysts through the strategic incorporation of organic supramolecules with semiconductor catalysts.
研究领域:
材料科学
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环境科学
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光催化技术
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DOI
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 21
·16799
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IF 4.6
Yijian Zhou,Mengting Ji,Shengqian Liang,Jiahang Song,Haotian Wu,Enzhou Liu,Bing Wang,Chen Wang,Bo Zhou,Zhuo Li
Constructing S-scheme heterojunctions is an effective strategy to enhance charge separation efficiency. In this study, for the first time, boron subphthalocyanine bromide (SubPc-Br) was formed by self-assembly on the surface of layer BiOI to form an S-scheme heterojunction (SubPc-Br/BiOI) through halogen bonding and π–π stacking interactions. Experimental results demonstrate that the SubPc-Br/BiOI composite enhances tetracycline removal efficiency by a factor of 1.6 compared to pure BiOI. Notably, after five cycles, the composite still maintains a high tetracycline removal rate, which is 2.62 times that of pure BiOI. DFT and TDDFT theoretical calculations, combined with synchrotron X-ray photoelectron spectroscopy (XPS) under simultaneous illumination, indicate that the internal electric field generated between the [Bi 2 O 2 ] layer and the SubPc-Br macrocycle plays a dominant role in charge separation, while interfacial electron transfer contributes to the constitution of the S-scheme heterojunction. Moreover, the combination of molecular dynamics simulations (MD), Fukui function calculations, and HPLC-MS detection reveals the mechanism of pollutant degradation. This study introduces an innovative strategy for the construction of BiOI-based S-scheme heterojunctions. Constructing S-scheme heterojunctions is an effective strategy to enhance charge separation efficiency.
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DOI
PubMed
高影响因子
Small
·
2023
·Vol. 20
·期 7
·2306820
·
IF 13.3
Zheng Zheng,Bing Wang,Zhuo Li,Hong Hao,ChaoYang Wei,WenYu Luo,LinYu Jiao,Sheng Zhang,Bo Zhou,XiaoXun Ma
Constructing heterojunction of supramolecular arrays self-assembled on metal–organic frameworks (MOFs) with elaborate charge transfer mechanisms is a promising strategy for the photocatalytic oxidation of organic pollutants. Herein, H 12 SubPcB–Br (SubPc–Br) and UiO-66 are used to obtain the step-scheme (S-scheme) heterojunction SubPc–Br/UiO-66 for the first time, which is then applied in the photocatalytic oxidation of minocycline. Atomic-level B–O–Zr charge-transfer channels and van der Waals force connections synergistically accelerated the charge transfer at the interface of the SubPc–Br/UiO-66 heterojunction, while the establishment of the B–O–Zr bonds also led to the directional transfer of charge from SubPc–Br to UiO-66. The synergy is the key to improving the photocatalytic activity and stability of SubPc–Br/UiO-66, which is also verified by various characterization methods and theoretical calculations. The minocycline degradation efficiency of supramolecular SubPc–Br/UiO-66 arrays reach 90.9% within 30 min under visible light irradiation. The molecular dynamics simulations indicate that B–O–Zr bonds and van der Waals force contribute significantly to the stability of the SubPc–Br/UiO-66 heterojunction. This work reveals an approach for the rational design of semiconducting MOF-based heterojunctions with improved properties.
研究领域:
材料科学
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化学工程
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环境科学
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光化学
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产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Zhuo Li,EnZhou Liu,Carlota Bozal-Ginesta,HaiXia Ma,HuiYong Chen,Bing Wang
The rational design of stable charge-transfer pathways remains a critical challenge in advancing S-scheme photocatalytic systems. Herein, we demonstrate a hydrogen-bond-engineered dual mortise-and-tenon supramolecular architecture using precisely tailored H 12 SubPcB-OCONapOH (SubPc-5) molecules, which synergistically enhance interfacial carrier dynamics and structural robustness. The SubPc-5/TiO 2 heterojunction, constructed through π-π-directed self-assembly, achieves exceptional photocatalytic degradation of oxytetracycline (90%) and tetracycline (99%) within 180 minutes, outperforming pristine TiO 2 by 3–4.5-fold in reaction kinetics. Multimodal mechanistic investigations, including in situ light-irradiated Kelvin probe analysis, synchronous irradiation X-ray photoelectron spectroscopy (SI-XPS), and density functional theory (DFT) calculations, unambiguously verify the S-scheme charge transfer between TiO 2 and SubPc-5. Theoretical investigations reveal that O 2 molecules adsorbed at the O-site on the TiO 2 (101) surface more efficiently capture photogenerated electrons compared to the Ti-site. This work pioneers a supramolecular engineering strategy for constructing mechanically stable and electronically efficient photocatalytic systems, highlighting the transformative potential of mortise-and-tenon nanostructures in environmental remediation applications.
研究领域:
光催化
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超分子化学
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材料科学
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环境科学
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纳米技术
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物理化学
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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）