ACTA PHYSICO-CHIMICA SINICA
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2024
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IF 10.8
Asif Hassan Raza,Shumail Farhan,Zhixian Yu,Yan Wu
This work illustrates the novelty of double S-scheme ZnS/ZnO/CdS ternary heterojunction photocatalyst with efficient photocatalytic activity. The sample with optimal CdS content, ZnS/ZnO/CdS-14% (ZZC14%), displayed the maximum H 2 evolution rate of 4.1 mmol·g ‒1 ·h ‒1 . The maximum photocatalytic performance was approximately 2 and 13 times higher than their corresponding counterparts, ZnS/CdS and ZnO/ZnS, respectively. A high AQE of 19.8% under 420 nm was obtained. Additionally, the slight changes in H 2 evolution activities and retentions of crystal structures after six successive cycles indicate the stability of the photocatalyst. In accordance with the theoretical calculations and experimental results, the remarkable enhancement in photocatalytic activity is attributed to fast electron transfer and separation as well as the intimate contact due to mutual interaction between S-scheme. This work highlights an innovative approach to constructing a dual S-scheme photocatalytic system with high separation and fast migration capabilities of photogenerated charge carriers for splitting water to produce hydrogen. Download: Download high-res image (131KB) Download: Download full-size image
研究领域:
材料科学
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能源科学
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环境科学
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DOI
高影响因子
International Journal of Peptide Research and Therapeutics
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2024
·Vol. 30
·期 5
·1-13
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IF 2
Liu Ziyang,Wei Yuping,Zhang Man,Zhu Xingyan,Liu Kun
Angiotensin-converting enzyme-2 (ACE2) is a important cell surface receptor of SARS-CoV-2 S protein. The initial stage of SARS-COV-2 cell infection involves the binding of the S protein to ACE2. Hence, this work presents an innovative strategy to designing ACE2-based peptide inhibitors by considering the surface property and morphology of the S protein RBD. The aim is to develop a short peptide inhibitor that can effectively inhibit S protein-ACE2 interaction Through computational analysis and molecular simulation, the surface properties and morphology of S protein receptor-binding structural domain (RBD) were investigated, while the key residues of ACE2 ligand-binding structural domain (LBD) were identified based on their contributions and non-covalent interactions. Then, peptide inhibitors, consisting of ACE2 key residues, were developed by fitting to the surface characteristics and topographical features of the S protein RBD. Molecular simulation showed that two novel short peptides, IEPFF (I5) and WIEPFF (W6) had high affinity for S protein RBD but a low affinity for the cell membrane. Cellular adsorption studies demonstrated that both I5 and W6 effectively blocked ACE2-S protein binding without significant cytotoxicity. Flow cytometry analysis revealed that both I5 and W6 effectively inhibited S protein binding to the ACE2, resulting in a significant reduction (75 and 79%, respectively) in fluorescence intensity after 30 min of incubation at a concentration of 200 μM. Both I5 and W6 were excellent potential anti SARS-COV-2 drugs. This work provides an innovative perspective for the development of functional peptides for the prevention and management of SARS-COV-2.
研究领域:
生物化学
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分子生物学
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病毒学
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药学
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计算生物学
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DOI
高影响因子
CHEMICAL PHYSICS LETTERS
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2025
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IF 3.1
Qingqing Yang,Chaosheng Yuan,Yongfu Liang,Xiang Zhu,Zheng Wang,Xuerui Cheng,Lei Su
The high-pressure behaviors of 1,3,5-triazine ( s -triazine) was investigated under static and dynamic compression to elucidate the effects of compression rate on its phase transitions and chemical reactions. Static compression experiments revealed that s -triazine underwent a phase transition from phase I to phase II at 0.69 GPa and initiated chemical reactions above 10.84 GPa. Dynamic compression, however, resulted in a more chemically stable overpressure phase II’, which maintained its structure up to 17.32 GPa. The distinct responses to compression rates suggest that dynamic compression induces metastable structures of s -triazine that consume energy, preventing chemical reactions below the energy threshold. This study highlights the importance of compression rate in determining the chemical and physical properties of s -triazine under high pressure.
研究领域:
高压物理
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材料科学
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化学反应动力学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Yanze Wang,Zhenyu Liu,Wenxuan Wang,Junxiao Tang,Rongjie Wang,Jingjing Xie,Zhengyi Fu
Accelerating charge transport and avoiding recombination are promising strategies for establishing highly efficient artificial photosystems. Herein, an S-scheme heterostructure consisting of Zn x Cd 1− x S and TiO 2 is fabricated via the in situ crystal growth method. The refined structure significantly enhances the transport of photogenerated charges, thereby improving photocatalytic hydrogen production efficiency. The optimized TiO 2 −Zn x Cd 1− x S composite, incorporating 60% TiO 2 with Zn 0.4 Cd 0.6 S, exhibits a robust H 2 evolution rate of 50.96 mmol g −1 h −1 with continuous release of H 2 bubbles. It is worth noting that the hydrogen production rate in seawater is as high as 26.22 mmol g −1 h −1 . The strong interfacial interaction and staggered band alignment between TiO 2 and Zn x Cd 1− x S result in the formation of a built-in electric field and high-content oxygen vacancies, which can drive the directional migration of photoelectrons with high redox ability and high speed. The designed photocatalyst with S-scheme and rich Oxygen vacancies at the interface provides a new approach for fabricating high-efficiency photocatalysts.
研究领域:
材料科学
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能源科学
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DOI
高影响因子
PEST MANAGEMENT SCIENCE
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2023
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IF 4.1
Hao-Lan Yang,Jia-Min Yu,Fu Cao,Wu-Ye Li,Bin Li,Xiao Lei,Shi-Guang Li,Su Liu,Mao-Ye Li
BACKGROUND Chlorantraniliprole (CAP) is a diamide insecticide with high efficacy against many pest insects, including the black cutworm, Agrotis ipsilon . Agrotis ipsilon is a serious pest causing significant yield losses in crops. Glutathione- S -transferases (GSTs) belong to a family of metabolic enzymes that can detoxify a wide range of pesticides. However, little is known about the functions of GSTs in CAP tolerance in A. ipsilon . RESULTS A cDNA sequence (designated AiGSTu1 ) encoding an unclassified GST was identified from A. ipsilon . AiGSTu1 is highly expressed during the 3 rd -instar larval and the pupal stages. Most of the mRNA transcripts were found in larval Malpighian tubules. Exposure to CAP strongly enhanced AiGSTu1 expression, GST activity, hydrogen peroxide (H 2 O 2 ) and malondialdehyde levels in larvae. H 2 O 2 treatment upregulated the transcription level of AiGSTu1 , suggesting that CAP-induced oxidative stress may activate AiGSTu1 expression. The activity of recombinant AiGSTu1 was inhibited by CAP in a dose-dependent manner. Metabolism assay results demonstrated that AiGSTu1 is capable of depleting CAP. Overexpression of AiGSTu1 enhanced the tolerance of Escherichia coli cells to H 2 O 2 and the oxidative stress inducer, cumene hydroperoxide. Silencing of AiGSTu1 by RNA interference increased the susceptibility of A. ipsilon larvae to CAP. CONCLUSION The findings of this study provide valuable insights into the potential role of AiGSTu1 in CAP detoxification and will improve our understanding of CAP tolerance in A. ipsilon . © 2023 Society of Chemical Industry.
研究领域:
昆虫学
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分子生物学
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农药科学
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DOI
PubMed
高影响因子
Nano Research
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2021
·Vol. 15
·期 3
·1809-1816
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IF 8.897
Geng Shuo,Tian Fenyang,Li Menggang,Liu Yequn,Sheng Jie,Yang Weiwei,Yu Yongsheng,Hou Yanglong
The hydrogen evolution reaction (HER) of molybdenum disulfide (MoS 2 ) is limited in alkaline and acid solution because the active sites are on the finite edge with extended basal plane remaining inert. Herein, we activated the interfacial S sites by coupling with Ru nanoparticles on the inert basal plane of MoS 2 nanosheets. The density functional theory (DFT) calculation and experimental results show that the interfacial S electronic structure was modulated. And the results of Δ G H* demonstrate that the adsorption of H on the MoS 2 was also optimized. With the advantage of interfacial S sites activation, the Ru-MoS 2 needs only overpotential of 110 and 98 mV to achieve 10 mA·cm −2 in both 0.5 M H 2 SO 4 and 1 M KOH solution, respectively. This strategy paves a new way for activating the basal plane of other transition metal sulfide electrocatalysts for improving the HER performance.
研究领域:
材料科学
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电催化
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DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2024
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IF 4.1
Mingtao Wang,Shijie Wang,Zhenzi Li,Xuepeng Wang,Liping Guo,Haixia Liu,Lijun Liao,Wei Zhou
Photocatalysis is an alternative for antibiotics removal from wastewater for the sustainable development of human society. However, applying photocatalysts for antibiotics (e.g., tetracycline) degradation under practical conditions is highly restricted by the low reaction efficiency due to the prompt charge recombination. Constructing porous heterojunctions is an efficient way to regulate the electron transfer path and accelerate charge migration efficiency. Herein, TiO 2 /defective UiO-66 porous octahedral S-scheme heterojunctions are successfully fabricated through an in-situ growth strategy. The strong interaction and charge migration behavior between TiO 2 and defective UiO-66 have been studied using X-ray photoelectron spectroscopy and electron paramagnetic resonance measurements. The photocatalytic removal efficiency of tetracycline is notably improved by forming TiO 2 /defective UiO-66 porous heterojunctions. The promoted photocatalytic performance can be ascribed to the strong interaction between TiO 2 and defective UiO-66, and the accelerated charge separation and transfer efficiency due to the formation of S-scheme heterojunctions, thus generating abundant reactive oxygen species, including O 2 − and OH. The optimized 38-TiO 2 /UiO-66-300 can eliminate 97.9 % of tetracycline in 60 min with a reaction constant rate of 0.0425 min −1 , which is approximately 4 and 10 times that of pristine TiO 2 and UiO-66-300, respectively. This work provides an alternate strategy for preparing highly active heterojunction photocatalysts for environmental applications.
研究领域:
环境科学
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材料科学
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光催化技术
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产品关联
DOI
高影响因子
CHEMISTRY OF MATERIALS
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2024
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IF 7.2
Yan Guo,Bin-Wen Liu,Chao-Hong Xie,Wen-Fa Chen,Ming-Xin Li,Xiao-Ming Jiang,Guo-Cong Guo
Rare-earth infrared nonlinear optical (IR NLO) compounds have garnered significant attention due to their abundant electronic structures. However, their NLO efficiency has been relatively modest, attributed to the localization of valence electron shells in rare-earth metals. Traditional design strategies for IR NLO materials have predominantly focused on MQ4 (M = metal, Q = S or Se) tetrahedra, with limited exploration of MQ6 octahedra. We introduce a novel approach to enhance NLO effects by incorporating distorted mixed anionic octahedral M(S/X)6 groups. To illustrate this strategy, we undertake structure modification and optimization of IR NLO performance using the Y–Ga–Ge–S system as an example. The synthesis of a new rare-earth chalcogenide, Y6Ga2GeS14 (1), serves as a foundation. Further halogen atom substitution yields Y6Ga4.2S13.6Cl3.4 (2), Y6Ga2.83Ge2S16.75Cl (3), and Y6Ga2.83Ge2S16.5Br1.5 (4). All compounds demonstrate remarkable NLO performance, including moderate NLO coefficients (0.17–0.70 × AgGaS2), large laser-induced damage thresholds (LIDTs) (3.78–6.19 × AgGaS2), and a broader transmission range (0.5–14.9 μm). The incremental enhancement of NLO efficiency in compounds 1–4 can be attributed to symmetry breaking induced by halogen atom substitution and increased distortion of the octahedral M(S/X)6 motifs in their structures, validating the effectiveness of our strategy. Notably, this strategy concurrently increases the band gap and LIDT, overcoming the NLO–LIDT incompatibility, being strikingly different from other reported approaches. This work provides new insights into optimizing the NLO performance of rare-earth IR NLO compounds through the modulation of octahedral motifs.
研究领域:
材料科学
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光学
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化学
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物理学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
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IF 8.1
Adil Raza,Azhar Ali Haidry,Zhengjun Yao,Talha Amin,Muhammad Ahsan,Razan A. Alshgari,Saikh Mohammad
It is shown that replacing non-noble metals with noble metals in photocatalytic water splitting is pivotal for increased and sustained hydrogen production. However, the challenge persists in designing and developing a cost-effective, highly active catalyst with effective carrier separation and providing sufficient H + reduction sites to enhance photocatalytic H 2 evolution efficiency. Herein, a series of S-scheme Cu 2 ZnSnS 4 /g-C 3 N 4 (CZTS/CN) heterojunction composites were prepared via the hydrothermal method, followed by comprehensive characterizations for in-depth investigation. The TEM image exhibits a clear interface, showing the heterojunction formation between CZTS and CN nanosheets. The results show that incorporating CZTS cocatalyst significantly improves CN photocatalytic hydrogen evolution reaction (HER) and its performance is notably influenced by CZTS to CN mass ratio. Among CZTS/CN heterojunction composites, the 5% CZTS/CN heterojunction composite exhibited a significantly improved HER of 243.64 μmol g −1 h −1 , which is 29.4 and 7.08 folds superior as compared to CN (8.29 μmol g −1 h −1 ) and CZTS (34.42 μmol g −1 h −1 ), respectively. The mechanism study revealed that the excellent superior H 2 evolution performance resulted from the established internal electric field (IEF) in p-n heterojunction, which expedites the efficient separation and migration of photoinduced carriers coupled with the distinctive flower-like configuration of CZTS offering a substantial surface area and enough active reduction sites for photocatalysis process. This work presents a rational design and an inexpensive and efficient heterojunction photocatalysis system suitable for diverse applications.
研究领域:
材料科学
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能源化学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Ya-Nan Wang,Yaxin Guo,Jinsong Peng,Jianwei Zhao,Lei Yang,Haiyan Song,Chunxia Chen
s Photocatalytic H 2 O 2 production represents a sustainable and promising avenue for energy and environment. Photoproduction of H 2 O 2 in seawater is potentially an alternative to meet the needs of H 2 O 2 utilization in ocean, while with challenges of competitive ions influence and unsolved photocatalytic mechanism. Herein, we constructed a S-scheme heterojunction with the lamellated WO 3 coated CdS semiconductors for photoproduction of H 2 O 2 in actual seawater. Fragmented WO 3 uniformly spread on surface of dispersed CdS spheres by two steps including calcination and ultrasound. Photocatalyst achieved considerable 1.00 mmol·g cat −1 ·h −1 of H 2 O 2 productivity in seawater without electron-proton donors and pure O 2 , 9.3 % of apparent quantum yield (AQY), as well as good reusability. A co-catalysis concept was proposed to explore specific role of ions in seawater on H 2 O 2 photoproduction. S-scheme heterojunction contributed to migration of electrons and holes on interface between WO 3 and CdS, and further promoted separation of photocarriers, and further opened another channel for H 2 O 2 generation. Accumulated electrons in conduction band (CB) of CdS involved in the main route of two-electron reduction of O 2 for H 2 O 2 production, also promoted generation of •O 2 - for opening the auxiliary route. WO 3 /CdS heterojunction provided fundamentals and opportunities for H 2 O 2 production and applications in abundant seawater as a sustainable way.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
BIORESOURCE TECHNOLOGY
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2024
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IF 9.7
Mingdong Chang,Ji-Hang Jiang,Jianqiao Wang,Ru Yin,Qiaoyu Li,NaNa Wang,Pengfei Xiao,Li-Wei Zhou,Tangfu Xiao
Bisphenol S (BPS) has attracted much attention as an emerging hazardous contaminant due to its endocrine disruption and oncogenic effects. Although white-rot fungi have remarkable bioremediation capabilities for some bisphenols, little is known about their performance in BPS degradation. In this study, the newly discovered Phlebia acerina S-LWZ20190614-6 exhibited high capacity to degrade BPS. To further explore the mechanism of BPS degradation by P. acerina S-LWZ20190614-6, the whole-genome background and degradation pathways were investigated. Five low-toxicity metabolites were detected during the BPS biodegradation process, and a strong correlation was found between this biodegradation process and the interactions between BPS and ligninolytic enzymes. Moreover, transcriptomic analysis revealed that genes related to DNA replication and repair, ABC transporters, and fatty acid metabolism were involved in this BPS degradation process. Overall, this study provides insights into the achievement of BPS biodegradation by white-rot fungi.
研究领域:
环境科学
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微生物学
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分子生物学
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产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Huiling Tang,Hengchao E,Chunxia Yao,Xuesheng Wang,Jiaxin Zhou,Wei Song,Zhijie Zhang
Exploring efficient photocatalysts holds significant importance for the prevention and treatment of antibiotic pollution. This research reports a 2D/2D CeO 2 /BiOCl S-scheme photocatalyst constructed by mesoporous CeO 2 and BiOCl nanosheets (NSs). Efficient charge separation and transfer was achieved by the synergistic effect of large-area contact and S-scheme charge transfer mechanism, which significantly enhanced the photocatalytic performance of CeO 2 /BiOCl. Experimental results demonstrated that the CeO 2 /BiOCl photocatalyst displayed superior photocatalytic activity to the individual components, which could efficiently eliminate four types of antibiotics, namely tetracycline (TC), chlortetracycline (CTC), doxycycline (DOC), and oxytetracycline (OTC) under UV light irradiation. Particularly, the sample of 0.4CeO 2 /BiOCl exhibited the highest catalytic efficiency, with a TC degradation rate constant of 0.01524 min −1 , which was 1.85 and 22.74 times higher than that of single CeO 2 and BiOCl, respectively. Moreover, liquid chromatograph-mass spectrometer (LC-MS) analysis is employed to reveal the degradation pathways of TC. This work offers an insightful idea for the fabrication of novel S-scheme photocatalysts applied in environmental purification.
研究领域:
环境科学
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材料科学
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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）