NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Jia Tang,Yuanwen Hou,Yuetian Yang,Hongquan Fu,Juan Zhang,Hejun Gao,Jinming Chang,Yunwen Liao
Hydrogen peroxide (H2O2) is a crucial industrial chemical with diverse applications, ranging from disinfection and bleaching to chemical synthesis and environmental remediation. However, conventional H2O2 production methods, such as the anthraquinone oxidation process, face significant challenges, including high energy consumption, environmental concerns, and reliance on hazardous chemicals. To address these issues, there is a growing need for the development of stable, green, and efficient production technologies. Piezoelectric catalysis has emerged as a cutting-edge solution, leveraging piezoelectric materials to convert mechanical energy into chemical energy. This process facilitates the charge separation necessary for redox reactions, offering a promising pathway for the clean and sustainable production of H2O2. In this study, S-type ZnO/Ag2O heterojunctions were synthesized using a precipitation method. This heterojunction demonstrated exceptional catalytic performance, achieving an impressive H2O2 production rate of 346.9 μmol g−1 h−1, surpassing many existing catalysts. A key breakthrough of this research lies in the dual reaction pathway mechanism of H2O2 production. Unlike traditional methods that rely on a single reaction pathway, the ZnO/Ag2O catalyst enables simultaneous H2O2 generation through both the water oxidation reaction (WOR) and the oxygen reduction reaction (ORR). This dual reaction pathway approach significantly enhances the overall yield. This study not only highlights the potential of piezoelectric catalysis as a high-performance method for H2O2 synthesis but also paves the way for further advancements in clean and sustainable chemical production.
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CHINESE JOURNAL OF CATALYSIS
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2025
·
IF 17.7
Yating Ai,Sónia A.C. Carabineiro,Xianqiang Xiong,Huayue Zhu,Qi Wang,Bo Weng,Min-Quan Yang
Emerging contaminants in water sources present serious environmental and health risks, creating an urgent need for efficient and reliable treatment strategies. Photocatalytic advanced oxidation processes (AOPs) provide rapid reaction rates and strong oxidation capabilities, however, comprehensive evaluations of wastewater treatment, including degradation pathways, toxicity assessments and mechanistic insights, remain underexplored in the literature. This study presents novel S-scheme Mn 0.5 Cd 0.5 S/In 2 S 3 (MCS/IS) photocatalysts for efficient degradation of antibiotic pollutants, with a particular focus on tetracycline hydrochloride (TCH). The optimized MCS/IS photocatalyst demonstrates exceptional degradation efficiency and robust resistance to inorganic anions. Additionally, a continuous-flow wastewater treatment system, using an MCS/IS membrane, demonstrates outstanding stability in TCH photodegradation. Utilizing response surface methodology and Fukui function analysis, the effects of various parameters on photocatalytic degradation rates, along with the associated pathways and intermediate products, have been thoroughly investigated. Toxicity assessments confirm the environmental safety of the treated effluents. Mechanistic studies show that the S-scheme heterojunction in the MCS/IS photocatalyst improves electron-hole separation, thereby enhancing photocatalytic performance. It is expected that this study will serve as a model for advancing the removal of emerging contaminants, further enhancing photocatalytic AOPs as sustainable water purification technologies.
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Journal of Materials Chemistry A
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2025
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IF 9.5
Lele Wang,Weiran Wu,Wenpeng Zhang,Xinlei Ren,Xuan Liu,Wing-Kei Ho,Jie Hu,Min Zhou
Photocatalytic hydrogen peroxide (H2O2) production using resorcinol-formaldehyde (RF) resin offers a sustainable strategy, but its efficiency is limited by high exciton binding energy, suppressing free charge carriers generation. Herein, an S-scheme heterojunction composed of RF and MgIn2S4 (RF/MIS) was constructed to minimize exciton binding energy by modulating charge transfer pathways. The well-designed S-scheme charge transfer mechanism facilitates photoexcited carrier separation, strengthening redox capability driven by the interfacial electric field. In situ irradiation X-ray photoelectron spectroscopy, temperature-dependent photoluminescence, and photoelectrochemical measurements reveal that the reduced exciton binding energy leads to enhanced oxygen reduction efficiency. The optimized RF/MIS achieves significant H2O2 production rates of 892.6 μmol·L-1·h-1 under full-spectrum (320-780 nm), specifically producing 18.2 μmol·L-1·h-1 of H2O2 under 730 nm irradiation, along with superior stability in consecutive recycling tests. The two-electron reduction mechanism is evidenced by electron paramagnetic resonance spectroscopy and rotating ring-disk electrode analysis. These findings establish fundamental connections between heterointerface-trapped exciton dynamics and photocatalytic efficiency, providing new directions for designing high-performance organic semiconductors.
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Journal of Water Process Engineering
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2025
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IF 6.7
Jin Chen,Ke Li,Jie Yan,Suqing Qin,Yuzhao Ma,Xiaofeng Yang,Yanjun Li
Designing heterojunction photocatalysts with staggered band structures and optimal interfacial interactions constitutes a feasible strategy to achieve superior photocatalytic performance. Herein, we synthesized a Pt@BiOBr/g-C 3 N 4 S-scheme heterojunction via in-situ construction and photochemical deposition. Notably, Platinum nanoparticles (NPs), precisely deposited via photochemical reduction, extend light absorption into the visible-NIR spectrum through localized surface plasmon resonance (SPR) while acting as electron mediators to suppress recombination. Under simulated solar irradiation, the optimized Pt@BiOBr/g-C 3 N 4 S-scheme heterojunction demonstrates complete degradation of tetracycline hydrochloride (TC-HCl) within 10 min. Additionally, the photocatalyst showed exceptional degradation efficiency for organic dyes including methyl orange (MO) and rhodamine B (RhB). More importantly, the synergistic interplay between internal electric field (IEF) and the SPR of Pt nanoparticles collectively facilitates rapid charge separation while suppressing electron-hole recombination. This study offers a path toward highly effective photocatalysts engineered for practical applications and elucidates the activity enhancement mechanism through Pt incorporation in ternary heterojunction systems.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Ku-Ku Hao,Qi-Jin Wang,Sheng-Xiang Wei,Hua-Yang Si,Jing-Wen Hao,Nai-Fu Chen,Nai-Dong Chen,Xiao-Yan Gao,Si-Jie Liao,Shao-Jun Zheng,Man-Man Zhang
A neutral polysaccharide (NDHP-2-1) was isolated from Dendrobium huoshanense C. Z. Tang et S. J. Cheng ( D. huoshanense ). Structure characterization revealed that the weight-average molecular weight of NDHP-2-1 was 20.42 kDa, mainly composed of glucose (95.46 %) and mannose (4.54 %). The backbone of NDHP-2-1 consisted of →6)-α-D-Glc p -(1→, →4)-α-D-Glc p -(1→, and →3,4)-α-D-Glc p -(1→. The T-α-D-Glc p was regarded as the branches attached to the O-4 position of →3,4)-α-D-Glc p -(1 → in the backbone. In vitro experiments indicated that NDHP-2-1 exhibited excellent anti-inflammatory activity. The RAW264.7 cell assay results showed that NDHP-2-1 effectively inhibited the release of pro-inflammatory cytokines, including interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), interleukin-10 (IL-10) from LPS-stimulated macrophages. In general, the newly isolated polysaccharide of NDHP-2-1 exhibited significant anti-inflammatory and immunomodulatory properties, suggesting its potential as an effective natural therapeutic agent for managing inflammatory diseases.
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PubMed
高影响因子
ChemSusChem
·
2024
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IF 7.5
Qiuping Zhou,Xinyuan Jiang,Xuecheng Zhang,Dawei Wang,Guang Yang,He Zhou,Yuchao Wu,Fang Guo,Ming Chen,Guowang Diao,Lubin Ni
Graphical A Polyoxomolybdate-based metal-organic framework-derived Cu-embedded molybdenum dioxide hybrid nanoparticles was first applied as sulfur host in aluminum-sulfur batteries to resolve remaining critical challenge of polysulfide shuttle effect. The pouch cell with Cu/MoO 2 @C cathode cycled at 100 mA g −1 exhibits an initial discharge capacity of 150 mAh g −1 and maintains 100 cycles. High-performance rechargeable aluminum-sulfur batteries (RASB) have great potential for various applications owing to their high theoretical capacity, abundant sulfur resources, and good safety. Nevertheless, the practical application of RASB still faces several challenges, including the polysulfide shuttle phenomenon and low sulfur utilization efficiency. Here, we first developed a synergistic copper heterogeneous metal oxide MoO 2 derived from polymolybdate-based metal-organic framework as an efficient catalyst for mitigating polysulfide diffusion. This composite enhances sulfur utilization and electrical conductivity of the cathode. DFT calculations and experimental results reveal the catalyst Cu/MoO 2 @C not only effectively anchors aluminum polysulfides (AlPSs) to mitigate the shuttle effect, but also significantly promotes the catalytic conversion of AlPSs on the sulfur cathode side during charging and discharging. The unique nanostructure contains abundant electrocatalytic active sites of oxide nanoparticles and Cu clusters, resulting in excellent electrochemical performance. Consequently, the established RASB exhibits an initial capacity of 875 mAh g −1 at 500 mA g −1 and maintains a capacity of 967 mAh g −1 even at a high temperature of 50 °C.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 4
·1-13
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IF 5.3
Zhou Mengyan,Zhang Zhihui,Zheng Qi,Yu Mingdi,Si Mengxu,Wu Sirui,Zhang Yanan,Ding Shushu,Fu Ding-Yi
A novel ratiometric fluorescent nanohybrid probe was constructed for sensitive and selective determination of folic acid (FA) based on blue D-penicillamine-based carbon dots (CDs) and red glutathione S-transferase-Au nanoclusters (GST-AuNCs). Upon the excitation of 380 nm, the obtained CDs-NCs possessed two distinct emission peaks at 465 and 665 nm. The fluorescence intensity at 465 nm was incrementally enhanced with the addition of FA attributed to the hydrogen bonds formation, while the fluorescence intensity at 665 nm was quenched caused by the electronic interaction and the inner filter effects. The fluorescence intensity ratio ( I 465 /I 665 ) exhibited good linear correlation with FA concentrations in the range 10∼90 μM, and the limit of detection (LOD) was 0.63 μM. Notably, the corresponding fluorescent color changed from red to blue, which could be distinguished by naked eyes. On account of the excellent biocompatibility, the CDs-NCs were further successfully used for bioimaging and intracellular FA detection. Furthermore, the real sample analyses confirmed that the proposed nanoprobe could be expanded as a versatile platform for FA detection in practical applications. Graphical abstract
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2025
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IF 14.3
Mian Wei,Xin Zhou,Chang Cheng,Jianjun Zhang,Chuanjia Jiang,Bei Cheng
Graphitic carbon nitride is flourishing in photocatalytic hydrogen production. However, the performance of traditional carbon nitride materials is limited by their scarcity of surface reactive sites and fast recombination of photogenerated electron-hole pairs. Herein, we introduce a simple ultrasonic synthesis method that exfoliates bulk carbon nitride into nanosheets while simultaneously forming S-scheme heterojunctions with in-situ grown thiophene-based polymer through π–π interactions. The obtained carbon nitride nanosheet/polymer S-scheme heterojunction possesses abundant surface active sites and exhibits suppressed recombination of photogenerated electron-hole pairs, resulting in a hydrogen production rate approximately double that of bulk carbon nitride and a superior apparent quantum yield of 5.00%. The S-scheme charge transfer mechanism was proven by in-situ irradiated X-ray photoelectron spectroscopy, and time-resolved femtosecond-transient absorption analysis clarified the charge separation and transfer dynamics. This study demonstrates that combining organic semiconductors and hypercrosslinked polymers is a promising strategy for designing highly efficient S-scheme heterojunction photocatalysts.
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eScience
·
2025
·
IF 36.6
Lijing Wang,Chang Wu,Yu Gao,Hongfang Du,Shailendra K. Sharma,Aaron T. Marshall,Yang Liu,Yi Zhao,Shixue Dou,Liang Huang,Shaowei Zhang,Chao Wu,Liangxu Lin
The catalytic conversion of polysulfides remains a critical bottleneck in the development of high-performance lithium–sulfur batteries (LSBs). Despite extensive efforts to engineer carbon-based materials for LSBs, such as nitrogen (N)-doped graphene, the intrinsic limitations of conventional N-doped configurations have hindered catalytic effectiveness. Here, we reveal how the curvature-rich structure of N-doped graphene (N-CR-G) regulates catalytic properties to promote the sulfur reduction reaction (SRR). This architecture induces a diversity of active N configurations and optimizes the local electronic structure, directly accelerating the polysulfide redox kinetics. Unlike conventional carbon-based materials, the main N-doped configuration of N-CR-G catalyzes an uncommon asymmetric reaction pathway involving the rapid generation of soluble radicals, effectively suppressing the accumulation of insoluble Li 2 S 2 intermediates and enhancing sulfur utilization. While the curvature structure also facilitates carbon vacancy formation and enables room-temperature N doping, its primary contribution lies in tailoring the catalytic landscape of graphene. This work underscores the significance of curvature engineering for activating and regulating electrocatalytic behavior, offering a powerful strategy to design advanced cathode materials for highly promising LSBs.
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CHEMICAL ENGINEERING JOURNAL
·
2021
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IF 13.273
Bingyu Wang,Qiaoqiao Li,Ying Lv,Haibin Fu,Dingyi Liu,Yanfang Feng,Huifang Xie,Hongxia Qu
The CuFe 2 O 4 catalyst in advanced oxidation processes had received much attention, while the leaching metal ions and its agglomeration limited its application prospect. The conversion of waste activated sludge (WAS) into sludge-derived biochar (SBC) through pyrolysis could not only be the option of reducing the environmental burden but also converted to be the value-added environmental remediation materials. Hence, the present study prepared as a CuFe 2 O 4 /SBC heterogeneous catalyst to degrade new environmental pollutants (bisphenol S, BPS). To our best knowledge, CuFe 2 O 4 /SBC as a heterogeneous catalyst activating peroxydisulfate to degrade BPS in solution is rarely reported, and the catalytic performances and degradation mechanism of CuFe 2 O 4 /SBC need to be comprehensively investigated. The synergistic effect between CuFe 2 O 4 and SBC enhanced catalytic performances and alleviated agglomeration. The CuFe 2 O 4 /SBC was greatly ameliorated metal ions leaching, but the synthetic strategy could better optimize to further reducing Cu ion leaching. The dominant role of heterogeneous catalysis by CuFe 2 O 4 /SBC also have been elucidated. It was proposed that radical ( OH and SO 4 − ) and non-radical ( 1 O 2 ) oxidation processes worked together for BPS degradation, but surface-bound radical pathways played more crucial roles. Some intermediate products with higher toxicity may be produced due to the non-completely mineralized, thus future attention should be paid to their environmental risks. Hence, the detoxification efficiency of CuFe 2 O 4 /SBC needs to be further strengthened via improving the reaction conditions. Overall, this study provided a new strategy to simultaneously solve the problems of WAS disposal and leaching metal ions of CuFe 2 O 4 .
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Materials Express
·
2021
·Vol. 11
·期 7
·1038-1044
·
IF 0
Chai Hongyan,Wang Xueyong,Liu Zhimin,Zhao Yuehan
As a complex neurological disease, the treatment of Alzheimer’s disease (AD) is a global challenge. Compared with traditional drug therapy, a novel therapeutic tool, inorganic nanoparticles combined with photothermal therapy (PTT) can decompose amyloid β-protein (Aβ)
fibrils and inhibit Aβ aggregation, alleviating AD symptoms. In this study, MoS2@Au NPs composite nanoparticles were constructed by combining sulfhydryl-modified Au NPs and MoS2 nanosheets. In vitro experiments showed that the composite nanoparticles
could degrade insoluble Aβ fibers to soluble monomers and alleviate neurotoxicity. Additionally, the excellent biocompatibility and biosafety of MoS2@Au NPs reduced the damaging effects on nerve cells, and the AD model mice benefited from the treatment with MoS2@Au
NPs, which significantly improved their learning and cognitive abilities and thus reduced the disease. More importantly, MoS2@Au NPs combined with PTT effectively curbed the inflammatory response and slowed down the course of AD.
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Journal of Nanomaterials
·
2021
·
IF 2.986
Qilin Pan,Miaomiao Li,Mucang Xiao,Yulu He,Guangyu Sun,Ting Xue,Youhuan Luo,Li Chen,Baoquan Ai,Jianwen Xiong
Titanium dioxide nanoparticles (TiO2-NPs) are highly efficient photosensitizers in traditional photodynamic therapy (PDT). The particle size of TiO2-NPs is small, only about 20 nm. However, the demands of ultraviolet light (UV) excitation feature shallow tissue penetration depth and may lead to severe tissue photon damage. Thus, in this research, TiO2-NPs are modified with semiconductor quantum dots (QDs) CdX (X = S, Te, Se) in various methods, such as ultrasonic, hydrothermal, sol-gel, aqueous phase, and hydrolysis precipitation. The transmission electron microscopy (TEM) images show that the size of CdSe-TiO2 is ranging from 6 to 14 nm. The ultraviolet-visible (UV-Vis) spectrum demonstrates that the CdX (X = S, Te, Se) modification can successfully extend the absorption range of TiO2-NPs into a different visible light region. CdSe QDs have the narrowest band gap compared with CdX (X = S, Te, Se) QDs. Visible light-activated CdSe-TiO2 nanocomposite shows the highest PDT inactivation efficiency toward HL60 cells compared with CdX-TiO2. The photogenerated carrier separation efficiency of CdSe-TiO2 nanocomposite is the highest shown in a fluorescence spectrum (FS). Furthermore, when conjugated with folic acid (FA), the prepared FA-CdX-TiO2 (X = S, Se) exhibits excellent cancer-targeting ability during PDT treatment. Optimum PDT efficiency of FA-CdSe-TiO2 indicates that photocatalytic and targeting ability is much higher than pure TiO2 and CdSe-TiO2. Our results provided a detailed investigation on the PDT performance of CdX (X = S, Te, Se) modified TiO2 and may act as a guide for further design of highly targeted performance visible-light response TiO2-NPs.
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