WATER RESEARCH
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2025
·
IF 12.4
Lingyou Meng,Zhuo Li,Binhong Qu,Peng Li,Jianhui Sun,Yang Qu,Ziqing Zhang,Liqiang Jing
The ultrasensitive, visual and intelligent identification of persistent chlorophenols (CPs) in complex drinking and environmental water matrices is highly desirable. In this study, we have established an interesting colorimetric dye eosin Y (EY)-molecular imprinted Bi 4 O 5 Br 2 nanosheet photosensitization sensing system for CPs detection, in which the key is the rapid EY photosensitization decolorization to be efficiently inhibited in the presence of CPs. It displays an ultrasensitive detection of CPs, especially for the typical 2,4,6-trichlorophenol (TCP) across from 10 ng·L −1 to 1 mg·L −1 , achieving a limit of detection of 7 ng·L −1 with remarkable selectivity. By means of in-situ Fourier transform infrared spectroscopy, time-resolved laser flash photolysis spectroscopy, and theoretical calculations, the outstanding performance is attributed to (i) the efficient transfer of triplet excited state electrons from EY to the ultrathin Bi 4 O 5 Br 2 (∼4 nm) nanosheets through energy band alignment and (ii) enhanced TCP selective adsorption resulting from a planar adsorption configuration induced by multiple Bi–Cl interactions, along with specific molecular imprinting recognition sites. Additionally, a real-time intelligent sensing platform was further engineered by integrating automatic sampling, an optical fiber source and a smartphone with color recognition software, enabling convenient and visual detection of TCP in challenging water environments. The sensing system exhibited excellent performance in detecting TCP across various actual water matrices, achieving acceptable recovery rates ranging from 93.33% to 113.33% with the relative standard deviations between 0.80% and 11.31%. It also demonstrated significant advantages over the ultra-performance liquid chromatography-tandem mass spectrometry, particularly regarding speed, simplicity and sensitivity, thus indicating substantial potential for practical applications in water quality monitoring.
研究领域:
环境科学
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分析化学
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纳米技术
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材料科学
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传感器技术
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水污染检测
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PubMed
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2025
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IF 4.7
Hezheng Sun,Guoqing Liu,Yi Zhao,Jingcun Shao,Changhui Xin,Yanting Tang,Xin Yu
Bisphenol A is an environmental hormone that shows a significant impact on human health. The removal of bisphenol A substances from the surrounding environment is of great significance for the humanity sustainable development. Current work focuses on synthesizing self-doped Nb 3 O 7 (OH) nanostructure and eosin Y/Nb 3 O 7 (OH) composites with high surface areas through a solvothermal process for bisphenol A degradation under visible-light illumination. The prepared Nb 3 O 7 (OH) sample demonstrated a noticeable photocatalytic performance toward bisphenol A degradation. Notably, the obtained eosin Y/Nb 3 O 7 (OH)-1.0 % composite not only exhibited efficient visible-light harvesting and high surface area but also showed significantly improved charge separation and bisphenol A degradation compared to pristine Nb 3 O 7 (OH) sample. The rate constant of the eosin Y/Nb 3 O 7 (OH)-1.0 % sample for bisphenol A degradation was approximately 0.04252 min −1 , which was 7.85 times that of pristine Nb 3 O 7 (OH) sample. Furthermore, the eosin Y/Nb 3 O 7 (OH)-1.0 % composite achieved approximately 59.76 % mineralization of bisphenol A within 20 min and 75.28 % mineralization within 40 min under visible-light illumination. Additionally, the effects of experimental parameters on bisphenol A degradation and the dye-sensitization mechanism were proposed. The current work suggests the obvious advantages of defective Nb 3 O 7 (OH) nanostructure in fabricating high-performance composite photocatalysts for eliminating emerging pollutants.
研究领域:
环境科学
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纳米技术
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材料科学
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化学工程
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Xiaoxia Liu,Sa Yang,Yanli Cheng,Donglei Wei,Hou Chen,Liangjiu Bai,Wenxiang Wang,Huawei Yang,Lixia Yang,Kun Yin
A hydrogel-based photocatalyst is synthesized by the construction of a hydrogel skeleton using common monomers and subsequent in situ generation of Zn–Cu–S photocatalyst particles. The photocatalytic degradation performance of the hydrogel-based photocatalyst is systematically studied, and the photocatalyst exhibits good removal ability for eosin Y. The composite photocatalyst shows high efficiency at low loading, with a removal rate of up to >98% in 3 hours under sunlight irradiation, without the need for a preliminary dark adsorption process. High removal efficiency was observed, remaining above 95% even after 10 recycling runs, demonstrating the excellent stability of the composite photocatalyst. We thus provide a facile method to construct hydrogel-based photocatalysts that show high application potential in the photocatalytic removal of eosin Y.
研究领域:
环境科学
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材料科学
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化学工程
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光催化
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高影响因子
BIOPROCESS AND BIOSYSTEMS ENGINEERING
·
2024
·Vol. 47
·期 3
·355-366
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IF 3.5
Duan Xiaoyan,Pi Qian,Tang Lei
Dyes in wastewater have adverse effects on the environment and human health. Dye-decolorizing peroxidase (DyP) is a promising biocatalyst to dyes degradation, but the decolorization rates varied greatly which influencing factors and mechanisms remain to be fully disclosed. To explore an effective decolorizing approach, we have studied a DyP from Rhodococcus jostii ( Rh DyPB) which was overexpressed in Escherichia coli to decolorize four kinds of dyes, Reactive blue 19, Eosin Y, Indigo carmine, and Malachite green. We found the decolorization rates of the dyes by purified Rh DyPB were all pH-dependent and the highest one was 94.4% of Malachite green at pH 6.0. ESI–MS analysis of intermediates in the decolorization process of Reactive blue 19 proved the degradation was due to peroxidase catalysis. Molecular docking predicated the interaction of Rh DyPB with dyes, and a radical transfer reaction. In addition, we performed decolorization of dyes with whole E. coli cell with and without expressing Rh DyPB. It was found that decolorization of dyes by E. coli cell was due to both cell absorption and degradation, and Rh DyPB expression improved the degradation rates towards Reactive blue 19, Indigo carmine and Malachite green. The effective decolorization of Malachite green and the successful application of whole DyP-overexpressed cells in dye decolorization is conducive to the bioremediation of dye-containing wastewaters by DyPs. Graphical abstract
研究领域:
环境生物技术
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酶催化
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生物修复
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蛋白质工程
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废水处理
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DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2025
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IF 5.6
Hao Zhou,Zhiwen Qi,Hongxia Chen,Xingying Xue,Lingyan Liu,Chengzhang Wang
In recent years, various antibiotic-resistant bacterial species have emerged, thereby complicating bacterial infection treatment. Hence, the development of nontraditional, multifunctional, cationic photodynamic antibacterial agents is imperative and valuable to inhibit normal and multidrug-resistant bacterial strains. Here, by performing ring-opening reactions, we successfully synthesized an antibacterial polycation (EY-QEGDM-MG) based on gallic acid, ethylene glycol diglycidyl ether, and eosin Y and enriched with various functional components, namely a photosensitizer, quaternary ammonium (QA), and hydroxyl species. Under light irradiation, the polymer inhibited the growth of both Escherichia coli and methicillin-resistant Staphylococcus aureus because of the combined antibacterial activities of the photosensitizer and the QA group. Evaluation of the mechanism of the antibacterial effect revealed that the polymer binds to the bacterial cell surface and irreversibly damages the cell wall and membrane structure. Furthermore, the polymer also exhibited low cytotoxicity and good hemocompatibility. The antibacterial efficacy of the polymer was assessed in vivo on a rat wound infection model; the polymer showed sustainably enhanced therapeutic effects. Alterations in the levels of CD31-expressing cells and CD68 + macrophages and results of histological analyses validated that the polymer could inhibit bacterial infection in the mice model. The present study provides an efficient approach to develop an effective antimicrobial agent to reduce hospital-acquired bacterial infections.
研究领域:
抗菌治疗
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光动力疗法
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高分子化学
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微生物学
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生物医学材料
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传染病学
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药剂学
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
·
IF 8.3
Meijuan Ding,Mei Li,Yijun Wang,Ziyu Li
Metal oxides have excellent photocatalytic properties. In this work, LDHs are used as precursors to prepare metal oxides (Cu 0.04 Zn 0.47 Co 2.49 O 4 ). Synthesis of graphdiyne (GDY) by mechanochemical method using calcium carbide as raw material. It is complexed with Cu 0.04 Zn 0.47 Co 2.49 O 4 to explore the hydrogen evolution performance of the composite catalyst CZC (Cu 0.04 Zn 0.47 Co 2.49 O 4 )/G (GDY) in water splitting under visible light and its possible hydrogen evolution mechanism. The results show that the composite catalyst CZC/G-11 has good hydrogen evolution activity, and its photocatalytic hydrogen evolution activity could reach up to 17.7 μmol h −1 at pH = 9. The four hydrogen evolution cycle stability tests show that CZC/G-11 maintains a relatively smooth level of hydrogen evolution. The photoelectrochemical and fluorescence test results show that the incorporation of GDY can effectively improve the charge separation efficiency of the composite catalyst CZC/G-11. Both CZC and GDY are n-type semiconductors, as shown by the Mott-Schottky test results. The catalysts are also tested by UPS and the energy band structure is analyzed, with conduction band values of −0.54 V and −0.58 V and valence band values of 1.41 V and 0.83 V for CZC and GDY, respectively. Combined with the electron transfer direction of each catalyst, the possible mechanism of photocatalytic hydrogen evolution between CZC and GDY is analyzed, and it is speculated that Z-scheme heterojunction is formed between CZC and GDY to promote the hydrogen evolution reaction.
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
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2024
·
IF 8.1
Shiyong Xu,Mei Li,Ziyu Li,Meijuan Ding,Yijun Wang,Zhiliang Jin
NS-CQDs were synthesized by a hydrothermal method using high-sulfur lignite as the carbon source. Modification of Ni-MOF and Co/Zr-MOF using NS-CQDs to explore the performance of composite photocatalysts for hydrogen production . It was found that NS-CQDs significantly enhanced the hydrogen precipitation performance of the composite photocatalysts compared with the MOFs catalysts alone, and the highest hydrogen precipitation rate of the novel composite photocatalyst 5%NS-CQDs/NCZ2 reached 3662.68 μmol g −1 h −1 . It can be inferred from the conduction band and valence band positions of Ni-MOF, Co/Zr-MOF and NS-CQDs that a double S-type heterojunction is formed. The presence of thiophene and pyrrole nitrogen in NS-CQDs can promote electron transport , reduce the rate of electron-hole pair complexation, and improve the hydrogen evolution activity of the 5%NS-CQDs/NCZ2.
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
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2025
·Vol. 27
·期 8
·4278-4289
·
IF 2.9
Ziyu Li,Mei Li,Rongsheng Xu,Zhiliang Jin
The electron transfer rate in photocatalysts is one of the factors determining their hydrogen production activity. In this work, NH2-MIL-88B(Fe) (NFM) was synthesized using a one-step hydrothermal synthesis method and NFM/GDY-25 (NFMG-25) was successfully synthesized by loading graphdiyne (GDY) onto the surface of NFM. The hydrogen production performance and the mechanism of the prepared photocatalysts were systematically investigated using XRD, SEM, FT-IR, XPS, UV-Vis, PL and photoelectrochemical tests. The results showed that the hydrogen production of NFMG-25 reached 61.7 μmol in 5 hours. Photoelectrochemical and Mott–Schottky tests demonstrated that the composite catalyst exhibited high photogenerated carrier separation efficiency and single catalysts were n-type semiconductors. The conduction bands of NFM and GDY were −0.36 V and −0.56 V, respectively, while the valence bands were 1.90 V and 1.12 V. NFM acted as an electron acceptor and donor, which accelerated the transfer of the electrons, and enhanced the photocatalytic hydrogen production efficiency of the composite system. This study provides an effective method for using NFM in photocatalytic hydrogen production.
研究领域:
材料科学
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能源科学
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DOI
PubMed
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2024
·
IF 6.2
Shunli Che,Mengting Huang,Lemei Zhu,Longteng Shen,Yuan Ma,Zhicheng Wan,Xuguang Li,Jun Zhou,Shuquan Ding,Xilei Li
Nanopolystyrene (NP) and phoxim (PHO) are common environmental pollutants in aquatic systems. We evaluated the toxic effects of exposure to ambient concentrations of NP and/or PHO in the intestines of the Chinese mitten crab ( Eriocheir sinensis ). Our study showed that histopathological changes were observed in the intestines. Specifically, NP and/or PHO exposure increased intraepithelial lymphocytes. Furthermore, NP and/or PHO exposure induced oxidative stress, as evidenced by a significant decrease in superoxide dismutase activity (SOD), peroxidase activity (POD), and total antioxidant capacity (T-AOC). Pro-inflammatory gene expression and transcriptome analysis demonstrated that NP and/or PHO exposure induced the intestinal inflammatory response. Transcriptome results showed that NP and/or PHO exposure upregulated the NF-κB signaling pathway, which is considered a key pathway in the inflammatory response. Additionally, the expression of pro-inflammatory genes significantly increased after a single exposure to NP or PHO, but it exhibited a significant decrease after the co-exposure. The downregulation of these genes in the co-exposure group likely suggested that the co-exposure mitigated intestinal inflammation response in E. sinensis . Collectively, our findings mainly showed that NP and/or PHO exposure at ambient concentrations induces oxidative stress and inflammatory response in the intestines of E. sinensis .
研究领域:
环境毒理学
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水生生物学
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分子生物学
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DOI
PubMed
高影响因子
EUROPEAN JOURNAL OF PHARMACOLOGY
·
2024
·
IF 4.2
Wenyuan Yu,Jianghuiwen Lu,Xinqi Huang,Huiru Zhuang,Yumei An,Mingyang Zhang
Background Effective drugs for preventing or treating skin flap necrosis remain elusive. In this study, we investigated the potential protective effect of exendin-4 against skin flap ischemia-reperfusion injury (IRI) through the inhibition of ferroptosis. Method A rat abdomen was constructed with an island skin flap, and the superficial vascular pedicle of the abdominal wall was closed using a vascular clamp, which was removed after 8 h. Before surgery, RSL3 and ferrostatin-1 solutions were intraperitoneally injected. After the surgery, subcutaneous injections of exendin-4 were administered daily. The number of inflammatory cells, mean vascular density, collagen fiber content, and apoptosis and ferroptosis indicators were quantified 24 h after reperfusion. Survival, contraction rate, and blood perfusion of the skin flap were evaluated on days 1, 3, 5, and 7 after reperfusion. Results The flap survival rate was significantly higher in the exendin-4 group than that in the injury group, whereas the contraction rate was lower. Compared with the injury group, the exendin-4 group showed less inflammatory cell infiltration, higher vascular density, and less collagen fiber loss. At the molecular level, the exendin-4 group demonstrated opposite or elevated expression of apoptosis and ferroptosis indicators than those in the injury group, with significantly increased glutathione peroxidase 4 (Gpx4). Ferroptosis inhibitors and agonists enhanced and reversed the protective effects of exendin-4, respectively. Conclusion Exendin-4 alleviates skin flap IRI by upregulating Gpx4 expression to inhibit ferroptosis. Therefore, exendin-4 may serve as a novel clinical treatment for skin flap IRI.
研究领域:
药理学
·
外科手术
·
分子生物学
·
病理学
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DOI
PubMed
高影响因子
VIEW
·
2025
·
IF 8.5
Yi Dai,Jianyi Xu,Jie Hao,Zhang Liu,Chengze Lan,Guanghua Xu,Xizhi Meng,Yating Deng,Peng Wan,Kunxing Liu,Yingtao Yao,Fang Zhao,Peng Fei,Xiu Nie,Gang Lv,Dan Zhu,Tingting Yu
Three-dimensional (3D) visualization and analysis of histological features in human tissue can enhance our comprehension of organ function and elevate the precision of clinical diagnosis. Tissue optical clearing technique has emerged as a potent approach for achieving 3D imaging of large human tissues at a cellular resolution. However, the utilization of tissue clearing to obtain 3D structures of human tissue is hindered by prolonged incubation periods and intricate procedural steps. To address these issues, a rapid and straightforward clearing protocol termed single-step dehydration solvent-based clearing (SSD) is proposed by the introduction of trimethyl borate, which is innovatively incorporated into the tissue clearing process to expedite incubation and streamline the clearing procedure via chemical dehydration. This method reduces the clearing time by 70% and exhibits ideal compatibility with a variety of probes. SSD allows 3D histological imaging and analysis of nerves and vessels, as well as 3D pathological assessment of tumors, within human organs. As an ultrafast clearing alternative, SSD promises to facilitate histological research and enhance clinical diagnostic capabilities.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2024
·
IF 8.1
Qian Liu,Changdi Wang,Hao Wang,Lu Li,Xingrong Zhang,Ruiyang Zhao,Jishu Han,Lei Wang
Hydrogen energy produced through photocatalytic water splitting is widely recognized as a viable solution to the depletion of non-renewable energy resources and ecological contamination concerns. This work designed and synthesized the MOF-derived hollow octahedral Co x P/MOF-801 p-n heterojunction photocatalyst . According to the result of hydrogen production test, the hydrogen production amount of Co x P/MOF-801-2 could reach 25.31 mmol g −1 under light irradiation for 5 h. The hollow octahedral structure and p-n heterojunction of the photocatalyst helped to enhance the light trapping ability and promote carrier transfer, resulting in improved performance of photocatalytic hydrogen production. To sum up, the design of hollow octahedral Co x P/MOF-801 photocatalyst effectively improved the photocatalytic hydrogen production performance.
研究领域:
材料科学
·
能源化学
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DOI
高影响因子
危险品化学品经营许可证（带存储）