Research on Chemical Intermediates最新文献

{"title":"Ingenious fabrication of Ni-doped Mg2Al-layered double hydroxide/g-C3N4 composite material for efficient photocatalytic degradation of tetracycline","authors":"Xiaobin Liu,&nbsp;liqin Lin,&nbsp;Wentao Xu,&nbsp;Miaoqiong Xu,&nbsp;Huaqiang Zhuang,&nbsp;Yongshan Chen,&nbsp;Xiaoyang Pan,&nbsp;Qingbiao Li","doi":"10.1007/s11164-025-05722-1","DOIUrl":"10.1007/s11164-025-05722-1","url":null,"abstract":"<div><p>A 2D-2D Ni-doped Mg₂Al-layered double hydroxide/g-C₃N₄ (Ni-LDH/g-C₃N₄) composite material was ingeniously designed and prepared utilizing a green and facile strategy, which displayed an excellent photocatalytic performance for tetracycline degradation under visible light irradiation. The morphology of Ni-LDH material was the shape of nanosheets and its size was in the range of 200 to 400 nm, which was incorporated into g-C₃N₄ to construct 2D-2D composite structure. In the Ni-LDH/g-C₃N₄ composite materials, Ni-LDH materials played an important role in improving its separation and transfer efficiency of photo-generated charge carriers, as demonstrated by photoelectrochemical measurement. Thereinto, it can be obtained that the Ni-LDH/g-C₃N₄ materials possessed much higher photocatalytic performance than pristine g-C₃N₄ and Mg₂Al-layered double hydroxide/g-C₃N₄ materials, suggesting that it was much more beneficial to accelerate the photocatalytic reaction process. Additionally, the optimal Ni-LDH/g-C₃N₄ material, namely CNANi-10 sample, achieved a 73.3% degradation rate for tetracycline (10 ppm) within 90 min. Remarkably, the active species trapping experiments were implemented using the CNANi-10 sample, revealing that the superoxide radicals (·O₂⁻) and hole (h⁺) were the major active species to participate in the photocatalytic oxidation process. Prospectively, this work provides an efficient and low-cost strategy to construct efficient photocatalysts for water remediation.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6353 - 6369"},"PeriodicalIF":3.5,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation into the effects of Ce element loading on Cu-SAPO-34 catalyst structure and performance","authors":"Bin Guan,&nbsp;Zhongqi Zhuang,&nbsp;Lei Zhu,&nbsp;Xuehan Hu,&nbsp;Chenyu Zhu,&nbsp;Sikai Zhao,&nbsp;Junyan Chen,&nbsp;Junjie Gao,&nbsp;Kaiyou Shu,&nbsp;Hongtao Dang,&nbsp;Luyang Zhang,&nbsp;Tiankui Zhu,&nbsp;Wenbo Zeng,&nbsp;Minfan Qian,&nbsp;Shuai Chen,&nbsp;Linhui Wang,&nbsp;Can Zhu,&nbsp;Jiaming He,&nbsp;Qinghan Xian,&nbsp;Zhen Huang","doi":"10.1007/s11164-025-05736-9","DOIUrl":"10.1007/s11164-025-05736-9","url":null,"abstract":"<div><p>Currently, one of the most significant technologies for lowering NO_<i>x</i> emissions from diesel engines is the selective catalytic reduction with ammonia (NH₃-SCR) technique, which uses ammonia as a reducing agent. The wide active temperature window, excellent nitrogen selectivity, and outstanding hydrothermal aging stability of NH₃-SCR catalysts are important given the real working circumstances of engines and the regeneration of DPF upstream of the SCR system. Cu-SAPO-34, a small-pore molecular sieve catalyst, has drawn a lot of interest because of its high-temperature hydrothermal aging stability and good low-temperature activity. One important problem that must be resolved, nevertheless, is Cu-SAPO-34’s low-temperature hydrothermal stability. The impact of loading the active element Ce on the catalyst’s performance and low-temperature hydrothermal stability was examined in this work. Three CuCe_<i>x</i>-SAPO-34 catalysts with varying Ce/Al molar ratios were created using a one-step synthesis process after varying Ce loading levels were established. According to the outcomes of performance assessment trials, the catalyst’s improved effect on the NO_<i>x</i> conversion rate is most noticeable when the Ce/Al ratio is 0.06 when compared to the catalyst without Ce. Multiple characterizations of the CuCe_0.06-SAPO-34 and Cu-SAPO-34 catalysts have revealed that loading a suitable amount of Ce can help the catalyst form a porous structure, improve the catalyst’s distribution of copper ions and acidic sites, increase the stability of its pore and surface structures, lessen aging-related deterioration, and allow the catalyst to have a large number of acidic sites and SCR active sites both before and after aging, all of which contribute to the catalyst’s excellent SCR performance.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6155 - 6184"},"PeriodicalIF":3.5,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of different introduction methods of Mn and Fe on polyhedral morphology CeO2 for low-temperature NH3-SCR","authors":"Yuhan Zhou,&nbsp;Chen Yang,&nbsp;Wei Tong,&nbsp;Man Yin,&nbsp;Genfa Chen,&nbsp;Lingfeng Du,&nbsp;Jie Yang","doi":"10.1007/s11164-025-05737-8","DOIUrl":"10.1007/s11164-025-05737-8","url":null,"abstract":"<div><p>Cerium dioxide with polyhedral morphology (CeO₂-NPs) was loaded with Mn and/or Fe oxides by applying impregnation method (I-Ce@Mn and I-Ce@Mn-Fe) or solid-phase diffusion method (S-Ce@Mn and S-Ce@Mn-Fe) to study the performance improvement. The results showed that the activity sequence in the temperature range of 100–300 °C of the four catalysts was I-Ce@Mn-Fe &gt; S-Ce@Mn-Fe &gt; I-Ce@Mn &gt; S-Ce@Mn. The NO<i>x</i> conversion of I-Ce@Mn-Fe yielded the highest activity. Results showed that the relative contents of Ce³⁺ and adsorbed oxygen on the surface of the catalyst supported by impregnation method were higher than those supported by solid-phase diffusion method, and the relative contents of Ce³⁺ and adsorbed oxygen on the surface of the I-Ce@Mn-Fe catalyst were the highest. I-Ce@Mn-Fe catalyst also showed the largest H₂ consumption at low temperature, showing best redox performance. In conclusion, the introduction method of Mn and Fe by using impregnation method on CeO₂-NPs could effectively improve the SCR performance.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6005 - 6019"},"PeriodicalIF":3.5,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancement of the photocatalytic degradation performance for tetracycline of magnetic Fe3O4/ZnO/g-C3N4 composites by strengthening the bonding effect","authors":"Lijuan Han,&nbsp;Keyi Chai,&nbsp;Xinyu Du,&nbsp;Xiangtong Wang,&nbsp;Ping Zhang,&nbsp;Xiaotian Wang","doi":"10.1007/s11164-025-05735-w","DOIUrl":"10.1007/s11164-025-05735-w","url":null,"abstract":"<div><p>Tetracycline poses a serious threat to the ecosystems even if the concentration is very low due to its structural stability. In this work, a series of magnetic separable Fe₃O₄/ZnO/g-C₃N₄ composite with excellent degrading tetracycline performance were prepared. And, repeated calcination method was used to strengthen the bonding effect of single component improving the formation of heterojunction. Electrochemical analysis confirmed that the ZnO/g-C₃N₄ and Fe₃O₄/ZnO/g-C₃N₄ heterojunctions were generated, effectively accelerating the electron separation and transfer in photocatalytic process. The characterization results also showed that ZnO and Fe₃O₄ nanoparticles are evenly distributed on the surface of g-C₃N₄. With the increase of the loading mass concentration of ZnO/g-C₃N₄, the degradation rate of tetracycline on Fe₃O₄/ZnO/g-C₃N₄ composite increased and then decreased. The degradation rate of tetracycline on optimal Fe₃O₄/ZnO/g-C₃N₄ composite reached to 94.50% while the TC mineralization rate reached to 61.61% under visible light irradiation for 120 min, exhibiting excellent photocatalytic performance. Due to the effect of Fe₃O₄, Fe₃O₄/ZnO/g-C₃N₄ materials exhibited good magnetic property, which is beneficial to separation and recovery of photocatalysts. The reusability experiment showed that the degradation rate of tetracycline was 80.66% after five cycles, displaying good reusability.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6393 - 6415"},"PeriodicalIF":3.5,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rational design of S-scheme carbon-doped graphitic carbon nitride/ZnIn2S4 heterojunction with enhanced photocatalytic performance for Carbendazim","authors":"Chao Liu,&nbsp;Yanyan Jiang,&nbsp;Yuan Wei,&nbsp;Shiming Jia,&nbsp;Huaide Liu,&nbsp;Ziyan Yu,&nbsp;Junfeng Sun,&nbsp;Zhiqi Kang,&nbsp;Guanghui Cheng,&nbsp;Gaofeng Shi,&nbsp;Guoying Wang","doi":"10.1007/s11164-025-05723-0","DOIUrl":"10.1007/s11164-025-05723-0","url":null,"abstract":"<div><p>The synergistic combination of elemental doping and heterostructure engineering offers an effective strategy to overcome inherent limitations of conventional graphitic carbon nitride (g-C₃N₄) in photocatalyst application, particularly insufficient active sites, rapid charge carrier recombination, and narrow light absorption. This study introduces carbon self-doping into g-C₃N₄, followed by self-assembly with band-matched ZnIn₂S₄(ZIS) to construct an S-scheme C-g-C₃N₄/ZnIn₂S₄(CCN@ZIS) heterojunction. Multimodal characterization confirms carbon incorporation modifies the band structure of g-C₃N₄, induces <i>n</i>–<i>π</i>* transitions, and creates defect/impurity levels, significantly enhancing light absorption. Crucially, the S-scheme charge transfer mechanism enables efficient separation of photogenerated carriers, substantially boosting photocatalytic performance. These structural optimizations enable the CCN@ZIS-2 composite to achieve 94.3% carbendazim (CBZ) degradation within 60 min—outperforming CCN and ZIS by factors of 1.19 and 1.31, respectively. This work provides novel insights for high-efficiency photocatalytic degradation of pesticide in water environment.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6371 - 6392"},"PeriodicalIF":3.5,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11164-025-05723-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new approach to catalytic reactivity to study the influence of Mg in Ni-based Takovite-type catalysts via dry methane reforming","authors":"Zoulikha Abdelsadek,&nbsp;Patrick J. Masset","doi":"10.1007/s11164-025-05721-2","DOIUrl":"10.1007/s11164-025-05721-2","url":null,"abstract":"<div><p>Takovite and Mg@Takovite, with partial substitution of Ni by Mg, are Ni-based catalysts derived from hydrotalcite (layered double hydroxide) structures. They were synthesized by the solid crystallization phase method under alkaline conditions (pH = 9), calcined at 450 °C for 6 h to form oxide phases, and reduced under hydrogen at 650 °C for 1 h to produce the active Ni⁰ phase for catalytic dry reforming of methane (DRM). Structural and textural properties at different stages (fresh, calcined, reduced, tested) were analyzed using XRD, FTIR, BET, AAS, SEM, TEM, TPR-H₂, and TGA/DTA. Catalytic performance was evaluated in DRM at atmospheric pressure through two temperature cycles: cycle 1 (500–700 °C) and cycle 2 (700–500 °C). The study aimed (i) to investigate oxide phases obtained from hydrotalcites at low calcination temperatures compared with conventional oxides, and (ii) to assess catalytic activity, stability, and resistance to carbon deposition, particularly in cycle 2 at 500 °C, an industrially relevant low temperature for economic and energy efficiency. Mg@Takovite-c exhibited high activity and stability, maintaining performance at 500 °C without deactivation over 24 h. Mg addition enhanced surface area, promoted high Ni⁰ dispersion, tuned acid–base properties, improved reducibility, and suppressed carbon deposition, resulting in ~ 94% conversion and H₂/CO ≈ 0.92.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"5969 - 6004"},"PeriodicalIF":3.5,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable synthesis of ZnO nanoparticles from Brickellia cavanillesii extract with enhanced photocatalytic and antimicrobial properties","authors":"Jose Alejandro Villegas Fuentes,&nbsp;Dana Karen Meza Martinez,&nbsp;Luis Mario Olmos Ortiz,&nbsp;Alfredo Rafael Vilchis Nestor,&nbsp;Priscy Alfredo Luque Morales","doi":"10.1007/s11164-025-05720-3","DOIUrl":"10.1007/s11164-025-05720-3","url":null,"abstract":"<div><p>Zinc oxide (ZnO) semiconductor nanoparticles (NPs) were synthesized via a green chemistry approach using a phytochemical-rich natural extract derived from <i>Brickellia cavanillesii</i> in an environmentally friendly approach. Multiple techniques were used to study the properties of the obtained materials, including Scanning Electron Microscopy (SEM) to investigate surface morphology. At the same time, Transmission Electron Microscopy (TEM) was utilized to measure morphological characteristics and estimate the average particle size of the obtained materials; the analysis results suggest a direct influence of the extract and its concentration on particle size. The synthesized NPs presented high crystallinity and a zincite hexagonal shape, as analyzed employing X-ray diffraction (XRD). The photocatalytic performance of the NPs was systematically analyzed by monitoring the photodegradation of a series of organic dye pollutants under ultraviolet (UV) irradiation. The selected dyes: Congo red, methylene blue, malachite green, rhodamine B, and methyl orange, served as representative models for both anionic and cationic contaminants commonly found in industrial wastewater. The results demonstrated a remarkable capability of the materials to remove these pollutants from aqueous solutions, achieving complete degradation (100%) of Congo red and methylene blue. Furthermore, the synthesized NPs were able to eliminate at least 81% of malachite green, rhodamine B, and methyl orange, highlighting their strong potential for application in wastewater treatment and environmental remediation. Finally, the antimicrobial activity of NPs against multiple bacteria (<i>Bacillus subtilis</i>, <i>Staphylococcus aureus</i>, <i>Klebsiella pneumoniae</i>, and <i>Escherichia coli</i>) was analyzed, demonstrating a bacteriostatic effect on the bacteria.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 10","pages":"5425 - 5449"},"PeriodicalIF":3.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11164-025-05720-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid hydrogen evolution from NaBH4 methanolysis using Co–Fe LDH: catalytic efficiency, kinetic modeling, and recyclability","authors":"Ömer Şahin,&nbsp;Muhammed Bora Akin","doi":"10.1007/s11164-025-05726-x","DOIUrl":"10.1007/s11164-025-05726-x","url":null,"abstract":"<div><p>This work explores the catalytic performance of Co–Fe layered double hydroxide (LDH) in the methanolysis of sodium borohydride (NaBH₄) for hydrogen production. A systematic investigation was carried out to assess the influence of temperature (20–50 °C), catalyst loading (133–1333 ppm), methanol volume (5–20 mL), and NaBH₄ concentration (0.176–0.881 M) on the hydrogen generation rate (HGR). The Co–Fe LDH catalyst was synthesized through co-precipitation and thoroughly characterized via X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM–EDX), elemental mapping, Fourier-transform infrared spectroscopy (FT-IR), and Brunauer–Emmett–Teller (BET) techniques. Kinetic evolutions revealed a power-law rate model with a reaction order of 2.25 and an activation energy of 8.47 kJ mol⁻¹. Additional kinetic modeling using Michaelis–Menten and Langmuir–Hinshelwood approaches yielded activation energies of 10.61 and 10.08 kJ mol⁻¹, respectively. Thermodynamic analysis indicated favorable reaction conditions, with calculated enthalpy and entropy values of 14.20 kJ mol⁻¹ and 39.45 kJ mol⁻¹ K⁻¹, and a progressive decrease in Gibbs free energy from − 11,543.6 to − 12,727.0 J mol⁻¹. The optimum HGR value of 584.43 L min⁻¹ gcat⁻¹ was achieved at 30 °C using 133 ppm catalyst, 0.528 M NaBH₄, and 15 mL methanol. Under identical conditions, except for a higher NaBH₄ concentration of 0.881 M, the maximum HGR increased to 776.40 L min⁻¹ gcat⁻¹. After five successive reaction cycles, the catalyst preserved 91% of its initial activity, confirming its reusability and structural stability. These results underscore the potential of Co–Fe LDH as a low-cost, eco-friendly catalyst for rapid hydrogen generation, with promising implications for future enhancements.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 10","pages":"5563 - 5593"},"PeriodicalIF":3.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zinc(II) complexes of salicylaldehyde-based ligands: synthesis, structural exploration, DFT, and biological evaluation","authors":"Priyanka Malik,&nbsp;Yogesh Deswal,&nbsp;Anshul Singh,&nbsp;Navjot Kaur,&nbsp;Naresh Kumar,&nbsp;Laxmi Deswal","doi":"10.1007/s11164-025-05714-1","DOIUrl":"10.1007/s11164-025-05714-1","url":null,"abstract":"<div><p>In the present study, octahedral complexes of Zinc(II) metal of the type [Zn(L¹⁻⁵)(H₂O)₃] (6–10) were prepared from ligands [H₂L¹⁻⁵] (1–5). Ligands were prepared by the condensation of salicylaldehyde derivatives with 6-amino-2,4-dichloro-3-methylphenol under refluxing in 1:1 composition. The compounds were investigated using various spectral and physicochemical techniques, including NMR, mass spectrometry, IR spectroscopy, powder XRD, melting point determination, and molar conductance measurements. The results obtained from these techniques established the tridentate behaviour of the ligands, which coordinate to the Zinc(II) metal ion through the deprotonated oxygen of the hydroxyl group and the azomethine nitrogen. DFT calculations of synthesized compounds were executed using B3LYP/LANL2DZ level of theory as implemented in Gaussian 16 without imposing any symmetry restrictions. The synthesized compounds were tested for their antimicrobial action using the serial dilution method, and the biological studies divulged that chelation adds to the antimicrobial activity of the compounds. Zinc(II) complex 9 was found to be the most potent against the tested microbes among the studied compounds. This observation depicts that these complexes may evident as remarkable active components in biomedical research and can be explored further for <i>in-vivo</i> studies.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 10","pages":"5809 - 5835"},"PeriodicalIF":3.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The turn-off fluorescent chemical sensor based on imidazole structure for highly selective and accurate detection of Cu2+ ion in living cells","authors":"Jing Wang,&nbsp;Shuangbao Li,&nbsp;Lu Ren,&nbsp;Zian Wang,&nbsp;Yanqi Liu,&nbsp;Dawei Zhang","doi":"10.1007/s11164-025-05725-y","DOIUrl":"10.1007/s11164-025-05725-y","url":null,"abstract":"<div><p>The compounds with an imidazole structure, DHH and DHM, were synthesized using benzoyl, ammonium acetate, 2-hydroxy-5-methylisophthalaldehyde, and 2-(3-aldehyde-4-hydroxyphenyl)- 4-methylthiazole-5-carboxylate as raw materials. The structures of probes DHH and DHM were characterized by FT-IR, ¹H NMR, ¹³C NMR, and HR-MS. This study found that DHH and DHM can rapidly and highly selectively recognize Cu²⁺ in EtOH-H₂O (1:1 v/v). The spectral characteristics of DHH and DHM were studied using fluorescence spectroscopy and UV–vis spectroscopy. The results show that the combination of DHH and DHM with Cu²⁺ produces a significant fluorescence quenching effect, and the influence of other metal ions can be neglected. Subsequently, through Job’s plot analysis, ¹H NMR titration, and DFT calculations, the binding mechanisms of probes DHH and DHM with Cu²⁺ were explored, and it was found that they coordinate in a 2:1 ratio. The experimental study on standard addition recovery showed that probes DHH and DHM could be used for the quantitative detection of Cu²⁺ in actual water samples. The probes were also successfully applied to the monitoring of Cu²⁺ in living cells.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div><p>The compounds containing imidazole structures in probes DHH and DHM were successfully synthesized and characterized. Test strips made of DHH and DHM were used for rapid “naked-eye” detection of Cu2⁺ in an aqueous medium. The probes were successfully used to monitor Cu2⁺ in living cells and real water samples.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 11","pages":"6633 - 6653"},"PeriodicalIF":3.5,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145296394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}