New Journal of Chemistry最新文献

筛选
英文 中文
Cross-linker-free fabrication of chitosan–MnO2 composite aerogels with synergistic adsorption-catalysis for high-efficiency room-temperature formaldehyde elimination 无交联剂制备壳聚糖-二氧化锰复合气凝胶的协同吸附-催化高效室温甲醛去除
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-09-02 DOI: 10.1039/D5NJ02675J
Yulong Fan, Wuyu Wang and Xuelai Zhao
{"title":"Cross-linker-free fabrication of chitosan–MnO2 composite aerogels with synergistic adsorption-catalysis for high-efficiency room-temperature formaldehyde elimination","authors":"Yulong Fan, Wuyu Wang and Xuelai Zhao","doi":"10.1039/D5NJ02675J","DOIUrl":"https://doi.org/10.1039/D5NJ02675J","url":null,"abstract":"<p >Formaldehyde (HCHO) is a hazardous indoor air pollutant, yet conventional powdered adsorption materials suffer from aggregation and stability challenges. In this study, a chitosan–manganese dioxide (CS–MnO<small><sub>2</sub></small>) composite aerogel was fabricated <em>via</em> a freeze-drying method without cross-linking agents to achieve synergistic adsorption and catalytic degradation of HCHO. The optimized CS–M2 aerogel leverages the structural stability of CS and the high surface activity of MnO<small><sub>2</sub></small>, ensuring uniform MnO<small><sub>2</sub></small> dispersion and mitigating aggregation issues. The aerogel exhibits outstanding room-temperature performance, achieving an HCHO removal efficiency of 90.26% within 6 hours and an adsorption capacity of 38.99 mg g<small><sup>−1</sup></small>, three times higher than that of pure CS. Kinetic analysis confirms a pseudo-second-order adsorption mechanism (<em>R</em><small><sup>2</sup></small> = 0.994), supported by a hierarchical porous structure and excellent thermal stability (&gt;250 °C), indicating potential flame-retardant properties. This work overcomes the trade-off between MnO<small><sub>2</sub></small> dispersion and reactivity through a green, scalable synthesis strategy, enabling persistent HCHO mineralization. The proposed approach advances the design of multifunctional aerogels for practical indoor air purification, effectively addressing environmental and health concerns.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 37","pages":" 16444-16454"},"PeriodicalIF":2.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110348","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}
引用次数: 0
Silver anchored Cu–Na and Co–Na atrane MOFs as photocatalysts for the visible-light-driven degradation and decolourization of a hydroxyanthraquinone dye 银锚定Cu-Na和Co-Na膜mof作为可见光降解和脱色羟基蒽醌染料的光催化剂
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-09-02 DOI: 10.1039/D5NJ02361K
Sahil Sharma, Jyoti Rohilla, Sahil Thakur, Raghubir Singh and Varinder Kaur
{"title":"Silver anchored Cu–Na and Co–Na atrane MOFs as photocatalysts for the visible-light-driven degradation and decolourization of a hydroxyanthraquinone dye","authors":"Sahil Sharma, Jyoti Rohilla, Sahil Thakur, Raghubir Singh and Varinder Kaur","doi":"10.1039/D5NJ02361K","DOIUrl":"https://doi.org/10.1039/D5NJ02361K","url":null,"abstract":"<p >This study includes the synthesis of atrane-based Cu–Na and <strong>Co–Na MOF</strong>s and the inclusion of silver nanoparticles (AgNPs) into their skeletons for fabricating <strong>Ag/Cu–Na MOF</strong> and <strong>Ag/Co–Na MOF</strong> nanocomposites. The fabrication of each product has been confirmed by using various techniques like FTIR, TGA, BET, PXRD, FESEM, HRTEM, DLS, EDAX, and XPS analyses. The Tauc plots, EIS, photoluminescence studies, and HOMO–LUMO band gap analysis of <strong>Ag/Cu–Na MOF</strong> and <strong>Ag/Co–Na MOF</strong> nanocomposites revealed improvement in their optical properties over the parental MOFs in terms of reduced band gaps, improved charge separation, and increased photocatalytic activity. The photocatalytic activities of Ag/Cu–Na and <strong>Ag/Co–Na MOF</strong>s were evaluated by investigating the photodegradation and decolourization of a representative anthraquinone dye (<em>i.e.</em> 2-hydroxyanthraquinone or 2-HAQ) at room temperature under visible light without using external oxidants (at pH 6). The nanocomposites have significantly achieved 79% degradation and 2.64% (min<small><sup>−1</sup></small>) decolourization of 2-HAQ within 30 min. The degradation process is driven by the reactive oxygen species (ROS) in the form of free radicals (˙OH and ˙O<small><sub>2</sub></small><small><sup>−</sup></small>) due to reduced band gaps, confirmed by EPR analysis. The involvement of reactive sites, mechanism of degradation and formation of degradation products have been supported by LC–MS analysis, DFT calculations and Fukui charges. Additionally, the composites demonstrate excellent structural stability and consistent catalytic activity over four cycles, highlighting their potential as sustainable and environment-friendly photocatalysts.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 37","pages":" 16213-16225"},"PeriodicalIF":2.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110410","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}
引用次数: 0
Crystal chemistry and luminescence properties of tetrabutylphosphonium tetrakis(8-quinolinato)lanthanidate [P4444][Ln(Q)4]·2X (X = H2O and (CH3)2CO) 四丁基磷酸四(8-喹啉)镧酸盐[P4444][Ln(Q)4]·2X (X = H2O和(CH3)2CO)的晶体化学和发光性能
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-09-02 DOI: 10.1039/D4NJ03697B
Stefanie Kammereck, Guillaume Bousrez, Olivier Renier, Veronica Paterlini, Volodymyr Smetana and Anja-Verena Mudring
{"title":"Crystal chemistry and luminescence properties of tetrabutylphosphonium tetrakis(8-quinolinato)lanthanidate [P4444][Ln(Q)4]·2X (X = H2O and (CH3)2CO)","authors":"Stefanie Kammereck, Guillaume Bousrez, Olivier Renier, Veronica Paterlini, Volodymyr Smetana and Anja-Verena Mudring","doi":"10.1039/D4NJ03697B","DOIUrl":"https://doi.org/10.1039/D4NJ03697B","url":null,"abstract":"<p >Since the discovery of AlQ<small><sub>3</sub></small> (Q = 8-quinolinolato) quinolinato complexes, they have been extensively scrutinized as emitter materials for organic lighting. Herein, we report on the first representatives of a series of tetrabutylphosphonium tetrakis(8-quinolinolato)lanthanidate complexes [P<small><sub>4444</sub></small>][Ln(Q)<small><sub>4</sub></small>]·2X (Ln = Dy–Lu and Y; X = H<small><sub>2</sub></small>O for Ln = Dy–Tm, Lu and Y and (CH<small><sub>3</sub></small>)<small><sub>2</sub></small>CO for Ln = Yb), which are synthesised by a simple metathesis reaction of the respective potassium tetrakis(8-quinolinolato)lanthanidate salts with tetrabutylphosphonium bromide in acetone at room temperature. Single-crystal X-ray diffraction reveals that Ln(<small>III</small>) is coordinated by four bidentate 8-quinolinato ligands in the form of a distorted square antiprism. The distinct [Ln(Q)<small><sub>4</sub></small>]<small><sup>−</sup></small> anions interact with the [P<small><sub>4444</sub></small>]<small><sup>+</sup></small> cations through secondary bonding interactions, such as CH–π and van der Waals interactions, in addition to electrostatic coulombic interactions. Although these compounds contain crystal water/solvent molecules (and their synthesis does not require an inert atmosphere), they do not enter the metal coordination sphere but form pairwise intramolecular hydrogen bonds with the two 8-quinolinato ligands of the complex lanthanide anions. Combined differential scanning calorimetry–thermogravimetric analysis indicates that crystal water is lost at around 100 °C and [P<small><sub>4444</sub></small>][Ln(Q)<small><sub>4</sub></small>] is formed, which is stable up to 300 °C, where further degradation occurs. All compounds feature strong emission in the green region, originating from the π* → π transitions within the 8-quinolinato ligand, with lifetimes in the nanosecond range. The luminescence colour changes from blue-green to yellow-green depending on Ln<small><sup>3+</sup></small>, which opens up additional directions in the colour tuning of emitters for organic lighting applications.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16493-16500"},"PeriodicalIF":2.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nj/d4nj03697b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190156","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}
引用次数: 0
Design of bimetallic single-atom catalysts and theoretical study of CO2 reduction reaction 双金属单原子催化剂设计及CO2还原反应的理论研究
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-09-01 DOI: 10.1039/D5NJ02459E
Yang Liu, Zhao-Di Yang and Guiling Zhang
{"title":"Design of bimetallic single-atom catalysts and theoretical study of CO2 reduction reaction","authors":"Yang Liu, Zhao-Di Yang and Guiling Zhang","doi":"10.1039/D5NJ02459E","DOIUrl":"https://doi.org/10.1039/D5NJ02459E","url":null,"abstract":"<p >The electrocatalytic conversion of CO<small><sub>2</sub></small> represents a promising strategy toward achieving carbon neutrality, where single-atom catalysts (SACs) with atomically dispersed metal centers demonstrate exceptional potential for the CO<small><sub>2</sub></small> reduction reaction (CO<small><sub>2</sub></small>RR). This work develops Co<small><sub><em>x</em></sub></small>Fe<small><sub>3−<em>x</em></sub></small>–O<small><sub>4</sub></small>–C<small><sub>4</sub></small>N SACs (<em>x</em> = 0–3) featuring tailored multi-metallic sites and systematically investigates their CO<small><sub>2</sub></small>RR pathways and competitive hydrogen evolution reaction (HER) pathway through density functional theory (DFT) calculations. Detailed analysis of key intermediates reveals that the Fe sites in Co<small><sub>1</sub></small>Fe<small><sub>2</sub></small>–O<small><sub>4</sub></small>–C<small><sub>4</sub></small>N SACs exhibit optimal performance for HCOOH production, achieving a remarkably low energy barrier of 0.51 eV at the rate-determining step. Comparative studies demonstrate that Fe incorporation effectively suppresses competitive HER at Co sites while simultaneously modulating the electronic structures and charge transfer ability, which optimizes intermediate adsorption configurations, particularly enhancing activity and selectivity toward HCOOH generation. The findings establish a fundamental framework for designing multi-metallic SACs with precisely engineered active sites and high selectivity for special high-value-added chemicals.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 37","pages":" 16113-16121"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110432","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}
引用次数: 0
Biophysical characterization of centrosymmetric doubly bridged Cu(ii) complexes: comparative DNA/BSA binding and potential applications 中心对称双桥Cu(ii)配合物的生物物理特性:比较DNA/BSA结合及其潜在应用
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-09-01 DOI: 10.1039/D5NJ01809A
Satyajit Pattanayak, Tuhin Sarkar, Ribhu Maity, Priyanka Das, Paula Brandao, Tithi Maity, Keka Sarkar and Bidhan Chandra Samanta
{"title":"Biophysical characterization of centrosymmetric doubly bridged Cu(ii) complexes: comparative DNA/BSA binding and potential applications","authors":"Satyajit Pattanayak, Tuhin Sarkar, Ribhu Maity, Priyanka Das, Paula Brandao, Tithi Maity, Keka Sarkar and Bidhan Chandra Samanta","doi":"10.1039/D5NJ01809A","DOIUrl":"https://doi.org/10.1039/D5NJ01809A","url":null,"abstract":"<p >Triple-negative breast cancer (TNBC) lacks receptors and represents the most aggressive variant of the disease, rendering treatments exceedingly challenging and limiting the availability of targeted therapeutics. In line with more effective targeted therapies, in the present study, two copper complexes, [Cu<small><sub>2</sub></small>(L1)<small><sub>2</sub></small>Cl<small><sub>2</sub></small>] (complex <strong>1</strong>) and [Cu<small><sub>2</sub></small>(L2)<small><sub>2</sub></small>Cl<small><sub>2</sub></small>] (complex <strong>2</strong>), with N, N, O donor Schiff base ligands, where L1 = 4-bromo-2-((2-(pyridine-2-yl)ethylimino)methyl)phenol and L2 = 4-chloro-2-((2-(pyridine-2-yl)ethylimino)methyl)phenol, were synthesized and subjected to various studies to explore the structural insights, DNA/BSA binding interactions, and anti-breast cancer activity in the MDA-MB-231 cell line. The crystal structures of the complexes were determined using single-crystal X-ray diffraction, revealing that both complexes are centrosymmetric, with their inversion centers located between the two copper atoms at the center of mass of the complexes. DNA binding studies showed that complex <strong>1</strong> likely interacted with DNA through a partial intercalation-binding mode, while complex <strong>2</strong> bound <em>via</em> a partial groove-binding mode. Additionally, both complexes exhibited a single, static quenching mechanism in their binding interactions with BSA. Complex-<strong>2</strong> exhibited greater cytotoxicity with an IC<small><sub>50</sub></small> of 34.66 μg mL<small><sup>−1</sup></small> compared with complex-<strong>1</strong> (81.667 μg mL<small><sup>−1</sup></small>). However, complex-<strong>1</strong> induced a stronger apoptotic response, with 25.7% early and 58.9% late apoptotic cells, whereas complex-<strong>2</strong> resulted in 30.9% early and only 17.8% late apoptotic cells. Both complexes showed anti-proliferative and anti-migratory effects in colony formation and wound healing assays, with complex-<strong>1</strong> more effectively suppressing cell motility and wound closure. Complex-<strong>1</strong> demonstrated excellent biocompatibility with no red blood cell damage compared with complex-<strong>2</strong>, which showed mild hemolytic activity, indicating the potential of complex-<strong>1</strong> for safe intraperitoneal and oral delivery.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16849-16862"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189963","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}
引用次数: 0
Manganese ion doping effect on NaFe2PO4(SO4)2 for high electrochemical performances as cathode material for battery application 锰离子掺杂对NaFe2PO4(SO4)2电池正极材料电化学性能的影响
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-09-01 DOI: 10.1039/D5NJ02503F
Yilei Sun, Yao Liu, Haixia Wang, Zeda Meng, Jae Doc Na and Won-Chun Oh
{"title":"Manganese ion doping effect on NaFe2PO4(SO4)2 for high electrochemical performances as cathode material for battery application","authors":"Yilei Sun, Yao Liu, Haixia Wang, Zeda Meng, Jae Doc Na and Won-Chun Oh","doi":"10.1039/D5NJ02503F","DOIUrl":"https://doi.org/10.1039/D5NJ02503F","url":null,"abstract":"<p >Sodium-based polyanionic compounds are being widely explored as positive electrode materials for sodium-ion batteries due to the advantages of elevated operating voltage plateaus and exceptional cycling stability. This work investigates the charge/discharge characteristics of a newly developed NASICON-type polyanionic cathode, NaFe<small><sub>2</sub></small>PO<small><sub>4</sub></small>(SO<small><sub>4</sub></small>)<small><sub>2</sub></small> (NFPS), through X-ray diffraction refinement and cyclic voltammetry. Subsequently, Mn<small><sup>2+</sup></small> doping improves the structure of the material, significantly improves the electrochemical stability and conductivity, and promotes the sodium ion diffusion rate. The XPS results revealed that manganese doping generated a higher concentration of oxygen vacancies compared with the undoped samples. Electrochemical testing reveals that Na<small><sub>0.84</sub></small>Mn<small><sub>0.08</sub></small>Fe<small><sub>2</sub></small>PO<small><sub>4</sub></small>(SO<small><sub>4</sub></small>)<small><sub>2</sub></small> achieves higher capacity and improved rate performance, surpassing pristine NFPS. At a current density of 25 mA g<small><sup>−1</sup></small>, the initial discharge capacity of NFPS is 56.1 mA h g<small><sup>−1</sup></small> and the initial discharge capacity of NFPS-Mn<small><sub>0.08</sub></small> is 70.6 mA h g<small><sup>−1</sup></small>. After 60 cycles, the discharge capacity of NFPS is 47.1 mA h g<small><sup>−1</sup></small> and the discharge capacity of NFPS-Mn<small><sub>0.08</sub></small> is 60.4 mA h g<small><sup>−1</sup></small>.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16643-16653"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190161","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}
引用次数: 0
Base-free catalytic systems achieved via the design of copper complexes: synthesis of 2-oxazolidinones from propargylic amines and CO2 通过铜配合物的设计实现无碱催化体系:从丙胺和CO2合成2-恶唑烷酮
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-09-01 DOI: 10.1039/D5NJ02766G
Sheng Tao, Zhi-Hong Du, Chun-Bo Bo, Min Li, Fei Chen and Ning Liu
{"title":"Base-free catalytic systems achieved via the design of copper complexes: synthesis of 2-oxazolidinones from propargylic amines and CO2","authors":"Sheng Tao, Zhi-Hong Du, Chun-Bo Bo, Min Li, Fei Chen and Ning Liu","doi":"10.1039/D5NJ02766G","DOIUrl":"https://doi.org/10.1039/D5NJ02766G","url":null,"abstract":"<p >Five N-heterocyclic carbene–copper complexes were synthesized and used as catalysts to prepare 2-oxazolidinones <em>via</em> the carboxylation cyclization of CO<small><sub>2</sub></small> and propargylic amines. This catalytic system could perform broad substrates with a low catalyst loading of 0.75 mol% under no-solvent and base-free conditions and afforded 2-oxazolidinones as the target products in high yields under mild conditions (30–70 °C). The intermediate in the carboxylation cyclization of CO<small><sub>2</sub></small> and propargylic amines was monitored by <em>in situ</em> FT-IR spectroscopy and HRMS methods, and the reaction mechanism was elucidated, in which the coordinated Cu atom acted as the Lewis acidic center to activate propargylic amines and the uncoordinated nitrogen atom of pyridine acted as the Lewis basic center to activate CO<small><sub>2</sub></small>.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 37","pages":" 16122-16133"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110433","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}
引用次数: 0
Correction: Targeted doxorubicin delivery to hepatocarcinoma cells by lactobionic acid-modified laponite nanodisks 更正:通过乳酸修饰的拉脱石纳米片靶向阿霉素递送到肝癌细胞
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-09-01 DOI: 10.1039/D5NJ90126J
Guangxiang Chen, Du Li, Jingchao Li, Xueyan Cao, Jianhua Wang, Xiangyang Shi and Rui Guo
{"title":"Correction: Targeted doxorubicin delivery to hepatocarcinoma cells by lactobionic acid-modified laponite nanodisks","authors":"Guangxiang Chen, Du Li, Jingchao Li, Xueyan Cao, Jianhua Wang, Xiangyang Shi and Rui Guo","doi":"10.1039/D5NJ90126J","DOIUrl":"https://doi.org/10.1039/D5NJ90126J","url":null,"abstract":"<p >Correction for ‘Targeted doxorubicin delivery to hepatocarcinoma cells by lactobionic acid-modified laponite nanodisks’ by Guangxiang Chen <em>et al.</em>, <em>New J. Chem.</em>, 2015, <strong>39</strong>, 2847–2855, https://doi.org/10.1039/c4nj01916d.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 36","pages":" 15981-15982"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nj/d5nj90126j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062008","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}
引用次数: 0
Flame-retardant in situ reinforced PBT via a DOPO-based phosphorus-containing thermoliquid crystal copolyester 基于dopo的含磷热液晶共聚酯阻燃原位增强PBT
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-08-29 DOI: 10.1039/D5NJ02773J
Zhongliang Guo, Yuqin Zhu, Yu Mi, Zhiyong Zhang, Huiying Wen, Lubin Liu, Miaojun Xu and Bin Li
{"title":"Flame-retardant in situ reinforced PBT via a DOPO-based phosphorus-containing thermoliquid crystal copolyester","authors":"Zhongliang Guo, Yuqin Zhu, Yu Mi, Zhiyong Zhang, Huiying Wen, Lubin Liu, Miaojun Xu and Bin Li","doi":"10.1039/D5NJ02773J","DOIUrl":"https://doi.org/10.1039/D5NJ02773J","url":null,"abstract":"<p >In this study, a phosphorus-containing thermotropic liquid crystal copolyester (p-TLCP) was synthesized <em>via</em> melt polycondensation using 2-(6-oxid-6<em>H</em>-dibenzo[<em>c</em>,<em>e</em>][1,2]oxaphosphorin-6-yl)-1,4-benzenediol (DOPO-HQ), terephthalic acid (TPA), <em>p</em>-hydroxybenzoic acid (<em>p</em>-HBA), and dimethyl terephthalate (DMT) as raw materials with a molar ratio of 3 : 3 : 2 : 2. The flame-retardant p-TLCP was subsequently incorporated into polybutylene terephthalate (PBT) to fabricate composites. The thermal properties, flame retardancy, and mechanical performance of the PBT/p-TLCP composites were systematically investigated through limiting oxygen index (LOI), vertical burning (UL-94), and cone calorimetry tests, dynamic thermomechanical analysis (DMA), tensile/impact testing, scanning electron microscopy (SEM), coupled with laser Raman spectroscopy (LRS) and thermogravimetric-Fourier transform infrared (TG-FTIR) spectroscopy. Results revealed that the flame retardancy and mechanical properties of the composites were markedly improved with increasing p-TLCP content. When the p-TLCP addition was 10.0 wt%, the LOI value of the composite increased from 22.0% (pure PBT) to 27.0%, achieving a UL-94 V-0 rating; at a p-TLCP loading of 12.5 wt%, the peak heat release rate (PHRR) and the total heat release (THR) decreased by 22.4% and 35.8% relative to pure PBT, respectively, while the storage modulus and tensile strength were elevated by 22.8% and 19.4%, with impact strength reaching 30.5% enhancement, demonstrating optimal comprehensive performance.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16750-16763"},"PeriodicalIF":2.5,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190180","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}
引用次数: 0
Construction of a Z-scheme WO3/InVO4 heterojunction for enhanced tetracycline photodegradation efficiency z型WO3/InVO4异质结的构建提高了四环素的光降解效率
IF 2.5 3区 化学
New Journal of Chemistry Pub Date : 2025-08-29 DOI: 10.1039/D5NJ02702K
Xia Gong, Guichen Ping, Jinmei Li, Hongjing Ding, Ruixue Cui and Quanquan Shi
{"title":"Construction of a Z-scheme WO3/InVO4 heterojunction for enhanced tetracycline photodegradation efficiency","authors":"Xia Gong, Guichen Ping, Jinmei Li, Hongjing Ding, Ruixue Cui and Quanquan Shi","doi":"10.1039/D5NJ02702K","DOIUrl":"https://doi.org/10.1039/D5NJ02702K","url":null,"abstract":"<p >The substantial presence of antibiotics in aquatic environments remains a critical environmental issue that needs to be urgently addressed. In this study, a Z-scheme WO<small><sub>3</sub></small>/InVO<small><sub>4</sub></small> heterojunction photocatalyst was constructed, and it exhibited superior performance for the degradation of antibiotics in contaminated water. The degradation efficiency of the WO<small><sub>3</sub></small>/InVO<small><sub>4</sub></small> heterojunction for tetracycline (TC) was 11.2 and 1.9 times higher than those of pristine WO<small><sub>3</sub></small> and pristine InVO<small><sub>4</sub></small>, respectively, and the remarkable performance could be maintained after several cycles, which can be ascribed to the stable Z-scheme heterostructure, leading to the efficient transfer and separation of photoinduced electrons and holes. Combined with the results of the active species trapping experiments and EPR, a possible photocatalytic mechanism was proposed, in which ˙O<small><sub>2</sub></small><small><sup>−</sup></small> radicals were the dominating active species while photogenerated holes (h<small><sup>+</sup></small>) and ˙OH offered auxiliary effects for the degradation of TC. This work provides a valuable strategy for developing novel Z-scheme heterostructures for the remediation of antibiotic wastewater.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 38","pages":" 16700-16706"},"PeriodicalIF":2.5,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145190299","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}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信