RSC Advances最新文献

{"title":"Correction: Ordered mesoporous zirconium oxophosphate supported tungsten oxide solid acid catalysts: the improved Brønsted acidity for benzylation of anisole","authors":"Zhichao Miao, Huahua Zhao, Huanling Song and Lingjun Chou","doi":"10.1039/D5RA90033F","DOIUrl":"https://doi.org/10.1039/D5RA90033F","url":null,"abstract":"<p >Correction for ‘Ordered mesoporous zirconium oxophosphate supported tungsten oxide solid acid catalysts: the improved Brønsted acidity for benzylation of anisole’ by Zhichao Miao <em>et al.</em>, <em>RSC Adv.</em>, 2014, <strong>4</strong>, 22509–22519, https://doi.org/10.1039/C4RA02809K.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10188-10189"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra90033f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749043","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":"Synthesis of core/shell cobalt-doped rutile TiO2 nanorods for MB degradation under visible light†","authors":"Lang Yang, Jialei Ying, Zhenzhong Liu, Guangyu He, Linli Xu, Mingyue Liu, Xinlei Xu, Guihua Chen and Meili Guan","doi":"10.1039/D4RA08773A","DOIUrl":"https://doi.org/10.1039/D4RA08773A","url":null,"abstract":"<p >Although TiO<small>₂</small> has been widely applied in many fields, the design and preparation of one-dimensional rutile TiO<small>₂</small> nanomaterials for high-efficiency photocatalysis under visible light remain challenging. Herein, uniform Co-doped rutile TiO<small>₂</small> nanorods with selective adsorption and photocatalytic activity for methylene blue (MB) have been developed <em>via</em> a one-pot molten salt flux method. Compared to pure rutile TiO<small>₂</small> nanorods, the Co-doped rutile TiO<small>₂</small> nanorods exhibited an obvious core/shell structure with smaller inner crystal face spacing (<em>d</em><small>₀₀₁</small> = 0.20 nm) and a larger rough surface (the BET specific surface area is 25 m<small>²</small> g<small>⁻¹</small>). Furthermore, different dyes were employed to investigate the adsorption ability of Co-doped rutile TiO<small>₂</small> nanorods. The density functional theory (DFT) calculations determined that both the electrostatic potential and molecular structure could influence the adsorption behavior on the photocatalyst surface. The results indicated that the Co-doped TiO<small>₂</small> nanorods possessed a high selective adsorption capacity for MB (134.54 mg g<small>⁻¹</small> in neutral solution). The degradation of MB using Co-doped rutile TiO<small>₂</small> nanorods was conducted under visible light irradiation, yielding with an apparent rate constant of 0.301 min<small>⁻¹</small> at pH = 7. The degradation mechanism was further explored through electron spin resonance (ESR) experiments, which identified the formation of superoxide anions (·O<small>₂</small><small>⁻</small>) and hydroxyl radicals (·OH) in the system. This study provides a new strategy for preparing novel rutile TiO<small>₂</small> photocatalysts for the degradation of organic dyes under visible light.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10144-10149"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra08773a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749017","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":"Fabrication of highly luminescent red-emissive carbon dots and their enhancement of cotton growth promoted by La3+†","authors":"Shuai Han, Yunhan Qin, Dandan Zhang, Cuifang Li, Xiaoxue Du, Lijuan Liu, Songbo Yuan, Fangfang Wei, Baoxin Yang and Zhiying Ma","doi":"10.1039/D5RA00209E","DOIUrl":"https://doi.org/10.1039/D5RA00209E","url":null,"abstract":"<p >Red-emissive carbon dots (RCDs) were fabricated using a simple solvothermal method with Nile blue A sulphate and malic acid. The obtained RCDs exhibited good water solubility, excellent stability and a high luminescent quantum yield. The effect of RCDs on the growth of cotton sprouts was further explored, and it was found that the RCDs could effectively promote growth by enhancing root vitality. Furthermore, it was found that adding lanthanum to the RCD solutions could achieve better promotion, with the optimum concentration measured to be 0.02 mg mL<small>⁻¹</small> of RCDs for mixed solutions, which was much lower than that of the RCD solution alone (0.03 mg mL<small>⁻¹</small>). Further analysis results showed that adding lanthanum could enhance the absorption of RCDs by the cotton sprouts, which might be induced by the enhancement of endocytosis in root cells triggered by lanthanum. This work not only provides novel long-wavelength emissive carbon dots with excellent biological activity but also holds positive significance for plant physiology and agricultural production.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10164-10169"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra00209e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749027","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":"Perylene dianhydride hydrogels obtained from accessible perylene diamic acid salts by a versatile protonation–hydrolysis mechanism†","authors":"Markus C. Kwakernaak, Marijn Koel, Peter J. L. van den Berg, Nicolaas Strik and Wolter F. Jager","doi":"10.1039/D5RA00372E","DOIUrl":"https://doi.org/10.1039/D5RA00372E","url":null,"abstract":"<p >Perylene dianhydride (PDA) hydrogels are made from highly accessible perylene diamic acid salts (PDAA salts) by a versatile protonation–hydrolysis mechanism. Very weak gels are formed initially by π-stacking of PDAAs and subsequent hydrolysis yields much stronger PDA hydrogels. Hydrogels are readily made at concentrations down to 0.5 mM, exhibit storage moduli around 600 Pa @ 1 mM and undergo significant syneresis in time.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10183-10187"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra00372e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749042","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":"Design and fabrication of nano-composite ceramic membranes for the adsorption of antibiotics from pharmaceutical wastewater†","authors":"Mohsen Moghimi Dehkordi, Soheila Hedayatikhah, Mina Haghmohammadi, Mozhgan Amiri Baramkohi, Ali Montazeri and Ali Aghababai Beni","doi":"10.1039/D5RA00414D","DOIUrl":"https://doi.org/10.1039/D5RA00414D","url":null,"abstract":"<p >Antibiotic contamination in pharmaceutical wastewater poses environmental and public health risks. This study synthesized a nanocomposite ceramic adsorbent from clay, cow bone powder (hydroxyapatite nanoparticles), and human hair for antibiotic removal. The adsorbent exhibited high mechanical strength (3.6 bar), chemical stability, and a large surface area (171.32 m<small>²</small> g<small>⁻¹</small>). Characterization (FTIR, XRD, FE-SEM, BET) confirmed successful nanoparticle incorporation. In a vertical fixed-bed column, optimal removal occurred at pH 7, 25 g adsorbent, 25 °C, and 40 min contact time. Adsorption was endothermic, following pseudo-first-order and intraparticle diffusion models. The adsorbent retained &gt;90% efficiency after 142 regeneration cycles, proving its durability and cost-effectiveness.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10227-10242"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra00414d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749045","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":"Catalytic application of a bimetallic–organic framework with phosphorus acid groups in the preparation of pyrido[2,3-d]pyrimidines via cooperative vinylogous anomeric-based oxidation†","authors":"Ali Reza Ataee-Najari, Milad Mohammadi Rasooll, Mahmoud Zarei, Mohammad Ali Zolfigol, Arash Ghorbani-Choghamarani and Mojtaba Hosseinifard","doi":"10.1039/D4RA08430F","DOIUrl":"https://doi.org/10.1039/D4RA08430F","url":null,"abstract":"<p >In this work, we prepared a bimetallic–organic framework (bimetallic-MOF) using Fe/Zr as metals. Subsequently, the bimetallic-MOF was functionalized with phosphorus acid groups to serve as a heterogeneous catalyst. The catalyst was characterized using various techniques, such as field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDS), infrared spectroscopy (FT-IR), X-ray diffraction analysis (XRD) and Brunauer–Emmett–Teller (BET) surface area analysis. Due to its suitable surface area and pore size, this heterogeneous catalyst was used for the preparation of pyrido[2,3-<em>d</em>]pyrimidine derivatives, achieving good yields (71–86%). Easy separation of the catalyst from the reaction medium, high yields, short reaction times and catalyst reusability are some of the characteristic advantages of multicomponent reactions.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10150-10163"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra08430f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749026","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":"From waste to energy storage: fabrication of shape-stabilized phase change composites using cellulose extracted from waste paper","authors":"Sahel Saberi, Golnoosh Abdeali and Ahmad Reza Bahramian","doi":"10.1039/D4RA07932A","DOIUrl":"https://doi.org/10.1039/D4RA07932A","url":null,"abstract":"<p >Organic phase change materials (PCMs) are promising for sustainable energy due to their high storage capacity, broad temperature control, and minimal volume change during phase transitions. However, their application is limited by low thermal conductivity and high leakage caused by volume instability. To address these issues, a shape-stabilizing approach using a nature-based and porous matrix of cellulose from recyclable resources, is proposed. In this study, a cellulose hydrogel-based composite was used as a support for encapsulating polyethylene glycol (PEG 2000) PCM, creating a phase change composite (PCC). Cellulose was extracted from waste newspaper (WP) through alkaline and peroxide treatments, achieving 16.5% efficiency and 78% purity. The cellulose was then used to synthesize different three-dimensional (3D) hydrogel networks with citric acid (CA) as the cross-linking agent. Carbon monofilaments (CFs) were incorporated into the hydrogels to enhance stability, reduce leakage, and improve thermal properties. The thermophysical and morphological characterization of the prepared system revealed that cellulose-based hydrogels were formed through esterification between cellulose hydroxyl groups and CA carboxyl groups. The leakage rate of the (cell-4/CF/PEG) PCC was measured as 4.25 wt% after 5 heating–cooling cycles. The latent heat of melting was similar to pure PEG 2000, with an energy storage capacity increase of 25%. Furthermore, the addition of CFs improved thermal conductivity (<em>k</em>) by 80% and achieved an enthalpy efficiency of 90%. The thermal diffusivity (<em>α</em>), specific heat capacity (<em>C</em><small>_p</small>), and effective thermal conductivity (<em>k</em><small>_eff</small>) of the (cell-4/CF/PEG) PCC were recorded as 8.2 × 10<small>⁻⁹</small> m<small>²</small> s<small>⁻¹</small>, 5400 J kg<small>⁻¹</small> °C<small>⁻¹</small>, and 0.027 W m<small>⁻¹</small> °C<small>⁻¹</small>, respectively.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10049-10073"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra07932a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749012","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 first-principles study of dynamically stable non-toxic photovoltaic Mg3PX3 (X = Cl and Br) compounds","authors":"Md. Bayjid Hossain Parosh, Md Saiduzzaman, Jahirul Islam, Nusrat Jahan Nisha and Istiak Ahmed Ovi","doi":"10.1039/D5RA01185J","DOIUrl":"https://doi.org/10.1039/D5RA01185J","url":null,"abstract":"<p >Inorganic, non-toxic halide perovskites have emerged as photovoltaic field breakthroughs because of their outstanding physical properties, which make them viable for sustainable energy systems. The structural properties along with electronic, mechanical and thermal properties of Mg<small>₃</small>PX<small>₃</small> (X = Cl, and Br) are evaluated by first-principles density functional theory (DFT) calculations executed <em>via</em> the CASTEP code employing GGA-PBE functional. The phonon dispersion results indicate that these compounds are dynamically stable because positive frequency readings show they would be suitable for experimental production. Structural and bandgap calculations required the dual use of hybrid HSE06 and GGA-PBE functionals to achieve better accuracy and resulted in 5.260 Å for Mg<small>₃</small>PCl<small>₃</small> and 5.478 Å for Mg<small>₃</small>PBr<small>₃</small>. The calculated bandgap values are 2.297 eV for GGA-PBE and 3.093 eV for HSE06 with Mg<small>₃</small>PCl<small>₃</small> and 1.506 eV for GGA-PBE and 2.187 eV for HSE06 with Mg<small>₃</small>PBr<small>₃</small>. The positive elastic constant C<small>₄₄</small> indicates structural stability in addition to unfavorable Cauchy pressure values that create brittle and rigid structural behaviors together with the Paugh's ratio and Poisson's ratio at low levels. The magnetic properties of Mg<small>₃</small>PX<small>₃</small> (X = Cl and Br) compounds create opportunities in quantum research because these compounds exhibit diamagnetic behavior. High thermal efficiency calculated by thermal analysis enables the materials to expand their functional capabilities. Experimentation demonstrates that Mg<small>₃</small>PX<small>₃</small> (X = Cl and Br) compounds show their exceptional optical characteristics and potential for superior photodetectors and UV protective materials. This research delivers essential knowledge about Mg<small>₃</small>PX<small>₃</small> (X = Cl and Br), which prepares the way for the upcoming experimental development of sustainable materials for energy technologies.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10085-10105"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra01185j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749014","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":"Expression of concern: A rhodamine–quinoline based chemodosimeter capable of recognising endogenous OCl− in human blood cells","authors":"Shyamaprosad Goswami, Sangita Das, Krishnendu Aich, Prasanta Kumar Nandi, Kakali Ghoshal, Ching Kheng Quah, Maitree Bhattacharyya, Hoong-Kun Fun and Hatem A. Abdel-Aziz","doi":"10.1039/D5RA90035B","DOIUrl":"https://doi.org/10.1039/D5RA90035B","url":null,"abstract":"<p >Expression of concern for ‘A rhodamine–quinoline based chemodosimeter capable of recognising endogenous OCl<small>⁻</small> in human blood cells’ by Shyamaprosad Goswami <em>et al.</em>, <em>RSC Adv.</em>, 2014, <strong>4</strong>, 24881–24886, https://doi.org/10.1039/C4RA03200D.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10190-10190"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra90035b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749044","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 highly selective colorimetric sensor of mercury(ii) ions and hydrogen peroxide by biosynthesized silver nanoparticles in water and investigations of the interaction between silver and mercury†","authors":"Md. Toufiqul Islam, Saurav Kumar Das, Md. Ahad Mahamud Nahim, Md. Rabiul Karim, Rumpa Kundu, Md. Abu Rayhan Khan, Shofiur Rahman, Mahmoud Al-Gawati, Abdullah N. Alodhayb and Habib Md. Ahsan","doi":"10.1039/D5RA01733E","DOIUrl":"https://doi.org/10.1039/D5RA01733E","url":null,"abstract":"<p >Silver nanoparticles (AgNPs) are promising for their exceptional properties for various applications. This study applied a facile and green method to synthesize AgNPs in an aqueous medium using <em>Averrhoa bilimbi</em> fruit extract as a reducing and stabilizing agent. The formation of AgNPs was confirmed by using UV-visible spectroscopy, X-ray diffraction pattern (XRD), and High-resolution transmission electron microscopy (HRTEM). The synthesized AgNPs consist of face-centered cubic crystals and exhibit homogeneous spherical morphology with an average size of 11 nm. Heavy metals like mercury contamination in water and food pose global health risks, leading to disability issues, even at trace levels. Beside, H<small>₂</small>O<small>₂</small> is a reactive oxygen species. Thus, elevated H<small>₂</small>O<small>₂</small> levels can harm cell membranes, proteins, and DNA in aquatic creatures, resulting in oxidative stress that may affect physiological processes. Therefore, there is an urgent need for effective monitoring and prevention. The synthesized AgNPs were utilized as a colorimetric probe for the detection of mercury (Hg<small>²⁺</small>) ions in water at room temperature and found to be highly sensitive and selective with a limit of detection (LOD) of 1.58 μM and a limit of quantification (LOQ) of 5.27 μM. Furthermore, the detection of Hg<small>²⁺</small> was unaffected in the presence of other pertinent metal ions. The prepared AgNPs probe can also enable detection of Hg<small>²⁺</small> with the naked eye. In addition, the AgNPs probe was investigated for detecting Hg<small>²⁺</small> ions in real water samples, which offered satisfying recovery rates ranging from 90.60 ± 2.60 to 96.73 ± 2.83%, confirming the probe's practicability. The capping agent stabilized on the surface of AgNPs can effectively pre-concentrate Hg<small>²⁺</small> ions through the chemical interaction between AgNPs and Hg<small>²⁺</small> ions to form Ag–Hg amalgam. This leads to a decrease in the SPR peak from AgNPs. The interaction between Ag and Hg was investigated using synchrotron radiation-induced X-ray photoelectron spectroscopy (SR-XPS). In addition, the AgNPs probe effectively detected hydrogen peroxide (H<small>₂</small>O<small>₂</small>) in an aqueous medium with a LOD of 3.21 μM and LOQ of 10.70 μM. This study aimed to develop a rapid, easy-to-use, eco-friendly, and reliable colorimetric sensor that may quickly identify dangerous pollutants in aqueous samples.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 13","pages":" 10074-10084"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra01733e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749013","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}