Arabian Journal of Chemistry最新文献

{"title":"Direct and accurate purity evaluation for isovanillin conversion to HMCA through aldol condensation by using RID and its comparison with UV detection","authors":"Canbiao Zeng ,&nbsp;Jine Lai ,&nbsp;Huiting Lin ,&nbsp;Guangying Ye ,&nbsp;Yongsheng Chen ,&nbsp;Feng Hu ,&nbsp;Zaihua Wang ,&nbsp;Rian Yan","doi":"10.1016/j.arabjc.2024.106054","DOIUrl":"10.1016/j.arabjc.2024.106054","url":null,"abstract":"<div><div>As an important intermediate of Advantame, 3-hydroxy-4-methoxy-cinnamaldehyde (HMCA) is derived from isovanillin by Aldol reaction. The HPLC-UV method was initially established in acetonitrile/water for the separation and quantification of two compounds. UV-chromophores rapidly reach plateauing effect and limit linear regression range below 1.00 mg/mL at UV 210,280 and 340 nm. HPLC-RID with wider range manner was established. The solubility assay of HMCA and isovanillin was investigated for working range limit for the RID under different mobile phase acetonitrile ratios. RID are sensitive enough as UV at micrograms level in methodology comparison. Wider working range and universal response of RID facilitate the purity evaluation. RID detection showed reliable and precise performance as UV in method precision, stability (as all RSDs &lt; 2 %), and similar recovery for accuracy (99.99–101.94 %). The proposed RID method was applied for purity evaluation by using area for direct calculation. The actual purity values had a high correlation with the RID area response directly, and the wavelength complexity resulted in diverse purity evaluations in UV method.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106054"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The application of magnetic nanoparticles based β-cyclodextrin as recoverable catalyst in various organic transformations: An overview","authors":"Sara Payamifar ,&nbsp;Majid Abdouss ,&nbsp;Ahmad Poursattar Marjani","doi":"10.1016/j.arabjc.2024.106080","DOIUrl":"10.1016/j.arabjc.2024.106080","url":null,"abstract":"<div><div>Magnetite nanoparticles (MNPs), owing to their vast surface area, low toxicity, and biocompatibility, present a lot of chemical and biotechnological uses. Over the past decade, extensive attention has been expended on applying Fe₃O₄ nanoparticles as magnetically reusable solid support for various transition metals. The benefits of magnetic nanocatalytics are their simple separation by an external magnet, extreme reactivity, and a vast surface area of the catalysts. Also, the magnetic features of these catalysts induce their dispersion to be reversibly controlled via the magnetic field. Therefore, MNPs can be dispersed well in the reaction media. β-Cyclodextrin (β-CD), as a cyclic oligomer, has been extensively employed as an economical and eco-friendly alternative catalyst in diverse organic conversions that improved reaction efficiency. The modified β-CD with Fe₃O₄ led to mainly advantageous catalysts because of their helpful catalytic properties, eco-friendliness, easy separation, and ability to isolate from the reaction medium. In this report, our goal is to present an overview of magnetically reusable nanoparticles-based β-CD. This review’s major focus is the application of magnetic nanomaterials as catalysts in different organic transformations.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106080"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elucidating the formation mechanism of gardenia blue pigment from amino acid and genipin","authors":"Xiaoyu Zhang ,&nbsp;Ruihu Zhang ,&nbsp;Rui Li ,&nbsp;Jiaxing Zhang ,&nbsp;Yuefei Wang ,&nbsp;Xin Chai ,&nbsp;Yuefei Wang","doi":"10.1016/j.arabjc.2024.106048","DOIUrl":"10.1016/j.arabjc.2024.106048","url":null,"abstract":"<div><div>Gardenia blue (GB), a natural active blue pigment, can be synthesized from iridoid glycosides and primary amino-containing compounds <em>in vivo</em> and <em>in vitro</em>. However, limited studies have reported about GB synthetic intermediates, leading to unawareness of the formation mechanism of GB. Here, we reported that GB could be detected in rats′ feces, whose formation was simulated by <em>in vitro</em> reaction of amino acid-rich feces extract from rats and genipin (GP) metabolized from geniposide (GE) through <em>β</em>-glucosidase. Firstly, we proved that 14 amino acids (AAs) detected in rats′ feces containing primary amino groups can react with GP to produce GB. Then, taking histidine (His) as example, we characterized the key intermediates during the reaction process, including basic units genihistidine A (GH-A) and dimers. As an active basic unit, GH-A underwent covalent polymerization to form dimer, which then self-assembled into supramolecular spherical nanoparticles through multiple noncovalent interactions, including hydrogen bonds, π-π interactions, and van der Waals interactions. Our study revealed the formation mechanism of GB and provided insights into the bioavailable form of GE from traditional Chinese medicine <em>in vivo</em>.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106048"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetoplasmonic core–shell structured Ag@Fe3O4 particles synthesized via polyol reduction process rendering dual-functionality for bacteria ablation and dyes degradation","authors":"Qing Shen ,&nbsp;Luping Zhang ,&nbsp;Yuan Zhao ,&nbsp;Xiaobing Han ,&nbsp;Jie Gao ,&nbsp;Yuesheng Li ,&nbsp;Xiaoming Zhu ,&nbsp;Tian Liang ,&nbsp;Tao Chen","doi":"10.1016/j.arabjc.2024.106058","DOIUrl":"10.1016/j.arabjc.2024.106058","url":null,"abstract":"<div><div>The Ag nanoparticles demonstrate potent bacteria eradication capabilities; however, their tendency to aggregate in aqueous solutions compromises the antibacterial efficacy. Furthermore, the Ag nanoparticles employed in sewage treatment are challenging to recycle, resulting in environmental pollution and resource wastage. Herein, the Ag-core Fe₃O₄-shell structured particles (Ag@Fe₃O₄) are synthesized by leveraging the reduction potential difference between Ag⁺/Ag⁰ and Fe³⁺/Fe²⁺ through a one-step polyol reduction process. The Fe₃O₄ shell in the Ag@Fe₃O₄ composite not only effectively inhibits the agglomeration of Ag, but also enhances the penetration capability of the composite into biofilms, thereby enabling Ag@Fe₃O₄ to possess remarkable antibacterial efficacy against Escherichia coli (<em>E. coli</em>). The Ag@Fe₃O₄ demonstrates nearly 100 % inhibition of <em>E. coli</em> at a concentration of 0.24 mg mL⁻¹ (with an Ag content of 0.042 mg mL⁻¹) while still maintaining antibacterial effectiveness of 74.6 % even after undergoing reutilization for 10 cycles. Meanwhile, due to the excellent electron conductivity of Ag and the effective adsorption capability of Fe₃O₄ shell towards organic dyes, Ag@Fe₃O₄ facilitates rapid electron transfer to organic dyes and further lead to their reduction and degradation in the presence of NaBH₄. The Ag@Fe₃O₄ can catalytically degrade various organic dyes (including Rhodamine B, Rhodamine 6G, and Methylene blue) within only 15 min, while achieving an impressive degradation efficiency exceeding 90.9 % after 6 cycles of reutilization. The cost-effectiveness (approximately $0.17 per gram), facile magnetic recovery, along with the superior antibacterial and dye-degradation performance showcase the significant potential of Ag@Fe₃O₄ for medical applications and sewage treatment.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106058"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MXene-based materials as adsorbents, photocatalysts, membranes and sensors for detection and removal of emerging and gaseous pollutants: A comprehensive review","authors":"Mohammad Hadi Dehghani ,&nbsp;Nadeem Hussain Solangi ,&nbsp;Nabisab Mujawar Mubarak ,&nbsp;Natarajan Rajamohan ,&nbsp;Subrajit Bosu ,&nbsp;Amina Othmani ,&nbsp;Md. Ahmaruzzaman ,&nbsp;Soumya Ranjan Mishra ,&nbsp;Baishali Bhattacharjee ,&nbsp;Vishal Gadore ,&nbsp;Talib Hussain Banglani ,&nbsp;Nawab Waris ,&nbsp;Ali hyder ,&nbsp;Ayaz Ali Memon ,&nbsp;Khalid Hussain Thebo ,&nbsp;Payal Joshi ,&nbsp;Grzegorz Boczkaj ,&nbsp;Rama Rao Karri","doi":"10.1016/j.arabjc.2024.106052","DOIUrl":"10.1016/j.arabjc.2024.106052","url":null,"abstract":"<div><div>2D materials have garnered significant attention as potential solutions to various environmental challenges. Graphene, molybdenum disulfide, MXenes, and boron nitride have emerged as the most popular candidates among these materials. This article presents a comprehensive review and discussion on the emerging applications of MXenes in environmental engineering. MXenes have demonstrated immense potential as future materials for adsorption purposes. They have proven to be highly effective in removing emerging pollutants (heavy metals and organic pollutants) through the adsorption phenomenon. The effectiveness of MXenes in removing lead (Pb²⁺), chromium (Cr⁶⁺), copper (Cu²⁺), uranium (U⁶⁺), and mercury (Hg²⁺) has been confirmed, with a sorption capacity ranging from 100 to 250 mg g⁻¹. Furthermore, MXenes have effectively removed several radionuclides, including uranium, europium, strontium, barium, and thorium. MXenes have proven to be highly efficient in treating water through adsorption in emerging organic pollutants, even for various organic dyes such as methylene blue, acid blue, congo red, methyl orange, and rhodamine B (RhB). Additionally, MXenes exhibit high treatment performance in adsorbing several pharmaceuticals like cloxacillin (CLX), ampicillin (AMP), amoxicillin (AMX), ciprofloxacin (CPX), amitriptyline (AMT), verapamil (VRP), carbamazepine (CBM), 17 α-ethinyl estradiol, ibuprofen (IBP), and diclofenac (DCF). Overall, MXenes offer several advantages, such as good conductivity, thermal performance, high surface area, and selectivity of intermolecular interactions. However, their application requires thoroughly evaluating their environmental impact and life cycle assessment.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106052"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Variations in metabolites content and bioactivity to regulate biomarkers of benign prostatic hyperplasia according to the growth stages of Sida rhombifolia","authors":"Min Gyu Park ,&nbsp;Yun Na Kim ,&nbsp;Jae sun Lee ,&nbsp;Yu Jung Kim ,&nbsp;Soo-Yong Kim ,&nbsp;Sangho Choi ,&nbsp;Min Hye Yang ,&nbsp;Bong-Oh Kwon ,&nbsp;Jung-Rae Rho ,&nbsp;Eun Ju Jeong","doi":"10.1016/j.arabjc.2024.106071","DOIUrl":"10.1016/j.arabjc.2024.106071","url":null,"abstract":"<div><div>It has been reported that the secondary metabolites produced by plants are influenced by genetic diversity and growth conditions, resulting in significant variations in chemical content even within the same species. In the previous study searching for bioactive materials from plants to improve benign prostatic hyperplasia (BPH), it was found that the methanolic extract of <em>Sida rhombifolia</em> in the family of Malvaceae exhibited the excellent inhibition on the expressions of 5-alpha reductase type 2 (5αR2) and androgen receptor (AR) in human prostate cells. In this study, we aimed to evaluate the change in the contents of major components of <em>S. rhombifolia</em> and the activity of improving BPH according to the growth stages of <em>S. rhombifolia</em>. Plant growth characteristics including plant height, stem diameter, leaf length, leaf width, and number of leaves were examined at intervals of approximately 15 days for 51 days. The contents of 20-Hydroxyecdysone and α-Ecdysone, the main constituents contained in <em>S. rhombifolia</em> on each day after transplantation (DAT) were analyzed using LC-ESI-MS/MS. The inhibitory activities of <em>S. rhombifolia</em> stems or leaves at each DAT on the expressions of AR, 5αR2, proliferating cell nuclear antigen (PCNA) and prostate specific antigen (PSA), were evaluated in human originated prostate cells, RWPE-1 and LNCaP cells activated by Testosterone propionate (TP). Considering the yield of the raw materials, the contents of metabolites, and the bioactivities, it was suggested that the appropriate collection period for <em>S. rhombifolia</em> as a bioactive material to improve BPH might be after 90 DAT.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106071"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of water on liquid ammonia-based sustainable dyeing of ramie fiber","authors":"Shaochen Li ,&nbsp;Qingyong Zhao ,&nbsp;Jianhua Xiong ,&nbsp;Nahid Pervez ,&nbsp;Lina Lin ,&nbsp;Yingjie Cai ,&nbsp;Vincenzo Naddeo","doi":"10.1016/j.arabjc.2024.106043","DOIUrl":"10.1016/j.arabjc.2024.106043","url":null,"abstract":"<div><div>Liquid ammonia dyeing emerges as an environmentally benign and sustainable option for the textile industry, characterized by a minimal ecological impact. However, its adoption is hampered by certain limitations, such as suboptimal dye exhaustion and issues with color uniformity, which present significant hurdles to its widespread industrial application. Building on the premise that the addition of water to an ethanol solvent can enhance reactive dye exhaustion in cotton fiber dyeing, this study delves into the dyeing behavior of ramie fiber using a water-liquid ammonia mixture with Reactive Red 195. The incorporation of water into the liquid ammonia solution was observed to marginally decrease the color strength (K/S value) of the dyed ramie fiber, compared to the dyeing with anhydrous liquid ammonia. This reduction is likely due to the diminished expansion of the amorphous regions within the fiber. However, the color levelness of the dyed ramie fiber was enhanced by the addition of water to the liquid ammonia. To decipher the influences on the dyeing process, the Taguchi method, utilizing an orthogonal array (L16), was applied. The analysis revealed that the dye mass factor was the predominant influencer (79.08 %), followed by the liquor ratio factor (18.53 %), with both factors demonstrating statistically significant effects (p &lt; 0.05). A multifaceted analysis of the samples was conducted using advanced techniques such as XRD (X-ray diffraction), FTIR (Fourier transform infrared), TGA (thermogravimetric analysis), and SEM (scanning electron microscopy). These analyses confirmed that the water-liquid ammonia treatment induced changes in the samples’ properties. The treated samples exhibited lower barium activity numbers and breaking force values, indicating structural alterations. Furthermore, the molecular structure of Reactive Red 195 remained intact throughout the dyeing process in the water-liquid ammonia mixture, thereby affirming its viability for practical applications in the textile industry.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106043"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing sponge-like activated carbon from Manihot esculenta tubers for high-performance supercapacitors","authors":"Markus Diantoro ,&nbsp;Nuviya Illa Muthi Aturroifah ,&nbsp;Joko Utomo ,&nbsp;Ishmah Luthfiyah ,&nbsp;Ida Hamidah ,&nbsp;Brian Yuliarto ,&nbsp;Andrivo Rusydi ,&nbsp;Worawat Meevesana ,&nbsp;Santi Maensiri ,&nbsp;Pramod K. Singh","doi":"10.1016/j.arabjc.2024.106068","DOIUrl":"10.1016/j.arabjc.2024.106068","url":null,"abstract":"<div><div>Activated carbon plays a crucial role in enhancing supercapacitor performance by optimizing parameters such as surface area, pore structure, and morphology. This study investigates activated carbon derived from <em>Manihot esculenta</em> tubers, which offers a promising, sponge-like porous morphology suitable for supercapacitor electrodes. Activated carbon derived from <em>Manihot esculenta</em> tubers was synthesized utilizing chemical activation with varying concentrations of potassium hydroxide (KOH) as the activator 0 M (C-S0), 1 M (AC-S1M), 2 M (AC-S2M), and 4 M (AC-S4M). The AC-S4M sample variant achieved the highest surface area (471.645 m²g⁻¹) and total volume (0.253 cm³g⁻¹). Electrochemical characterization using symmetric coin cell supercapacitors demonstrated excellent specific capacitance of 146.570 Fg⁻¹ at 0.1 Ag⁻¹ in a 6 M KOH aqueous electrolyte. Notably, the highest energy density of 15.525 Whkg⁻¹ at a power density of 174.660 Wkg⁻¹ was achieved. These results underscore the potential of <em>Manihot esculenta</em> tubers-derived activated carbon as a sustainable, high-performance electrode material, advancing environmentally friendly energy storage technologies, which remain interesting for further studies.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106068"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of baicalein and fangchinoline on abemaciclib metabolism in vivo and in vitro and molecular docking analysis","authors":"Xiaohai Chen ,&nbsp;Fengsheng Hong ,&nbsp;Hualu Wu,&nbsp;Yuxin Shen,&nbsp;Hailun Xia,&nbsp;Ren-ai Xu,&nbsp;Lu Shi","doi":"10.1016/j.arabjc.2024.106073","DOIUrl":"10.1016/j.arabjc.2024.106073","url":null,"abstract":"<div><div>The primary objective of this study was to investigate the effects of baicalein and fangchinoline on the metabolism of abemaciclib. We hypothesized that these two natural compounds could significantly affect the metabolism of abemaciclib by inhibiting the activity of the CYP3A4 enzyme, thus potentially increasing its concentration in the body. <em>In vitro</em>, rat liver microsomes (RLM) and human liver microsomes (HLM) were employed to explore the inhibitory effects and mechanisms of baicalein and fangchinoline on abemaciclib. <em>In vivo</em>, twelve healthy male Sprague-Dawley (SD) rats were randomly assigned to three groups: Group A (control group), Group B (baicalein), and Group C (fangchinoline). The concentrations of abemaciclib and its metabolite N-desethylabemaciclib (M2) were evaluated using ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). Finally, molecular docking method was employed to understand the interaction between abemaciclib and baicalein. It was indicated by the <em>in vitro</em> findings that both baicalein and fangchinoline inhibited abemaciclib metabolism in RLM through a mixed mechanism of competitive and non-competitive inhibition pathway. In HLM, baicalein inhibited abemaciclib metabolism by employing a hybrid mechanism of uncompetitive and non-competitive inhibition, while fangchinoline exhibited its inhibition in a competitive manner. <em>In vivo</em>, pharmacokinetic experiments revealed significant increases for AUC_(0-t) and AUC_(0-∞) of abemaciclib in Group B and Group C when compared to Group A, while the plasma clearance (CLz/F) of abemaciclib exhibited significant reductions. Moreover, molecular docking studies showed that both abemaciclib and baicalein docked to the active pocket of CYP3A4. This study demonstrated that the co-administration of baicalein or fangchinoline significantly affected the metabolism of abemaciclib, providing valuable insights for its clinical application.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106073"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultra-fine carbon decorated TiO2/C/g-C3N4 hybrid for strong physical adsorption and efficient photodegradation of pollutants","authors":"Azim Khan ,&nbsp;Ruhumuriza Jonathan ,&nbsp;Shafiq Ur Rehman ,&nbsp;Muhammad Shoaib ,&nbsp;Feng Cao ,&nbsp;Sajjad Ali ,&nbsp;Mohamed Bououdina ,&nbsp;Pir Muhammad Ismail ,&nbsp;Junwei Wang ,&nbsp;Hazem Abu-Farsakh ,&nbsp;Yifan Liu ,&nbsp;Xian Jian","doi":"10.1016/j.arabjc.2024.106034","DOIUrl":"10.1016/j.arabjc.2024.106034","url":null,"abstract":"<div><div>Enhancement in the visible light absorption and efficient interfacial charge transfer is crucial for optimizing photocatalytic efficiency in the degradation of pollutants such as methyl orange (MO) and formaldehyde. This study focuses on the properties of a TiO₂/C/g-C₃N₄ hybrid efficient photocatalyst, which is developed using an air calcination method to deposit graphitic nitride (g-C₃N₄) onto a carbon-modified TiO₂ surface. The characterization techniques, including high-resolution transmission electron Microscopy (HRTEM), X-ray diffraction (XRD), Raman spectroscopy, thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS), were used to provide a comprehensive understanding of the material’s structural, morphological, thermal, and chemical properties. This hybrid catalyst is specifically engineered for the efficient decomposition of methyl orange (MO) and formaldehyde, demonstrating a significant increase in photocatalytic activity. The TiO₂/C/g-C₃N₄ photocatalyst also exhibits an enhanced specific surface area of 181.2 m²/g, which facilitates increased physical adsorption and photo-catalytic active sites. Experimental results confirm that this catalyst effectively adsorbs MO physically even in the dark without degradation. Combining physical and photo-catalytic functions, this catalyst degrades 94 % of MO within 180 min with the initial concentration 0.2 mol/L of MO, and achieves almost 100 % decolorization of MO under visible light irradiation. Notably, the catalyst retains its high activity after 4 cycles of MO degradation, underscoring its durability and consistent performance. Additionally, the hybrid catalyst features a staggered type-II energy level configuration, which effectively enhances charge separation and boosts photocatalytic efficacy. The incorporation of an ultrafine carbon layer further augments electron mobility towards the surface, crucial for effective catalytic reactions. This study paves the way for future development of highly efficient photocatalytic materials for environmental purification.</div></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"18 1","pages":"Article 106034"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}