Journal of Saudi Chemical Society最新文献

{"title":"Ultrasound probe-assisted fabrication of 2,3-disubstituted quinazoline-4(3H)-one framework in the existence of SiO2-decorated nano-scale TiO2 composite and investigating their antibacterial attributes via molecular docking simulations","authors":"Mohammad Reza Farhang,&nbsp;Manuchehr Fadaeian,&nbsp;Gholam Reza Najafi,&nbsp;Mahboubeh sadat Sharif","doi":"10.1016/j.jscs.2024.101942","DOIUrl":"10.1016/j.jscs.2024.101942","url":null,"abstract":"<div><div>SiO₂-decorated nano-scale TiO₂ composites have been fabricated via hydrothermal technique (high temperature and pressure) as a robust catalyst. The proposed catalyst was characterized to confirm its structure and composite using characteristics tests. 2,3-disubstituted quinazoline-4(3H)-one framework has been successfully prepared through two paths: reflux and probe ultrasound irradiation (US-probe, 40 W). The efficiency of the two various techniques was comparatively studied on the fundamental properties of the proposed catalyst. According to the obtained results, the US-probe method (due to the cavitation effect) provides favorable reaction conditions (saving energy and time). In this comparative study, SiO₂-decorated nano-scale TiO₂ composites were selected and used as a heterogeneous catalyst in a US-probe-assisted multicomponent reaction of isatoic anhydride, various aryl aldehydes, and amine components (aryl amines, aliphatic amines, and ammonium acetate). In the following, a variety of pharmaceutical 2,3-disubstituted quinazoline-4(3H)-one derivative were prepared under US-probe conditions and obtained excellent yield (90–97 %) within short reaction time (up to 10 min) due to substantial synergic effect between US-probe and SiO₂-decorated nano-scale TiO₂ composites. Besides, chemical/thermal stability, eco-friendliness, and recoverability of the catalyst (7 runs) are other outstanding advantages of this research. Using the drug design approach and computational chemistry, the antibacterial attributes of prepared products were finally perused and checked. All synthesized products have a molecular mass of less than 500 g/mol. Computational chemistry data revealed that prepared products bind well to the agonist at the active site of the P37432 protein (docking score between −5.044 and −3.625), which shows within the inactivation of this protein throughout ailment therapy. According to this, it was found that the prepared products will have the potential to become an antibacterial drug.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101942"},"PeriodicalIF":5.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554678","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":"Recent developments in carbon nitride for enhanced photocatalytic carbon dioxide reduction: A review","authors":"Tehmeena Ishaq ,&nbsp;Rabia Naeem ,&nbsp;Ayesha Qayyum ,&nbsp;Maryam Yousaf ,&nbsp;Zainab Ehsan ,&nbsp;Aamal A. Al-Mutairi ,&nbsp;Ali Irfan ,&nbsp;Sami A. Al-Hussain ,&nbsp;Rab Nawaz ,&nbsp;Magdi E.A. Zaki","doi":"10.1016/j.jscs.2024.101956","DOIUrl":"10.1016/j.jscs.2024.101956","url":null,"abstract":"<div><div>In recent years, carbon dioxide removal has been a hot topic due to increased global warming, and photocatalytic reduction of CO₂ can be the best stratagem to reduce its concentration. Among many catalysts, graphitic carbon nitride (g-C₃N₄) can be the best choice for CO₂ removal due to its promising band gap and superior physicochemical stability. The current review explains the thermodynamics of CO₂ removal and benchmarks the essential requirements for its improved kinetics. It further highlights recent developments in the g-C₃N₄-based catalysts, which include morphological adjustments, heterojunctions, defect engineering, doping, and composite fabrication. Moreover, the impact of metal oxides and sulfides on band structure and the catalytic behavior of g-C₃N₄ is demonstrated. In summary, this review article provides an in-depth analysis of the various endeavors made to improve the photocatalytic tenders of the g-C₃N₄ for enhancing its CO₂ removal activity and can be a worthwhile addition to the literature for its great ideas to address environmental pollution in terms of CO₂ reduction.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101956"},"PeriodicalIF":5.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129057","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":"Bimetallic NiAg supported on aminopropyl-functionalized periodic mesoporous organosilica as a reusable catalyst for CO2 conversion to value-added chemicals","authors":"Iman Abdullah,&nbsp;Patrik Chandra,&nbsp;Yuni Krisyuningsih Krisnandi","doi":"10.1016/j.jscs.2024.101954","DOIUrl":"10.1016/j.jscs.2024.101954","url":null,"abstract":"<div><div>Transforming CO₂ into more valuable chemicals has gained great interest due to greenhouse gas and climate change related issues. In this study, we performed CO₂ hydrogenation using a bimetallic nickel-silver catalyst supported on periodic mesoporous organosilica (NiAg/NH₂-pr-Ph-PMO). The NH₂pr-Ph-PMO was prepared via a co-condensation method, and NiAg was was incorporated using a simple wet impregnation process. Physicochemical properties of the catalyst were thoroughly characterized using FTIR, XRD, SEM-EDX, TEM, and BET-BJH. The synthesized NiAg/NH₂pr-Ph-PMO exhibited excellent properties, including a large surface area (793.5 m²/g) and uniform metal distribution. The optimal conditions for CO₂ hydrogenation found in this study were 225 °C, 2 bar, and a CO₂/H₂ ratio of 1:5. Under these conditions, conversion of CO₂ reached 38.34 % with 86.89 % selectivity towards formaldehyde production. Furthermore, NiAg/NH₂pr-Ph-PMO exhibits fine catalytic stability with the CO₂ conversion maintained above 35 % after 4 reaction cycles. FTIR analysis indicates no significant structural damage on the used catalyst, highlighting its robustness. This study showcases the excellent performance of the novel catalyst in converting CO₂ into more valuable chemicals.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101954"},"PeriodicalIF":5.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129054","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":"Facile hydrothermal synthesis of melamine-based polymers for photocatalytic hydrogen evolution","authors":"Yunyan Wu ,&nbsp;Ting Tan ,&nbsp;Caihong Song ,&nbsp;Xing Liu","doi":"10.1016/j.jscs.2024.101955","DOIUrl":"10.1016/j.jscs.2024.101955","url":null,"abstract":"<div><div>Solar photocatalytic hydrogen evolution from water splitting has been recognized as a promising hydrogen production technology, the development of efficient, cheap, and practical new photocatalysts is the key to realizing this technology. Compared with semiconductor photocatalysts, polymeric photocatalysts have emerged due to their high structural diversity and adjustable band gaps. The synthesis process of the polymeric photocatalysts is generally complicated, and the reaction conditions are also harsh (such as oxygen free, using catalyst). In this work, melamine-based polymers (MP-1 and MP-2) were synthesized by a simple one-step hydrothermal method using melamine (MA) and <em>p</em>-phthalaldehyde (PPA) as precursors under air atmosphere without any additives. MP-1 and MP-2 display photocatalytic H₂ evolution from water splitting in the presence of Pt as a co-catalyst and TEOA as a sacrificial hole scavenger. The effect of different structure of polymers on photocatalytic H₂ evolution was discussed. The hydrogen evolution rate of MP-1 is 1784.2 umol·h⁻¹·g⁻¹, distinctly higher than that of MP-2 (1139.8 umol·h⁻¹·g⁻¹). The separation and migration of photoinduced carriers for MP-1 and MP-2 were investigated by electrochemical measurements and PL. It is thought that the imine (–C = N–) structure of MP-1 has a good conjugated system, which could generate more photoinduced electron-hole pairs under light excitation, and the charge migration is also more facile, compared with the aminal structure (–N–C–N–) of MP-2. This study is expected to contribute toward the development of “green hydrogen” using solar photocatalysis over synthetically facile polymeric photocatalysts.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101955"},"PeriodicalIF":5.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757466","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":"Enhanced antibacterial testing and latent fingerprint detection using dichlorofluorescein-doped carbon dots","authors":"Aphinya Thinthasit ,&nbsp;Elvaro Islami Muryadi ,&nbsp;Syamsun Jaya ,&nbsp;David Nugroho ,&nbsp;Saksit Chanthai ,&nbsp;Rachadaporn Benchawattananon","doi":"10.1016/j.jscs.2024.101952","DOIUrl":"10.1016/j.jscs.2024.101952","url":null,"abstract":"<div><div>This research presents an innovative multifunctional reagent consisting of dichlorofluorescein-doped carbon dots (CDs-DC) generated from fresh coconut water by a hydrothermal method. This work’s innovation resides in the simultaneous application of CDs-DC for latent fingerprint detection on nonporous surfaces and improved antibacterial efficacy. The incorporation of dichlorofluorescein into the CDs matrix enhances photoluminescent characteristics and improves antibacterial effectiveness against Gram-positive and Gram-negative bacteria (<em>Escherichia coli</em>, <em>Serratia marcescens</em>, <em>Bacillus megaterium</em>, <em>Staphylococcus aureus)</em>. The addition of a starch matrix significantly strengthened this combination, enhancing the adherence and recognition of complex fingerprint patterns under UV light. Furthermore, the CDs-DC demonstrated significant reactive oxygen species (ROS) production, enhancing their antibacterial efficacy. This dual-functional device represents a notable progression in forensic science and antibacterial technology, establishing itself as a sustainable and highly efficient instrument for these purposes.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101952"},"PeriodicalIF":5.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658840","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":"UV-light-induced photocatalytic degradation of organic pesticides in agricultural soils with Fe2O3 and H2O2","authors":"Amal BaQais ,&nbsp;Mohamed H. El-Saeid ,&nbsp;Mashael Alshabanat","doi":"10.1016/j.jscs.2024.101953","DOIUrl":"10.1016/j.jscs.2024.101953","url":null,"abstract":"<div><div>Organic pesticides pose significant concerns as primary sources of soil contamination in agricultural areas, and their potential to bioaccumulate in humans through the consumption of contaminated crops adds to the urgency of addressing this issue. This study looks at 18 different types of pesticides found in natural soil samples from farming areas. The pesticides are divided into four groups: organochlorines (OCP), organophosphorus (OPP), carbamates (Carb), and pyrethroids (Pyrth). The study investigates how the five most common pesticides (Atrazine, Chlorpyrifos methyl, Dimethoate, Heptachlor, and Methomyl) degrade when exposed to UV radiation at a wavelength of 306 nm, with or without 0.5 % Fe₂O₃ and 0.5 % H₂O₂ photocatalysts. The results demonstrate complete photolysis of all pesticides over irradiation periods ranging from 26 to 96 h under UV radiation. It is notable that by incorporating Fe₂O₃ and H₂O₂, the degradation of pesticides was enhanced significantly compared to photolysis alone, achieving complete photocatalytic degradation within 8–11 h of irradiation. It is worth mentioning that Fe₂O₃ + H₂O₂ exhibits superior photocatalytic efficiency compared to Fe₂O₃. Furthermore, the highly toxic and persistent organochlorine heptachlor was successfully degraded in soil within 5 h using the Fe₂O₃ + H₂O₂ photocatalyst. The research provides a comprehensive understanding of the intricate mechanisms underlying the photocatalytic deterioration of these pesticides. This study offers valuable insights for designing effective UV-light-driven photocatalysts for environmental remediation.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101953"},"PeriodicalIF":5.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748643","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":"Development and assessment of vanadium-based metal–organic frameworks for the effective elimination of hazardous pesticides from aqueous solutions: Mechanism of uptake, adsorption capacities, rate of uptake, and enhancement via the Box-Behnken design","authors":"Abeer Abdulaziz H. Bukhari","doi":"10.1016/j.jscs.2024.101949","DOIUrl":"10.1016/j.jscs.2024.101949","url":null,"abstract":"<div><div>Vanadium metal–organic frameworks (V-MOF) has a great potential to remove contaminants from water that come from agriculture wastewater methyl parathion (MP) pesticides with high effectiveness. Using a variety of methods, such as SEM, FT-IR, XPS), XRD, and BET analysis, the adsorbent was successfully synthesized and characterized. The dimensions of the pores measured at 1.33 nm correspond to the classification of micropores under the IUPAC system. Before the adsorption process, the material had a surface area of 1489.42 m²/g and a pore volume of 0.98 cc/g. After MP adsorption, the surface area, pore size, and pore volume decreased to 1268.42 m²/g, 1.12 nm, and 0.64 cc/g, respectively. Changes in the material’s physical properties indicate that the adsorption process had an effect. 7.2 was the result of controlling the point of zero charge through surface characterization. This information suggests that the surface of the adsorbent has a positive charge at pH below 7.2 and at the pH higher than this value the surface will have a negative charge. It was also looked into how pH affected the adsorption equilibrium. Although fitting to Langmuir isothermally, the kinetics of MP adsorption onto V-MOF are pseudo-second-order fitting. It is very probable that chemisorption was the mode of adsorption because the adsorption energy was 23.62 kJ.mol⁻¹. The enthalpy (ΔH^o) values obtained as a result of studying the thermodynamic parameters are positive, demonstrating that, within this temperature range, the pesticide adsorption process was endothermic., measuring 32.79 kJ.mol⁻¹. Entropy (ΔS^o) readings that are positive indicate that the system’s randomness increased during the adsorption process, reaching 119 J.mol⁻¹K⁻¹, and with rising temperatures, the negative of ΔG^o rise. The effectiveness of the recommended adsorbent was evaluated by filtering wastewater samples in a laboratory environment. It is hypothesized that V-MOF and MP will interact by pore filling, π-π interaction, H-bonding, electrostatic contact, and other possible methods. Considering the specifics of this interaction in great detail is essential to comprehending the nature of adsorption and effectively constructing the adsorbent for use in real-world applications. Water filtering and the treatment of industrial effluents were made simple and effective by the use of V-MOF adsorbent technology. The results indicated that 383.6 mg/g was the maximal adsorption capacity at pH = 6. To evaluate the renewal of the adsorbent, more tests were carried out, and the outcomes showed that the renewal continued even after more than six cycles. The stability of the adsorbent during regeneration was confirmed by using XRD and FT-IR. The Box Behnken design (BBD) was then employed to optimize the adsorption outcomes.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101949"},"PeriodicalIF":5.8,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441974","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":"Novel and reusable magnetic MOF nanocomposite coupled ionic liquid-promoted efficient chemical fixation of CO2 into α-alkylidene cyclic carbonates","authors":"Yu Lin Hu,&nbsp;Yan Hui Lei,&nbsp;Yu Tao Zhang","doi":"10.1016/j.jscs.2024.101950","DOIUrl":"10.1016/j.jscs.2024.101950","url":null,"abstract":"<div><div>Carbon dioxide as a C1 building block to synthesize α-alkylidene cyclic carbonates is an environmental and sustainable approach. In this work, we designed and synthesized a type of multifunctional magnetic MOF nanocomposite catalysts, which could realize the carboxylic cyclization of CO₂ and propargylic alcohols into α-alkylidene cyclic carbonates under solvent-free conditions. Among all the prepared nanocomposites, the MnFe₂O₄@SiO₂@Cu-MOF nanocomposite is the best in catalytic activity combined with the tetrabutylphosphonium acetate ([Bu₄P]OAc) ionic liquid cocatalyst. The catalytic system MnFe₂O₄@SiO₂@Cu-MOF/[Bu₄P]OAc displayed excellent performance in catalyzing the carboxylic cyclization of CO₂ and different propargylic alcohols, and a series of α-alkylidene cyclic carbonates were obtained in high to excellent yields (88 ∼ 98 %) under mild reaction conditions (0.2 MPa, 35 °C). In addition, the two-component catalytic system had high stability and reusability, and can be easily separated and reused up to six consecutive cycles without considerable decrease in catalytic activity. Moreover, using the ionic liquid [Bu₄P]OAc as the cocatalyst, the nanocomposite had good substrate adaptability for the catalytic carboxylic cyclization, which opens interesting prospects for the development of new magnetic MOF nanocomposites as efficient heterogeneous catalysts for the chemical transformation of CO₂ into value-added chemicals.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101950"},"PeriodicalIF":5.8,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441972","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":"Continuous processing of JP-10 production: Hydroisomerization of endo-tetrahydrodicyclopentadiene to exo-tetrahydrodicyclopentadiene using a novel bimetal catalyst of Ba/Se supported on TiO2/SO4","authors":"P. Jayapradha ,&nbsp;P. Tamizhdurai ,&nbsp;C. Kavitha ,&nbsp;V.L. Mangesh ,&nbsp;Ashma Abubakker ,&nbsp;S. Jayakumar ,&nbsp;P. Saravanan ,&nbsp;Krishna Kumar Yadav ,&nbsp;Maha Awjan Alreshidi ,&nbsp;Sultan Alshehery ,&nbsp;Haifa A. Alqhtani ,&nbsp;May Bin-Jumah","doi":"10.1016/j.jscs.2024.101951","DOIUrl":"10.1016/j.jscs.2024.101951","url":null,"abstract":"<div><div>High-energy-density liquid fuels can be utilized as an energetic supplement to conventional fuels and are essential for volume-limited aerospace vehicles to boost payload and flying range. JP-10 has attracted much attention because of its high density, flash point, high volumetric heat, and low freezing point. Here we report the hydroisomerization of <em>endo</em>-tetrahydrodicyclopentadiene to <em>exo</em>-tetrahydrodicyclopentadiene (the main component of JP-10) was investigated over the TiO₂/SO₄ supported Ba(10 %)/Se(5–20 %) catalysts. This work aims to examine changes in continuous processing settings to maximize <em>exo</em>-THDCPD production, selectivity, and conversion. It was discovered that the synthesized TiO₂/SO₄/Ba(10 %)/Se(5–20 %) heterogeneous catalysts were novel, more effective, affordable, environmentally friendly, and simple to produce. The catalyst’s physicochemical characteristics were examined using FT-IR, BET, XRD, HR-SEM, HR-TEM, TGA and NH₃-TPD. The produced TiO₂/SO₄/Ba(10 %)/Se(5–20 %) nano-catalysts have good catalytic activity and a wide range of active Lewis and Brønsted acid sites. Evaluation of the isomerization of <em>endo</em>-THDCPD to <em>exo</em>-THDCPD was conducted in a high-pressure fixed-bed continuous reactor operating at 200 °C, 20 bar of pressure, and 4.0mol/h of H₂ flow rate. According to the investigations, the synthesized catalyst with a 15 % Se load performs exceptionally well, exhibiting 100 % conversion, 98.5 % selectivity, and 98.5 % yield at an H₂ flow rate of 10 ml/min. The isomerized product is used in Jet Propellant-10, a high-density fuel. Under ideal circumstances, <em>exo</em>-THDCPD with a high degree of purity (&gt;98 wt%) was produced without the need for any sort of separation technique.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101951"},"PeriodicalIF":5.8,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531785","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":"Enhanced thermal stability photophysical properties of photoselective PMMA/ITO nanohybrid films for greenhouse cooling in hot climates","authors":"Mohammed Alyami ,&nbsp;Samah El-Bashir","doi":"10.1016/j.jscs.2024.101945","DOIUrl":"10.1016/j.jscs.2024.101945","url":null,"abstract":"<div><div>The current research proposed innovative photoselective greenhouse cooling films made from PMMA/ITO nanohybrids, incorporating varying concentrations of Indium tin oxide nanocrystals (ITO NCs) and the fluorescent organic dye Lumogen F Red300, utilizing the solvent casting method. The morphology and structure were examined using transmission electron microscopy (TEM) and X-ray diffraction (XRD), demonstrating good homogeneity and amorphous nature. The impact of different ITO NC concentrations on physical properties was examined through differential scanning calorimetry (DSC), optical absorption, transmission, reflection, fluorescence, and Fourier transform infrared (FT-IR) spectroscopy. Integrating ITO NCs into the PMMA matrix showed enhanced thermal insulation capabilities of PMMA films while maintaining their transparency to photosynthetically active radiation (PAR). Maintaining this balance is crucial because it enables the films to selectively filter and reflect infrared radiation leading to lower greenhouse temperatures while still allowing the essential light needed for plant growth to pass through. This research is particularly significant for Sustainable Development Goals (SDGs) 2 and 13, especially in hot, water-scarce regions, as it protects plants from thermal stress, promotes growth, and supports food security in developing countries.</div></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 6","pages":"Article 101945"},"PeriodicalIF":5.8,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142421993","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}