Chemical Physics Impact最新文献

{"title":"Dual purpose of graphene decorated with Cu3SnS4 as a counter electrode for dye sensitized solar cells and degradation of tetracycline antibiotics","authors":"A. Manimozhi ,&nbsp;T. Sumathi ,&nbsp;Sreeja Saravanan ,&nbsp;N. Dhachanamoorthi ,&nbsp;M. Saravanakumar ,&nbsp;Kaliyamurthy Jayaprakash","doi":"10.1016/j.chphi.2024.100779","DOIUrl":"10.1016/j.chphi.2024.100779","url":null,"abstract":"<div><div>This article describes the synthesis of a series of Cu₃SnS₄/graphene composites using a simple one-pot solvothermal technique. XRD, SEM, TEM, Raman, UV–visible absorption, PL, and N₂ adsorption-desorption isotherms characterised sample structure, morphology, optical characteristics, and porosity. XRD and TEM examinations show that Cu₃SnS₄ has a tetragonal crsyalline structure with spherical nanoparticles of 30–35 nm equally distributed over graphene sheets.. The band gap was determined to be 3.35, 3.12, 2.92, and 2.63 eV for Cu₃SnS₄, CSSG1, CSSG2, and CSSG5 CEs, respectively. CSSG5 CEs exhibits strong SSA (117.5 m²/g and 36.4 nm) and PS, which are about 2.2 times higher than those of pure Cu₃SnS₄ (52.3 m²/g and 13.4 nm). As a result, the DSSC equipped with Cu₃SnS₄/graphene (50 mg) nanocomposite CE achieved a power conversion efficiency (PCE) of 10.21 %, which was higher than that of using Cu₃SnS₄ nanoparticles (4.22 %) and comparable to the 5.91 % obtained with pure Pt CE as a reference. The nanohybrid structure of catalyst-active Cu₃SnS₄ nanoparticles established on electrically conducting 2D graphene sheets provides fast ion diffusion pathways, a large accessible surface area, and superb chemical and thermal stability, improving the electrode's performance. This research offers an alternative CE in non-Pt system materials and a better solution in other fields. Moreover, the CSSG5 sample showed high degradation percentage (95 %), rate constant (0.5612 min^-1) and long-term stability towards tetracycline (TC) under visible light irradiation.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"10 ","pages":"Article 100779"},"PeriodicalIF":3.8,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced photocatalytic degradation of LaMnO3/rGO nanocomposites under the irradiation of solar spectrum for methylene blue","authors":"Vaishali Misra ,&nbsp;Manisha Yadav ,&nbsp;Deepak Kumar ,&nbsp;Jehova Jire L. Hmar ,&nbsp;Vishal Singh ,&nbsp;Sanjeev Kumar Sharma","doi":"10.1016/j.chphi.2024.100775","DOIUrl":"10.1016/j.chphi.2024.100775","url":null,"abstract":"<div><div>This study presents the synthesis of pristine LaMnO₃ (LMO) perovskite nanoparticles (NPs) and LMO/rGO nanocomposites (NCs) incorporating 5, 10, and 20 wt.% of reduced graphene oxide (rGO) through an ultrasonicated sol-gel method. The structural, morphological, and optical properties were determined from X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), and UV-Vis spectroscopy. The microstructure and crystallite size of NCs were observed as hexagonal perovskite structures in the 23.4 - 20.1 nm range. The specific surface area of LMO NPs and LMO/rGO NCs were observed to be 6.63 m²/g and 21.39 m²/g, respectively. The photocatalytic activity of NCs was estimated to be responsible for methylene blue (MB) degradation under sunlight irradiation. The LMO/rGO10 NC showed the highest photocatalytic degradation with a degradation rate of 0.00927 min^-1 and the highest stability due to increased catalytic active sites. The LMO/rGO NCs hold the potential for the photocatalytic degradation of discharged dyes from textile industries under natural sunlight irradiation.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100775"},"PeriodicalIF":3.8,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of ordering of B’ site atom on the dynamical lattice properties of sustainable Sr2B′WO6 (B’= Co, Ni) double Perovskite","authors":"Neetu Malik ,&nbsp;Ruby Jindal ,&nbsp;Archana Tripathi ,&nbsp;Neeraj Kumari","doi":"10.1016/j.chphi.2024.100776","DOIUrl":"10.1016/j.chphi.2024.100776","url":null,"abstract":"<div><div>The wavenumbers of Raman and infrared spectra for environment friendly double perovskite Sr₂B′WO₆ (B’= Co, Ni) of I4/m phase (No.-87) has been analyzed using Wilson's GF matrix method. Theoretical assignments for the Raman and infrared wavenumbers for Sr₂CoWO₆ and Sr₂NiWO₆ compounds have been reported for the very first time. As far as we know, no theoretical assignments have been made for the infrared frequencies of Sr₂CoWO₆ and Sr₂NiWO₆ compounds in the I4/m phase. Both compounds are Lead-free oxide double perovskites which are emerging as a sustainable alternative to lead-based versions, offering similar electronic, optical, and magnetic properties without the associated environmental and health risks. A robust correlation with the B’ site has been identified across a range of frequencies, providing insights into the structural details of the examined compounds. The force constants related to the B’-site atom exhibit a consistent trend and reveal variations in values with changes in atomic orbitals. Moreover, frequencies influenced primarily by the B’ atoms display distinct characteristics with the variation of atomic number, emphasizing the considerable effect of the B’ atom's size on vibrational properties. The frequencies determined in this research align well with experimentally observed frequencies. Additionally, an exploration of potential energy distributions (PED) delves into the influence of interatomic forces on the computed Raman and infrared phonon modes for these materials.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100776"},"PeriodicalIF":3.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current Trends and Future Perspectives on ZnO-Based Materials for Robust and Stable Solar Fuel (H2) Generation","authors":"Mam Ishaku Dagareh ,&nbsp;Hafeez Yusuf Hafeez ,&nbsp;J. Mohammed ,&nbsp;Adamu David Gaima Kafadi ,&nbsp;Abdussalam Balarabe Suleiman ,&nbsp;Chifu Ebenezer Ndikilar","doi":"10.1016/j.chphi.2024.100774","DOIUrl":"10.1016/j.chphi.2024.100774","url":null,"abstract":"<div><div>Zinc oxide (ZnO) has been utilized for photocatalytic water splitting due to its excellent performance, low cost, non-toxicity, thermal stability, and chemical stability. However, despite these remarkable properties, ZnO has significant drawbacks, such as photocorrosion and an inability to utilize visible light due to its wide band gap of 3.3-3.4 eV. Structurally, ZnO exists in three different forms: rocksalt, cubic blende, and hexagonal wurtzite. It has been reported that the wurtzite structure produces more H₂ compared to its counterparts. Herein, we discuss several techniques for synthesizing zinc oxide and how incorporating zinc oxide nanoparticles with metal oxides, sulfides, and other materials can enhance its performance in the visible light region. Recently, integrating ZnO with TiO₂ –Ag using an S-scheme heterostructure boosted the H₂ activity rate to approximately 60.0 mmol/g/h, which is about 166 times superior to pristine ZnO. This improvement is attributed to the enhanced light absorption and charge transfer facilitated by Ag doping. This review examines ZnO-based photocatalytic H₂ generation via water splitting with different modification strategies and explores future outlooks for improving performance of ZnO.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100774"},"PeriodicalIF":3.8,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biogenic silver nanoparticles from Solanum trilobatum leaf extract and assessing their antioxidant and antimicrobial potential","authors":"M. Abareethan ,&nbsp;R. Sathiyapriya ,&nbsp;Marimuthu E. Pavithra ,&nbsp;S. Parvathy ,&nbsp;R. Thirumalaisamy ,&nbsp;T. Selvankumar ,&nbsp;Arunachalam Chinnathambi ,&nbsp;Hesham S. Almoallim","doi":"10.1016/j.chphi.2024.100771","DOIUrl":"10.1016/j.chphi.2024.100771","url":null,"abstract":"<div><div>Current study establishes synthesis of AgNPs from <em>Solanum trilobatum</em> by a simple microwave protocol. Major phytoconstituents such as solasodine, solanine, solanidine were present in the leaves extract of <em>Solanum trilobatum</em> were examined and explored by GC-MS analysis. In vitro anti-oxidant analysis of green synthesized AgNPs from <em>Solanum trilobatum</em> leaf extract using DPPH and ABTS assays reveals that IC50 values (14.10 µg/ml and 12.90 µg/ml) equipotent anti-oxidant activity with reference standard trolox IC50 values (9.10 µg/ml and 9.80 µg/ml) respectively. UV–Visible spectroscopy analysis of green synthesized AgNPs shown its maximal absorbance of at 420 nm, which affirms that green mediated synthesis of silver nanoparticles from <em>Solanum trilobatum</em>. The results of FT-IR spectral analysis showed that flavonoids, sterols, saponin alkaloids, terpenoids, and polysaccharides were existed in <em>Solanum trilobatum</em> aqueous plant leaf extract, which were responsible for the reduction and subsequent capping of AgNPs. X-ray diffraction method confirmed that silver nanoparticles have spherical crystals with face-centered cubic structure. Zeta potential spectroscopy revealed the stability of green synthesized silver nanoparticles. The results of the particle size analyzer confirm that the average size of the green-synthesised AgNPs is 50 nm. Scanning electron microscope images of green synthesized silver nanoparticles show the formation of spheres and stones. HR-TEM results further affirm that sphere size of AgNPs. Further green synthesized AgNPs screened for its anti-microbial potential against bacterial cultures of <em>E.coli</em> (MTCC 452)<em>, P. aeruginosa</em> (MTCC 1688)<em>, S. typhi</em> (MTCC 733) and <em>K. pneumonia</em> (MTCC 39) and their result revealed that zone of inhibition 19 ± 0.11, 17 ± 0.08, 13 ± 0.07 and 16 ± 0.11 mm respectively. Finally, the explored phytocompounds from <em>Solanum trilobatum</em> and standard drugs tetracyclin was screened against four clinical pathogen membrane target proteins reveals that excellent binding affinity with maximal docking score -9.4 kcal/mol by solasodine against target protein Klebsiella pneumonia AcrB with the BDM91288 efflux pump (PDB ID 8P1I). Significance of silver nanoparticles (AgNPs) synthesis from <em>Solanum trilobatum</em> offers significant antimicrobial and antioxidant benefits. Silver nanoparticles from <em>S. trilobatum</em> act as promising candidates for therapeutic applications, particularly in combating infections and oxidative damage in biomedical applications.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100771"},"PeriodicalIF":3.8,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent development on neem (azadirachta indica) biomass absorbent: Surface modifications and its applications in water remediation","authors":"Pragya Singh ,&nbsp;Shashank Sharma ,&nbsp;Kalpana Singh ,&nbsp;Pramod K. Singh ,&nbsp;Faisal Islam Chowdhury ,&nbsp;M.Z.A. Yahya ,&nbsp;S.N.F. Yusuf ,&nbsp;Markus Diantoro ,&nbsp;Famiza Abdul Latif ,&nbsp;N.B. Singh","doi":"10.1016/j.chphi.2024.100773","DOIUrl":"10.1016/j.chphi.2024.100773","url":null,"abstract":"<div><div>This review paper discusses the latest advances in transfiguring Azadirachta indica (neem) biomass into an adsorbent and how it can be used to clean the environment. As an economical and environmentally favorable adsorbent material, neem biomass has become increasingly popular due to its bioactive properties and abundance. The review breaks down modification techniques into chemical and physical processes. Important physical changes covered include preactivation, carbonization, and using fluidized bed technologies and rotary kilns. It has been shown that these methods greatly improve the surface properties of neem biomass, which makes it better at absorbing things and holding more. The changes that were made also have an effect on the adsorption kinetics and isotherms, which helps us understand the adsorption rates and equilibrium behaviors of the changed adsorbents better. Neem biomass adsorbents are illustrated through their versatility and efficacy in the removal of organic pollutants, dyes, and heavy metals from effluent. This is illustrated through specific applications. Additionally, computational studies and artificial intelligence are looked into to see if they can help us understand how adsorption works at the molecular level, improve the efficiency of modification processes, and guess how adsorption will behave. The review also talks about the research gaps and suggests areas for future research. The review emphasizes the crucial importance of integrating experimental and computational methods to enhance the performance of the modified neem biomass and increase its environmental cleaning potential.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100773"},"PeriodicalIF":3.8,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lead-free halide double perovskites for sustainable environmental applications","authors":"Ruby Jindal ,&nbsp;Archana Tripathi ,&nbsp;Chandra Mohan ,&nbsp;Alka Garg ,&nbsp;Rajender S. Varma","doi":"10.1016/j.chphi.2024.100770","DOIUrl":"10.1016/j.chphi.2024.100770","url":null,"abstract":"<div><div>The development of renewable energy sources has become a crucial objective in today's world due to increasing environmental concerns and the depletion of fossil fuels. Solar energy has emerged as a promising alternative. In recent years, there has been a significant focus on perovskite solar cells due to their remarkable power conversion efficiencies and their ability to be produced in a cost-effective manner. These cells have attracted considerable attention from researchers and industry professionals alike. However, traditional perovskite materials often contain toxic lead, raising concerns about their environmental impact and long-term sustainability. This article highlights the environmental concerns associated with lead-based perovskite materials and explores the advantages, challenges, and potential of lead-free halide double perovskites as sustainable alternatives for achieving an enlightening and sustainable future in the field of photovoltaics. Lead-free halide perovskites have been an area of active research in the field of nanotechnology and material science due to their potential for various applications. We provide an overview of perovskite solar cells as a promising technology, discussing their material properties and device performance. Furthermore, we present a comparative analysis between lead-based and lead-free perovskites, emphasizing the challenges and future perspectives associated with the development and implementation of lead-free alternatives. Through this analysis, we aim to shed light on the potential of lead-free halide double perovskites and inspire further research in the quest for environmentally friendly materials for solar energy applications.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100770"},"PeriodicalIF":3.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rational design of some 1,3,4 trisubstituted pyrazole-thiazole derivatives to serve as MtInhA inhibitors using QSAR, ADMET, molecular docking, MM-GBSA, and molecular dynamics simulations approach","authors":"Neha M. Mhetre ,&nbsp;Aniket L. Bhatambrekar ,&nbsp;D. Priya ,&nbsp;Venkatesan Saravanan ,&nbsp;Muthukumaradoss Kathiravan ,&nbsp;Krishna S. Shevate ,&nbsp;Kalirajan Rajagopal ,&nbsp;Kalyani D. Asgaonkar ,&nbsp;Trupti S. Chitre","doi":"10.1016/j.chphi.2024.100769","DOIUrl":"10.1016/j.chphi.2024.100769","url":null,"abstract":"<div><div>Using computational approaches, the potential efficacy and specificity of 1,3,4 trisubstituted pyrazole derivatives as <em>Mt</em>InhA inhibitors which will aid in rational drug design for tubercular therapy were forecasted. QSARINS software was used to investigate the ability of compound to inhibit <em>Mt</em>InhA. Three noteworthy descriptors with significant correlations and impressive statistical values were identified by the produced QSAR model: Correlation of coefficient(R²)= 0.8789, Cross-validation leave one out correlation coefficient (Q²LOO)= 0.8402, Cross-validation leave-many-out correlation coefficient(Q²LMO)=0.7321, Concordance Correlation Coefficient for cross-validation(CCC_tr)=0.9355, CCC_ext =0.888. The descriptor generated by the QSAR model includes Centered Broto-Moreau autocorrelation weighted by Sanderson electronegativities (ATSC1e), Radial distribution functions at 15.0 and 2.0 Å inter-atomic distances weighted by relative van der Waals volumes (RDF150v), Radial distribution function – 145/weighted by relative I-state (RDF145s). Using these, three descriptor model was developed and the designed compounds were evaluated for their <em>Mt</em>InhA inhibitory activity. Further, ADMET prediction and Molecular docking studies were carried out using Schrodinger's Software. ADMET prediction were used to evaluate drug likeliness and molecular docking was used to determine the interactions of designed compounds with the target protein. After the docking studies, the compounds were subjected for MM-GBSA calculations and MD simulation. Among the designed compounds, <strong>AP2</strong> had the strongest binding affinity towards the <em>Mt</em>InhA enzyme. The result of this work helps to understand the key interactions between 1,3,4 trisubstituted pyrazole derivatives and <em>Mt</em>InhA protein that may be necessary to develop new lead compounds against tuberculosis.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100769"},"PeriodicalIF":3.8,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Targeting the cyclin-dependent kinase family in anticancer drug discovery: From computational to experimental studies","authors":"Priyanka Solanki ,&nbsp;Shubhangi Sarwadia ,&nbsp;Mohd Athar ,&nbsp;Prakash C. Jha ,&nbsp;Anu Manhas","doi":"10.1016/j.chphi.2024.100768","DOIUrl":"10.1016/j.chphi.2024.100768","url":null,"abstract":"<div><div>Uncontrolled cell proliferation, primarily regulated by cyclin-dependent kinases (CDKs), is a critical driver of cancer progression, with dysregulation of CDKs contributing to various cancer types. CDKs have emerged as well-established targets for cancer therapy; however, traditional drug development methods have often proven to be time-consuming, challenging, and expensive. Recent advancements in CDK inhibitors (CDKIs) have shown immense clinical potential but many first-generation CDKIs face issues of non-selectivity and significant toxicity, limiting their clinical approval. To address these challenges, innovative computational approaches, particularly pharmacophore modeling, have the potential to streamline drug discovery. These methods can guide the selection of small molecules through target-specific structure-activity relationship (SAR) models and chemotypes screening across databases, thereby accelerating the identification of effective CDKIs. This review paper summarizes the latest developments on CDK inhibitors, highlights their structural features, and the methodologies (key databases &amp; software tools) that can provide further suggestions for future drug development.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100768"},"PeriodicalIF":3.8,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of green-synthesized carbon quantum dots from spent coffee grounds for EDLC electrode applications","authors":"Grishika Arora ,&nbsp;Nuur Syahidah Sabran ,&nbsp;Chiam-Wen Liew ,&nbsp;Chai Yan Ng ,&nbsp;Foo Wah Low ,&nbsp;Pramod K. Singh ,&nbsp;Hieng Kiat Jun","doi":"10.1016/j.chphi.2024.100767","DOIUrl":"10.1016/j.chphi.2024.100767","url":null,"abstract":"<div><div>This study investigates the green synthesis of carbon quantum dots (CQDs) from spent coffee grounds using a hydrothermal method, offering an eco-friendly, cost-effective, and straightforward approach to nanomaterial production. The synthesized CQDs, with particle sizes ranging from 1.6 to 4.4 nm, exhibited notable fluorescence, achieving quantum yields of 37.0 %, 54.3 %, and 63.3 % depending on the coffee source. Characterization technique, including XRD, FTIR, SEM, TEM, and BET, confirmed their structural suitability of these CQDs for energy storage applications. Their electrochemical performance was evaluated through cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). Among the CQDs tested, those derived from spent <em>Liberica</em> coffee ground (medium roasted) demonstrated superior performance, with a discharging specific capacitance of 97.5 F/g, an energy density of 4.3 Wh/kg, and a power density of 130.6 W/kg at a current density of 0.5 A/g. Additionally, they exhibited acceptable internal resistance (<em>R</em>_a = 0.01 kΩ and <em>R</em>_ab = 16.9 kΩ), indicating favourable charge transfer characteristics. These results underscore the enhanced energy storage potential of CQDs derived from spent coffee grounds. The findings not only highlight the excellent electrochemical performance but also support the viability of biomass waste as a valuable resource for advanced energy storage applications, promoting sustainable, eco-friendly technologies.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100767"},"PeriodicalIF":3.8,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}