Optical MaterialsPub Date : 2024-10-16DOI: 10.1016/j.optmat.2024.116280
Moayad Husein Flaifel , M.H.A. Mhareb
{"title":"Exploring the diverse modifiers influence on the structural, physical, and mechanical properties of a zinc oxide-based boro-tellurite glass system for enhancing radiation shielding performance","authors":"Moayad Husein Flaifel , M.H.A. Mhareb","doi":"10.1016/j.optmat.2024.116280","DOIUrl":"10.1016/j.optmat.2024.116280","url":null,"abstract":"<div><div>This work is meant to fabricate zinc boro-tellurite (ZnO–TeO<sub>2</sub>–B<sub>2</sub>O<sub>3</sub>) glass systems with various modifiers, including MoO<sub>3</sub>, Bi<sub>2</sub>O<sub>3</sub>, and PbO, using the melt quench technique. Four glass samples were produced, each comprising 20 % of a specific modifier from the total weight percent of the neat glass system. Each glass sample is given a code: TBZn, TBZMo, TBZBi, and TBZPb. The XRD results showed an amorphous nature for all glass samples. The FTIR results showed the functional groups for borate and tellurite oxide. The mechanical properties were reduced when different oxides were added instead of ZnO. For example, Young's modulus decreased for glass samples; their recorded values for Young's modulus are 74.516, 72.569, 60.526, and 59.272 GPa for TBZn, TBZMo, TBZBi, and TBZPb, respectively. On the other hand, adding Bi<sub>2</sub>O<sub>3</sub> and PbO led to enhanced shielding properties. For instance, the linear attenuation coefficient values for TBZn, TBZMo, TBZBi, and TBZPb at 0.015 MeV are 168.739, 115.656, 380.711, and 279.162, respectively. Also, the radiation protection efficiency (RPE) at 5 cm and 600 keV is 83.220 %, 79.299 %, 93.919 %, and 90.222 % for TBZn, TBZMo, TBZBi, and TBZPb, respectively. While adding different oxides decreased stability in the current glasses, it also enhanced their shielding properties, recommending their use in the radiation shielding field.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116280"},"PeriodicalIF":3.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical MaterialsPub Date : 2024-10-16DOI: 10.1016/j.optmat.2024.116265
Arezou Rashidi , Ali Hatef
{"title":"Dynamic tunability of NIR absorption in a plasmonic grating through nonlinear kerr-effect of graphene-oxide and photothermal phase transition of GSST","authors":"Arezou Rashidi , Ali Hatef","doi":"10.1016/j.optmat.2024.116265","DOIUrl":"10.1016/j.optmat.2024.116265","url":null,"abstract":"<div><div>In this paper, we present an in-depth examination of the absorption dynamics of a silver plasmonic grating incorporating Kerr-type nonlinear graphene-oxide (GO) nanoslits and a Ge<sub>2</sub>Sb<sub>2</sub>Se<sub>4</sub>Te<sub>1</sub> (GSST) phase-change material, both in linear and nonlinear regimes. Linear absorption approaches unity at the resonant wavelength when GSST is amorphous. Upon exposure to a nanosecond Gaussian pulse laser irradiation with appropriate fluences, the amorphous GSST partially crystallizes through a thermoplasmonic-induced process, resulting in a significant reduction of the linear on-resonance absorption in the form of a step-like curve. Additionally, the weak off-resonance linear absorption of the system can be enhanced owing to the non-uniform phase-transition within the GSST. Transitioning to a nonlinear regime, considering the third-order nonlinearity of GO nanoslits, reveals distinct absorption behaviors. Temporal analysis reveals that at the on-resonance wavelength, the unit absorption decreases with increasing laser intensity, reaching a minimum at the pulse peak due to the Kerr nonlinearity in the GO. Intriguingly, the absorption exhibits a U-shaped curve at lower fluences, while at higher fluences, it stabilizes at a lower value post-pulse peak where the amorphous GSST undergoes a thermally driven partially crystallization phase transformation. In the off-resonance mode, the weak absorption enhances dramatically by increasing the fluence, tracing an imperfect parabolic trajectory that reaches nearly unit at the trailing edge of the pulse, attributed to the Kerr nonlinearity within the GO nanoslits. By further increasing the laser fluence, the photothermal response of the GSST emerges as the dominant factor, diminishing the unity absorption observed at the trailing edge of the pulse. These findings underscore the dynamic responsiveness of the proposed grating to pulsed laser illumination, driven by the nonlinear Kerr effect and GSST reconfigurability, offering promising opportunities for developing active optical switching devices.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116265"},"PeriodicalIF":3.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical MaterialsPub Date : 2024-10-16DOI: 10.1016/j.optmat.2024.116260
E. Rodríguez , J.J. Leal , R. Orozco-Mena , M.C. Maldonado-Orozco , R. Narro-García
{"title":"Chemical durability of optical temperature sensors made of tellurite glass: Effect of the alumina concentration","authors":"E. Rodríguez , J.J. Leal , R. Orozco-Mena , M.C. Maldonado-Orozco , R. Narro-García","doi":"10.1016/j.optmat.2024.116260","DOIUrl":"10.1016/j.optmat.2024.116260","url":null,"abstract":"<div><div>Tellurite glass is an amorphous material commonly doped with rare earth ions for the development of optical temperature sensors. Considering the intrinsic properties of glasses, it is expected that these sensors could be used in acidic environments and withstand temperature changes. However, this has not been fully demonstrated since most of the literature is limited to demonstrate the sensor operation under normal conditions. Additionally, there is a lack of information regarding the chemical durability of these glasses and methods to improve it. In this work, a special tellurite glass composition was proposed for the development of optical temperature sensor. The effect of the alumina concentration on the structure, chemical durability and emission properties of the glasses was evaluated. Chemical durability was assessed by monitoring the weight loss of glass samples after immersion in hydrochloric acid solutions at room temperature, vegetable oil or air at 150 °C. The results indicate that the addition of alumina increases the chemical durability of the glass and improves its emission properties. It was found that the average temperature estimated by the optical sensor had a relative error of 1.3 % due to the degradation of the glass caused by remaining immersed in a 1 N HCl solution for 60 days.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116260"},"PeriodicalIF":3.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142533350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"BODIPY-based fluorescent sensor material for airborne acetone and benzene with aggregation-driven selectivity","authors":"Alexander Bobrov , Sergey Usoltsev , Natalya Moleva , Yuriy Marfin","doi":"10.1016/j.optmat.2024.116267","DOIUrl":"10.1016/j.optmat.2024.116267","url":null,"abstract":"<div><div>Paper highlights advances in design of fluorescent sensors for solvent vapors with boron-dipyrromethene (BODIPY) as a model active component. The present study demonstrates that BODIPY-based fluorescent materials could be successfully utilized for detection of benzene and acetone in gas phase. Concentration of luminophore was found to affect sensory response to benzene (up to 3-fold increase in adjusted conditions). At the same time, sensory response to acetone is concentration-independent, suggesting different underlying response mechanisms and allowing to tune selectivity with choice of concentration. Detection limits achieved for sensory materials are 1.2<strong>·</strong>10<sup>4</sup> mg/m<sup>3</sup> for acetone and 0.94<strong>·</strong>10<sup>4</sup> mg/m<sup>3</sup> for benzene. Ultimately, obtained sensor materials could be completely regenerated without need for inert gas purge.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116267"},"PeriodicalIF":3.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical MaterialsPub Date : 2024-10-16DOI: 10.1016/j.optmat.2024.116291
Abhinav Kumar , Harikumar Pallathadka , A.K. Kareem , Soumya V. Menon , M. Atif , Mandeep Kaur , Nouby M. Ghazaly , G.V. Sivaprasad , Merwaa Hadrawi
{"title":"Exploring the potential of SnSe/PANi composite counter electrodes for improved efficiency in dye-sensitized solar cells","authors":"Abhinav Kumar , Harikumar Pallathadka , A.K. Kareem , Soumya V. Menon , M. Atif , Mandeep Kaur , Nouby M. Ghazaly , G.V. Sivaprasad , Merwaa Hadrawi","doi":"10.1016/j.optmat.2024.116291","DOIUrl":"10.1016/j.optmat.2024.116291","url":null,"abstract":"<div><div>This paper investigates the synthesis and characterization of novel counter electrodes (CEs) for dye-sensitized solar cells (DSSCs), focusing on composite polyaniline (PANi) nanofibers integrated with tin selenide (SnSe). Three CEs, namely SnSe, PANi, and their composite, were prepared via facile hydrothermal and cyclic voltammetry methods and compared with a standard platinum (Pt) CE. The efficiencies obtained were 4.20 %, 5.63 %, 8.39 %, and 7.72 % for SnSe, PANi, SnSe/PANi, and Pt CEs, respectively. The improved efficiencies, particularly in the case of the SnSe/PANi composite, were attributed to increased short-circuit density of the composite sample. The materials and devices prepared in this study are characterized using various methods including FESEM, TEM, XRD, Raman and FTIR spectroscopies, EIS, Tafel, OCVD, IPCE and etc to support our proposed CE structure. Our findings demonstrate the promising potential of SnSe/PANi composite CEs in enhancing the performance and affordability of DSSCs.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116291"},"PeriodicalIF":3.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142533421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"9-(9-Alkylcarbazol-3-yl)-3-(methoxypyridin-3-yl)carbazoles as host materials for very efficient OLEDs","authors":"Raminta Beresneviciute , Daiva Tavgeniene , Dovydas Blazevicius , Kuan-Wei Chen , Yu-Hsuan Chen , Saulius Grigalevicius , Chih-Hao Chang","doi":"10.1016/j.optmat.2024.116273","DOIUrl":"10.1016/j.optmat.2024.116273","url":null,"abstract":"<div><div>Four derivatives of 9-(9-alkylcarbazol-3-yl)-3-(methoxypyridin-3-yl)carbazoles (<strong>HM1-HM4</strong>) have been synthesized from key starting compounds: 9-alkyl-3-iodocarbazoles and corresponding 3-(methoxypyridin-3-yl)-9<em>H</em>-carbazoles by using Ullmann coupling reactions. The objective materials have very high thermal stabilities (temperatures of 5 % weight loss 371–387 °C) and can form amorphous layers, also having rather high glass transition temperatures in the region of 89–97 °C. Triplet energy gaps of the four compounds were about 2.7–2.8 eV, making them appropriate for use as host materials in green phosphorescent OLEDs with Ir(ppy)<sub>3</sub> guest. Additionally, a composite host system incorporating a synthesized compound of <strong>HM</strong> series and bis-4,6-(3,5-di-3-pyridylphenyl)-2-methylpyrimidine was developed. The devices with <strong>HM2</strong> or <strong>HM4</strong> demonstrated the best characteristics whether the emitting layer was a single host or a co-host system, indicating that both compounds could facilitate ideal energy transfer and achieve carrier balance in the device architectures. Notably, the device using 9-(9-butylcarbazol-3-yl)-3-(2-methoxypyridin-3-yl)carbazole (<strong>HM2</strong>) host outperformed the other devices, achieving peak efficiencies of 16.9 % (58.3 cd/A and 65.0 lm/W) with maximum luminance exceeding 241100 cd/m<sup>2</sup>.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116273"},"PeriodicalIF":3.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical MaterialsPub Date : 2024-10-15DOI: 10.1016/j.optmat.2024.116282
Abely E. Mwakuna , C. Laxmikanth , R.K.N.R. Manepalli
{"title":"Effect of replacing B2O3 with CuO on the structural, optical absorption, thermal, mechanical, and gamma-ray shielding properties of B2O3–Bi2O3–K2O glass","authors":"Abely E. Mwakuna , C. Laxmikanth , R.K.N.R. Manepalli","doi":"10.1016/j.optmat.2024.116282","DOIUrl":"10.1016/j.optmat.2024.116282","url":null,"abstract":"<div><div>This paper delves into the effect of replacing B<sub>2</sub>O<sub>3</sub> with CuO on the structural, optical absorption, thermal, mechanical, and gamma(γ)-ray shielding properties of four CKB glasses formulated as (65-y)B<sub>2</sub>O<sub>3</sub>–15Bi<sub>2</sub>O<sub>3</sub>–20K<sub>2</sub>O-yCuO (where y = 0, 0.3, 0.6, and 1.2 mol%). The glasses were created using the melt-quenching technique, and their non-crystalline structure was verified by X-ray diffraction (XRD) analysis. Fourier-transform infrared (FTIR) spectroscopy identified several structural groups, predominantly consisting of BO<sub>3</sub>, BO<sub>4</sub> units, and B–<em>O</em>–B linkages. Thermal properties, assessed via Differential Scanning Calorimetry (DSC), indicated that the glass transition temperature was highest for the 0.3 mol% CuO sample (CKB0.3), demonstrating enhanced thermal stability in comparison to other compositions. Density measurements correlated positively with CuO concentration, peaking at 1.2 mol%, while molar volume, boron molar volume, oxygen packing density, and boron-boron separation distances showed a decreasing trend with increased CuO concentration. UV–Vis absorption spectroscopy indicated a decline in the optical energy gap and an increase in Urbach energy, attributed to the conversion of BO<sub>3</sub> into BO<sub>4</sub> units in the glass matrix. Mechanical properties, evaluated using the Makishima-Mackenzie model, demonstrated enhancements in elastic moduli and micro-hardness with rising CuO concentration. The γ-ray shielding properties (γ-RPs) were examined at energies of 0.662, 1.173, and 1.333 MeV, revealing that both the linear attenuation coefficient and effective atomic number reached their maximum values at 1.2 mol% CuO (CKB1.2). While CKB1.2 exhibited excellent mechanical and γ-ray shielding performance, CKB0.3 excelled in thermal stability and demonstrated γ-ray shielding efficiency comparable to CKB1.2. This suggests that CKB0.3 is a promising candidate for radiation shielding applications requiring a balanced combination of thermal stability and effective γ-ray attenuation properties, particularly at 0.662 MeV.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116282"},"PeriodicalIF":3.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142533511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical MaterialsPub Date : 2024-10-15DOI: 10.1016/j.optmat.2024.116281
Huisheng Lin , Tingting Shi , Yi Huang , Shuncong Zhong , Bing Wang , Zhenghao Zhang , Yonglin Huang
{"title":"Measurement of stress optical coefficients for GFRP based on terahertz time-domain spectroscopy","authors":"Huisheng Lin , Tingting Shi , Yi Huang , Shuncong Zhong , Bing Wang , Zhenghao Zhang , Yonglin Huang","doi":"10.1016/j.optmat.2024.116281","DOIUrl":"10.1016/j.optmat.2024.116281","url":null,"abstract":"<div><div>Glass Fiber-Reinforced Polymer (GFRP) finds extensive applications in the high-end equipment manufacturing industry owing to its advantages of light weight, high strength, and corrosion resistance. Since the residual stress in GFRP builds up during the curing process and affect its mechanical properties and service life, the characterization of the residual stress in GFRP is crucial. In this study, we establish a theoretical model based on the anisotropic stress-optics law for the orthorhombic crystalline system to describe the terahertz-elasticity of GFRP and calibrate the stress optical coefficients of GFRP. First, the residual stress in GFRP at different curing temperatures are measured by fiber Bragg grating sensors. Then, the refractive index of GFRP with different residual stress are obtained based on transmission-type THz-TDS. Finally, based on the proposed photoelastic model of GFRP, the stress optical coefficients of GFRP are measured by combining the measurement results of residual stress and refractive index. The experimental results show that the refractive index of GFRP decreases with the increase of residual stress; the stress optical coefficients of GFRP are determined as <em>q</em><sub>11</sub> = −5.612 × 10<sup>−9</sup> Pa<sup>−1</sup>, <em>q</em><sub>12</sub> = −2.548 × 10<sup>−9</sup> Pa<sup>−1</sup>, <em>q</em><sub>21</sub> = −1.305 × 10<sup>−8</sup> Pa<sup>−1</sup>, <em>q</em><sub>22</sub> = −1.408 × 10<sup>−9</sup> Pa<sup>−1</sup>. The modeling of terahertz photoelasticity in GFRP and the determination of stress optical coefficients provide a basis for characterizing residual stress in GFRP by THz-TDS.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116281"},"PeriodicalIF":3.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142533509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical MaterialsPub Date : 2024-10-15DOI: 10.1016/j.optmat.2024.116264
Ph Veber , G. Gadret , Y. Guyot , O. Plantevin , Ph Goldner , A. Ferrier , G. Buşe , M.E.H. El Hafid , R. Moncorgé , M. Velázquez
{"title":"Luminescence and Faraday rotation properties of Tb2O3 and Tb:Y2O3 single crystals","authors":"Ph Veber , G. Gadret , Y. Guyot , O. Plantevin , Ph Goldner , A. Ferrier , G. Buşe , M.E.H. El Hafid , R. Moncorgé , M. Velázquez","doi":"10.1016/j.optmat.2024.116264","DOIUrl":"10.1016/j.optmat.2024.116264","url":null,"abstract":"<div><div>Heavily-doped and fully concentrated 2.78 % Tb:Y<sub>2</sub>O<sub>3</sub> and Tb<sub>2</sub>O<sub>3</sub> single crystals with high optical quality and very low levels of impurities have been grown and studied for their luminescence and Faraday rotation properties. Absorption, emission and fluorescence decay measurements performed vs excitation wavelength and temperature and their confrontation with Judd-Ofelt and crystal-field calculations show the contributions of two types of luminescent centers: dominant ones with a <sup>5</sup>D<sub>4</sub> emission lifetime of 23 μs corresponding to coupled near-neighbor Tb<sup>3+</sup> ions, all in C<sub>2</sub> symmetry sites, and minority ones with a <sup>5</sup>D<sub>4</sub> emission lifetime of about 2 ms corresponding to coupled Tb<sup>3+</sup> ions in C<sub>2</sub> and C<sub>3i</sub> near-neighbor symmetry sites. Faraday rotation measurements confirm Tb<sub>2</sub>O<sub>3</sub> as the Tb-based Faraday crystalline material with the largest ever measured Verdet constant, at all temperatures and from the visible to the near-infrared. They also show that the dominant luminescent centers contribute more particularly to this large Verdet constant thanks to a favorable crystal-field splitting of their <sup>7</sup>F<sub>6</sub> ground multiplet and also to the contributions of both types of spin-allowed and spin-forbidden 4f-5d absorption bands.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116264"},"PeriodicalIF":3.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142533513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical MaterialsPub Date : 2024-10-15DOI: 10.1016/j.optmat.2024.116270
Sana Ghaffar , Adeel Ahmed , Rashid Iqbal , Muhammad Jamshaid , Mohamed S. Elshikh , Mohamed Farouk Elsadek , Mohammad Ashraf Hossain
{"title":"Uncovering the synthesis of a visible light-driven manganese-doped copper bismuth oxide catalyst for enhanced degradation of dye: Insights into the factors affecting the degradation","authors":"Sana Ghaffar , Adeel Ahmed , Rashid Iqbal , Muhammad Jamshaid , Mohamed S. Elshikh , Mohamed Farouk Elsadek , Mohammad Ashraf Hossain","doi":"10.1016/j.optmat.2024.116270","DOIUrl":"10.1016/j.optmat.2024.116270","url":null,"abstract":"<div><div>In recent times, effluent pollution has had an exceptionally detrimental effect on aquatic life as well as human beings. The management of wastewater has emerged as a formidable undertaking for scientists owing to the existence of organic contaminants. Herein, we synthesized the manganese-doped copper bismuth oxide (Mn<sub>0.15</sub>Cu<sub>0.85</sub>Bi<sub>2</sub>O<sub>4</sub>) through hydrothermal method and employed them for successfully eliminating complex pollutants. The assessment of the visible light-induced photocatalytic efficacy of the catalyst was performed for the degradation of methyl violet (MV). MV had a degradation of 89.68% when CuBi<sub>2</sub>O<sub>4</sub> was used. However, the degrading rate of the Mn<sub>0.15</sub>Cu<sub>0.85</sub>Bi<sub>2</sub>O<sub>4</sub> escalated to 99.18% in 36 min. The rate constant exhibited a rise between 0.0627 and 0.1134 min<sup>−1</sup>, confirming the effectiveness of the Mn<sub>0.15</sub>Cu<sub>0.85</sub>Bi<sub>2</sub>O<sub>4</sub>. The effectiveness of the Mn<sub>0.15</sub>Cu<sub>0.85</sub>Bi<sub>2</sub>O<sub>4</sub> is due to its superior surface area (51.97 m<sup>2</sup>/g), which arises from the integration of Mn-ions. Additionally, examining the impact of different reaction variables revealed a substantial correlation with the elimination of MV dye. The potential reason for the deterioration of MV could be attributed to the generation of <sup>•</sup>OH and O<sub>2</sub><sup>•−</sup> radicals, which was confirmed by radical trapping experiments. The photostability of the generated Mn<sub>0.15</sub>Cu<sub>0.85</sub>Bi<sub>2</sub>O<sub>4</sub> catalyst exhibited remarkable characteristics. Ultimately, this study presents a technique for creating effective catalysts for treating wastewater that is both economical and practical.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"157 ","pages":"Article 116270"},"PeriodicalIF":3.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}