Pub Date : 2023-09-05DOI: 10.1557/s43578-023-01139-x
C. Suryanarayana, Ahmed A. Al-Joubori, Furkan Türker, U. Seelam
Nanocrystalline α-ZnSe was synthesized by mechanical alloying after milling the blended elemental powder for just 30 min. XRD studies indicated that a homogeneous phase had formed after 1 h; no change was observed afterwards up to 10 h. The minimum crystallite size achieved was 9 nm. The lattice parameter of the powder milled for 10 h was a = 0.56578 nm. On annealing this powder for 1 h at 1000 °C, the lattice parameter increased to a = 0.56691 nm, suggesting that the lattice had contracted in the as-milled condition due to its nanocrystalline state, and that it reached the equilibrium value on annealing. SEM and EDS techniques confirmed the results of XRD studies. Our results indicate that a homogeneous α-ZnSe phase was obtained on milling and that the phase exhibited increased homogeneity range. These results are new and were not reported in any earlier investigations.
{"title":"Synthesis of nanocrystalline ZnSe by mechanical alloying","authors":"C. Suryanarayana, Ahmed A. Al-Joubori, Furkan Türker, U. Seelam","doi":"10.1557/s43578-023-01139-x","DOIUrl":"https://doi.org/10.1557/s43578-023-01139-x","url":null,"abstract":"Nanocrystalline α-ZnSe was synthesized by mechanical alloying after milling the blended elemental powder for just 30 min. XRD studies indicated that a homogeneous phase had formed after 1 h; no change was observed afterwards up to 10 h. The minimum crystallite size achieved was 9 nm. The lattice parameter of the powder milled for 10 h was a = 0.56578 nm. On annealing this powder for 1 h at 1000 °C, the lattice parameter increased to a = 0.56691 nm, suggesting that the lattice had contracted in the as-milled condition due to its nanocrystalline state, and that it reached the equilibrium value on annealing. SEM and EDS techniques confirmed the results of XRD studies. Our results indicate that a homogeneous α-ZnSe phase was obtained on milling and that the phase exhibited increased homogeneity range. These results are new and were not reported in any earlier investigations.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"68 1","pages":"4261 - 4271"},"PeriodicalIF":0.8,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78126630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rahul Kesharwani, Kishor Kumar Jha, C. Sarkar, M. Imam
Abstract The present work aims to model the three-dimensional heat transfer coupled with the material flow model of 7075-T6 aluminium alloy material using the three tool pin profiles, square, pentagon, and hexagon, in the friction stir welding process. The temperature rise and fluid flow behaviour from the top to the bottom of the tool were evaluated. Also, the strain rate and dynamic viscosity variation were found near the tool pin and shoulder region. The results showed that the frictional contact heat between the shoulder surface and workpiece was responsible for the maximum heat generation. The probe area was minimum in the square tool pin geometry, which results in high heat generation due to the maximum shoulder surface contact area with the workpiece model. Furthermore, the analytical formula for calculating the heat generation on the tool shoulder/workpiece interface and the tool pin/workpiece contact region were also evaluated. The numerical modelling of heat generation was evaluated by COMSOL Multiphysics V5.3a software.
{"title":"Effect of tool pin profile on the heat generation model of the friction stir welding of aluminium alloy","authors":"Rahul Kesharwani, Kishor Kumar Jha, C. Sarkar, M. Imam","doi":"10.1515/ijmr-2022-0217","DOIUrl":"https://doi.org/10.1515/ijmr-2022-0217","url":null,"abstract":"Abstract The present work aims to model the three-dimensional heat transfer coupled with the material flow model of 7075-T6 aluminium alloy material using the three tool pin profiles, square, pentagon, and hexagon, in the friction stir welding process. The temperature rise and fluid flow behaviour from the top to the bottom of the tool were evaluated. Also, the strain rate and dynamic viscosity variation were found near the tool pin and shoulder region. The results showed that the frictional contact heat between the shoulder surface and workpiece was responsible for the maximum heat generation. The probe area was minimum in the square tool pin geometry, which results in high heat generation due to the maximum shoulder surface contact area with the workpiece model. Furthermore, the analytical formula for calculating the heat generation on the tool shoulder/workpiece interface and the tool pin/workpiece contact region were also evaluated. The numerical modelling of heat generation was evaluated by COMSOL Multiphysics V5.3a software.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"20 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85666843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract This study examines the optical properties of Ca2La8−x(SiO4)6O2:xHo3+ phosphors derived using the sol–gel method. X-ray diffraction data and Rietveld analysis confirmed that the phosphors formed in hexagonal phase with an average estimated crystalline size of 27 nm. The prominent excitation peak observed at wavelength 463 nm corresponding to excitation energy 2.68 eV was due to the 5I8 → 5G6 + 5F1 transition. The photoluminescence emission spectra revealed that the synthesized phosphors emitted in the green color region with the 5S2 + 5F4 → 5I8 transition, releasing 2.27 eV energy. The emission and excitation analyses revealed the presence of concentration quenching as the Ho3+ concentration exceeded 0.03 mol in the Ca2La8−x(SiO4)6O2:xHo3+ series. Further, photometry analysis demonstrated a color purity exceeding 94 %, which supports the candidacy of these phosphors for solid-state lighting applications.
{"title":"Photoluminescence features of trivalent holmium doped Ca2La8(SiO4)6O2 phosphors","authors":"Vijay P. Singh, A. Nande, S. Dhoble","doi":"10.1515/ijmr-2022-0314","DOIUrl":"https://doi.org/10.1515/ijmr-2022-0314","url":null,"abstract":"Abstract This study examines the optical properties of Ca2La8−x(SiO4)6O2:xHo3+ phosphors derived using the sol–gel method. X-ray diffraction data and Rietveld analysis confirmed that the phosphors formed in hexagonal phase with an average estimated crystalline size of 27 nm. The prominent excitation peak observed at wavelength 463 nm corresponding to excitation energy 2.68 eV was due to the 5I8 → 5G6 + 5F1 transition. The photoluminescence emission spectra revealed that the synthesized phosphors emitted in the green color region with the 5S2 + 5F4 → 5I8 transition, releasing 2.27 eV energy. The emission and excitation analyses revealed the presence of concentration quenching as the Ho3+ concentration exceeded 0.03 mol in the Ca2La8−x(SiO4)6O2:xHo3+ series. Further, photometry analysis demonstrated a color purity exceeding 94 %, which supports the candidacy of these phosphors for solid-state lighting applications.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"32 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90293158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-30DOI: 10.1557/s43578-023-01141-3
Siddarth K. Achar, L. Bernasconi, Juan J. Alvarez, J. K. Johnson
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{"title":"Deep-learning potentials for proton transport in double-sided graphanol","authors":"Siddarth K. Achar, L. Bernasconi, Juan J. Alvarez, J. K. Johnson","doi":"10.1557/s43578-023-01141-3","DOIUrl":"https://doi.org/10.1557/s43578-023-01141-3","url":null,"abstract":".","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"93 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90426610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-30DOI: 10.1557/s43578-023-01142-2
M. Shahriar, M. Uddin, E. Mora, Heqi Xu, Zheng Zhang, Changxue Xu
The study of cell–substrate interaction and cellular behavior is critical in tissue engineering and microfluidic research. Since the substrate properties affect the cellular response, it is essential to tune the properties of the polymeric substrate to mimic the native microenvironment for cells. Due to its tunable physical and mechanical properties, polydimethylsiloxane (PDMS) is widely used to study cellular mechanics. This study focused on investigating the effects of substrate stiffness and wettability of PDMS micropillar substrates on cellular response. Mixing different base-to-curing agent ratios of PDMS resulted in different stiffness, while the corona discharge increased the surface wettability. By culturing 3T3 fibroblast cells, it was found that cells preferred a stiffer and more hydrophilic substrate (5:1) compared to the softer and less hydrophilic substrate (20:1) for long-term cell adhesion and migration. This study proves that biomaterials with appropriate stiffness should be chosen to study the cell mechanobiology of this cell line.
{"title":"Tuning physio-mechanical properties of graded micropillar polydimethylsiloxane substrates for cellular attachment and guided migration","authors":"M. Shahriar, M. Uddin, E. Mora, Heqi Xu, Zheng Zhang, Changxue Xu","doi":"10.1557/s43578-023-01142-2","DOIUrl":"https://doi.org/10.1557/s43578-023-01142-2","url":null,"abstract":"The study of cell–substrate interaction and cellular behavior is critical in tissue engineering and microfluidic research. Since the substrate properties affect the cellular response, it is essential to tune the properties of the polymeric substrate to mimic the native microenvironment for cells. Due to its tunable physical and mechanical properties, polydimethylsiloxane (PDMS) is widely used to study cellular mechanics. This study focused on investigating the effects of substrate stiffness and wettability of PDMS micropillar substrates on cellular response. Mixing different base-to-curing agent ratios of PDMS resulted in different stiffness, while the corona discharge increased the surface wettability. By culturing 3T3 fibroblast cells, it was found that cells preferred a stiffer and more hydrophilic substrate (5:1) compared to the softer and less hydrophilic substrate (20:1) for long-term cell adhesion and migration. This study proves that biomaterials with appropriate stiffness should be chosen to study the cell mechanobiology of this cell line.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"88 1","pages":"4272 - 4286"},"PeriodicalIF":0.8,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84340738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-30DOI: 10.1557/s43578-023-01151-1
M. Muthuraj, N. Aarthi, M. Archana, V. Gopal, S. Rajeswari
Green synthesized NPs have been gaining more attention recently due to the medicinally active phytochemical constituents present in the plant extracts. This study presents a sustainable and economical approach for synthesizing undoped and doped NiO nanoparticles through co-precipitation. The nanoparticles were analyzed using UV–Vis, FTIR, XRD, SEM with EDAX, TEM, and XPS. From the phytochemical analysis, constituents present in the leaf extract may be responsible for the reduction and capping of the green synthesized pure and doped NPs. The antioxidant, antibacterial, antidiabetic, anti-inflammatory, and wound closure activity of the green synthesized pure and Co-doped NiO NPs have been analyzed. From the antibacterial activity, synthesized NPs exhibit a convincing zone of inhibition, which showed an increased efficiency towards Streptococcus mutans and Pseudomonas aeruginosa. Cytotoxic activity has been examined using an L929 cell line with a series of concentrations of NPs, among which 25 µg/ml showed good activity.
由于植物提取物中含有具有药用活性的植物化学成分，绿色合成NPs近年来受到越来越多的关注。本研究提出了一种可持续和经济的方法，通过共沉淀法合成未掺杂和掺杂的NiO纳米颗粒。采用UV-Vis, FTIR, XRD, SEM, EDAX, TEM和XPS对纳米颗粒进行了分析。从植物化学分析来看，叶提取物中存在的成分可能负责绿色合成纯和掺杂NPs的还原和封盖。分析了绿色合成纯NiO NPs和共掺杂NiO NPs的抗氧化、抗菌、降糖、抗炎和伤口愈合活性。从抗菌活性来看，合成的NPs具有令人信服的抑制区，对变形链球菌和铜绿假单胞菌的抑菌效果明显提高。用不同浓度的NPs检测了L929细胞系的细胞毒活性，其中25µg/ml具有较好的活性。
{"title":"Fabrication of Co-doped NiO nanoparticles and evaluation of in vitro cytotoxicity and wound healing activities","authors":"M. Muthuraj, N. Aarthi, M. Archana, V. Gopal, S. Rajeswari","doi":"10.1557/s43578-023-01151-1","DOIUrl":"https://doi.org/10.1557/s43578-023-01151-1","url":null,"abstract":"Green synthesized NPs have been gaining more attention recently due to the medicinally active phytochemical constituents present in the plant extracts. This study presents a sustainable and economical approach for synthesizing undoped and doped NiO nanoparticles through co-precipitation. The nanoparticles were analyzed using UV–Vis, FTIR, XRD, SEM with EDAX, TEM, and XPS. From the phytochemical analysis, constituents present in the leaf extract may be responsible for the reduction and capping of the green synthesized pure and doped NPs. The antioxidant, antibacterial, antidiabetic, anti-inflammatory, and wound closure activity of the green synthesized pure and Co-doped NiO NPs have been analyzed. From the antibacterial activity, synthesized NPs exhibit a convincing zone of inhibition, which showed an increased efficiency towards Streptococcus mutans and Pseudomonas aeruginosa. Cytotoxic activity has been examined using an L929 cell line with a series of concentrations of NPs, among which 25 µg/ml showed good activity.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"52 1","pages":"4395 - 4407"},"PeriodicalIF":0.8,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88080365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-29DOI: 10.1557/s43578-023-01138-y
Finaz Khan, S. Prusty, Pritha Saha, D. Bera, B. Datta, R. S. Saraffin, Arijit Kapuria, K. Dutta, Susmita Das
Herein, we have demonstrated and compared bimodal strategies towards augmenting the antimicrobial activity of graphene oxide (GO). Among the two modifications viz. through alteration of GO surface functionalities and secondly through surface modification of GO with an ampicillin-based antibacterial ionic liquid (IL), the IL modification was most effective in enhancing the bactericidal effect. pH and the zeta potential values of the nanodispersions support the alteration of surface functionalities of GO by variation in reaction conditions and SEM, XRD, Raman spectra establish the resulting sheet thickness, morphology, stacking and planarity. The surface modification of GO with trihexyltetradecyl phosphonium ampicillin ([TTP][Amp]) IL as indicated by FTIR, SEM, pH and zeta potential measurements imply in nearly five times lower MBC value compared to average MBC value of the four GO variants. Hence, judicious IL modification can be an effective approach towards augmenting antibacterial property of GO for enduring antifouling coatings and membranes.
{"title":"Bimodal surface modification strategies towards improving the antibacterial activity of graphene oxide","authors":"Finaz Khan, S. Prusty, Pritha Saha, D. Bera, B. Datta, R. S. Saraffin, Arijit Kapuria, K. Dutta, Susmita Das","doi":"10.1557/s43578-023-01138-y","DOIUrl":"https://doi.org/10.1557/s43578-023-01138-y","url":null,"abstract":"Herein, we have demonstrated and compared bimodal strategies towards augmenting the antimicrobial activity of graphene oxide (GO). Among the two modifications viz. through alteration of GO surface functionalities and secondly through surface modification of GO with an ampicillin-based antibacterial ionic liquid (IL), the IL modification was most effective in enhancing the bactericidal effect. pH and the zeta potential values of the nanodispersions support the alteration of surface functionalities of GO by variation in reaction conditions and SEM, XRD, Raman spectra establish the resulting sheet thickness, morphology, stacking and planarity. The surface modification of GO with trihexyltetradecyl phosphonium ampicillin ([TTP][Amp]) IL as indicated by FTIR, SEM, pH and zeta potential measurements imply in nearly five times lower MBC value compared to average MBC value of the four GO variants. Hence, judicious IL modification can be an effective approach towards augmenting antibacterial property of GO for enduring antifouling coatings and membranes.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"143 1","pages":"4247 - 4260"},"PeriodicalIF":0.8,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76433998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-29DOI: 10.1557/s43578-023-01145-z
P. Rebecca, D. Durgalakshmi, S. Balakumar, R. A. Rakkesh
In this study, we extract type I collagen from fish scales and employ an electrostatic self-assembly technique to crosslink it with negatively charged graphene. By incorporating 0%, 1%, 5%, and 10% weight of graphene with collagen, we significantly enhance the mechanical strength, conductivity, and 3D porous structure of the scaffolds. The incorporation of graphene increases the Young’s modulus of the scaffolds threefold compared to pure collagen scaffolds. Impedance measurements reveal values of 4 kΩ, 2.5 kΩ, and 1 kΩ for scaffolds containing 1%, 5%, and 10% weight of graphene with collagen, respectively. The scaffolds demonstrate cell viability above 90%, and the osteogenic differentiation potential, as determined by ALP assay, confirms successful osteogenesis. Moreover, the eco-friendly synthesis route establishes the hybrid 3D graphene-collagen nanocomposite scaffold as a stable material with excellent biocompatible properties in a biological medium.
{"title":"Biomimetic scaffold development for bone tissue engineering: Crosslinking graphene with collagen to enhance mechanical strength, conductivity, and porous structure","authors":"P. Rebecca, D. Durgalakshmi, S. Balakumar, R. A. Rakkesh","doi":"10.1557/s43578-023-01145-z","DOIUrl":"https://doi.org/10.1557/s43578-023-01145-z","url":null,"abstract":"In this study, we extract type I collagen from fish scales and employ an electrostatic self-assembly technique to crosslink it with negatively charged graphene. By incorporating 0%, 1%, 5%, and 10% weight of graphene with collagen, we significantly enhance the mechanical strength, conductivity, and 3D porous structure of the scaffolds. The incorporation of graphene increases the Young’s modulus of the scaffolds threefold compared to pure collagen scaffolds. Impedance measurements reveal values of 4 kΩ, 2.5 kΩ, and 1 kΩ for scaffolds containing 1%, 5%, and 10% weight of graphene with collagen, respectively. The scaffolds demonstrate cell viability above 90%, and the osteogenic differentiation potential, as determined by ALP assay, confirms successful osteogenesis. Moreover, the eco-friendly synthesis route establishes the hybrid 3D graphene-collagen nanocomposite scaffold as a stable material with excellent biocompatible properties in a biological medium.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"72 1","pages":"4314 - 4323"},"PeriodicalIF":0.8,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88117269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-29DOI: 10.1557/s43578-023-01146-y
Bin Gan, Shengli Wang, Haifeng Dang, Xinfa Dong
Nanorod-like NiSe2/Mn0.3Cd0.7S (NiSe2/MCS) Schottky junction photocatalysts were fabricated via a two-step solvothermal approach. The NiSe2 nanoparticles were uniformly precipitated on the surface of the Mn0.3Cd0.7S (MCS) nanorods. The Schottky junctions were formed at the interface region of the MCS nanorods and the NiSe2 nanoparticles, strengthening the visible-light absorption intensity and accelerating the separation of photoinduced electron–hole pairs. The resulting built-in electric field prevents the photo-excited electrons from migrating back to MCS and reduces the charge carrier recombination, thus, improving the photocatalytic hydrogen production performance. When the mass ratio of NiSe2 to MCS is 10 wt%, the hydrogen production rate of 10 mg NiSe2/MCS reaches up to 687 μmol·h−1 at the temperature of 15°C, which is 3.3 times that of the unmodified MCS. The solar-to-hydrogen (STH) conversion efficiency of 10 wt% NiSe2/MCS is about 0.95%.
{"title":"NiSe2/Mn0.3Cd0.7S Schottky junction catalyst for enhanced photocatalytic hydrogen production under visible light","authors":"Bin Gan, Shengli Wang, Haifeng Dang, Xinfa Dong","doi":"10.1557/s43578-023-01146-y","DOIUrl":"https://doi.org/10.1557/s43578-023-01146-y","url":null,"abstract":"Nanorod-like NiSe2/Mn0.3Cd0.7S (NiSe2/MCS) Schottky junction photocatalysts were fabricated via a two-step solvothermal approach. The NiSe2 nanoparticles were uniformly precipitated on the surface of the Mn0.3Cd0.7S (MCS) nanorods. The Schottky junctions were formed at the interface region of the MCS nanorods and the NiSe2 nanoparticles, strengthening the visible-light absorption intensity and accelerating the separation of photoinduced electron–hole pairs. The resulting built-in electric field prevents the photo-excited electrons from migrating back to MCS and reduces the charge carrier recombination, thus, improving the photocatalytic hydrogen production performance. When the mass ratio of NiSe2 to MCS is 10 wt%, the hydrogen production rate of 10 mg NiSe2/MCS reaches up to 687 μmol·h−1 at the temperature of 15°C, which is 3.3 times that of the unmodified MCS. The solar-to-hydrogen (STH) conversion efficiency of 10 wt% NiSe2/MCS is about 0.95%.","PeriodicalId":14079,"journal":{"name":"International Journal of Materials Research","volume":"49 1","pages":"4324 - 4333"},"PeriodicalIF":0.8,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90225704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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