Article
Energy & Fuels
Muhammad Suleman Tahir, Numair Manzoor, Muhammad Sagir, M. B. Tahir, Tasmia Nawaz
Summary: In this study, p-n type heterojunction ZnFe2O4/TiO2 photocatalysts with different ratios were prepared and it was found that ZnFe2O4/TiO2 (1:1,5) exhibited the highest photocatalytic activity for CO2 reduction into methanol. The material showed characteristics of high crystallinity, purity, small particle size, absorption in visible light region, and low charge carrier recombination, contributing to the efficiency of methanol production.
Article
Engineering, Environmental
Fan Gao, Xianyong Guo, Haoxuan Cui, Jing Wang, Jiaxuan Liu, Yinghai Wu, Li Wan, Cuiya Zhang, Guangjing Xu
Summary: In this study, magnetic ZnFe2O4 nanosphere photocatalyst was prepared and found to have good removal efficiency for high concentration NH4+-N wastewater at a temperature of 400℃. The recovered magnetic ZnFe2O4 nanosphere photocatalyst still exhibited high removal rate after magnetic force was applied.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Inorganic & Nuclear
Dandan Liu, Xin Liu, Zhifen Guo, Qiang Li, Jian Yang, Hongzhu Xing, Dashu Chen
Summary: In this study, aluminum-based porphyrin metal-organic frameworks with different morphologies and sizes were synthesized, and they exhibited excellent photocatalytic activities for Cr(VI) reduction. The morphology of the frameworks could be tuned by adjusting reaction conditions and ligand types, and the metallic frameworks showed higher catalytic activity.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Keren Shi, Guangyan Qian, Yueyue Kong, Mingming Li, Yuxiang Xiang, Huiqin Yao
Summary: The MCM-48/ZnFe2O4/BiOBr (MZBB) heterojunction photocatalyst was used to decompose rhodamine B (RhB) under visible light. The compound semiconductor degraded RhB by 99.03% after 60 min at a concentration of 40 mg/L and pH 6.0, with a total organic carbon (TOC) mineralization rate of 0.0631. The combination of n-type ZnFe2O4 and BiOBr improved the photocatalytic performance of the MCM-48/ZnFe2O4/ BiOBr composite, and the presence of n-n junctions promoted the separation of photogenerated carriers and prolonged recombination time.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Xuechen Li, Chaojie Shi, Zixuan Feng, Jie He, Rui Zhang, Zhengchun Yang, Peng Pan, Huayi Li, Deqiang Feng, Lingcheng Zheng
Summary: In this study, Si nanowires/ZnFe2O4/Ag composite photocatalyst is prepared through metal-assisted chemical etching and hydrothermal methods. It exhibits high photocatalytic performance under visible light, with a photocurrent density of 1.76 mA/cm2 and a Methyl orange photodegradation rate of 19% within 90 min. Magnetic field is further applied to enhance the photocatalytic efficiency by increasing carrier transfer and charge separation. The composite photocatalyst shows negative magnetoresistance, allowing for more effective transfer of photo-generated carriers to the electrode surface and improved photocatalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Zhichao Miao, Jiyao Tao, Shaoyuan Li, Jian Wu, Zhao Ding, Xiuhua Chen, Wenhui Ma, Hua-Jun Fan
Summary: The popcorn-shaped ZnFe2O4 nanospheres were synthesized and loaded with CdS nanoparticles on their surface. The resulting ZnFe2O4/CdS composite showed a maximum degradation efficiency of 93.2% for rhodamine B and maintained high photocatalytic activity after repeated use. The heterojunction between CdS and ZnFe2O4 improved the separation efficiency of electron-hole pairs and enhanced catalytic activity.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Environmental Sciences
Qiang Gao, Zhi Wang, Junxi Li, Bin Liu, Chenguang Liu
Summary: In this study, a series of ZnIn2S4/ZnFe2O4 Z-scheme heterojunction photocatalysts with superior magnetic properties were synthesized. These photocatalysts exhibited enhanced efficiency and easy recyclability for photodegradation and Cr(VI) reduction. The findings open up new possibilities for the design of highly efficient and magnetically separable photocatalysts for environmental remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Mehdi Sabzehmeidani, Hajir Karimi, Mehrorang Ghaedi, Vahid Madadi Avargani
Summary: ZnFe2O4/Ag/AgBr composites were successfully prepared using electrospinning and precipitation methods, showing superior photocatalytic activity and stability in degrading Rhodamine B under visible light.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
Yusuke Kuramochi, Akiharu Satake
Summary: The success of photocatalytic CO2 reduction using sunlight relies on the effective capture and utilization of visible light. Zinc porphyrins, synthetic analogues of chlorophyll and bacteriochlorophyll, have strong absorption bands in the visible region and are potential photosensitizers for CO2 reduction. However, their poor stability under photocatalytic reduction conditions has limited their use. By combining a metal complex catalyst with the porphyrin, we dramatically improve the durability of the porphyrin during the photocatalytic CO2 reduction reaction by preventing the accumulation of multiple electrons on the porphyrin. We provide a detailed description of the molecular design of systems that combine Re complexes and porphyrins, as well as their unique reaction mechanisms in photocatalytic CO2 reduction.
Article
Engineering, Environmental
D. Duong La, Ratan W. Jadha, Nilesh M. Gosavi, Eldon R. Rene, Tuan Anh Nguyen, Bui Xuan-Thanh, D. Duc Nguyen, W. Jin Chung, S. Woong Chang, X. Hoan Nguyen, Lam Dai Tran, Sheshanath V. Bhosale
Summary: Utilizing a solvophobic self-assembly protocol, nanostructured porphyrins were obtained from monomeric tetrakis-triphenylamine porphyrin in a THF/H2O mixture. The belt-like porphyrin aggregates showed better photocatalytic activity in water treatment compared to rod-like counterparts, highlighting the potential of porphyrins as nature-inspired photocatalysts for contaminants removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
Huiqin Ye, Hui Xiao, Rongfang Zhang, Shengya Zhang, Ze Wang, Wei Luo, Ruixiu Xie, Yanjun Feng, Xiaoquan Lu
Summary: A porphyrin-phosphazene polymer (THPP-HCCP) with a large conjugated structure was synthesized and Ag particles were deposited on its surface as an organic-inorganic composite interface improvement layer. The deposition of the composite polymer film on BiVO4 significantly increased the photocurrent density, reaching up to 2.2 mA cm(-2) (1.23 V vs. RHE), almost three times higher than pristine BiVO4, benefiting from the synergistic effect of Ag nanoparticles and porphyrin-phosphazene. The Ag-THPP-HCCP heterostructures broadened the light-absorbing range and facilitated hole transfer to the semiconductor surface, resulting in an improved water oxidation process. Scanning photoelectrochemical microscopy showed a significant improvement in the transport of photogenerated holes in Ag-THPP-HCCP/BiVO4 compared to pristine BiVO4.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
Longfei Guo, Noriyuki Okinaka, Lihua Zhang, Seiichi Watanabe
Summary: In this study, ZnFe2O4/SnO2 (ZFO/SnO2) composites were prepared by a solution combustion synthesis method, showing enhanced photocatalytic degradation performance for methylene blue (MB). Characterizations of crystallite and morphology indicated that the introduction of SnO2 significantly improved the photocatalytic activity of ZFO, leading to higher degradation rates of MB.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Environmental
Jiang Wei, Jia Jia, Tong Liao
Summary: One of the challenges in water pollution control is the design of adsorbents with low cost, ultrafast, and selective adsorption of pollutants. Hypercrosslinked-polymers (HCPs) possess abundant microporous structures and advantages such as the ability to manipulate the framework structure, making them highly valuable in the field of adsorption. Three HCPs, polythiophene (Th-1), polypyrrole (Py-1), and polyfuran (Fu-1), were synthesized through a Friedel's alkylation reaction utilizing different functional monomers and demonstrated selective adsorption of dyes based on their charges and release of dyes dependent on solvent and pH conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Jia Yang, Pengfei Jiang, Xiaorui Sun, Sheng Tian, Wei Tian, Huisheng Huang, Jianwei Shi
Summary: In this study, a three-component composite 2Au@1%-ZFO/CN was designed and demonstrated to be an efficient photocatalyst for H2 evolution in triethanolamine aqueous solution under visible-light. The composite was composed of ZnFe2O4 and C3N4 as the main components, with Au nanoparticles acting as active sites and electronic channels. The optimized sample exhibited significantly enhanced H2 evolution rates compared to the unloaded sample, with a visible-light photocatalytic performance.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Applied
Subodh Uttamrao, Shubham Avinash, Shital Haribhau Barange, Pundlik Rambhau. Bhagat
Summary: This study investigated the photocatalytic esterification of levulinic acid to various levulinates and glycerides using a porphyrin-based photocatalyst. The influence of different reaction conditions on the model reaction was examined, and it was found that optimal yields of alkyl levulinates (76%) and glycerides (81%) could be achieved under visible light irradiation. Furthermore, the porphyrin photocatalyst was also effective for the etherification of biomass-derived glycerol with alcohols (methanol/ethanol) (88%) under ambient conditions. These results highlight the importance of porphyrin as a highly reactive, steady, and reusable heterogeneous photocatalyst.
Article
Chemistry, Physical
Mina Najafi, Ali Reza Akbarzadeh, Rahmatollah Rahimi, Mohammad Hossein Keshavarz
Summary: A novel QSPR model was presented to predict the photodegradation average rate of 4-NP and 4-CP by biomolecules. The model achieved high accuracy by calculating metal interaction with ligand and fragment effects, using measured values of 70 porphyrin complexes.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Multidisciplinary
Zahra Gharehdaghi, Rahmatollah Rahimi, Seyed Morteza Naghib, Fatemeh Molaabasi
Summary: In this study, two types of Cu-MOF-based nanocomposites, GO/Cu-TCPP and Fe3O4@Cu-3(BTC)(2), were investigated for loading and pH-sensitive release of doxorubicin (DOX). It was found that GO/Cu-TCPP had a higher adsorption capacity for DOX compared to Fe3O4@Cu-3(BTC)(2). The release of DOX from both nanocomposites was pH-sensitive, with GO/Cu-TCPP releasing a higher percentage of DOX at pH 5 than at pH 7.4. The difference in drug release between the two nanocomposites was attributed to their differences in drug loading capacity. The results indicate that both GO/Cu-TCPP and Fe3O4@Cu-3(BTC)(2) nanocomposites have low toxicity and good biocompatibility.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2022)
Article
Environmental Sciences
M. Jeddi, M. Rabbani, A. Tarlani
Summary: Copper ferrite nanoparticles were synthesized and coated with chlorophyll to enhance their photocatalytic and adsorption properties. The chlorophyll-coated ferrite showed increased photocatalytic performance compared to bare ferrite, effectively removing methylene blue from water.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Ali Amini, Meghdad Karimi, Mahboubeh Rabbani, Vahid Safarifard
Summary: Due to the decrease in environmental pollution and energy crisis, it is necessary to find an excellent solution to utilize visible light with photocatalyst technology. Constructing heterostructure photocatalysts with metal-organic frameworks (MOFs) and graphitic carbon nitride (g-C3N4-Co) is a powerful approach to achieve high performance in visible-light photocatalysis. In this study, a heterostructure photocatalyst TMU-22/g-C3N4-Co, composed of Zn-based MOF and cobalt-doped graphitic carbon nitride, was prepared and showed superior photocatalytic activity in the aerobic oxidation of benzyl alcohol under visible-light irradiation. The enhanced separation of photogenerated electron-hole pairs and increased visible-light absorption were the main factors contributing to its high performance.
Article
Polymer Science
Hossein Shahriyari Far, Mahdi Hasanzadeh, Mina Najafi, Mahboubeh Rabbani
Summary: In this study, a magnetic chromium-based metal-organic framework was synthesized and surface functionalized for efficient adsorption and removal of organic dyes. The composite showed high adsorption capacity and fast kinetics, and could be reused multiple times.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hoorie Lotfi, Mansoor Anbia, Rahmatollah Rahimi, Fatemeh Yazdi
Summary: This study reports the potential of a cost-effective activated carbon/chitosan/zero-valent iron nanocomposite on the adsorption and degradation of phenolic contaminants. The results show that the nanocomposite has high adsorption capacity and removal efficiency for phenol, 2-chlorophenol, and 2,4-dichlorophenol. The Fenton oxidation process was also found to be spontaneous and effective in transforming the contaminants into less hazardous compounds.
Article
Chemistry, Inorganic & Nuclear
Mahdi Sedghi, M. Hosseini-Kharat, Rahmatollah Rahimi, Mahboubeh Rabbani
Summary: This study investigates the photocatalytic behavior of titanium dioxide (TiO2) layers coated on an aluminum alloy (AA5083) substrate. The TiO2/AA5083 composites show enhanced photocatalytic performance, with the TiO2(3)/AA composite prepared at a calcination temperature of 550 degrees C demonstrating the highest activity.
INORGANIC AND NANO-METAL CHEMISTRY
(2023)
Article
Polymer Science
Mina Najafi, Rahmatollah Rahimi
Summary: A novel UiO-66/Cloisite-30B nanocomposite is synthesized and characterized in this study. The nanocomposite shows satisfying efficiency in the removal of dyes, indicating its potential for wastewater treatment.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Multidisciplinary Sciences
Sajedeh Tehrani Nejad, Rahmatollah Rahimi, Mahboubeh Rabbani, Sadegh Rostamnia
Summary: This study focuses on the synthesis of novel nanocomposites with antibacterial activity through a green procedure. The synthesized nanocomposites showed therapeutic effects on breast cancer and exhibited excellent antibacterial properties.
SCIENTIFIC REPORTS
(2022)
Review
Chemistry, Multidisciplinary
Zahra Heravifard, Ali Reza Akbarzadeh, Leila Tayebi, Rahmatollah Rahimi
Summary: Covalent organic frameworks are lightweight, ordered, porous organic polymeric compounds that can be used in various industrial applications. There have been significant advances in their design, synthesis, and applications.
Article
Chemistry, Multidisciplinary
Leila Tayebi, Rahmatollah Rahimi, Ali Reza Akbarzadeh
Summary: A reliable QSPR model was established for predicting the evolution rate of CO2 photoreduction over porphyrin-based MOFs. Cu-PMOF and Co-PMOF were successfully synthesized with high surface areas. Theoretical and experimental results showed satisfactory HCOOH evolution rates for both MOFs.
Article
Environmental Sciences
Hossein Shahriyari Far, Mahdi Hasanzadeh, Mina Najafi, Mahboubeh Rabbani
Summary: This study reports the successful in situ growth of a highly porous bimetal-organic framework (bi-MOF) on organoclay (OC) clusters using a solvothermal method. The obtained hierarchical CoNi-MOF/OC composite exhibited a superior specific surface area of 2046 m(2)/g and a large pore volume of 0.763 cm(3)/g, enabling efficient adsorption of organic dyes. The composite demonstrated high adsorption capacity and selectivity for both anionic and cationic dyes, and showed good reusability and stability after multiple regeneration cycles. These findings provide valuable insights for the design and fabrication of next-generation clay-based adsorbents.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Hossein Shahriyari Far, Mina Najafi, Mahdi Hasanzadeh, Rahmatollah Rahimi
Summary: This study successfully fabricated a highly porous composite of metal-organic framework and clay using 3D printing technology. The composite demonstrated a large specific surface area and showed rapid and efficient removal of organic pollutants.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Hossein Shahriyari Far, Mina Najafi, Mahdi Hasanzadeh, Mahboubeh Rabbani
Summary: In this study, a novel hybrid composite 3D-MXOF structure was proposed, which exhibited high efficiency in removing dye pollutants from wastewater and possessed fast adsorption kinetics and easy recycling process.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
A. Aly, M. Ghali, A. Osman, M. K. El Nimr
Summary: This study reports the discovery of naturally occurring luminescent graphene quantum dots (GQDs) in coconut water for the first time. The GQDs were identified through various measurements and were found to have dual sizes and emit different wavelengths of light. The GQDs were also utilized as an efficient optical sensor for aniline liquid detection.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Zehua Chen, Wencheng Ma, Qinglu Fan, Yanhua Liu, Min Sun, Shuo Wang
Summary: The nanoscale e-VOPO4 materials were successfully prepared by hydrothermal synthesis and calcination, showing high purity and suitable particle size. It exhibited satisfactory electrochemical performance as cathode material for sodium ion batteries, making it a potential candidate for high energy storage systems.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Tao Liu, Yahui Liu, Le Ling, Zhongxi Sheng, Zao Yi, Zigang Zhou, Yongjia Yang, Bin Tang, Qingdong Zeng, Tangyou Sun
Summary: In this paper, a terahertz (THz) micronano device that can switch between bimodal absorption and plasmon-induced transparency (PIT) is proposed. The device consists of layers of graphene, silica, and vanadium dioxide, and has a simple structure, easy tuning, and wide-angle absorption. The device achieves perfect absorption at specific frequencies and is highly sensitive to environmental refractive index. It also has the functions of a three-frequency asynchronous optical switch and slow light effect.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Xiaobo Luo, Songhan Hu, Qiudong Duan, Dacheng Zhou, Jialin Chen, Yugeng Wen, Jianbei Qiu
Summary: The exploration of solar light absorption by a material is important in photonics and optoelectronics. This study reveals the potential of Ba3-xGa2O6:xBi3+ as a promising candidate for various photonic and optoelectronic applications, and demonstrates the use of the material in double-sided laser printing for three-dimensional optical imaging.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Hemin Wang, Yanling Hao, Lele Xiang, Xiaosi Qi, Lei Wang, Junfei Ding, Yunpeng Qu, Jing Xu, Wei Zhong
Summary: This study designed Fe3O4-FeCO3/MWCNTs/RGO MCNCs composites and fabricated large-scale samples using hydrothermal and freeze-drying methods. The microstructural investigation showed that these materials had a mixed-dimensional structure, which improved impedance matching features, polarization, and conduction loss abilities, leading to significantly enhanced electromagnetic absorption properties.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Zhenshan Yu, Hao Chen, Xuequan Chen, Yu-Sheng Lin
Summary: This study presents a silicon dielectric metamaterial (SDM) composed of two outer symmetric semi-circular rings and two inner symmetric split-ring resonators (SRRs). The electromagnetic responses of the SDM device in different modes were studied through numerical simulations and experiments. Increasing the structure height of the SDM device resulted in red-shifted resonances and stronger intensities. This study provides a new design strategy for the development of frequency filtering, polarization switching, and resonance modulation characteristics in THz-wave applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Yiming Qi, Na Zhang, Meng Zong, Yangxianzi Liu, Weixing Chen
Summary: This study prepares dielectric/carbon fiber based nanocomposites wave-absorbing materials using liquid diffusion and high temperature carbonization strategies. By tuning the element type, drying mode, and filling amount, the electromagnetic parameters and absorbing properties can be adjusted. The best synthesized sample shows excellent absorbing performance, making it suitable for a wide range of electromagnetic wave absorption applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Carlos D. Gonzales-Lorenzo, T. K. Gundu Rao, Alberto A. Ccollque-Quispe, Jorge Ayala-Arenas, Monise B. Gomes, Betzabel N. Silva-Carrera, Roseli F. Gennari, Valeria S. Pachas, F. Monzon-Macedo, H. Loro, Jose F. D. Chubaci, Nilo F. Cano, Rene R. Rocca, Shigueo Watanabe
Summary: In this study, CaSiO3 doped with different ppm of Eu was synthesized using the devitrification method. Various physical properties were analyzed, revealing that the intensity and temperature of the high-temperature TL peak increased with higher dopant amounts. Fluorescence measurements indicated the presence of Eu2+ and Eu3+ ions in the samples. EPR spectra confirmed the existence of two defect centers.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Yanning Qu, Xinyang Li, Mei Cui, Renliang Huang, Wanquan Ma, Yunting Wang, Rongxin Su, Wei Qi
Summary: In this study, a new molybdenum disulfide/N,S-doped carbon quantum dots (MoS2/N,S-CQDs) heterojunction with enhanced light absorption and electrons transfer di-functional properties was constructed via a facile one-pot hydrothermal method. The heterojunction showed remarkable efficiencies in degrading methylene blue (MB) and malachite green (MG) in an actual water system under simulated sunlight irradiation. The facile synthetic technique and effective multifunctional properties of the composite have the potential for further research and industrial applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Jiayi Wang, Penggang Ren, Xueyan Zhao, Zhengyan Chen, Yanling Jin, Zengping Zhang
Summary: In this study, a novel homojunction photocatalyst was developed by combining defective g-C3N4 and flaked g-C3N4, which showed excellent degradation performance and cycling stability, and exhibited practicality in several simulation experiments.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Jing Yan, Xiaoxiao Zhao, Weixing Chen, Panbo Liu
Summary: This research presents a self-templated strategy to prepare a spherical superstructure of carbon nanorods through material modification and pyrolysis. The resulting material exhibits a large controllable radius of curvature and shows excellent microwave absorbing properties due to its high specific surface area and mesoporous structure.
MATERIALS RESEARCH BULLETIN
(2024)
Review
Materials Science, Multidisciplinary
Qinglin Zeng, Zepeng Lv, Shaolong Li, Bin Yang, Jilin He, Jianxun Song
Summary: Liquid metal batteries possess stable safety performance, high rate performance, and thermal stability. The electrolyte, an important component of the battery, plays a significant role in achieving these remarkable performance characteristics. This paper reviews the important research progress of liquid metal batteries electrolyte and discusses the influence of different electrolyte types on energy efficiency. It also highlights the limitations and challenges of existing electrolytes and proposes key development directions for liquid metal electrolytes.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Song Wu, Junli Wang, Xuanbing Wang, Di Jiang, Jinlong Wei, Xiaoning Tong, Zhenwei Liu, Qingxiang Kong, Naixuan Zong, Ruidong Xu, Linjing Yang
Summary: In this study, a composite electrode composed of Ti/TiH2/beta-PbO2_Mn3O4@C was fabricated and investigated for zinc electrowinning. The composite electrode exhibited low overpotential, Tafel slope, icorr, and high voltage stability, outperforming most reported Ti-based PbO2 electrode materials. The excellent catalytic activity can be attributed to the low resistance and porous interlayer of TiH2 nanosheets, as well as the addition of Mn3O4@C micro-flakes to the active layer.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
E. Tsoutsoumanos, T. Karakasidis, N. Laskaris, P. G. Konstantinidis, G. S. Polymeris, G. Kitis
Summary: This study investigates the correlation between nanocrystal dimensions and thermoluminescence signal magnitude through simulations conducted in Python. Two mathematical models, OTOR and IMTS, were used to derive theoretical luminescence signals. The obtained results were compared with experimental data and a thorough comparative discussion was conducted.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Vishnu Aggarwal, Sudhanshu Gautam, Aditya Yadav, Rahul Kumar, Bipul Kumar Pradhan, Brajesh S. Yadav, Govind Gupta, Senthil Kumar Muthusamy, Sumeet Walia, Sunil Singh Kushvaha
Summary: Recently, there has been a great demand for highly responsive photodetectors that can detect a wide range of wavelengths. Researchers have successfully fabricated a broadband metal-semiconductor-metal photodetector by integrating sputtered Bi2Se3 with laser molecular beam epitaxy grown GaN film. This photodetector shows high responsivity in both the ultraviolet and near-infrared regions.
MATERIALS RESEARCH BULLETIN
(2024)
