Article
Nanoscience & Nanotechnology
Xiaobo Han, Fang Li, Zhicong He, Yahui Liu, Huatian Hu, Kai Wang, Peixiang Lu
Summary: We demonstrate a double Rabi splitting of 348 meV in an Ag nanocavity embedding of methylene blue (MB) dye layer, which is attributed to the equilibrium state of monomer and dimer coexistence in MB dye. By observing different hybridized states at varying dye concentrations and tuning the size of the Ag nanocube, we provide clear evidence of the existence of a multi-mode strong coupling regime.
Article
Electrochemistry
M. Szkoda, Z. Zarach, M. Nadolska, G. Trykowski, K. Trzci
Summary: In this study, a molybdenum disulfide/tin oxide (MoS2/SnO2) composite was synthesized using a hydrothermal method and evaluated for its photocatalytic performance in the reduction of hexavalent chromium and degradation of methylene blue. The obtained composite exhibited higher photocatalytic activity compared to pure MoS2, making it one of the most photoactive catalysts for methylene blue photodecomposition. Additionally, the composite demonstrated excellent activity in the photoreduction of chromium (VI). These findings highlight the enormous potential of the MoS2/SnO2 composite in photocatalytic applications.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Luis Zamora-Peredo, Josue Ismael Garcia-Ramirez, Amado Carlos Garcia-Velasco, Julian Hernandez-Torres, Leandro Garcia-Gonzalez, Monserrat Bizarro, Adriana Baez-Rodriguez
Summary: This study fabricated ZnO microspheres and Ag/ZnO microspheres using hydrothermal and photodeposition methods, and found that the SERS substrate grown at 9.8 mM during 30 min showed the best SERS activity, with the ability to detect methylene blue at 10(-9) M concentration.
Article
Chemistry, Inorganic & Nuclear
Qiuping Fu, Denghong Shi, Changli Mo, Jie Lou, Shaoqi Zhou, Lei Zha, Jialin Wang, Wei Yan, Jun Luo
Summary: In this study, a porous foam-like composite Cu-BTC@agarose (Cu-BTC@AG) was prepared by compounding high crystallinity Cu-BTC with agarose to solve the problem of difficult recovery when Cu-BTC is used in water treatment. The adsorption behavior of Cu-BTC@AG towards methylene blue (MB) in wastewater was systematically studied, and the adsorption mechanism was explored using isothermal adsorption and adsorption kinetics models. The results showed that the adsorption capacity of Cu-BTC@AG for MB increased with increasing MB initial concentration and reached equilibrium within 120 minutes.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Environmental Sciences
M. Faisal, Md Abu Rashed, Jahir Ahmed, Mabkhoot Alsaiari, Mohammed Jalalah, Saeed A. Alsareii, Farid A. Harraz
Summary: This study focuses on the design and development of ultrafast smart ternary photocatalysts containing SrSnO3 nanostructures, chitosan (CTSN), and silver (Ag) nanoparticles. The results demonstrate that the Ag@CTSN/SrSnO3 photocatalyst exhibits significantly improved efficiency in removing antibiotics and dyes compared to bare SrSnO3, providing a promising and effective solution for environmental pollution management.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Bablu Basumatary, Rajmoni Basumatary, Anjalu Ramchiary, Dimpul Konwar
Summary: Methylene blue degradation in wastewater was achieved effectively through the photocatalytic activity of Ag@TiO2/WO3 nanocomposite, which was prepared by a modified sol-gel precipitation route. The enhanced photocatalytic performance was attributed to reduced bandgap, improved charge carrier transfer efficiency, and plasmonic sensitization of Ag, resulting in a 25 times higher degradation rate compared to commercial DP25 photocatalyst under visible light.
Article
Materials Science, Multidisciplinary
Duygu Akyuz
Summary: Metal oxides are commonly used catalysts for removing dyes and toxins. The synthesized catalyst showed excellent degradation rate and efficiency, as well as high photocurrent density, stability, and recyclability under UV light irradiation.
Article
Environmental Sciences
Nisha Choudhary, Virendra Kumar Yadav, Krishna Kumar Yadav, Abdulaziz Ibrahim Almohana, Sattam Fahad Almojil, Govhindhan Gnanamoorthy, Do-Hyeon Kim, Saiful Islam, Pankaj Kumar, Byong-Hun Jeon
Summary: Textile industries are the largest consumers of synthetic dyestuff compounds, making them a major contributor to organic contaminants in the environment. Conventional treatment methods are not effective in removing dyestuff materials from water systems, highlighting the need for more efficient and environmentally friendly approaches. The development of a montmorillonite/silver nanocomposite shows promising adsorption efficiency and removal of methylene blue.
Article
Engineering, Environmental
Haiwei Guo, Shipeng Wan, Yanan Wang, Weihua Ma, Qin Zhong, Jie Ding
Summary: A direct Z-scheme NiTiO3/g-C3N4 photocatalyst was constructed to enhance the photoreduction efficiency of CO2, showing improved photoactivity and reusability. This work may offer a novel approach for the design and manufacture of Z-scheme photocatalysts for energy conversion and environmental remediation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Wenqiang Liu, Meng Zhou, Heqing Fu
Summary: A ternary Ag@ZnO@Ti3C2 MXene heterojunction (AZM) is synthesized to enhance photocatalytic activity by compensating for MXene's narrow bandgap with ZnO and Ag nanoparticles. The optimized AZM heterojunction photocatalyst shows high degradation efficiency for organic dyes under visible light irradiation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Chang Peng, Zeyuan Kuai, Xuezhi Li, Shanshan Lian, Donglin Jiang, Jianfeng Tang, Ling Li, Ruoxi Wu, Anjun Wu, Shu Chen
Summary: A 3D Ag nanoparticles/Ti3C2Tx/polyacrylamide composite hydrogel was designed as a highly efficient catalyst, utilizing synergistic effects to enhance electron transfer and adsorption capacity. This composite hydrogel demonstrated high catalytic activity in reducing methylene blue and 4-nitrophenol, with the added benefit of easy reusability.
MATERIALS & DESIGN
(2021)
Article
Biochemistry & Molecular Biology
Jose C. Gonzalez-Crisostomo, Rigoberto Lopez-Juarez, Rosario Isidro Yocupicio-Gaxiola, Eric Villanueva, Ethiel Zavala-Flores, Vitalii Petranovskii
Summary: A chabazite-type zeolite was prepared and modified through ion exchange. The modified chabazites showed enhanced photocatalytic activity for dye degradation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
J. G. Morales-Mendez, B. A. Macias-Ayala, A. A. Aguilar-Cardoso, J. G. Limas-Gonzalez, L. Escobar-Alarcon, M. Picquart, E. Haro-Poniatowski
Summary: Pulsed laser deposition is a suitable technique for fabricating noble metal nanostructures on glass substrates. By adjusting the number of laser pulses, different sizes and morphologies of metal nanostructures can be obtained. This study utilizes the density gradient and morphological variation of noble metals to achieve precise deposition of methylene blue and TEM grids.
Article
Chemistry, Physical
Jiafeng He, Gao Song, Xinyue Wang, Ling Zhou, Jumei Li
Summary: The study developed magnetic Fe3O4/GO/Ag composite microspheres for removing organic dyes and antibiotics in water, showing high activity in SERS detection and catalytic reactions. The microspheres exhibited potential applications in trace and quantitative detection of chemicals, as well as in-situ monitoring of the catalytic degradation of organic pollutants.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Bugra Akman, Omur Aras
Summary: In this study, a microreactor coated with different silver content ZnO photocatalyst was used for the treatment of aqueous methylene blue solution under UV-A irradiation. The experiments revealed that 91% of methylene blue degradation was achieved with 1% Ag doped ZnO coated microreactor for a residence time of 2.5 minutes, and 96% removal was attained with the addition of 10% hydrogen peroxide. The study also showed the impact of morphological structures of ZnO-coated surfaces with and without silver on water treatment efficiency.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)