Article
Environmental Sciences
The Ky Vo
Summary: In this study, mesoporous microspheres of Al2O3 @TiO2 with improved adsorption and photocatalytic performance were successfully prepared. The incorporation of amorphous γ-Al2O3 was found to enhance the removal of tetracycline and promote the separation and migration of photo-generated holes and electrons. The study provides a simple and scalable method for manufacturing Al2O3-decorated TiO2 microspheres.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Ceramics
The Ky Vo
Summary: Mo-modified TiO2 microspheres prepared by spray pyrolysis method showed high removal efficiency towards tetracycline antibiotics and exhibited good photocatalytic activity and stability.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Applied
Linlin Xiang, Shunsheng Wang, Long Kuai
Summary: This work presents the synthesis of mesoporous single-atom Pt1/TiO2 microspheres using a polymer micelle-induced method. The obtained catalysts demonstrate high surface area and pore volume, and exhibit superior activity for CO oxidation at low temperatures. The catalysts show a significant improvement of 50-60 °C in CO conversion compared to non-mesoporous catalysts prepared using conventional methods. This study provides a new approach for the development of efficient single-atom catalysts for CO oxidation.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Multidisciplinary
Thanh Tran-Phu, Rahman Daiyan, Xuan Minh Chau Ta, Rose Amal, Antonio Tricoli
Summary: Environmentally friendly Power-to-X (P2X) technologies are vital for sustainably harvesting and storing renewable energy with zero CO2 emission. Flame spray pyrolysis (FSP) emerges as a promising approach for synthesizing catalysts quickly, with implications for industrial engineering applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Kun Lan, Qiulong Wei, Dongyuan Zhao
Summary: This Review discusses the synthesis of novel mesoporous TiO2 materials, with a focus on the monomicelle assembly strategy for controlling the formation of mesostructured TiO2. Typical applications of mesoporous TiO2 in batteries and photocatalysis are highlighted, and the outlook for the synthesis of mesoporous TiO2 with tailored architectures through self-assembly is discussed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Ceramics
Andre L. da Silva, Fabiane J. Trindade, Jean-Lou Dalmasso, Bruno Ramos, Antonio Carlos S. C. Teixeira, Douglas Gouvea
Summary: This research synthesized TiO2 microspheres using ultrasonic spray pyrolysis, which allowed for continuous production of TiO2 nanocrystals and promoted phase stability and limited particle coarsening. The synthesized porous anatase TiO2 microspheres exhibited superior photocatalytic activity, surpassing the commercial standard TiO2 P25 by approximately 60%.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Chemical
Youxu Yu, Zhipu Wu, Jinwang Li, Xun Zhu, Dingding Ye, Yang Yang, Hong Wang, Liang An, Rong Chen, Qiang Liao
Summary: Mesoporous TiO2 films have high potential in photocatalysis and photoelectrochemistry for energy and environment applications due to their high specific surface area and regular mesopore structure. However, the low catalyst loading caused by damage during the preparation process still limits their performance. In this study, a multi-step evaporation-induced self-assembly method is proposed to develop mesoporous TiO2 photoanodes with high catalyst loading. The resulting photoanodes have high catalyst loading without damage, large specific surface area, and retained regular mesopore structure, leading to improved mass transport. The superior performance of the mesoporous TiO2 photoanodes prepared by this method is also demonstrated in a photocatalytic fuel cell, with a significant increase in short circuit current density and maximum power density. This study provides a new approach to preparing high-performance mesoporous TiO2 films for various photocatalytic and photoelectrochemical applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Rongxin Liu, Yang Ren, Huimin Cai, Cheng Zhang, Jinmei Wang, Gaoyang Zhao, Shengguo Zhang
Summary: In this study, Nb-doped TiO2 (NTO) films were fabricated on ITO glass substrates using the ultrasonic spray pyrolysis (USP) method. The effects of deposition temperature and film thickness on the microstructure and electrochromic property of NTO films were investigated. The results showed that increasing the deposition temperature improved the crystallinity and electrochromic properties of the films, while the growth direction and surface morphology of the NTO grains were strongly influenced by the film thickness. The NTO films with a thickness of 300 nm and sheet-structured grains exhibited optimal properties, allowing precise independent spectral control over material transmittance in the visible and near-infrared regions.
Article
Chemistry, Applied
Youssef Doubi, Bouchaib Hartiti, Maryam Siadat, Hicham Labrim, Salah Fadili, Mounia Tahri, Amine Belafhaili, Philippe Thevenin
Summary: Our study focuses on the elaboration of TiO2 thin films using spray pyrolysis technique with different titanium precursors. Characterization techniques including XRD, Raman spectroscopy, SEM, and UV-visible spectroscopy were used to analyze the thin films. The results showed that changing the precursor from titanium chloride to titanium propoxide had a significant impact on the structural, surface, and optical properties of TiO2 thin layers. The experimental and theoretical results obtained in this study are comparable or even superior to recently published research findings.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Physical
N. A. Narewadikar, K. Y. Rajpure
Summary: Polycrystalline titanium dioxide (TiO2) thin films were prepared using spray pyrolysis at various temperatures and showed excellent photoelectrocatalytic performance in the oxidative degradation of model pollutants.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Jinju Song, Dae-han Lee, Seung-mi Oh, Hyun-Kyung Kim, Sunghun Choi
Summary: Crumpled anatase TiO2 nanosheets were successfully synthesized by scalable spray pyrolysis, improving the rate performance of sodium-ion batteries. Even without carbon coating, the anatase TiO2 nanosheet exhibited high reversible capacity (243.9 mA h g-1 at 0.1 mA g-1) and excellent long-term cycling stability (156.25 mA h g-1 after 10,000 cycles). Therefore, the developed synthesis strategy is suitable for the practical, large-scale production of nanosheets, which are promising anode materials for high-performance sodium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
J. G. Cuadra, S. Molina-Prados, Gladys Minguez-Vega, Ana. C. Estrada, T. Trindade, C. Oliveira, M. P. Seabra, J. Labrincha, S. Porcar, R. Cadena, D. Fraga, J. B. Carda
Summary: Transparent TiO2 thin films coated with Ag NPs were synthesized using industrially applicable techniques, without high vacuum. These films showed high transmittance (>80%) and exhibited photocatalytic and antimicrobial properties. The presence of Ag NPs on the TiO2 surface improved the photocatalytic efficiency, resulting in a 99% degradation of Rhodamine B under UV light. The films also showed significant antimicrobial activity, killing 93% of Gram-negative bacteria when irradiated by UV light for 4 hours.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Tzu-Yu Peng, Pei-Yun Tsai, May-Show Chen, Yuichi Mine, Shan-Hua Wu, Chin-Yi Chen, Dan-Jae Lin, Chung-Kwei Lin
Summary: MBG synthesized via spray pyrolysis with various molecular weight of PEG and acid additions showed amorphous and mesoporous structure, with higher molecular weight of PEG improving the mesoporous structure and bioactivity of MBG. Optimized MBG was prepared with suitable concentration of PEG and CH3COOH, showing the best in vitro bioactivity and mesoporous structure.
Article
Chemistry, Applied
Yu Liu, Ai-Ai Yang, Xiao-Sa Zhang, Ze-Bang Sun, Wen-Ze Li, Rui Liu, Yan Wang, Jian Luan
Summary: In this study, a series of novel nanostructures were prepared for the effective capture of radioactive iodine from solvents or vapor. The as-synthesized nanostructures showed high stability and recyclability, and could collect iodine through chemisorption. Furthermore, these nanostructures also exhibited excellent dye photocatalytic properties, offering a potential solution for reducing environmental pollution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jeong-Cheol Seo, Hyunjoung Kim, Yeol-Lim Lee, Sungchan Nam, Hyun-Seog Roh, Kyubock Lee, Seung Bin Park
Summary: This study successfully prepared mesoporous supported nickel catalysts with high activity and stability in DRM reaction through a one-pot synthesis method. By using spray pyrolysis-assisted evaporation-induced self-assembly, the catalysts with highly dispersed nickel active sites were obtained in one step. Furthermore, the performance of nickel catalysts was further optimized by employing phase segregation and exsolution strategies.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Amir Yadegari, Leila Samiee, Saeedeh Tasharrofi, Sanaz Tajik, Alimorad Rashidi, Fatemeh Shoghi, Morteza Rasoulianboroujeni, Mohammadreza Tahriri, Samuel J. Rowley-Neale, Craig E. Banks
Article
Chemistry, Physical
Sedigheh Sadegh Hassani, Leila Samiee, Ebrahim Ghasemy, Alimorad Rashidi, Mohammad Reza Ganjali, Saeedeh Tasharrofi
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Multidisciplinary
S. Sadegh Hassani, M. R. Ganjali, L. Samiee, A. M. Rashidi, S. Tasharrofi, A. Yadegari, F. Shoghi, R. Martel
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2018)
Article
Electrochemistry
S. Sadegh Hassani, M. R. Ganjali, L. Samiee, A. M. Rashidi
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2018)
Article
Electrochemistry
S. Sadegh Hassani, A. Ziaedini, L. Samiee, M. Dehghani, M. Mashayekhi, M. A. Faramarzi
Review
Engineering, Chemical
Leila Samiee, Sergey Gandzha
Summary: The review covers two important approaches to produce methanol from CO2: CO2 hydrogenation and electrocatalytic routes. These processes can recycle CO2 and achieve carbon neutrality to prevent a rise in greenhouse gas concentration in the atmosphere.
REVIEWS IN CHEMICAL ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Leila Samiee, Sedigheh Sadegh Hassani
CURRENT NANOSCIENCE
(2020)
Article
Electrochemistry
S. Sadegh Hassani, M. R. Ganjali, L. Samiee, A. M. Rashidi
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2020)
Article
Chemistry, Multidisciplinary
S. Sadeghhassani, L. Samiee, M. R. Ganjali, A. M. Rashidi
Summary: The sulfur, nitrogen, phosphorus, and boron-doped carbon prepared by pyrolysis using garlic-derived graphene showed promising performance in the oxygen reduction reaction, indicating great potential for practical applications.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Leila Samiee, Esmaeil GhasemiKafrudi
Summary: The study found that using a rate expression containing both CO and CO2 hydrogenation terms can result in higher yield in methanol synthesis. By utilizing a reactor with recycle mode, it is possible to achieve up to 65% methanol yield at certain temperature and pressure conditions, while the kinetic model based on CO and CO2 hydrogenation, along with the proposed configuration, can yield up to 41% methanol in practical methanol plants.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2021)
Article
Environmental Sciences
Leila Samiee, Fatemeh Goodarzvand-Chegini, Amirhossein Khalili-Garakani, Narges Kargari, Nejat Rahmanian
Summary: This paper compares two methods for managing organochlorine waste in a PVC plant, namely high-performance incineration and distillation. The results show that distillation has a better internal rate of return and net present value, as well as significantly reducing greenhouse gas emissions.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Sedigheh Sadegh Hassani, Leila Samiee, Alimorad Rashidi, Mohammad Reza Ganjali
Summary: In this study, sulfur-nitrogen co-doped porous graphene was prepared using various methods, and the electrochemical behavior and material properties were investigated. The results showed that co-doping of S and N significantly enhanced the ORR performance, with pyrolysis being the most efficient preparation method.
JOURNAL OF CHEMICAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Samira Khodabakhsh, Ebrahim Alaie, Lobat Taghavi, Leila Samiee
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION
(2020)
Article
Engineering, Chemical
Azadeh Haghighatzadeh, Babak Mazinani, Mohammadreza Shokouhimehr, Leila Samiee
DESALINATION AND WATER TREATMENT
(2017)
Article
Materials Science, Ceramics
Babak Mazinani, Ali Beitollahi, Abdul Kadir Masrom, Leila Samiee, Zohre Ahmadi
CERAMICS INTERNATIONAL
(2017)
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)