Article
Biotechnology & Applied Microbiology
Ilham Zulfahmi, Ravika Nila Kandi, Feizia Huslina, Lina Rahmawati, Muliari Muliari, Kizar Ahmed Sumon, Mohammad Mahmudur Rahman
Summary: The rapid expansion of the palm oil industry poses a potential threat to the terrestrial environment and aquatic ecosystems due to the discharge of high volumes of solid and liquid waste substances during oil processing. Phytoremediation using water spinach has shown potential in improving the quality of palm oil mill effluent (POME). Results indicate that water spinach is efficient in reducing COD, nitrate, phosphate, and color in POME up to 75%, with no negative impact on growth performance. However, high concentrations of POME can damage root structures and affect the growth of water spinach over time.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Energy & Fuels
Fatemeh Ziaeifar, Amin Alizadeh, Zahra Shariatinia
Summary: Tri-layered photoanodes were fabricated to enhance the photovoltaic efficiency of dye sensitized solar cells (DSSCs), and different AlMo0.5O3/TiO2 nanocomposites were achieved by adding AlMo0.5O3 nanoparticles. These composites significantly improved the charge transfer in the device and led to enhanced power conversion efficiency.
Article
Chemistry, Physical
K. M. K. Iwasaki, L. C. Fontana, R. De Medeiros, D. Becker
Summary: Electrophoretic deposition is an efficient process for manufacturing films or coatings from colloidal suspensions. The deposition of carbon nanotubes on jute fiber surfaces was analyzed using intermittent high voltage electrophoretic deposition. The addition of sodium dodecyl sulfate to the deposition medium resulted in effective and uniform deposition of carbon nanotubes on the jute fiber surface. This deposition enhanced the electrical conductivity and increased the oxygen functional groups on the jute fiber, making it hydrophobic.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Rajan Singh, Mukul Gupta, S. K. Mukherjee
Summary: TiO2/Ag/TiO2 multilayer films were fabricated using ion-beam sputtering technique, and the effect of different Ag thickness on the films was analyzed. The results showed that increasing Ag thickness can improve the transparency and electrical properties of the films, but it also leads to the phonon confinement effect caused by the decrease in crystallite size.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Environmental Sciences
Shyam Sunder Sharma, Khushboo Sharma, Jyoti Sahu, Jaymin Ray, Saral Kumar Gupta, Saurabh Dalela
Summary: Rare-earth metal-oxide nanoparticles were synthesized and studied as photo-anode materials for dye sensitized solar cells. The nanoparticles exhibited crystalline nature and nano range size. The band-gap values of the nanoparticles indicate nanostructure formation. The optimized nanoparticles showed improved photovoltaic output and device performance compared to unmodified cells.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Saif M. H. Qaid, Hamid M. Ghaithan, Huda S. Bawazir, Abrar F. Bin Ajaj, Khulod K. AlHarbi, Abdullah S. Aldwayyan
Summary: This study aims to synthesize various TiO2 nanocrystals, including nanosheets, nanorods, and nanoparticles, using a rapid hydrothermal method. The synthesized TiO2 nanocrystals exhibit high purity and exposed high-energy facets, resulting in high reactivity and large surface area. The {001} facets dominate in the nanosheets and nanorods, accounting for approximately 80% and 85% of the outer surface area, respectively.
Article
Materials Science, Multidisciplinary
Sujun Guan, Liang Hao, Hiroyuki Yoshida, Takaomi Itoi, Yanling Cheng, Satoshi Seki, Yuta Nishina, Yun Lu
Summary: Fabrication of graphene oxide (GO) on the surface of titania (TiO2) coatings via electrophoretic deposition (EPD) enhances photocatalytic activity and stability. Controllable amount of GO can be achieved by adjusting the EPD time, leading to excellent photocatalytic performance of TiO2/GO composite coatings due to charge transfer effect. The combination of TiO2 and GO shows promising results in terms of stability and efficiency.
Article
Energy & Fuels
Tansir Ahamad, Ali Aldalbahi, Saad M. Alshehri, Salem Alotaibi, Shaykha Alzahly, Zhen-Bo Wang, Peter X. Feng
Summary: Hierarchical bismuth ferrite (BFO) and Ag2O-doped bismuth ferrite (Ag2O/BFO) nanostructures were successfully fabricated in this study and applied in the photoanode of dye-sensitized solar cells (DSSCs) with improved energy conversion efficiency. Doping BFO with silver oxide nanoparticles can enhance electron transportation and reduce photogenerated charge recombination, making it a potential candidate for working electrode materials in DSSCs.
Article
Horticulture
Fan Jiang, Sen Wang, Hengchao Wang, Dong Xu, Anqi Wang, Lihua Yuan, Wei Fan
Summary: Water spinach (Ipomoea aquatica) is an important vegetable in Asia, known for its high nutritional content. Researchers have improved the reference genome of water spinach by integrating PacBio HiFi sequencing and Hi-C technology, resulting in a higher quality assembly with improved gene completeness. This improved genome will serve as a valuable resource for genetic studies and agronomic trait improvements.
SCIENTIA HORTICULTURAE
(2023)
Article
Materials Science, Coatings & Films
Linda Bertel, Rogelio Ospina, Jose Miguel Garcia-Martin, David A. Miranda
Summary: TiO2 thin-films functionalized with specific biomolecules are used to fabricate highly sensitive and selective electrochemical biosensors for disease detection. Among these biosensors, folic acid-functionalized nanomaterials can recognize folate receptors, which are overexpressed in abnormal cells, allowing the detection of tumor cells and photothermal treatment of cancer.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Plant Sciences
Deen Dayal Upadhyay, Ankit Kumar Goyal, Sutanu Maji, Arpita Dwivedi, Gajanan Pandey
Summary: Nano fertilizers (NFs) are an important tool for improving soil fertility, crop productivity, and quality of agricultural products. This study focused on preparing ZnO and TiO2 nanoparticles through green technology and evaluating their effects on black carrot growth, yield, and quality. The foliar application of 5 ppm TiO2 nanoparticles along with 50% recommended dose of fertilizer showed the best results.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Chemistry, Physical
Arunkumar Kathiravan, Mariadoss Asha Jhonsi
Summary: The role of immersion solvents on light harvesting efficiency and photoinduced electron injection in porphyrin/TiO2 interfaces was investigated. The choice of t-BuOH:ACN solvent was found to result in long-lived electrons in H2MP/TiO2 devices.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Farzaneh Khojasteh, Mansour Rezaee Mersagh, Hassan Hashemipour
Summary: The effects of doped nanoparticles and nanocomposites as photoanode on the performance of Dye synthesized Solar Cells were studied using various synthesis methods, XRD, FE-SEM, TEM, FTIR, optical absorption spectra and EIS analysis. The study showed that the photovoltaic properties of DSSCs largely depend on the compounds and structure of photoanodes. The DSSC based on Ag-doped SnO2/TiO2 exhibited the highest conversion efficiency due to lower charge transfer resistance, recombination, and higher short-circuit photocurrent.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Dandan Gao, Hongping Liao, Muhammad Junaid, Xikun Chen, Chunmiao Kong, Qiuping Wang, Ting Pan, Guanglong Chen, Xu Wang, Jun Wang
Summary: Polystyrene nanoparticles (80 nm) have negative effects on the growth and antioxidant defense system of water spinach, but have no significant impact on chlorophyll concentration. These results provide a fresh perspective to examine the implications of polystyrene nanoparticles on edible aquatic plants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Electrical & Electronic
Vinit Kumar Yadav, Amitabha Nath, Abhijit Das, Julaiba Tahsina Mazumder, Mitra Barun Sarkar
Summary: Enhanced photosensing performance was reported for Indium nanoparticles capped TiO2 nanowire array using GLAD technique, showing high ideality factor and improved photoresponsivity. The ON/OFF switching irradiation for the In NPs based photosensor increased with quick rise and fall times.
IEEE ELECTRON DEVICE LETTERS
(2021)
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)