Article
Chemistry, Physical
Helapiyumi Weerathunga, Cheng Tang, Aidan J. Brock, Sarina Sarina, Tony Wang, Qiong Liu, Huai-Yong Zhu, Aijun Du, Eric R. Waclawik
Summary: Selective oxidation of alcohols is crucial for fine chemical production, and the photocatalytic oxidation of benzyl alcohol using ZnO nanocrystals was investigated in this study. Different shapes of ZnO nanocrystals displayed varying kinetics for the benzyl alcohol oxidation reaction, with nanocones showing the highest conversion rate. The {10 (1) over bar1} facet of ZnO was found to expose undercoordinated O atoms, leading to the highest adsorption of benzyl alcohol and ultimately resulting in 100% selectivity for benzaldehyde as the product.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Jingcheng Xu, Qianli Wang, Quan Yuan, Huilin Chen, Shunyao Wang, Yang Fan
Summary: In this study, a series of random (GaN)(1-x)(ZnO)(x) structures were constructed and seven machine learning models were trained to predict their band properties. The Random Forest Regressor model was found to be optimal for predicting band gap and band edge position. Feature importance and SHAP analyses revealed that four local microstructures are the main factors influencing the band structure. This work contributes to the understanding of the relationship between microstructure and band properties, and aids in the design of excellent photocatalytic (GaN)(1-x)(ZnO)(x) solid solutions.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Energy & Fuels
Dmitry V. Gvozdyakov, Andrey V. Zenkov, Geniy V. Kuznetsov
Summary: Research has shown that adding a certain amount of isopropyl alcohol to coal-water fuel can significantly reduce ignition delay times, offering potential for effective application in thermal power engineering. Experimental results also demonstrate that adding isopropyl alcohol can result in a higher quantity of small droplets during the atomization of coal-water fuel, optimizing conditions for combustion.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Xiangyao Song, Shiwen Du, Xiangying Xing, Beibei Dong, Zhaochi Feng, Fei Cheng
Summary: Ba2Bi3Ta2O11Cl was successfully prepared via a simple one-step molten salt method, and its crystal morphology and structure were adjusted, leading to a significant improvement in its O-2-evolving activity. In addition, W doping enhances the charge separation efficiency and reduces the energy barrier for water oxidation reaction, thereby improving the activity. Finally, the optimized W-doped sample after molten salt treatment exhibits the highest O-2 production activity (55 μmol h(-1)) without any cocatalyst, which is 6 times higher than that of pristine Ba2Bi3Ta2O11Cl and 2 times higher than that of the undoped Ba2Bi3Ta2O11Cl treated with molten salt, respectively.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Mohadeseh Yarahmadi, Hossein Maleki-Ghaleh, Masoud Emami Mehr, Ziba Dargahi, Fatemeh Rasouli, M. Hossein Siadati
Summary: Doping zinc oxide with strontium improved its photocatalytic activity, with the best performance observed at 3% strontium doping. The band gap of the photocatalyst decreased from 3.34 to 3.17 eV, leading to a significant increase in the degradation of methylene blue dye.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Ming Gong, Mengmeng Huang, Yabo Li, Jianye Zhang, Jung Keun Kim, Jong Seung Kim, Yangjie Wu
Summary: This research developed a method for visible light-driven C-H activation and cyclization by utilizing the synergistic catalytic effect of visible light and photoelectric current. The process is atom-economical, environmentally friendly, and the recovered photoanode can be reused more than ten times.
Article
Materials Science, Multidisciplinary
Miao Wang, Yingying Guo, Zhiqin Zhu, Quan Liu, Tongming Sun, Huihui Cui, Yanfeng Tang
Summary: A facile solvothermal approach was developed with the assistance of DEA to prepare ZnO with tunable morphologies, and the photocatalytic activities of different morphologies were evaluated. The results showed that the volume ratio of DEA/H2O had a significant influence on the morphology of ZnO products, and ZnO polyprisms exhibited enhanced photocatalytic efficiency.
Article
Chemistry, Physical
Ranjitha K. Hariharalakshmanan, Fumiya Watanabe, Tansel Karabacak
Summary: This study demonstrates a novel method to prepare ZnO nanostructures through in situ growth and UV catalytic degradation of organic pollutants at room temperature. Experimental results show that nano-leaf ZnO growth on Zn surfaces can simultaneously achieve efficient degradation of organic dyes.
Article
Materials Science, Ceramics
Ayesha Ahmed Sumra, Muhammad Aadil, Syeda Rabia Ejaz, Saima Anjum, Tahira Saleem, Maryam Zain, Ibrahim A. Alsafari
Summary: In this study, a two-dimensional nanoarchitecture of ZnO was successfully fabricated by reducing zinc nitrate precursor using plant extract. The synthesized ZnO sample was characterized using various techniques, and its photocatalytic and antibacterial properties were evaluated. The results demonstrated that the ZnO nanoarchitecture exhibited excellent photo-mineralization and antibacterial characteristics.
CERAMICS INTERNATIONAL
(2022)
Article
Thermodynamics
Xuemei Deng, Indira Inastiti Noor, Jun Zhang, Jun Gao, Dongmei Xu, Yixin Ma, Lianzheng Zhang, Yinglong Wang
Summary: In this research, VLE experimental data of various binary and ternary systems were determined using a Rose-type circulating distiller, followed by testing thermodynamic consistency and using different activity coefficient models. The excess Gibbs free energy of the binary systems was measured to evaluate non-idealities, and binary interaction parameters of thermodynamic models were calculated for design and optimization of the TGA by-products separation process.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2022)
Article
Engineering, Chemical
Mohammad Amin Arayesh, Ali Hossein Kianfar, Gholamhossein Mohammadnezhad
Summary: In this study, a novel magnetic photocatalyst, Fe3O4/ZrO2/ZnO nanoparticle, was successfully synthesized and demonstrated high efficiency in degrading nitrophenols and exhibiting antimicrobial activity. The nanoparticle achieved a degradation rate of 90% for para-nitrophenol under solar light irradiation and showed significant antibacterial activity against E. coli and S. aureus. Moreover, it exhibited good reusability and high antibacterial activity at low dosages.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Engineering, Environmental
Zahra Kiani, Hamed Aramjoo, Pouriya Mohammadparast, Fatemeh Bahraini, Ali Yousefinia, P. U. Nguyen, Mehdi Fattahi, Sobhan Mortazavi-Derazkola
Summary: This study presents a green synthesis method for producing ZnO/Ag nanoparticles using Launaea acanthodes extract (LAE@ZnO/Ag NPs). The nanoparticles showed efficient performance in pollutant degradation, antibacterial attributes, and anti-cancer drug development.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
N. Khosroshahi, M. Karimi, T. Taghvaei, V. Safarifard
Summary: A magnetic CoFe2O4/Ce-UiO-66 embedded structure composite was designed for the photocatalytic oxidation of aliphatic alcohols under visible-light irradiation and room temperature conditions. Compared to unmodified CoFe2O4, the embedded composite exhibited better visible-light sensitization performance and high chemical stability under reaction conditions, allowing for multiple reuses.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Environmental Sciences
Poonam Kumari, Surojit Pande, Pragati Fageria
Summary: The search for efficient semiconductor catalysts for the degradation of pollutants in contaminated water is an interesting area of research due to growing environmental concerns. Hollow nanomaterials, with their larger surface area, demonstrate significant applications in catalysis. This study introduces a facile hydrothermal synthesis method to produce hollow nanorods of ZnO/ZnS via the Kirkendall effect. The synthesized materials were used for photocatalytic degradation and exhibited higher efficiency compared to bare ZnO, suggesting the potential of hollow nanomaterials in varied catalytic reactions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Ceramics
M. Arellano-Cortaza, E. Ramirez-Morales, S. J. Castillo, L. Lartundo-Rojas, I. Zamudio-Torres, E. M. Lopez Alejandro, L. Rojas-Blanco
Summary: ZnSe/ZnO heterostructures were synthesized using the microwave-assisted hydrothermal method with zinc acetate and zinc nitrate as the source of Zn2+ ions. The incorporation of ZnSe into the ZnO matrix resulted in changes in the size of ZnO crystallites and lattice parameters. Optical and texture analyses showed that ZnSe particles caused a decrease in gap energy and a significant increase in the specific surface area of ZnSe/ZnO heterostructures. ZnSe/ZnO heterostructures synthesized with zinc acetate exhibited better photocatalytic performance in visible light compared to pure ZnO.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Multidisciplinary
Manik Rakhra, Ramandeep Singh, Tarun Kumar Lohani, Mohammad Shabaz
Summary: The incorporation of technology in farming techniques has divided farmers into different camps, with some willing to accept technology while others expressing hesitation and skepticism due to lack of expertise and cost involved. A special Smart Tillage platform has been developed to provide smart-engine based decision-making and deep learning network-powered recommendations to help farmers improve crop yields and scalability.
MATHEMATICAL PROBLEMS IN ENGINEERING
(2021)
Article
Medicine, Legal
Vishal Sharma, Manjot Bains, Rajesh Verma, Neha Verma, Raj Kumar
Summary: This study focuses on using individual characteristics in handwriting to estimate the gender of the writer. Statistical methods were used to analyze the data, and 15 significant characteristics were identified for cost-effective gender estimation. The correct classification rates for females and males were 80% and 76.4% respectively. The likelihood ratio approach was also used to assess the strength of evidence in determining the sex of the unknown person based on these handwriting characteristics.
AUSTRALIAN JOURNAL OF FORENSIC SCIENCES
(2023)
Article
Engineering, Electrical & Electronic
Manik Rakhra, Neha Verma
Summary: This study synthesized and characterized ZnO nanorods using a simple combustion method, exploring the effects of doping on their properties. Results showed that co-annealing at different temperatures can enhance the crystallinity of the nanorods, with higher temperature samples exhibiting better recovery and reaction time.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Food Science & Technology
Manik Rakhra, Sumaya Sanober, Noorulhasan Naveed Quadri, Neha Verma, Samrat Ray, Evans Asenso
Summary: Agricultural automation reduces farmers' physical labor and debt. However, farmers face challenges in finding tools and equipment, so tool renting and sharing become a solution. The study utilizes machine learning models and finds that the decision tree model has the best impact on farmers.
JOURNAL OF FOOD QUALITY
(2022)
Article
Computer Science, Theory & Methods
Wensheng Yan, Mohammad Shabaz, Manik Rakhra
Summary: This study focuses on nonlinear distortion image recognition technology and proposes an image recognition model based on the BP neural network. Experimental results demonstrate the effectiveness of the model, indicating that the BP network driving the number term can improve the recognition efficiency of the system.
JOURNAL OF INTERCONNECTION NETWORKS
(2022)
Article
Food Science & Technology
Manik Rakhra, Amitabh Bhargava, Deepshikha Bhargava, Ramandeep Singh, Astha Bhanot, Abdul Wahab Rahmani
Summary: Different attitudes towards the use of technology in agriculture exist across countries. In underdeveloped nations, farmers are cautious about trying new technologies. Smart Tillage, an advanced framework utilizing machine learning, provides tool and equipment recommendations for farmers.
JOURNAL OF FOOD QUALITY
(2022)
Article
Food Science & Technology
Arun Malik, Gayatri Vaidya, Vishal Jagota, Sathyapriya Eswaran, Akash Sirohi, Isha Batra, Manik Rakhra, Evans Asenso
Summary: This manuscript investigates the recognition and classification of sunflower diseases using deep learning techniques. It proposes a hybrid model that combines VGG-16 and MobileNet for classification purposes, and uses stacking ensemble learning approach. The study compares the proposed model with existing deep learning models based on accuracy using the same dataset.
JOURNAL OF FOOD QUALITY
(2022)
Article
Nanoscience & Nanotechnology
Neha Verma, Vishal Jagota, Arnold C. Alguno, Alimuddin, Manik Rakhra, Pawan Kumar, Betty Nokobi Dugbakie
Summary: This study presents a method for manufacturing gold-doped zinc oxide nanospheres and investigates the use of zinc oxide nanoparticles as photocatalysts for dye degradation. The research finds that gold-doped zinc oxide nanoparticles are the most effective for this degradation.
JOURNAL OF NANOMATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Neha Verma, Vishal Jagota, Alimuddin, Arnold C. Alguno, Manik Rakhra, K. Chanthirasekaran, Betty Nokobi Dugbakie
Summary: In this study, nanostructured ZnO with wurtzite structure was created using the spin coating approach. The impact of doped and codoped films on structural, optical properties, and morphological was examined. It was found that antimony-doped ZnO has a larger band gap than Al and antimony-codoped ZnO, making it suitable for gas sensors and solar cells.
JOURNAL OF NANOMATERIALS
(2022)
Article
Health Care Sciences & Services
Puneet Thapar, Manik Rakhra, Gerardo Cazzato, Md Shamim Hossain
Summary: This study proposes a reliable method for diagnosing skin cancer using deep learning and swarm intelligence algorithms to segment and classify dermoscopy images. The proposed method shows advantages in multiple performance measures.
JOURNAL OF HEALTHCARE ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
G. Murugesan, Tousief Irshad Ahmed, Jyoti Bhola, Mohammad Shabaz, Jimmy Singla, Manik Rakhra, Sujeet More, Issah Abubakari Samori
Summary: Kidney failure occurs when the kidney stops functioning properly, leading to the potential development of chronic kidney disease. Early diagnosis can delay its progression and reduce treatment costs. The use of fuzzy and adaptive neural fuzzy inference systems improves the accuracy of medical diagnostics in determining the stage of chronic renal disease.
BIOMED RESEARCH INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
S. Nonita, Pardayev Abdunabi Xalikovich, C. Ramesh Kumar, Manik Rakhra, Issah Abubakari Samori, Yuselino Maquera Maquera, Jose Luis Arias Gonzales
Summary: This paper introduces a novel implementation of the intelligent water drops (IWD) method for resolving data aggregation issues in heterogeneous wireless sensor networks (WSN). The research demonstrates that by tuning parameters and modifying algorithms, the traffic situations of WSN can be appropriately modified when the aggregating node transmits data to the base station. The proposed improvement, IIWD, takes into consideration the heterogeneity of nodes in practical scenarios, resulting in better accuracy and effectiveness compared to traditional methods in terms of residual energy, dead nodes, payload, and network lifespan.
JOURNAL OF SENSORS
(2022)
Article
Engineering, Multidisciplinary
Youwen Lin, Zhijie Zhang, Vishal Jagota, Manik Rakhra, Bhupesh Kumar Singh
Summary: The application of artificial intelligence technology, particularly LPWAN technology, can enhance the security and efficiency of wireless communication systems, while reducing the frame error rate.
JOURNAL OF ENGINEERING-JOE
(2022)
Proceedings Paper
Computer Science, Artificial Intelligence
Ahmed Al Ahdal, Deepak Prashar, Manik Rakhra, Ankita Wadhawan
Summary: Heart diseases are one of the leading causes of death globally, with early detection and diagnosis being crucial for effective treatment. Machine learning techniques are being used to predict and detect these diseases accurately, with the goal of improving healthcare outcomes.
2021 INTERNATIONAL CONFERENCE ON COMPUTING SCIENCES (ICCS 2021)
(2021)
