Article
Chemistry, Multidisciplinary
Astita Dubey, Chin Hon Keat, Vladimir V. Shvartsman, Kirill Yusenko, Marianela Escobar Castillo, Ana Guilherme Buzanich, Ulrich Hagemann, Sergey A. Kovalenko, Julia Staehler, Doru C. Lupascu
Summary: The ferroelectricity and narrow electronic bandgap of multivalent codoped Bismuth ferrite nanoparticles are utilized to enhance the photocatalytic activity. Doping with mono- and tri-valent cations increases the spontaneous polarization of the nanoparticles, leading to improved photocatalytic performance.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Oluchi V. Nkwachukwu, Charles Muzenda, Babatunde A. Koiki, Omotayo A. Arotiba
Summary: The study involved the preparation of BiFeO3/GNPs composite material using a simple hydrothermal method, which exhibited enhanced visible light absorbance and increased photocurrent density owing to the addition of graphite nanoparticles. The photocatalytic degradation efficiency of ciprofloxacin using BiFeO3/GNPs was significantly higher compared to BiFeO3 or GNPs alone, showing good stability and reusability in the photocatalytic process.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
A. Cardona-Rodriguez, Edwin Ramos Rodriguez, D. Carranza-Celis, N. Vergara-Duran, A. S. E. da Cruz, O. Moscoso Londono, M. Knobel, A. Reiber, Diego Muraca, Juan Gabriel Ramirez
Summary: The magnetic behavior of BiFeO3 nanoparticles was studied using First-Order Reversal Curve (FORC) and temperature-dependent magnetometry measurements. It was found that below a certain size, the nanoparticles exhibit ferromagnetic-like behavior, while above that size, a paramagnetic contribution dominates.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Physical
N. E. Gervits, A. V. Tkachev, S. V. Zhurenko, A. V. Gunbin, A. V. Bogach, N. A. Lomanova, D. P. Danilovich, I. S. Pavlov, A. L. Vasiliev, A. A. Gippius
Summary: This study investigates the influence of nanocrystal size on the spatial spin modulated structure (SSMS) using various methods, including zero-field NMR spectroscopy. The results show that as the nanocrystal size decreases, SSMS still exists but becomes more harmonic and transitions from an easy axis to an easy plane. Magnetic measurements reveal a significant increase in magnetic properties of nanocrystals close to the cycloid period, likely due to incomplete spin compensation.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Ameerah N. Alqarni, Emre Cevik, M. A. Almessiere, A. Baykal, M. A. Gondal, M. Hassan, Ayhan Bozkurt, Arfa Iqbal, Sarah M. Asiri, Y. Slimani
Summary: This study presents a simple and cost-effective method to synthesize bismuth-doped spinel ferrites nanoparticles Co-Ni/Bi for high-performance electrode fabrication. The cyclic performance of the supercapacitor is highly improved by Bi-doped spinel ferrite nanoparticles, showing a superior specific capacitance and advantageous cyclic stabilities. Moreover, the same electrode exhibits a high energy density at a certain power density.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Physical
P. Dhamodharan, Jian Chen, C. Manoharan
Summary: The study investigated the performance of pristine ZnO and indium doped ZnO thin films as photoanodes in DSSCs, finding that the indium doped films had higher power conversion efficiency, with porous structure and transparency being key factors influencing performance.
SURFACES AND INTERFACES
(2021)
Letter
Materials Science, Ceramics
Pawel E. Tomaszewski
Summary: This comment focuses on the errors in the crystallographic part of the commented paper.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Manel Othman, Ikbel Mallek-Zouari, Hanene Akrout, Najeh Thabet Mliki
Summary: This study investigates the effect of cobalt doping on bismuth ferrite and finds that increasing the cobalt concentration during synthesis can significantly decrease the particle size and increase the band gap of the material. The application of the samples in the photodecomposition of methylene blue under direct sunlight irradiation demonstrates unusual results due to the unique sizes of the samples and the phenomena that can occur at that size scale.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Muhammad Ali Abbasi, Zeeshan Ali, Zahid Qamar, Khurram Shahzad, Humera Khatoon Siddiqui, Muhammad Atif, Zulqurnain Ali, Waqas Khalid
Summary: In this study, lanthanum substituted bismuth ferrite nanoparticles were found to efficiently adsorb doxorubicin (DOX) with a high adsorption efficiency of 93%, likely through electrostatic interaction and substantial diffusion mechanisms. The BFO nanoparticles showed good reusability, making them a cost-effective and eco-friendly solution for dealing with emerging organic contamination of water.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Suyao Man, Xueyang Leng, Jinlong Bai, Sihan Kan, Yanan Cui, Jiaxin Wang, Lingling Xu
Summary: Doping with trivalent samarium (Sm3+) ions is effective for improving the photoelectrochemical performance of bismuth ferrite (BiFeO3) photocathodes for water reduction. The doped samples exhibited significantly enhanced water reduction activity, with the Bi0.95Sm0.05FeO3 composition showing a maximum photocurrent density of 0.1061 mA cm(-2) at 0 V vs. RHE in 0.5 M Na2SO4, which was 5.6 times higher than that of the pristine BiFeO3. The high performance can be attributed to the rational Sm3+ doping, which improves visible light absorption ability, facilitates charge carrier transport kinetics, and hinders the recombination of photogenerated carriers.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
N. H. Shamsudin, S. Shafie, M. Z. A. Ab Kadir, F. Ahmad, Y. Sulaiman, S. A. M. Chachuli, M. C. Razali
Summary: Researchers are developing choices of excellent conductivity and durable anode substrate (metal) for dye sensitized solar cells (DSSCs) with flexible practices in mind. This study proposes the embedment of silver nanoparticles (AgNPs) into titanium dioxide (TiO2) to improve the efficiency of backside illuminated DSSCs. The optimal concentration of AgNPs-TiO2 is found to be 2.0 wt%.
Article
Biotechnology & Applied Microbiology
Astita Dubey, Soma Salamon, Supun B. Attanayake, Syaidah Ibrahim, Joachim Landers, Marianela Escobar Castillo, Heiko Wende, Hari Srikanth, Vladimir V. Shvartsman, Doru C. Lupascu
Summary: Ionic engineering is used to substitute rare-earth elements in BiFe0.95Mn0.05O3 NPs, resulting in morphological changes and improved piezoresponse and magnetic hyperthermia potential. The increment in magnetization has an impact on the hyperthermia results.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
N. Ghazkoob, M. Zargar Shoushtari, I. Kazeminezhad, S. M. Lari Baghal
Summary: In this study, zinc ferrite nanowires, bismuth vanadate nanoparticles, and zinc ferrite nanowires/bismuth vanadate composites were fabricated and their properties were investigated using various analysis methods. The results showed that the composites exhibited strong photocatalytic activity, with the composite containing 20 wt% zinc ferrite showing the highest degradation rate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Yogesh Kumar, Tushar Chhalodia, Paramjeet Kaur Gumber Bedi, P. L. Meena
Summary: Research on dye-sensitized solar cells (DSSCs) is at an advanced stage, with a focus on stability and efficiency. Utilizing nanotechnology-based methods and materials can increase the power conversion efficiency of DSSCs. The photoanode, a critical component of DSSCs, can be modified with different nanostructures to enhance efficiency. This review discusses efforts made by researchers in the past decade to modify the photoanode and explores various nanostructures that improve DSSCs' efficiency.
Article
Chemistry, Multidisciplinary
Yuan Lu, Yilong Yang, Xinyi Fan, Yiqun Li, Dinghua Zhou, Bo Cai, Luyang Wang, Ke Fan, Kan Zhang
Summary: The ability to regulate charge separation is crucial for high efficiency in solar fuel production. By engineering bismuth vacancies and using a new deep eutectic solvent, the charge diffusion coefficient of BiVO4 photoanode can be significantly increased, resulting in improved charge transport efficiency. Loading a cocatalyst further enhances charge transfer efficiency and increases the photocurrent density.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Komal Poonia, Pardeep Singh, Archana Singh, Sourbh Thakur, Quyet Van Le, Tansir Ahamad, Pankaj Raizada, Chuanyi Wang, Lan Huong Nguyen, Van-Huy Nguyen
Summary: This paper reviews the applications of photoelectrocatalysis in wastewater purification and energy recovery. The basics of photoelectrocatalysis, charge kinetics, photoelectrode selection and performance are discussed, along with modification strategies such as heterostructure formation and doping. The paper also presents applications of photoelectrocatalysis in hydrogen production, carbon dioxide reduction, energy production, and microbial fuel cells.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Aastha Dhawan, Anita Sudhaik, Pankaj Raizada, Sourbh Thakur, Tansir Ahamad, Pankaj Thakur, Pardeep Singh, Chaudhery Mustansar Hussain
Summary: Thus far, efforts have been made to develop potential photocatalysts to address environmental degradation and energy crises. Among these, BiFeO3 (BFO) based photocatalysts have gained attention due to their chemical stability and easy extraction, as well as their narrow bandgap of 2.2-2.8 electron volts (eV) that enables efficient visible light absorption. This review provides an overview of conventional heterojunctions and advanced Z-scheme heterojunctions, with a focus on BFO-based Z-scheme heterojunctions, photocatalytic mechanisms, and various applications. The successful construction of BFO-based Z-scheme heterojunctions addresses the limitations of bare BFO photocatalysts and enhances overall light absorption. BFO-based Z-scheme heterojunctions stand as proficient contenders among photocatalytic materials due to spatially separated oxidation and reduction sites and efficient charge migration. They are currently being widely utilized in fields such as pollutant degradation, wastewater treatment, organic synthesis, hydrogen production, and treatment of antibiotics.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Environmental Sciences
Vasudha Hasija, Pardeep Singh, Sourbh Thakur, Van-Huy Nguyen, Quyet Van Le, Tansir Ahamad, Saad M. Alshehri, Pankaj Raizada, Babasaheb M. Matsagar, Kevin C. -W. Wu
Summary: Doping-induced vacancy engineering of graphitic carbon nitride (GCN) with oxygen and sulphur co-doping was performed to activate per-oxymonosulfate (PMS) for sulfamethoxazole (SMX) degradation and H2 production. The co-dopants and N-vacancies synergistically lowered the bandgap, separated electron-hole pairs, and utilized solar energy efficiently. The substitution of sp2 N atom with O and S co-dopants enhanced carrier mobility, increased reactive sites, and facilitated charge-carrier separation. The OSGCN/PMS photo-catalytic system achieved high SMX degradation efficiency and H2 generation rate under visible light irradiation. The study also investigated the intermediates and degradation pathway of SMX.
Review
Environmental Sciences
Shilpa Patial, Vatika Soni, Abhinandan Kumar, Pankaj Raizada, Tansir Ahamad, Xuan Minh Pham, Quyet Van Le, Van-Huy Nguyen, Sourbh Thakur, Pardeep Singh
Summary: Dual-pore covalent organic frameworks (COFs) with hierarchical/heterogeneous porosities and homogeneous porosity have attracted significant research attention. The review focuses on the functions, design strategies, structure properties, and synthesis methods of dual-pore COFs, comparing them to conventional COFs. The identification and construction of dual-pores in COFs, as well as the challenges and prospects of dual-pore engineering, are outlined in detail.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Akanksha Chauhan, Anita Sudhaik, Pankaj Raizada, Aftab Aslam Parwaz Khan, Arachna Singh, Quyet Van Le, Van -Huy Nguyen, Tansir Ahamad, Sourbh Thakur, Pardeep Singh, Abdullah M. Asiri
Summary: The rapid growth of population and industries has caused major issues for environmental resources and energy. Environmental pollution is mainly caused by the discharge of hazardous pollutants into water, leading to a lack of access to clean water. Photocatalysis, particularly using Zinc selenide (ZnSe), has shown to be effective in improving the environment. This review focuses on the structural and optoelectronic properties of ZnSe and its applications in pollutant degradation and water purification, highlighting various strategies to enhance its photocatalytic activity.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Review
Nanoscience & Nanotechnology
Anitao Sudhaik, Sonu, Vasudha Hasija, Rangabhashiyam Selvasembian, Tansir Ahamad, Arachana Singh, Aftab Aslam Parwaz Khan, Pankaj Raizada, Pardeep Singh
Summary: The top environmental problems in the contemporary era include energy shortage, waste resource recycling, and water pollution. Photocatalysis, g-C3N4 has gained attention due to its promising properties and excellent performance. Incorporating g-C3N4 with two or more semiconducting materials via heterojunction formation is an advantageous modification strategy. This review focuses on the photocatalytic applications of S-scheme-based g-C3N4 photocatalysts in pollutant degradation, H2 production, and CO2 reduction.
Article
Chemistry, Physical
Priya Dhull, Anita Sudhaik, Vinit Sharma, Pankaj Raizada, Vasudha Hasija, Neeraj Gupta, Tansir Ahamad, Van -Huy Nguyen, Aejung Kim, Mohammadreza Shokouhimehr, Soo Young Kim, Quyet Van Le, Pardeep Singh
Summary: This review provides an overview of the structure and electronic properties of InVO4 as well as brief discussions on the controlled synthesis routes and modification strategies. The mechanism and photo-degradation efficiency of various InVO4-based photocatalysts for organic pollutants are discussed. The potential applications of InVO4 in the energy and environmental field are summarized, and future perspectives and knowledge gaps are also discussed.
MOLECULAR CATALYSIS
(2023)
Article
Engineering, Environmental
Abhinandan Kumar, Pardeep Singh, Van-Huy Nguyen, Quyet Van Le, Tansir Ahamad, Sourbh Thakur, Lan Huong Nguyen, Pankaj Raizada
Summary: The primary goal of this study was to enhance the photocatalytic performance by integrating defect engineering and heterostructure construction. The researchers successfully constructed a dual vacancy-induced MoS2-x/g-C3N4/Ca-alpha-Fe2O3 system, which exhibited improved optoelectronic features and achieved efficient degradation of sulfamethoxazole antibiotics through enhanced optical absorption and charge migration. Structural studies and analysis of degradation products provided more insights into the photodegradation pathways.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Akshay Chawla, Anita Sudhaik, Pankaj Raizada, Tansir Ahamad, Quyet Van Le, Van -Huy Nguyen, Sourbh Thakur, Ajay Kumar Mishra, Rangabhashiyam Selvasembian, Pardeep Singh
Summary: Recently, BiOX-based photocatalysts have been extensively used in energy and environmental applications. However, the challenges of inadequate reduction activities and positive conduction band minimum (CBM) potential have hindered the performance of BiOX. A potential solution to these constraints is the use of Bi-rich BixOyBrz photocatalysts, which exhibit favorable properties such as a perfect band gap in the visible region and a rich atomic composition. However, some Bi-rich BixOyBrz still face limitations in terms of charge recombination and conduction band position.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Thermodynamics
Keval Chandrakant Nikam, Laxmikant Jathar, Sagar Dnyaneshwar Shelare, Kiran Shahapurkar, Sunil Dambhare, Manzoore Elahi M. Soudagar, Nabisab Mujawar Mubarak, Tansir Ahamad, M. A. Kalam
Summary: The research aims to identify and optimize several parameters that influence the performance and efficiency of a 660 MW supercritical power plant at different operating conditions. The ultimate goal is to contribute to the development of sustainable and environmentally friendly power generation technologies.
Article
Chemistry, Organic
Muhammad Usman Khan, Aliha Fatima, Sehar Nadeem, Faheem Abbas, Tansir Ahamad
Summary: The study investigates the nonlinear optical properties of pyridoquinazolinone-based dyes and their derivatives, providing insights into their potential applications in nonlinear optical response.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Organic
Muhammad Haroon, Tashfeen Akhtar, Muhammad Khalid, Hasnain Mehmood, Muhammad Adnan Asghar, Tansir Ahamad, Sarfraz Ahmed, Ataualpa A. C. Braga
Summary: A series of N-pentylhydrazinylthiazole based compounds (EP1-EP7) were synthesized using a three-step synthetic strategy. The structures of the compounds were confirmed using spectroscopic techniques. The compounds exhibited non-linear optical (NLO) effects and showed potential for various hi-tech applications. EP1 was identified as the best NLO candidate due to its robust response and low band gap.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Organic
Saadia Haq, Uzma Shoukat, Iqra Shafiq, Muhammad Adnan Asghar, Muhammad Arshad, Tansir Ahamad, Rabia Baby
Summary: In this study, two series of benzotrithiophene (BTT) based organic compounds were designed to investigate their nonlinear optical (NLO) properties. The results showed that the thiophene-based derivatives (MS1-MS5) exhibited remarkable NLO properties compared to the pyrrole-based derivatives (MP1-MP5). Among all the derivatives, MS4 and MS5 showed the smallest energy gap and the highest nonlinear polarizations, suggesting their potential applications in NLO-based hi-tech devices.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Engineering, Mechanical
Santosh Patel, Suwarna Torgal, Tanmay Purohit, Ravinder Kumar, Dheerendra Vikram Singh, Sumit Kanchan, Manzoore Elahi M. Soudagar, Tansir Ahamad, M. A. Kalam, Mahaboob Patel
Summary: The limited quantity of conventional energy sources has led to the search for alternative fuels. Biodiesel, specifically derived from waste cooking oil, is considered a potential substitute due to its availability and low cost. This study investigates the effects of variable exhaust valve timing on the performance, emissions, and combustion parameters of biodiesel and its blends in a conventional diesel engine using a numerical method.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Asep Sugih Nugraha, Minsu Han, Aditya Ashok, Yunqing Kang, Jeonghun Kim, Saad M. Alshehri, Tansir Ahamad, Yoshio Bando, Yusuke Yamauchi
Summary: In this study, a novel one-pot chemical reduction method was reported to synthesize mesoporous AuAg nanoparticles. The composition of Au and Ag in the final nanoparticles can be precisely controlled by adjusting the precursor composition. The resulting nanoparticles are characterized by uniform size and well-ordered mesoporous structure. Mesoporous AuAg nanoparticles exhibit remarkable electrocatalytic activity in the electrooxidation of small molecules, surpassing that of mesoporous Au nanoparticles.
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
