Article
Crystallography
Zhi Zeng, Dongbo Wang, Jinzhong Wang, Shujie Jiao, Donghao Liu, Bingke Zhang, Chenchen Zhao, Yangyang Liu, Yaxin Liu, Zhikun Xu, Xuan Fang, Liancheng Zhao
Summary: The established 2D Bi2Se3/ZnO NWAs heterojunction shows enhanced photoresponsivity and broadband photoresponse, making it an ideal photodetector for broadband detection. The heterojunction exhibits three times the photoresponsivity of bare ZnO nanowire at 377 nm and achieves a broad spectrum response from UV to near infrared region.
Article
Engineering, Chemical
Li-Heng Kao, Kao-Shu Chuang, Hepsiba Niruba Catherine, Jui-Hsiung Huang, Hsiang-Jhih Hsu, Yu -Chin Shen, Chechia Hu
Summary: In this study, MoS2-coupled coniferous T-shaped ZnO photocatalyst was prepared and its improved photocatalytic activity for dye removal was demonstrated. The heterojunction formation between MoS2 and ZnO facilitated electron transfer, leading to enhanced photocatalytic performance. The MoS2@T-ZnO sample could be recycled for at least 5 times, indicating the potential application of MoS2 coupling in improving ZnO photocatalysis.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Environmental Sciences
Saravanan Murugesan, Vigneshwar Sasibabu, Gautham B. Jegadeesan, Ponnusami Venkatachalam
Summary: This study presents the photocatalytic efficiency of ZnO-CeO2 nanocomposites for the degradation of a model Reactive Black (RB) dye. Addition of CeO2 to ZnO resulted in lower band gap energy and enhanced oxidation of RB dye.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Yasir, Milan Masar, Tomas Sopik, Hassan Ali, Michal Urbanek, Jan Antos, Michal Machovsky, Ivo Kuritka
Summary: ZnO/WO3/Pt heterojunctions were successfully prepared via a hydrothermal growth method followed by spraying, and their photocatalytic performance was evaluated. The results showed that the samples with different morphologies had high degradation rates for estriol hormone. This study provides a new insight into the remediation of persistent bio toxicants.
Article
Engineering, Chemical
Xueqin Yuan, Fei Pei, Xiaolin Luo, Huanting Hu, Huaming Qian, Pin Wen, Kangkang Miao, Sifan Guo, Wei Wang, Guodong Feng
Summary: The fabrication of heterojunction structure, such as ZnO/Au@Cu2O, significantly enhances the photocatalytic degradation efficiency of organic dyes, surpassing other catalysts. The heterostructure not only broadens the visible light absorption range, but also promotes efficient charge separation to generate hydroxyl and superoxide radicals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Xiaoqian Ai, Shun Yan, Ligang Ma
Summary: In this study, a hierarchical ZnO microsphere precursor was prepared using a hydrothermal method, and a controllable morphology ZnO catalyst was produced through annealing at different temperatures. The catalyst annealed at 400 degrees C showed the best photocatalytic activity for the degradation of dye molecules, and its structure was confirmed to be a 2D cellular network composed of two-dimensional nanosheets through electron microscopy measurements.
Article
Environmental Sciences
Vishal Sharma, Ajay Kumar, Ashish Kumar, Venkata Krishnan
Summary: The study presents a novel 2D ternary photocatalyst ZnO-Bi2WO6-Ti3C2 prepared through a two-step electrostatic assembly route, which demonstrated high efficiency in degrading the colorless pharmaceutical pollutant ciprofloxacin under natural sunlight irradiation, with a maximum degradation rate of around 77% in 160 minutes. Mechanistic investigation revealed the significant role of MXene in separating photogenerated charges within the photocatalyst.
Article
Spectroscopy
Jiyong Zhang, Xinru Xu, Wentao Zhang, Yi Huang, Peicong Zhang
Summary: In this study, Co2+-doped ZnO nanoarray photocatalyst was prepared using a hydrothermal process, and the effects of Co2+ doping amount and hydrothermal temperature on the structure and performance of the nanoarray were investigated. The results showed that the 2% Co2+-doped ZnO nanoarray exhibited excellent photocatalytic activity under visible light, and maintained good recyclability after multiple cycles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Biotechnology & Applied Microbiology
Rosendo Lopez Gonzalez, Orbelin de la Fuente, Ruth Lezama Garcia, Melina del Carmen Uribe Lopez, Patricia Quintana Owen, Maria Carmen Hidalgo Lopez, Mayra Angelica Alvarez Lemus
Summary: Phenol and its derivatives pose a serious environmental concern, but zinc oxide-based photocatalysts show promise in addressing this issue. ZnO nanoparticles, synthesized through precipitation and calcination methods, exhibited good photocatalytic activity under visible light. The study also found that the generation of hydroxyl radicals decreased with the reuse of ZnO, likely due to the presence of adsorbed by-products on its surface.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
Lakshmi Krishnasamy, Kadirvelu Krishna, Sivakumar Subpiramaniyam
Summary: Polyacrylonitrile (PAN)-based-modified zinc oxide (ZnO) nanofibers were synthesized and evaluated for their photocatalytic degradation of the herbicide atrazine. La-doped ZnO PAN nanofibers showed larger diameter and higher catalytic activity, achieving 98% degradation efficiency within 1 hour.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Renu Yadav, Tejpal S. Chundawat, Praveen K. Surolia, Dipti Vaya
Summary: Photocatalytic degradation of dyes using metal oxides and their composites is an effective method for removing pollutants from wastewater systems. The coupling of metal oxides increases the efficiency of the process, thanks to their ability to absorb broad spectrum light, operate quickly, and exhibit natural p-n characteristics. In this study, binary and ternary nanocomposites of Copper Oxide/Zinc Oxide (CuO/ZnO) and beta cyclodextrin (beta-CD) were prepared using the sol-gel method. The synthesized materials were characterized using various techniques, and their photocatalytic performance was tested using model textile dyes. The addition of beta-CD improved the efficiency of the catalyst and reduced electron hole recombination. The beta-CD-CuO/ZnO nanocomposite exhibited superior photocatalytic activity compared to CuO/ZnO, with degradation efficiencies of up to 89.15% and 79.90% for MB and MG dyes, respectively, after 180 minutes of irradiation.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Environmental Sciences
Elham A. A. Alzahrani, Arshid Nabi, Majid Rasool Kamli, Soha M. M. Albukhari, Shaeel Ahmed Althabaiti, Sami A. A. Al-Harbi, Imran Khan, Maqsood Ahmad Malik
Summary: Removing organic pollutants, textile dyes, and pharmaceutical wastes from water bodies is crucial for a safe environment. This study developed semiconductor zinc oxide nanoparticles (ZnO NPs) and plasmonic Ag-supported ZnO nanocomposites (ZnO-Ag) using a bio-approach as an alternative to hazardous synthesis methods. The ZnO-Ag nanocomposite exhibited enhanced photocatalytic activity for the degradation of methylene blue (MB) dye due to the presence of plasmonic Ag NPs and the surface plasmon resonance (SPR) effect. The research provides valuable insights for the future application of noble metal-modified nanocatalysts in water treatment.
Article
Environmental Sciences
Priya Dhull, Anita Sudhaik, Pankaj Raizada, Sourbh Thakur, Van-Huy Nguyen, Quyet Van Le, Naveen Kumar, Aftab Aslam Parwaz Khan, Hadi M. Marwani, Rangabhashiyam Selvasembian, Pardeep Singh
Summary: Over the past decades, industrialization has led to the discharge of harmful pollutants into the environment, causing negative impacts on humans and ecosystems. ZnO-based photocatalysts show potential in treating such pollutants, but their efficiency is limited by issues like charge carrier recombination and photo corrosion. In this review, the combined process of sonocatalysis and photocatalysis, known as sonophotocatalysis, is explored to enhance the overall efficiency. By producing high reactive oxygen species (ROS), sonophotocatalysis improves the oxidation of pollutants and shows promise in wastewater remediation.
Article
Chemistry, Physical
Samvit G. Menon, A. K. Bedyal, Trilok Pathak, Vinay Kumar, Hendrik C. Swart
Summary: Highly efficient and reusable Sr4Al14O25: Eu2+, Dy3+@ZnO nanocomposites were developed for the photocatalysis of toxic pollutants from aqueous systems. The materials exhibited excellent photophysical and photocatalytic properties, degrading pollutants rapidly under UV-Visible irradiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Shahid Iqbal, Naveed Ahmad, Mohsin Javed, Muhammad Azam Qamar, Ali Bahadur, Shahid Ali, Zahoor Ahmad, Rana Muhammad Irfan, Guocong Liu, Muhammad Bilal Akbar, Muhammad Abdul Qayyum
Summary: In this study, a series of ternary composites were synthesized by integrating 7% silver-mixed ZnO nanoparticles with sulfur-doped graphitic carbon nitride in different proportions. The unique ternary composite between Ag/ZnO and S-g-C3N4 was found to generate a large number of catalytic active sites for photocatalytic degradation. The synergistic effects of the ternary composite enhanced photocatalytic activity and demonstrated successful photo-corrosion resistance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Muhammad Haris Azhar, Tayyaba Noor, Naseem Iqbal, Neelam Zaman, Sarah Farrukh
Summary: This study uses a novel adsorbent Metal Organic Framework (MOF) and its composites to adsorb CO2. Experiment results show that 5 wt% g-C3N4/Ni-BDC MOF exhibits the highest adsorption capacity.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ayumu Nodera, Shinya Aikawa
Summary: In this study, a CO2 sensor capable of low-temperature operation was fabricated using an open-channel-type thin-film transistor structure with a polar surface of an oxide semiconductor. The sensor showed a sensitivity 2.9 times greater than that under an inert N2 atmosphere at an operating temperature of only 150 degrees C. The results suggest that TFTs fabricated with polar surfaces of oxide semiconductors are useful for gas-sensing applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Bindhyabasinee Mishra, Jyotirmayee Nanda, Subhra S. Brahma, K. J. Sankaran, R. Sakthivel, S. Ghadei, S. Suman
Summary: In this study, a series of polycrystalline mixed spinel ferrites were synthesized and characterized. The Mg0.5Zn0.5La0.05Fe1.95O4 ferrite showed the best response and recovery time, indicating its potential as a material for LPG sensing.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Rajashree Panda, Mitrabhanu Behera, A. Arun Kumar, Dhananjay Joshi
Summary: Rare earth doped aluminate-based phosphors are preferred over sulfide-based phosphors. The unique luminescence features of lanthanide-based materials are being utilized for multidisciplinary research and inventive applications. The past years have seen an increase in research interest in aluminate-based phosphors, leading to improvements in their long-lasting phosphorescence and phosphorescence efficiencies. Combustion synthesis route is an efficient technique for preparing nano-phosphor due to its simplicity and cost-effectiveness.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Younes Zohrabi
Summary: Water is essential for the survival of living organisms, but industrialization has led to contamination of water sources with heavy metals and harmful pollutants. Magnetic nano ferrites have shown potential in effectively removing heavy metals from water due to their magnetic characteristics, high surface area, surface active sites, chemical stability, and ease of modification. This review explores recent literature on the synthesis and application of magnetic ferrites for removing heavy metals from water, aiming to provide a comprehensive understanding for future research.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Baolin Liu, Chenxin Xie, Guanglei Qian, Lishan Zhou, Chenglei Zhang, Lingzhi Zhu
Summary: In this study, a self-cleaning CuO-PdO-Pd/Ti membrane has been developed for the removal of small-sized pollutants. The membrane exhibited superior removal ability and permeability compared to conventional membranes, and maintained high efficiency even after repeated tests. The CuO-PdO-Pd/Ti membrane also showed excellent removal efficiency when treating real wastewater, indicating its high potential for practical applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Debabrata Panda, Akhilesh Kumar Sahu, Krunal M. Gangawane
Summary: A variety of hierarchical nanoporous silica aerogels were synthesized from well-dispersed silica sols, exhibiting diversified particle distributions and excellent thermal properties. The silica aerogels showed low thermal conductivity and high-temperature resilience. Surface modification and dilution of silica sols further improved the thermal resistance of the aerogels. The resilient skeleton structure developed from tiny particles effectively restricted heat dissipation and maintained the porous network at high temperatures.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Hardy Shuwanto, Hairus Abdullah, Young Ku, Jenni Lie
Summary: In this study, a defective system of V-doped Fe2O3 with Pt as a cocatalyst was used for photoelectrochemical water oxidation. The defects in the VFPt-2.5 photoanode were characterized by XPS and EPR analyses. The SEM and TEM analyses revealed that the electrodeposited V-doped alpha-Fe2O3 had a nanosized morphology with an average diameter of 12 nm and a thickness of 300 nm. Under light irradiation, the VFPt-2.5 photoanode achieved a remarkable onset potential and photocurrent density. The stability test showed that Pt helped overcome the charge recombination caused by surface states.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Reza Gholipur, Hemin Mohammed Ali Khalifa, Khatereh Afrouzeh
Summary: Developing doped cathode materials is crucial for achieving low cost and high-performance energy storage. LiMn1.977(Ce, Cu, Ti, CeCuTi)0.023O4 nanoparticles show unmatched high structural stability, capacity, and safety during charge/discharge cycles. Ti-doped LiMn2O4 cathode calcined at 700 degrees C demonstrates the highest capacity and retention when multi-walled carbon nanotubes are added. The presence of titanium increases the porosity for reversible lithium storage and the dielectric constant.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
T. Amutha, M. Rameshbabu, S. Sasi Florence, G. Ramalingam, S. Muthupandi, K. Prabha
Summary: This research provides an overview of the structural analysis and magnetic characteristics of dilute magnetic semiconductor oxides (DMSOs) based on binary metal oxide nanomaterials with different ferromagnetic or paramagnetic dopants. The coprecipitation method was used to create nanoparticle samples, and the results showed certain ferromagnetic behavior and increased magnetic properties.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Preeti Kumari, Vipul Srivastava, Ramesh Sharma, Hamid Ullah
Summary: In this study, the rare-earth ferrites perovskite RFeO3 (R = Pr, Nd) were investigated for their various properties including structural, electronic, magnetic, optical, thermodynamic, and thermoelectric behavior. The study found that these materials exhibit half-metallic behavior under certain conditions, and their optical and thermoelectric properties were evaluated, making them potential candidates for spintronic devices and UV absorbers.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Shuting Yuan, Tianchi Wang, Tian Feng, Jian Kong
Summary: In this study, Fe/Fe3O4/C hollow electromagnetic wave absorbers were prepared using hollow ceiba fibers as templates. The proposed hollow structure could reflect and scatter electromagnetic waves multiple times, leading to significant energy consumption. The impedance matching of magnetic materials and biochar enabled the joint absorption of magnetic and dielectric losses to absorb electromagnetic waves.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
G. R. Mamatha, B. R. Radha Krushna, J. Malleshappa, S. C. Sharma, Satish Kumar, C. Krithika, Nandini Robin Nadar, Dileep Francis, K. Manjunatha, Sheng Yun Wu, H. Nagabhushana
Summary: Nanostructured SrAl2O4:Tb3+/M (M = Li+, Na+, K+, Ca2+, Bi3+) green nanophosphors were synthesized using an environmentally friendly combustion process and Areca nut as a sustainable fuel source. The introduction of alkali metal co-dopants optimized the luminescent intensity and showed potential for data security applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Tomoyuki Tachibana, Akihiro Yabuki
Summary: A one-step thermal-reduction method was used to synthesize copper sulfide films with different compositions and pillar-like structures, through adjusting the sulfur ratio and incorporating excess sulfur during the synthesis process.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Mahdy, I. K. El Zawawi, Manal Mounir Ahmad
Summary: Pure PVA and its nanocomposites with CuO and/or CoFe2O4 films were prepared and characterized. The optical properties of the films can be modulated by controlling the percentage of CuO and/or CoFe2O4. The nanocomposites exhibit good ferromagnetic behavior, making the prepared films potentially useful in antenna system miniaturization and flexible magneto-electronic applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)