Article
Chemistry, Multidisciplinary
Sajina Narath, Supin Karonnan Koroth, Sarojini Sharath Shankar, Bini George, Vasundhara Mutta, Stanislaw Waclawek, Miroslav Cernik, Vinod Vellora Thekkae Padil, Rajender S. Varma
Summary: A facile green synthetic method using Cinnamomum tamala leaves extract as bio-template for the synthesis of zinc oxide nanoparticles was proposed. The well-characterized ZnO NPs exhibited excellent photocatalytic activity against dye molecules, showing strong degradation capability. Multiple characterization techniques were adopted to study the morphological, functional, and structural properties of the synthesized ZnO NPs.
Article
Chemistry, Inorganic & Nuclear
Abhishek Bhapkar, Rishi Prasad, Dipika Jaspal, Mandar Shirolkar, Kh. Gheisari, Shekhar Bhame
Summary: Zinc oxide nanoparticles were successfully synthesized using glycine nitrate solution combustion synthesis. The synthesized nanoparticles exhibited a pure hexagonal wurtzite-like structure of ZnO. They showed effective visible light catalytic activity in the degradation of methylene blue dye, degrading 98% of the dye in 120 minutes with 0.1 g/L of catalyst loading. Photoluminescence studies suggested that the enhanced photocatalytic activity may be attributed to the presence of singly ionized oxygen vacancy or intrinsic defects.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Environmental Sciences
Ramesh Vinayagam, Bhawesh Singhania, Gokulakrishnan Murugesan, P. Senthil Kumar, Ruchi Bhole, Manoj Kumar Narasimhan, Thivaharan Varadavenkatesan, Raja Selvaraj
Summary: Zirconium oxide nanoparticles were successfully prepared using leaf extract, showing tetragonal structure and high crystallinity. These nanoparticles were able to efficiently degrade methylene blue dye under solar irradiation, suggesting their potential application as photocatalysts for dye degradation in wastewater.
ENVIRONMENTAL RESEARCH
(2022)
Review
Chemistry, Medicinal
Wei Liu, Jiahui Ma, He Sun, Xueyu Wang, Guangyue Wang, Yuli Yan, Ye Wang, Yong Li, Yuling Ding
Summary: Kalopanax septemlobus is a traditional herbal medicine in East Asia that has a significant curative effect on rheumatoid arthritis. In the past 13 years, it has become a research highlight for international scholars. This comprehensive review provides a detailed analysis of its chemistry, pharmacology, and toxicity, including the identification of new compounds and their pharmacological effects.
Article
Chemistry, Physical
Sithi Mgidlana, Tebello Nyokong
Summary: This study presented the syntheses of three asymmetrical zinc(II) phthalocyanine (ZnPc) complexes and the hydrothermal synthesis of cobalt tungstate nanoparticles. It was found that covalently linking ZnPc derivatives to cobalt tungstate nanoparticles increased the triplet quantum yield and singlet oxygen quantum yield. Additionally, the nanoconjugates showed higher photocatalytic efficiency for the degradation of methylene blue compared to the ZnPc complexes.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Aljazi Alnoaimi, Naflah Tamimi, Ibrahim Olanrewaju Alade, Abdullah Manda, Badriah Sultan, Sultan Akhtar, Muhammed Fatty, Khaled A. Elsayed, Qasem A. Drmosh
Summary: This study investigates the photocatalytic activity of a ZnO/g-C3N4/ZnS composite system in degrading methylene blue. The composite exhibits enhanced photocatalytic performance compared to individual components, with a 30% ZnO composition achieving a degradation efficiency of 80%.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Multidisciplinary
Damjan Blazeka, Rafaela Radicic, Dejan Maletic, Sanja Zivkovic, Milos Momcilovic, Niksa Krstulovic
Summary: In this work, Ag-doped ZnO nanoparticles were successfully synthesized by pulsed laser ablation of Ag-coated ZnO target in water. The ratio of Ag dopant in ZnO nanoparticles was found to strongly depend on the thickness of the Ag layer on the ZnO target. The synthesized nanoparticles were characterized using various techniques to determine their crystal structure, elemental composition, morphology and size distribution, mass concentration, and optical properties. Photocatalytic studies revealed that the ZnO nanoparticles doped with 0.32% silver showed the highest photodegradation rate of methylene blue under UV irradiation, indicating the significant doping effect on photocatalytic activity.
Article
Chemistry, Multidisciplinary
Vasile Tiron, Mihai Alexandru Ciolan, Georgiana Bulai, Gabriela Mihalache, Florin Daniel Lipsa, Roxana Jijie
Summary: In this study, flower-like ZnO architectures assembled with nanorods were successfully synthesized using Thermionic Vacuum Arc in two operation modes. The morphology and uniformity of ZnO nanorods could be tuned by modifying the operation mode. The results showed that ZnO in the pulsed mode exhibited enhanced photocatalytic performance and better degradation efficiency for target contaminants compared to the direct current mode. The photocatalytic degradation of antibiotic molecules was confirmed by the agar-well diffusion assay, without the formation of secondary hazardous products.
Article
Chemistry, Inorganic & Nuclear
Suresh Sagadevan, Solhe F. Alshahateet, J. Anita Lett, Is Fatimah, Ramesh Poonchi Sivasankaran, Assefu Kassegn Sibhatu, Estelle Leonard, Minh-Vien Le, Tetsuo Soga
Summary: Silver (I) oxide (Ag2O) nanoparticles (NPs) were synthesized by solution reduction. The Ag2O NPs were characterized using XRD, FTIR, SEM, DRS, and DLS techniques. The results showed the structure, shape, energy gap, and functional group variations of Ag2O NPs. The synthesized Ag2O NPs exhibited a mean hydrodynamic diameter of 171 +/- 82.8 nm in water. The photocatalytic activity of Ag2O NPs towards the degradation of Methylene blue (MB) dye under solar light was tested, and a maximum removal efficiency of 91.5% in 70 min was achieved. The photodegradation data followed pseudo-first-order kinetics with a rate constant of 0.0319 min(-1) and a half-life time of 21.72 min.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Aubrey Makofane, David E. Motaung, Nomso C. Hintsho-Mbita
Summary: This study synthesized ZnFe2O4 nanoparticles using a plant extract and demonstrated their potential application in removing dyes and pharmaceutical pollutants. Characterization and performance tests confirmed the stability and efficiency of the nanoparticles for water treatment, highlighting their promising prospects in environmental remediation.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Sulaiman S. A. Al Ghafry, Mohammed Z. Al-Abri, Basim Al Farsi, Faisal Al Marzouqi, Lamia M. Al Farsi, Nur Adilah Roslan, Azzuliani Supangat
Summary: This study successfully synthesized pristine and gallium doped ZnO nanorods using rapid microwave-assisted method, and investigated the effects of different doping levels. The results showed significant changes in the morphology, crystalline size, and surface roughness of the nanorods with Ga doping. The 1% Ga doping sample exhibited significant enhancement in visible light absorption and rapid degradation.
Article
Green & Sustainable Science & Technology
Borhan Albiss, Muna Abu-Dalo
Summary: This study investigated the synthesis, characterization, and photocatalytic performance of zinc oxide/activated carbon fiber nanocomposites prepared by hydrothermal method. The nanocomposites exhibited excellent photocatalytic activity, with nearly 99% degradation of methylene blue in 2 hours under UV irradiation. The enhanced photocatalytic activities were attributed to the high surface area, enhanced UV-light absorption, and reduced charge carrier recombination resulting from the synergistic effect of adsorption and photocatalytic degradation of zinc oxide and activated carbon fiber.
Article
Environmental Sciences
Manh Nhuong Chu, Lan T. H. Nguyen, Mai Xuan Truong, Tra Huong Do, Thi Tu Anh Duong, Loan T. T. Nguyen, Mai An Pham, Thi Kim Ngan Tran, Thi Cam Quyen Ngo, Van Huan Pham
Summary: In this study, Ce3+/Ce4+-doped ZrO2/CuO mixed semiconductor oxide was successfully prepared and showed high photocatalytic activity for the degradation of methylene blue (MB). The doping of Ce3+/Ce4+ in the material increased the photocatalytic activity, by reducing the (e(-)/h(+)) recombination rate and improving charge transfer. The materials were characterized using various techniques.
Article
Chemistry, Physical
Tahira Khatoon, Vishal Singh Chandel, Navshad Alam, Ameer Azam, Seema Srivastava, Salman Khan
Summary: In this study, LaxNi0.5Co0.5Fe2-xO4 nanoparticles were used as catalysts for Methylene Blue degradation. The nanoparticles were produced using the citrate-aided sol-gel auto-combustion method and exhibited homogeneous size distribution. The structural and optical characteristics of the nanoferrites were analyzed using X-ray diffraction and UV-visible reflectance spectroscopy respectively. Morphological and compositional studies were conducted using FESEM and EDX spectra, while BET analysis was used to determine the surface area. Raman Spectroscopy was employed to estimate the vibration parameters. The most efficient catalyst, La0.06Ni0.5Co0.5Fe1.94O4, achieved a 98.69% efficiency in 140 minutes. The use of La3+ substituted Ni0.5Co0.5Fe2O4 nanoferrites as catalysts offers advantages such as high recycling capability, stability, and simplicity of separation using an external magnet.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemistry & Molecular Biology
Juan Lopez-Lopez, Armando Tejeda-Ochoa, Ana Lopez-Beltran, Jose Herrera-Ramirez, Perla Mendez-Herrera
Summary: The assessment of Azadirachta indica, Tagetes erecta, Chrysanthemum morifolium, and Lentinula edodes extracts as catalysts for the green synthesis of zinc oxide nanoparticles (ZnO NPs) was performed. It was found that ZnO NPs produced with Tagetes erecta and Lentinula edodes showed the best photocatalytic activity.
Article
Biotechnology & Applied Microbiology
Josua Markus, Ramya Mathiyalagan, Yeon-Ju Kim, Ragavendran Abbai, Priyanka Singh, Sungeun Ahn, Zuly Elizabeth Jimenez Perez, Joon Hurh, Deok Chun Yang
ENZYME AND MICROBIAL TECHNOLOGY
(2016)
Article
Optics
Esrat Jahan Rupa, Gokulanathan Anandapadmanaban, Ramya Mathiyalagan, Deok-Chun Yang
Article
Optics
O. Kyeong Hee, Esrat Jahan Rupa, G. Anandapadmanaban, M. Chokkalingam, Jin Feng Li, J. Markus, V. Soshnikova, Z. E. J. Perez, Deok-Chun Yang
Article
Optics
Yeon Jae Shim, Veronika Soshnikova, Gokulanathan Anandapadmanaban, Ramya Mathiyalagan, Zuly Elizabeth Jimenez Perez, Josua Markus, Yeon Ju Kim, Veronica Castro-Aceituno, Deok Chun Yang
Article
Optics
Won Jeon Kim, Veronika Soshnikova, Josua Markus, Keun Hyun Oh, Gokulanathan Anandapadmanaban, Ramya Mathiyalagan, Zuly Elizabeth Jimenez Perez, Yeon Ju Kim, Deok Chun Yang
Article
Optics
Jing Lu, Hashmoonah Ali, Joon Hurh, Yaxi Han, Indra Batjikh, Esrat Jahan Rupa, Gokulanathan Anandapadmanaban, Jin Kyu Park, Deok-Chun Yang
Article
Optics
Mohan Chokkalingam, Esrat Jahan Rupa, Yue Huo, Ramya Mathiyalagan, Gokulanathan Anandapadmanaban, Jong Chan Ahn, Jin Kyu Park, Jing Lu, Deok Chun Yang
Article
Optics
Jin Feng Li, Ying-Chun Liu, Mohan Chokkalingam, Esrat Jahan Rupa, Ramya Mathiyalagan, Joon Hurh, Jong Chan Ahn, Jin Kyu Park, Jian Yu Pu, Deok Chun Yang