Article
Environmental Sciences
Nadeem Raza, Waseem Raza, Hajera Gul, Ki-Hyun Kim
Summary: The novel heterostructured photocatalyst (ZnO-ZnTe) exhibit efficient photocatalytic performance for the removal of azo dye, showing high potential as a cost-effective and green remediation technique in water treatment processes.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Thi Huong Pham, Man Hieu Tran, Thi Thu Hien Chu, Yusik Myung, Sung Hoon Jung, Mitesh G. Mapari, Kim Taeyoung
Summary: ZnO-loaded g-C3N4 (ZnO/CN) heterojunction photocatalyst was used for enhanced photooxidation of tetracycline (TC) and CO2 conversion. The heterojunction structure of ZnO/CN improved the light absorption range and electron/hole separation rate, resulting in a 92.6% degradation rate of TC within 60 min and a CO production rate of 7.68 μmol/g/h. The rate constants of TC degradation by ZnO/CN were higher than that of CN, demonstrating the advantage of heterojunction photocatalyst. The modified ZnO/CN exhibited superior degradation performance of TC and higher CO2 conversion rate.
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Sheraz Yousaf, Sonia Zulfiqar, Muhammad Imran Din, Philips O. Agboola, Mohamed F. Aly Aboud, Muhammad Farooq Warsi, Imran Shakir
Summary: The study synthesized ZnO-NiO/rGO nano-hybrid for photocatalytic degradation of organic pollutants, with characterization showing excellent efficiency in degradation, making it a durable candidate in the field of catalysis.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Nanoscience & Nanotechnology
Anh-Tuan Vu, Van Hung Mac, Thanh Hung Nguyen, Thu Huong Nguyen
Summary: Carnation-like ZnO nanoparticles were successfully synthesized by precipitation method and used for dye degradation. Ag-ZnO composites with uniform distribution of Ag nanoparticles on ZnO petals were also obtained, which exhibited improved catalytic ability. The impact of Ag content on the structure and performance of the composites was investigated, and the 5Ag-ZnO sample showed the highest surface area, pore volume, and the lowest energy band gap (Eg).
Article
Engineering, Environmental
Hongyi Tang, Xiao'ai Luo, Wenting Li, Yue Pan, Siqi Wang, Hao Ma, Yu Shen, Ruimei Fang, Fan Dong
Summary: In this study, a in-situ method was designed to construct a ZnO/ZnAl-LDH heterojunction catalyst loaded with metallic Ag. The optimal catalyst exhibited high photocatalytic performance, with efficient removal of NO pollutant and significant inhibition of toxic NO2 generation. This high activity can be attributed to the formation of Ag/ZnO/ZnAl-LDH heterojunction, which promotes charge separation and transfer, and the unique property of Ag nanoparticle with localized surface plasmonic resonance, enhancing light absorption capacity and accelerating charge transfer.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Jiaxiu Guo, Ting Shen, Juan Liang, Shulin He, Yue Jing, Yinghao Chu, Wanglai Cen
Summary: In this study, an N-doped BiOCl photocatalyst was prepared and its performance in photocatalytic degradation of NO was investigated. The results showed that N doping could modify the surface morphology of BiOCl, increase its specific surface area, and enhance light absorption. The N-doped BiOCl exhibited high removal efficiency of NO under all-light irradiation and demonstrated good stability and recyclability.
Article
Engineering, Environmental
Mahboubeh Rabbani, Javad Shokrayian, Rahmatollah Rahimi, Rezvaneh Amrollahi
Summary: Zinc oxide and doped zinc oxide nanorods were successfully synthesized using a simple template-free precipitation technique, with meso-tetrakis (4-sulfonatophenyl) porphyrin immobilized on the zinc oxide nanorods. The photocatalytic activity of TPPS/ZnO was found to be higher than that of pure zinc oxide and doped zinc oxide under visible light irradiation, as revealed by various characterization techniques and degradation studies of methylene blue.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Pham Thi Thu Hoai, Tran Dai Lam, Nguyen Thi Mai Huong, Mai Thi Van Anh
Summary: This study demonstrates that silver-doped titanium dioxide (Ag/TiO2) photocatalyst can effectively decompose ethylene gas (Eth), a major factor causing fruit over-ripening and damage. The doping of silver improves the optical and light absorption properties of Ag/TiO2, enhancing the photocatalytic decomposition of Eth. The relative humidity and gas flow rate also play a role in the decomposition process, and Ag/TiO2 exhibits good reusability.
Article
Chemistry, Applied
Omar A. Mbrouk, Mohamed Fawzy, Heba M. Elshafey, Mona Saif, Hoda Hafez, Mohamed Sabry A. Abdel Mottaleb
Summary: Plasmonic Pd-ZnO nano photocatalysts synthesized via a green chemistry approach show innovation in visible-light-induced photocatalysis for photobiogas production from organic dye pollutants.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
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
Materials Science, Ceramics
Muhammad Siddiq, Anmar Ghanim Taki, Muhammad Aadil, Shamroza Mubarik, Eric W. Cochran, Sonia Zulfiqar, Abdallah A. A. Mohammed, Sana Ijaz
Summary: The facile microwave approach was used to synthesize silver-doped CuO and bare CuO photocatalysts. The effects of silver doping on the texture, microscopic characteristics, crystal structure, bandgap, electrical conductivity, and charge carrier separation were evaluated. The results showed that the ACO photocatalyst, with nanostructured and narrow bandgap features, exhibited better antibacterial performance compared to the BCO photocatalyst. The photoinduced charge carriers in the ACO photocatalyst were shown to separate at a maximal extent, indicating their facile transport. The tailored features of the ACO photocatalyst enabled it to efficiently kill bacteria and mineralize dye.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Xuelian Li, Saleem Raza, Changkun Liu
Summary: Electrospun TiO2@Ag@Cu2O nanofibers photocatalyst exhibits excellent visible light catalytic degradation performance, achieving a degradation efficiency of 99% for methylene blue within two hours. The combination of surface plasmon resonance effect of Ag and Z-scheme heterojunction structure contributes to the enhanced efficiency of the photocatalyst.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
M. J. Kadhim, M. A. Mahdi, J. J. Hassan, Ahmed S. Al-Asadi
Summary: Zinc oxide (ZnO) nanorod thin films were prepared by CBD and silver (Ag) nanoparticles were synthesized on the surface using electrochemical methods. The average particle size of the Ag/ZnO/glass core/shell nanostructure was 20 nm, exhibiting photocatalytic activity in degrading methylene blue dye under visible light. Annealed Ag/ZnO core/shell nanostructure showed improved degradation efficiency, with specific capacitance of the electrodes remaining at approximately 99%.
Article
Materials Science, Ceramics
Muhammad Aadil, Sonia Zulfiqar, Muhammad Farooq Warsi, Philips O. Agboola, Imran Shakir, Muhammad Shahid, Najeeb Fuad Al-Khalli
Summary: In this study, mesoporous and macroporous nanosheets of Ag.Co3O4 were successfully synthesized with high catalytic activity for efficient removal of toxic dyes under natural sunlight. The exceptional activity of Ag.Co3O4 sample is attributed to its novel bimodal porous structure, high surface area, narrow bandgap, good electrical conductivity, and low charge transfer resistance, showing great potential for eliminating harmful dyes from industrial effluents.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Environmental
Rabiatul Aliah Mahmud, Khozema Ahmed Ali, Lutfi Kurnianditia Putri, Yoshitada Morikawa, Abdul Rahman Mohamed
Summary: Photocatalysis using renewable resources like sunlight is an eco-friendly method for reducing greenhouse gases. This study focused on defective ZnO nanoparticles for carbon dioxide adsorption and activation in photocatalytic reactions. The nanoparticles were synthesized by controlling the concentration of NaOH as the precipitating agent. The rough surface of ZnO, formed through heating treatment, effectively removed attached inorganic molecules and was observed using TEM analysis. Optimal defects were achieved by varying NaOH concentrations, resulting in enhanced methane production compared to commercial ZnO. Furthermore, the catalyst demonstrated reusability with only a 7.7% performance reduction after 4 cycles. This study proposes a novel mechanism for CO2 photoreduction using defective ZnO nanoparticles, which could contribute to the long-term sustainability of the industry.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Hairui Liu, Man Li, Jien Yang, Chunjie Hu, Jun Shang, Haifa Zhai
MATERIALS RESEARCH BULLETIN
(2018)
Article
Materials Science, Multidisciplinary
Min Li, Xu Qian, Ai-Dong Li, Yan-Qiang Cao, Hai-Fa Zhai, Di Wu
Article
Chemistry, Multidisciplinary
Jien Yang, Qiong Zhang, Jinjin Xu, Hairui Liu, Ruiping Qin, Haifa Zhai, Songhua Chen, Mingjian Yuan
Article
Materials Science, Multidisciplinary
Haifa Zhai, Jingjing Qi, You Tan, Liping Yang, Hongjing Li, Yingbo Kang, Hairui Liu, Jun Shang, Ho Seok Park
APPLIED MATERIALS TODAY
(2020)
Article
Materials Science, Multidisciplinary
Muhammad Munir Sajid, Naveed Akhtar Shad, Amir Muhammad Afzal, Yasir Javed, Sadaf Bashir Khan, Nasir Amin, Attaullah Shah, Imran Yousaf, Haifa Zhai
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2020)
Article
Chemistry, Physical
Muhammad Munir Sajid, Naveed Akthar Shad, Yasir Javed, Sadaf Bashir Khan, Zhengjun Zhang, Nasir Amin, Haifa Zhai
SURFACES AND INTERFACES
(2020)
Article
Engineering, Electrical & Electronic
Muhammad Munir Sajid, Sadaf Bashir Khan, Yasir Javed, Nasir Amin, Naveed Akhtar Shad, Zhengjun Zhang, Haifa Zhai
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Chemistry, Physical
Ji-Zhou Kong, Chen Li, Xin-Yu Sun, Yan Xuan, Hai-Fa Zhai, Ai-Dong Li, Qian-Zhi Wang, Fei Zhou
Summary: Inserting TiO2 and HfO2 composite oxides into CrN coatings via ALD can significantly improve their microstructure, mechanical, tribological, and electrochemical corrosion properties. The synergistic effect of TiO2 and HfO2 blocks defect propagation and corrosive media migration, delivering outstanding anti-corrosion protection.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Hai-Fa Zhai, Wan Li, Jie Zhang, Dou-Dou Xing, Yi-Xiao He, Pan-Pan Zhang, Hai-Rui Liu, Ji-En Yang, Bo Wang
Summary: Polyhedral CaMoO4 microcrystallites with excitation-induced tunable luminescent characteristics were successfully synthesized by a hydrothermal method. Different shapes and exposed facets of polyhedral morphologies were observed for the samples prepared at different temperatures. The sample obtained at 140 degrees C showed the strongest PL emission intensity due to its regular polyhedron morphology, with green and blue light emissions observed separately under different excitation wavelengths.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Nadia Anwar, Muhammad Munir Sajid, Muhammad Aamir Iqbal, Haifa Zhai, Muqarrab Ahmed, Bushra Anwar, Kareem Morsy, Rey Y. Capangpangan, Arnold C. Alguno, Jeong Ryeol Choi
Summary: This study synthesized FeVO4 using a simple hydrothermal method and demonstrated its exceptional electrochemical properties for detecting low-density ascorbic acid (AA). Characterization techniques such as X-ray diffraction, energy-dispersive X-ray spectroscopy, scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy were used to determine its phase purity, crystallinity, structure, morphology, and chemical composition properties. The electrochemical response of a FeVO4-modified glassy carbon electrode for sensing AA was evaluated using electrochemical impedance spectroscopy and cyclic voltammetry techniques. The results showed that FeVO4 exhibited excellent stability and reproducibility for the electrochemical determination of AA, suggesting its potential for relevant sensing applications.
Article
Chemistry, Multidisciplinary
Muhammad Munir Sajid, Haifa Zhai, Naveed Akhtar Shad, Muhammad Shafique, Amir Muhammad Afzal, Yasir Javed, Sadaf Bashir Khan, Nasir Amin, Zhengjun Zhang
Summary: The present study synthesized MoS2/QDs-decorated (Bi1-xFex)VO4 composite heterostructures and characterized their crystallinity and physicochemical properties. Experimental results showed that the Fe concentration affected the crystal structure, optical band gap, and photocatalytic activity of the heterostructures.
Article
Chemistry, Physical
Muhammad Munir Sajid, Sadaf Bashir Khan, Yasir Javed, Nasir Amin, Naveed Akhtar Shad, Zhengjun Zhang, Muhammad Imran Yousaf, Muhammad Sarwar, Haifa Zhai
Article
Chemistry, Multidisciplinary
Jien Yang, Jinjin Xu, Qiong Zhang, Zhilin Xue, Hairui Liu, Ruiping Qin, Haifa Zhai, Mingjian Yuan
Review
Chemistry, Physical
Haifa Zhai, Bao Yu Xia, Ho Seok Park
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
