Article
Materials Science, Multidisciplinary
V. R. Chandegara, Payal Joshi, Sangita Chavda, H. M. Oza, Mayur Parmar, Davit Dhruv, P. S. Solanki, D. D. Pandya, A. D. Joshi, N. A. Shah, R. K. Trivedi
Summary: In this research, the structural, microstructural, optical and electrical properties of CuO/ZnO nanoparticle/nanorod composites in PVA matrix were investigated using a two-step sol-gel technique. The synthesized samples were characterized using X-ray diffraction, Field Emission Scanning Electron Microscopy, Energy Dispersive X-ray analysis, UV-visible spectroscopy, and an LCR meter. The results confirmed the crystalline properties of CuO and ZnO metal oxides in the PVA matrix and analyzed the optical and electrical behaviors of the composites.
Article
Engineering, Chemical
Pengfei Zhou, Yanbai Shen, Sikai Zhao, Jinzhou Bai, Cong Han, Wengang Liu, Dezhou Wei
Summary: The novel ternary Ag/TiO2/clinoptilolite (ATC) nanocomposite exhibits excellent photocatalytic performance for degrading xanthates, with enhanced adsorption capacity, visible-light absorption range, and charge separation efficiency. The possible photodegradation mechanism was proposed based on real-time spectral evolution, trapping experiment, and UV-vis DRS results.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Engineering, Environmental
Guanwen Su, Tingyu Feng, Zijia Huang, Yanan Zheng, Wenxu Zhang, Guozhao Liu, Wei Wang, Hongyuan Wei, Leping Dang
Summary: In this study, hollow ZnO nanocages were prepared by calcining ZIF-8 and CuO was synthesized in situ on the surface of nanocages, resulting in the synthesis of hollow CuO/ZnO nanocages as a novel photocatalyst. This is the first study to achieve position-controllable synthesis of CuO/ZnO heterojunction on the inner and outer surfaces of hollow nanocages. The experimental results showed that hollow CuO/ZnO nanocages exhibited superior photocatalytic performance and synergistic effect, and favored the separation of photogenerated carriers. A suitable photocatalytic degradation mechanism was proposed based on the results. These findings have important implications for the application of photocatalytic materials.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Geochemistry & Geophysics
Jelena Pavlovic, Nevenka Rajic
Summary: Many efforts have been made to produce green materials and technology to combat the negative effects of population growth and industrial development on the environment and human health. Zeolites, with their unique structural features, have gained attention for their use as ion exchangers, adsorbents, and catalysts. They have been applied in various industries, including petrochemicals, environmental pollution degradation, and the synthesis of fine chemicals. Recent advances in the catalytic application of clinoptilolite (CLI), the most abundant natural zeolite, have opened up possibilities for biomass conversion and industrial bio-based chemical production.
Article
Materials Science, Multidisciplinary
Xueqi Wang, Mengting Deng, Ziyi Zhao, Qi Zhang, Yongqian Wang
Summary: The introduction of super-hydrophobicity into the field of photocatalysis utilizing CuO nanowires and ZnO nanostructures has shown promising results in enhancing photocatalytic properties and super-hydrophobicity. Through optimization of experimental conditions, the composite nanostructures exhibit desired properties for photocatalysis and surface modification. The stable super-hydrophobic property after photocatalytic degradation has potential for improving self-cleaning and expanding the application field of photocatalysts.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Multidisciplinary Sciences
Sauvik Raha, Dipyaman Mohanta, Md. Ahmaruzzaman
Summary: A nanohybrid of CuO/Mn3O4/ZnO was successfully synthesized through a simple hydrothermal based procedure and characterized using various techniques. Optical property evaluation indicated strong interfacial interaction in the nanohybrid, leading to suppressed electron-hole recombination. The hybrid photocatalyst exhibited efficient degradation of rabeprazole under visible light irradiation, with potential applications in environmental remediation.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Ceramics
Ton That Buu, Vo Hoai Son, Nguyen Thanh Hoai Nam, Nguyen Duy Hai, Hoai-Thanh Vuong, Le Tran Ky Quang, Nguyen Minh Dat, Tong Hoang Lin, Mai Thanh Phong, Nguyen Huu Hieu
Summary: A zinc oxide-doped titanium dioxide/graphene aerogel (ZnO-TiO2/GA) nanocomposite was synthesized for efficient removal of dyes and toxic metals in aqueous media. The material showed excellent photocatalytic-adsorption capacity, with degradation efficiencies of 99.7%, 97.3%, and 94.9% for methylene blue, rhodamine B, and methyl orange, respectively, under optimal conditions. The nanocomposite also exhibited high reusability and a maximum absorption capacity of 380.6 mg g-1 for Cd2+ ions and 230.1 mg g-1 for Co2+ ions, making it suitable for water treatment and textile dyeing waste.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Nami, Amirhossein Rakhsha, Saeed Sheibani, Hossein Abdizadeh
Summary: ZnO nanorods (NRs) and CuO nanourchins (NUs) were combined to achieve the highest efficiency in methylene blue (MB) degradation. The nanocomposites showed improved interconnectivity and increased lifetime of photo-excited charge carriers with the addition of CuO NUs. The highest efficiency in MB degradation was achieved by the ZnO/(10 mol%)CuO nanocomposite, with a band gap energy of 2.9 eV and pore volume of 0.0180 cm3/g.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Khalida Mubeen, Afshan Irshad, Akif Safeen, Uzma Aziz, Kashif Safeen, Tayyaba Ghani, Kamran Khan, Zulfqar Ali, Ihsan Ul Haq, Attaullah Shah
Summary: Heterogeneous photocatalysis is a promising method for removing organic, inorganic, and microbiological contaminants from wastewater to prevent damage to ecosystems. This study focuses on tuning the band structure of ZnO/CuO nanocomposites to enhance their photocatalytic activity. Experimental results show that increasing the CuO content in the nanocomposites leads to a decrease in optical bandgap. The wt. 10% CuO/ZnO nanocomposite exhibits superior photocatalytic activity compared to pure ZnO nanoparticles, with a 66.6% increase in degradation rate for methylene blue under visible irradiation.
JOURNAL OF SAUDI CHEMICAL SOCIETY
(2023)
Article
Green & Sustainable Science & Technology
Soumya Ranjan Mishra, Md. Ahmaruzzaman
Summary: This article discusses the various synthesis techniques and potential applications of copper oxide (CuO) nanoparticles and nanocomposites in the field of environment and energy. It explores the effect of reaction conditions on the fabricated nanoparticles and the advantages and disadvantages of different synthesis techniques. Additionally, it focuses on the characterization and physicochemical properties of CuO nanomaterials, as well as their potential applications in environmental remediation and energy operations. The review concludes by providing future perspectives on CuO research in synthesis and its various applications.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Monireh Jafari, Hosein Eshghi
Summary: We fabricated ZnO/CuO heterostructure photodiodes on FTO substrate using the RF-sputtering method and studied the effect of ZnO thickness on their photoresponse. Various characterizations were performed, and it was found that both samples showed potential for photovoltaic properties, with the sample with a thinner ZnO layer exhibiting the highest photoresponse ratio and fast response time.
Article
Chemistry, Multidisciplinary
Bahman Abdollahi, Ahmad Najafidoust, Ebrahim Abbasi Asl, Mika Sillanpaa
Summary: Novel CuO-ZnO/ZiF-8 metalorganic frameworks (MOFs) photocatalyst with different mass percentages of ZiF-8 were prepared for water purification applications. The addition of ZiF-8 increased the specific surface area of the photocatalyst, enhancing pollutant adsorption capacity.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Abdallah M. M. Elgorban, D. Sivaganesh, Muthuraj Arunpandian, Ali H. H. Bahkali, Rajalakshmanan Eswaramoorthy, Nouf S. S. Zaghloul, Meenakshi Verma, Asad Syed
Summary: In this study, ZnO@CuO nanocomposites were synthesized and successfully achieved the visible light degradation of the organic dye methyl orange and the drug ciprofloxacin. The structural characterization of the materials was analyzed by powder X-ray diffraction and the Rietveld refinement technique, and the surface morphology was measured by scanning electron microscope characterization. The luminescence performance of the materials was studied by photoluminescence characterization. The results showed that the ZnO@CuO composite is an effective candidate for degrading ciprofloxacin and methyl orange under stimulated sunlight, with an efficiency of above 95%. Optimization parameters were analyzed to improve the degradation process. This affordable photocatalyst provides a new starting point for further research. Additionally, electron density distribution analysis of the synthesized materials was studied.
JOURNAL OF ELECTROCERAMICS
(2023)
Article
Chemistry, Physical
Xiuxiu Dong, Jun Deng, Meicai Ge, Shun Lu, Qiuxiang Zhu
Summary: A novel coaxial CdS@ZnO nanowire array catalyst was synthesized and the optimal photocatalytic composite was obtained by adjusting the ratio of CdS and ZnO. The catalyst exhibited strong photocatalytic solid activity, achieving high adsorption and photodegradation rates for methylene blue under simulated sunlight illumination.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Mahmoud A. Hamza, Shaimaa A. Abd El-Rahman, Zeinab M. Abou-Gamra
Summary: In this study, a novel PbCrO4/ZnO binary nanocomposite was synthesized using a simple one-pot method, where commercial Zinc oxide nanoparticles and commercial PbCrO4 nanorods were solid-state mixed. The resulting nanocomposite showed enhanced optical properties and photocatalytic performance of ZnO.
Article
Engineering, Multidisciplinary
Shirin Ghattavi, Alireza Nezamzadeh-Ejhieh
COMPOSITES PART B-ENGINEERING
(2020)
Article
Chemistry, Physical
Narges Omrani, Alireza Nezamzadeh-Ejhieh
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
Marzieh Nasiri-Ardali, Alireza Nezamzadeh-Ejhieh
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Chemistry, Inorganic & Nuclear
Meymanat Mehrali-Afjani, Alireza Nezamzadeh-Ejhieh
SOLID STATE SCIENCES
(2020)
Article
Chemistry, Inorganic & Nuclear
Maryam al Sadat Shafiof, Alireza Nezamzadeh-Ejhieh
SOLID STATE SCIENCES
(2020)
Article
Engineering, Environmental
Narges Omrani, Alireza Nezamzadeh-Ejhieh
JOURNAL OF WATER PROCESS ENGINEERING
(2020)
Article
Environmental Sciences
Hadis Derikvandi, Maryam Vosough, Alireza Nezamzadeh-Ejhieh
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Chemistry, Physical
Samaneh Senobari, Alireza Nezamzadeh-Ejhieh
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2020)
Article
Chemistry, Physical
Abbas Noruozi, Alireza Nezamzadeh-Ejhieh
CHEMICAL PHYSICS LETTERS
(2020)
Article
Chemistry, Physical
Narges Omrani, Alireza Nezamzadeh-Ejhieh
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Review
Biochemistry & Molecular Biology
Wenfeng Zhang, Gaomin Ye, Donghui Liao, Xuelin Chen, Chengyu Lu, Alireza Nezamzadeh-Ejhieh, M. Shahnawaz Khan, Jianqiang Liu, Ying Pan, Zhong Dai
Summary: This paper reviews the mechanism and antibacterial effect of three typical MOFs in silver-based coordination polymers and discusses the existing shortcomings and future perspectives. The study on Ag-MOFs can provide a better basis for its clinical application and open up a novel strategy for the preparation of more advanced Ag-contained materials with antibacterial characteristics.
Article
Engineering, Chemical
Seyyedeh Atefeh Mirsalari, Alireza Nezamzadeh-Ejhieh
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Engineering, Chemical
Seyyedeh Atefeh Mirsalari, Alireza Nezamzadeh-Ejhieh
DESALINATION AND WATER TREATMENT
(2020)
Article
Engineering, Chemical
Farideh Yousefi, Alireza Nezamzadeh-Ejhieh
DESALINATION AND WATER TREATMENT
(2020)
Article
Chemistry, Inorganic & Nuclear
Nafiseh Pourshirband, Alireza Nezamzadeh-Ejhieh
SOLID STATE SCIENCES
(2020)
