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
Chemistry, Physical
Huanhuan Xu, Peizhi Fan, Lan Xu
Summary: In this study, CuO/ZnO/carbon quantum dots (CQDs)@PAN nanocomposites with ternary heterostructures (CZC@PAN) were prepared and their application in degrading methylene blue (MB) was investigated. The synergistic effects of components in ternary heterostructures on the morphology, structure, and photocatalytic performance of CZC@PAN were analyzed, and their photocatalytic mechanism was discussed. The results showed that CZC@PAN exhibited excellent photocatalytic degradation performance, with a degradation rate of 99.56% for MB under natural sunlight for 4 hours.
Article
Engineering, Environmental
Mekdes Gerawork
Summary: Heterogeneous photocatalysis using nanocomposites, particularly those impregnated with eggshells, has shown promising results in degrading organic dyes in industrial wastewater, indicating great potential for environmental applications.
WATER SCIENCE AND TECHNOLOGY
(2021)
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
Chemistry, Analytical
Aabid Hussain Bhat, Hamida-Tun-Nisa Chisti
Summary: The uncontrolled release of hazardous dyes from textile industries has caused severe aquatic environment contamination, highlighting the need for advanced scientific methods to eradicate toxic dyes. A novel ZnO/CuO/SnO2 nanocomposite with high photocatalytic activity was synthesized to effectively degrade harmful dyes under visible light irradiation and demonstrated excellent photostability. Radical trapping experiments revealed superoxide and holes as the main reacting species in the photocatalytic mechanism, showcasing the potential of the composite catalyst for sustainable water purification.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
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
Chemistry, Physical
Wei Lu, Tongtong Gu, Xuedong Jing, Yongan Zhu, Linqun Yu, Shichao Hou, Tingting Pang, Na Lu, Zhenyi Zhang
Summary: By constructing p-type CuO/n-type ZnO heterojunction nanofibers, this study aimed to expand the light absorption range and improve photocatalytic activity. The introduction of Ag nanoparticles further enhanced the photocatalytic performance. The results demonstrated high degradation and disinfection efficiency under simulated sunlight irradiation. This study opens up a new pathway for the rational design of photocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Zia Ur Rahman, Usman Shah, Amir Alam, Zarbad Shah, Kausar Shaheen, Sher Bahadar Khan, Shahid Ali Khan
Summary: Due to excessive usage and continuous release into the aquatic environment, organic pollutants have become a threat to the environment. Advanced oxidation processes (AOPs), including photocatalysis, have gained attention for the removal of active pharmaceutical ingredients (APIs) and other organic pollutants in water. A CuO-NiO nano-composite photocatalyst with a p-p isotype heterojunction was prepared using a low-cost and facile co-precipitation method. The nanocomposite photocatalyst showed effective catalytic activity in the degradation of cefixime, with a degradation rate of 90% and a rate constant (k) of 7.4 x 10-3 min-1. Radical trapping study confirmed the involvement of hydroxyl and superoxide radicals in the degradation reactions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Biotechnology & Applied Microbiology
Rania Elshypany, Hanaa Selim, K. Zakaria, Ahmed H. Moustafa, Sadeek A. Sadeek, S. Sharaa, Patrice Raynaud, Amr A. Nada
Summary: Fe3O4/ZnO nanocomposites were synthesized by the solid-state method using different ratios of zinc oxide and iron oxide. The nanocomposites exhibited significant Raman shifts and quenching in PL intensity due to the strong incorporation of ZnO with Fe3O4. The photocatalytic activities of the nanocomposites showed enhanced degradation efficiency of methylene blue under visible light, with a stable catalytic performance over multiple cycles.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Multidisciplinary
B. Arjun Kumar, Thangavel Elangovan, Dharmalingam Karthigaimuthu, D. Aravinth, Gopal Ramalingam, Fen Ran, Sambasivam Sangaraju
Summary: In this study, a CdSe quantum dots-decorated ternary metal oxide nanocomposite of ZnO/TiO2/CuO was synthesized via a simple hydrothermal method. The nanocomposite exhibited promising performance as photoanodes in DSSCs and as photocatalysts for industrial dye solution. The CdSe@CuO/TiO2/ZnO sample showed a photon conversion efficiency of 3.68% in DSSC and a photocatalytic degradation efficiency of 96%.
Article
Materials Science, Multidisciplinary
Wenli Zhu, Qiaoling Yang, Juan Du, Pinpin Yin, Jun Yi, Yanmei Liu, Xuemei Wu, Zhongyi Zhang
Summary: A quaternary CuO-CuS-ZnO-ZnS nanocomposite with excellent adsorption performance was successfully synthesized using a facile microwave irradiation method. The nanocomposite showed sensitivity to both ultraviolet and visible light, and had a high separation rate and low recombination rate of photo-generated charge carriers, leading to excellent photocatalytic activity in sunlight. Under simulated solar light, the removal efficiency of rhodamine B pollutant over the CuO-CuS-ZnO-ZnS nanocomposite was significantly higher than that of pristine CuO and ZnS nanoparticles. The outstanding photocatalytic performance was attributed to the Z-scheme charge transfer path.
CURRENT APPLIED PHYSICS
(2022)
Article
Engineering, Environmental
Jusni Manidar Lumban Gaol, Toyoko Imae
Summary: ZnO of different sizes were synthesized by irradiating femtosecond pulse laser, and physically mixed with CuO to form CuO/ZnO nanocomposites embedded in chitosan film. The CuO/ZnO/CS nanocomposite showed excellent catalytic activity in the photocatalytic conversion of CO2 to methanol. The film-type system consisting of chitosan holds promise as a biocompatible reactor with facile production procedure and efficient catalytic treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Tadesse Bassie Gelaw, Balladka Kunhanna Sarojini, Arun Krishna Kodoth
Summary: Advanced photocatalytic degradation based on polymer/metal oxide hybrid composites has been achieved in this study. A chitosan/hydroxyethyl cellulose (CS/HEC) gel immobilized polyaniline (PANI)/CuO/ZnO composite was prepared and characterized. The degradation study using Congo red as the target pollutant showed good catalytic efficiency and stability of the hybrid nanocomposite. The results indicate that the hybrid nanocomposite is a promising photocatalyst for removing anionic dyes.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Nadiyah Alahmadi, Mahmoud A. Hussein
Summary: The study aims to fabricate hybrid nanocomposite membranes containing cellulose acetate reinforced by pure zinc oxide or mixed metal oxides for biological interest. The chemical structure, thermal stability, and biological activity of the fabricated materials were investigated.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Physics, Multidisciplinary
Zewdu Weldemichael Zena, Lemma Teshome Tufa, Dinsefa Mensur Andoshe, Abebe Belay Gemta, Francis Birhanu Dejene
Summary: A Cu-SnO2/ZnO nanocomposite with high photocatalytic efficiency and defect density was successfully prepared using a sol-gel method.
Article
Materials Science, Multidisciplinary
Kamaladdin Abedi, Behzad Shahmoradi, Ebrahim Mohammadi, Kitirote Wantala, Afshin Maleki, Yahya Zandsalimi, Sonya Salimi, Shadi Kohzadi
Summary: In this study, Mo-doped TiO2 nanoparticles were synthesized and coated on GAC surface to fabricate Mo:TiO2/GAC composite. The composite showed high photodegradation efficiency for VOCs under both UV and visible light irradiations, with optimized operational parameters.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Environmental Sciences
Yadav Sneha, Shivamurthy Ravindra Yashas, Tenzin Thinley, Samuel Prabagar Jijoe, Harikaranahalli Puttaiah Shivaraju
Summary: This study investigates the visible light photocatalysis of lomefloxacin using magnesium titanate. The nanomaterial exhibited high efficiency in degrading lomefloxacin under specific conditions, and its morphology, functional, and optical characteristics were analyzed through computational analysis. The findings suggest that using a photocatalytic system for treating antibiotics in aqueous environments is feasible.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Jijoe Samuel Prabagar, Shivamurthy Ravindra Yashas, Bannimath Gurupadayya, Kitirote Wantala, Das Bhusan Diganta, Harikaranahalli Puttaiah Shivaraju
Summary: In this study, lanthanum copper oxide was synthesized and characterized for doxycycline degradation. The catalyst exhibited enhanced photocatalytic degradation under visible light, showing its potential for environmental applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Mukkati Praveen Ujwal, Shivamurthy Ravindra Yashas, Harikaranahalli Puttaiah Shivaraju, Ningappa Kumara Swamy
Summary: This study presents the synthesis of GdFeO3/PANI composite and its applications in electrochemical detection and photocatalytic decomposition of AC. The composite exhibits excellent electrochemical performance and photocatalytic efficiency, making it a reliable sensor for the detection and quantification of AC in environmental samples.
SURFACES AND INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Kamaladdin Abedi, Behzad Shahmoradi, Kitirote Wantala, Totsaporn Suwannaruang, Nader Amini, Afshin Maleki, S. M. Lee, Harikaranahalli Puttaiah Shivaraju
Summary: This research aims to utilize Mo:TiO2 nanoparticles for the photocatalytic degradation of humic acid in water under visible light spectrum. By optimizing operational parameters, the highest degradation efficiency was achieved. The experiment results indicate that 1% Mo:TiO2 nanoparticles exhibited the best degradation performance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Shivamurthy Ravindra Yashas, Harikaranahalli Puttaiah Shivaraju, Shadakshari Sandeep, Ningappa Kumara Swamy, Bannimath Gurupadayya
Summary: This study reveals the photocatalytic ability of yttrium molybdate coupled polypyrrole nanocomposite towards the removal of nitrofuran-based antibiotic nitrofurantoin in water, showing potential for application. The composite was successfully prepared by templatedriven growth of polypyrrole nanorods and ultrasonication. Various characterization techniques were employed to investigate the composite. The results showed that the composite achieved a degradation rate of approximately 93% for nitrofurantoin under LED irradiation.
SURFACES AND INTERFACES
(2022)
Article
Environmental Sciences
Totsaporn Suwannaruang, Acapol Pratyanuwat, Putichot Sinthujariwat, Kitirote Wantala, Prae Chirawatkul, Narong Junlek, Supinya Nijpanich, Behzad Shahmoradi, Harikaranahalli Puttaiah Shivaraju
Summary: Visible-light active La-Fe-SrTiO3 photocatalysts were synthesized with varying NaOH concentrations through a dynamic hydrothermal process. The physicochemical characteristics of the materials were altered by changing the NaOH concentrations, resulting in changes in particle size and specific surface area. However, the crystal structure of the prepared samples remained unaffected. The photocatalytic degradation of ciprofloxacin antibiotic demonstrated that the La0.01Sr0.99Fe0.01Ti0.99O3 sample prepared at 5 M NaOH showed the highest performance, outperforming other samples prepared through different methods.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Jijoe Samuel Prabagar, Yadav Sneha, Thinley Tenzin, Behzad Shahmoradi, Sami Rtimi, Kitirote Wantala, David Jenkins, Harikaranahalli Puttaiah Shivaraju
Summary: The development of solar-driven transfer of atmospheric nitrogen into ammonia using NiTi-LDH as a photocatalyst opens up new possibilities for eco-friendly ammonia production. NiTi-LDH demonstrates excellent photocatalytic activity and visible-light catalytic activities, making it a promising catalyst for converting atmospheric nitrogen into ammonia under sunlight.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Jijoe Samuel Prabagar, Divya Vinod, Yadav Sneha, Kotermane Mallikarjunappa Anilkumar, Sami Rtimi, Kitirote Wantala, Harikaranahalli Puttaiah Shivaraju
Summary: This study successfully achieved ammonia production using a visible light catalyst gC(3)N(4)/MgZnAl-MMO under LED light source, with a production efficiency of up to 47.56μmol/L NH3. The results demonstrate that LED-simulated solar light-aided catalysis can serve as an alternative to the Haber-Bosch process for sustainable ammonia production.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
H. S. Anusha, S. Yadav, T. Tenzin, J. S. Prabagar, K. M. Anilkumar, W. Kitirote, H. P. Shivaraju
Summary: By synthesizing visible-light-responsive CeMnO3 perovskite nanomaterial, the degradation of tetracycline hydrochloride antibiotic and methylene blue dye residues in water was successfully addressed. The catalyst exhibited excellent photocatalytic activity under visible light sources and showed high efficiency in degrading pollutants. The study verified the cyclic capability and chemical stability of the catalyst.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shadi Kohzadi, Afshin Maleki, Mirco Bundschuh, Zakaria Vahabzadeh, Seyed Ali Johari, Reza Rezaee, Behzad Shahmoradi, Nader Marzban, Nader Amini
Summary: Undoped and Mo-doped ZnO photocatalysts were synthesized and characterized. Mo doping increased the specific surface area and thermal stability of the catalysts. The photocatalytic degradation of Rhodamine B showed increased activity with Mo doping under UV and sunlight irradiation. The nanophotocatalysts also exhibited lower toxicity and promising potential for wastewater treatment.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Tenzin Thinley, Jijoe Samuel Prabagar, Sneha Yadav, Hosakote Shankara Anusha, Kotermane Mallikarjunappa Anilkumar, Wantala Kitirote, Behzad Shahmoradi, Harikaranahalli Puttaiah Shivaraju
Summary: In this study, a lanthanum nickelate reduced graphene oxide (LaNiO3-rGO) interfaced composite material was synthesized and characterized. The material showed significant potential in adsorbing trace organic pollutants and exhibited high photocatalytic activities towards antibacterial potential and demineralization of complex organic pollutants. The composite material also demonstrated antimicrobial activity against Escherichia coli and Staphylococcus aureus microorganisms.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Engineering, Environmental
Yadav Sneha, Jijoe Samuel Prabagar, Thinley Tenzin, Behzad Shahmoradi, Kitirote Wantala, Sami Rtimi, Afshin Maleki, Diganta B. Das, Harikaranahalli Puttaiah Shivaraju
Summary: This study synthesized AgBiS2 nanorod-shaped material with visible-light absorption and used it for photocatalytic degradation of amoxicillin. The potential pathways and generated intermediates during the degradation process were investigated, and the material exhibited antibacterial and antibiofilm activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Y. Sneha, V. Divya, J. S. Prabagar, T. Tenzin, A. Maleki, B. Shahmoradi, K. Wantala, D. Jenkins, G. Mckay, H. P. Shivaraju
Summary: In this study, a bimetallic-organic framework was successfully synthesized and characterized. The material showed excellent performance in photocatalytic degradation, photoreduction, and antibacterial activity.
MATERIALS TODAY SUSTAINABILITY
(2023)