Article
Chemistry, Physical
Muhammad Ishfaq, Muhammad Aadil, Syeda Rabia Ejaz, Warda Hassan, Nadia Masaya Panduro-Tenazoa, Mohamed E. El Sayed, Mohammad N. Murshed, Zeinhom M. El-Bahy
Summary: In this study, a copper and bismuth co-doped CeO2 nanostructure was synthesized using subcritical hydrothermal method for water remediation application. The co-doping of copper and bismuth synergistically improved the conductivity and light-harvesting capabilities of the co-doped CeO2, as confirmed through current-voltage and optical studies. The microstructural, compositional, and morphological information of the photocatalyst were analyzed using powder XRD and spectroscopic techniques. The as-prepared co-doped CeO2-based photocatalyst demonstrated efficient mineralization of the anionic dye methyl orange under solar irradiation, outperforming a CeO2 photocatalyst in terms of effectiveness and rate of dye mineralization. The co-doped CeO2 photocatalyst also exhibited excellent robustness and retained its photocatalytic activity after multiple reusability tests.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
D. Kanakaraju, M. A. A. Jasni, Y. C. Lim
Summary: This study demonstrates the superior performance of molybdenum-modified titanium dioxide in degrading methyl orange, achieving optimal conditions by varying parameters such as photocatalyst dosage, initial dye concentration, and pH. It was found that both superoxide and hydroxyl radicals play a key role in the degradation mechanism. The successful structural modification of titanium dioxide by molybdenum enhances the photocatalytic removal of dye wastewater.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Sarah Ameen Almofty, Muhammad Nawaz, Faiza Qureshi, Rayanah Al-Mutairi
Summary: β-Nb2ZnO6 nanoparticles synthesized at different calcination temperatures exhibited different crystallinity and showed varying photocatalytic degradation rates of methyl orange. Both types of nanoparticles demonstrated high cytotoxicity against cancer cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Jian-Ping Qiu, Huan-Qing Xie, Ya-Hao Wang, Lan Yu, Fang-Yuan Wang, Han-Song Chen, Zheng-Xin Fei, Chao-Qun Bian, Hui Mao, Jia-Biao Lian
Summary: In this study, a Nb2O5 photocatalyst with uniform micro-flower structure was successfully synthesized for the degradation of methyl orange (MO) under UV irradiation. The Nb2O5 micro-flowers showed excellent catalytic activity with a high degradation rate of MO, attributed to its 3D porous structure with abundant catalytic active sites.
Article
Energy & Fuels
Umer Younas, Awais Ahmad, Aftab Islam, Faisal Ali, Muhammad Pervaiz, Aimon Saleem, Muhammad Waseem, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Salman Raza Naqvi
Summary: In this study, a WO3/TiO2/V2O5 catalyst was synthesized and characterized for the degradation of O-NP, MB, and MO pollutants. The results showed that the synthesized nanocomposite exhibited excellent photocatalytic potential, with degradation rates of up to 76%, 86%, and 86% for MB, MO, and O-NP, respectively.
Article
Chemistry, Physical
Lu Chen, Wenqian Zhang, Junfeng Wang, Xiaojing Li, Yi Li, Xin Hu, Leihong Zhao, Ying Wu, Yiming He
Summary: In this work, an Ag/Bi5O7I nanocomposite was prepared and used for the piezo/photocatalytic reduction of N2 to NH3 and methyl orange degradation for the first time. The addition of Ag nanoparticles to the Bi5O7I nanorods enhanced the spatial separation of charge carriers and improved the catalytic performance. Under ultrasonic vibration, the optimal Ag/Bi5O7I catalyst exhibited high efficiency in MO degradation and piezocatalytic N2 fixation. Additionally, simultaneous ultrasonic vibration and light irradiation further improved the performance. However, the weak adhesion of Ag nanoparticles resulted in their detachment under long-term ultrasonic vibration, leading to a reduction in the catalytic performance.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Engineering, Electrical & Electronic
Bojana Simovic, Zeljko Radovanovic, Goran Brankovic, Aleksandra Dapcevic
Summary: In this study, the optimal CeO2 content in ZnO powders was determined to enhance the photocatalytic efficiency of ZnO. The hydrothermally synthesized ZnO and CeO2/ZnO nanocomposites were characterized using various techniques. It was found that CeO2 nanoparticles with a large surface area were distributed onto the ZnO surface and the ZnO exhibited a unique 3D morphology. The nanocomposite with 5 mol% CeO2 showed significantly improved photocatalytic efficiency compared to other samples. The kinetics and mechanism of photocatalytic degradation were also proposed based on the experimental results.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Materials Science, Ceramics
Ying Hong, Baolong Wang, Shanshan Hu, Shuang Lu, Qi Wu, Mengmeng Fu, Chenzhang Gu, Yinzhen Wang
Summary: Zn2SnO4(ZTO)/ZIF-8 nanocomposite photocatalysts were prepared using solution method and hydrothermal method. The addition of ZIF-8 improved the photocatalytic activity of ZTO by inhibiting the recombination of photoelectron-hole pairs. The composite exhibited slightly improved adsorption performance due to the high specific surface area of ZIF-8. With 0.4 wt%ZIF-8, the ZTO nanocomposite achieved a photocatalytic activity of 75% in the removal of 20 mg/L MB dye solution after 120 min.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
B. Harikumar, Mohammad K. Okla, Ibrahim A. Alaraidh, Asmaa Mohebaldin, Walid Soufan, Mostafa A. Abdel-Maksoud, Mohammed Aufy, Ajith M. Thomas, Lija L. Raju, S. Sudheer Khan
Summary: This study constructs a novel ternary nanocomposite for the efficient degradation of organic pollutants. The photocatalyst exhibits extraordinary degradation efficiency and excellent photostability and reusability. The research provides insights into the degradation pathway and kinetics of the dyes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Biotechnology & Applied Microbiology
Md Rashid Al-Mamun, Md Nafiul Karim, Naufida Afroj Nitun, Shahina Kader, Md Shahinoor Islam, Md Zaved Hossain Khan
Summary: The nanocomposites of TiO2 photocatalyst doped with graphene oxide (GO) and silver (Ag) nanoparticles show higher performance in the removal of organic dyes, with great potential for sustainable management of textile wastewater under solar irradiation. The photocatalytic efficiency is enhanced by the addition of oxidant H2O2, and the time-dependent degradation of dye is best fitted with the experimental data.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Materials Science, Multidisciplinary
V. Ramasubbu, P. Ram Kumar, T. Chellapandi, G. Madhumitha, E. M. Mothi, X. Sahaya Shajan
Summary: Highly porous three-dimensional TiO2@Cd-MOF nanocomposite aerogels were synthesized and sensitized to enhance the photocatalytic activity for pollutant degradation. The nanocomposite aerogels exhibited superior photocatalytic performance under visible-light irradiation.
Article
Environmental Sciences
Uddandarao Priyanka, Piet N. L. Lens
Summary: Inorganic-microbial hybrid systems integrate the light-harvesting properties of semiconductors with microbial cells to create sustainable, efficient, and versatile chemical synthesis platforms. This study demonstrates the use of light-driven photocatalytic semiconducting Aspergillus niger cells-ZnS nanoparticles for enhanced removal of the dye methyl orange.
Article
Optics
R. Stanley, J. Alphas Jebasingh, S. Manisha Vidyavathy, P. Kingston Stanley, P. Ponmani, M. E. Shekinah, J. Vasanthi
Summary: Efficient silver-assisted ZnO nanocomposite (AZ) was fabricated using the co-precipitation method, which showed reduced bandgap of ZnO and higher photocatalytic efficiency under sunlight. The incorporation of silver led to a shift in emission spectra from UV to visible region, allowing for more photon capture. Among all prepared samples, AZ-1 exhibited the highest photocatalytic degradation efficiency over methylene blue dye, offering a promising new pathway for industrial wastewater treatment.
Article
Environmental Sciences
Ying Jiang, An Liu
Summary: This study used TiO2 and cornstalk biochar to prepare biochar-TiO2 composites for treating methyl orange (MO) in water. The composites prepared using biochar generated at 700℃ and a TiO2/biochar mass ratio of 0.75/1 showed the best performance on MO decolorization and mineralization efficiency. Factors such as low pH, low initial MO concentration, and 1 g/L of composite amount added enhanced MO degradation efficiency. The biochar-TiO2 composites were easier to separate from water compared to pure TiO2, benefitting their recycling after application.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Boitumelo M. Phadi, Opeyemi A. Oyewo, Sam Ramaila, Lydia Mavuru, Damian C. Onwudiwe
Summary: A facile one-pot synthesis method was used to prepare CeVO4/BiVO4/rGO nanocomposites, followed by investigation of their photocatalytic performance for dye degradation. Loading CeVO4/BiVO4 nanoparticles onto reduced graphene oxide (rGO) significantly enhanced the photocatalytic efficiency, attributed to increased surface area and improved charge separation.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Attika Malik, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Youmna Naz, Maria Masood, Ishaq Ahmad, Bushra Uzair
Summary: An economical and facile method was used to synthesize SiO2-based hierarchical structures for improved sorption efficiency, successfully attracting petrol, diesel, and mustard oil from aqueous solution. The modified PU sponges decorated with ternary composite exhibited high sorption capacity for removal of adsorbates from oil-water mixture and could be recycled up to five cycles without losing sorption capacity, showing potential for large-scale oily water treatment.
APPLIED NANOSCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Aisha Kanwal, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Zameela Yousaf
Summary: A highly efficient ternary heterojunction of CuO/alpha-Fe2O3/gamma-Al2O3 was fabricated via a facile and cost effective chemical route. The ternary nanocomposite exhibited superior photocatalytic efficacy compared to binary and pure oxides, with the marvelous activity attributed to close contact, strong interfacial hybridization, and efficient charge transfer capacity. The electrochemical studies supported the high photo activity of the ternary nanocomposite, making it a promising candidate for efficient organic dye removal from wastewater.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Crystallography
Naheed Zafar, Bushra Uzair, Muhammad Bilal Khan Niazi, Ghufrana Samin, Asma Bano, Nazia Jamil, Waqar-Un-Nisa, Shamaila Sajjad
Summary: This study aimed to green synthesize a biocompatible nanohybrid of ciprofloxacin to improve efficacy against MDR strains. The synthesized nanohybrid showed potent antibacterial activity against mastitis causing MDR E. coli and high biocompatibility with bovine mammary gland epithelial cells.
Article
Chemistry, Inorganic & Nuclear
Tayyba Muzaffar, Rabia Yasmin Khosa, Uzma Iftikhar, Raphael M. Obodo, Shumaila Sajjad, Muhammad Usman
Summary: The synthesis of WO3 and GO nanocomposite using a hydrothermal method has been reported, showing potential applications as antimicrobial agents.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Infectious Diseases
Amna Kanwal, Bushra Uzair, Shamaila Sajjad, Ghufrana Samin, Barkat Ali Khan, Sajjad Ahmed Khan Leghari, Muhammad Bilal Khan Niazi, Sehrish Abbas
Summary: The synthesized carbon dots (CDs) coated calcium carbonate nanocarrier (CCNC) conjugated with levofloxacin showed significant antibacterial and antibiofilm potential against multidrug-resistant Escherichia coli, suggesting promising therapeutic applications.
MICROBIAL DRUG RESISTANCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Maria Mehboob, Rida Shahzadi Haider, Shamaila Sajjad, Sajjad Ahmed Khan Leghari
Summary: Single layered two-dimensional molybdenum sulphide (MoS2) was synthesized hydrothermally and incorporated with two-dimensional nitrogen doped graphene oxide (NGO) to form a composite material. The composite showed enhanced photocatalytic performance compared to MoS2, attributed to the heterojunction formation improving charge separation efficiency and charge transfer kinetics.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Ghulam Sughra Jamila, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Maria Mehboob, Cristina Flox
Summary: A MgO-based solar efficient Fe2O3/NCQDs-MgO ternary photocatalyst was synthesized through a facile approach. The synthesized material showed characteristic peaks of Fe2O3 and MgO nanomaterials. The addition of NCQDs resulted in a smaller particle size. The ternary nanocomposites exhibited a honeycomb-like structure. The UV-Vis spectroscopy confirmed that the band gap of MgO was reduced in the ternary composites, enabling enhanced photo response in the visible region. The reduced PL intensity suggested minimized charge carrier recombination and enhanced electronic transitions. The ternary photocatalyst showed high degradation efficiency and improved activity towards water splitting. The synthesized ternary catalyst exhibited good stability for environmental detoxification and electrocatalytic water splitting.
APPLIED NANOSCIENCE
(2022)
Article
Chemistry, Physical
Sunbel Noor, Rida Shahzadi Haider, Saima Noor, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Maria Mehboob, Mingce Long
Summary: An innovative ternary composite of carbon quantum dots (CQDs)/nickel oxide (NiO)/graphitic carbon nitride (g-C3N4) was fabricated, showing improved photocatalytic and photo electrochemical properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Pharmacology & Pharmacy
Naheed Zafar, Bushra Uzair, Farid Menaa, Barkat Ali Khan, Muhammad Bilal Khan Niazi, Fatima S. Alaryani, Kamlah Ali Majrashi, Shamaila Sajjad
Summary: This study successfully synthesized a new nanomaterial targeted towards multidrug resistant (MDR) bacteria, which has advantages such as improved stability and targeted therapy. The experiments demonstrated that the nanomaterial had effective antibacterial activity, both in vitro and in vivo, without causing significant harm to the vital organs of the animals.
Review
Chemistry, Multidisciplinary
Sidra Anis Farooqi, Ahmad Salam Farooqi, Shamaila Sajjad, Chenglin Yan, Ayodele Bamidele Victor
Summary: Global warming is caused in part by the release of carbon dioxide (CO2) into the atmosphere through industrial and human activities. Therefore, it is important to develop advanced methods for storing and transforming CO2 into valuable chemicals, materials, and fuels. The electrochemical reduction of CO2 using renewable electricity is a promising long-term solution for a circular economy, but it faces challenges in terms of selectivity, activity, and stability in aqueous electrolytes. In this review, we discuss principles, electrocatalysts, and production methods for compounds with one carbon (C-1) or two or more carbons (C2+), focusing on the application of bimetallic, oxide-derived, and crystal facet compounds, as well as defect engineering and structure tuning.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Iqra Farooq, Saima Noor, Shamaila Sajjad, Saman Ashraf, Saima Sadaf
Summary: Drug nanocarriers made of zinc oxide (ZnO) modified with silver oxide (AgO) and carbon quantum dots (CQDs) showed enhanced cytotoxicity for breast cancer treatment. Biogenic synthesis of ZnO and AgO nanoparticles was achieved using leaf extract of Ficus carica and CQDs were synthesized from banana juice. The nanocarriers inhibited over 80% of viable cancer cells and showed synergistic potential against resistant bacterial strains, with a 54.64% reduction in cell viability observed after treatment.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Aisha Kanwal, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Gaber A. M. Mersal, Mohamed M. Ibrahim
Summary: The establishment of a solid-state Z-scheme heterojunction photocatalytic system, with metal sulfide nanoparticles in alumina as the structure, achieved efficient and quick charge transfer leading to a 99.0% removal of methyl orange.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ghulam Sughra Jamila, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Tanja Kallio, Cristina Flox
Summary: Glucose derived carbon quantum dots modified tungstate-titanate composites exhibited excellent photo and electrocatalytic efficiencies, with high current density and low overpotential. They showed good electron transfer abilities and enhanced hydrogen evolution reaction efficiency.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Sehrish Abbas, Bushra Uzair, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Saima Noor, Muhammad Bilal Khan Niazi, Iqra Farooq, Haroon Iqbal
Summary: This study successfully synthesized MgO and CuO/MgO nanomaterials using a plant extract, showing potential antimicrobial and photocatalytic applications. The CuO/MgO composite demonstrated superior performance in antimicrobial activity and dye degradation compared to MgO.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Environmental
Zameela Yousaf, Shamaila Sajjad, Sajjad Ahmed Khan Leghari, Saima Noor, Aisha Kanwal, Sajjad Hussain Bhatti, Khaled H. Mahmoud, Zeinhom M. El-Bahy
Summary: Nitrogen-doped graphene modified WO3 nanocomposites were synthesized using an effective method and applied for degradation of highly toxic organics. The nanocomposites showed increased absorption in the visible region and demonstrated effective photocatalytic degradation of pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
