Article
Materials Science, Multidisciplinary
Duygu Akyuz
Summary: Metal oxides are commonly used catalysts for removing dyes and toxins. The synthesized catalyst showed excellent degradation rate and efficiency, as well as high photocurrent density, stability, and recyclability under UV light irradiation.
Article
Materials Science, Multidisciplinary
Jiaxi Zhang, Kaiyi Luo, Kang Zhao, Wenyu Hu, Huan Yuan, Yutong Liu, Jing Li, Qiuping Zhang, Fei Yu, Ming Xu
Summary: Fe-doped Ag-ZnO nanoparticles synthesized in this study show enhanced photocatalytic performance for methylene blue degradation by modulating Fe, Ag concentration. The introduction of Fe and Ag enhances the spectral absorption and charge carrier separation properties of ZnO, leading to improved degradation efficiency for methylene blue under UV and visible light. The results suggest a strategy for synthesizing high performance and low-cost ZnO-based photocatalysts by trace transition metal doping.
Article
Engineering, Environmental
Sonu (S. Kuamr) Kumar, R. D. Kaushik, L. P. Purohit
Summary: A series of nanostructured ZnO-CdO incorporated with reduced graphene oxide (ZCG nanocomposites) were successfully synthesized for the photocatalytic degradation of organic contaminants, achieving high degradation and mineralization rates.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Abeer Saad Al-Shehri, Zoya Zaheer, Amell Musaid Alsudairi, Samia A. Kosa
Summary: The study found that AgNPs as an activator can effectively promote the decolorization of E133 by K2S2O8, while the combination of NaBH4 and AgNPs has a poorer effect. The decolorization rate increases with the concentrations of activators and reaction temperature. The decolorization degree of E133 shows a linear relationship with the concentrations of K2S2O8 and NaBH4.
Article
Chemistry, Multidisciplinary
Ruijuan Chen, Zahra Jalili, Reza Tayebee
Summary: A novel heterogeneous photocatalyst W-ZnO@NH2-CBB was successfully utilized in the synthesis of a range of benzimidazoles via condensation reactions under the illumination of an HP mercury lamp in the absence of oxidizing species. The photocatalyst demonstrated enhanced catalytic activity through improved surface characteristics and was stable and reusable for multiple runs. The experiment also revealed the significant cytotoxicity of W-ZnO nanoparticles towards MCF7 breast cancer cells, showcasing potential for biomedical applications.
Article
Nanoscience & Nanotechnology
Afzal Shah, Naimat Ullah, Shamsa Munir, Faiza Aslam
Summary: The research aims to contribute to the sustainable development goal of water cleanliness by monitoring and removing toxic effluents from wastewater. An electrochemical sensing platform made of Fe-doped ZnO nanoparticles and multiwalled carbon nanotubes was developed for the detection of brilliant green, achieving a limit of detection of 0.40 nM. Photocatalytic degradation of the dye with nanoparticles was also studied, showing a degradation efficiency of 99% in 30 minutes.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Prashant Kumar Mishra, Aditya Dash, E. G. Rini, Rachit Dobhal, Amretashis Sengupta, Somaditya Sen
Summary: This study investigates sol-gel prepared Fe/Ga co-doped ZnO nanoparticles with varying proportions of Fe/Ga. Previous research has focused on individual Fe or Ga modified ZnO, neglecting the link between structural properties and electronic properties. This study aims to understand the competition between Fe and Ga by co-doping them in the ZnO lattice. The structural, defects, and electronic behavior of the modified and pristine ZnO are characterized using various techniques, and changes in the conductivity and defects are correlated. Theoretical analysis shows that Fe has a weaker electron cloud compared to Zn, while Ga has a stronger one, resulting in resistance and assistance to the conduction process in Fe-doped and Ga-doped samples.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
S. Jayasankari, A. Pramothkumar, P. Mani
Summary: The synthesis of ZnO NPs, ZnO/CdO NCs, and ZnO/SnO2 NCs using co-precipitation technique was successfully achieved. The characterization results confirmed the absence of impurities in the prepared materials and demonstrated the efficient photocatalytic degradation performance of ZnO/CdO NCs.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Nehal A. Erfan, Mohamed S. Mahmoud, Hak Yong Kim, Nasser A. M. Barakat
Summary: This manuscript explores the challenge of fast electron-hole recombination in titanium dioxide photocatalysis and its critical role in water photo splitting. Three approaches (Schottky barriers, Z-scheme systems, and type II heterojunctions) and three dopants (silver, cadmium oxide, and zinc oxide) were investigated for their potential to improve TiO2's photocatalytic performance. The results show that incorporation of Ag, CdO, and ZnO effectively counters fast electron-hole recombination, with Ag contributing significantly at higher temperatures. Binary doping systems, particularly those combining CdO and ZnO, exhibit exceptional photocatalytic activity at lower temperatures. However, the ternary doping configuration involving Ag, CdO, and ZnO proves to be the most promising, surpassing many functional materials.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hongjian Zhu, Rui Wang
Summary: In this study, porous Mn-Fe composites with hollow nanocubes were used as catalysts for passive NOx adsorption. The effects of various factors on the adsorption capacity were investigated, and the developed Mn1Fe2-450 catalyst showed excellent NOx uptake at 200℃. The presence of Mn3+ and Fe2+ species and gaseous O-2 contributed to the NOx adsorption process. This work provides inspiration for the design of new adsorbent materials.
Article
Engineering, Electrical & Electronic
Yonrapach Areerob, Won-Chun Oh, Kongsak Pattarith
Summary: The photocatalysis of ZnO/Fe synthesized by the microwave method was investigated for the removal of methylene blue dye. The results showed that the activity of the photocatalyst was enhanced by loading Fe, which reduced the band gap energy of ZnO and improved electron transfer. The ZnO/Fe exhibited excellent decolorization efficiency under UV irradiation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Yin-Long Xu, Rui-Xue Mo, Cai-Yu Qi, Zeng Ren, Xiu-Zhi Jia, Zi-Gui Kan, Cao-Long Li, Fei Wang
Summary: Dual-property carbon dots (DCDs) with both excitation wavelength-dependent and -independent emissions were successfully synthesized in this study. DCDs exhibited excellent fluorescence properties and bioimaging capabilities, showing good Fe3+ detection and cellular bioimaging characteristics while avoiding damage to the body. Owing to their dual photoluminescence properties, DCDs demonstrated multi-functional applications in Fe3+ detection and A549 cell bioimaging, which could be beneficial for developing novel CDs for various fields.
Article
Environmental Sciences
Anirban Roy, Sampa Chakrabarti, Saikat Maitra
Summary: This study attempted simultaneous solar photocatalytic decolorization of Methlene Blue dye and degradation of a polymer nanocomposite film in water. The film immobilized iron-doped zinc oxide nanoparticles in a polyvinyl chloride matrix, reducing the cost of nanoparticle separation from treated water.
JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT
(2022)
Article
Chemistry, Analytical
Getu Kassegn Weldegebrieal, Hirpo Hinsene Dube, Assefu Kassegn Sibhatu
Summary: CdO/ZnO nanocomposites were synthesized and studied for their photocatalytic activity and ability to degrade methylene blue dye. Response surface methodology was used to determine optimal catalyst dose, dye concentration, and reaction mixture pH, and the predicted values were confirmed by experimental results. The CdO/ZnO nanocomposite catalyst showed high degradation efficiency over 4 consecutive cycles, indicating its potential for practical wastewater treatment of toxic organic pollutants.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Optics
K. Mariselvam, Juncheng Liu
Summary: In this study, Tm3+ ions doped barium lithium calcium zinc fluoroborate (BLCZFB) glasses with high photoluminescence and shielding properties were prepared using melt quenching technique. The glasses exhibited intense blue and near-infrared emissions, making them suitable for solid state visible lasers and optoelectronic devices. Additionally, it was found that the 2TmBLCZFB glass showed the best attenuation characteristics and potential for shielding.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Mohammad Muzibur Rahman, Md Mahmud Alam, Abdullah Mohamed Asiri, Sujan Chowdhury, Raja Saad Alruwais
Summary: In this study, the authors developed a method for measuring citric acid in fruit juices using a GCE modified with ZnO/CuO nanocomposites. DPV and CV electrochemical techniques were utilized to analyze the citric acid. The prepared ZnO/CuO nanocomposites were characterized in detail, and the sensor parameters were calculated. The results showed that the proposed sensor had good reproducibility, long-time stability, and response time, making it a promising tool for the analysis of fruit samples.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Md Motiur Rahaman Mazumder, Rezoanul Islam, M. Azizur R. Khan, K. M. Anis-Ul-Haque, Mohammed M. Rahman
Summary: The temperature dependency of electrochemical analysis of AcFc and [Fe(acac)(3)] in NARFBs was investigated. The results showed that the battery exhibited good electrochemical performance at room temperature and was not affected by temperature variation.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Vandna Rani, Monika Malhotra, Shilpa Patial, Sonali Sharma, Pardeep Singh, Aftab Aslam Parwaz Khan, Sourbh Thakur, Pankaj Raizada, Tansir Ahamad, Abdullah M. Asiri
Summary: Molybdenum trioxide (MoO3) photocatalyst has gained considerable attention in the field of photocatalysis due to its high stability, non-toxic nature, and wide specific surface area. However, its weak visible-light absorption capability hinders further progress, primarily due to the slow charge transfer mechanism. The use of Z-scheme heterostructures has significantly improved the photocatalytic performance of MoO3 by enhancing the charge transfer pathway and visible-light utilization. This review provides a comprehensive understanding of the Z-scheme mechanism and discusses various Z-scheme-based MoO3 composites, highlighting their potential applications and future research directions.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Polymer Science
Guravtar Singh Mann, Naved Azum, Anish Khan, Malik Abdul Rub, Md Imtaiyaz Hassan, Kisa Fatima, Abdullah M. Asiri
Summary: Global climate change has already caused various environmental effects and led to a shift in focus towards sustainable materials. Green composites, which combine renewable fibers with polymers, offer a wide range of applications and superior features compared to conventional materials.
Article
Chemistry, Analytical
Sulaiman Y. Alfaifi, Waheed Abiodun Adeosun, Abdullah M. Asiri, Mohammed M. Rahman
Summary: This study proposed the use of doped Co3O4-ZnO nanorod materials for the detection of aspartic acid using differential pulse voltammetry. The synthesized composite exhibited excellent properties for the detection of aspartic acid, including low limit of detection, high sensitivity, and wide linear range. The developed sensor based on Co3O4-ZnO nanorod material showed repeatable and stable current response for aspartic acid, with no interference from other electroactive compounds.
Article
Materials Science, Textiles
Aftab Aslam Parwaz Khan, Anish Khan, M. M. Alam, Mohammad Oves, Pankaj Raizada, Pardeep Singh, Maha Alotaibi, Mohammad Omaish Ansari, Abdullah M. Asiri, Mohammed M. Rahman
Summary: To prepare fiber-type nanohybrid composites for electrochemical and antimicrobial applications, polypyrrole was combined with carboxymethylcellulose and multiwalled carbon nanotubes (PPy/CMC/MWCNTS). The structure and morphology of the synthesized nanohybrid composite material were confirmed using analytical methods. The electrochemical sensor for Sb3+ cations showed linear responses between 0.1 nM and 0.01 mM, with a sensitivity of 22.4304 mu A mu M(-1)cm(-2) and a lower limit of detection of 96.82 +/- 4.84 pM. The obtained polypyrrole/carboxymethylcellulose/MWCNT composite exhibited antibacterial activity against Gram-positive and Gram-negative bacteria. The proposed Sb3+ sensor showed good reproducibility, response time, stability, and promising results in the analysis of real samples.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Materials Science, Textiles
Edi Syafri, Jamaluddin Jamaluddin, Nasmi Herlina Sari, Melbi Mahardika, Lisman Suryanegara, Rafles Sinaga, Ferriawan Yudhanto, Rahadian Zainul, Agus Nugroho, Anish Khan, Mohammad A. Wazzan
Summary: This study aims to assess the effect of ultrafine grinding and ultrasonication treatment on the bio-composite characteristics of PVA/AG-CMF film. The results showed that the treatment increased the tensile strength by 43% and improved the thermal stability of the film. Statistical analysis confirmed the significant influence of the treatment on the studied parameters.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Karuppiah Nagaraj, Subramaniam Kamalesu, Anjalikumari H. Kosamiya, Raja Kaliyaperumal, Chandrabose Uthra, Esraa M. Bakhsh, Sher Bahadar Khan, Suriyan Radha, Ammasai Karthikeyan, Chelladurai Karuppiah
Summary: In this study, the binding of DNA with double alkyl chain metallosurfactants in ionic liquid media was investigated using various spectral techniques. The size and shape of the ligand, as well as the hydrophobicity of the complexes, were found to significantly affect the binding affinity of the complexes to DNA. The presence of an ionic liquid additive enhanced the binding strength of the surfactant-cobalt(III) complex to DNA, with the double alkyl chain complex exhibiting stronger binding due to its increased hydrophobicity. The long aliphatic chain amine ligand in the metallosurfactant-oxime complex played a definite role in the binding through its hydrophobicity. The results also showed that the extent of DNA binding was greater for the double alkyl chain complex.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Haneen M. Alraddadi, Taghreed M. Fagieh, Esraa M. Bakhsh, Kalsoom Akhtar, Sher Bahadar Khan, Shahid Ali Khan, Effat A. Bahaidarah, Tahani A. Homdi
Summary: A composite hydrogel based on sodium alginate/coffee waste (Alg/coffee) was designed as an adsorbent for the removal of organic and inorganic pollutants from water. The hydrogel showed high adsorption efficiency for Pb(II) and acridine orange dye (AO). The adsorption of Pb(II) and AO followed the Langmuir isotherm and pseudo-second-order kinetic models. Real sample analysis demonstrated the effectiveness of Alg/coffee hydrogel beads in removing Pb(II) pollutants.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Naved Azum, Maroof Ali
Summary: The research focus is on modifying the physicochemical properties of ionic liquids using green co-solvents and characterizing them at the molecular level using spectroscopic techniques. The addition of polyethylene glycols (PEGs) to the IL 2-hydroxyethyl ammonium formate (HEF) alters its solvent properties in a positive way. The solvatochromic absorbance probes reveal interesting non-ideal behavior in the absorbance of Reichardt dye 33, which can be attributed to the high dipolarity/polarizability and hydrogen bond donor ability of the HEF + PEG mixtures.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Materials Science, Composites
Barshan Dev, Md. Ashikur Rahman, Md. Reazuddin Repon, Mohammed M. M. Rahman, Aminoddin Haji, Yasir Nawab
Summary: Natural fiber reinforced polymer composites (NFRPCs) are promising eco-friendly alternatives to synthetic fiber composites due to their biodegradability, renewability, low environmental impact, and lightweight properties. The development of NFRPCs has significantly increased in the past decade, meeting the growing demands of industrial sectors. This review provides a comprehensive analysis of the thermal and acoustic properties of NFRPCs, summarizing different natural fibers, their chemical compositions, composite preparation, and future research directions.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Dina F. Katowah, M. M. Alam, Mahmoud A. Hussein, Abdullah M. Asiri, Mohammed M. Rahman
Summary: In this research, a new structure consisting of a core-shell nanocomposite and a shell made of (Graphene oxide-Paraphenylenediamine)/Polypyrrole (Go-PPD)-PPy was synthesized successfully. The developed sensor showed high effectiveness and reliability in detecting Tl3+ ions within a phosphate buffer medium. The performance of the proposed sensor was validated by analyzing real environmental samples.
SURFACES AND INTERFACES
(2023)
Article
Polymer Science
Khasan S. Karimov, Muhammad Tariq Saeed Chani, Noshin Fatima, Abdullah M. Asiri, Mohammed M. Rahman
Summary: Optimized surface-type impedimetric and capacitive proximity sensors have been fabricated on paper substrates using rubbing-in technology. These sensors can detect objects by sensing changes in impedance and/or capacitance when the object approaches, and they can be widely used in various fields due to their low cost, easy fabrication, and environmentally friendly materials.
Review
Chemistry, Multidisciplinary
Hafsah A. Klfout, Abdullah M. Asiri, Khalid A. Alamry, Mahmoud A. Hussein
Summary: Polybenzoxazine (PBz) is an excellent resin with diverse applications. The peculiar properties of benzoxazines have attracted the attention of researchers worldwide. However, petroleum-based benzoxazines are facing environmental concerns, leading to the research and development of bio-based alternatives. Bio-based polybenzoxazine, epoxy, and polysiloxane-based resins have gained interest in recent years due to their anticorrosion, eco-friendly, affordable, and low water absorption properties. This review provides an overview of polybenzoxazine, focusing on the advances in synthesizing bio-based polybenzoxazine, their properties, and their use in coating applications.
Article
Environmental Sciences
Nadjem Lakhdari, Delloula Lakhdari, Mohammed Berkani, Yasser Vasseghian, Fatsah Moulai, Mohammed M. Rahman, Rabah Boukherroub, Tejraj M. Aminabhavi
Summary: NiFe-PANI nanocomposites were synthesized and used for efficient photocatalytic degradation of diclofenac sodium (DCF) in water sources. The nanocomposites showed a stable and superior photocatalytic efficiency, even after cycles of recycling.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
