Article
Chemistry, Physical
C. Gomez-Polo, S. Larumbe, A. Gil, D. Munoz, L. Rodriguez Fernandez, L. Fernandez Barquin, A. Garcia-Prieto, M. L. Fdez-Gubieda, A. Muela
Summary: The study investigates the effects of Cr and N doping on the properties of TiO2 anatase nanoparticles, including adsorption capacity, photocatalytic performance, and antibacterial response. Doping with Cr and Cr/N enhances adsorption capacity and photocatalytic performance, with Cr-TiO2 nanoparticles exhibiting antibacterial activity under visible light. The differences in electrostatic charge and nanoparticle dispersion are suggested as the main reasons for the varied antibacterial response among the doped nanoparticles.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
K. Chandramouli, B. Suryanarayana, T. Anil Babu, Vemuri Raghavendra, D. Parajuli, N. Murali, Venkaiah Malapati, Tulu Wegayehu Mammo, P. S. Shanmukhi, Umesh Reddy Gudla
Summary: The structure, particle size, and antibiotic nature of synthesized ZnO nanoparticles were studied using XRD, TEM, and FTIR, revealing spherical particles with a single wurtzite hexagonal crystal structure. The correlation between defect and antibiotic properties of ZnO was identified.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Characterization & Testing
M. M. Abutalib, A. Rajeh
Summary: In this study, silver (Ag) nanoparticles were synthesized using an aqueous extract of fresh leaves of Chenopodium murale and TiO2 nanoparticles were synthesized using the sol-gel technique. New nanocomposites with enhanced mechanical properties and antibacterial activity were prepared, showing the potential for use in food packaging applications.
Article
Environmental Sciences
M. Aravind, M. Amalanathan, Sadia Aslam, Arsh E. Noor, D. Jini, Saadat Majeed, P. Velusamy, Asma A. Alothman, Razan A. Alshgari, Mohammed Sheikh Saleh Mushab, Mika Sillanpaa
Summary: This work successfully used eco-friendly green synthesis to produce Ag-TiO2 nanofibers, which exhibit excellent catalytic and antibacterial properties. The nanofibers show a favorable crystal structure and morphology, and demonstrate efficient photocatalytic degradation of dyes under direct sunlight. The Ag-TiO2 nanofibers also exhibit exceptional antibacterial activity against Gram-positive and Gram-negative bacteria.
Article
Environmental Sciences
Priyanka Panchal, Devina Rattan Paul, Shubham Gautam, Poonam Meena, S. P. Nehra, Sanjeev Maken, Anshu Sharma
Summary: In this study, MgO nanoparticles and Ag/MgO nanocomposites were synthesized using aloe vera plant extract. The green-synthesized materials were characterized using various techniques and were found to exhibit enhanced photocatalytic and antimicrobial activities. The Ag/MgO nanocomposites showed high degradation efficiency of methylene blue and phenol, as well as effective killing of E. coli bacteria. The findings suggest the potential of these green-synthesized materials for environmental and medical applications.
Article
Green & Sustainable Science & Technology
Sangmo Kang, Jungho Hwang
Summary: This study presents a strategy for fabricating reduced graphene oxide-wrapped Ag/TiO2 nanofibers and demonstrates their efficient CO2 photoreduction performance under visible light.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Materials Science, Ceramics
Amna Ajmal, Mohamed E. El Sayed, Muhammad Farooq Warsi, Mohammad N. Murshed, Ahmed Samir, Zeinhom M. El-Bahy, Sana Munir
Summary: Al-doped BiSbO4 nanoparticles and reduced graphene oxide composite were synthesized using hydrothermal and ultrasonication methods. Structural confirmation was done using XRD, while morphology was studied using SEM. UV-VIS spectroscopy and FTIR were used to observe the optical properties and vibrational modes. The results showed that the BiSbO4/rGO composite exhibited extraordinary efficiency in degrading dyes.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Multidisciplinary
Nuray Yerli-Soylu, Aysen Akturk, Ozlem Kabak, Melek Erol-Taygun, Funda Karbancioglu-Guler, Sadriye Kucukbayrak
Summary: This study synthesized titanium dioxide fibrous nanocomposites doped with silver nanoparticles using sol-gel and electrospinning methods. The resulting nanocomposite membrane exhibited excellent photocatalytic and antibacterial activity after high-temperature calcination.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2022)
Article
Chemistry, Multidisciplinary
Jiamin Bi, Huiyu Sun, Xiaoxia Ke, Lai Xu, Ruidan Liu, Lanlan Zhu, Ru Qiao
Summary: The multishell-structured NaYF4:Yb,Tm,Nd@NaYF4:Yb,Nd@SiO2/Ag@TiO2 (UC@SiO2/Ag@TiO2) nano-spheres were prepared for the first time, showing enhanced NIR-triggered photocatalytic activity under the synergistic effect of upconversion and plasmons. The incorporation of Yb/Nd shell significantly improved the upconversion luminescence (UCL) efficiency of NaYF4:Yb,Tm,Nd@NaYF4:Yb,Nd upconversion nanophosphors (Yb/Tm/Nd@Yb/Nd UCNPs), and the addition of Ag nanoparticles further enhanced the UCL intensity due to the plasmon resonance effect. The final UC@SiO2/Ag@TiO2 exhibited higher photocatalytic activity and antibacterial activity compared to UC@SiO2@TiO2.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Hongwei Ding, Jingjing Yang, Rui Liu, Yan Li, Xueliang Liu, Xiangyue Wang, Lin Jin
Summary: Driven by clean solar energy, photocatalytic technology using mesoporous TiO2 nanoparticles modified with Ag nanocrystals and polydopamine shows high efficiency in degrading organic pollutants and killing pathogenic bacteria.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Shyam Tonde, Shrikant More, Chinmay Hazra, Debasree Kundu, Shravanti Joshi, Ajinkya Satdive, Saurabh Tayde, Deepak Bornare, Bhagwan Toksha, Jitendra Naik, Aniruddha Chatterjee
Summary: In this study, 1D TiO2 sub 10 nm nanowires were successfully synthesized using a one pot hydrothermal method and decorated with silver for enhanced photocatalytic activity and antibacterial properties. The resulting super-hydrophobic coating on cotton fabric also exhibited enhanced UV-blocking performance. These sub 10 nm TiO2 nanowires hold great potential for industrial and domestic wastewater treatment.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Siyuan Zhang, Zewen Sun, Yue Zhou, Wenshu Chen, Qianhui Wu, Jianhua Sun, Leiming Lang
Summary: Ag nanoparticles significantly enhance the photocatalytic activity of self-organized TiO2 nanotube structures. In this study, novel Ag/TiO2 tube-in-tube fibers were prepared using a simple electrospinning technology and calcination process. As a photocatalyst, the composite efficiently catalyzes the photodegradation of the model organic pollutant, rhodamine B, under visible light irradiation, showing superior photocatalytic activity compared to undoped TiO2 tube-in-tube fibers. This enhancement is attributed to the plasmonic characteristics of Ag nanoparticles, which promote light absorption and charge transfer feasibility. The simple, low-cost, and green fabrication route of the composite provides a novel means for preparing similar materials, holding great promise for wider application in the future.
Article
Chemistry, Multidisciplinary
ZabnAllah M. Alaizeri, Hisham A. Alhadlaq, Saad Aldawood, Mohd Javed Akhtar, Mabrook S. Amer, Maqusood Ahamed
Summary: This study synthesized and characterized pure and silver (Ag)-doped MgO NPs, and evaluated their photocatalytic activity and biocompatibility. The results showed that Ag-doped MgO NPs exhibited higher degradation of methylene blue dye under UV irradiation compared to pure MgO NPs, and displayed good biocompatibility with human normal umbilical vein endothelial cells (HUVECs).
Article
Biochemistry & Molecular Biology
Raffaella Rescigno, Olga Sacco, Vincenzo Venditto, Alessandra Fusco, Giovanna Donnarumma, Mariateresa Lettieri, Rosalba Fittipaldi, Vincenzo Vaiano
Summary: In this study, P-doped TiO2 photocatalysts with different molar percentages were prepared and their photocatalytic activity under visible light irradiation was tested. The doping of phosphorus significantly enhanced the photocatalytic activity, as evidenced by the decolorization of methylene blue dye. The most active photocatalyst also showed better performance than commercial TiO2 under simulated sunlight irradiation, and had a high inactivation efficiency against Escherichia coli.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2023)
Article
Chemistry, Physical
Uriel Chacon-Argaez, Luis Cedeno-Caero, Ruben D. Cadena-Nava, Kendra Ramirez-Acosta, Sergio Fuentes Moyado, Perla Sanchez-Lopez, Gabriel Alonso Nunez
Summary: Ag and TiO2 nanoparticles were directly synthesized on cotton fabrics using sonochemical and solvothermal methods. The impregnated fabrics were characterized and showed successful formation and negligible leaching of nanoparticles. The Ag-TiO2/cotton composites exhibited improved photocatalytic activity and biocide activity against Staphylococcus aureus and Escherichia coli.
Article
Materials Science, Multidisciplinary
Azam Khan, Umair Alam, Danish Ali, Detlef Bahnemann, M. Muneer
Article
Chemistry, Physical
U. Alam, S. Kumar, D. Bahnemann, J. Koch, C. Tegenkamp, M. Muneer
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Chemistry, Multidisciplinary
Umair Alam, Azam Khan, Danish Ali, Detlef Bahnermann, M. Muneer
Article
Chemistry, Multidisciplinary
Azam Khan, Umair Alam, Danish Ali, M. Muneer
Article
Chemistry, Physical
Ateeq Ahmed, M. Naseem Siddique, Umair Alam, T. Ali, P. Tripathi
APPLIED SURFACE SCIENCE
(2019)
Article
Engineering, Chemical
Umair Alam, Tariq A. Shah, Azam Khan, M. Muneer
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Chemistry, Multidisciplinary
Azam Khan, Mohtaram Danish, Umair Alam, Saad Zafar, Mohammad Muneer
Article
Optics
T. Ali, Ateeq Ahmed, M. Naseem Siddique, Umair Alam, M. Muneer, P. Tripathi
Article
Chemistry, Physical
Umair Alam, Nishith Verma
Summary: A series of novel Z-scheme-based CoxNi1-xWO4/g-C3N4 photocatalysts were synthesized to enhance redox abilities and improve photocatalytic activities. The composite material showed high efficiency in degrading complex organic pollutants and selectively transforming benzyl alcohol to benzaldehyde through a Z-scheme charge transfer pathway. The results provide a new direction for the development of efficient Co-Ni bimetallic tungstate-based photocatalysts for various redox reactions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Environmental Sciences
Umair Alam, Komal Pandey, Nishith Verma
Summary: Photocatalytic treatment of wastewater using nanomaterials is an efficient energy saving technology. In this study, CNW-gCN/ACF nanocomposite is synthesized and used as a photo catalyst for efficient removal of glyphosate and Cr(VI) from water. The photocatalytic efficiency of CNW-gCN/ACF in the simultaneous removal of both pollutants from co-contaminated feed is found to be greater than that in single feed system under identical experimental conditions.
Article
Chemistry, Physical
Mohammad Saood Manzar, Muntathir Alshabib, Umair Alam, Muhammad Nawaz, Mukarram Zubair, Anamalia Ferreira Silva, Nuhu Dalhat Mu'azu, Lucas Meili, Emre Cevik, Hissah A. Alqahtani
Summary: This study investigates the use of low-cost steel dust wastes for decontamination of water containing Eriochrome black T (EBT) dye. The results show that the steel dust particles have a mesoporous structure with heterogeneous surface functionalities, including metal oxides and C-O groups. The particles exhibit high affinity towards the EBT dye and can be used for multiple regeneration cycles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Environmental
Aradhana Singh, Umair Alam, Priyanka Chakraborty, Basker Sundararaju, Nishith Verma
Summary: An effective strategy to combat rising CO2 levels is to convert CO2 to value-added chemicals using microalgal technology. The study demonstrates the production of formate from CO2 using Chlamydomonas reinhardtii and Spirulina microalgae, enhanced by potassium-doped graphitic carbon nitride (K-g-C3N4). Experiments in a photobioreactor show that formate production is significantly increased with K-g-C3N4. This study proposes a clean route to low-carbon alternative production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Umair Alam, Arin Pandey, Nishith Verma
Summary: A novel anthraquinone (AQ) integrated and S-scheme-based NiTiO3-gC(3)N(4) (NT-gCN) photocatalytic system is synthesized with an improved electron transfer rate for hydrogen production. The AQ-NT-gCN photocatalyst exhibits a significantly enhanced H-2 evolution rate, attributed to the spatial separation of charge carriers expedited by AQ. The radical trapping test data provide evidence for the S-scheme charge transfer mechanism in AQ-NT-gCN.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Mohtaram Danish, Ziyaur Rasool, Haider Iqbal, Reesha Fatima, Shubham Kumar, Mohammad Muneer
Summary: Highly efficient vanadium doped ZnO nano-rods supported with MWCNTs (V@ZnO/MWCNT) were prepared by sol-gel impregnation method. Various characterization techniques were used to analyze the synthesized materials. The photocatalytic activity of V@ZnO/MWCNT was tested by studying the degradation of priority organic pollutants under UV light. V@ZnO/MWCNT showed the best photocatalytic activity among the synthesized nanocomposite materials.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
