Article
Chemistry, Analytical
Xiurong Zhai, Fan Xu, Yujiao Li, Fangying Jun, Shuai Li, Chunxian Zhang, Hua Wang, Bingqiang Cao
Summary: Silver-doped ZnO nanorods arrays grown in-situ onto ITO via one-pot hydrothermal route show highly selective and recyclable electroanalysis of phosphothioate pesticides, with good detection performance and photocatalytic degradation efficiency.
ANALYTICA CHIMICA ACTA
(2021)
Article
Engineering, Electrical & Electronic
V. V. Gawade, S. R. Sabale, R. S. Dhabbe, S. Kite, K. M. Garadkar
Summary: The study reports the green synthesis of zinc oxide nanostructures using Syzygium cumini leaf extract, which exhibit spherical shape with a particle size of 25-30 nm. The synthesized ZnO nanostructures show high photodegradation efficiency for model dye pollutants under UV-Vis light, with 88% degradation efficiency for methyl orange and 84% for methylene blue within specific time frames.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Digambar Y. Nadargi, Jyoti D. Nadargi, Mohaseen S. Tamboli, Asiya M. Tamboli, Imitaz S. Mulla, Ahmad Umar, Nguyen Tam Nguyen Truong, Sharad S. Suryavanshi
Summary: A green synthesis approach using medicinal plant extraction is used to create GO-loaded Ag/ZnO nanocomposites. The material shows a hexagonal wurtzite structure of ZnO and a face-centered-cubic phase of Ag and AgCl. The efficiency of methyl orange degradation is improved by doping Ag and further improved by loading GO onto the catalyst.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
C. Jayakrishnan, S. R. Sheeja, J. Duraimurugan, S. Prabhu, R. Ramesh, G. Suresh Kumar, P. Maadeswaran, Mohd Shkir
Summary: This study synthesized three types of ZnO nanostructures using a hydrothermal method with urea as the surfactant, and found that they could effectively degrade methyl orange dye. The use of urea as a surfactant had a significant impact on the morphology and photocatalytic performance of ZnO nanostructures.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
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
Engineering, Chemical
Paula Sfirloaga, Madalina-Gabriela Ivanovici, Maria Poienar, Catalin Ianasi, Paulina Vlazan
Summary: LaMnO3 and different doping ions of perovskite type nanomaterials were synthesized by the sol-gel method. The crystal structures of the doped materials were changed and the Ag-doped samples showed slightly better catalytic activity in methyl orange removal.
Article
Chemistry, Inorganic & Nuclear
Khurram Shahzad, Tayyaba Najam, Muhammad Sohail Bashir, Muhammad Altaf Nazir, Aziz Ur Rehman, Muhammad Aswad Bashir, Syed Shoaib Ahmad Shah
Summary: The study successfully synthesized silver and zinc oxide supported periodic mesoporous organosilicates for catalytic degradation of dye-containing industrial effluents. Results showed that silver-supported organosilicates had higher degradation efficiency and reusability compared to zinc oxide-supported organosilicates.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Piangjai Peerakiatkhajohn, Teera Butburee, Jung-Hoon Sul, Supphasin Thaweesak, Jung-Ho Yun
Summary: The synthesis of Al/ZnO NPs via the sol-gel method with different calcination temperatures and Al dosages showed significant impacts on their structural, morphological, and optical properties. Among them, the ZnO NPs calcined at 200℃ exhibited the highest light absorption property and MO removal efficiency under UV light, while the 5% Al/ZnO NPs demonstrated superior photocatalytic activity under visible light irradiation.
Article
Materials Science, Multidisciplinary
Jia You, Liyuan Zhang, Lihua He, Bingqing Zhang
Summary: ZnO-TiO2/SO42- (ZTOS) heterojunction composites were prepared using an inorganic precipitation-peptization method, exhibiting enhanced photocatalytic activity and stability. The molar ratios of Zn : Ti were found to significantly influence the performance. The heterojunction structure of ZnO-TiO2 provided stronger light absorption and efficient charge separation.
Article
Chemistry, Inorganic & Nuclear
Ning Wang, Zhentao Zhao, Lin Liu, Jinjuan Xing
Summary: Metal oxide semiconductor, particularly titanium dioxide (TiO2), is widely used in photocatalytic treatment of dye wastewater, but faces challenges such as low sunlight utilization and fast recombination of electron-hole pairs. Through synthesizing muscovite supported TiO2 with tungsten dopant, this study achieved improved separation efficiency of photoinduced carriers and enhanced photocatalytic activity, providing a novel strategy for preparing efficient and stable TiO2-based photocatalytic materials.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
Surya Mary, Aleena Norbert, Sadasivan Shaji, Rachel Reena Philip
Summary: This study presents the successful use of solid and stable ZnO nanorods fabricated by anodization as an adsorbent and photocatalyst for water treatment. The ZnO nanorods exhibit superior photocatalytic property and good cyclic stability.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Alicia Levana Butt, John Kabangu Mpinga, Shepherd Masimba Tichapondwa
Summary: The study found that South African ilmenite sands, in the presence of H2O2 under acidic conditions, can effectively degrade methyl orange dye, with light irradiation accelerating the reaction rate. The optimization parameters required specific pH, UVB irradiation, catalyst loading, and hydrogen peroxide concentration for complete degradation to occur.
Article
Chemistry, Physical
Nan Dai, Shuang Yi, Xiaotian Zhang, Li Feng, Hui Ding, Dan Song, Xiaoying Liu, Jinsong Rao, Yuxin Zhang
Summary: A typical adsorption modification method was used to load ferrous ions onto the Laponite@diatomite composite, creating a catalyst with good photo-Fenton performance. The study found that the catalyst can effectively degrade cationic dyes under optimal reaction conditions, and exhibits structural stability and reusability.
APPLIED SURFACE SCIENCE
(2023)
Article
Environmental Sciences
Zhong-Yue Chang, Zi-Yang Wang, Rui Zhang, Lei Yu
Summary: In this study, coupling n-type semiconductor perylene diimide (PDI) with biodegradation was found to significantly enhance the biotic decolorization and mineralization of methyl orange, with the generation of free radicals identified as a key factor in accelerating the process. The study provides insights into the synergistic mechanism of microbial and photocatalytic action, offering a feasible approach for the combination of biodegradation and photocatalysis for azo dyes.
Article
Chemistry, Physical
Samvit G. Menon, A. K. Bedyal, Trilok Pathak, Vinay Kumar, Hendrik C. Swart
Summary: Highly efficient and reusable Sr4Al14O25: Eu2+, Dy3+@ZnO nanocomposites were developed for the photocatalysis of toxic pollutants from aqueous systems. The materials exhibited excellent photophysical and photocatalytic properties, degrading pollutants rapidly under UV-Visible irradiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Muhammad Ali Siddiqui, Aisha Jabeen, Alidad Chandio, Sohail Tayyab, Ke Yang
Summary: This study investigated the electronic characteristics, surface topography, and surface roughness of a Ti-3Cu alloy in phosphate buffered saline (PBS) containing bovine serum albumin (BSA). It was found that the accumulation of serum protein caused restructuring of the oxide film and a decrease in donor densities, which is beneficial for the osseointegration of Ti-3Cu implants.
ANALYTICAL LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Abdul Karim Shah, Ghulam Taswar Shah, Aqeel Ahmed Shah, Yeung Ho Park, Ayaz Ali Shah, Mooseok Choi, Shoaib Ahmed, Syed Nizamuddin Shah Bukhari, Ali Dad Chandio, Muhammad Atta Mahar, Muhammad Ali Shar, Abdulaziz Alhazaa
Summary: Nickel-supported hierarchical zeolite catalysts were prepared through a desilication reassembly process and applied in one-pot menthol synthesis. The physicochemical and acidic properties of pure microporous ZSM-5/USY zeolites were significantly improved, resulting in outstanding catalytic activity and menthol selectivity for the Ni/HZ-0.5 M catalyst.
Article
Materials Science, Multidisciplinary
Ali Dad Chandio, Iftikhar Ahmed Channa, Asif Ahmed Shaikh, Shabbir Madad, Syed Bilal Hasan Rizvi, Aqeel Ahmed Shah, Jaweria Ashfaq, Muhammad Ali Shar, Abdulaziz Alhazaa
Summary: This research aims to upgrade indigenous Pakistani iron ore through common metallurgical processes. Magnetic properties of the ore were determined, and high-temperature reduction roasting process and magnetic separation process were used to increase the iron concentration. Results showed that the iron concentration increased from 34 wt. % to 56 wt. % at 900°C temperature, coal-to-ore ratio of 20 wt. %, and 2 hours of reduction time, and magnetic properties were induced.
Article
Nanoscience & Nanotechnology
Ebrahim Chalangar, Elfatih Mustafa, Omer Nur, Magnus Willander, Hakan Pettersson
Summary: In this study, a new low-cost template-assisted synthesis method was used to fabricate vertically aligned ZnO nanorod arrays on Si (100). The nanorods were grown on a double seed layer composed of reduced graphene oxide (rGO) and Al-doped ZnO nanoparticles. The seed layer was prepared by spray-coating the substrate with graphene and dip-coating it into an Al-doped ZnO sol-gel solution. A growth template was created using a double-layer resist spin-coated on top of the rGO/ZnO:Al seed layer and patterned by colloidal lithography. The results showed successful chemical bath deposition of ZnO nanorods with controllable diameter and density in the nanoholes of the patterned resist mask. Our novel method has the potential to fabricate electronic devices on various smooth substrates with a short thermal budget and the seed layer acting as a conductive strain-relieving back contact. The top contact can be easily made by depositing a suitable transparent conductive oxide or metal, depending on the specific application.
Article
Physics, Multidisciplinary
Irfan Ali Abro, Ali Dad Chandio
Summary: Aircraft and aero-engine applications have utilized nickel aluminide coatings to enhance the corrosion resistance and oxidation resistance of high-temperature thermal barrier coatings. This study aims to develop a new diffusion barrier pure Al-rich beta-NiAl bond coat. Aluminide coatings are deposited using in situ chemical vapor deposition (CVD) on K-403 superalloy substrate with and without a pre-electro-deposited nickel layer. Material characterization techniques reveal a double-layered structure, with an outer-layer of Al-rich beta-NiAl and an inner inter-diffusion zone.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Crystallography
Ambreen Azmat, Shafaq Asrar, Iftikhar Ahmed Channa, Jaweria Ashfaq, Irfan Ali Chandio, Ali Dad Chandio, Muhammad Ali Shar, Mohamad S. S. AlSalhi, Sandhanasamy Devanesan
Summary: This study compares the performance of biocompatible alloys containing non-toxic elements, such as tin (Sn) and niobium (Nb), with commonly used alloys containing aluminum (Al) and vanadium (V). The results show that alloys containing Nb and Sn have lower corrosion rates in simulated body fluid and higher hardness, making them suitable for orthopedic implants in humans.
Article
Chemistry, Inorganic & Nuclear
Imran Ali, Yasir Jamil, Saeed Ahmed Khan, Yunxiang Pan, Aqeel Ahmed Shah, Ali Dad Chandio, Sadaf Jamal Gilani, May Nasser Bin Jumah, Yusra Fazal, Jun Chen, Zhonghua Shen
Summary: The qualitative study of copper-cobalt ingot sample was conducted using laser induced breakdown spectroscopy (LIBS), and CuCo2O4 nanoparticles were synthesized using the alloy as a target material for Nd:YAG laser ablation. The composition and morphology of the synthesized nanoparticles were determined using various techniques including X-ray diffraction (XRD), energy dispersive X-ray (EDX) analysis, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and dynamic light scattering (DLS). The synthesized nanoparticles exhibited antibacterial activity and potential for magnetic hyperthermia.
Article
Chemistry, Analytical
Komal Majeed, Jaweria Ambreen, Saeed Ahmed Khan, Saz Muhammad, Aqeel Ahmed Shah, Muhammad Ali Bhatti, Syeda Sitwat Batool, Muhammad Farooq, Syed Nizam Uddin Shah Bukhari, Ali Dad Chandio, Sadaf Jamal Gilani, May Nasser Bin Jumah
Summary: Wastewater treatment is indispensable to prevent adverse health effects and deterioration of the quality of life on earth. Photocatalysis using nanocomposites of manganese oxide (Mn3O4) and nickel oxide (NiO) has been studied for its effectiveness in purifying wastewater. The synthesized nanomaterials were characterized using various techniques and the photocatalytic performance of the Mn3O4/NiO nanocomposite (NC) was evaluated. The results show that the NCs have a high photocatalytic degradation efficiency of 95% for removing methylene blue (MB) dye from wastewater.
Article
Biochemistry & Molecular Biology
Hamna Shahid, Aqeel Ahmed Shah, Syed Nizam Uddin Shah Bukhari, Anjum Zehra Naqvi, Iqra Arooj, Mehvish Javeed, Muhammad Aslam, Ali Dad Chandio, Muhammad Farooq, Sadaf Jamal Gilani, May Nasser Bin Jumah
Summary: The synthesis of iron oxide nanoparticles using honey as a reducing and capping agent has shown significant antibacterial, antioxidant, and anti-inflammatory properties, making it a potential alternative to traditional antimicrobial drugs.
Article
Chemistry, Multidisciplinary
Jaweria Ashfaq, Iftikhar Ahmed Channa, Abdul Ghaffar Memon, Irfan Ali Chandio, Ali Dad Chandio, Muhammad Ali Shar, Mohamad S. Alsalhi, Sandhanasamy Devanesan
Summary: By incorporating graphene as an inorganic filler, the characteristics of PVA can be improved, enhancing its performance in moisture barrier, oxygen barrier, heat resistance, and mechanical durability. The addition of graphene leads to a significant decrease in water vapor transmission rate and oxygen transmission rate, making it an ideal packaging material.
Article
Chemistry, Multidisciplinary
E. Mustafa, E. A. Dawi, Z. H. Ibupoto, A. M. M. Ibrahim, A. Elsukova, X. Liu, A. Tahira, R. E. Adam, M. Willander, O. Nur
Summary: Water splitting energy production relies on high-performance PECs, and CuO is considered an excellent photocathode material. By incorporating Ag2WO4 nanoparticles onto CuO nanoleaves using SILAR, a CuO/Ag2WO4 composite with outstanding performance in the PEC water splitting process is developed. Factors such as surface active sites, charge separation rate, surface defects, and CuO and Ag2WO4 interaction contribute to the performance of the composite.
Article
Polymer Science
Jaweria Ambreen, Abdul Haleem, Aqeel Ahmed Shah, Fozia Mushtaq, Muhammad Siddiq, Muhammad Ali Bhatti, Syed Nizam Uddin Shah Bukhari, Ali Dad Chandio, Wael A. Mahdi, Sultan Alshehri
Summary: Polymeric cryogels containing poly(N-isopropylacrylamide) were synthesized by cryo-polymerization at subzero temperature, and loaded with silver and palladium nanoparticles using the reducing agent NaBH4. The chemical structure of the cryogels was confirmed by Fourier transform infrared spectroscopy, and their synthesis was confirmed by X-ray diffraction and energy dispersive X-ray. The pore size and surface morphology of the cryogels were studied using scanning electron microscopy. The hybrid cryogels showed superior catalytic performance and antibacterial activity compared to pure cryogels, making them potential candidates for water purification systems and biomedical applications.
Article
Chemistry, Multidisciplinary
Ali Dad Chandio, Asif Ahmed Shaikh, Iftikhar Ahmed Channa, Muhammad Shahzad Bacha, Jahanzeb Bhatti, Muhammad Yasir Khan, Shahid Bhutto
Summary: Graphene Oxide (GO), produced through the oxidation of graphite by potassium permanganate using modified Hummer's method and ozone treatment, exhibits unique properties that make it attractive for various applications. XRD, FTIR, SEM, and UV-visible spectroscopy were used to analyze the crystallographic structure, chemical properties, surface morphologies, and optical properties of GO. The results confirmed the formation of GO from graphite flakes, different interlayer spacing for GO and ozone-treated GO, multilayered structure of GO, and the higher surface area of O-GO.
JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN
(2023)
Article
Chemistry, Multidisciplinary
A. R. Jamali, A. A. Shaikh, A. D. Chandio
Summary: Biodegradable films for food packaging applications have been extensively researched due to their low cost, easy processing, eco-friendly nature, and faster biodegradation. In this study, the addition of ZnO nanoparticles to polyvinyl alcohol (PVA) matrix improved the stability and physical properties of the films. Grapes packed in the films showed enhanced quality, with the 5.0 wt% concentration delivering the best results.
PHYSICAL CHEMISTRY RESEARCH
(2023)