Article
Chemistry, Applied
Badria M. Al-Shehri, Sahar K. Mohamed, Shaykha Alzahly, Mohamed S. Hamdy
Summary: Neodymium was incorporated into three-dimensional mesoporous siliceous material TUD-1, forming highly distributed Nd3+ ions in the silica matrix. The adsorption capacity of Nd-TUD-1 for methyl green dye was over 24 times higher than neat TUD-1 material, fitting perfectly with pseudo-second-order model.
JOURNAL OF RARE EARTHS
(2021)
Article
Materials Science, Multidisciplinary
Aryan Boora, Surender Duhan, Vinod Kumar
Summary: This study presents a pioneering investigation into humidity sensing using TUD-1, a mesoporous material developed at Technical University of Delft. The incorporation of nickel metal into TUD-1 enhances its functionality in humidity detection. Various techniques were utilized to verify the structural and chemical properties of TUD-1. The experimental results showed that the NiO-doped TUD-1 nanocomposites exhibited better responses to different humidity levels, with the specimen containing 10% nickel showing the most promising results due to its enhanced pore diameter of 10.4 nm. The addition of nickel oxide enhances the material's sensitivity to moisture and improves its responsiveness and efficiency in detecting changes in humidity levels.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Polymer Science
Vasu Chaudhary, Sweta Sharma
Summary: Mesoporous silica-based hybrid supported catalysts were used for the oxidation of ethylbenzene to acetophenone with a selectivity of 99.79%. The catalysts synthesized using the incipient impregnation method demonstrated excellent catalytic activity compared to previously reported catalysts in the literature.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Chemistry, Physical
Sara Movahedian, Aida Ramazi Farahani, Ali Reza Faraji
Summary: The design of a novel manganese-based dendritic catalyst for the selective oxidation of ethylbenzene and oximes has attracted renewed interest due to its mild reaction conditions, excellent catalytic performance, and magnetic recyclability. The study also investigated the effect of operating parameters and N-hydroxyimides on the catalytic efficiency of the synthesized dendritic catalyst.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Abdullah M. Alhanash, Fatemah A. Alqahtani, Ali Aldalbahi, Mostafizur Rahaman, Mhamed Benaissa, Mohamed S. Hamdy
Summary: Pt nanoparticles were successfully integrated into the mesoporous material TUD-1 using a one-pot sol-gel method to create Pt-TUD-1, which exhibited high efficiency and stability in liquid-phase hydrogenation reactions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Ye Zhu, Xue-Wen Zhang, Fei Wang, Bing Xue, Jie Xu
Summary: Mesoporous carbon nitride (mpg-C3N4) was prepared and used as a catalytic support for CoOx in the selective oxidation of ethylbenzene. The physicochemical properties of the CoOx/mpg-C3N4 materials were characterized, and their catalytic activities were examined under atmospheric pressure. The mpg-C3N4 showed a higher specific surface area and strong interaction with Co (II) species, resulting in a conversion rate of 62% and a selectivity of 84.7% for ethylbenzene under specific reaction conditions.
Article
Nanoscience & Nanotechnology
Young Jin Sa, Sohee Kim, Yesol Lee, Ji Man Kim, Sang Hoon Joo
Summary: In this study, four different mesoporous manganese oxides were synthesized and used as model catalysts to investigate the effects of local structures and Mn valence states on the activity of oxygen electrocatalysis. The results showed that for the oxygen reduction reaction, m-Mn2O3 exhibited the highest activity, followed by m-MnO2, m-MnO, and m-Mn3O4. For the oxygen evolution reaction, m-MnO2 showed the highest activity, followed by m-Mn2O3, while m-MnO and m-Mn3O4 had lower activity. These findings suggest that high-valent Mn species and disordered atomic arrangements induced by nanostructuring significantly affect electrocatalysis.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Sitaramulu Palli, Yogendra Kamma, Nazeer Silligandla, Benjaram M. Reddy, Venkateshwar Rao Tumula
Summary: Mesoporous ceria-cobalt mixed oxides, ceria, and cobalt oxide catalysts were prepared using a modified template-assisted method and showed improved activity in the oxidation of ethylbenzene. The catalyst with a composition of Ce0.9Co0.1O2 exhibited the best performance, attributed to its facile redox behavior, increased surface adsorbed oxygen species, and larger surface area.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Engineering, Chemical
Lin Zhang, Lei Xing, Jie Liu, Tieyue Qi, Meng Li, Lidong Wang
Summary: A bifunctional sulfur-doped catalyst/adsorbent, CoTUD-1/S, was prepared in this study, with a catalytic rate of 0.083 mmol/L/S for MgSO3 and a removal efficiency of over 90% for Hg2+. The results suggest that Co-TUD-1/S is a feasible strategy for improving wet desulfurization efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Changlong Wang, Hans-Josef Bongard, Claudia Weidenthaler, Yufeng Wu, Ferdi Schuth
Summary: This study synthesized a mesoporous delta-MnO2 electrocatalyst with high surface area, high pore volume, and narrow pore size distributions using a nanocasting route. The electrocatalyst exhibited high efficiency, selectivity, and robustness for the electrochemical oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) under alkaline conditions. The reaction kinetics and pathways of the electrochemical HMF oxidation over this advanced electrocatalyst were investigated and provided insights.
CHEMISTRY OF MATERIALS
(2022)
Article
Environmental Sciences
Huiqing Ma, Xinyue Liu, Zhaoqi Wen, Xianliang Yi, Yang Liu, Hao Zhou
Summary: This study reports a competitive Mn(II) removal during the microbial-induced carbonate precipitation process under nutrient-rich conditions, revealing the important role of urease in the indirect oxidation of Mn(II).
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Pengpeng Qiu, Bingqian Xu, Ziqi Sun, Tao Zhao, Yuchi Fan, Yuye Zhao, Jianping Yang, Lianjun Wang, Wan Jiang, Xiaohang Zhu, Xiaopeng Li, Guihua Zhu, Yuan Fang, Ziling Zhang, Chongfei Gu, Wei Luo
Summary: A facile strategy to synthesize 1D bimodal mesoporous metal oxides nanofibers through assembling organic-inorganic composite monomicelles in a beam stream has been demonstrated. The fabricated WO3 and its derivatives exhibit uniform continuous fibrous structure with dual mesopore sizes and large surface area. Gas sensors made by Pd-decorated mesoporous WO3 NFs display outstanding sensing performance to ethylbenzene, making them promising for rapid environmental monitoring.
SCIENCE CHINA-MATERIALS
(2021)
Article
Microbiology
Xuejiao Huang, Xiaofang Nong, Kang Liang, Pengling Chen, Yi Zhao, Daihua Jiang, Jianhua Xiong
Summary: In this study, a strain of Serratia marcescens QZB-1 isolated from acidic red soil showed high tolerance against Mn(II) and efficiently removed high concentration of Mn(II) mainly through adsorption.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Chemistry, Applied
Mohamed S. Hamdy, Abdullah M. Alhanash, Murad Eissa, Fatma A. Ibrahim, Mohamed Abboud
Summary: The selective oxidation of cyclohexane was catalyzed by a new series of catalytic materials, which consisted of two different active sites incorporated into a three-dimensional mesoporous material. The prepared catalysts were characterized using various techniques, and their catalytic activity was tested. The results showed that the materials containing two catalytic sites exhibited better performance than those containing only one catalytic site. The most effective material contained Co and CeO2 as the active sites.
JOURNAL OF POROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Vassiliki Daikopoulou, Euaggelia Skliri, Eirini D. Koutsouroubi, Gerasimos S. Armatas, Ioannis N. Lykakis
Summary: This study reports the synthesis and catalytic application of mesoporous Au-loaded Mn3O4 nanoparticle assemblies with different Au contents for the selective oxidation of anilines into nitroarenes. The results show that Au/Mn3O4 MNAs containing 0.5 wt % Au exhibit the best catalytic performance among different catalysts, leading to high yields and selectivity of the corresponding nitroarenes.
Article
Polymer Science
S. Vandarkuzhali, B. Viswanathan, M. P. Pachamuthu, S. Kishore
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2020)
Article
Chemistry, Analytical
S. Anbu Anjugam Vandarkuzhali, M. P. Pachamuthu, V. V. Srinivasan, Sahar K. Mohamed, Hisham S. M. Abd-Rabboh, Mohamed S. Hamdy, V. T. Balamurugan
Summary: This work presents a simple chemical method to synthesize Ag nanoparticles incorporated on amine-functionalized mesoporous silica SBA-15 support. The synthesized sample shows efficient catalytic activity for various dye degradation and outperforms other catalysts. The reaction kinetics indicate pseudo-first-order kinetics with higher rate constant for the Ag/NH2-SBA-15 catalyst compared to Ag/aminoclay.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Muthusamy Poomalai Pachamuthu, Sambath Baskaran, Chandrakumar Manivannan, Somasundaram Chandra Kishore, Stefano Bellucci, Ramasamy Boopathy
Summary: The study successfully demonstrated the use of CoO/TUD-1 material for the degradation of methylene blue dye in wastewater treatment, showing its potential application in organic contaminant removal.
Article
Chemistry, Physical
S. Mahendran, V. V. Srinivasan, G. Karthikeyan, M. P. Pachamuthu
Summary: Mesoporous supports with metal incorporation have shown high catalytic activity in organic synthesis and biomass conversion. The niobium incorporated mesoporous materials (Nb-MCM-41) fabricated in this study exhibited efficient conversion of HMF with high selectivity to DFF. Characterization of the solid Nb-MCM-41 catalysts using X-Ray diffraction, thermogravimetric analysis, and other techniques revealed their crystal structure, stability, porosity, and acidity.
MOLECULAR CATALYSIS
(2021)
Article
Biochemistry & Molecular Biology
R. Karthick, G. Velraj, M. P. Pachamuthu, S. Karthikeyan
Summary: Dihydropyridines, including the prototype nifedipine, are widely used in hypertension treatment. In this study, derivative compounds of dihydropyridine were synthesized and their structural characteristics related to biological activity were examined using quantum chemical calculations. Molecular docking and dynamics were also employed to study the binding interaction and stability of the compounds with proteins.
JOURNAL OF MOLECULAR MODELING
(2022)
Article
Chemistry, Physical
S. Anbu Anjugam Vandarkuzhali, G. Karthikeyan, M. P. Pachamuthu
Summary: The study demonstrated the synthesis of Fe nanoparticles on NH2-functionalized SBA-15 and their use as a catalyst for the selective oxidation of HMF to FDCA. The catalyst showed high efficiency under low oxygen pressure, with an FDCA yield of up to 89.4% at 100% HMF conversion, and it exhibited good recyclability with stability over multiple cycles. This protocol provides an alternative catalytic pathway for the synthesis of value-added chemicals and intermediates derived from biomass.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Applied
T. Preethi, K. Senthil, M. P. Pachamuthu, R. Balakrishnaraja, B. Sundaravel, N. Geetha, Stefano Bellucci
Summary: In this study, iron-doped tin oxide nanoparticles (Fe-SnO2 NPs) were successfully synthesized using a simple hydrothermal method. Structural characterization confirmed the incorporation of Fe ions into the SnO2 lattice, without any deviation in the crystal system. Optical analysis revealed a red shift in the absorption band and a decrease in the band gap energy with increasing Fe-dopant concentration. The Fe-SnO2 NPs exhibited excellent photocatalytic and antibacterial properties.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Food Science & Technology
V. T. Balamurugan, J. Haritha, R. ArunChendhuran, S. Srivel, J. Nikhil AmalaJerrin, S. Kishore, M. P. Pachamuthu
Summary: In this study, ATR-MIR spectroscopy was used to analyze the characteristics of cold pressed and hot pressed groundnut oils for the first time. The effect of temperature on the oils was also investigated. The results showed that PLSR and K-means derivative spectra provided the best calibration models for differentiating cold pressed oils and different brands of hot pressed oils.
FOOD ANALYTICAL METHODS
(2022)
Article
Nanoscience & Nanotechnology
Azhagapillai Prabhu, Venugopal Sudha, Muthusamy Poomalai Pachamuthu, Balachandran Sundaravel, Stefano Bellucci
Summary: This study investigates the synthesis of Al-SBA-15 catalysts using ultrasonic irradiation and their catalytic activity in the tert-butylation reaction. The results show that the catalysts synthesized using ultrasonic irradiation exhibit a well-ordered hexagonal mesoporous structure and high product selectivity.
JOURNAL OF NANOMATERIALS
(2022)
Article
Physics, Applied
V. T. Geetha, G. Ramalingam, M. P. Pachamuthu, S. Gopinath, C. Ragupathi, T. A. Sukantha
Summary: NiO and different concentrations of Ce/Mg-doped NiO nanoparticles were synthesized by a simple microwave method, with urea as a precursor material. The structural, optical, magnetic properties, as well as antibacterial efficiency, were investigated.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2022)
Article
Chemistry, Multidisciplinary
Yang Xiao, Anand Ramanathan, Bala Subramaniam, Arvind Varma
Summary: In this study, Pt supported on Nb, W, and Zr-incorporated KIT-6 catalysts were prepared and tested for the gas-phase hydrodeoxygenation (HDO) of a model compound of bio-oil. The results showed that the 1 wt % Pt/Nb-KIT-6 catalyst exhibited excellent HDO performance under relatively mild conditions, and the catalyst showed good resistance to coking.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
V. Tharmaraj, S. Anbu Anjugam Vandarkuzhali, G. Karthikeyan, M. P. Pachamuthu
Summary: This study reports the synthesis of gold nanoparticles dispersed over aminopropyl-functionalized magnesium phyllosilicate composites. The nanocomposite catalyst showed excellent reduction performance for dyes and organic components, making it a promising alternative for environmental treatment.
SURFACES AND INTERFACES
(2022)
Article
Optics
Preethi Thangavel, Senthil Karuppanan, Pachamuthu Muthusamy Poomalai, Ashokan Sakthivel, Geetha Nandagopalan, Stefano Bellucci
Summary: In this study, pure tungsten oxide nanoparticles were synthesized using a simple co-precipitation method with different chelating agents. The use of oxalic acid resulted in reduced particle size and enhanced light-absorption ability. The synthesized nanoparticles showed superior catalytic degradation of dyes.
Article
Chemistry, Multidisciplinary
Thangavel Preethi, Muthusamy Poomalai Pachamuthu, Karuppanan Senthil, Stefano Bellucci
Summary: In this study, reduced graphene oxide (rGO) layers were decorated on the surface of copper oxide (CuO) nanoparticles using a simple and in-situ hydrothermal reduction method. The synthesized nanocomposites showed a nanoplate-like morphology with uniform particle distribution. The nanocomposites exhibited higher efficiency in photocatalytic dye degradation, antimicrobial activity, and electrochemical sensing compared to pure CuO.
Article
Engineering, Environmental
S. Anbu Anjugam Vandarkuzhali, G. Karthikeyan, M. P. Pachamuthu
Summary: This study demonstrates the biosynthesis of silver nanoparticles and gold nanoparticles using Borassus flabellifer fruit extract as a reducing and stabilizing agent under microwave irradiation, for the reduction of organic dyes and biological applications. The synthesized nanoparticles showed potential antibacterial and anticancer properties, with faster reduction rates for methylene blue and congo red dyes, and high selectivity and sensitivity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
