Article
Electrochemistry
Hada Sarentuya, Hada Bai, Amurishana
Summary: This study focused on the improved visible light photocatalytic activity of Bi2S3-TiO2 nanocomposite for phenol degradation, which was synthesized by solvothermal method. FE-SEM, XRD, and TEM analyses confirmed the successful synthesis of Bi2S3-TiO2 nanocomposite. Electrochemical experiments showed low recombination rate and faster interfacial charge transfer in Bi2S3-TiO2 nanocomposite. Optical analyses indicated bandgap energies of 3.15 eV, 1.32 eV, and 2.55 eV for TiO2 nanorods, Bi2S3 nanoparticles, and Bi2S3-TiO2 nanocomposite, respectively. Photocatalytic degradation analyses demonstrated successful treatment of phenol solution by TiO2 nanorods, Bi2S3 nanoparticles, and Bi2S3-TiO2 nanocomposite, with different exposure times. Application of Bi2S3-TiO2 nanocomposite for phenol degradation in real-world samples showed effective treatment of phenol in industrial wastewater through photocatalytic degradation.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2023)
Article
Environmental Sciences
Nguyen Minh Viet, Nguyen Thi Mai Huong, Pham Thi Thu Hoai
Summary: A La-TiO2 nanocomposite was synthesized by loading lanthanum onto TiO2, which improved the photodegradation of phenol in wastewater. The characterizations of La-TiO2 showed that the loading of La increased its adsorption light zone and decreased the band gap energy. The photoluminescence spectra confirmed the enhancing separation rate between electron and hole, leading to improved photodegradation efficiency of phenol.
Article
Chemistry, Physical
Huynh Van Bao, Nguyen Minh Dat, Nguyen Thi Huong Giang, Doan Ba Thinh, Le Tan Tai, Dinh Ngoc Trinh, Nguyen Duy Hai, Nguyen Anh Dang Khoa, Le Minh Huong, Hoang Minh Nam, Mai Thanh Phong, Nguyen Huu Hieu
Summary: A zinc oxide-doped titanium dioxide/reduced graphene oxide nanocomposite was successfully prepared and showed promising results in adsorption and photodegradation of methylene blue under UV irradiation due to its high specific surface area and efficiency.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
H. Bouyarmane, C. El Bekkali, J. Labrag, I. Es-saidi, O. Bouhnik, H. Abdelmoumen, A. Laghzizil, J-M Nunzi, D. Robert
Summary: TiO2-hydroxyapatite nanocomposites were prepared and tested for drug degradation under UV light. They showed efficient adsorption and photocatalytic degradation of ciprofloxacin and ofloxacin in water, with higher efficiency at high TiO2 content.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Applied
Juncong Xu, Shufen Su, Xianliang Song, Shucan Luo, Shengying Ye, Wenbei Situ
Summary: A simple nanocomposite photocatalyst HT-rGO/TiO2 was synthesized to degrade deoxynivalenol (DON) and maintain the quality of cereal grains and byproducts. The characterization of HT-rGO/TiO2 was analyzed by various techniques, including XRD, FTIR, Raman spectroscopy, and XPS. The study demonstrated that HT-rGO/TiO2 had a wider response range to light and a higher utilized rate of quantum photons, leading to the step-by-step degradation of DON molecules.
Article
Engineering, Chemical
E. Horvath, J. Gabathuler, G. Bourdiec, E. Vidal-Revel, M. Benthem Muniz, M. Gaal, D. Grandjean, F. Breider, L. Rossi, A. Sienkiewicz, L. Forro
Summary: Water contamination is a serious problem in certain areas of the world due to environmental conditions and poor waste management. This study demonstrates the effectiveness of photocatalytic filters based on titanium dioxide nanowires (TiO(2)NWs) in decontaminating water, especially in electricity-poor regions. The filters can intercept various microbial pathogens and remove a broad range of organic compounds and infective microbes under sunlight exposure.
Article
Environmental Sciences
Jenny Hui Foong Chau, Kian Mun Lee, Yean Ling Pang, Badariah Abdullah, Joon Ching Juan, Bey Fen Leo, Chin Wei Lai
Summary: The study found that the 0.50 wt.% WO3/TiO2 composite material exhibited high photodegradation activity and complete dye mineralization. The superiority of this composite material is attributed to its large surface area, small crystallite size, among other characteristics.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Yu-jie Meng, Shan-shuai Chen, Chao-bing Luo, Ying-jie Song, Zi-wei Xiong, Jun Li, De-qiang Li
Summary: In this study, C-TiO2/CaCO3 nanocomposites were prepared using a one-pot method, which exhibited synergistic adsorption-photodegradation performance. The precursor was formed through a competitive coordination strategy and further carbonized to enhance the adsorption capacity. The nanocomposites showed excellent photocatalytic activity under simulated sunlight, achieving a degradation ratio of 96.46% for methylene blue.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Victor Ruiz-Santoyo, Virginia F. Maranon-Ruiz, Rafael Romero-Toledo, Oscar Arturo Gonzalez Vargas, Alejandro Perez-Larios
Summary: The study synthesized ZrO2-doped TiO2 photocatalysts and characterized them using various techniques. It was found that the ZrO2-doped TiO2 exhibited higher photocatalytic activity compared to pure TiO2 and commercial P25. The differences in degradation behavior were attributed to textural properties and structural defects caused by Zr4+ ion doping into the TiO2 lattice.
Article
Materials Science, Multidisciplinary
Mohammad Rezaei Ardani, Ai Ling Pang, Ujjwal Pal, Muhammad Aniq Shazni Mohammad Haniff, Ahmad Ghadafi Ismail, Azrul Azlan Hamzah, Waheed Ahmad Khanday, Mohsen Ahmadipour
Summary: Nanocomposites of TiO2-MWCNTs were successfully synthesized using ultrasonic-assisted technique. The study investigated the impact of different weight percentages of MWCNTs on the optical, structural, and morphological properties of TiO2. The TiO2/7 wt% MWCNTs nanocomposite exhibited higher photocatalytic performance and lower optical bandgap energy compared to pure TiO2.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Italo Lacerda Fernandes, Danns Pereira Barbosa, Sergio Botelho de Oliveira, Valdeir Antonio da Silva, Marcelo Henrique Sousa, Marly Montero-Munoz, Jose A. H. Coaquira
Summary: The study demonstrates that the double-coated magnetic nanoparticles nanocomposites exhibit excellent photocatalytic activity with strong degradation capability against methylene blue dye, as well as high stability. These nanocomposites have great potential for applications in wastewater treatment and purifying contaminants.
APPLIED SURFACE SCIENCE
(2022)
Article
Environmental Sciences
Monika Patel, Neha Bisht, Priyanka Prabhakar, Raj Kumar Sen, Pradip Kumar, Neeraj Dwivedi, Mohammad Ashiq, D. P. Mondal, Avanish Kumar Srivastava, Chetna Dhand
Summary: We developed an effective electrochemical sensor using a ternary nanocomposite of reduced graphene oxide functionalized with polydopamine and alanine for simultaneous detection of four heavy metal ions (Cd2+, Pb2+, Fe2+, and Cu2+). The sensor exhibited high sensitivity and low interference in detecting the targeted heavy metal ions in water and soil samples with detection limits and sensitivities provided.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
S. Shyamala, S. Kalaiarasi, P. Karpagavinayagam, C. Vedhi, R. R. Muthuchudarkodi
Summary: In this study, ZrO2-PANI nanocomposites were synthesized and characterized. The results showed that ZrO2-PANI exhibited good electrocatalytic activity and stability, making it suitable for formic acid oxidation.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Noha A. Elessawy, Marwa H. Gouda, Mohamed S. Elnouby, Hoda F. Zahran, Aly Hashim, Mona M. Abd El-Latif, Diogo M. F. Santos
Summary: The study developed novel nanocomposite porous beads for the removal of dye contaminants from water, showing high efficiency. The performance of the nanocomposite beads was found to be influenced by the TiO2 weight ratio, with SA/PVP/TiO2-3 presenting the highest deterioration efficiency of 98.9% for methylene blue dye.
APPLIED SCIENCES-BASEL
(2021)
Article
Electrochemistry
Bei-Lei Yan, Jun Wang, Deng Jun, Qiu-Shi Song, Wen-Ning Mu, Tao Yang, Xue-Hua Mao, Wei-Wei Meng
Summary: By developing a novel titanium dissolving slow hydrolysis method, a diphase Li4Ti5O12-TiO2 nanocomposite sphere material with high grain boundary density was synthesized in situ, showing improved rate capability and specific capacity. The outstanding electrochemical performance is attributed to the improved morphology and optimized interface design.
ELECTROCHIMICA ACTA
(2022)
Article
Green & Sustainable Science & Technology
Arashdeep Singh, Vikas Goyal, Jagpreet Singh, Harpreet Kaur, Sanjeev Kumar, Khalid Mujasam Batoo, Jyoti Gaur, Mohinder Pal, Mohit Rawat, Sajjad Hussain
Summary: This research investigates the potential of green synthesis of nickel oxide nanoparticles (NiO NPs) for future engineering and medical applications. The synthesized NiO NPs show promising performance in photocatalytic decolorization and antimicrobial activity. This work provides an efficient method for utilizing synthesized NiO as an effective photocatalyst and bactericidal agent.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Harpreet Kaur, Jagpreet Singh, Pooja Rani, Navpreet Kaur, Sanjeev Kumar, Mohit Rawat
Summary: This research proposes a one-pot synthesis method using pomegranate leaf extract to synthesize CuO nanoparticles with a flower-like morphology, which exhibit efficient photocatalytic activity for the degradation of organic pollutants. The synthesized nanoparticles are characterized using different techniques to analyze their structure, morphology, and adsorption properties. The study demonstrates the high photocatalytic efficiency of this specific morphology of CuO under natural sunlight for the decolorization of various dyes.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Multidisciplinary
Vikas Goyal, Arashdeep Singh, Jagpreet Singh, Harpreet Kaur, Sanjeev Kumar, Mohit Rawat
Summary: This study successfully synthesized Trigonella foenum-graecum@SnO2 nanoparticles using a biogenic process and characterized their properties. The nanoparticles showed efficient photocatalytic and antimicrobial activity.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Applied
Ashutosh Sharma, Khushboo Verma, Sandeep Kaushal, Rahul Badru
Summary: A novel 2-D flakes like Al-BPED MOF has been explored for its catalytic potential in the N-alkylation of amines with dialkyl carbonates. The synthesized Al-BPED MOF showed high efficiency and selectivity in methylating primary and secondary aromatic amines with dimethyl carbonate under optimal conditions.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Maninder Singh, Ravneet Kaur, Jagpreet Singh, Mohit Rawat, Harpreet Kaur, Sanjeev Kumar, Tahani Awad Alahmadi, Sulaiman Ali Alharbi, Milton Wainwright, Abdullah Mohamed
Summary: In this study, pineapple waste leaves mediated gold nanoparticles (Au NPs) were successfully synthesized and showed excellent stability and size distribution. The synthesized Au NPs exhibited good catalytic, photocatalytic, and antimicrobial properties, offering a positive step towards the development of efficient, cost-effective, and sustainable photocatalysts, catalysts, and antimicrobial agents.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2022)
Article
Environmental Sciences
Karanpal Singh, Nancy, Harpreet Kaur, Pushpender Kumar Sharma, Gurjinder Singh, Jagpreet Singh
Summary: The study synthesized undoped and Cobalt-doped zinc oxide nanoparticles (Co doped ZnO NPs) and confirmed the incorporation of the Co dopant through spectroscopic and microscopic techniques. The Co-doped ZnO NPs showed a red shift in the UV-absorption spectra and a decrease in band gap value, indicating successful integration of Co2+ ions into the ZnO matrix. The synthesized NPs exhibited excellent photocatalytic and antimicrobial activity, with 1% Co-doped ZnO showing the highest photocatalytic efficiency.
Article
Environmental Sciences
Harpreet Kaur, Sanjeev Kumar, Sandeep Kaushal, Rahul Badru, Prit Pal Singh, Arivalagan Pugazhendhi
Summary: The present study successfully synthesized highly porous TiO2 by incorporating PANI polymer into the sol-gel chemistry of TiO2/TTIP. The TP samples exhibited a porous ginger-like nanostructure with smaller particle size compared to pristine TiO2. XPS analysis confirmed the presence of hydrogen bonds between Ti-OH groups of TiO2 and protonated nitrogen of PANI. UV-visible absorption study showed a small shift in absorption wavelength for TP8 sample and a reduction in Eg value. FTIR results confirmed the interaction between PANI and TiO2. The TP8 sample showed high photocatalytic activity towards Methylene blue dye degradation. The study offers an excellent photocatalyst TP8 with 8 wt% of PANI for the degradation of MB dye. Evaluation: 8 points
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Monika Sharma, Khushboo Verma, Ajeet Kaushik, Jasminder Singh, Avtar Singh, Rahul Badru
Summary: This study investigated the application of a novel set of 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) and methyl-imidazole (MIm) coupled ionic liquids (ILs) in the Biginelli reaction. In the modified reaction, cinnamaldehyde, urea, and 1,3-diketone were condensed in the presence of 10 mol% of the DBU-MIm coupled IL catalyst at 90 degrees C, yielding dihydropyrimidinones in high to excellent yields in 45 minutes. The effect of temperature, catalytic amount, and solvent was also investigated, as well as the iminium ion mechanism and synergic role played by the [DBUH]+ and [MIm]- moieties established by DFT calculations. The easy recovery and reusability of the DBU-MIm IL catalysts make this protocol simple, benign, and reproducible for Biginelli synthesis.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Nupur Aggarwal, Harpreet Kaur, Naveen Kumar, Jaspreet Kaur, Saransh Malhotra, Anjana Sharma, Shalini Tripathi, Ranvir Singh Panwar, Payal Patial
Summary: This study successfully synthesized Tin (IV) oxide nanoparticles mediated by Ocimum Basilicum leaf extract (SnO2@OBLE NPs) in a cost-effective and environmentally friendly way. X-ray diffraction analysis revealed a tetragonal rutile crystal structure belonging to the P4/2mnm space group. The presence of methanolic phytochemicals as stabilizing, reducing, and capping agents was confirmed by FTIR spectra. The FESEM micrograph showed a non-uniform granular distribution with an average size of 23.29 +/- 1.09 nm. SnO2@OBLE NPs demonstrated great potential as a photocatalyst for the degradation of natural red dye under UV light, with a degradation efficiency of 99.9% at 150 min and a rate constant (k) of 0.0767 min -1.
RESULTS IN CHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
J. Gaur, K. Vikrant, K. -h. Kim, S. Kumar, M. Pal, R. Badru, S. Masand, J. Momoh
Summary: Zinc oxide nanoparticles (ZnO NPs) with hexagonal wurtzite structure were prepared using Carica papaya leaf extract, and they demonstrated excellent photocatalytic activity in the degradation of Congo red dye under UV irradiation.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Materials Science, Multidisciplinary
Jyoti Gaur, Mohinder Pal, Sanjeev Kumar, Harpreet Kaur, Gurmeet Singh Lotey, Kanchan Bala, Arshdeep Supreet, Arshdeep Kaur
Summary: Polyethylene glycol (PEG)-aided zinc oxide (ZnO) nanoparticles (NPs) were synthesized using a fusion of precipitation-cum-hydrothermal method. Various characterization techniques confirmed the formation of PEG/ZnO NPs with wurtzite phase, distinct structural forms, and interactions between PEG and ZnO. The PEG/ZnO NPs showed high crystallinity and mesoporous structure with a significant specific surface area. Photocatalytic activity evaluation of PEG/ZnO-based photocatalyst demonstrated efficient degradation of methylene blue (MB) dye and almost complete mineralization according to pseudo-first-order kinetics and TOC removal analysis, respectively.
FUNCTIONAL COMPOSITES AND STRUCTURES
(2023)
Article
Environmental Sciences
Harpreet Kaur, Sanjeev Kumar, Gaganpreet Kaur, Navjot Kaur, Rahul Badru, Rahul Saini
Summary: The present research reports the synthesis of E. cardamomum-derived TiO2 photocatalyst for the first time. The structural properties of EC:TiO2 are characterized by XRD and reveal an anatase phase with a crystallite size of around 3 nm. The optical study shows strong absorption at 313 nm and a band gap value of 3.28 eV. SEM and HRTEM images demonstrate the formation of nano-sized particles with multi-shapes. FTIR spectrum confirms the presence of phytochemicals on the surface of EC:TiO2 NPs. In photocatalytic activity studies, EC:TiO2 exhibits high efficiency for the degradation of Congo Red dye under UV light, with a rate constant of 0.01320 min-1. The photocatalyst also shows antibacterial activity against S. aureus and P. aeruginosa. These eco-friendly and low-cost synthesized EC:TiO2 NPs have promising applications as photocatalysts and antibacterial agents.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Zholt Kormosh, Susheel K. Mittal, Volodymyr Tkach, Oksana Yurchenko
Summary: Ionic associates of basic fuchsin were used as an electrochemical sensing probe for the determination of 2,4-D and 4-CPA. The influence of membrane composition and modifying additive on electrode characteristics was investigated. The sensors showed promising results for the determination of target compounds in pesticide preparations.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH
(2022)
Proceedings Paper
Computer Science, Information Systems
Arvind K. Sharma, Savita Wadhawan, Richa Datta, Sudesh K. Mittal
Summary: A switching/routing network requires a suitable network topology to simplify real networking. Following specific protocols is crucial for successful communication and fault elimination. The right tools and techniques are essential for problem-solving.
SUSTAINABLE COMMUNICATION NETWORKS AND APPLICATION, ICSCN 2021
(2022)
