Article
Engineering, Environmental
Akash N. Ghoti, Ashokrao B. Patil, Satish K. Pardeshi
Summary: Titanium dioxide nano-rods were synthesized using a hydrothermal method, and cadmium sulphide and indium-doped cadmium sulphide quantum dots were sensitized on their surfaces. The material was characterized using various methods, and the results showed that indium doping can improve the photoelectrochemical and photocatalytic properties of the material.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Meng-Chin Lin, Sz-Nian Lai, Kim Tuyen Le, Jyh Ming Wu
Summary: The quartz/TiO2 heterostructure shows a significant enhancement in organic dye degradation and hydrogen production through a synergistic piezophototronic effect, resulting from mechanical force-induced piezoelectric polarization.
Article
Nanoscience & Nanotechnology
Palyam Subramanyam, Bhagatram Meena, Duvvuri Suryakala, Challapalli Subrahmanyam
Summary: The study demonstrates that incorporating Bi2Se3 nanoflowers into TiO2 electrode significantly enhances the PEC performance, leading to an increase in hydrogen production by an order of magnitude. The binary TiO2/Bi2Se3 nanocomposite electrode exhibits high photocurrent density and hydrogen conversion efficiency.
ACS APPLIED NANO MATERIALS
(2021)
Article
Energy & Fuels
Zhu Liu, Kang Xu, Hai Yu, Zhaoqi Sun
Summary: In this study, MoS2/TiO2 heterostructure arrays modified with Ag nanoparticles were successfully synthesized to enhance the photoelectrochemical and photocatalytic properties, with the best performance achieved by a hydrothermal reaction time of 12 hours. The synergistic effect of MoS2/TiO2 heterostructure, surface plasmon resonance of Ag nanoparticles and narrow bandgap of MoS2 was proposed to explain the enhancement of these properties.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Polymer Science
Rontgen B. Gapusan, Mary Donnabelle L. Balela
Summary: Anatase TiO2 nanoparticles were successfully immobilized on the surface of polyaniline-coated kapok fiber, demonstrating excellent photocatalytic activity under visible light for degrading pollutants like methyl orange and Cr(VI). The nanocomposite also showed antibacterial activity against E. coli bacteria under visible light, indicating potential applications in environmental remediation and antimicrobial coatings.
Article
Multidisciplinary Sciences
Arsalan Ul Haq, Luca Montaina, Francesca Pescosolido, Felicia Carotenuto, Federica Trovalusci, Fabio De Matteis, Emanuela Tamburri, Paolo Di Nardo
Summary: Electrically conductive scaffolds with directional alignment of muscle fibers were fabricated using 3D printing micro-stereolithography. The conductive ink used for printing was made by blending polyethylene glycol diacrylate, Irgacure 819, curcumin, and polyaniline. The obtained scaffolds demonstrated well defined morphology and semi-conducting properties. Cyclic voltammetry analyses detected electroactivity and highlighted ionic diffusion between the polymer and the electrolyte solution. The conductive scaffolds displayed tunable conductivity and provided an optimal environment for cultured mouse cardiac progenitor cells.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Electrical & Electronic
Wangcheng Liu, Yu-Chung Chang, Jinwen Zhang, Hang Liu
Summary: This study presents an innovative wet spinning technique to produce conductive fibers by co-spinning a polyacrylonitrile (PAN) and polyaniline (PANI) blend solution with a neat PAN solution. The resulting side-by-side (SBS) fibers exhibit high conductivity and superior mechanical performance, making them suitable for electronic textiles.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Soyoung Noh, Hye Yeon Gong, Hyun Jong Lee, Won-Gun Koh
Summary: By incorporating electrically conductive polyaniline into a polyethylene glycol hydrogel matrix using UV-induced photolithography, electrically conductive hydrogel micropatterns were successfully generated in a few seconds. Culturing C2C12 myoblasts on this substrate resulted in selective cell adhesion to the conductive hydrogel regions, promoting myogenic differentiation and aligning myotubes in accordance with the pattern arrangement. The expression of myosin heavy chain on the patterned substrate indicates its potential as a substrate for myogenic cell functionalization.
Article
Chemistry, Analytical
Marzieh Aliya, Ehsan Nazarzadeh Zare, Hassan Faridnouri, Matineh Ghomi, Pooyan Makvandi
Summary: The interaction between tyrosinase and sulfonated starch-graft-polyaniline@graphene nanocomposite was investigated using electrochemical methods. The immobilized tyrosinase showed activity in the electrochemical detection of three substrates. The nanocomposite was characterized and the enzyme immobilization was successfully achieved through a drop-casting technique. The modified electrode exhibited enhanced catalytic effects on the redox agent compared to the bare electrode.
Article
Biotechnology & Applied Microbiology
Thara Rathna, JagadeeshBabu PonnanEttiyappan, D. RubenSudhakar
Summary: TiO2-WO3 nanoparticles embedded in PANI membranes showed enhanced membrane properties, such as better hydrophilicity, antifouling properties, higher porosity, and improved heavy metal removal efficiency in the removal of Cr(VI) from aqueous solutions. The membranes exhibited significant Cr(VI) reduction and self-cleaning properties under visible light irradiation.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Samar M. Fawzy, Ghada E. Khedr, Nageh K. Allam
Summary: Density functional theory was used to investigate the effect of Te-Ti doping on TiO2. Te doping resulted in band gap narrowing and the formation of mid-gap states, reducing the birefringence of TiO2 in the UV region. Te-Ti combined with native oxygen vacancies and hydrogen interstitials showed potential as catalysts for photo-electrochemical water-splitting. The catalytic activity for oxygen evolution reaction was highest in Te-Ti + O-v material, while for hydrogen evolution reaction, Te-Ti + H-i material performed the best.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Paper & Wood
Hossein Barani, Aadel Miri, Hassan Sheibani
Summary: The electrical conductivity of cotton fabrics was enhanced through in situ synthesis of graphene or polymerization of conductive polymer. The polypyrrole coating exhibited excellent electrical conductivity, while the electrical conductivity of polyaniline-coated cotton fabrics depended on the molar ratio of aniline to oxidant.
Article
Chemistry, Multidisciplinary
Jiaxin Mou, Yunlan Xu, Dengjie Zhong, Haixing Chang, Jun Li, Chunzi Xu, Hui Wang, Hongyu Shen
Summary: In order to enhance the optical absorption range and charge transfer efficiency, a ZnIn2S4/PANI/TiO2/Ti photoanode was developed and applied in a photocatalytic fuel cell (PFC) system for organic pollutants removal and chemical energy recovery. The prepared photoanode achieved a maximum photocurrent density of 4.19 mA cm(-2) (1.2 V vs. SCE). The PFC constructed with the ZnIn2S4/PANI/TiO2/Ti composite photoanode and Cu cathode showed a Rhodamine B (RhB) removal efficiency of 93.80% (1 h), maximum power density (P-max) of 18.83 mu W cm(-2), and short-circuit current density (J(sc)) of 0.26 mA cm(-2). The improved photocatalytic activity was attributed to the excellent photoelectric properties of the ZnIn2S4/PANI hybrid material, where PANI acted as a photosensitizer to enhance the visible light absorption by the photoanode. The photoexcited electrons of ZnIn2S4 and PANI were directly transferred to the conduction band (CB) of TiO2, while the holes accumulated in the valence band (VB) of PANI participated in the oxidation reaction. This synergistic effect facilitated the separation of photogenerated electron-hole pairs and improved the photoelectric conversion efficiency of PFC.
NEW JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Sushma A. Rawool, Kishan K. Yadav, Vivek Polshettiwar
Summary: This review article discusses the recent developments in photocatalytic CO2 conversion using defective TiO2, focusing on the synthesis methods, impact on properties, theoretical investigations, and challenges faced by photocatalysts for sustainable fuel production utilizing solar energy. Importance of enhancing photocatalyst performance is highlighted for successful implementation in combating climate change and meeting energy demands.
Article
Materials Science, Multidisciplinary
Yangfan Zhang, Yao Li, Han Yu, Kai Yu, Hongbing Yu
Summary: Defect sites on oxide semiconductors play a crucial role in promoting photocatalytic performance and modulating the bandgap structure of photocatalysts. The role of interfacial coordinatively unsaturated defect sites between metal and oxide in photocatalysis is still under debate. Through experimental and computational investigations, it has been found that interfacial coordinatively unsaturated defect sites act as visible-light-responsive sites and facilitate charge migration and separation across the metal-oxide interface, resulting in enhanced photocatalytic activity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Review
Biotechnology & Applied Microbiology
Mohammad Mansoob Khan, Shaidatul Najihah Matussin, Ashmalina Rahman
Summary: Pathogenic microbes in healthcare facilities pose a major concern due to their impact on medical devices. The rise of antibiotic resistance has made combating microbial infections a critical health concern and research area. Metal oxide and chalcogenide-based materials have shown promise as antimicrobial agents due to their inherent activity and ability to inhibit microbial growth.
BIOPROCESS AND BIOSYSTEMS ENGINEERING
(2023)
Article
Materials Science, Ceramics
Sajid Ali Ansari
Summary: Solar energy conversion is vital for the development of visible light photocatalysts in various fields. This study focused on the use of elemental semiconductor red phosphorus/ZnO nanohybrid (Z-Rp) for visible light driven photocatalytic activity in pollutant degradation. The addition of red phosphorus improved the structural and optical properties of zinc oxide, leading to enhanced visible light photocatalytic activity. The prepared Z-Rp nanohybrids exhibited excellent performance in degrading methyl orange dye under visible light, making them a sustainable alternative to metal-based plasmonic nanoparticles for solar energy conversion.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Ashmalina Rahman, Owais Ahmed Malik, Mohammad Mansoob Khan
Summary: This study examined the antioxidant activities of green-synthesized pure zinc oxide and doped zinc oxide using aqueous leaf extract of Ziziphus mauritiana. Machine learning models were used to accurately predict the photoantioxidant activities based on input variables such as dopants, crystallite size, lighting condition, and antioxidant concentration. The results showed that doping and lighting condition had a significant impact on the photoantioxidant activities of the materials, with Mg doping and lighting condition having the highest weights according to the artificial neural network models.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Analytical
Sanjeev Kumar Kannan, Subramani Esakkiappa, Esokkiya Anthonysamy, Sudalaimani Sudalaimuthu, Yusran Sulaiman, Mohammad Mansoob Khan, Jeyabharathi Chinnaiah, Giribabu Krishnan
Summary: An electrochemical sensor using a polysulfide modified gold electrode was developed for the detection of spermine. The reduction current of gold oxide decreased in the presence of spermine, proportional to its concentration. The sensor showed a linear range of 1.55-250 μM with good selectivity.
Article
Chemistry, Multidisciplinary
Shaidatul Najihah Matussin, Fazlurrahman Khan, Mohammad Hilni Harunsani, Young-Mog Kim, Mohammad Mansoob Khan
Summary: In this study, irregular pentagonal CeO2 and cobalt-doped CeO2 nanoparticles were synthesized, and their structural, optical, and morphological properties were investigated. The results showed that cobalt doping enhanced the photocatalytic and photoantibacterial activities of CeO2.
Article
Environmental Sciences
L. El Hammari, R. Hamed, K. Azzaoui, S. Jodeh, S. Latifi, S. Saoiabi, O. Boukra, A. Krime, A. Boukra, A. Saoiabi, B. Hammouti, M. M. Khan, R. Sabbahi, G. Hanbali, A. Berisha, M. Taleb, O. Dagdag
Summary: Hydroxyapatite (HAp) was synthesized and used to adsorb lead (II) from an aqueous solution. The efficiency of Pb+2 removal was investigated by varying the Pb+2 concentrations, adsorption contact time, and HAp mass. The Langmuir isotherms and pseudo-second-order kinetic model were found to fit the adsorption process well. The study also revealed that the adsorption process was exothermic, spontaneous, and predominantly dominated by chemisorption.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Review
Materials Science, Multidisciplinary
Khadijat Olabisi Abdulwahab, Mohammad Mansoob Khan, James Robert Jennings
Summary: This review provides a concise summary of the basic properties of ferrites, applicable synthetic methods, and recent advances in their application in energy-related fields. Emphasis is placed on materials prepared by modern techniques and the effects of intrinsic magnetism and external magnetic fields on their efficiency in energy applications.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(2023)
Article
Engineering, Electrical & Electronic
Asyiqin Zulkiflee, Mohammad Mansoob Khan, Mohammad Hilni Harunsani
Summary: Bismuth oxyhalides (BiOX, X = Cl, Br, and I) have attracted a lot of attention due to their unique layered structures, optical, and electronic properties. These bismuth-based photocatalysts have shown excellent efficiency in photocatalytic activities such as pollutant removal, water splitting, antibacterial activity, and sensor studies under visible light irradiation. However, their practical application is limited by their band structures and fast recombination of electron-hole pairs. Various modifications, such as doping and heterojunction design, have been explored to enhance their photocatalytic performance under visible light. This review summarizes the synthesis methods, modifications, and applications of bismuth oxyhalides in photocatalysis, hydrogen production, antibacterial studies, and sensing properties.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Nazish Parveen, Fatimah Othman Alqahtani, Ghayah M. Alsulaim, Shada A. Alsharif, Kholoud M. Alnahdi, Hasna Abdullah Alali, Mohamad M. Ahmad, Sajid Ali Ansari
Summary: The P-G-ILO nanohybrid was prepared by free radical grafting co-polymerization technique and characterized by various techniques. It showed higher adsorption capacity for diclofenac than the ILO nanoparticle. The Freundlich isotherm model and pseudo second order kinetic model provided the best fit to the adsorption behavior, and the adsorption was spontaneous, endothermic, and increased the surface randomness. The electrostatic interaction, hydrogen bonding, and dipole interaction were the main mechanisms of adsorption. The P-G-ILO nanohybrid was reusable.
Article
Chemistry, Multidisciplinary
Aamir Hanif, Md. Abdul Aziz, Aasif Helal, Mahmoud M. Abdelnaby, Abuzar Khan, Rajesh Theravalappil, Mohd Yusuf Khan
Summary: This study presents a simple and moderate temperature method for synthesizing nitrogen-doped carbons for high-performance CO2 capture. By using nitrogen-rich Albizia procera leaves as the precursor and conducting single-stage pyrolysis and activation at appropriate temperatures, carbon materials with different surface characteristics and high nitrogen content were obtained. These carbon materials exhibited outstanding CO2 adsorption performance and are suitable for various adsorption applications.
Review
Chemistry, Multidisciplinary
Khadijat Olabisi Abdulwahab, Mohammad Mansoob Khan, James Robert Jennings
Summary: This review provides a summary of recent developments in the doping of ceria nanomaterials with both metal and non-metal elements for various applications. Metal dopants are categorized into different blocks, including s, p, d, and f, while non-metal dopants mainly consist of elements such as N, S, P, F, and Cl. Non-metal doped ceria is commonly synthesized through calcination and hydrothermal methods, and is mainly applied in photocatalysis and as cathode materials for LiS batteries. On the other hand, metal doped ceria nanomaterials are synthesized through a wider range of methods and have been evaluated for numerous applications including catalysts, antibacterial agents, fuel cells, gas sensors, and colorimetric detectors. Dual/co-doped ceria materials containing both metals and non-metals are also discussed, with co-doping often resulting in improved properties compared to single-element doping. The review concludes by highlighting future research directions and unresolved issues in the synthesis and applications of doped ceria nanomaterials.
Article
Chemistry, Multidisciplinary
Asyiqin Zulkiflee, Mohammad Mansoob Khan, Mohd Yusuf Khan, Abuzar Khan, Aniz Chennampilly Ummer, Mohammad Hilni Harunsani
Summary: In this study, an eco-friendly photocatalyst, BiOCl and Zr-doped BiOCl (ZBCl), with enhanced visible light-induced photocatalytic activities were prepared through a simple co-precipitation method. The synthesized materials were characterized using various analytical techniques. Photocatalytic studies showed that ZBCl exhibited higher photocatalytic activity for the degradation of rhodamine B dye under visible light irradiation. Among the synthesized materials, 1% ZBCl showed the highest photocatalytic efficiency, degrading 97.7% of RhB dye within 60 min. The research also demonstrated enhanced response under visible light irradiation for ZBCl, indicating its potential as a photocatalyst and photoelectrode material.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shaidatul Najihah Matussin, Fazlurrahman Khan, Pathum Chandika, Mohammad Hilni Harunsani, Norhayati Ahmad, Young-Mog Kim, Won-Kyo Jung, Mohammad Mansoob Khan
Summary: CeO2 nanoparticles were synthesized using a modified polyol method, and their structure, size, and morphology were studied. Varying ratios of diethylene glycol (DEG) and water resulted in different particle sizes. The synthesized CeO2 nanoparticles showed good antidiabetic activity and biocompatibility. CeO2 prepared with Ce(NO3)(3) and CeCl3 precursors exhibited higher enzyme inhibition activity.
Article
Materials Science, Biomaterials
Azeez Abdullah Barzinjy, Samir Mustafa Hamad, Vinos Mushir Faris, Ahmed Fattah Abdulrahman, Mohammad Mansoob Khan, Amir Abdulrahman Ahmad
Summary: A low-cost and environmentally friendly method using weeping willow leaf extract as a reducing agent was employed for synthesizing magnetite nanoparticles (Fe3O4 NPs). The synthesized NPs showed plasmonic properties under solar radiation and were able to significantly raise the temperature of water. The optimal pH value for the Fe3O4 NPs was found to be 6, resulting in high stability and a dramatic increase in water temperature.
BIOMATERIALS SCIENCE
(2023)
Review
Engineering, Electrical & Electronic
Ashmalina Rahman, James Robert Jennings, Mohammad Mansoob Khan
Summary: This review provides a comprehensive overview of the synthesis and applications of nanostructured CuInS2 in photocatalytic applications. Various strategies, including the introduction of dopants, surface decoration, and heterojunction formation, have been summarized to improve the photocatalytic performance of CuInS2. However, scientific challenges such as the high carrier recombination rate limit the broad application of CuInS2.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)