Article
Engineering, Chemical
Shabnam Shoaebargh, Evan Wright, Matthew Csordas, Maria Fe C. Medina, Brian Lichty, David R. Latulippe
Summary: The study found that adding proteins such as bovine serum albumin can significantly reduce membrane fouling rates and increase virus recovery compared to organic polymers. Additionally, pre-blocking the membrane surface with proteins can further enhance virus recovery.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Characterization & Testing
Razieh Beigmoradi, Abdolreza Samimi, Davod Mohebbi-Kalhori
Summary: The controllability of morphology and wettability behavior of polysulfone electrospun nanofiber mats (ENMs) was investigated by adding surfactants, which affected the diameter size, hydrophilicity or hydrophobicity, surface roughness, and chemical composition of the ENMs. Different types of surfactants had varying effects on the properties of the nanofiber mats, with changes observed in contact angle, surface roughness, and diameter.
Article
Engineering, Environmental
K. Khoiruddin, D. Ariono, S. Subagjo, I. G. Wenten
Summary: By modifying AEMs with different hydrophilic additives, this study successfully increased membrane conductivity and resistance to organic fouling. The additives did not significantly affect other properties of the membrane.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Chemical
Lingfeng Ni, Qin Shi, Min Wu, Jie Ma, Yayi Wang
Summary: Although hydrophilic membrane showed higher flux and shorter filtration cycle, it also resulted in higher filtration resistance and increased rejection of microbial metabolites, leading to changes in membrane fouling and microbial community structure in anammox MBR.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Environmental Sciences
Hongyan Bao, Jing Qiao, Ruoyang Zhang, Dekun Huang, Baiyun Wang, Xihuang Lin, Shuh-Ji Kao
Summary: In this study, the temporal variation and influential factors of rainwater dissolved organic matter (DOM) were tracked at a coastal site using dissolved organic carbon (DOC), UV-vis spectra, and molecular markers. The results showed negative correlations between DOC, light absorption, and precipitation amount, as well as higher DOM concentrations in spring and in rain influenced by the land. Human emissions and secondary production played important roles in regulating the level of DOM concentration, and environmental variables confirmed the input from anthropogenic activities. Future studies should focus on how atmospheric deposition affects biogeochemical cycles in coastal regions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Energy & Fuels
Hariana, Adi Prismantoko, Prabowo, Edi Hilmawan, Arif Darmawan, Muhammad Aziz
Summary: Indonesian coal reserves are mainly medium and low-rank coals, which may cause ash-related problems in boilers. Suitable additives, such as aluminum silicate-based, aluminum-based, and magnesium-based additives, can effectively reduce slagging and fouling risks. Through comprehensive evaluation of ash fusion temperature, thermal properties, ash deposit, emission, and ash mineral morphology, it was found that the additives could lower the ash fusion temperature, reduce slagging ash deposits, and decrease flue gas emissions. The aluminum-based additive showed the highest effectiveness in improving combustion stability.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Environmental Sciences
Mingda Zhou, Qin Shi, Yayi Wang
Summary: This study successfully improved the operation efficiency of anammox-MBR by surface-coating hydrophilic modification with polyvinyl alcohol, reducing membrane fouling and stabilizing anammox performance. However, increasing membrane coating thickness leads to higher filtration resistance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Materials Science, Multidisciplinary
Yufeng Jiang, Zhenye Li
Summary: This article reviews the application research progress of additives in organic solar cells and the regulation mechanism of active layer morphology. The current problems in the development of efficient additives are also discussed.
Review
Chemistry, Physical
Qiuju Liang, Wangchang Li, Haodong Lu, Zhenhao Yu, Xinyi Zhang, Qingjie Dong, Chunpeng Song, Zongcheng Miao, Jiangang Liu
Summary: BHJ organic photovoltaics are highly promising for green energy technology, but optimizing the morphology of the active layer is crucial. The addition of solid additives has become a popular strategy, but the relationship between additive properties and active layer morphology is still unclear.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Yuchen Yuan, Chang Tian, Jiadong Liu
Summary: The organic conductive membrane prepared by chemical vapor deposition on a PVDF membrane surface showed stable chemical properties and anti-fouling performance after modification, with a slight decrease in adsorption capacity. Additionally, the presence of an electric field further enhanced the anti-fouling properties of the modified membrane compared to the blank and modified membranes without electric field.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
Amit Singh, Hari Prakash Veluswamy
Summary: Gas hydrates offer potential solutions for various industrial applications, but their slow formation kinetics and harsh operating conditions limit their large-scale implementation. Amino acids and other biobased additives have been found to enhance methane hydrate formation kinetics, without foaming effects, offering flexibility for gas storage and separation. However, certain amino acids can inhibit carbon dioxide and methane hydrate formations. This study investigates the effects of methionine and chitosan on carbon dioxide and methane hydrate formations, finding that methionine promotes both formations while chitosan inhibits methane hydrate formation but promotes carbon dioxide hydrate formation.
Article
Chemistry, Physical
Hui Lin, Xicheng Yao, Minglang Li, Xin Yu, Xiaoyang Du, Gang Yang, Caijun Zheng, Silu Tao
Summary: The use of high-boiling-point solvent additives often fails to optimize the performance of heat-sensitive material systems. However, choosing a volatile solvent additive, such as THF, can achieve similar effects without thermal annealing, effectively improving the performance of OSCs.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Agriculture, Dairy & Animal Science
Nedra Abdelli, David Sola-Oriol, Jose Francisco Perez
Summary: Plant phytogenic feed additives have been widely tested in poultry production to improve feed efficiency, digestion, and reduce pathogenic load, but their mechanisms of action still need further research. More efforts are needed to determine the proper inclusion levels and fully elucidate their mode of actions.
Article
Engineering, Chemical
Adam Oxley, Andrew G. Livingston
Summary: Fouling is a major challenge in membrane-based separations. This study focuses on anti-fouling membranes for organic solvent systems using graft modification. The results show that the anti-fouling properties of the modified membranes depend on the interactions between the modifying polymer and the solvent. Hydrophilic graft modifiers exhibit favorable interactions in water, while hydrophobic graft modifiers exhibit superior anti-fouling properties in polar organic solvents.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Environmental Sciences
Chongbin Wang, Hongchao Wang, Yongsheng Li, Yuanyuan Feng, Zhong qiu Liu, Tian Sheng Zhao, Li Cao
Summary: In this study, a hybrid membrane with excellent antifouling properties was prepared by decorating zwitterionic polymer onto the surface of MOFs. The optimal hybrid membrane showed high water permeation and ion retention, which can be attributed to the existence of water channels and the formation of a superhydrophilic liquid layer. These hybrid membranes have promising applications in water purification.
Article
Environmental Sciences
Mahesan Naidu Subramaniam, Pei Sean Goh, Devagi Kanakaraju, Jun Wei Lim, Woei Jye Lau, Ahmad Fauzi Ismail
Summary: The article delves into the roles of photocatalysis and membrane technology in hybrid photocatalytic membranes for treating wastewater containing persistent organic pollutants (POP). It covers critical reviews on POP's impact, origins, and the challenges and future directions in this field, as well as discussing the fundamentals of photocatalytic mechanism and current trends in photocatalyst design.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Lukka Thuyavan Yogarathinam, Juhana Jaafar, Ahmad Fauzi Ismail, Pei Sean Goh, Mohd Hilmi Bin Mohamed, Mohamad Fahrul Radzi Hanifah, Arthanareeswaran Gangasalam, Jerome Peter
Summary: Graphene oxide and conductive polyaniline coated graphene oxide were used as additives in sulfonated poly(ether ether ketone) nanocomposite membrane to reduce methanol crossover in direct methanol fuel cells. The modified membrane exhibited increased water uptake, ion exchange capacity, and proton conductivity, as well as improved oxidative stability and selectivity for DMFC applications.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Biochemistry & Molecular Biology
Faiz Izzuddin Azmi, Pei Sean Goh, Ahmad Fauzi Ismail, Nidal Hilal, Tuck Whye Wong, Mailin Misson
Summary: Membrane surface modification is a favored strategy to enhance membrane-based separation performance. Biomolecules, with their unique structural and chemical properties, have gained attention as potential modifiers for liquid separation membranes. These biomolecules exhibit high surface hydrophilicity and antimicrobial properties, making them attractive alternatives for the development of high-performance membranes.
Article
Engineering, Chemical
Zhi Chien Ng, Woei Jye Lau, Gwo Sung Lai, Jianqiang Meng, Huihui Gao, Ahmed Fauzi Ismail
Summary: In this study, a novel interlayer-assisted interfacial polymerization technique with the inclusion of graphene oxide (GO) was used to improve the permeability/selectivity trade-off, chlorine attack, and fouling issues of reverse osmosis membranes. The results showed that the PEI-interlayered thin film composite (iTFC) membrane exhibited higher pure water permeance and NaCl rejection compared to the conventional TFC (cTFC) membrane. The inclusion of 0.01 wt/v% GO further enhanced the performance of the iTFC membrane, producing a PEI-interlayered thin film nanocomposite (iTFN-10) membrane with greater pure water permeance without compromising rejection. The iTFN-10 membrane also demonstrated better antifouling and antibacterial properties compared to commercial membranes.
Article
Environmental Sciences
Roziana Kamaludin, Zatilfarihiah Rasdi, Mohd Hafiz Dzarfan Othman, Siti Hamimah Sheikh Abdul Kadir, Mohd Yusri Idorus, Jesmine Khan, Wan Nor I'zzah Wan Mohamad Zain, Ahmad Fauzi Ismail, Mukhlis A. Rahman, Juhana Jaafar
Summary: This study found that BPA exposure can affect the small intestine and intestinal barrier of pregnant rats and their fetuses, but BPA-treated water through photocatalytic membrane does not have detrimental effects on the gastrointestinal tract.
Article
Polymer Science
Targol Hashemi, Mohammad Reza Mehrnia, Aydin Marandi, Ahmad Fauzi Ismail
Summary: Novel mixed matrix membranes were prepared using magnetic casting and nanocomposite technology, resulting in increased water flux and improved anti-fouling properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yanuardi Raharjo, Ahmad Fauzi Ismail, Mohd Hafiz Dzarfan Othman, Mochamad Zakki Fahmi, Saiful, Djoko Santoso, Mochamad Ifan Nugroho, Diana Merna, Maipha Deapati Arief, Risma Chikita Pratama
Summary: This study aimed to develop a novel imprinted zeolite (IZC) and incorporate it into a polyethersulfone (PES) and poly(vinyl pyrrolidone) (PVP) mixed matrix membrane (HF-MMM) for hemodialysis treatment. The optimized parameters showed that this membrane has the potential to effectively remove uremic toxins.
Review
Chemistry, Multidisciplinary
Pei Sean Goh, Zahra Samavati, Ahmad Fauzi Ismail, Be Cheer Ng, Mohd Sohaimi Abdullah, Nidal Hilal
Summary: Membrane technology has gained popularity in industries for separation processes, desalination, and wastewater treatment. The development of nanocomposite membranes that merge nanotechnology and membrane technology has become a rapidly growing research area, motivated by the need for high-performance liquid separation membranes. The unique morphology and topology of nanostructured materials, such as TiO2, have attracted attention due to their hydrophilicity, antibacterial, and photocatalytic properties. This review provides an overview of the modifications of liquid separation membranes using TiO2 as an example of multidimensional nanomaterials, discussing their performance and advantages.
Article
Environmental Sciences
Noresah Said, Woei Jye Lau, Muhammad Nidzhom Zainol Abidin, Amir Mansourizadeh, Ahmad Fauzi Ismail
Summary: In this study, poly(citric acid)-grafted graphene oxide (PGO) was incorporated into single-layer hollow fiber (SLHF) and dual-layer hollow fiber (DLHF) membranes to improve their antifouling properties during water treatment. The optimized PGO loading of 0.7 wt% in SLHF membrane resulted in higher water permeability and bovine serum albumin rejection compared to the neat membrane. Similarly, introducing 0.7 wt% PGO only to the outer layer of DLHF membrane improved its antifouling properties and increased the rejection rate of bovine serum albumin to 97.7%.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
A. Sumisha, G. Arthanareeswaran, A. F. Ismail
Summary: This study mainly focuses on the analysis of casein protein transport characteristics through ultrafiltration membranes. Polysulfone-based polymer membranes modified with different materials are used. The experimental results show that the transport of casein is controlled by convection.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Komathi Kannathasan, Juhana Jaafar, Nuor Sariyan Suhaimin, Nurul Natasha Mohammad Jafri, Sadaki Samitsu, N. H. Alias, A. F. Ismail, T. Matsuura, M. H. D. Othman, Mukhlis A. Rahman, Farhana Aziz, Norhaniza Yusof, Mohammed Rasool Qtaishat, M. I. Ismail
Summary: A novel method of fabricating translucent photocatalytic membrane using a modified morphological structure as a photocatalyst has been developed. The study highlights the effect of translucency on the efficiency of photocatalytic reactions.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Environmental
Nor Akalili Ahmad, Lih Jang Tam, Pei Sean Goh, Nurfirzanah Azman, Ahmad Fauzi Ismail, Khairulnadzmi Jamaluddin, Gangasalam Arthanareeswaran
Summary: In this study, a thin film composite (TFC) reverse osmosis (RO) membrane with high long-term stability and antifouling properties was developed by spray coating the polyamide (PA) layer with oppositely charged titania nanosheets (TNS). The manufactured membranes showed improved permeability and radionuclide rejection, making them suitable for treating radionuclide-containing wastewater. The findings highlight the potential of tailored TFC RO membranes in the treatment of radioactive wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Noor Fauziyah Ishak, Nur Hidayati Othman, Najihah Jamil, Nur Hashimah Alias, Fauziah Marpani, Munawar Zaman Shahruddin, Lau Woei Jye, Ahmad Fauzi Ismail
Summary: Modifying polymeric membranes using ZIF-8 functionalized-2D nanofillers showed improved gas permeability and selectivity performance. The rGO/ZIF-8 and MoS2/ZIF-8 nanofillers were successfully synthesized and characterized. Addition of 10 wt% of each nanofiller to the PES solution resulted in MMMs with enhanced thermal stability. Compatibility between the 2D nanofillers and PES matrix was confirmed by FTIR and XRD analysis. The obtained MMMs exhibited significantly improved gas separation properties, demonstrating the potential of using 2D nanofillers for high-performance membranes.
PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Nurul Syazana Fuzil, Nur Hidayati Othman, Nur Hashimah Alias, Fauziah Marpani, Muhammad Shafiq Mat Shayuti, Munawar Zaman Shahruddin, Mohd Rizuan Mohd Razlan, Norazah Abd Rahman, Woei Jye Lau, Mohd Hafiz Dzarfan Othman, Ahmad Fauzi Ismail, Tutuk Djoko Kusworo, Anwar Ul-Hamid
Summary: In this study, the performance of membrane distillation (MD) was improved by coating MoS2-TiO2 on a PVDF-based hollow fiber membrane. The MoS2-TiO2/PP20 membrane showed enhanced hydrophobicity and porosity, leading to significantly improved MD performances. This work suggests that the MoS2-TiO2 coating can overcome the typical permeability/rejection rate trade-off effect and play a significant role in enhancing MD performances.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Nur Fajrina, Norhaniza Yusof, Ahmad Fauzi Ismail, Farhana Aziz, Muhammad Roil Bilad, Meshel Alkahtani
Summary: This article summarizes recent developments in membrane technology tailored for biogas upgrading, including the structure and classification of membrane materials as well as effective approaches to overcome the trade-off between permeability and selectivity. Additionally, other challenges are comprehensively discussed, and future research required to tackle biogas upgrading issues is projected.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
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)
