Article
Chemistry, Multidisciplinary
Ruyuan Zhang, Lei Wang, Fatima-ezzahra Ettoumi, Miral Javed, Li Li, Xingyu Lin, Yanqun Xu, Yating Lu, Xingfeng Shao, Zisheng Luo
Summary: By optimizing the extraction parameters, high extraction rate and molecular weight peach gum polysaccharides were successfully obtained, which were further used as precursors for carbon dots preparation with excellent fluorescence intensity and stability.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Review
Chemistry, Analytical
H. K. Melvin Ng, G. K. Lim, C. P. Leo
Summary: Carbon dots (CDs) are nanomaterials with photoluminescence properties useful for detecting hazardous materials, synthesized from biowaste and chemicals through methods like hydrothermal and microwave-assisted synthesis. Additional dopants like nitrogen and sulfur can enhance their performance, and immobilization into a solid substrate allows for reuse. Interaction with heavy metals enables quantification of heavy metal concentrations in water samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Agricultural Engineering
Dandan Guo, Yuang Wang, Ying Gao, Yinong Lyu, Yunhao Lin, Yueshen Pan, Lin Zhu, Yuezhao Zhu
Summary: Nitrogen has a significant influence on the properties of microwave-assisted hydrothermal carbonization (MHTC) products of Spirulina platensis. The study investigated the effects of temperature and time on the distribution of products and nitrogen migration in MHTC. Results showed that increasing temperature led to a decrease in nitrogen content in hydrochar and an increase in amine-N content in carbon dots.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Physical
Gabriela Rodriguez-Carballo, Cristina Garcia-Sancho, Manuel Algarra, Eulogio Castro, Ramon Moreno-Tost
Summary: Carbon dots (CDs) are carbon nanomaterials with great photoluminescent features, low cytotoxicity, and excellent water stability and solubility. In this study, the catalytic performance of VOPO4 in the synthesis of nitrogen-doped carbon dots (N-CDs) was evaluated. The N-CDs obtained showed high photoluminescence due to the presence of oxidized groups on their surfaces, making them potentially useful in photocatalytic degradation.
Article
Engineering, Environmental
Xianzhu Yang, Kun Yan, Chenguang Yang, Dong Wang
Summary: A multifunctional dual-responsive biopolymeric nanocoating with synergistically enhanced fluorescent and antibacterial properties has been designed and developed in this study. The nanocoating, composed of tannic acid rooted carbon dots and alginate-zinc complex, demonstrated excellent detection capabilities for biological molecules and enhanced antibacterial performance on a commercial fabric wipe.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Barbara La Ferla, Barbara Vercelli
Summary: The controllable synthesis of red-emitting carbon quantum dots (r-CDs) is of fundamental importance for their application in advanced medical large-scale applications. In this study, we present an experimental investigation on the synthesis and post-synthesis purification treatments of r-CDs. We propose three synthetic strategies and observe challenges in the efficiency, yield, and separation of r-CDs using different precursors.
Article
Nanoscience & Nanotechnology
Xiaodong He, Kasi Gopinath, Gnanasekar Sathishkumar, Lingli Guo, Kai Zhang, Zhisong Lu, Changming Li, En-Tang Kang, Liqun Xu
Summary: The study demonstrates the synthesis of natural polyphenol tannic acid-capped silver nanoparticles for antibacterial surface coatings, showing significant antibacterial effects both in vitro and in vivo. The functionalized surfaces exhibit minimal cytotoxicity and no side effects on major organs after implantation, indicating their biocompatibility for potential biomedical applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Guiping Liao, Jin Luo, Tengfei Cui, Jie Zou, Mian Xu, Yuhan Ma, Lingsheng Shi, Jia Jia, Chen Ma, Hui Li, Fujian Xu
Summary: In this study, a label-free, sensitive, and selective fluorescence method using carbon dots as a sensor was developed for the detection of trace selenite in water samples. The sensor showed high sensitivity, wide linear range, and excellent selectivity. The carbon dots were synthesized rapidly and efficiently, and demonstrated favorable performance in real water samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Physical
Ruihan Liu
Summary: A facile approach was established to synthesize magneto-fluorescent carbon dots with mixed phase of Fe3O4 and FeO, exhibiting excitation-independent fluorescence behavior for potential multimodal cellular imaging applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Applied
Xiaofeng Sun, Hui Wang, Jinpeng Qi, Shengju Zhou, Hongguang Li
Summary: This study investigated the co-assembly behavior and morphological evolution of carbon dots (CDs) and tannic acid (TA) in aqueous solutions. The research revealed the mechanism of aggregate formation, as well as the impact of TA on the fluorescence properties of CDs, providing a theoretical basis for the expansion of CDs in biology and life sciences.
Article
Chemistry, Multidisciplinary
Fanghui Ma, Qing Zhou, Minghui Yang, Jianglin Zhang, Xiang Chen
Summary: Sulfur quantum dots with a size of approximately 2 nm were synthesized and their fluorescence properties and applications were studied. The fluorescence intensity of the dots could be restored in the presence of alkaline phosphatase, making it a sensitive and selective method for detecting alkaline phosphatase in serum samples.
Article
Biochemistry & Molecular Biology
Tengfei Wang, Hui Luo, Xu Jing, Jiali Yang, Meijun Huo, Yu Wang
Summary: In this study, water-soluble fluorescent carbon dots were synthesized using a hydrothermal method and a CDs/Fe3+ composite was prepared for the determination of ascorbic acid content, showing good recognition and a linear relationship. Satisfactory results were achieved when this method was applied to the determination of ascorbic acid in jujube fruit.
Article
Chemistry, Multidisciplinary
Viviana Bressi, Alina M. Balu, Daniela Iannazzo, Claudia Espro
Summary: Carbon dots (CDs) are a new class of zero-dimensional nano-materials that have excellent properties such as photostability, biocompatibility, fluorescence, and ease of surface modification. The use of renewable biomass, especially waste biomass, for the synthesis of green CDs has gained significant attention as it provides a green solution to waste management goals and circular economy. This article highlights recent advances in the green synthesis and formation mechanism of CDs from biomass, with a focus on innovative one-pot hydrothermal and microwave processes.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Agricultural Engineering
Yujuan Qiu, Fei Wang, Xiaojun Ma, Fen Yin, Dongna Li, Jie Li
Summary: This study proposed an effective strategy for obtaining high yield lignocellulosic biomass carbon quantum dots (LB-CQDs) through acid/alkali-assist hydrothermal carbonization. The LB-CQDs exhibited excellent fluorescence characteristics and were used to prepare carrier materials for the loading and sustained-release of an anticancer drug. This research offers a novel approach for the efficient conversion of lignocellulose into CQDs and the application of LB-CQDs in drug release.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Physical
Shu Dong, Yali Song, Yongzheng Fang, Kai Zhu, Ke Ye, Yinyi Gao, Jun Yan, Guiling Wang, Dianxue Cao
Summary: Carbon dots modified reduced graphene oxides (LAP-rGO-CDs) synthesized via a rapid microwave-assisted method show enlarged interlayer spacing and faster ion transfer rate, making them suitable for potassium ion battery electrodes. LAP-rGO-CDs demonstrate excellent cycling stability and are assembled into a full carbon-based potassium ion capacitor with high energy density and power density.
Article
Chemistry, Physical
Julin Joseph, Aji A. Anappara
Article
Optics
Julin Joseph, Aji A. Anappara
JOURNAL OF LUMINESCENCE
(2017)
Article
Chemistry, Physical
Julin Joseph, Aji A. Anappara
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2017)
Article
Materials Science, Multidisciplinary
A. Simimol, Aji A. Anappara, Harish C. Barshilia
MATERIALS RESEARCH EXPRESS
(2017)
Article
Chemistry, Multidisciplinary
Julin Joseph, Aji A. Anappara
Article
Chemistry, Analytical
Prajith Karadan, Shantanu Aggarwal, Aji A. Anappara, Chandrabhas Narayana, Harish C. Barshilia
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
Article
Chemistry, Analytical
V. A. Ansi, G. Ritu, Thasleena Panakkal, Aji A. Anappara, N. K. Renuka
Summary: Greenish yellow emitting carbon dots prepared from acetic acid through a one pot synthesis can continuously monitor pH and exhibit linear dependence of luminescence with this parameter. Additionally, they can also be used for sensing bio-molecules such as folic acid.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
T. Vidya, M. Anupama, Sajan Muhammed, Julin Joseph, Aji A. Anappara
Summary: Multifunctional carbon dots synthesized through microwave-assisted pyrolysis exhibited high photoluminescence quantum yield and selectivity to nitroaromatic explosives. The dots were used for visual detection of picric acid and UV-to-visible light conversion, achieving color parameters on the CIE chromaticity diagram.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Analytical
Julin Joseph, Aji A. Anappara
Summary: This study compares the fluorescence and room-temperature phosphorescence properties of carbon dots (CDs) with different heteroatom dopings. By introducing sulfur, the CDs exhibit high fluorescence quantum yield and long emission lifetime of phosphorescence.
Article
Chemistry, Multidisciplinary
Saju K. John, Aji A. Anappara
Article
Chemistry, Multidisciplinary
Nishaina Sahadev, Aji A. Anappara
NEW JOURNAL OF CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Saju K. John, Aji A. Anappara
NEW JOURNAL OF CHEMISTRY
(2019)
Article
Materials Science, Multidisciplinary
Prajith Karadan, Santanu Parida, Arvind Kumar, Aji A. Anappara, Sandip Dhara, Harish C. Barshilia
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2017)
Article
Physics, Applied
Saju K. John, Daughty John, N. Bijoy, Raghu Chathanathodi, Aji A. Anappara
APPLIED PHYSICS LETTERS
(2017)
Article
Physics, Applied
Nishaina Sahadev, Aji A. Anappara
JOURNAL OF APPLIED PHYSICS
(2018)
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)