Article
Engineering, Chemical
Liexiao Li, Huajing Gao, Guorong Liu, Shifa Wang, Zao Yi, Xianwen Wu, Hua Yang
Summary: In this study, high-quality carnation flower-like Bi2O2CO3 hierarchical architectures were synthesized via a hydrothermal route, and their photocatalytic activity for the removal of Cr(VI) was investigated. The effects of various factors on the photoreduction efficiency and mechanism were systematically studied. Additionally, the determination of Cr(VI) concentration using UV-vis absorption measurements with 1,5-diphenylcarbazide as the chromogenic agent was examined.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Sylwester Lonski, Dariusz Lukowiec, Krzysztof Barbusinski, Rafal Babilas, Bartosz Szelag, Adrian Radon
Summary: In this study, flower-like magnetite nanoflowers (Fe3O4 NFs) were synthesized using a new and scalable co-precipitation method. The heterogeneous photo-Fenton process was optimized for the degradation of Rhodamine B, utilizing sodium percarbonate as a substitute for H2O2. The study also confirmed the importance of surface functionalization in the catalysts design for heterogeneous photo-Fenton processes.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Feifei You, Yunan Zhou, Danyang Li, Hao Zhang, Dawei Gao, Xiaohong Ma, Rui Hao, Juzhe Liu
Summary: A three-dimensional spatial configuration and heterogeneous interface construction were achieved in a SnS2/SnO2 composite, resulting in a hierarchical flower-like morphology. The composite exhibited excellent selectivity and impressive photocatalytic CO2-to-CO performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Metallurgy & Metallurgical Engineering
Hai-yan Shi, Yi Wang, De-zhi Wang
Summary: Ternary MoSxSe2-x nanosheets with defects were synthesized through a hydrothermal process, where the introduction of S element improved electron transfer ability and provided more electrocatalytic active sites. The optimized MoSSe exhibited superior electrocatalytic hydrogen evolution reaction performance.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Chemistry, Organic
Chuan-Wei Feng, Dan-Yan Wang, Hui-Ling Lu, Zi-Wei Xi, Yong-Miao Shen, Jianyu Cao
Summary: We have developed an efficient visible light-driven method for synthesizing sulfinamides and sulfoxides, which is versatile and easily scalable.
Article
Engineering, Chemical
Ying Wang, Yue Han, Ruiyang Zhao, Jishu Han, Lei Wang
Summary: By doping elements and creating a Z-scheme heterojunction, a high-efficiency flower-like ZnSe/Cu0.08Zn0.92S photocatalyst was constructed, enabling the utilization of abundant solar energy for the production of high-calorie, clean, and pollution-free hydrogen, providing a solution to environmental and resource problems.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Physical
Shuming Li, Hongbang Rui, Tengfei Bao, Yuanyuan Qi, Heng Rao, Ping She, Jun-sheng Qin
Summary: In this study, a molecular phthalocyanine was modified on flower-like ZnIn2S4 nanosheets, resulting in enhanced photocatalytic CO2 reduction and tunable CO/H2 ratio in syngas. The dimension-matched ultrathin heterojunction facilitated charge separation, broad light utilization, and recycling stability, showing great potential for other highly efficient photocatalytic reactions.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yaling Zhao, Yang Liu, Zunjie Zhang, Zhenkun Mo, Chenyi Wang, Shuyan Gao
Summary: In this study, an open-structured catalyst with polycrystalline copper nanoparticles loaded on carbon fiber papers has been prepared by a simple method, achieving high efficiency and selectivity in nitrate reduction to ammonia. The optimal sample exhibited excellent reduction performance in a neutral solution.
Article
Chemistry, Physical
Seema A. Mane, Anil A. Kashale, Gokul P. Kamble, Sanjay S. Kolekar, Suprimkumar D. Dhas, Meenal D. Patil, Annasaheb Moholkar, Bhaskar R. Sathe, Anil Ghule
Summary: This study presents a facile, economic, efficient, and binder-free strategy to synthesize flower-like Bi2O3 thin films on flexible stainless steel mesh substrates using rotational chemical bath deposition. The Bi2O3/FSSM electrode exhibits high specific capacitance, remarkable cycle stability, and high energy density, making it a promising candidate for electrochemical energy storage devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
N. Manikandan, B. Lakshmi, S. Shivakumara
Summary: Porous flower-like magnetite nanostructures with high surface area and pore volume have been successfully synthesized. The nanostructures exhibit high discharge capacitance and cycle stability, making them promising for supercapacitor applications.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Peijie Weng, Qing Cai, Huadong Wu, Linfeng Zhang, Kun Wu, Jia Guo
Summary: By adjusting the preparation method and introducing CQDs and S doping, the visible-light response and catalytic performance of the Bi4O5Br2 composite photocatalyst can be improved.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Engineering, Environmental
Kunlin Li, Xueyan Chen, Jianghao Zhang, Min Chen, Xiaoxiao Qin, Fei Wang, Kai Li, Jinhou Fang, Changbin Zhang
Summary: In this study, flower-like MgO/Carbon material was synthesized by one-step carbonization of magnesium gluconate and used for H2S oxidation at room temperature. The MgO/Carbon material demonstrated abundant basic sites for H2S adsorption and dissociation due to its high content of MgO and super-hydrophilic surface. Additionally, carbon defects and a well-developed pore structure provided active sites for desulfurization and large space for sulfur storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Fulong Cheng, Fangui Nie, Yuting Fan, Dan Huang, Yinian Wang, Jianxin Fan
Summary: This study synthesized flower-like LaCO3OH materials via a one-step hydrothermal method and evaluated their performance in removing phosphate from wastewater. The adsorbent prepared at a reaction time of 4.5 h (BLC-4.5) exhibited the best adsorption performance, with over 80% of the saturated adsorbed phosphate removed within 20 min. BLC-4.5 had a high adsorption capacity of 228.5 mg/g, broad pH adaptability, and high selectivity for phosphate.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Chenglong Wang, Mengle Yang, Xinming Wang, Huiyuan Ma, Yu Tian, Haijun Pang, Lichao Tan, Keqing Gao
Summary: This study successfully prepared an efficient non-precious bimetallic sulfide catalyst CoS2/MoS2 through a one-step method, which exhibits high yield, selectivity, and excellent stability in electrochemical nitrogen reduction reaction (NRR).
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Applied
Gholamhossein Mohammadnezhad, Fatemeh Ariaeinezhad
Summary: Mesoporous flower-like FeOOH nanostructure was synthesized and transformed into other nanostructures using reductive annealing, showing different catalytic activities. Characterization and studies on the nanostructures were conducted, indicating the importance of specific surface area, morphology, and crystal structure in catalytic reactions.
JOURNAL OF POROUS MATERIALS
(2021)
Review
Food Science & Technology
Pejman Ghaffari-Bohlouli, Hafez Jafari, Nayere Taebnia, Ali Abedi, Armin Amirsadeghi, Seyyed Vahid Niknezhad, Houman Alimoradi, Sina Jafarzadeh, Mahta Mirzaei, Lei Nie, Jianye Zhang, Rajender S. Varma, Amin Shavandi
Summary: There has been a significant increase in animal by-products, such as skin, bones, wool, hides, feathers, and fats, which can spread contamination and viral diseases if not properly disposed of. These by-products are rich in proteins, making them valuable for nutritional, pharmacological, and biomedical purposes. Recycling and extracting high value-added components from animal by-products offer a sustainable approach to address the global challenge and scarcity of landfill resources.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Mozhgan Afshari, Rajender S. Varma, Seyyed Jafar Saghanezhad
Summary: Heteropolyacids (HPAs) are valued for their discrete ionic structure, high proton mobility, strong acidity, hydrothermal stability, and reversible multi-electron redox behavior. However, they have drawbacks such as high solubility in polar solvents and low specific surface area. To address these issues, efforts have been made to support HPAs on various nanomaterials. This article discusses recent catalytic applications of HPA-supported nanocatalysts, focusing on synthesis and organic transformations, as well as remediation of pollutants and deactivation of bacteria in aqueous streams.
COMMENTS ON INORGANIC CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Milad Nayebi, Amir Faraji, Ashkan Bahadoran, Zhian Jamal Othman, Soheila Arghavani, Pouya Ghamari Kargar, Seyed Mehrzad Sajjadinezhad, Rajender S. Varma
Summary: The development of photocatalytic composites that combine metal oxides with acidic and carbon compounds is essential for upgrading biomass waste into value-added materials. The synthesis of a unique two-dimensional TiO2/g-C3N4 heterojunction acidic catalyst was described, which exhibited efficient bifunctional photocatalysis for the generation of 5-hydroxymethylfurfural (5-HMF) under visible light. The catalyst's structural integrity was confirmed through various analyses, and its superior photocatalytic activity and stability make it a promising option for environmentally friendly production of 5-HMF.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Olivier Henrotte, Eva Yazmin Santiago, Artur Movsesyan, Luca Mascaretti, Morteza Afshar, Alessandro Minguzzi, Alberto Vertova, Zhiming M. Wang, Radek Zboril, Stepan Kment, Alexander O. Govorov, Alberto Naldoni
Summary: The investigation of photocatalytic systems at the nanoscale is crucial for understanding their fundamental principles, improving their design, and enhancing their applicability. A photochemical nanoscopy technique has been developed to detect the molecular products of plasmonic hot-carrier-driven photocatalytic reactions with nanometric precision. Applying this methodology to Au/TiO2 plasmonic photocatalysts, it was discovered that smaller and denser Au nanoparticle arrays have lower optical contribution but higher quantum efficiency in hot-hole-driven photocatalysis, which is closely related to population heterogeneity. This study also revealed the areas of oxidation and reduction product evolution in a single plasmonic nanodiode, demonstrating the bipolar behavior of such nanosystems. These findings enable quantitative investigations at the nanoscale to evaluate the photocatalytic reactivity of low-dimensional materials in various chemical reactions.
Review
Chemistry, Multidisciplinary
Iosif Tantis, Smita Talande, Vasileios Tzitzios, Georgia Basina, Vishal Shrivastav, Aristides Bakandritsos, Radek Zboril
Summary: This review focuses on recent advances in electrochemical energy storage (EES) technologies related to 2D crystals originating from non-layered 3D solids (non-van der Waals; nvdW) and their influence on the materials' features. The methods and challenges in top-down and bottom-up strategies towards nvdW 2D sheets and their applications in EES are discussed. Moreover, the opportunities and challenges of nvdW 2D systems in various applications are highlighted.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Polymer Science
Zohreh Kheilkordi, Ghodsi Mohammadi Ziarani, Fatemeh Mohajer, Alireza Badiei, Rajender S. S. Varma
Summary: A novel magnetic nanocatalyst, Fe3O4@SiO2@Pr-Gu-Cr-COOH, was obtained by functionalizing the nanomagnetic core Fe3O4 with organic and inorganic entities. The catalyst activity of this nanocatalyst was evaluated in the multi-component synthesis of 1-(benzothiazolylamino)methyl-2-naphthols.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Sadegh Azizi, Majid Seifi, Mohammad Taghi Tourchi Moghadam, Mohammad Bagher Askari, Rajender S. Varma
Summary: Investigations on eco-friendly energy storage devices and stable electrode nanomaterials have gained significant attention in recent times. The combination of MnCo2O4 and NiCo2O4 in the form of star morphology on a nickel foam substrate showed promising results in terms of excellent capacitance and stability. The electrochemical properties of the electrodes were evaluated using GCD, CV, and EIS, and the supercapacitor application exhibited satisfactory performance with a high power density and energy density.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Analytical
Atefeh Nasri, Babak Jaleh, Milad Daneshnazar, Rajender S. Varma
Summary: To combat environmental pollution, the development of gas sensor platforms using nanomaterials, such as graphitic carbon nitride (g-C3N4) and gold nanoparticles, has been proposed. The g-C3N4 nanosheets were prepared from urea through a simple heating process and then loaded with gold nanoparticles synthesized by laser ablation. The resulting nanocomposite demonstrated enhanced sensing sensitivity towards organic vapors, especially methanol, making it a promising sensing compound for electronic and electrochemical applications.
Article
Nanoscience & Nanotechnology
Dharmesh J. Shah, Anuj S. Sharma, Vinay S. Sharma, Vinod Kumar Vishwakarma, Achalkumar Ammathnadu Sudhakar, Pranav S. Shrivastav, Rajender S. Varma
Summary: Ferrite nanoparticles (Fe3O4 NPs) supported on microcrystalline cellulose (MCC) were used as an active nanocatalyst for the synthesis of alpha-keto thioglyoxamides via microwave-assisted protocol. The catalyst showed consistent particle size and could be recycled for multiple cycles without significant loss in activity. The environmentally benign approach displayed good green chemistry metrics and was suitable for gram-scale synthesis of thioglyoxamides.
ACS APPLIED NANO MATERIALS
(2023)
Review
Nanoscience & Nanotechnology
Fatemeh Mohajer, Boshra Mirhosseini-Eshkevari, Sepideh Ahmadi, Mohammad Ali Ghasemzadeh, Ghodsi Mohammadi Ziarani, Alireza Badiei, Nima Farshidfar, Rajender S. Varma, Navid Rabiee, Siavash Iravani
Summary: Due to the complex pathophysiology of cancer, traditional cancer treatment strategies face challenges such as low specificity/selectivity, multidrug resistance, and potential side effects/toxicity. Advanced nanosystems with unique properties have been developed for targeted cancer therapy to reduce toxicity and improve targeting properties. However, their clinical translation, therapeutic efficiency, synthesis conditions, and large-scale production still pose challenges. Understanding differences between animal models and humans is necessary for the successful application of nanosystems. Organ-on-a-chip platforms can aid in drug screening, delivery, cancer modeling, and analyzing interactions. Future research should focus on multifunctional nanosystems and smart nanosystems with theranostic capabilities.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Asmita Shah, Vinod Kumar Vishwakarma, Neichoihoi Lhouvum, Achalkumar Ammathnadu Sudhakar, Pawan Kumar, Abhishek Kumar Srivastava, Frederic Dubois, Treerathat Chomchok, Nattaporn Chattham, Dharmendra Pratap Singh
Summary: In this study, a molecular architecture of PQ10-based alternative HTM is presented. The PQ10 compound shows three different phases and exhibits high hole mobility. The charge transport mechanism is mainly through H-aggregates and it can be a good choice for organic electronic and photovoltaic applications.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Organic
Nandish Talpada, Anuj S. Sharma, Vinay S. Sharma, Rajender S. Varma, Pranav S. Shrivastav, Rahul Ahmed, Achalkumar Ammathnadu Sudhakar
Summary: Graphitic carbon nitride (g-C3N4) is used as a heterogeneous catalyst for the visible light-mediated synthesis of imidazo[1,5-a]pyridines at room temperature without any additional solvent. The catalyst can be recycled for multiple cycles without significant loss of activity, making it suitable for gram-scale synthesis of imidazo[1,5-a]pyridines. This environmentally friendly method offers multiple advantages in terms of low environmental impact and high efficiency.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Prashant Kumar, Gurwinder Singh, Xinwei Guan, Jangmee Lee, Rohan Bahadur, Kavitha Ramadass, Pawan Kumar, Md. Golam Kibria, Devthade Vidyasagar, Jiabao Yi, Ajayan Vinu
Summary: Carbon nitride, with its unique molecular structure and various functionalities, is a highly researched catalyst material that plays a crucial role in a wide range of catalytic reactions.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Physical
Reka Zahoran, Pawan Kumar, Dezso Horvath, Agota Toth
Summary: Adding droplets of sodium alginate into calcium chloride solution can create self-propelled hydrogels that exhibit different types of motion depending on the initial concentrations. The dynamics are governed by osmotic pressure induced Marangoni effect.
Article
Optics
Pawan Kumar, Sahana Nagappa Moger, Gowrish K. Rao, M. G. Mahesha
Summary: In this study, three functional heterojunctions based on SnS were fabricated using the low-cost SILAR technique, and detailed analysis was conducted. The experimental results showed that the n-SnO2/p-SnS heterojunction exhibited significant photo response and excellent photodetection figures of merit.
OPTICS AND LASER TECHNOLOGY
(2024)
