Article
Chemistry, Multidisciplinary
Purnesh Chattopadhyay, Maria Camila Ariza-Tarazona, Erika Iveth Cedillo-Gonzalez, Cristina Siligardi, Juliane Simmchen
Summary: Microplastics pose a significant environmental threat, compounded by the lack of efficient removal techniques. Photocatalytic semiconducting nanoparticles show promise in degrading micropollutants, including microplastics. This study presents a novel approach by integrating self-propulsion, phoretic assembly, and photocatalytic oxidation into a single Pac-Man TiO2 micromotor, allowing for active collection and degradation of microplastics. The experiments focus on polystyrene microspheres as model microplastics, correlating degradation with catalytic activity and evaluating timescales for the involved processes.
Article
Physics, Condensed Matter
Furqan Ahmad, Rafaqat Hussain, A. Shah, Shams ur Rahman
Summary: This study investigates the photocatalytic properties of SnO2-CuSe nanocomposites with varying amounts of CuSe. The results show that the sample with 32% CuSe content exhibits the best photocatalytic performance. The fabrication of the samples was confirmed to be successful without any impurities using XRD, Raman spectroscopy, and EDAX analysis.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Chemistry, Physical
Yao Xu, Siyuan Zhou, Wensi Dong, Shuo Ma, Xu Yan, Mengxi Liu, Xiyuan Tong, Fang Fang, Zhuozhe Li, Lianshan Chen
Summary: Hydrothermal synthesis was used to synthesize SnCNx photocatalysts with different SnO2 content. SnCN4 photocatalyst exhibited efficient photocatalytic degradation of pollutants under visible light irradiation. The increased photoactivity can be attributed to the synergistic effect between SnO2 and g-C3N4, leading to enhanced visible light absorption. The interface interaction between the two components promotes effective charge transfer, thereby improving visible light absorption. O-2(-) and OH- were identified as the main reaction species in the degradation process, and the possible mechanism was also discussed.
CATALYSIS COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Thomas Cadenbach, Maria J. Benitez, Sofia Andrade Tirado, Valeria Ochoa-Herrera, Alexis Debut, Karla Vizuete
Summary: BiFeO3 nanomaterials have attracted much interest as effective visible-light photocatalysts for water splitting and organic pollutant degradation due to their narrow band gap energies. The use of GdxBi1-xFeO3@SBA-15 nanocomposites can achieve high removal efficiency of the organic dye Rhodamine B, with the 10 vol% Gd0.05Bi0.95FeO3@SBA-15 sample showing the best performance. The synergistic adsorption enhanced photocatalytic degradation process contributes to the superior efficiencies of the nanocomposites over their parent compounds.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Applied
Mihaela Filip, Gabriela Petcu, Elena M. Anghel, Simona Petrescu, Bogdan Trica, Petre Osiceanu, Nicolae Stanica, Irina Atkinson, Cornel Munteanu, Mihaela Mureseanu, Viorica Parvulescu
Summary: By synthesizing several FeTi-SBA-15 magnetic nanocomposites using different titanium precursors and synthesis methods, the photocatalytic performance in degrading pollutants was studied. The results demonstrated that samples with iron showed higher photocatalytic activity, and there was a synergistic effect between titanium and iron species. Additionally, these samples exhibited good stability over multiple photocatalytic cycles, indicating their potential for wastewater purification.
Article
Materials Science, Multidisciplinary
Wenxiang An, Xueqing Pei, Hongli Zhao, Tengfei Bi, Yuechun Fu, Xiaoming Shen, Huan He
Summary: O-doped porous g-C3N4 (OPCN) photocatalyst was successfully synthesized and showed enhanced photocatalytic degradation performance due to decreased bandgap, enlarged absorption range, increased specific surface area, and improved transfer and separation efficiencies of photogenerated electron-hole pairs.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Ceramics
Xueyuan Wang, Lihong Bao, Jun Wang, Xiaojian Pan, TaNa Bao, Luo Meng Chao, Juming Liu, Zizhong Liu
Summary: In this study, a novel TaB2@TiO2 heterostructure was successfully constructed by a facile sol-gel method. The TaB2@TiO2 heterojunction exhibited suitable work function and B-O bonds at the interface, facilitating the migration of photogenerated carriers. The metallic nanocrystalline TaB2 also increased the specific surface area, leading to improved photocatalytic degradation performance compared to pristine TiO2 and commercial TiO2 (P25).
CERAMICS INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
S. Jain, N. Kumar, S. Sharma, D. Parmar, R. K. Sharma, M. Tahir, K. Kumari, G. Rani
Summary: In this study, binary and ternary nanostructures were prepared and characterized for their photocatalytic activity in the degradation of Rhodamine B. The results showed that Ag@Bi2O3/SnS2 nanocomposite exhibited the highest photocatalytic activity in acidic medium, with Ag (4 wt%)@Bi2O3/SnS2 (2 wt%) showing excellent performance.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Engineering, Electrical & Electronic
Wenjin Yue, Zhen Wang, Jintao Gong, Ziyao Wang, Yuhang Dong
Summary: This study reported the use of tetrapod CdS for the photodegradation of Rhodamine B, successfully synthesizing tetrapod CdS with a wurtzite structure under specific conditions. The photodegradation efficiency was found to be dependent on the morphologies of tetrapod CdS.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Akmal Abbas, Keyan Li, Xinwen Guo, Aimin Wu, Chunshan Song, Hong Yang, Sanam Attique, Aqrab ul Ahmad, Faizan Ali
Summary: A facile polyvinylpyrrolidone (PVP) assisted solvothermal route using mixed solvents was reported to synthesize uniform quaternary chalcogenide Cu2FeSnS4 (CFTS) particles. The addition of PVP played a crucial role in tuning the shape and size of the resulted CFTS particles. Photodegradation experiments showed that CFTS particles had good degradation efficiency towards Rhodamine-B and can be reused in multiple cycles.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Anna Jakiminska, Milosz Pawlicki, Wojciech Macyk
Summary: Understanding the TiO2-assisted phototransformations observed for Rhodamine B derivatives is important for comprehensive knowledge of this dye's behavior. The photocatalytic transformations of Rhodamine B involve N-deethylation, forming Rhodamine-110 instead of chromophore degradation. This research studied the N-deethylation process in solution and solid state, and found that the choice of light wavelength is crucial for controlling the degradation pathway. The process does not require reactive oxygen species, but involves photoinduced electron transfer and radical transformations of the dye.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Engineering, Environmental
Palani Karthik, Siranjeevi Ravichandran, Velusamy Sasikala, Azhagurajan Mukkannan, Jegathalaprathaban Rajesh
Summary: In this study, CA/MnO2 nanocomposites were synthesized using a cost-effective magnetic stirring method. Various characterization techniques were used to evaluate the nanocomposites, and the photocatalytic degradation of rhodamine-B was employed to assess their performance. The results showed a significant decrease in rhodamine-B concentration under UV-visible light, indicating the potential of the CA/MnO2 nanocomposites as efficient visible-light-responsive photocatalysts for water treatment.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Environmental Sciences
Paramasivam Shanmugam, Siwaporn Meejoo Smith, Supakorn Boonyuen, Apanee Luengnaruemitchai
Summary: In this study, versatile boron-doped graphitic carbon nitride (gCN) incorporated mesoporous SBA-15 (BGS) composite materials were prepared using a thermal polycondensation method. These eco-friendly composites showed high photocatalytic activity for the degradation of tetracycline antibiotics under solar light. The addition of mesoporous SBA-15 increased the specific surface area and boron doping enhanced the photocatalytic activity of the g-CN.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
J. Ebrahimian, M. Mohsennia, M. Khayatkashani
Summary: The Ud-SnO2-ZnO heterojunction nanocomposite was synthesized using Urtica dioica leaf extract as a reducing and stabilizing agent. This nanocomposite exhibited higher photocatalytic activity compared to pure SnO2 and ZnO, with efficient degradation of Rhodamine B dye under UV irradiation. Additionally, the band gap energy of USZNC was higher, indicating good photocatalytic performance.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Physical
Lei Li, Yan Du, Houxiang Sun, Huabing Zhang, Zicong Zhong
Summary: This paper reports the successful preparation of efficient CdZnS/SnS2/SnO2 heterojunction by sequential template approach and hydrothermal method. The heterostructure greatly enhances the photocatalytic degradation ability of Rhodamine B (RhB). The CdZnS/SnS2/SnO2 exhibits good stability and reusability, and its superior removal activity is mainly attributed to the formation of heterojunction improved light harvesting and enhanced separation efficiency.
Article
Chemistry, Physical
N. R. Srinivasan, Paulami Majumdar, N. K. R. Eswar, Rajdip Bandyopadhyaya
APPLIED CATALYSIS A-GENERAL
(2015)
Article
Materials Science, Ceramics
M. Kalirajan, R. Ranjeeth, R. Vinothan, S. Manisha Vidyavathy, N. R. Srinivasan
CERAMICS INTERNATIONAL
(2016)
Article
Materials Science, Ceramics
M. S. Chandrasekar, N. R. Srinivasan
CERAMICS INTERNATIONAL
(2016)
Article
Chemistry, Physical
N. R. Srinivasan, Rajdip Bandyopadhyaya
FARADAY DISCUSSIONS
(2016)
Article
Chemistry, Physical
N. R. Srinivasan, Rajdip Bandyopadhyaya
FARADAY DISCUSSIONS
(2016)
Article
Chemistry, Multidisciplinary
Chandrasekar M. Subramaniyam, N. R. Srinivasan, Zhixin Tai, Hua Kun Liu, Shi Xue Dou
Article
Chemistry, Physical
Chandrasekar M. Subramaniyam, N. R. Srinivasan, Zhixin Tai, Hua Kun Liu, John B. Goodenough, Shi Xue Dou
JOURNAL OF MATERIALS CHEMISTRY A
(2017)
Article
Chemistry, Physical
N. R. Srinivasan, P. A. Shankar, Rajdip Bandyopadhyaya
Article
Chemistry, Physical
N. R. Srinivasan, Sagar Mitra, Rajdip Bandyopadhyaya
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2014)
Article
Chemistry, Multidisciplinary
Yogesh Shelke, N. R. Srinivasan, Sumesh P. Thampi, Ethayaraja Mani
Article
Biotechnology & Applied Microbiology
M. Kamaraj, N. R. Srinivasan, Gizachew Assefa, Amare T. Adugna, Muluken Kebede
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2020)
Article
Food Science & Technology
Venkatesa Prabhu Sundramurthy, Baskar Rajoo, Natesan Rajendran Srinivasan, Rajan Kavitha
APPLIED BIOLOGICAL CHEMISTRY
(2020)
Article
Nanoscience & Nanotechnology
Ruchi Bhole, Delicia Gonsalves, Gokulakrishnan Murugesan, Manoj Kumar Narasimhan, N. R. Srinivasan, Niyam Dave, Thivaharan Varadavenkatesan, Ramesh Vinayagam, Muthusamy Govarthanan, Raja Selvaraj
Summary: In this study, a cheap and sustainable method was developed to synthesize magnetite nanoparticles using the extract of marine macroalgae abundant in the Western coastal region of India. The synthesized magnetite nanoparticles exhibited high purity, strong magnetism, and remarkable catalytic efficiency for degrading dyes in industrial wastewater.
APPLIED NANOSCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Chandrasekar M. Subramaniyam, N. R. Srinivasan
Article
Chemistry, Applied
Lulu Wan, Gan Ye, Yuying Chang, Zhaohan Yang, Guangming Shi, Qiuli Zhang, Jin Wang
Summary: This study developed an efficient approach to upgrade the oxidative desulfurization (ODS) performance of Zr-MOFs with proton stimulation. Experimental results showed that the introduction of protons can significantly improve the ODS efficiency. This work provides a facile and efficient strategy for enhancing the ODS performance of pristine MOFs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Qiqi Lu, Xiu-Zhi Wei, Qi Zhang, Xinghua Zhang, Lungang Chen, Jianguo Liu, Yubao Chen, Longlong Ma
Summary: The application of Pd-M bimetallic clusters in the selective hydrogenation reaction was investigated, and the Pd0.6Ni@S-1 catalyst was found to exhibit high selectivity in the conversion of phenylacetylene to styrene. The confinement effect of zeolite inhibited over-hydrogenation and improved the stability of the catalysts. Furthermore, the solvent properties also influenced the product distribution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Applied
Bo Li, Lumin Hong, Changdi Jing, Xianyang Yue, Huabo Huang, Qianqian Jiang, Jianguo Tang
Summary: MOF materials with adjustable pore structure and polymetallic sites have been explored as electrocatalysts for OER. Bimetallic materials show higher electrocatalytic activity than monometallic materials, while carbon-coated and doped MOF catalysts exhibit stable and good OER activity. The synergistic interaction between polymetallic active sites effectively improves the intrinsic activity of MOF on OER.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shichun Gu, Ruyi Wang, Junxiong Zhang, Hairong Dong, Liping Deng, Xue Wang, Yapeng He
Summary: In this study, monodispersed hollow mesoporous organosilica nanospheres with controlled core cavity and mesoporous shell were successfully synthesized. These hollow nanospheres showed a high adsorption capacity for Pb2+ in water solution and exhibited acceptable recycling and stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Lucie Havelkova, Bogdana Bashta, Michaela Vankova, Jiri Zednik, Jiri Brus, Jan Svoboda, Alice Vagenknechtova, Jan Sedlacek
Summary: An atom-economic one-step chain-growth coordination homopolymerization providing high yields of functionalized hyper-cross-linked polyacetylenes with a permanent micro/mesoporous texture and a BET area of up to 1062 m2/g is reported. The homopolymerization is highly compatible with the heteroatom groups of the monomers and allows the preparation of well-defined porous networks with a wide spectrum of univalent groups.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shirui Pang, Yuxin Liu, Zhe Zhang, Yuxin Li, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study focuses on using a functional separator to suppress the shuttle effect of soluble lithium polysulfides in Li-S batteries. It is found that the functionalized sulfonic acid group not only accelerates the conduction of lithium ions, but also repels polysulfide anions through electrostatic interactions. The performance of the batteries is significantly improved with the use of this functionalized separator.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Pingping Li, Lei Han, Donghun Kim, Kemal Celebi
Summary: This study presents a fast synthetic strategy for the preparation of high-quality platelike MFI crystals using a thin-wall tubular reactor. The strategy is efficient, time-saving, and can be optimized, making it applicable to the preparation and optimization of other important materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Haitao Yin, Wei Wang, Yuxin Li, Hu Wen, Shuang Chen, Nanzhe Jiang
Summary: This study presents a template-free and solid-state-like crystallisation method for the synthesis of ZSM-5 zeolite, which can be scaled-up in production. Mechanical mixing of starting material components improves the dispersion of materials, leading to ZSM-5 zeolite with high crystallinity and size uniformity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Congli Li, Jiang Wang, Zhenfei Wang, Jinxiang Dong, Qi Shi
Summary: This study investigates the evolution and autoreduction behavior of Cu species in CuCl/NaY adsorbent during vacuum thermal activation. It is found that Cu species migrate from supercages to the nearby plane of the six-membered ring connecting the supercage and sod cage during vacuum activation. At 150 degrees C, vacuum autoreduction occurs, resulting in the formation of Cu+Cl- species. The results provide reference for the preparation of pi-complex adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Irena Khatrin, Iman Abdullah, Alan J. Mccue, Yuni K. Krisnandi
Summary: Hierarchical porous system with two types of mesopores provides a solution to the diffusion limitation in conventional zeolites. Cobalt oxide impregnated hierarchical ZSM-5 zeolite samples with intra- and inter-crystalline mesopores were synthesized using two different strategies. The physicochemical properties of the modified catalysts were analyzed, revealing distinct features given by the two mesoporous configurations. Catalytic activity analysis showed that Co-oxide/ZSM-5 with inter-crystalline mesopores exhibited higher activity in methane partial oxidation reaction compared to Co-oxide/ZSM-5 with intra-crystalline mesopores.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Nataliia Reinders, Martin Durovic, Pavla Honcova, Zaneta Dohnalova, Jana Luxova, Stanislav Slang, Jhonatan Rodriguez-Pereira, Petra S. Sulcova
Summary: This study presents a new method for preparing a microporous Ni2P/C catalyst with high catalytic activity. The redox reaction and carbon matrix formation during high-temperature treatment contribute to the stability and activity of the catalyst. Experimental and analytical results suggest that the microporous structure of the composite plays a crucial role in its catalytic performance. These findings are important for practical applications of efficient hydrogen production by water electrolysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Naonobu Katada, Nobuki Ozawa, Etsushi Tsuji, Keigo Kanehara, Akiho Otsuka, Taiga Sakamoto, Kirari Umezawa, Hitoshi Matsubara, Satoshi Suganuma, Momoji Kubo
Summary: First principles calculations were used to investigate the pathway for methylation of benzene with methane catalyzed by MFI type zeolite-supported Co species. The strong adsorption of benzene on Co is found to lower the activation energy for methane dissociation and promote the formation of toluene precursor. The activation energy of methane dissociation is also affected by the Al-Al distance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Yuan Liu, An T. Ta, Kyoung Chul Park, Shenyang Hu, Natalia B. Shustova, Simon R. Phillpot
Summary: We use density functional theory to investigate the interactions of cerium, americium, and curium cations with crown ethers. Our results demonstrate that crown ethers can capture cerium, americium, and curium ions, and modifying the crown ether structure by substituting nitrogen atoms for oxygen atoms significantly increases their binding energies with radionuclides.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Zhengwu Peng, Shixing Wang, Yihui Wu, Xiang Liu, Hongliang Liu, Dekun Zhang, Likang Fu
Summary: An efficient adsorbent for recovery of germanium was prepared and characterized in this study. The adsorption behavior of Ge(IV) on the adsorbent was analyzed, and the results showed that it follows pseudo-secondary kinetic model and Langmuir isotherm model. The adsorbent exhibited good anionic anti-interference ability and can still maintain high adsorption efficiency after repeated adsorption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)