Recent advances in green synthesis and modification of inorganic nanomaterials by ionizing and non-ionizing radiation

2020 ◽  
Vol 8 (44) ◽  
pp. 23029-23058
Author(s):  
Kun Guo ◽  
Aliaksandr Baidak ◽  
Zhixin Yu
Keyword(s):  
Ionizing Radiation ◽  
Green Synthesis ◽  
High Efficiency ◽  
Environmental Friendliness ◽  
Recent Advances ◽  
Inorganic Nanomaterials

Radiation holds great potential to energize the synthesis and modification of nanomaterials with high efficiency, simplicity, scalability, and environmental friendliness.

Recent Advances on the Green Synthesis and Antioxidant Activities of Pyrazoles

2015 ◽  
Vol 14 (13) ◽  
pp. 1078-1092 ◽  
Author(s):  
Daiane Dias ◽  
Bruna Pacheco ◽  
Wilson Cunico ◽  
Lucas Pizzuti ◽  
Claudio Pereira
Keyword(s):  
Green Synthesis ◽  
Antioxidant Activities ◽  
Recent Advances

scholarly journals Recent Advances of Photocatalytic Application in Water Treatment: A Review

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1804
Author(s):  
Guangmin Ren ◽  
Hongtao Han ◽  
Yixuan Wang ◽  
Sitong Liu ◽  
Jianyong Zhao ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
High Efficiency ◽  
Low Cost ◽  
Great Promise ◽  
Rapid Progress ◽  
Recent Advances ◽  
Photocatalytic Application ◽  
Oxidation Technology ◽  
Performance Challenges

Photocatalysis holds great promise as an efficient and sustainable oxidation technology for application in wastewater treatment. Rapid progress developing novel materials has propelled photocatalysis to the forefront of sustainable wastewater treatments. This review presents the latest progress on applications of photocatalytic wastewater treatment. Our focus is on strategies for improving performance. Challenges and outlooks in this promising field are also discussed. We hope this review will help researchers design low-cost and high-efficiency photocatalysts for water treatment.

scholarly journals Green synthesis of silver nanoparticles: biomolecule-nanoparticle organizations targeting antimicrobial activity

RSC Advances ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 2673-2702 ◽  
Author(s):  
Anupam Roy ◽  
Onur Bulut ◽  
Sudip Some ◽  
Amit Kumar Mandal ◽  
M. Deniz Yilmaz
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Mode Of Action ◽  
Antimicrobial Agents ◽  
Recent Advances

In this review, we discuss the recent advances in green synthesis of silver nanoparticles, their application as antimicrobial agents and mechanism of antimicrobial mode of action.

Separation of phenols from oils using deep eutectic solvents and ionic liquids

2020 ◽  
Vol 92 (10) ◽  
pp. 1717-1731
Author(s):  
Yucui Hou ◽  
Zhi Feng ◽  
Jaime Ruben Sossa Cuellar ◽  
Weize Wu
Keyword(s):  
Ionic Liquids ◽  
Phenolic Compounds ◽  
High Efficiency ◽  
Deep Eutectic Solvents ◽  
Environmentally Benign ◽  
Organic Chemical ◽  
Environmental Friendliness ◽  
Oil Mixtures ◽  
Organic Chemical Industry

AbstractPhenolic compounds are important basic materials for the organic chemical industry, such as pesticides, medicines and preservatives. Phenolic compounds can be obtained from biomass, coal and petroleum via pyrolysis and liquefaction, but they are mixtures in oil. The traditional methods to separate phenols from oil using alkaline washing are not environmentally benign. To solve the problems, deep eutectic solvents (DESs) and ionic liquids (ILs) have been developed to separate phenols from oil, which shows high efficiency and environmental friendliness. In this article, we summarized the properties of DESs and ILs and the applications of DESs and ILs in the separation of phenols and oil. There are two ways in which DESs and ILs are used in these applications: (1) DESs formed in situ using different hydrogen bonding acceptors including quaternary ammonium salts, zwitterions, imidazoles and amides; (2) DESs and ILs used as extractants. The effect of water on the separation, mass transfer dynamics in the separation process, removal of neutral oil entrained in DESs, phase diagrams of phenol + oil + extractant during extraction, are also discussed. In the last, we analyze general trends for the separation and evaluate the problematic or challenging aspects in the separation of phenols from oil mixtures.

Tube Bending Forming Technologies: Advances and Trends

2019 ◽  
Author(s):  
Li Heng ◽  
Yang He ◽  
Ma Jun
Keyword(s):  
Health Care ◽  
High Performance ◽  
Optimization Design ◽  
High Efficiency ◽  
Complex Structures ◽  
Tube Bending ◽  
Multiple Defects ◽  
Recent Advances ◽  
Key Technologies

Bent tube parts have been widely used, as one kind of key components with enormous quantities and diversities, to satisfy the increasing demands for lightweight and high-performance products in broad industries such as aerospace, marine, automobile, energy, and health care. Tube bending is one of the key technologies used for manufacturing these lightweight products. The recent advances in tube bending are critically reviewed from four fundamental issues in tube bending, viz. characterization of tubular materials, prediction of multiple defects, bending formability, and innovative optimization design. Advantages and limitations of some recently developed innovative bending approaches are reviewed. Finally, considering the urgent requirements of more lightweight and high-performance bent tubes with hard-to-deform materials with complex structures, the development trends and corresponding challenges are thereafter presented for realizing the precision and high-efficiency tube bending.

scholarly journals “Green” Synthesis of Metallic Nanoparticles by Sonoelectrochemical and Sonogalvanic Replacement Methods

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Оrest Kuntyi ◽  
Galyna Zozulya ◽  
Andriy Kytsya
Keyword(s):  
Green Synthesis ◽  
Electrochemical Reduction ◽  
Metallic Nanoparticles ◽  
Bimetallic Nanoparticles ◽  
Galvanic Replacement ◽  
Pulsed Ultrasound ◽  
Environmental Friendliness ◽  
And Shock Waves ◽  
Sonoelectrochemical Synthesis

The main features of the “green” synthesis of metallic nanoparticles (MNPs) by the sonoelectrochemical methods are manufacturability, environmental friendliness, and the possibility of controlling the geometry of the forming particles. The electrochemical reduction technique allows efficiently designing the metal nanoparticles and provides the control of the content of components of bimetallic nanoparticles, as well as minimizing the number of precursors in working solutions. Due to the generation of turbulence, microjets, and shock waves, ultrasound increases mass transfer and formation of radicals in aqueous solutions and, accordingly, accelerates the processes of nucleation and growth of MNPs. Therefore, this hybrid method, which combines electrolysis and ultrasound, has attracted the interest of researchers in the last two decades as one of the most promising techniques. The present work presents a short analysis of the reference literature on sonoelectrochemical synthesis of metallic and bimetallic nanoparticles. The main factors influencing the geometry of nanoparticles and their size distribution are analyzed. The use of pulsed ultrasound and pulsed current supply during sonoelectrochemical synthesis is especially effective in designing MNPs. Emphasis is placed on the role of surfactants in the formation of MNPs and sacrificial anodes in providing the algorithm: “anodic dissolution-electrochemical reduction of metal-nucleation and formation of МNPs.” It is noted that ultrasound allows synthesizing the MNPs and M1M2NPs during the galvanic replacement, and an analogy of the formation of nanoparticles by sonogalvanic replacement and sonoelectrochemical method is shown.

Green synthesis of silver nano particles: Recent advances and applications

2021 ◽  
Vol 34 (1) ◽  
pp. 15-23
Author(s):  
Proloy Sankar Dev Roy ◽  
Neha Sharma ◽  
Khalid Hussain Salaria ◽  
Rashmi Chalotra ◽  
Shubham Kailas Padekar ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Nano Particles ◽  
Recent Advances
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