Review on Methylene Blue: Its Properties, Uses, Toxicity and Photodegradation

Water, Год журнала: 2022, Номер 14(2), С. 242 - 242

Опубликована: Янв. 14, 2022

The unavailability of clean drinking water is one the significant health issues in modern times. Industrial dyes are dominant chemicals that make unfit for drinking. Among these dyes, methylene blue (MB) toxic, carcinogenic, and non-biodegradable can cause a severe threat to human environmental safety. It usually released natural sources, which becomes beings living organisms. Hence, there need develop an environmentally friendly, efficient technology removing MB from wastewater. Photodegradation advanced oxidation process widely used removal. has advantages complete mineralization dye into simple nontoxic species with potential decrease processing cost. This review provides tutorial basis readers working degradation research area. We not only covered basic principles but also provided wide range previously published work on photocatalytic systems (single-component multi-component photocatalysts). Our study focused critical parameters affect photodegradation rate MB, such as photocatalyst type loading, irradiation reaction time, pH media, initial concentration dye, radical scavengers oxidising agents. mechanism, pathways, intermediate products, final products summarized. An overview future perspectives utilize at industrial scale provided. paper identifies strategies development effective systems.

Язык: Английский

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Additive manufacturing of structural materials

Materials Science and Engineering R Reports, Год журнала: 2021, Номер 145, С. 100596 - 100596

Опубликована: Апрель 2, 2021

Additive manufacturing (AM), also known as three-dimensional (3D) printing, has boomed over the last 30 years, and its use accelerated during 5 years. AM is a materials-oriented technology, printing resolution versus scalability/speed trade-off exists among various types of materials, including polymers, metals, ceramics, glasses, composite materials. Four-dimensional (4D) together with versatile transformation systems, drives researchers to achieve utilize high dimensional AM. Multiple perspectives structural materials have been raised illustrated in this review, multi-material (MMa-AM), multi-modulus (MMo-AM), multi-scale (MSc-AM), multi-system (MSy-AM), multi-dimensional (MD-AM), multi-function (MF-AM). The rapid tremendous development methods offers great potential for applications, such aerospace field, biomedical electronic devices, nuclear industry, flexible wearable soft sensors, actuators, robotics, jewelry art decorations, land transportation, underwater porous structures.

Язык: Английский

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Additive manufacturing of metallic lattice structures: Unconstrained design, accurate fabrication, fascinated performances, and challenges

Materials Science and Engineering R Reports, Год журнала: 2021, Номер 146, С. 100648 - 100648

Опубликована: Окт. 1, 2021

Язык: Английский

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Surface Modification of Titanium and Titanium Alloys: Technologies, Developments, and Future Interests

Advanced Engineering Materials, Год журнала: 2019, Номер 22(5)

Опубликована: Дек. 11, 2019

Thanks to a considerable number of fascinating properties, titanium (Ti) and Ti alloys play important roles in variety industrial sectors. However, could not satisfy all requirements; the degradation always commences on their surfaces service, which declines performances workpieces. Therefore, with aim further improve mechanical, corrosion biological surface modification is often required for alloys. This article reviews technologies recent developments surface‐modification methods respect alloys, including physical, chemical, biochemical technologies. Conventional have limited improvement properties and/or restriction geometry many advanced emerged decades. New make better performance extended applications. With requirement high future. Understanding mechanism various methods, combining advantages current developing new coating materials are urgently. As such, incorporation different high‐performance modified layers may be mainstream modifications

Язык: Английский

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Metal-based catalysts for persulfate and peroxymonosulfate activation in heterogeneous ways: A review

Chemical Engineering Journal, Год журнала: 2021, Номер 429, С. 132323 - 132323

Опубликована: Сен. 9, 2021

Язык: Английский

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A Novel Multinary Intermetallic as an Active Electrocatalyst for Hydrogen Evolution

Advanced Materials, Год журнала: 2020, Номер 32(21)

Опубликована: Апрель 8, 2020

Electrochemical water splitting offers an attractive approach for hydrogen production. However, the lack of high-performance cost-effective electrocatalyst severely hinders its applications. Here, a multinary high-entropy intermetallic (HEI) that possesses unusual periodically ordered structure containing multiple non-noble elements is reported, which can serve as highly efficient evolution. This HEI exhibits excellent activities in alkalinity with overpotential 88.2 mV at current density 10 mA cm-2 and Tafel slope 40.1 dec-1 , are comparable to those noble catalysts. Theoretical calculations reveal chemical complexity surprising atomic configurations provide strong synergistic function alter electronic structure. Furthermore, unique L12 -type enables specific site-isolation effect further stabilize H2 O/H* adsorption/desorption, dramatically optimizes energy barrier Such strategy uncovers new paradigm develop novel superior reaction activities.

Язык: Английский

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Efficiently activate peroxymonosulfate by Fe3O4@MoS2 for rapid degradation of sulfonamides

Chemical Engineering Journal, Год журнала: 2021, Номер 422, С. 130126 - 130126

Опубликована: Май 1, 2021

Язык: Английский

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Recent Development in Beta Titanium Alloys for Biomedical Applications

Metals, Год журнала: 2020, Номер 10(9), С. 1139 - 1139

Опубликована: Авг. 24, 2020

β-type titanium (Ti) alloys have attracted a lot of attention as novel biomedical materials in the past decades due to their low elastic moduli and good biocompatibility. This article provides broad extensive review Ti terms alloy design, preparation methods, mechanical properties, corrosion behavior, After briefly introducing development for applications, this reviews design from perspective molybdenum equivalency (Moeq) method DV-Xα molecular orbital method. Based on these considerable number are developed. Although lower compared with other types alloys, they still possess higher than human bones. Therefore, porous declined modulus been developed by some such powder metallurgy, additive manufacture so on. As reviewed, comparable or even better biocompatibility alloys. Hence, more suitable used implant materials. However, there problems biological inertness. such, summarizing findings current literature, suggestions forβ-type bioactive coatings proposed future development.

Язык: Английский

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Nanostructural metallic materials: Structures and mechanical properties

Materials Today, Год журнала: 2020, Номер 38, С. 114 - 135

Опубликована: Май 26, 2020

The trade-off of strength and ductility metals has long plagued materials scientists. To resolve this issue, great efforts have been devoted over the past decades to developing a variety technological pathways for effectively tailoring microstructure metallic materials. Here, we review recent advanced nanostructure design strategies purposely fabricating heterogeneous nanostructures in crystalline non-crystalline Several representative structural approaches are introduced, including (1) hierarchical nanotwinned (HNT) structures, extreme grain refinement dislocation architectures etc. metals; (2) nanoglass structure alloys, i.e. glasses (MGs); (3) series supra-nano-dual-phase (SNDP) composite alloys. mechanical properties further optimized by manipulating these nanostructures, especially coupling multiple into one material. Particularly, newly developed SNDP greatly enrich utilizing supra-nano sized crystals MGs, which exhibit unique size synergistic effects. origins gratifying discussed review. Furthermore, based on comprehensive understanding microscopic mechanisms, broad vision towards high proposed promote future innovations.

Язык: Английский

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Recent progress in high-entropy alloys for catalysts: synthesis, applications, and prospects

Materials Today Energy, Год журнала: 2021, Номер 20, С. 100638 - 100638

Опубликована: Янв. 10, 2021

Язык: Английский

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