نتایج جستجو برای: mechanochemical processing

تعداد نتایج: 501571  

حسن پور, احمد , عمیقیان, جمشید , مظفری, مرتضی ,

In this work we have prepared nano-sized Bi-YIG powders, using mechanochemical processing. In this process, a part of the activation energy, which is necessary for chemical reactions, is provided by high-energy mills. The as milled powders obtained by this technique need a lower annealing temperature in comparison with those obtained by conventional ceramic technique to become a single phase ga...

Journal: :Crystals 2023

This manuscript reviews the current trends in recovery of Platinum Group Metals (PGMs) from end-of-life autocatalysts and aims recently funded Marie Sklodowska-Curie Project “Chemistry Metals-CHemPGM” towards greening PGMs processes reusing recovered for preparation new catalysts. Together with analysis state art spent through pyrometallurgical hydrometallurgical routes recent reducing their en...

Journal: :Distilat: Jurnal Teknologi Separasi 2023

Rhodamin B merupakan salah satu zat warna dalam limbah cair hasil proses produksi industri tekstil yang dapat berbahaya bagi kesehatan dan menimbulkan pencemaran ketika dibuang ke lingkungan dengan konsentrasi tinggi. Solusi permasalahan tersebut adalah mengurangi menggunakan metode adsorpsi memanfaatkan bio adsorben satunya daun ketapang telah diaktivasi terlebih dahulu cara mechanochemical. M...

Journal: :Molecular Systems Design and Engineering 2023

This review summarizes the unique advantages and opportunities offered by mechanochemical process to generate MOF composites.

2015
Yafeng Ren Jianxin Zhu

A large volume of waste mercury chloride catalyst (HgCl2) is generated by calcium carbide-based polyvinyl chloride production in China, which accounts for 30% of global mercury consumption. However, there are few studies on the leaching behavior and risk control of waste catalyst where mercury is in the form of HgCl2, which is more soluble than metal mercury and poses great threat to human heal...

2017
Michael Y Malca Pierre-Olivier Ferko Tomislav Friščić Audrey Moores

Poly(ethylene glycol) (PEG) is a linear polymer with a wide range of applications in chemical manufacturing, drug development and nanotechnology. PEG derivatives are being increasingly used to covalently modify small molecule and peptide drugs, as well as bioactive nanomaterials in order to improve solubility in biological serum, reduce immunogenicity, and enhance pharmacokinetic profiles. Here...

2016
J.R. Anusha Albin T. Fleming M. Valan Arasu Byung Chul Kim Naif Abdullah Al-Dhabi Kook-Hyun Yu C. Justin Raj

The present work focused on the synthesis of β-chitosan submicron particles (CSPs) from Todarodes pacificus using mechanochemical techniques. The gladius was submitted to a sequence of mechanical and chemical treatments to synthesize β-chitin (CT), which was further deacetylated to form spherical chitosan submicron particles with an average diameter of ⩽100 nm. The surface morphology of β-chiti...

Journal: :Molecules 2016
Qihong Zhang Jingbo Yu Yingyao Wang Weike Su

Flavonoids from Sophora flavescens were selectively extracted by mechanochemical-promoted extraction technology (MPET) after using response surface methodology to determine the optimal extraction parameters. The highest yield of 35.17 mg/g was achieved by grinding the roots with Na₂CO₃ (15%) at 440 rpm/min for 17.0 min and water was used as the sole solvent with a ratio of solvent to solid mate...

Journal: :Chemistry of Heterocyclic Compounds 2016

2014
Marina Nisnevitch Svetlana Lugovskoy Anna Pinkus Faina Nakonechny Yeshayahu Nitzan

Photodynamic antimicrobial chemotherapy is based on the ability of photosensitizers to transfer energy absorbed under illumination to dissolved oxygen or to organic substrates, thus exciting them and producing active free radicals and radical ions. Free and liposome-encapsulated photosensitizers, as well as photosensitizers which are immobilized onto solid supports, are known to effectively era...

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