Biochar was prepared by the hydrothermal carbonization (HTC) of palm leaves, characterized, and utilized as an adsorbent for Malachite Green dye (MG). The Higher Heating Value (HHV) biochar depends on temperature has a maximum value 24.81 MJ/kg. Activation using H2O2 oxidation HTC at 208 °C produced AHTC with improved capacity. optimum pH found to be in range 7–8. Freundlich, Langmuir, Temkin, ...

Dyes plays an important role in our everyday life. From manufacturing plastics, paints, textile and even pills contain traces of dye used. With the ever-increasing demand for with growing world populations, use synthetic dyes has grown linearly. Bioremediation using microorganisms is on rise. The ability to accurately predict rate bioremediation relies upon gathering accurate decolourisation, w...

Malachite green (MG) is a triphenylmethane cationic dye used in aquaculture practice, although it has been banned several countries. The illegal use by fish producers, however, persists due to its effectiveness, and ready cheap supply. To prevent indiscriminate applications, strict control measures with simple analytical approaches are therefore necessary. With this purpose, novel, method apply...

The microscopic dynamics of several monomeric and polymeric glass-forming materials has been investigated by time-resolved fluorescence measurements of doped malachite green molecules in a wide temperature region. For monomers, 1-propanol, propylene glycol, and glycerol, and a polymer without side chains, polybutadiene, the temperature dependence of nonradiative decay time of doped malachite gr...

This paper describes the preparation of nanoarrays composed of silver nanoparticles (AgNPs: 20-50 nm) for use as surface-enhanced Raman scattering (SERS) substrates. The AgNPs were grown on porous anodic aluminum oxide (AAO) templates by electrochemical plating, and the inter-channel gap of AAO channels is between 10 and 20 nm. The size and interparticle gap of silver particles were adjusted in...