Rupa Chakraborty, Anupama Asthana, Ajaya Kumar Singh, Bhawana Jain et al.
Environmental pollution, particularly from heavy metal ions in the wastewater, is one of the most serious concerns of the world. In the pursuit of remedial action, various conventional methods such as ion exchange, chemical precipitation, coagulation, membrane separation, reverse osmosis, and adsorp...
Sushma Yadav, Anupama Asthana, Ajaya Kumar Singh, Rupa Chakraborty et al.
In this work, we successfully synthesized novel polymer gel beads based on functionalized iron oxide (Fe3O4), activated charcoal (AC) particles with β-cyclodextrin (CD) and sodium alginate (SA) polymer (Fe3O4/CD/AC/SA), by a simple, reproducible and inexpensive method. These beads proved to be versa...
Sushma Yadav, Anupama Asthana, Rupa Chakraborty, Bhawana Jain et al.
New magnetic iron oxide (Fe3O4)/activated charcoal (AC)/β-cyclodextrin (CD)/sodium alginate (Alg) polymer nanocomposite materials were prepared by direct mixing of the polymer matrix with the nanofillers. The obtained materials were utilized as nano-adsorbents for the elimination of methylene blue (...
Renu Verma, Anupama Asthana, Ajaya Kumar Singh, Surendra Prasad et al.
Rupa Chakraborty, Anupama Asthana, Ajaya Kumar Singh, Sushma Yadav et al.
Modified chicken feathers (MCFs) were used as adsorbents for the removal of Co(II), Cu(II), Fe(II) and Ni(II) heavy metal ions from water by varying pH, adsorbent concentration and time. MCFs were characterized using Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopic (SEM)...
Anupama Asthana, Renu Verma, Ajaya Kumar Singh, Md. Abu Bin Hasan Susan
Anupama Asthana, Renu Verma, Ajaya Kumar Singh, Md. Abu Bin Hasan Susan et al.
Summary Silver nanoparticle entrapped calcium‐alginate beads (AgNP‐CAB) were successfully synthesized as adsorbent for effective removal of Fe(II) ions from aqueous solution. The adsorbent was characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), X‐ray ...
Rupa Chakraborty, Anupama Asthana, Ajaya Kumar Singh, Renu Verma et al.
In the present study, chicken feathers (CFs), obtained from animal waste, were used as bio-adsorbent for the removal of hazardous Cr(VI) ions from aqueous solutions. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX), x-ray ...
Ranjana Dewangan, Ayesha Hashmi, Anupama Asthana, Ajaya Kumar Singh et al.
We report the synthesis of graphene oxide/nickel oxide/β-cyclodextrin (GO/NiO/β-CD) nanocomposite and the efficiency of the nanocomposite in decolourising two different dyes, methylene blue (MB) and methyl violet (MV). GO was prepared by modified Hummer’s method while hydrothermal method was used fo...
Rupa Chakraborty, Anupama Asthana, Ajaya Kumar Singh, Rameshwar Adhikari et al.
Shilpi Agarwal, Yunus Ahmed, Parul Akhtar, Tahmina Akter et al.
Bhawana Jain, Sunita Singh, Anupama Asthana, Ajaya Kumar Singh et al.
Nowadays, lifetime of battery is major area of research. It can be modified by some physical and chemical aging processes. To clearly understand aging process of battery, characterization techniques at microscopic level help for analysis of the materials consumed in a cell and tally the finding with...