Md. Tamez Uddin, M. A. Islam, Shaheen Mahmud, Md. Rukanuzzaman
The potentiality of tea waste for the adsorptive removal of methylene blue, a cationic dye, from aqueous solution was studied. Batch kinetics and isotherm studies were carried out under varying experimental conditions of contact time, initial methylene blue concentration, adsorbent dosage and pH. Th...
Linda C. Roberts, Stephan J. Hug, Thomas Ruettimann, Md Morsaline Billah et al.
Arsenic removal by passive treatment, in which naturally present Fe(II) is oxidized by aeration and the forming iron(III) (hydr)oxides precipitate with adsorbed arsenic, is the simplest conceivable water treatment option. However, competing anions and low iron concentrations often require additional...
Md. Shakhawat Hossen Bhuiyan, Muhammed Yusuf Miah, Shujit Chandra Paul, Tutun Das Aka et al.
bacterial strains. Although the cytotoxic effect of nanoparticles against Hela, BHK-21 and Vero cell line was found to be toxic at maximum doses but it can be considered for tumor cell damage because it showed excellent activity against the Hela and BHK-21 cell lines.
Md. Shad Salman, Md. Chanmiya Sheikh, Md. Munjur Hasan, Md. Nazmul Hasan et al.
Md. Rabiul Awual, Ismail M.M. Rahman, Tsuyoshi Yaita, Md. Abdul Khaleque et al.
Ahmed Shahat, Md. Rabiul Awual, Md. Abdul Khaleque, Md. Zahangir Alam et al.
Assia Benhouria, Md. Azharul Islam, Hassina Zaghouane-Boudiaf, Mokhtar Boutahala et al.
Three adsorbents, namely, bentonite–alginate beads, activated carbon–alginate beads, and activated carbon–bentonite–alginate beads (ABA) were prepared for the adsorption of methylene blue (MB). The effects of solution pH (3–11), temperature (30, 40, and 50 °C), initial concentration (25–500 mg/L), a...
Md. Azharul Islam, Muthanna J. Ahmed, Waheed Ahmad Khanday, Mohammad Asif et al.
Mesoporous activated carbon was prepared using a hydrochar derived from coconut shell waste through hydrothermal carbonization and NaOH chemical activation process (COSHTC). Three sets of activated carbons were obtained with different hydrochar:NaOH impregnation ratios (1:1, 1:2, and 1:3). Among the...
Md. Mahidul Islam Masum, Mst. Mahfuja Siddiqa, Khattak Arif Ali, Yang Zhang et al.
Biogenic synthesis of silver nanoparticles (AgNPs) using plants has become a promising substitute to the conventional chemical synthesis method. In this study, we report low-cost, green synthesis of AgNPs using fresh fruit extract of Phyllanthus emblica. The biosynthesized AgNPs was confirmed and ch...
Md. Munjur Hasan, Khadiza Tul Kubra, Md. Nazmul Hasan, Mrs Eti Awual et al.
Md. Azharul Islam, Muthanna J. Ahmed, Waheed Ahmad Khanday, Mohammad Asif et al.
Hydrothermal carbonization of biomass wastes presents a promising step in the production of cost-effective activated carbon. In the present work, mesoporous activated carbon (HAC) was prepared by the hydrothermal carbonization of rattan furniture wastes followed by NaOH activation. The textural and ...
Md. Chanmiya Sheikh, Md. Munjur Hasan, Md. Nazmul Hasan, Md. Shad Salman et al.
Stephan J. Hug, Laura Canonica, Martin Wegelin, Daniel Gechter et al.
An estimated 30-50 million people in Bangladesh consume groundwater with arsenic contents far above accepted limits. A better understanding of arsenic redox kinetics and simple water treatment procedures are urgently needed. We have studied thermal and photochemical As(III) oxidation in the laborato...
M. Sarwar Jahan, Abrar Saeed, Zhibin He, Yonghao Ni
Yunho Lee, Ik‐Hwan Um, Jeyong Yoon
We investigated the stoichiometry, kinetics, and mechanism of arsenite [As(III)] oxidation by ferrate [Fe(VI)] and performed arsenic removal tests using Fe(VI) as both an oxidant and a coagulant. As(III) was oxidized to As(V) (arsenate) by Fe(VI), with a stoichiometry of 3:2 [As(III):Fe(VI)]. Kineti...