Md. Rabiul Awual, Majeda Khraisheh, Nabeel H. Alharthi, Monis Luqman et al.
In this study, a ligand was anchored with mesoporous silica, named as nano-composite materials, was applied in the detection and adsorption of cadmium (Cd(II)) ions from wastewater samples. The effects of solution pH, color optimization, limit of detection, contact time, initial concentration, ion s...
Md. Rabiul Awual, Md. Munjur Hasan, Md. Abdul Khaleque, Md. Chanmiya Sheikh
Khadiza Tul Kubra, Md. Shad Salman, Md. Nazmul Hasan
In this study, the toxic cationic dye of methylene blue (MB) was encapsulated by the polymeric natural carbohydrate of turmeric powder (TP) adsorbent. The natural TP adsorbent was characterized to define the functional groups existing for complexation ability to the MB dye molecules. The MB dye adso...
Marzia Sultana, Mahbub Hasan Rownok, Meherunnesa Sabrin, Md. Hafezur Rahaman et al.
Effective and low-cost removal of dye and heavy metals from wastewater still is a great challenge for researchers. Adsorption using activated carbon is widely used in removing these toxic pollutants. Physical, chemical, and biological modifications have been studied for improving activated carbon ad...
Md. Rabiul Awual, Md. Munjur Hasan
The ligand based composite material is an effective material for the removal of diverse contaminants from wastewater. However, the performance of some ligands functionality is limited in many cases due to the functional complexation ability. Therefore, the high immobilization of ligand anchoring by ...
Md. Munjur Hasan, Mohamed A. Shenashen, Md. Nazmul Hasan, Hussein Znad et al.
With increasing the dye contamination scenes reported around the globe, the highly promising materials are needed to clean up the water to safeguard the human health. In this work, we have investigated the naturally available carbohydrate polymeric biodegradable adsorbent of wheat flour (WF) for the...
Md. Rabiul Awual, Md. Munjur Hasan, Aminul Islam, Mohammed M. Rahman et al.
Water containing heavy metal such as lead (Pb(II)) should be removed for supplying the pure water before discharge to water bodies. In this study, the Pb(II) monitoring and removal were evaluated by the ligand anchoring onto the mesoporous silica based conjugate materials. The material characterizat...
Md. Rabiul Awual, Nabeel H. Alharthi, Yoshihiro Okamoto, Mohammad Rezaul Karim et al.
Md. Rabiul Awual, Md. Munjur Hasan, Aminul Islam, Mohammed M. Rahman et al.
In the present study, 4-nitro-1-naphthylamine ligand functionalized porous conjugate material was prepared for efficient nitrite (NO2−) monitoring and removal from water samples. The proposed material was formed optical color upon addition of trace amount of NO2− at experimental conditions. Several ...
Md. Rabiul Awual, Md. Munjur Hasan, Mohammed M. Rahman, Abdullah M. Asiri
The mesoporous composite material (MeCM) was fabricated using functional organic ligand of 2-methyl-8-quinolinol immobilization onto the porous silica by direct conjugation and employed as an effective material for the detection and removal of copper (Cu(II)) ion from aqueous media. The material cha...
Md. Rabiul Awual, Nabeel H. Alharthi, Md. Munjur Hasan, Mohammad Rezaul Karim et al.
Md. Rabiul Awual, Md. Nazmul Hasan, Md. Munjur Hasan, Md. Shad Salman et al.
The hybrid donor chemical ligand of 5-tert-butyl-2-hydroxybenzaldehyde thiosemicarbazone (THTB) was prepared and then embedded onto inorganic porous silica as hybrid conjugate materials (HCM). The Europium (Eu(III)) ion was selected from the lanthanides (Ln(III)) series for green and robust adsorpti...
Hasan Md. Munjur, Md. Nazmul Hasan, Md. Rabiul Awual, Md. Mominul Islam et al.
The toxic anionic dye of methyl orange encapsulation was studied using biodegradable natural carbohydrate polymeric adsorbents of rice flour (RF) and graham flour (GF). The adsorbents were characterized by several instrumentations to understand the functionality and potential use. The dye adsorption...
Md. Nazmul Hasan, Md. Shad Salman, Md. Munjur Hasan, Khadiza Tul Kubra et al.
Md. Rabiul Awual, Md. Munjur Hasan, Jibran Iqbal, Aminul Islam et al.
Detection and removal of toxic metal ions from aqueous solutions is considered among the most important environmental issues in recent years as these metals are hazardous, carcinogenic, and classified as toxic pollutants. In this study, organic ligand embedded large-pore facile composite material wa...