C.A.J. Appelo, M. J. J. Van Der Weiden, Christophe Tournassat, Laurent Charlet
Surface complexation models are commonly used to predict the mobility of trace metals in aquifers. For arsenic in groundwater, surface complexation models cannot be used because the database is incomplete. Both carbonate and ferrous iron are often present at a high concentration in groundwater and w...
Zhaoyan Luo, Yixin Ouyang, Hao Zhang, Meiling Xiao et al.
Abstract Lacking strategies to simultaneously address the intrinsic activity, site density, electrical transport, and stability problems of chalcogels is restricting their application in catalytic hydrogen production. Herein, we resolve these challenges concurrently through chemically activating the...
Mohammad Razaul Karim, Kazuto Hatakeyama, Takeshi Matsui, Hiroshi Takehira et al.
We measured the proton conductivity of bulk graphite oxide (GO'), a graphene oxide/proton hybrid (GO-H), and a graphene oxide (GO) nanosheet for the first time. GO is a well-known electronic insulator, but for proton conduction we observed the reverse trend, as it exhibited superionic conductivity. ...
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...
M. Yousuf A. Mollah, Wenhong Yu, Robert Schennach, David L. Cocke
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...
Habibun Nabi Muhammad Ekramul Mahmud, A. K. Obidul Huq, Rosiyah Yahya
Water pollution caused by heavy metal ions is becoming a serious threat to human and aquatic lives day by day.
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. 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...
Juerg Zobrist, Philip R. Dowdle, James Davis, Ronald S. Oremland
Sulfurospirillum barnesii is capable of anaerobic growth using ferric iron or arsenate as electron acceptors. Cell suspensions of S. barnesii were able to reduce arsenate to arsenite when the former oxyanion was dissolved in solution, or when it was adsorbed onto the surface of ferrihydrite, a commo...
Md. Rabiul Awual, Ismail M.M. Rahman, Tsuyoshi Yaita, Md. Abdul Khaleque et al.
Md. Rabiul Awual, Md. Munjur Hasan, Gaber E. Eldesoky, Md. Abdul Khaleque et al.
Sanxiang Wang, Zhenghui Wang, Xiaotian Cheng, Jun Li et al.
BACKGROUND: Recently, in a cross-sectional study of 201 children in Araihazar, Bangladesh, exposure to arsenic (As) in drinking water has been shown to lower the scores on tests that measure children's intellectual function before and after adjustment for sociodemographic features. OBJECTIVES: We in...
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, Khadiza Tul Kubra, Md. Nazmul Hasan, Mrs Eti Awual et al.