Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Awual, M. R.; Shenashen, M. A.*; 城 昭典*; 塩飽 秀啓; 矢板 毅
Journal of Industrial and Engineering Chemistry, 20(5), p.2840 - 2847, 2014/09
被引用回数：157 パーセンタイル：97.83(Chemistry, Multidisciplinary)We developed a potentially high performance adsorbent for sustainable treatment of soluble inorganic trace phosphate from water by zirconium(IV) loaded bifunctional fibers. In the presence of common chloride and sulfate, phosphate adsorption was not adversely affected but slightly enhanced due to coion and Donnan invasion mechanism. Trace phosphorus (0.0143 mM) was also removed in presence of relatively high amounts of competing anions at high feed flow rate. In competitive arsenate and phosphate adsorption, this novel adsorbent slightly preferred phosphate to arsenate. The adsorbent is reversible and keeps remaining functionality to further reuse in many cycles.
Awual, M. R.; Hossain, M. A.*; Shenashen, M. A.*; 矢板 毅; 鈴木 伸一; 城 昭典*
Environmental Science and Pollution Research, 20(1), p.421 - 430, 2013/01
被引用回数：177 パーセンタイル：97.45(Environmental Sciences)The weak-base adsorbents clarified that these are selective to arsenic(V) over competing of chloride, nitrate and sulfate anions. The solution pH played an important role in arsenic(V) removal and higher pH can cause lower adsorption capacities. Low concentration level of arsenic(V) also removed by these adsorbents even at high flow rate. Adsorbed arsenic(V) on adsorbents was quantitatively eluted with 1 M HCl acid and regenerated into hydrochloride form simultaneously for next adsorption operation after rinsing with water.
El-Safty, S. A.*; Shenashen, M. A.*; Ismael, M.*; Khairy, M.*; Awual, M. R.
Microporous and Mesoporous Materials, 166, p.195 - 205, 2013/01
被引用回数：136 パーセンタイル：98.1(Chemistry, Applied)Mesoporous aluminasilica sensor was designed for optical Pd(II) and Cu(II) ions detection and removal at specific pH solution. The data revealed that this sensor materials was efficiently remove Pd(II) and Cu(II) at pH3.5 and 7.0, respectively. Moreover, this was reversible and reusable for several cycles withput deterioration in its performances.
El-Safty, S. A.*; Awual, M. R.; Shenashen, M. A.*; Shahat, A.*
Sensors and Actuators B; Chemical, 176, p.1015 - 1025, 2013/01
被引用回数：143 パーセンタイル：98.7(Chemistry, Analytical)The novel nanocollector were developed for potential application in cobalt (Co(II)) detection and extraction from lithium ion batteries (LIBs). The nanocollectors are high surface area and large pore volume which possess the ultra-trace Co(II) detection and removal from LIBs. The nanocollectors were retaining functionality in spite of many chemical treatments during removal-extraction-regeneration cycles. Therefore, large scale pilot studies are recommended in order to confirm the promising results obtained at laboratory scale.
Awual, M. R.; Shenashen, M. A.*; 矢板 毅; 塩飽 秀啓; 城 昭典*
Water Research, 46(17), p.5541 - 5550, 2012/11
被引用回数：216 パーセンタイル：99.02(Engineering, Environmental)This study is an efficient arsenic(V) removal from contaminated waters used as drinking water in adsorption process by zirconium(IV) loaded ligand exchange fibrous adsorbent. The bifunctional fiber was synthesised by graft polymerization of chloromethylstyrene onto polyethylene coated polypropylene fiber by means of electron irradiation technique. The adsorption efficiency of ligand exchange adsorbent was evaluated in several parameters such as competing ions pH, flow rate, and high feed flow rate for removal process of trace concentration arsenic(V).
El-Safty, S. A.*; Shenashen, M. A.*; Ismael, M.*; Khairy, M.*; Awual, M. R.
Analyst, 137(22), p.5278 - 5290, 2012/10
被引用回数：135 パーセンタイル：98.08(Chemistry, Analytical)Optical captor design is necessary for the controlled development of a technique for detecting and removing heavy and toxic metals from drinking water with high flexibility and low capital cost. We designed chemical mesocaptors for optical separation/extraction and monitoring/detection of Cu(II) and Zn(II) ions from water even at trace concentration levels without a preconcentration process. Theoretical models have been developed to provide insights into the effect of active site surfaces on the enhancement of the optical removal process in terms of long-term stability, reversibility, and selectivity, hence allowing us to understand the role of mesoscopic geometry and nanoscale pore orientation of mesocaptors better.
