Abstract
A highly selective mesoporous composite adsorbent is proposed for simultaneous detection and removal of Cu(II) ions in natural waters. The adsorbent was developed using the synthesized ligand 3-(((5-ethoxybenzenethiol)imino)methyl)-salicylic acid (EBMS) immobilization onto mesoporous silica monoliths. The data clarified the nitrogen donor atom in EBMS ligand made the strong and stable complexation mechanism with Cu(II) ions during detection and removal systems. Therefore, Cu(II) bonding with EBMS to enhance color formation and make the ligand as metal-ligand [Cu(II)-EBMS]n+ complexes. The solid material has spherical cavities to showed the rapid response and transport of Cu(II) to network sites easily with high sorption efficiency without loss of cage cavities. The influence of pH, kinetics parameters, limit of detection, Cu(II) sorption capacity, bond distances between ligand and Cu(II) and the effect of eluent for the stripping of Cu(II) ion from adsorbent over elution efficiency were evaluated. The adsorbent offered a simple procedure in ultra-trace Cu(II) sensing optically without using high tech instruments. The adsorbent offered a simple procedure in ultra-trace Cu(II) sensing optically without using high tech instruments. The data also revealed that the adsorbent exhibited high sorption capacity (182.15mg/g) and extreme high selectivity in high concentration ionic competition. The adsorbent materials has retaining their functionality in terms of Cu(II) detection and recovery after multiple reuse cycles without deterioration in its significant performances. Moreover, the present adsorbent was successfully applied to the determination, removal and elution Cu(II) ions in environmental samples.
| Original language | English |
|---|---|
| Pages (from-to) | 67-76 |
| Number of pages | 10 |
| Journal | Chemical Engineering Journal |
| Volume | 222 |
| DOIs | |
| Publication status | Published - 2013 Apr 5 |
| Externally published | Yes |
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Keywords
- Complexation mechanism
- Cu(II) ions
- Detection and removal
- Mesoporous composite adsorbent
- Reusability
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
- Industrial and Manufacturing Engineering
- Environmental Chemistry
Cite this
Trace copper(II) ions detection and removal from water using novel ligand modified composite adsorbent. / Awual, Md Rabiul; Ismael, Mohamed; Yaita, Tsuyoshi; El-Safty, Sherif A.; Shiwaku, Hideaki; Okamoto, Yoshihiro; Suzuki, Shinichi.
In: Chemical Engineering Journal, Vol. 222, 05.04.2013, p. 67-76.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Trace copper(II) ions detection and removal from water using novel ligand modified composite adsorbent
AU - Awual, Md Rabiul
AU - Ismael, Mohamed
AU - Yaita, Tsuyoshi
AU - El-Safty, Sherif A.
AU - Shiwaku, Hideaki
AU - Okamoto, Yoshihiro
AU - Suzuki, Shinichi
PY - 2013/4/5
Y1 - 2013/4/5
N2 - A highly selective mesoporous composite adsorbent is proposed for simultaneous detection and removal of Cu(II) ions in natural waters. The adsorbent was developed using the synthesized ligand 3-(((5-ethoxybenzenethiol)imino)methyl)-salicylic acid (EBMS) immobilization onto mesoporous silica monoliths. The data clarified the nitrogen donor atom in EBMS ligand made the strong and stable complexation mechanism with Cu(II) ions during detection and removal systems. Therefore, Cu(II) bonding with EBMS to enhance color formation and make the ligand as metal-ligand [Cu(II)-EBMS]n+ complexes. The solid material has spherical cavities to showed the rapid response and transport of Cu(II) to network sites easily with high sorption efficiency without loss of cage cavities. The influence of pH, kinetics parameters, limit of detection, Cu(II) sorption capacity, bond distances between ligand and Cu(II) and the effect of eluent for the stripping of Cu(II) ion from adsorbent over elution efficiency were evaluated. The adsorbent offered a simple procedure in ultra-trace Cu(II) sensing optically without using high tech instruments. The adsorbent offered a simple procedure in ultra-trace Cu(II) sensing optically without using high tech instruments. The data also revealed that the adsorbent exhibited high sorption capacity (182.15mg/g) and extreme high selectivity in high concentration ionic competition. The adsorbent materials has retaining their functionality in terms of Cu(II) detection and recovery after multiple reuse cycles without deterioration in its significant performances. Moreover, the present adsorbent was successfully applied to the determination, removal and elution Cu(II) ions in environmental samples.
AB - A highly selective mesoporous composite adsorbent is proposed for simultaneous detection and removal of Cu(II) ions in natural waters. The adsorbent was developed using the synthesized ligand 3-(((5-ethoxybenzenethiol)imino)methyl)-salicylic acid (EBMS) immobilization onto mesoporous silica monoliths. The data clarified the nitrogen donor atom in EBMS ligand made the strong and stable complexation mechanism with Cu(II) ions during detection and removal systems. Therefore, Cu(II) bonding with EBMS to enhance color formation and make the ligand as metal-ligand [Cu(II)-EBMS]n+ complexes. The solid material has spherical cavities to showed the rapid response and transport of Cu(II) to network sites easily with high sorption efficiency without loss of cage cavities. The influence of pH, kinetics parameters, limit of detection, Cu(II) sorption capacity, bond distances between ligand and Cu(II) and the effect of eluent for the stripping of Cu(II) ion from adsorbent over elution efficiency were evaluated. The adsorbent offered a simple procedure in ultra-trace Cu(II) sensing optically without using high tech instruments. The adsorbent offered a simple procedure in ultra-trace Cu(II) sensing optically without using high tech instruments. The data also revealed that the adsorbent exhibited high sorption capacity (182.15mg/g) and extreme high selectivity in high concentration ionic competition. The adsorbent materials has retaining their functionality in terms of Cu(II) detection and recovery after multiple reuse cycles without deterioration in its significant performances. Moreover, the present adsorbent was successfully applied to the determination, removal and elution Cu(II) ions in environmental samples.
KW - Complexation mechanism
KW - Cu(II) ions
KW - Detection and removal
KW - Mesoporous composite adsorbent
KW - Reusability
UR - http://www.scopus.com/inward/record.url?scp=84875081779&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875081779&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2013.02.042
DO - 10.1016/j.cej.2013.02.042
M3 - Article
AN - SCOPUS:84875081779
VL - 222
SP - 67
EP - 76
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
ER -