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Wipada Moonkambil. Synthesis and characterization of titanosilicate compounds for Pb(II) removal. Master's Degree(Engineering Technology). Thammasat University. Thammasat University Library. : Thammasat University, 2015.
Synthesis and characterization of titanosilicate compounds for Pb(II) removal
Name: Wipada Moonkambil
keyword:
Titanosilicate
;
Lead
;
Sewage
Abstract:
Lead (Pb) is considered a highly toxic element to both human and environment. In this study, titanosilicate (TSi) compounds were synthesized and tested for removal of lead (Pb). The TSi sorbent was synthesized using sol-gel synthesis of titanium (IV)-isopropoxide (TiPO) and tetraethylorthosilicate (TEOS) mixed together with sodium hydroxide at various conditions. The adsorbents were characterized for their morphology and phases using scanning electron microscope (SEM), X-ray diffractometer (XRD), and Fourier transform infrared spectrometer (FTIR). The maximum Pb(II) adsorption capacities of the sorbents obtained are very high and in the range of 400-470 mg Pb /g sorbent. By analyzing the ratio of the released sodium ion from the sorbent to the ratio of the adsorbed Pb(II), the Pb(II) removal mechanisms are inferred to be mainly the ion-exchange. X-ray diffraction patterns show that synthesized sorbents have phases which varied from the amorphous to the crystalline states depending on synthesis condition. The sorbent in the amorphous state which prepared by the sol-gel synthesis followed by stirring at room temperature for 1h has the highest adsorption capacity. Further increase in hydrothermal time resulted in sorbent with crystalline structure, however, the sorption performance was reduced. The titanosilicate sorbents can be regenerated five times with the absorption capacity decreases 20-50%
Thammasat University. Thammasat University Library
Address:
BANGKOK
Email:
preserv@tu.ac.th
Name: Paiboon Sreearunothai
Role:
advisor
Name: Jitapa Sumranjit
Role:
co-advisor
Created:
2015
Modified:
2021-10-04
Issued:
2021-10-04
วิทยานิพนธ์/Thesis
application/pdf
eng
DegreeName: Master of Engineering
Level: Master's Degree
Descipline: Engineering Technology
Grantor: Thammasat University
©copyrights Thammasat University
RightsAccess:
ใช้เวลา
0.033202 วินาที
Wipada Moonkambil
| Title | Contributor | Type |
|---|---|---|
| Synthesis and characterization of titanosilicate compounds for Pb(II) removal
มหาวิทยาลัยธรรมศาสตร์ Wipada Moonkambil | Paiboon Sreearunothai Jitapa Sumranjit | วิทยานิพนธ์/Thesis |
Paiboon Sreearunothai
Jitapa Sumranjit
| Title | Creator | Type and Date Create |
|---|---|---|
| Heterogeneous copper and palladium catalysts for cross-coupling reactions
มหาวิทยาลัยอุบลราชธานี Jitapa Sumranjit | Duangruthai Phithak | วิทยานิพนธ์/Thesis |
| Synthesis and characterization of titanosilicate compounds for Pb(II) removal
มหาวิทยาลัยธรรมศาสตร์ Paiboon Sreearunothai;Jitapa Sumranjit | Wipada Moonkambil | วิทยานิพนธ์/Thesis |