Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite
Samo za registrovane korisnike
2013
Autori
Milićević, Sonja
Milošević, Vladan
Povrenović, Dragan

Stojanović, Jovica

Martinović, Sanja

Babić, Biljana
Članak u časopisu (Objavljena verzija)

Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of Cu2+ and Zn2+ from contaminated water. The surfaces of the naturally occurring zeolite, clinoptilolite, were modified with Fe(III) oxyhydroxides using three different methods, denoted I, II, and III (FeCli(1), FeCli(2), and FeNaCli(1), respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 center dot 6H(2)O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 center dot 6H(2)O solution in 0.1 M KOH (pH = 10); and Method III was the same as Method I except the clinoptilolite was pretreated with NaCl. Newly synthesized materials from these three methods were then tested for their ability to enhance the sorption capacity for Cu and Zn compared to the natural sample (Cli). Powder X-ray diffraction measurements and the chemical composition of... these modified samples confirmed that clinoptilolite maintained its structure while amorphous Fe3+ species were synthesized. The specific surface area (BET method) of both the natural and modified clinoptilolite increased by 2 and 7.5 times for Methods I and II, respectively. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that CaO was formed during Method I (FeCli(1)). Throughout the adsorption process, the hydrolysis of CaO and the release of OH- caused the precipitation of Cu and Zn hydroxide, which made the determination of the sorption capacity of FeCli(1) impossible. This phenomenon was avoided in Method III (FeNaCli(1)) because of the absence of exchangeable Ca2+. The adsorption experiments with Method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments revealed that the sorption capacities increased in the following order: Cli LT FeCli(2) LT FeNaCli(1), for Cu: 0.121 mmol/g LT 0.251 mmol/g LT 0.403 mmol/g and for Zn: 0.128 mmol/g LT 0.234 mmol/g LT 0.381 mmol/g.
Ključne reči:
Zinc / Zeolite / Sorption Capacity / Fe-modification / CopperIzvor:
Clays and Clay Minerals, 2013, 61, 6, 508-516Izdavač:
- Springer, New York
Finansiranje / projekti:
DOI: 10.1346/CCMN.2013.0610603
ISSN: 0009-8604
WoS: 000339789500003
Scopus: 2-s2.0-84902197797
Institucija/grupa
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Milićević, Sonja AU - Milošević, Vladan AU - Povrenović, Dragan AU - Stojanović, Jovica AU - Martinović, Sanja AU - Babić, Biljana PY - 2013 UR - https://ritnms.itnms.ac.rs/handle/123456789/262 AB - The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of Cu2+ and Zn2+ from contaminated water. The surfaces of the naturally occurring zeolite, clinoptilolite, were modified with Fe(III) oxyhydroxides using three different methods, denoted I, II, and III (FeCli(1), FeCli(2), and FeNaCli(1), respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 center dot 6H(2)O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 center dot 6H(2)O solution in 0.1 M KOH (pH = 10); and Method III was the same as Method I except the clinoptilolite was pretreated with NaCl. Newly synthesized materials from these three methods were then tested for their ability to enhance the sorption capacity for Cu and Zn compared to the natural sample (Cli). Powder X-ray diffraction measurements and the chemical composition of these modified samples confirmed that clinoptilolite maintained its structure while amorphous Fe3+ species were synthesized. The specific surface area (BET method) of both the natural and modified clinoptilolite increased by 2 and 7.5 times for Methods I and II, respectively. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that CaO was formed during Method I (FeCli(1)). Throughout the adsorption process, the hydrolysis of CaO and the release of OH- caused the precipitation of Cu and Zn hydroxide, which made the determination of the sorption capacity of FeCli(1) impossible. This phenomenon was avoided in Method III (FeNaCli(1)) because of the absence of exchangeable Ca2+. The adsorption experiments with Method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments revealed that the sorption capacities increased in the following order: Cli LT FeCli(2) LT FeNaCli(1), for Cu: 0.121 mmol/g LT 0.251 mmol/g LT 0.403 mmol/g and for Zn: 0.128 mmol/g LT 0.234 mmol/g LT 0.381 mmol/g. PB - Springer, New York T2 - Clays and Clay Minerals T1 - Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite EP - 516 IS - 6 SP - 508 VL - 61 DO - 10.1346/CCMN.2013.0610603 UR - conv_696 ER -
@article{ author = "Milićević, Sonja and Milošević, Vladan and Povrenović, Dragan and Stojanović, Jovica and Martinović, Sanja and Babić, Biljana", year = "2013", abstract = "The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of Cu2+ and Zn2+ from contaminated water. The surfaces of the naturally occurring zeolite, clinoptilolite, were modified with Fe(III) oxyhydroxides using three different methods, denoted I, II, and III (FeCli(1), FeCli(2), and FeNaCli(1), respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 center dot 6H(2)O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 center dot 6H(2)O solution in 0.1 M KOH (pH = 10); and Method III was the same as Method I except the clinoptilolite was pretreated with NaCl. Newly synthesized materials from these three methods were then tested for their ability to enhance the sorption capacity for Cu and Zn compared to the natural sample (Cli). Powder X-ray diffraction measurements and the chemical composition of these modified samples confirmed that clinoptilolite maintained its structure while amorphous Fe3+ species were synthesized. The specific surface area (BET method) of both the natural and modified clinoptilolite increased by 2 and 7.5 times for Methods I and II, respectively. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that CaO was formed during Method I (FeCli(1)). Throughout the adsorption process, the hydrolysis of CaO and the release of OH- caused the precipitation of Cu and Zn hydroxide, which made the determination of the sorption capacity of FeCli(1) impossible. This phenomenon was avoided in Method III (FeNaCli(1)) because of the absence of exchangeable Ca2+. The adsorption experiments with Method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments revealed that the sorption capacities increased in the following order: Cli LT FeCli(2) LT FeNaCli(1), for Cu: 0.121 mmol/g LT 0.251 mmol/g LT 0.403 mmol/g and for Zn: 0.128 mmol/g LT 0.234 mmol/g LT 0.381 mmol/g.", publisher = "Springer, New York", journal = "Clays and Clay Minerals", title = "Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite", pages = "516-508", number = "6", volume = "61", doi = "10.1346/CCMN.2013.0610603", url = "conv_696" }
Milićević, S., Milošević, V., Povrenović, D., Stojanović, J., Martinović, S.,& Babić, B.. (2013). Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite. in Clays and Clay Minerals Springer, New York., 61(6), 508-516. https://doi.org/10.1346/CCMN.2013.0610603 conv_696
Milićević S, Milošević V, Povrenović D, Stojanović J, Martinović S, Babić B. Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite. in Clays and Clay Minerals. 2013;61(6):508-516. doi:10.1346/CCMN.2013.0610603 conv_696 .
Milićević, Sonja, Milošević, Vladan, Povrenović, Dragan, Stojanović, Jovica, Martinović, Sanja, Babić, Biljana, "Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite" in Clays and Clay Minerals, 61, no. 6 (2013):508-516, https://doi.org/10.1346/CCMN.2013.0610603 ., conv_696 .