Removal of heavy metals from aqueous solutions using natural and Fe(III) oxyhydroxide clinoptilolite
Само за регистроване кориснике
2013
Аутори
Milićević, SonjaMilošević, Vladan
Povrenović, Dragan
Stojanović, Jovica
Martinović, Sanja
Babić, Biljana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 (FeCli1 , FeCli2, and FeNaCli1, respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 · H2O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 · H2O 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 conf...irmed 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 (FeCli1). 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 FeCli1 impossible. This phenomenon was avoided in Method III (FeNaCli1) because of the absence of exchangeable Ca2+. The adsorption experiments with method II resulted in
double-enchanced adsoprtion capacity. Laboratory batch experiments have shown that the sorption capacities increased in the following order: Cli < FeCli2 < FeNaCli1, for Cu: 0.121 mmol/g < 0.251 mmol/g < 0.403 mmol/g and for Zn: 0.128 mmol/g < 0.234 mmol/g < 0.381 mmol/g.
Кључне речи:
Copper / Fe-modification / Sorption Capacity / Zeolite / ZincИзвор:
Clay and Clay Minerals, 2013, 61, 6, 508-Издавач:
- Springer
Финансирање / пројекти:
- Имплементација савременијих техничко-технолошких и еколошких решења у постојећим производним системима Рудника Бакра Бор и Рудника Бакра Мајданпек (RS-MESTD-Technological Development (TD or TR)-33007)
DOI: 10.1346/CCMN.2013.0610603
ISSN: 0009-8604
WoS: 000339789500003
Scopus: 2-s2.0-84902197797
Институција/група
IHTMTY - JOUR AU - Milićević, Sonja AU - Milošević, Vladan AU - Povrenović, Dragan AU - Stojanović, Jovica AU - Martinović, Sanja AU - Babić, Biljana PY - 2013 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6897 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 (FeCli1 , FeCli2, and FeNaCli1, respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 · H2O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 · H2O 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 (FeCli1). 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 FeCli1 impossible. This phenomenon was avoided in Method III (FeNaCli1) because of the absence of exchangeable Ca2+. The adsorption experiments with method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments have shown that the sorption capacities increased in the following order: Cli < FeCli2 < FeNaCli1, for Cu: 0.121 mmol/g < 0.251 mmol/g < 0.403 mmol/g and for Zn: 0.128 mmol/g < 0.234 mmol/g < 0.381 mmol/g. PB - Springer T2 - Clay and Clay Minerals T1 - Removal of heavy metals from aqueous solutions using natural and Fe(III) oxyhydroxide clinoptilolite VL - 61 VL - 517 IS - 6 SP - 508 DO - 10.1346/CCMN.2013.0610603 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 (FeCli1 , FeCli2, and FeNaCli1, respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 · H2O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 · H2O 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 (FeCli1). 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 FeCli1 impossible. This phenomenon was avoided in Method III (FeNaCli1) because of the absence of exchangeable Ca2+. The adsorption experiments with method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments have shown that the sorption capacities increased in the following order: Cli < FeCli2 < FeNaCli1, for Cu: 0.121 mmol/g < 0.251 mmol/g < 0.403 mmol/g and for Zn: 0.128 mmol/g < 0.234 mmol/g < 0.381 mmol/g.", publisher = "Springer", journal = "Clay and Clay Minerals", title = "Removal of heavy metals from aqueous solutions using natural and Fe(III) oxyhydroxide clinoptilolite", volume = "61, 517", number = "6", pages = "508", doi = "10.1346/CCMN.2013.0610603" }
Milićević, S., Milošević, V., Povrenović, D., Stojanović, J., Martinović, S.,& Babić, B.. (2013). Removal of heavy metals from aqueous solutions using natural and Fe(III) oxyhydroxide clinoptilolite. in Clay and Clay Minerals Springer., 61(6), 508. https://doi.org/10.1346/CCMN.2013.0610603
Milićević S, Milošević V, Povrenović D, Stojanović J, Martinović S, Babić B. Removal of heavy metals from aqueous solutions using natural and Fe(III) oxyhydroxide clinoptilolite. in Clay and Clay Minerals. 2013;61(6):508. doi:10.1346/CCMN.2013.0610603 .
Milićević, Sonja, Milošević, Vladan, Povrenović, Dragan, Stojanović, Jovica, Martinović, Sanja, Babić, Biljana, "Removal of heavy metals from aqueous solutions using natural and Fe(III) oxyhydroxide clinoptilolite" in Clay and Clay Minerals, 61, no. 6 (2013):508, https://doi.org/10.1346/CCMN.2013.0610603 . .