Naslov
Starenje mikroplastike polistirena naprednim oksidacijskim procesima
(Aging of polystyrene microplastic by advanced oxidation processes)

Autori
Bule, Kristina ; Ukić, Šime ; Cvetnić, Matija ; Prevarić, Viktorija ; Sigurnjak Bureš, Marija ; Miloloža, Martina ; Kučić Grgić, Dajana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Simpozij studenata doktorskih studija PMF-a PhD Student Symposium 2021 / Barišić, Dajana - Zagreb, 2021, 318-319

ISBN
978-953-6076-90-1

Skup
5. Simpozij studenata doktorskih studija PMF-a = 5th Faculty of Science PhD Student Symposium

Mjesto i datum
Zagreb, Hrvatska, 24.04.2021. - 25.04.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
mikroplastika ; polistiren ; napredni oksidacijski procesi
(microplastics ; polystyrene ; advanced oxidation processes)

Sažetak
Plastic is considered to be all organic polymers synthesized from fossil raw materials such as oil, natural gas and coal. Excellent properties and low cost have made plastic inevitable in everyday life, but due to improper and inadequate disposal, a large amount of plastic material accumulates in the environment. An increasing threat to the living world is posed by plastic particles smaller than 5 mm called microplastics (MP). Plastic is a stable material, but in the environment it is exposed to various conditions that cause decomposition and aging of material (change of physical and chemical properties) [1]. In nature, several factors affect change of the MPs properties. UV light and oxidation are one of them. In this paper, advanced oxidation processes (AOP) are used for treatment of MPs. AOP are oxidation processes in an aqueous medium, where highly reactive radicals are formed under the influence of energy with main purpose of removing or decomposing organic pollutants, in this case MP [2]. Applying this approach aims to gain a better insight into the MPs aging process. The investigation of certain factors that occur in nature, such as light, oxidizing agents, pH-value and exposure time to the aging of polystyrene MP (PS), has been examined. Two types of advanced oxidation processes were investigated: UV / H2O2 and UV / S2O82- according to the Box-Behnken design of experiments for determining the optimal aging conditions of PS. To determine the changes in the properties and surface of PS, various methods of analysis were used such as SEM, FTIR spectrometry and TOC analysis.

Izvorni jezik
Hrvatski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Interdisciplinarne tehničke znanosti

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