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Blast furnace sludge-BFS is a by-product and waste material of the iron and steel industry. Recently, the adsorption capabilities of blast furnace sludge have been attracting great interest. It is known that materials with modified surface properties can be obtained by different chemical and thermal treatments. The aim of this work was to investigate the influence of chemical treatment by acetic acid and thermal treatment by heating at 700 °C, on the surface properties of blast furnace sludge. Chemical treatment was performed by acetic acid adsorption on BFS. Microscopic observation was conducted using scanning electron microscopy (SEM method). Changes in examined surface area properties were analyzed by Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH) methods. Increasing of specific surface area, decreasing of pore size and better pore size distribution in BFS samples were registered after the applied experimental procedure. The obtained results revealed that the performed chemical and heat treatment presented the activation of blast furnace sludge. Različitim postupcima kemijske i toplinske obrade mogu se dobiti materijali poboljšanih površinskih svojstava. Visokopećni mulj - VPM je nusproizvod i otpadni materijal industrije željeza i čelika, čije su adsorpcijske sposobnosti u posljednje vrijeme sve zanimljivije. Cilj ovog rada je ispitivanje utjecaja kemijske i toplinske obrade na površinska svojstva VPM. Kemijska obrada je provedena octenom kiselinom, a toplinska zagrijavanjem visokopećnog mulja na 700 °C. Mikroskopska ispitivanja provedena su pretražnom elektronskom mikroskopijom (SEM). Promjene ispitanih površinskih svojstava analizirane su metodama Brunauer-Emmett-Teller (BET) i Barrett-Joyner-Halenda (BJH). Povećanje specifične površine, smanjenje veličine pora i bolja raspodjela pora VPM-a registrirani su nakon provedenih ispitivanja. Dobiveni rezultati pokazali su da provedena kemijska i toplinska obrada predstavljaju aktivaciju visokopećnog mulja.

Bone tissue engineering (BTE) is a fast growing field focused on the development of bioactive 3D porous scaffolds as temporary extracellular matrixes that support cell attachment, proliferation and differentiation, and stimulate bone tissue formation in vivo. Over more than ten years, our group has been devoted to developing new biomaterials and methods to prepare 3D porous scaffolds for BTE applications. The potential of natural porous structures such as marine skeletons, composite materials, and hydrogels based on biodegradable polymers and bioresorbable hydroxyapatite ceramics have been studied. In this paper, an overview of our research and main achievements, published in international scientific publications, is provided. This work is licensed under a Creative Commons Attribution 4.0 International License. Inženjerstvo koštanog tkiva brzorastuće je polje istraživanja usmjereno na razvoj bioaktivnih 3D poroznih nosača, kao privremenih izvanstaničnih matrica, koji podržavaju prianjanje, umnažanje i diferencijaciju stanica te potiču stvaranje koštanog tkiva in vivo. Više od deset godina istraživanja naše grupe posvećena su razvoju novih materijala i postupaka za pripravu 3D poroznih nosača za inženjerstvo koštanog tkiva. Kao mogući nosači istraživani su porozni skeleti morskih organizama te kompozitni materijali i hidrogelovi na temelju biorazgradljivih polimera i bioresorbirajuće hidroksiapatitne keramike. U ovom radu dan je prikaz naših istraživanja i glavnih postignuća, objavljenih u međunarodnim znanstvenim publikacijama. Ovo djelo je dano na korištenje pod licencom Creative Commons Imenovanje 4.0 međunarodna.