Copper Oxide Nanoparticles as a Novel Adsorbent for Separation of Acrylic Acid from Aqueous Solution: Synthesis, Charact
- PDF / 1,972,607 Bytes
- 15 Pages / 547.087 x 737.008 pts Page_size
- 27 Downloads / 200 Views
Copper Oxide Nanoparticles as a Novel Adsorbent for Separation of Acrylic Acid from Aqueous Solution: Synthesis, Characterization, and Application Nilay Baylan
&
İrem İlalan & İsmail İnci
Received: 10 May 2020 / Accepted: 20 August 2020 # Springer Nature Switzerland AG 2020
Abstract Recently, nanoparticles as adsorbents have received great attention due to their notable properties. In this regard, the acrylic acid adsorption from aqueous medium was examined by utilizing copper oxide (CuO) nanoparticles. In this research, initially, CuO nanoparticles were synthesized using a simple precipitation technique. CuO nanoparticles were characterized by Brunauer-Emmett-Teller (BET), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM) analyzes. CuO nanoparticles synthesized were in nano scale size ranged between 140 and 180 nm. FTIR analysis also confirmed the functional groups of CuO nanoparticles. Lastly, the effects of contact time (30–240 min), concentration of acrylic acid (2–10% w/w), temperature (25–55 °C), and CuO nanoparticle dosage (0.05–0.25 g) on the adsorption of acrylic acid with CuO nanoparticles were examined. The optimum adsorption conditions were obtained as the contact time of 180 min, the concentration of acrylic acid of 10% (w/w), nanoparticle dosage of 0.05 g, and temperature of 25 °C. At these conditions, the maximum adsorption capacity of CuO nanoparticles for acrylic acid was found as 202.67 mg g−1. This result confirmed that the synthesized CuO nanoparticles exhibited good adsorption performance towards to acrylic acid.
N. Baylan (*) : İ. İlalan : İ. İnci Department of Chemical Engineering, Istanbul University-Cerrahpaşa, Avcılar, Istanbul, Turkey e-mail: [email protected]
Keywords Acrylic acid . Copper oxide nanoparticles . Adsorption . Aqueous solution
1 Introduction Acrylic acid is an organic acid represented by the formula CH2 = CH-COOH, also called 2-propenoic acid or vinyl formic acid (De et al. 2018). Acrylic acid is a colorless, transparent liquid with a specific odor and its molecular weight is 72.062 g mol−1 (Aşçı and İncİ 2010). Acrylic acid and its ester, and amide derivatives are basic raw materials for producing of polymeric products. However, they are utilized in many industrial applications, for instance plastic additives, flocculants, sealants, adhesives, polishes, surface coatings, paper production, textile products, detergents, leather, fibers, and super-adsorbent substances (Danner et al. 1998; De et al. 2018; Xiaobo et al. 2006). Acrylic acid is customarily manufactured from petrochemicals or by fractional oxidation of propene. In the one-step method, the performance is about 50–60%, which results in high amounts of waste. A two-step method can be applied by using acrolein at a yield of about 90%. The effective and one-step operations are needed utilizing cheap carbon resources. However, petrochemical carbon resources cannot be renewed and also, their utilizations cause universal CO2 emissions (Straathof et al. 2005). Addition
Data Loading...
