Effect of raw material functionalization on adsorption capacity for dye removal from aqueous solution

Gökırmak Söğüt E.

th International Eurasian Conference on Biological and Chemical Sciences (EurasianBioChem 2021), Ankara, Turkey, 24 - 26 November 2021, pp.64

  • Publication Type: Conference Paper / Summary Text
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.64
  • Van Yüzüncü Yıl University Affiliated: Yes


The color found in wastewater creates many environmental problems. Color removal from synthetic dyes is a major concern today, as many dyes and their degradation products are toxic and carcinogenic, posing a serious hazard to aquatic organisms. Crystal violet is most widely used for dyeing, biological stains, dermatological agents, veterinary medicine, etc. [1]. The 1 ppb crystal violet dye is said to be toxic and possibly mutagenic to humans and animals. For this reason, it is necessary to carry out appropriate treatments to remove these pollutants from wastewater before they are discharged into the environment [2]. Separation has become very important in environmental engineering and is now recognized worldwide for its versatility. The adsorption method is seen as a simple and effective process widely applied in potable and domestic or industrial wastewater treatment processes. For this reason, many natural materials or industrial by-products can be used directly or after minor pretreatment to remove the CV dye from the simulated solution [3]. In this study, the characterization of diatomite samples, washed with acid and then modified with FeCl2 [4–6], was performed by XRF, XRD, SEM. In addition, the adsorption performances of produced adsorbents against cationic dyes (MB, MG, and CV) were tested. Furthermore, the effects of CV dye adsorbed on the samples better than the aqueous solution, solution pH at constant temperature (298 K), contact time, and initial dye concentration were investigated, followed by interpretation of the adsorption data from the modeling result