Human hair-derived high surface area porous carbon material for the adsorption isotherm and kinetics of tetracycline antibiotics. (November 2017)

• Record Type: Journal Article
• Authors: Ahmed, M.J.; Islam, Md. Azharul; Asif, M.; Hameed, B.H.
• Is Part Of: Bioresource technology. Volume 243(2017)
• Page Start: 778
• Page End: 784
• Publication Date: 2017-11
• Subjects: Human hair -- Porous carbon -- Antibiotics -- Adsorption -- Kinetics; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2017.06.174
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: KOH-activated carbon was prepared from naturally available human hair. High surface area of 1505.11 m 2 /g and microporosity of 68.34% were obtained. Kinetics and isotherm studies were performed for tetracycline removal. Maximum monolayer adsorption capacity of 210.18 mg/g was achieved at 50 °C. Abstract: In this work, a human hair-derived high surface area porous carbon material (HHC) was prepared using potassium hydroxide activation. The morphology and textural properties of the HHC structure, along with its adsorption performance for tetracycline (TC) antibiotics, were evaluated. HHC showed a high surface area of 1505.11 m 2 /g and 68.34% microporosity. The effects of most important variables, such as initial concentration (25–355 mg/L), solution pH (3–13), and temperatures (30–50 °C), on the HHC adsorption performance were investigated. Isotherm data analysis revealed the favorable application of the Langmuir model, with maximum TC uptakes of 128.52, 162.62, and 210.18 mg/g at 30, 40, and 50 °C, respectively. The experimental data of TC uptakes versus time were analyzed efficiently using a pseudo-first order model. Porous HHC could be an efficient adsorbent for eliminating antibiotic pollutants in wastewater.