title: Adsorptive removal of chloramphenicol from wastewater by NaOH modified bamboo charcoal.
abstract: This study described the adsorption of chloramphenicol (CAP) in wastewater on the renewable bioresource of bamboo charcoal (BC). Results showed that CAP adsorption on BC (Ln q(e)=1.272 Ln C(e)+1.971) and H(2)SO(4) modified BC (Ln q(e)=1.851 Ln C(e)+0.659) were very slight, and on NaOH modified BC was significantly increased (Ln q(e)=0.344 Ln C(e)+6.490). The adsorbents were characterized by N(2) adsorption-desorption, X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). It is revealed that BC and modified BC had very small surface areas of less than 1 m(2) g(-1), H(2)SO(4) treatment led to minimal variation in surface functional groups, and NaOH treatment increased the percentage of surface graphitic carbon and other oxygen-containing groups. The increased adsorption of CAP on NaOH modified BC was mainly ascribed to the enhancement of the pi-pi interaction between the adsorbent and adsorbate.
authors.affiliation: Environmental Science Research Institute, Huazhong University of Science and Technology, Wuhan, PR China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Fan
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.forename: Songhu
authors.initials: S
authors.lastname: Yuan
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Wu
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.forename: Linling
authors.initials: L
authors.lastname: Wang
mesh_terms: D000327:Adsorption; D031723:Bambusa / Q000187:drug effects*; D001673:Biodegradation, Environmental / Q000187:drug effects; D002606:Charcoal / Q000378:metabolism*; D002701:Chloramphenicol / Q000302:isolation & purification*; D003460:Crystallization; D004602:Elements; D007700:Kinetics; D056951:Photoelectron Spectroscopy; D012972:Sodium Hydroxide / Q000494:pharmacology*; D013499:Surface Properties / Q000187:drug effects; D013696:Temperature; D013997:Time Factors; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification
chemical_list: D004602:Elements; D014874:Water Pollutants, Chemical; D002606:Charcoal; D012972:Sodium Hydroxide; D002701:Chloramphenicol