High-capacity adsorption of aniline using surface modification of lignocellulose-biomass jute fibers

• Published in: Bioresource technology Vol. 193; pp. 507 - 512
• Main Authors: Gao, Da-Wen, Hu, Qi, Pan, Hongyu, Jiang, Jiping, Wang, Peng
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.10.2015
• Subjects: adsorbents; Adsorption; aniline; Aniline adsorption; Aniline Compounds - chemistry; Benzoates - chemistry; Biomass; Biosorbent; biosorbents; Corchorus - chemistry; desorption; Fourier transform infrared spectroscopy; hydrochloric acid; Hydrogen-Ion Concentration; Isotherms; jute; Jute fiber; Kinetics; Lignin - chemistry; Microwave; microwave treatment; scanning electron microscopy; sorption isotherms; Surface Properties; Temperature; Time Factors; wastewater; Jute fiber; Microwave; Aniline adsorption; Biosorbent; Isotherms
• ISSN: 0960-8524; 1873-2976; 1873-2976
• DOI: 10.1016/j.biortech.2015.06.138

[Display omitted] •The jute fiber was modified as an innovative biosorbent for aniline removal.•The rapid modification was carried out using PMDA in microwave reactor.•Adsorption process fits Langmuir isotherm and pseudo-second-order kinetic model.•Modified jute fiber (MJF) adsorbed aniline up to 169.49mg/g.•Spent MJF can be effectively regenerated by HCl solution. Pyromellitic dianhydride (PMDA) modified jute fiber (MJF) were prepared with microwave treatment to generate a biosorbent for aniline removal. The characterization of the biosorbent was investigated by SEM, BET and FT-IR analysis to discuss the adsorption mechanism. The studies of various factors influencing the adsorption behavior indicated that the optimum dosage for aniline adsorption was 3g/L, the maximum adsorption capacity was observed at pH 7.0 and the adsorption process is spontaneous and endothermic. The aniline adsorption follows the pseudo second order kinetic model and Langmuir isotherm model. Moreover, the biosorbent could be regenerated through the desorption of aniline by using 0.5M HCl solution, and the adsorption capacity after regeneration is even higher than that of virgin MJF. All these results prove MJF is a promising adsorbent for aniline removal in wastewater.