Research
| Title： | Enhanced adsorption of tetracycline using modified second pyrolysis oil-based drill cutting ash |
|---|---|
| First author： | Yang, Hang; Ding, Zimao; Zou, Yilingyun; Liu, Yangxiya; Zhang, Yi; Xia, Shibin |
| Journal： | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH |
| Years： | 2022 |
| DOI： | 10.1007/s11356-022-21504-3 |
| Abstract： | In this work, second pyrolysis oil-based drill cutting ash (OBDCA-sp) was modified using NaOH and cetyltrimethylammonium bromide (CTAB), respectively. The modified OBDCA-sp was used as the novel adsorbent for adsorption of tetracycline (TC) in aqueous solutions. The original and modified OBDCA-sp were characterized by SEM, XRD, FTIR, zeta potential analysis, contact angle, and BET. The maximum theoretical adsorption quantity (45 celcius) for TC was calculated as 1.7 mg/g using CTAB-OBDCA-sp as the adsorbent. The adsorption isotherm of TC on OBDCA-sp was fitted well with Freundlich model and the adsorption kinetic was illustrated by pseudo-second-order model. Neutral condition was favorable for the adsorption of TC. The result of regeneration experiment indicated the reusability of OBDCA-sp. The hydrogen bonding was the possible mechanism for TC adsorption. This paper developed the novel surface modification methods of OBDCA-sp and provided an approach for the resource utilization of OBDCA-sp as an environmental functional material. |
