Removing tetracycline and Hg(II) with ball-milled magnetic nanobiochar and its potential on polluted irrigation water reclamation

Ronghua Li; Yichen Zhang; Hongxia Deng; Zengqiang Zhang; Jim J Wang; Sabry M Shaheen; Ran Xiao; Jörg Rinklebe; Beidou Xi; Xiaosong He; Juan Du

doi:10.1016/j.jhazmat.2019.121095

Removing tetracycline and Hg(II) with ball-milled magnetic nanobiochar and its potential on polluted irrigation water reclamation

J Hazard Mater. 2020 Feb 15:384:121095. doi: 10.1016/j.jhazmat.2019.121095. Epub 2019 Aug 24.

Authors

Ronghua Li¹, Yichen Zhang¹, Hongxia Deng², Zengqiang Zhang³, Jim J Wang⁴, Sabry M Shaheen⁵, Ran Xiao⁶, Jörg Rinklebe⁷, Beidou Xi⁸, Xiaosong He⁸, Juan Du¹

Affiliations

¹ Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, China.
² College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
³ Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, China. Electronic address: zhangzq58@126.com.
⁴ School of Plant, Environmental and Soil Sciences, Louisiana State University Agricultural Center, 104 Sturgis Hall, Baton Rouge, LA 70803, USA.
⁵ University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, 21589 Jeddah, Saudi Arabia; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516, Kafr El-Sheikh, Egypt. Electronic address: smshaheen2015@gmail.com.
⁶ Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; School of Plant, Environmental and Soil Sciences, Louisiana State University Agricultural Center, 104 Sturgis Hall, Baton Rouge, LA 70803, USA.
⁷ University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, Republic of Korea. Electronic address: rinklebe@uni-wuppertal.de.
⁸ Chinese Research Academy of Environmental Sciences, State Key Lab Environmental Criteria & Risk Assessment, Beijing 100012, China.

PMID: 31732339
DOI: 10.1016/j.jhazmat.2019.121095

Abstract

The feasibility of ball-milled magnetic nanobiochars (BMBCs) derived from wheat straw for adsorptive removal of tetracycline (TC) and Hg(II) from aqueous solution was assessed against that of pristine magnetic biochars (PMBCs). Ball milling conversion of PMBCs into BMBCs greatly improved TC and Hg(II) removal, and ≥ 99% TC and Hg(II) were adsorbed by BMBC prepared at 700 °C (BMBC700) within 12 h. The maximum adsorptive removal capacities of BMBC700 for TC and Hg(II) were 268.3 and 127.4 mg/g, respectively. The amounts of TC and Hg(II) removed by BMBC700 decreased gradually as the ionic strength of the solution increased, but increased as the solution temperature increased from 25 to 45 °C. The further FTIR and XPS analysis confirmed removal of TC was predominately regulated by the combination of electrostatic interactions, hydrogen bonds, and Cπ-Cπ interaction, while, the adsorption of Hg(II) was mainly governed by several mechanisms, including electrostatic attractions, Hg-Cπ bond formation, and surface complexation. Overall, BMBC700 presented great potential for TC and Hg(II) removal from polluted irrigation water and exhibited acceptable recyclability performance as well as magnetic separation advantage in use.

Keywords: Biochar; Hg(II); Nanopartilce; Removal; Tetracycline.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adsorption
Agricultural Irrigation
Charcoal / chemistry*
Iron
Magnetic Phenomena
Mercury / chemistry*
Nanoparticles / chemistry*
Recycling
Temperature
Tetracycline / chemistry*
Triticum
Water Pollutants, Chemical / chemistry*
Water Purification / methods*

Substances

Water Pollutants, Chemical
biochar
Charcoal
Iron
Tetracycline
Mercury