Journal article

Identifying adsorption sites for Cd(II) and organic dyes on modified straw materials

Wei Liu, Jie Huang, Anthony J Weatherley, Wenjun Zhai, Fuya Liu, Zhiling Ma, Yunhong Jiao, Chao Zhang, Bing Han

JOURNAL OF ENVIRONMENTAL MANAGEMENT | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | Published : 2022

Abstract

Turning agricultural waste into effective remediation materials is a highly promising approach for reducing in-field crop burning and promoting affordable wastewater treatment. This comparative study aims to identify active adsorption sites for methylene blue (MB), crystal violet (CV), and cadmium (Cd) as model pollutants on wheat straw materials modified by a thermal partial-oxidation process. The optimal modification temperature was found to be 160-180 °C for MB and CV adsorption, which is much lower than that of Cd(II) at 220-240 °C. A strong linear correlation exits between total surface group concentrations and Cd(II) uptake, indicating that both acidic and basic functional groups are f..

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Grants

Awarded by Hebei Key Laboratory of Mineral Re-sources and Ecological Environment Monitoring


Awarded by Research Innovation Team of College of Chemistry and Environmental Science of Hebei University


Awarded by National Natural Science Foundation of China


Awarded by Hebei Key RD Program


Awarded by Natural Science Foundation of Hebei province


Awarded by Excellent Going Abroad Experts' Training Program in Hebei Province


Awarded by Advanced Talents Incubation Program of the Hebei University


Funding Acknowledgements

The authors would like to thank Dr. Xiaofei Duan at the Trace Analysis for Chemical, Earth and Environmental Science (TrACEES) platform, the University of Melbourne for technical support. This work was financially supported by the Hebei Key Laboratory of Mineral Re-sources and Ecological Environment Monitoring (HBMREEM202105) , Victoria-Jiangsu Program for Technology and Innovation Research and Development (VIC-JS TECH) project "Development of novel bio-organic fertilisers", Research Innovation Team of College of Chemistry and Environmental Science of Hebei University (hxkytd-py2104) , National Natural Science Foundation of China (22002032,42077369) , Hebei Key R&D Program (20327303D) , Natural Science Foundation of Hebei province (D2019201332,B2019201064) , The Excellent Going Abroad Experts' Training Program in Hebei Province (202001) , and Advanced Talents Incubation Program of the Hebei University (1081/801260201284) .