Mechanistic insights into the synergetic remediation and amendment effects of zeolite/biochar composite on heavy metal-polluted red soil

Li, Jing; Yang, Dazhong; Zou, Wensong; Feng, Xuezhen; Wang, Ranhao; Zheng, Renji; Luo, Siyuan; Chu, Zheting; Chen, Hong

2024-09-01

10.1007/s11783-024-1874-6

FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING   影响因子和分区

2095-2201

2095-221X

Red soil, the most critical soil resource in tropical/subtropical regions worldwide, faces tremendous threats, including nutrient deficiency, acidification, and heavy metal contamination. There is a great demand for multifunctional eco-materials capable of modifying this situation. Herein, we used widely distributed soil and biomass to develop a zeolite/biochar composite for synergistic red soil remediation and amendment. With the composite material, the Pb2+ and Cd2+ remediation efficiencies reached 92.8% and 92.9%, respectively, in stems under optimal conditions. Moreover, the acidity and nutrient deficiency conditions of red soil significantly improved. The atomic-scale interaction mechanism during the remediation and amendment process was elucidated with complementary characterization methods, which revealed that in the zeolite/biochar composite material, zeolite contributes to long-term heavy metal remediation effects. Simultaneously, biochar is responsible for soil quality amendment and short-term heavy metal remediation. Furthermore, for the first time, single-atom heavy metal ions were observed on biochar during the remediation process, indicating the broad distribution of single atoms in the natural environment.

Red soil Heavy metal pollution Zeolite/biochar composite Soil remediation Soil amendment

SCI ; EI

英语

第一 ; 通讯

National Key Research and Development Program of China[2021YFA1202500] ; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control[2023B1212060002] ; Stable Support Plan Program of Shenzhen Natural Science Foundation[20231122110855002] ; SUSTech and a Special Fund for the Science and Technology Innovation Strategy of Guangdong Province["G03050K001","PDJH2021C0033"]

Engineering ; Environmental Sciences & Ecology

Engineering, Environmental ; Environmental Sciences

WOS:001261417800004

HIGHER EDUCATION PRESS

20242716645206

Atoms ; Composite materials ; Heavy metals ; Metal ions ; Nutrients ; Soil conservation ; Soil pollution ; Soils ; Tropics

Meteorology:443 ; Soils and Soil Mechanics:483.1 ; Metallurgy and Metallography:531 ; Metallurgy:531.1 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3 ; Materials Science:951

Web of Science

Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Guangdong Prov Key Lab Soil & Groundwater Pollut C, Shenzhen 518055, Peoples R China

Li, Jing,Yang, Dazhong,Zou, Wensong,et al. Mechanistic insights into the synergetic remediation and amendment effects of zeolite/biochar composite on heavy metal-polluted red soil[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2024,18(9).

Li, Jing.,Yang, Dazhong.,Zou, Wensong.,Feng, Xuezhen.,Wang, Ranhao.,...&Chen, Hong.(2024).Mechanistic insights into the synergetic remediation and amendment effects of zeolite/biochar composite on heavy metal-polluted red soil.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,18(9).

Li, Jing,et al."Mechanistic insights into the synergetic remediation and amendment effects of zeolite/biochar composite on heavy metal-polluted red soil".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 18.9(2024).