Ke Sun
Beijing Normal University
Environmental chemistryInorganic chemistryChemistryOrganic matterSorption
What is this?
Publications 75
#1Li GaoH-Index: 8
#2Ke SunH-Index: 28
Last. Bo GaoH-Index: 18
view all 4 authors...
Abstract Trivalent chromium has historically been considered as an environmentally benign micronutrient due to its low mobility; however, its kinetic process in soil remains poorly understood. Here, the labile fraction and kinetics of Cr(III) in contaminated soils were explored using diffusive gradients in thin films (DGT) and the DGT-induced fluxes model. In contrast to the low mobility of Cr(III) in soils reported by the classic equilibrium partitioning method, we observed steady resupply from...
#1Yuchan Zhang (Ocean University of China)
#2Xiao Wang (Ocean University of China)H-Index: 4
Last. Fengmin Li (Ocean University of China)H-Index: 15
view all 9 authors...
Abstract Biochar and its by-product, wood vinegar, have attracted extensive attention owing to their great potentials in improving degraded soil, which is a global concern because of the threats to soil productivity and food security. However, the effect of biochar or wood vinegar on blueberry production is unknown. Therefore, a field trial was conducted to investigate the effects of individual and co-application of biochar (BC450) and wood vinegar (WV450) derived from blended wood waste on the ...
2 CitationsSource
#1Lanfang Han (BNU: Beijing Normal University)H-Index: 15
#2Ke Sun (BNU: Beijing Normal University)H-Index: 28
Last. Baoshan Xing (UMass: University of Massachusetts Amherst)H-Index: 87
view all 7 authors...
Abstract Extensive application of biochar to soil exerts a profound effect on organic carbon (OC) in soils. However, the impact of biochar on the content and composition of OC has not been comprehensively summarized. This review provided a detailed examination on the stability of biochar and its effect on the amount, composition and turnover of soil OC, with key limitations and issues recognized. The direct input of labile and stable OC of biochar to soil OC pool, and indirect effects of biochar...
#1Ke SunH-Index: 28
#2Lanfang Han (GDUT: Guangdong University of Technology)H-Index: 1
Last. Baoshan XingH-Index: 87
view all 9 authors...
The benefits and disadvantages of hydrochar incorporation into soil have been heavily researched. However, the effect of hydrochar application on the soil microbial communities and the molecular structure of native soil organic carbon (SOC) has not been thoroughly elucidated. This study conducted an incubation experiment at 25 oC for 135 d using a soil column with 0.5 and 1.5% hydrochar-amended paddy soil to explore the interconnections between changes in soil properties and microbial communitie...
Abstract Information about the effect of biochar on the environmental fate of pesticide thiamethoxam (THI) in soil-vegetable ecosystems is limited. Therefore, the influence of a wood-derived biochar produced at 450 °C (BC450) on the uptake of THI by Chinese chive (Allium tuberosum) and its dissipation in soil was investigated using a 42-day pot experiment. BC450 addition decreased THI uptake and its metabolite clothianidin (CLO) by 22.8% and 37.6%, respectively. However, the half-life of THI in ...
#1Zhou Zhou (BNU: Beijing Normal University)H-Index: 4
#2Xitao Liu (BNU: Beijing Normal University)H-Index: 23
Last. Wei Ouyang (BNU: Beijing Normal University)H-Index: 23
view all 7 authors...
Abstract Sulfate radical-based advanced oxidation processes (AOPs) have been applied in soil remediation to degrade traditional pollutants in situ, such as polychlorinated biphenyls (PCBs), diesel, polycyclic aromatic hydrocarbons (PAHs), and total petroleum hydrocarbons (TPH). Emerging pollutants such as pesticides, pharmaceuticals, and phthalates have gradually entered the treatment list, and removal technology has been optimized from simple persulfate addition to coupling with various activat...
6 CitationsSource
#1Yu Wang (BNU: Beijing Normal University)H-Index: 1
#2Zheyun Zhang (LBNL: Lawrence Berkeley National Laboratory)H-Index: 1
Last. Baoshan Xing (UMass: University of Massachusetts Amherst)H-Index: 87
view all 10 authors...
Abstract The biogeochemical cycles of iron and dissolved organic matter (DOM) are strongly associated, especially at different oxidation sates. However, the role of iron minerals with different oxidation states in DOM preservation has not been clearly characterized at the molecular level. In this study, we employed electrospray ionization coupled with Fourier-transform ion cyclotron resonance mass spectrometry (ESI-FT-ICR-MS) to investigate the molecular fractionation of DOM by adsorption onto f...
#1Lanfang Han (BNU: Beijing Normal University)H-Index: 15
#2Xingjuan Zhao (BNU: Beijing Normal University)
view all 7 authors...
Abstract Biochar has emerged as a useful tool to reduce the bioavailability of heavy metals in contaminated soils. However, limited research has been directed towards determining the effects of pyrolysis conditions and feedstock types of biochar on the bioavailability of heavy metals in biochar-treated soils. This work evaluated the efficacy of plant- and manure-derived hydrochar and pyrochar for alleviating Cd bioavailability in soils using conventional chemical extraction, diffusive gradients ...
#1Haoran Sun (BNU: Beijing Normal University)H-Index: 1
#2Bo GaoH-Index: 18
Last. Ke Sun (BNU: Beijing Normal University)H-Index: 28
view all 5 authors...
Abstract As one of the largest man-made reservoir, the Three Gorges Reservoir (TGR) brings great uncertainty and challenges regarding trace metal (e.g., Cu) remobilization in the sediment. Therefore, in this study, sediment cores were collected from the mainstream of the Yangtze River and its three tributaries in the TGR, with a focus on evaluating the Cu remobilization risk and release dynamics using conventional methods, diffusive gradients in thin films (DGT), and the DGT-induced fluxes in se...
#1Bo GaoH-Index: 18
#2Li GaoH-Index: 8
Last. Ke Sun (BNU: Beijing Normal University)H-Index: 28
view all 6 authors...
Abstract Water quality is among the most important environmental issues related to sustainable development in China, especially to ensure national drinking water safety. Here, we investigated the concentrations of 19 trace elements in major drinking water sources from five major river basins in China: Yangtze River Basin, Yellow River Basin, Huai River Basin, Hai River Basin, and Liao River Basin. Water quality, human health risk, and probabilistic health risk were evaluated using statistical an...
1 CitationsSource