Changyin Zhu

ORCID: 0000-0002-7680-9493
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About
Contact & Profiles
Research Areas
  • Advanced oxidation water treatment
  • Arsenic contamination and mitigation
  • Environmental remediation with nanomaterials
  • Microplastics and Plastic Pollution
  • Effects and risks of endocrine disrupting chemicals
  • Radioactive element chemistry and processing
  • Cloud Data Security Solutions
  • Advanced Photocatalysis Techniques
  • Iron oxide chemistry and applications
  • biodegradable polymer synthesis and properties
  • Water Treatment and Disinfection
  • Marine and coastal ecosystems
  • Recycling and Waste Management Techniques
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Pesticide and Herbicide Environmental Studies
  • Electrochemical Analysis and Applications
  • Adsorption and biosorption for pollutant removal
  • Soil Carbon and Nitrogen Dynamics
  • Soil and Water Nutrient Dynamics
  • Acute Kidney Injury Research
  • Geochemistry and Elemental Analysis
  • Chromium effects and bioremediation
  • Odor and Emission Control Technologies
  • Microbial Community Ecology and Physiology
  • 3D Printing in Biomedical Research

Nanjing University
2019-2024

State Key Laboratory of Pollution Control and Resource Reuse
2019-2024

Nanjing Forestry University
2024

Institute of Soil Science
2014-2020

Chinese Academy of Sciences
2014-2020

University of Chinese Academy of Sciences
2016-2018

Anhui Agricultural University
2014

Persulfate-based in situ chemical oxidation (ISCO) for soil remediation has received great attention recent years. However, the mechanisms of interaction between persulfate (PS) and constituents are not fully understood. In this study, PS decomposition, activation, free radical formation conversion processes 10 different soils were examined. The results showed that organic matter (SOM) was dominant factor affecting decomposition soil, but Fe/Mn-oxides mainly responsible when SOM removed....

10.1021/acs.est.8b04766 article EN Environmental Science & Technology 2018-11-14

Despite that persulfate radical (S2O8•–) is an important species formed from the (PS) activation process, its reactivity toward contaminant degradation has rarely been explored. In this study, we found S2O8•– efficiently degrades hexachloroethane (HCA) under anaerobic conditions, whereas HCA negligible in presence of oxygen. We observed dechlorination products such as pentachloroethane, tetrachloroethylene, and Cl– during degradation, which suggest mainly a reductive process conditions....

10.1021/acs.est.7b06279 article EN Environmental Science & Technology 2018-07-10

Frequent cycles of flooding and drainage in paddy soils lead to the reductive dissolution iron (Fe) minerals reoxidation Fe(II) species, all while generating a robust consistent output reactive oxygen species (ROS). In this study, we present comprehensive assessment temporal spatial variations Fe ROS during flooding-drainage process representative soil. Our laboratory column experiments showed that decrease dissolved O2 concentration led rapid reduction below water-soil interface, aqueous...

10.1021/acs.est.3c04967 article EN Environmental Science & Technology 2023-10-19

Photochemically generated reactive oxygen species (ROS) are widespread on the earth's surface under sunlight irradiation. However, nonphotochemical ROS generation in water (e.g., paddy overlying water) has been largely neglected. This work elucidated drivers of and its spatial distribution undisturbed water, by combining imaging technology with situ monitoring. It was found that H2O2 concentrations formed three waters could reach 0.03–16.9 μM, profiles exhibited heterogeneity. The O2...

10.1021/acs.est.3c10866 article EN Environmental Science & Technology 2024-04-17

Sulfide is one of the most abundant reductants in subsurface environment, while pyrogenic carbon a redox medium that widely exists sulfide environment. Previous studies have found can mediate reductive degradation organic pollutants under anoxic conditions; however, scenario oxic conditions has rarely been reported. In this study, we hydroxyl radicals (•OH) generation from oxidation dark conditions. The accumulated •OH ranged 2.07 to 101.90 μM presence 5 mM Na2S and 100 mg L–1 at pH 7.0...

10.1021/acs.est.1c00946 article EN Environmental Science & Technology 2021-04-05
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