Academic Journal
Effect of paddy cultivation on the surface electrochemical properties of different‐sized particles of a Gleysol
| العنوان: | Effect of paddy cultivation on the surface electrochemical properties of different‐sized particles of a Gleysol |
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| المؤلفون: | Hong, Zhineng, Bish, David L., Chang, E, Yu, Yuanchun, Dong, Ying, Zhao, Wenrui, Shi, Renyong, Jiang, Jun, Xu, Renkou |
| المساهمون: | National Key Research and Development Program of China, National Natural Science Foundation of China |
| المصدر: | Journal of Plant Nutrition and Soil Science ; volume 184, issue 4, page 471-478 ; ISSN 1436-8730 1522-2624 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2021 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | Background Limited information is available on the changes in surface electrochemical properties of different‐sized particles of an Anthrosol, compared with the corresponding parental upland soil. Aims Our overarching goal was to clarify the contribution of different‐sized particles to the soil surface charge. The specific objectives of this work were to examine the differences in the surface charge properties between the Anthrosol and its upland parental Gleysol and to reveal the properties of the different‐sized fractions separated from the Anthrosol, compared with those of the upland Gleysol. Materials and methods The properties ( e.g ., negative surface charge, zeta potential, and particle sedimentation) of different‐sized fractions of nanoparticle (NP), coarse colloid, silt, and sand fractions separated from an upland Gleysol and its derived Anthrosol were compared. Results NPs in both the Anthrosol and the Gleysol carried more negative charge than did the coarse colloids, with cation exchange capacities (CEC) being 186.5% and 58.8% greater, respectively. On the other hand, the presence of more positively charged Fe/Al (hydr)oxides compensated for the negative charge, resulted in a zeta potential of the NPs similar to that of the coarse colloids. More secondary minerals were observed in the coarse colloids of the Anthrosol than in the same fraction of the Gleysol, resulting in more negative charge on the surface of the Anthrosol coarse colloids. The coarse colloid fraction of the Anthrosol, therefore, had a greater CEC, despite representing a smaller mass fraction than in the Gleysol. Overall, the CEC of the Anthrosol was 21% lower than that of the parent Gleysol, which was consistent with the findings of the surface charge, using the cesium (Cs + )‐adsorption method. The sedimentation observations demonstrated that the suspension stability of the NPs was higher than that of the coarse colloids, and that they tended to disperse particularly under high pH conditions. Conclusions Although the surface ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/jpln.202100086 |
| الاتاحة: | http://dx.doi.org/10.1002/jpln.202100086 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jpln.202100086 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jpln.202100086 |
| Rights: | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| رقم الانضمام: | edsbas.79C47B6B |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/jpln.202100086 |
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