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Name: Jianxi ZHU (朱建喜)
Position: Research Professor
Department: Key Laboratory of Mineralogy and Metallogeny
Email: zhujx@gig.ac.cn

Research

Clay minerals are extensively distributed on the earth surface. I concentrate on the interactions between clay minerals and environmental contamination, particularly the relationship between the microstructure of clay minerals and sorption mechanisms of contamination onto the modified clay minerals. By the aid of spectroscopy method and modeling simulation, the sorption processes at a molecular level can be revealed.

I am particularly interested in the interdisciplinary research of clay mineralogy, environmental chemistry and computer chemistry, and the results will bring us new view in the research of the environment- clay mineral system, especially the interface reaction between clay mineral, water and organic contamination.

Current projects include the compare study on the microstructure of organoclays under dry and wet states, as well as developing novel in-situ characterization technologies for clay minerals in water. 
 

Research:

Recent Publications:
1.Zhu, J. X.; Wang, T.; Zhu, R. L.; Ge, F.; Yuan, P.; He, H. P., Expansion characteristics of organo montmorillonites during the intercalation, aging, drying and rehydration processes: Effect of surfactant/CEC ratio. Colloids and Surfaces a-Physicochemical and Engineering Aspects 2011, 384, (1-3), 401-407.
2. Zhu, J. X.; Wang, T.; Zhu, R. L.; Ge, F.; Wei, J. M.; Yuan, P.; He, H. P., Novel polymer/surfactant modified montmorillonite hybrids and the implications for the treatment of hydrophobic organic compounds in wastewaters. Applied Clay Science 2011, 51, (3), 317-322.
3. Zhu, J. X.; Qing, Y. H.; Wang, T.; Zhu, R. L.; Wei, J. M.; Tao, Q.; Yuan, P.; He, H. P., Preparation and characterization of zwitterionic surfactant-modified montmorillonites. Journal of Colloid and Interface Science 2011, 360, (2), 386-392.
4. Zhu, J. X.; Shen, W.; Ma, Y. H.; Ma, L. Y.; Zhou, Q.; Yuan, P.; Liu, D.; He H. P., The influence of alkyl chain length on surfactant distribution within organo-montmorillonites and their thermal stability. Journal of Thermal Analysis and Calorimetry 2011, DOI 10.1007/s10973-011-1761-9.
5. Zhou, Q.; Lu, X. C.; Liu, X. D.; Zhang, L. H.; He, H. P.; Zhu, J. X.; Yuan, P., Hydration of methane intercalated in Na-smectites with distinct layer charge: Insights from molecular simulations. Journal of Colloid and Interface Science 2011, 355, (1), 237-242.
6. Tao, Q.; Zhu, J. X.; Wellard, R. M.; Bostrom, T. E.; Frost, R. L.; Yuan, P.; He, H. P., Silylation of layered double hydroxides via an induced hydrolysis method. Journal of Materials Chemistry 2011, 21, (29), 10711-10719.
7. Sun, H. L.; Zhu, L. Z.; Zhu, J. X., Correlation of Structure and Sorption Behavior of Modified Bentonite. Chemical Journal of Chinese Universities-Chinese 2011, 32, (8), 1825-1831.
8. Zhu, R. L.; Wang, T.; Zhu, J. X.; Ge, F.; Yuan, P.; He, H. P., Structural and sorptive characteristics of the cetyltrimethylammonium and polyacrylamide modified bentonite. Chemical Engineering Journal 2010, 160, (1), 220-225.
9. Zhu, J. X.; Wei, J. M.; Zhu, R. L.; Qing, Y. H.; Ge, F.; Yuan, P.; He, H. P., Simultaneous and sequential adsorption of crystal violet and 2-naphthol onto montmorillonite: a microstructural and thermodynamic study. Water Science and Technology 2010, 62, (8), 1767-1774.
10. Yuan, P.; Liu, D.; Fan, M. D.; Yang, D.; Zhu, R. L.; Ge, F.; Zhu, J. X.; He, H. P., Removal of hexavalent chromium [Cr(VI)] from aqueous solutions by the diatomite-supported/unsupported magnetite nanoparticles. Journal of Hazardous Materials 2010, 173, (1-3), 614-621.
11. Wang, T.; Zhu, J. X.; Zhu, R. L.; Ge, F.; Yuan, P.; He, H. P., Enhancing the sorption capacity of CTMA-bentonite by simultaneous intercalation of cationic polyacrylamide. Journal of Hazardous Materials 2010, 178, (1-3), 1078-1084.
12. Tao, Q.; Zhu, J. X.; Frost, R. L.; Bostrom, T. E.; Wellard, R. M.; Wei, J. M.; Yuan, P.; He, H. P., Silylation of Layered Double Hydroxides via a Calcination-Rehydration Route. Langmuir 2010, 26, (4), 2769-2773.
13. Tao, Q.; He, H. P.; Frost, R. L.; Yuan, P.; Zhu, J. X., Thermal decomposition of silylated layered double hydroxides. Journal of Thermal Analysis and Calorimetry 2010, 101, (1), 153-159.
14. Qin, Z. H.; Yuan, P.; Zhu, J. X.; He, H. P.; Liu, D.; Yang, S. Q., Influences of thermal pretreatment temperature and solvent on the organosilane modification of Al-13-intercalated/Al-pillared montmorillonite. Applied Clay Science 2010, 50, (4), 546-553.
15. Ma, Y. H.; Zhu, J. X.; He, H. P.; Yuan, P.; Shen, W.; Liu, D., Infrared investigation of organo-montmorillonites prepared from different surfactants. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 2010, 76, (2), 122-129.
16. Liu, D.; Yuan, P.; Tan, D. Y.; Liu, H. M.; Fan, M. D.; Yuan, A. H.; Zhu, J. X.; He, H. P., Effects of Inherent/Enhanced Solid Acidity and Morphology of Diatomite Templates on the Synthesis and Porosity of Hierarchically Porous Carbon. Langmuir 2010, 26, (24), 18624-18627.
17. Liang, X. L.; Zhu, S. Y.; Zhong, Y. H.; Zhu, J. X.; Yuan, P.; He, H. P.; Zhang, J., The remarkable effect of vanadium doping on the adsorption and catalytic activity of magnetite in the decolorization of methylene blue. Applied Catalysis B-Environmental 2010, 97, (1-2), 151-159.
18. Liang, X. L.; Zhong, Y. H.; Zhu, S. Y.; Zhu, J. X.; Yuan, P.; He, H. P.; Zhang, J., The decolorization of Acid Orange II in non-homogeneous Fenton reaction catalyzed by natural vanadium-titanium magnetite. Journal of Hazardous Materials 2010, 181, (1-3), 112-120.
19. He, H. P.; Ma, Y. H.; Zhu, J. X.; Yuan, P.; Qing, Y. H., Organoclays prepared from montmorillonites with different cation exchange capacity and surfactant configuration. Applied Clay Science 2010, 48, (1-2), 67-72.
20. Fan, M. D.; Yuan, P.; Chen, T. H.; He, H. P.; Yuan, A. H.; Chen, K. M.; Zhu, J. X.; Liu, D., Synthesis, characterization and size control of zerovalent iron nanoparticles anchored on montmorillonite. Chinese Science Bulletin 2010, 55, (11), 1092-1099.
21. Zhu, R. L.; Zhu, L. Z.; Zhu, J. X.; Ge, F.; Wang, T., Sorption of naphthalene and phosphate to the CTMAB-Al-13 intercalated bentonites. Journal of Hazardous Materials 2009, 168, (2-3), 1590-1594.
22. Zhu, R. L.; Zhu, J. X.; Ge, F.; Yuan, P., Regeneration of spent organoclays after the sorption of organic pollutants: A review. Journal of Environmental Management 2009, 90, (11), 3212-3216.
23. Zhu, J. X.; Zhu, L. Z.; Zhu, R. L.; Tian, S. L.; Li, J. W., Surface microtopography of surfactant modified montmorillonite. Applied Clay Science 2009, 45, (1-2), 70-75.
24. Wei, J. M.; Zhu, R. L.; Zhu, J. X.; Ge, F.; Yuan, P.; He, H. P.; Ming, C., Simultaneous sorption of crystal violet and 2-naphthol to bentonite with different CECs. Journal of Hazardous Materials 2009, 166, (1), 195-199.
25. Tao, Q.; Yuan, J.; Frost, R. L.; He, H.; Yuan, P.; Zhu, J. X., Effect of surfactant concentration on the stacking modes of organo-silylated layered double hydroxides. Applied Clay Science 2009, 45, (4), 262-269.
26. Tao, Q.; He, H. P.; Frost, R. L.; Yuan, P.; Zhu, J. X., Nanomaterials based upon silylated layered double hydroxides. Applied Surface Science 2009, 255, (7), 4334-4340.
27. Shen, W.; He, H. P.; Zhu, J. X.; Yuan, P.; Ma, Y. H.; Liang, X. L., Preparation and characterization of 3-aminopropyltriethoxysilane grafted montmorillonite and acid-activated montmorillonite. Chinese Science Bulletin 2009, 54, (2), 265-271.
28. Fan, M. D.; Yuan, P.; Zhu, J. X.; Chen, T. H.; Yuan, A. H.; He, H. P.; Chen, K. M.; Liu, D., Core-shell structured iron nanoparticles well dispersed on montmorillonite. Journal of Magnetism and Magnetic Materials 2009, 321, (20), 3515-3519.
29. Zhu, R. L.; Zhu, L. Z.; Zhu, J. X.; Xu, L. H., Structure of cetyltrimethylammonium intercalated hydrobiotite. Applied Clay Science 2008, 42, (1-2), 224-231.
30. Zhu, R. L.; Zhu, L. Z.; Zhu, J. X.; Xu, L. H., Structure of surfactant-clay complexes and their sorptive characteristics toward HOCs. Separation and Purification Technology 2008, 63, (1), 156-162.
31. Zhu, J. X.; Zhu, L. Z.; Zhu, R. L.; Chen, B. L., Microstructure of organo-bentonites in water and the effect of steric hindrance on the uptake of organic compounds. Clays and Clay Minerals 2008, 56, (2), 144-154.
32. Zhu, J. X.; Yuan, P.; He, H. P.; Frost, R.; Tao, Q.; Shen, W.; Bostrom, T., In situ synthesis of surfactant/silane-modified hydrotalcites. Journal of Colloid and Interface Science 2008, 319, (2), 498-504.
33. Zhou, Q.; He, H. P.; Zhu, J. X.; Shen, W.; Frost, R. L.; Yuan, P., Mechanism of p-nitrophenol adsorption from aqueous solution by HDTMA+-pillared montmorillonite - Implications for water purification. Journal of Hazardous Materials 2008, 154, (1-3), 1025-1032.
34. Yuan, P.; Annabi-Bergaya, F.; Tao, Q.; Fan, M. D.; Liu, Z. W.; Zhu, J. X.; He, H. P.; Chen, T. H., A combined study by XRD, MR, TG and HRTEM on the structure of delaminated Fe-intercalated/pillared clay. Journal of Colloid and Interface Science 2008, 324, (1-2), 142-149.
35. Tao, Q.; Reddy, B. J.; He, H. P.; Frost, R. L.; Yuan, P.; Zhu, J. X., Synthesis and infrared spectroscopic characterization of selected layered double hydroxides containing divalent Ni and Co. Materials Chemistry and Physics 2008, 112, (3), 869-875.
36. Chen, D.; Zhu, J. X.; Yuan, P.; Yang, S. J.; Chen, T. H.; He, H. P., Preparation and characterization of anion-cation surfactants modified montmorillonite. Journal of Thermal Analysis and Calorimetry 2008, 94, (3), 841-848.