Synthesis of (3-mercaptopropyl)trimethoxysilane-modified ZMS and study of the enhancement of ammonia-nitrogen removal from water
In this work, the mesoporous zeolite molecular sieve (ZMS, SBA-15) was prepared by rice hull ash (RHA) and the surface of ZMS pore was modified by (3-mercaptopropyl) trimethoxysilane (MCPMS) with sulfhydryl (SH) as active group connecting to the SBA-15 pore surface. The capacity of removing ammonia-nitrogen (NH3-N) in water will be increased because of the increasing in adsorption active groups. The micro-structures of SBA-15-SH were characterized by FTIR, SEM, TEM, SAXRD. The diffusion and adsorbed behavior of NH3-N in pores of the modified ZMS was simulate by using a molecular dynamic simulation (MDS) program of the Materials Studio software (MSS) which facilitated study of the effect of this modification on pore structure and adsorption capacity. As results of the experiments, the MCPMS-modified ZMS showed more efficient in removing NH3-N in drinking water than before the modification under the same conditions.
Zeolite molecular sieves (ZMS) polyhedral ologomeric silsesquioxane (POSS) modifier NH3–N removal molecular dynamic simulation
Peng Zhu Lijiang Hu Di Wang Qun Zhang Shengyao Song
Chemistry Department, Harbin Institute of Technology, Box713, Harbin 150001, China Material Science and Engineering College, Northeast Forestry University, 150040 Harbin, China
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
461-467
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）