微波法制备磷酸锆的研究  

Preparation and Characterization of Zirconium Phosphate by Microwave-assisted Method

作　　者：李新玲[1] 胡晓霞[1] 李戎[2] 沈丽[1] 邢彦军[1] 

机构地区：[1]生态纺织教育部重点实验室(东华大学),上海201620 [2]国家染整工程技术研究中心,东华大学,上海201620

出　　处：《广州化工》2014年第24期56-60,共5页GuangZhou Chemical Industry

基　　金：国家科技支撑计划(2012BAK30B03);中央高校基本科研业务费专项资金资助(2232013A3-05和CUSF-DH-D2013048)

摘　　要：采用氧氯化锆为锆源、氟化铵为络合剂、磷酸为磷源,在低温(<100℃)和常压条件下,微波辅助加热法在较短时间内制备得到规则的六角形片状结构Zr(HPO4)2·H2O(简写为α-ZrP)晶体。研究了不同反应物浓度下NH4F与ZrOCl2·8H2O摩尔比、磷酸与ZrOCl2·8H2O摩尔比、反应时间、反应温度等因素对于合成磷酸锆晶体的影响。产物采用XRD、SEM和FT-IR表征。以罗丹明B为降解对象,可见光下研究所制备磷酸锆的光催化性能。结果表明,当[Zr4+]=0.02mol/L,NH4F/Zr=6和P/Zr=40,微波加热温度90℃,反应时间为30min时制备的磷酸锆具有良好的光催化活性。At low temperature of below 100℃ and normal pressure, hexagonal crystal zirconium phosphate （α-ZrP） was quickly prepared with ZrOCl2 ·8H2O, NH4F and H3PO4 as raw materials by microwave-assisted method. The influence of the molar ratio of NH4 F and ZrOCl2 ·8H2 O, the molar ratio of H3 PO4 and ZrOCl2 ·8H2 O, reaction time and microwave heating temperature on the crystal form of α-ZrP were studied. The synthesized powders were determined by means of XRD, SEM and FT-IR. The photocatalytic bleaching of Rhodamine B was carried out in the presence of zirconium phosphate. The best processing conditions were that ZrOCl2 was 0. 02 mol/L, the molar ratio of NH4 F/Zr was 6 and the molar ratio of P/Zr was 40 , with microwave heating at 90 ℃ for 30 min. The zirconium phosphate under above conditions exhibited good visible-light activity for photodegradation.

关 键 词：微波辅助法 磷酸锆 制备 光催化 

分 类 号：TQ134.1[化学工程—无机化工]