CAJ | 학술논문

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ZrOCl2·8H2 O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+]=0.02 mol/L, NH4 F/Zr=6和P/Zr=40,微波加热温度90℃,反应时间为30 min时制备的磷酸锆具有良好的光催化活性。
채용양록화고위고원、불화안위락합제、린산위린원,재저온(<100℃)화상압조건하,미파보조가열법재교단시간내제비득도규칙적륙각형편상결구Zr(HPO4)2·H2O(간사위α-ZrP)정체。연구료불동반응물농도하NH4F여ZrOCl2·8H2O마이비、린산여ZrOCl2·8H2 O마이비、반응시간、반응온도등인소대우합성린산고정체적영향。산물채용XRD、 SEM화FT-IR표정。이라단명B위강해대상,가견광하연구소제비린산고적광최화성능。결과표명,당[ Zr4+]=0.02 mol/L, NH4 F/Zr=6화P/Zr=40,미파가열온도90℃,반응시간위30 min시제비적린산고구유량호적광최화활성。
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.