西南科技大学学报
西南科技大學學報
서남과기대학학보
JOURNAL OF SOUTHWEST CHINA INSTITUTE OF TECHNOLOGY
2014年
1期
4-9
,共6页
焦磷杂酸盐%无机离子交换剂%铯%吸附
焦燐雜痠鹽%無機離子交換劑%銫%吸附
초린잡산염%무궤리자교환제%색%흡부
Pyrophosphoric Heteropolyacid salt%Inorganic ion-exchanger%Cesium%Adsorption capacity
以焦磷酸钾、钼酸钠、氯化铁、氧氯化锆等为原材料，制备了焦磷钼酸锆（ ZMPP）、焦磷氧酸锆（ ZOPP）、焦磷钼酸铁（FMPP）3种焦磷杂酸盐无机离子交换剂，采用XRF，XRD，FT-IR，SEM对合成样品进行了表征，测定了合成样品对Cs＋的吸附性能，研究了合成样品的耐酸性。结果表明：ZMPP，ZOPP，FMPP为组成不定的无定形态物质，其中ZMPP，ZOPP呈箔状，FMPP呈凝胶状；ZMPP，ZOPP，FMPP三者对Cs＋均具有较好的吸附性，实验条件下，以常温合成的ZMPP-25，FMPP吸附性较好，两者的吸附量可达2．38 mmol/g和2．36 mmol/g；少量Mo元素的存在，对ZMPP-25，ZOPP吸附Cs＋的性能影响较大，前者较后者提高了约50％；3种交换剂的耐酸性从强到弱的顺序为ZMPP-25＞ZOPP＞FMPP。
以焦燐痠鉀、鉬痠鈉、氯化鐵、氧氯化鋯等為原材料，製備瞭焦燐鉬痠鋯（ ZMPP）、焦燐氧痠鋯（ ZOPP）、焦燐鉬痠鐵（FMPP）3種焦燐雜痠鹽無機離子交換劑，採用XRF，XRD，FT-IR，SEM對閤成樣品進行瞭錶徵，測定瞭閤成樣品對Cs＋的吸附性能，研究瞭閤成樣品的耐痠性。結果錶明：ZMPP，ZOPP，FMPP為組成不定的無定形態物質，其中ZMPP，ZOPP呈箔狀，FMPP呈凝膠狀；ZMPP，ZOPP，FMPP三者對Cs＋均具有較好的吸附性，實驗條件下，以常溫閤成的ZMPP-25，FMPP吸附性較好，兩者的吸附量可達2．38 mmol/g和2．36 mmol/g；少量Mo元素的存在，對ZMPP-25，ZOPP吸附Cs＋的性能影響較大，前者較後者提高瞭約50％；3種交換劑的耐痠性從彊到弱的順序為ZMPP-25＞ZOPP＞FMPP。
이초린산갑、목산납、록화철、양록화고등위원재료，제비료초린목산고（ ZMPP）、초린양산고（ ZOPP）、초린목산철（FMPP）3충초린잡산염무궤리자교환제，채용XRF，XRD，FT-IR，SEM대합성양품진행료표정，측정료합성양품대Cs＋적흡부성능，연구료합성양품적내산성。결과표명：ZMPP，ZOPP，FMPP위조성불정적무정형태물질，기중ZMPP，ZOPP정박상，FMPP정응효상；ZMPP，ZOPP，FMPP삼자대Cs＋균구유교호적흡부성，실험조건하，이상온합성적ZMPP-25，FMPP흡부성교호，량자적흡부량가체2．38 mmol/g화2．36 mmol/g；소량Mo원소적존재，대ZMPP-25，ZOPP흡부Cs＋적성능영향교대，전자교후자제고료약50％；3충교환제적내산성종강도약적순서위ZMPP-25＞ZOPP＞FMPP。
Three kinds of pyrophosphoric heteropolyacid salt inorganic ion -exchangers, including zirconyl molybdopyrophosphate ( ZMPP ) , zirconyl oxypyrophosphate ( ZOPP ) and ferric molybdopyrophosphate ( FMPP) , were prepared using tetrapotassium diphosphate , sodium molybdate , ferric chloride and zirco-nium oxychloride as raw materials .The properties of synthesized samples were characterized by X -ray fluorescence (XRF), X-ray diffraction ( XRD), fourier transform infrared spectroscopy ( FTIR) and scanning electron microscope (SEM).In addition, the cesium ion absorption properties and acid resist-ance of the synthesized samples were investigated as well .The results show that the ZMPP , ZOPP and FMPP were amorphous substances with uncertain compositions .The morphologies of the ZMPP and ZOPP were foil-like.The FMPP appeared to be the typical gel -like.The ZMPP, ZOPP and FMPP possessed excellent cesium ion absorption properties .The cesium ion absorption properties of ZMPP -25 and FMPP were better under the room temperature synthesis condition .The cesium ion absorption capacities of ZMPP-25 and FMPP were 2.38 mmol/g and 2.36 mmol/g, respectively.The existence of a small amount Mo element had great influence on the cesium ion absorption properties of ZMPP -25 and ZOPP.The former was about 50%higher than the latter .The acid resistance order of the three kinds of exchangers was as follows:ZMPP-25>ZOPP>FMPP.
