CAJ | 학술논문

以Ba（NO3）2和In（NO3）3为起始物，采用水热法研究了Ba4 In2 O7的合成，分别探讨了钡铟摩尔比（Ba／In）、氢氧化钠浓度（cg ）、水热反应温度（T）、水热反应时间（t）、焙烧温度（Tb ）和时间（tb ）对Ba4 In2 O7形成的影响，确立了最佳合成条件。利用X射线衍射（XRD）、紫外‐可见漫反射光谱（UV‐vis DRS）、热重‐差热分析（TG‐DTA）和N2吸附‐脱附等温线（BET）等技术对样品进行了表征。以罗丹明B （RhB ）为降解模型，评价了Ba4 In2 O7的光催化性能。结果表明，合成的Ba4 In2 O7具有多孔蜂窝状结构，在高压汞灯（125 W）照射下，180 min ，RhB的降解率达97．3％。
이Ba（NO3）2화In（NO3）3위기시물，채용수열법연구료Ba4 In2 O7적합성，분별탐토료패인마이비（Ba／In）、경양화납농도（cg ）、수열반응온도（T）、수열반응시간（t）、배소온도（Tb ）화시간（tb ）대Ba4 In2 O7형성적영향，학립료최가합성조건。이용X사선연사（XRD）、자외‐가견만반사광보（UV‐vis DRS）、열중‐차열분석（TG‐DTA）화N2흡부‐탈부등온선（BET）등기술대양품진행료표정。이라단명B （RhB ）위강해모형，평개료Ba4 In2 O7적광최화성능。결과표명，합성적Ba4 In2 O7구유다공봉와상결구，재고압홍등（125 W）조사하，180 min ，RhB적강해솔체97．3％。
Ba(NO3 )2 and In(NO3 )3 are used as raw materials ,the synthesis of Ba4 In2 O7 is studied using hydrothermal process .The effects of molar ratio Ba :In (Ba/In) ,NaOH concentration (cg ) ,hydrothermal reaction temperature (T) ,hydrothermal reaction time (t) ,calcination tem‐perature (Tb ) and time (tb ) on the conformation of Ba4 In2 O7 are investigated respectively ,and the condition of optimal synthesis is established .T he as‐prepared samples are characterized by X‐ray diffraction (XRD) ,UV‐visible diffuse reflectance spectroscopy (UV‐vis DRS) ,termogravim‐etric analysis‐differential thermal analysis (TG‐DTA ) and N2 adsorption‐desorption isotherms (BET ) .The degradation of Rhodamine B (RhB) is served as the degradation model ,the photo‐catalytic performance of Ba4 In2 O7 samples is evaluated by monitoring the photocatalytic decompo‐sition of RhB .T he results show that the particles of as‐prepared Ba4 In2 O7 has had a porous hon‐eycomb structure .The degradation rate of RhB reaches 97 .3% under the irradiation of high pres‐sure mercury lamp (125 W) in 180 min .