【摘要】：基于正交設(shè)計(jì)理論、采用化學(xué)液相沉淀法制備La2O3/CNTs二元納米復(fù)合粒子,用傅立葉變換紅外光譜儀(FTIR)、X射線衍射儀(XRD)兩種儀器對(duì)其進(jìn)行表征。利用OPT-2000型光譜光度計(jì)對(duì)不同附加物煙火藥配方的發(fā)光強(qiáng)度以及光譜圖進(jìn)行測(cè)試,采用熱分析手段探討了不同附加物對(duì)高氯酸鉀的熱分解影響。研究結(jié)果表明,制備La2O3/CNTs二元納米復(fù)合粒子的最佳條件為碳納米管與氧化鑭質(zhì)量比1:0.08、轉(zhuǎn)速達(dá)到1300r/min、水浴溫度為40℃、煅燒溫度為700℃。經(jīng)傅里葉變換紅外分析與X射線衍射分析得出氧化鑭粒子能夠在碳納米管表面負(fù)載,粒徑為45.9nm。通過絡(luò)合滴定分析,可知氧化鑭在碳納米管上的負(fù)載量為62%。含納米復(fù)合粒子的La2O3/CNTs-Al-KCl O4配方的發(fā)光強(qiáng)度優(yōu)于單一添加物的納米La2O3-Al-KCl O4的配方以及CNTs-Al-KCl O4的配方,其發(fā)光強(qiáng)度可達(dá)到379.933lx,對(duì)不同配方煙火藥光譜圖分析可得到與光強(qiáng)度相吻合及La2O3/CNTs-Al-KCl O4配方的發(fā)光強(qiáng)度最大的結(jié)論。通過熱分析手段最終得出納米復(fù)合粒子La2O3/CNTs的催化效應(yīng)優(yōu)于納米氧化鑭與純化的碳納米管。
[Abstract]:Based on orthogonal design theory, binary La2O3/CNTs nanoparticles were prepared by chemical liquid precipitation method and characterized by Fourier transform infrared spectroscopy (FTIR) (FTIR) X-ray diffractometer (XRD). The luminescence intensity and spectra of different additives were measured by OPT-2000 spectrometer. The thermal decomposition of potassium perchlorate was investigated by thermal analysis. The results show that the optimum conditions for preparing La2O3/CNTs binary composite particles are: mass ratio of carbon nanotubes to lanthanum oxide 1: 0.08, rotational speed 1300r / min, water bath temperature 40 鈩，

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