久久国产精品午夜一区_91精品國產高清久久久久久91_?级毛片免费全部播放_欧美色图在线视频一区二区三区_国产综合亚洲一区二区三区_中文字幕熟女网_国产精品男人爽免费视频_九九无码网战_亚洲日本三级电影在线观看_欧美日韩DVD手机在线不卡

文獻名： Synthesis of MnO2/cellulose fiber nanocomposites for rapid adsorption of insecticide compound and optimization by response surface methodology

 

作者： Vinod Kumar Gupta^a, AliFakhri^b,d, Shilpi Agarwal^a, Nima Sadeghi^c

a    Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa

b    Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran

d    Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran

c    Department of Environmental Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

 

摘要：The MnO2/Cellulose fiber Nanocomposites have been prepared via the microwave-assisted hydrothermal method. The characteristic structure of MnO2/Cellulose fiber Nanocomposites was analyzed using X-ray diffraction, photoluminescence and UV–vis spectra, Transmission electron Microscopy, N2 adsorption-desorption and Scanning electron microscopy instrumental techniques. BET surface area and crystallite size values of MnO2/cellulose fiber nanocomposites have been found as 87.064 m2/g and 70.0 nm, respectively. Response Surface Methodology (RSM) has been used for adsorption of Insecticide compound such as Toxaphene by prepared adsorbent. MnO2/Cellulose fiber Nanocomposites shows maximum removal of 96.5% at initial Toxaphene concentration of 5.0 mg/L, pH 3 and adsorbent dose of 5.0 g/L. Kinetic and equilibrium data follow pseudo-second order and Langmuir isotherm model, respectively. Adsorption capacity of MnO2/Cellulose fiber Nanocomposites has been found to be 5.465 mg/g.