【摘 要】
：
以甘肃白银坡缕石黏土为原料,采用溶胶-凝胶法制备氧化铝/坡缕石复合材料,通过复合材料对水中Cr(Ⅵ)的静态吸附实验,研究了氧化铝与坡缕石的质量比、反应温度、焙烧温度及焙
论文部分内容阅读
以甘肃白银坡缕石黏土为原料,采用溶胶-凝胶法制备氧化铝/坡缕石复合材料,通过复合材料对水中Cr(Ⅵ)的静态吸附实验,研究了氧化铝与坡缕石的质量比、反应温度、焙烧温度及焙烧时间对复合材料吸附性能的影响。结果表明,氧化铝与坡缕石的质量比为0.4,反应温度50℃,300℃下焙烧4 h,复合材料对Cr(Ⅵ)的吸附性能较好,吸附量达22.5 mg/g。
Alumina / palygorskite composites were prepared by sol-gel method from white silver palygorskite clay in Gansu. Through the static adsorption experiment of Cr (Ⅵ) in water, the mass ratio of alumina and palygorskite Ratio, reaction temperature, calcination temperature and calcination time on the adsorption properties of composites. The results show that the mass ratio of alumina to palygorskite is 0.4, the reaction temperature is 50 ℃ and calcination is carried out at 300 ℃ for 4 h. The adsorption capacity of Cr (Ⅵ) on the composites is good, and the adsorption capacity is 22.5 mg / g.
其他文献
Lead is a toxic metal that affects many organ systems and functions in humans.In the majority of adults,chronic lead poisoning comes from exposures to work plac
In mountain areas,radar observations are often contaminated(1)by echoes from high-speed moving vehicles and(2)by point-wise ground clutter under either normal p
AIM:To measure plasma ghrelin levels in children and adolescents,analyze the associated factors,and investigate the role of ghrelin in obesity,insulin resistanc
Increasing use of pyrethroid insecticides has resulted in concerns regarding potential effects on human health and ecosystems.Cypermethrin and its metabolite 3-
Increased precipitation during the vegetation periods was observed in and further predicted for Inner Mongolia.The changes in the associated soil moisture may a
目的：观察终末热灌注对心脏移植术中猪供体心脏的保护作用。方法：12对配型成功的同家系瑞典猪随机分为实验组与对照组，每组6对，分别行心脏移植术。对照组手术完成后正常放开主动
在实验室条件下,对南蛇藤(Celastrus orbiculatus Thunb)种子的形态特征、千粒重、生活力、吸水速率及萌发特征进行了初步研究。结果表明:南蛇藤种子平均大小为0.413 cm×0.220 cm×0.194 cm(长×宽×厚),千粒重约8.269 g;自然条件下产出有活力种子比例为69%左右;种皮具有较好的透水性,但因其较厚、硬的外种皮束缚了种胚的生长,影响其透气性,从而引起种子
目的 建立基于原核表达的P0蛋白抗体ELISA检测方法.方法 用原核表达的P0蛋白作为包被抗原,制成固相载体.向微孔中分别加入待测样品,然后再加入辣根过氧化物酶标记抗人IgG或Ig
2015年4月8日在南海南沙群岛乐斯暗沙附近海域(11°20°N、114°30°E)采集到1 ind鮣科鱼类标本,经鉴定为虱鮣Phtheirichthys lineatus(Menzies,1791),隶属鲈形目(Perciforme