凹凸棒土对罗丹明B的吸附性能
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摘要
研究了凹凸棒土(ATT)对罗丹明B (RhB)的吸附性能,讨论了反应温度和溶液pH值对RhB吸附过程的影响.实验结果显示,在ATT的投放量为0.800 0g、温度为313K、RhB浓度为25mg/L以及pH值为5.6的条件下,ATT吸附RhB 90min后溶液中RhB的剩余率为15.1%,说明ATT对RhB具有良好的吸附性能,且吸附过程符合Freudlich吸附模型.
The adsorption properties of attapulgite(ATT)to rhodamine B(RhB)were studied,and the effects of reaction temperature and pH value on the adsorption processes were also discussed.The experimental results showed that when the amount of ATT was 0.800 0 g,RhB concentration was25 mg/L,temperature was 313 K,and pH value was controlled at 5.6,the residual rate of RhB in solution was 15.1%after adsorption for 90 min.ATT had the best adsorption performance of RhB.In addition,the adsorption process conformed to the Freudlich adsorption model.
The adsorption properties of attapulgite(ATT)to rhodamine B(RhB)were studied,and the effects of reaction temperature and pH value on the adsorption processes were also discussed.The experimental results showed that when the amount of ATT was 0.800 0 g,RhB concentration was25 mg/L,temperature was 313 K,and pH value was controlled at 5.6,the residual rate of RhB in solution was 15.1%after adsorption for 90 min.ATT had the best adsorption performance of RhB.In addition,the adsorption process conformed to the Freudlich adsorption model.
引文
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[4]任磊,程实,刘守清.高岭土对罗丹明B的吸附及光-Fenton降解研究[J].苏州科技学院学报(工程技术版),2009,22(3):17-21.
[5]杨娜,谢霖湘,程秀梅,等.柏树锯末对废水中罗丹明B的吸附性能研究[J].化学研究与应用,2013,25(3):351-354.
[6]张秀华,周云龙,胡志彪,等.TiO2/竹炭复合材料处理废水中的罗丹明B[J].广州化工,2011,39(21):41-43.
[7]秦从宇,王郑,薛侨,等.凹凸棒土轻质滤料对水中亚甲基蓝的吸附性能研究[J].化工技术与开发,2017,46(12):47-52.
[8]WANG Z,ZHANG L S,JING Z Q.Study the adsorption of phenol on attapulgite-zeolite nano-structure adsorbent from aqueous solution[J].Key Engineering Materials,2010,426:118-121.
[9]孔泳,王志良,倪珺华,等.凹凸棒土应用于重金属离子吸附剂的研究[J].分析测试学报,2010,29(12):1 224-1 227.
[10]姜金利,李彬,郑欣燕,等.P2O5-CaO-Fe2O3-SiO2复合吸附剂制备及其对Ni 2+吸附性能[J].湖州师范学院学报,2018,40(2):28-32.
[11]李杰,强颖怀,潘业才.凹凸棒土、活性炭和TiO2多孔陶瓷球对印染废水的处理[J].中国非金属矿工业导刊,2011(2):45-47.
[12]TANG J,WEN H F,CHAI P L,et al.Study of surface raman and fluorescence enhancement of RhB molecules adsorbed on Au nanoparticles[J].Journal of Nano Research,2012,20(20):33-41.
[13]LIU P,JIANG L,ZHU L,et al.Synthesis of covalently crosslinked attapulgite/poly(acrylic acid-co-acrylamide)nanocomposite hydrogels and their evaluation as adsorbent for heavy metal ions[J].Journal of Industrial&Engineering Chemistry,2015,23:188-193.
[14]徐媛媛,范雪荣,王强,等.凹凸棒土与活性炭对水溶性染料的吸附研究[J].印染助剂,2007,24(6):32-33.
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