Laser induced fluorescence detection of R6G dye adsorbed on Fe3O4 nanomaterials

IF 1.4 Q4 WATER RESOURCES
Yasmin El-Dakrory, M. Sliem, Maha Abdelkreem, S. H. Hassab Elnaby, R. Rezk
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引用次数: 0

Abstract

This study investigates the comparison between magnetite nanoparticles loaded tea waste (MNLTW) and magnetite nanoparticles loaded reduced graphene oxide nanosheets (MNPs@rGO), as effective adsorbents for the removal of R6G dye from effluents. XRD, TEM, and SEM techniques were used to characterize the proposed adsorbents. The adsorption process was optimized under the parameters of initial concentration, contact time, pH, and the quantity of adsorbents. An amount of 0.15 g of both adsorbents removed about 87% of R6G by MNLTW and 65% by (MNPs@rGO) from 100 ml of a 23.95 mg/l concentrated solution in 40 and 60 min for MNLTW and (MNPs@rGO), respectively at pH 7. LIF measurements have developed better results than those of spectrophotometer. The isothermal analysis according to Langmuir isotherm was (R2  = 0.98) for (MNPs@rGO) and Temkin isotherm (R2 =  0.89) for MNLTW. The kinetic study is well described with a pseudo-second order model.
Fe3O4纳米材料吸附R6G染料的激光诱导荧光检测
本研究考察了负载茶渣(MNLTW)的纳米磁铁矿和负载还原氧化石墨烯纳米片(MNPs@rGO)的纳米磁铁矿作为去除废水中R6G染料的有效吸附剂。采用XRD、TEM和SEM等技术对所制备的吸附剂进行了表征。在初始浓度、接触时间、pH、吸附剂用量等条件下,对吸附过程进行了优化。在pH为7的条件下,两种吸附剂用量均为0.15 g, MNLTW和(MNPs@rGO)分别在40分钟和60分钟内从100 ml 23.95 mg/l的浓溶液中去除约87%的R6G, (MNPs@rGO)去除65%的R6G。LIF测量取得了比分光光度计更好的结果。(MNPs@rGO)采用Langmuir等温线(R2 = 0.98), MNLTW采用Temkin等温线(R2 = 0.89)进行等温分析。用拟二阶模型很好地描述了动力学研究。
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来源期刊
CiteScore
2.90
自引率
16.70%
发文量
31
期刊介绍: JAWER’s paradigm-changing (online only) articles provide directly applicable solutions to water engineering problems within the whole hydrosphere (rivers, lakes groundwater, estuaries, coastal and marine waters) covering areas such as: integrated water resources management and catchment hydraulics hydraulic machinery and structures hydraulics applied to water supply, treatment and drainage systems (including outfalls) water quality, security and governance in an engineering context environmental monitoring maritime hydraulics ecohydraulics flood risk modelling and management water related hazards desalination and re-use.
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