Properties of different natural organic matter influence the adsorption and aggregation behavior of TiO 2 nanoparticles

Luo, Muxi; Huang, Yuxiong; Zhu, Miao; Tang, Yuening; Ren, Tongxuan; Ren, Jie; Wang, Hong Tao; Li, Fengting

doi:10.1016/j.jscs.2016.01.007

Cited by 52 publications

(30 citation statements)

References 47 publications

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“…1(A) and (B)). These results indicate that IS will lead to the compression of the electric double layer and charge screening [52]. When both 5 mmol/L NaCl and 1 mg/L HA were added into the suspension ( Fig.…”

Section: Tsi Measurements Of Heteroaggregation At Different Ceo 2 /Timentioning

confidence: 82%

“…The stock was stored at 4°C. To study the effect of low concentration HA for heteroaggregation of ENPs [52], HA = 1 mg/L, the TOC of the HA was 0.41 mg/L, as determined by Shimadzu TOC V-CPN.…”

Section: Synthetic Watermentioning

confidence: 99%

“…To detect the dominant effect of CeO 2 and TiO 2 ENPs on heteroaggregation, the experiments were conducted by mixing CeO 2 and TiO 2 ENPs stock solution with different mass ratios (0.1/9.9, 1/9, 5/5, 9/1, 9.9/0.1), for a total concentration of 10 mg/L (Our preliminary study showed [26,52,58] that 10 mg/L ENPs could more clearly indicate the aggregation behavior even if it may be unable to represent low environment concentration of ENPs like ng/L or μg/L). 5 mmol/L NaCl was used to provide IS.…”

Section: Aggregation and Co-sedimentation Experimentsmentioning

confidence: 99%

“…Particularly, NOM can adsorb onto the surface of TiO 2 and CeO 2 ENPs, form a coating layer, result in steric hinderance and electrostatic repulsion and have effect on the heteroaggregation of ENPs [8,26,51]. Luo et al [52] showed that the properties of humic acid (HA) and fulvic acid (FA) influence the adsorption and aggregation of TiO 2 ENPs (10 mg/L), indicating that NOM can adsorb onto the surface of TiO 2 ENPs. However, total organic carbon (TOC) measurements may not adequately characterize the aggregation behavior between ENPs at low NOM concentration [53].…”

Section: Introductionmentioning

confidence: 99%

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Heteroaggregation of CeO2 and TiO2 engineered nanoparticles in the aqueous phase: Application of turbiscan stability index and fluorescence excitation-emission matrix (EEM) spectra

Luo

Ren

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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A B S T R A C TCeO 2 and TiO 2 engineered nanoparticles (ENPs) are being increasingly used in many applications. Due to their properties, heteroaggregation between these two types of ENPs is very likely, which can determine their fate and transport. However, the heteroaggregation behavior of CeO 2 and TiO 2 ENPs is still not clear, partly due to the lack of appropriate tools. In this study, we investigated the application of Turbiscan Stability Index (TSI) for the measurements of CeO 2 /TiO 2 ENP heteroaggregation. TSI was found to be effective to investigate the heteroaggregation and stability of the CeO 2 -TiO 2 ENPs system. Increasing CeO 2 /TiO 2 ENPs ratio reduces the TSI values, indicating higher stability. Fluorescence excitation-emission matrix (EEM) spectra were used to study the interface interaction between humic acid (HA) and CeO 2 /TiO 2 ENPs. The TSI value of ENPs were rising with the increasing of CeO 2 /TiO 2 ENPs ratios in the H River or Q Reservoir water. In addition, their variation trends were http://dx

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Section: Tsi Measurements Of Heteroaggregation At Different Ceo 2 /Timentioning

confidence: 82%

Section: Synthetic Watermentioning

confidence: 99%

Section: Aggregation and Co-sedimentation Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Heteroaggregation of CeO2 and TiO2 engineered nanoparticles in the aqueous phase: Application of turbiscan stability index and fluorescence excitation-emission matrix (EEM) spectra

Luo

Ren

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…The humic acid (HA) was purchased from Sigma-Aldrich, and the basic features have been characterized in others' work [20]. In addition, our previous work has presented the features of this HA [10]. The stock solution of HA was prepared by adding 0.16 g HA into 100 mL deionized water.…”

Section: Collection and Preparation Of Natural Soil Coagulantmentioning

confidence: 99%

Study on natural soil coagulants for point-of-use drinking water treatment

Wang

Getahun

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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Natural soil coagulants were used for domestic drinking water treatment in Ethiopia because of lacking drinking water supply. In this study, two soils were collected from Ethiopia and jar test was used to investigate the optimum working conditions, performance and safety of them. The turbidity removal efficiencies of soil A and soil B are 74.5% and 91.1% (initial turbidity=400 NTU), respectively. The pH of purified water can meet drinking water standards of Ethiopia (pH=6.5-8.5). Both soils contribute to remove TOC when the initial concentration of it is high. A small amount (0.5 mg. L-1 or 1 mg. L-1) of poly-aluminum chloride can improve the performance of soil coagulants for the removal of turbidity. The application of soil coagulants didn't introduce coliforms, although the total bacteria number of treated water increased to 40 CFU (soil A) and 81 CFU (soil B), still meeting the drinking water quality standards (<=100 CFU).

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Effects of Natural Organic Matter on Bioavailability of Elements from Inorganic Nanomaterial

Urík

Kolenčík

Fujitake

et al. 2021

Nanotechnology in Plant Growth Promotion and Protection

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Properties of different natural organic matter influence the adsorption and aggregation behavior of TiO 2 nanoparticles

Cited by 52 publications

References 47 publications

Heteroaggregation of CeO2 and TiO2 engineered nanoparticles in the aqueous phase: Application of turbiscan stability index and fluorescence excitation-emission matrix (EEM) spectra

Heteroaggregation of CeO2 and TiO2 engineered nanoparticles in the aqueous phase: Application of turbiscan stability index and fluorescence excitation-emission matrix (EEM) spectra

Study on natural soil coagulants for point-of-use drinking water treatment

Effects of Natural Organic Matter on Bioavailability of Elements from Inorganic Nanomaterial

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