Influences of preparative methods of humic acids on the sorption of 2,4,6-trichlorophenol

Interactions of the products of oxidative polymerization of hydroquinone as catalyzed by birnessite with Fe (hydr)oxides – an implication of the reactive pathway for humic substance formation

“…These bands were present only for the HA sample, suggesting that the products synthesized from HQs lacked aliphatic carbons and differed signicantly in chemical composition from the HAs, which contained both aromatic and aliphatic domains. 23 Furthermore, elemental analyses of the HQ samples showed lower H/C atomic ratio values than HA, indicating that HA was more aliphatic than the HQ samples, which was consistent with the FTIR results (Table 1).…”

“…The Yangming mountain soil is classied as Andisol. 22 The physical and chemical properties of the volcanic soil can be referred to in the reports of Huang et al 23 and Chang et al 24 The major minerals in the volcanic soils include kaolinite, illite, quartz, gibbsite, chlorite, and high contents of Fe/Al noncrystalline minerals. The total organic carbon is 156 g kg À1 .…”

Functions of Natural Organic Matter in Changing Environment

“…1, Fig. It is reported that the K f value of 2,4,6-trichlorophenol correlates to the aliphaticity of soil humic acids (Huang et al 2008). "M", "C" and "Q" for each peak represent "montmorillonite", "cristobalite" and "quartz", respectively montmorillonite peaks at 2y ¼ 7.62 for the HuLS-Bent and at 2y ¼ 9.04 for the Bent were selected to calculate basal spacing values for the interlayer.…”

“…Some research on HSs from this region has been carried out by Huang et al (2008). Hence, soil was chosen from.…”

Adsorption of pentachlorophenol to a humin-like substance–bentonite complex prepared by polycondensation reactions of humic precursors

“…The level of PCP adsorption to soils is dependent on the hydrophobicity of humic substances on the surface of soil particles (Paolis and Kukkonen, 1997;. In addition, the sorption coefficients for 2,4,6-trichlorophenol are correlated with the aliphalicity of soil humic acids (Huang et al, 2008). Thus, the enhanced affinity of PCP for the HuLS-bentonite complex can be attributed to an increase in the hydrophobicity of the adsorbent surface by the loading of HuLS.…”