Influence of dissolved organic matter on sorption and desorption of MCPA in ferralsol

Structural characteristics, analytical techniques and interactions with organic contaminants of dissolved organic matter derived from crop straw: a critical review

“…2(b), recent studies further reported that CDOM can form complexes with OCs or promote OCs migration in the soil by competing with the adsorption sites of soil particles. 126,127 It can also enhance the adsorption capacity of OCs by coadsorption or cumulative adsorption. 128 The so-called coadsorption is OCs being preferentially adsorbed to one or more components of the CDOM leading to the formation of complexes and CDOM at the same time adsorbed to the soil particles.…”

Removal of 4-chloro-2-methylphenoxyacetic acid from water by MIL-101(Cr) metal-organic framework: kinetics, isotherms and statistical models

“…It has a high water solubility of 825 mg l −1 with a field half-life of 31 days [ 7 ]. When excessively applied, their residues may remain in the soil, thereby making it easily available to runoff, and to be leached down to contaminate surface and groundwater [ 8 ]. Thus, it is easily transported from a point source to non-point sources over long distance [ 9 ].…”

“…Of these methods, adsorption has been singled out to be the most practical and promising technique due to its low cost, simple operations, high selectivity, environmentally benign, convenient recycling and availability of various adsorbents materials [ 16 ]. Some adsorbents such as activated [ 17 , 18 ], biochar [ 19 ], clay minerals [ 8 ] and goethite [ 20 ] have been previously used for MCPA adsorption. However, the ideal adsorbent is expected to possess a relatively high surface area, large pore volume, good water and thermal stability under harsh condition [ 21 ].…”

Adsorption of dicamba and MCPA onto MIL-53(Al) metal–organic framework: response surface methodology and artificial neural network model studies

“…2,3 The excess use of dicamba and MCPA deteriorates the quality of water resources due to their toxicity, slow biodegradability and persistence in aqueous media. 4 This has led to uncontrollable non-point source effluent in the form of agricultural run-off and leaching, which pollutes surface and ground waters. 5 Studies have indicated that dicamba and MCPA are easily biomagnied and accumulate in living organisms through the food chain, causing negative impacts such as endocrine disruption of aquatic animals and humans.…”

“…Of these methods, adsorption has been singled out to be the most practical due to its cost-effectiveness, simple operations, convenient recycling and availability. 12,13 The most frequently used adsorbent for the removal of dicamba and MCPA is activated carbon; 14 however, other adsorbents, such as organic materials, 4 graphene oxide, 15 goethite, 16 biochar, 17,18 and clay materials, 19 have recently been proposed. It has been recognised that potential adsorbents must have high surface areas, large pore volumes, and good thermal and water stabilities.…”