The adsorption of dyes from aqueous solution using diatomite

Organic xenobiotics removal in constructed wetlands, with emphasis on the importance of the support matrix

“…Diatomite is a very lightweight material that is easily available and inexpensive. Due to its wide pore size distribution, high permeability, high porosity, small particle size, large surface area and chemical inertness it is considered a good adsorbent with a high adsorption capacity [249][250][251][252]. In addition, diatomite has surface charges due to the presence of ionisable functional groups, especially silanol groups, that spread over the matrix of the silica, which are suitable adsorption sites for polar organic compounds.…”

“…Diatomite has been tested as an adsorbent for several types of organics, namely dyes [250][251][252][253][254], pesticides [255], phenolic compounds [256] and other aromatics [257].…”

Synthesis of Nanosilica From Rice Husk and Optimization of the Removal of Crystal Violet Dye From Aqueous Solution

“…Due to the dyes having complex aromatic structures and a matter of great concern, they are usually biologically non-degradable and present high stability and toxicity and it is therefore necessary to treat effluents containing these and related dyes [5][6]. Different methods have been used to remove dye molecules from wastewater, which can be classified in many categories such as physical, chemical, biological, radiation, and electrochemical processes.…”

“…Adsorption is an effective and eco-friendly process for the treatment of wastewater due to its low-cost and simplicity [6]. The low-cost adsorbents such as activated clay, activated charcoal, activated carbon, zeolites, coal fly ash, were used to remove different dyes [7][8].…”

Thermal characterisation of dye-intercalated K-10 montmorillonite ceramics using photoacoustic technique

“…Some of these methods are selective, expensive and may need special infrastructure. Among all these treatment processes, adsorption is found to be highly effective [19][20][21][22][23] and diverse clay minerals can be employed for dye adsorption [24][25][26][27][28]. The surfaces of clay minerals exhibit a strong affinity to dyes, e.g.…”