What is attapulgite clay?

Received 16th March 2024 , Accepted 14th May 2024 Attapulgite clay, due to its unique crystalline hydrated magnesium–aluminium silicate composition and layer-chain structure, possesses exceptional adsorption and catalytic properties, which enable it or its composites to be utilized as adsorbents and catalysts for wastewater treatment.

Does polyaniline coated attapulgite remove humic acid in water?

Wang et al.83 used polyaniline coated attapulgite to remove humic acid in water, and the adsorption effect of coated attapulgite was significantly higher than that of unmodified attapulgite, the maximum adsorption capacity can reach 61.35 mg g −1.

Does surface modification affect adsorption and catalysis performance of attapulgite composites?

While surface modification maybe “sacrifice” the negative charge and pore of attapulgite composites, organic or inorganic modification of attapulgite exhibit good adsorption and catalysis performance due to the surface functional groups carried by the organics or inorganic materials.

What is attapulgite adsorption and catalytic efficiency?

The morphology and structure properties of attapulgite-based composite materials play a crucial role in their adsorption and catalytic efficiency, making them directly relevant to their performance. Characterization techniques such as BET, SEM, TEM, FT-IR, XRD, and XPS are commonly used to analyze attapulgite and attapulgite-based catalysts.

What is attapulgite/carbon (apt/C)?

Tang et al.95 developed a cost-effective attapulgite/carbon (APT/C) composite for wastewater treatment using waste hot-pot oil as a carbon precursor through a facile one-step calcination process. The optimal adsorption capacities reached 215.83 mg g−1, and 256.48 mg g−1 for methyl violet and tetracycline, respectively.

Why is attapulgite a silico aluminate?

As a silico-aluminate mineral, attapulgite exhibits infrared spectral characteristic peaks that provide insights into its structure. The prominent peaks observed around 3500 cm −1 primarily correspond to the –O–H stretching vibration.