Highly efficient Cr(VI) removal from industrial electroplating wastewater over Bi2S3 nanostructures prepared by dual sulfur-precursors: Insights on the promotion effect of sulfate ions

Microporous Activated Carbon from Pisum sativum Pods Using Various Activation Methods and Tested for Adsorption of Acid Orange 7 Dye from Water

“…The Harkins–Jura isotherm is frequently used in the form Equation (10): where A HJ and B HJ are the isotherm constant and multilayer adsorption heterogeneous pore distribution. The Halsey isotherm model [ 91 ] is applicable to multilayer adsorption, and heteroporous substances can be used to fit the Halsey equation [ 91 , 92 ]. The Halsey model is frequently used with the following Equation (11): where n H and K H are Halsey constants.…”

Composite modification of carbon fiber cathode with tree-like branched polypyrrole-microwires and polyaniline-nanorods for enhancing hexavalent chromium reduction

“…Cr(VI) removal by ERD with different cathodes 10 mg L −1 Cr(VI) contaminated solution was prepared with a certain amount of K 2 Cr 2 O 7 and DI water, and the solution pH was adjusted to 2.0 with the concentrated H 2 SO 4 because of the common acidic conditions (pH of 1-3) in leather manufacturing and electroplating industries. 22,23 Cr(VI) removal performance by ERD with different cathodes was compared under a flux of 1000 L h −1 m −2 and voltages from 1.2 to 1.5 V with continuous operation of 120 min.…”

Synthesis and photocatalytic activity of LaTiO2N using titanium oxide nanosheet/La3+ hybrids as a precursor

“…Photocatalytic overall water splitting is one of the most promising technologies to produce H 2 and O 2 from water using solar energy. 1–3 Ever since the discovery of photoelectrochemical water splitting using the TiO 2 –Pt system, 4 various photocatalysts such as TiO 2 , 5 SrTiO 3 , 6 WO 3 , 7 TaON, 8 Ta 3 N 5 , 9 BiVO 4 (ref. 10 ) and LaTiO 2 N 11 have been reported.…”