A photocatalytic rotating disc reactor (PRD-reactor) with TiO₂ nanowire arrays deposited on a thin Ti plate is fabricated and tested for industrial wastewater treatment. Results indicate that the PRD-reactor shows excellent decolorization capability when tested with methyl orange (>97.5%). Advanced oxidation processes (AOP), including photocatalytic oxidation and photolytic reaction, occurred d...

Hydroxyl radicals play the key role during electrochemical oxidation and photoelectrochemical oxidation. The production and effect of hydroxyl radicals on the interface between DSA anode and water was investigated by examining the quenching effect of iso-propanol on Orange II decolorization. We observed that with an increase in electrode potential from 4 to 12 V across electrodes at pH 7.0, the...

Two grams of Kahlbaum’s alanine dissolved in 50 cc. of water were oxidized with 500 cc. of a solution containing 10.8 grams of potassium permanganate and 37.0 grams of potassium hydroxide (30 molecules). Vigorous oxidation took place at once and the temperature of the mixture rose to 37” C. After standing for forty-eight hours at room temperature complete decolorization had taken place; the pro...

By employing carbon dioxide as one source of reaction gases, carbon-doped Ti–O films were fabricated via reactive magnetron sputtering deposition. The chemical bonding configurations and microstructure the analyzed by Raman spectrum SEM, respectively. effect pH on photocatalytic activities was determined evaluation decolorization rate methyl orange under alkali, acid neutrality conditions using...

Abstract A green advanced oxidation (AO) strategy to destroy dye pollutants and remove them from aquatic environments is utilize sunlight employ thin-film semiconducting photo-reactors. In this light-driving AO method, besides the type of semiconductor material, attention electrostatic interactions between electrode great importance. paper, a couple nanostructured, narrow-bandgap, photoelectrod...

Used fly ash as raw material, it was modified by acid, alkali and high temperature to produce adsorbent, sulfuric acid sodium hydroxide adsorbent adsorbent. In this paper, the effects of dosage, adsorption time, initial dye concentration, wastewater pH on were studied. The results showed that: had a good treatment effect dye; when dosage 1.00 g, time 90 min, 4, 45 °C, decolorization rate 60 mg/...

A potential bacterial strain PMS82, capable of degrading an azo dye Acid orange as a sole source of carbon was isolated from common effluent treatment plant of Ankleshwar, India. The 16S rDNA sequence and phenotypic characteristics indicated that an isolated organism as Bacillus megaterium PMS82. This strain exhibited complete decolorization of Acid orange (100 mg/L) within 16 h, while maximall...

nano-cus powders were synthesized with chemical solution method. xrd and sem and spectrophotometry were used for characterization of the cus powders. xrd analysis indicated that tetragonal cus was the main phase with particle size of 16.2nm and little cu2s phase was present. scanning electron microscopy (sem) analysis revealed that powder was plate like and had very little aspect ratio in morph...

A simple, precise, sensitive and accurate method was developed for rapid determination of trace quantities of iodate. The method is based on the accelerating effect of iodate on the reaction of bromate and chloride acid in the presence of hydrazine in acidic media. The decolorization of Methyl Orange with the reaction products was used to monitor the reaction spectrophotometrically at 525 nm. I...

BACKGROUND Fungal laccases are multicopper oxidases with huge applicability in different sectors. Here, we describe the development of a set of high-throughput colorimetric assays for screening laccase libraries in directed evolution studies. RESULTS Firstly, we designed three colorimetric assays based on the oxidation of sinapic acid, acetosyringone and syringaldehyde with λmax of 512, 520 a...