含 TiO 的废物回收及利用光催化降解反应性染料溶液。

Recycling of TiO-containing waste and utilization by photocatalytic degradation of a reactive dye solution.

机构信息

Department of Environmental Engineering, Mersin University, Mersin, 33343, Turkey.

Department of Environmental Engineering, Mersin University, Mersin, 33343, Turkey; Department of Environmental Engineering, Process Engineering Faculty, Saleh Boubnider University, Constantine, 25000, Algeria.

出版信息

Water Sci Technol. 2021 Mar;83(5):1242-1249. doi: 10.2166/wst.2020.606.

DOI:10.2166/wst.2020.606

PMID:33724950

Abstract

Recently, the utilization of wastes, recovery of high value-added products from waste, and their use as raw materials in other industries with the logic of industrial symbiosis has become an important issue. In this study, removal efficiency of Reactive Orange 16 (RO16) dye from aqueous solution was studied using TiO catalyst recycled from an industrial waste effluent. The recycling of TiO waste from a paints manufacturing industry was carried out by sintering the TiO-containing waste. The catalyst usability of TiO-containing powder was then investigated in the removal of RO16 dye by photocatalytic oxidation process. In photocatalytic oxidation studies, TiO/UV and TiO/UV/HO processes were investigated, where the effect of annealing temperature, the effect of HO concentration, and the adsorption and photocatalytic effects on RO16 dye removal were studied. The results showed that 100% RO16 removal was obtained for the 10 mg/L initial RO16 concentration using the TiO (1 g/L)/UV process. At high initial RO16 concentration (50 mg/L), 100% RO16 removal was achieved by adding 10 mM HO.

摘要

最近，利用废物、从废物中回收高附加值产品，并将其作为工业共生逻辑中其他行业的原材料，已成为一个重要问题。在这项研究中，使用从工业废水回收的 TiO 催化剂研究了活性橙 16（RO16）染料从水溶液中的去除效率。通过烧结含 TiO 的废物，实现了从涂料制造工业中回收 TiO 废物。然后，研究了含 TiO 粉末的催化剂在光催化氧化过程中去除 RO16 染料的可用性。在光催化氧化研究中，研究了 TiO/UV 和 TiO/UV/HO 工艺，研究了退火温度的影响、HO 浓度的影响以及对 RO16 染料去除的吸附和光催化效应。结果表明，对于初始 RO16 浓度为 10 mg/L 的 10 mg/L 初始 RO16 浓度，使用 TiO（1 g/L）/UV 工艺可获得 100%的 RO16 去除率。在初始 RO16 浓度较高（50 mg/L）的情况下，通过添加 10 mM HO 可实现 100%的 RO16 去除率。